projects/dwt2: org.eclipse.jface/src/org/eclipse/jface/util/Geometry.d annotate

author	Frank Benoit <benoit@tionex.de>
date	Sat, 14 Mar 2009 18:23:29 +0100
parents
children

rev	line source
12 bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	1 /*******************************************************************************
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	2 * Copyright (c) 2004, 2007 IBM Corporation and others.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	3 * All rights reserved. This program and the accompanying materials
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	4 * are made available under the terms of the Eclipse Public License v1.0
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	5 * which accompanies this distribution, and is available at
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	6 * http://www.eclipse.org/legal/epl-v10.html
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	7 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	8 * Contributors:
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	9 * IBM Corporation - initial API and implementation
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	10 * Port to the D programming language:
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	11 * Frank Benoit <benoit@tionex.de>
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	12 *******************************************************************************/
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	13 module org.eclipse.jface.util.Geometry;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	14
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	15 import org.eclipse.swt.SWT;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	16 import org.eclipse.swt.graphics.Point;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	17 import org.eclipse.swt.graphics.Rectangle;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	18 import org.eclipse.swt.widgets.Control;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	19
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	20 import java.lang.all;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	21 import java.util.Set;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	22
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	23 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	24 * Contains static methods for performing simple geometric operations
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	25 * on the SWT geometry classes.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	26 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	27 * @since 3.0
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	28 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	29 public class Geometry {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	30
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	31 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	32 * Prevent this class from being instantiated.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	33 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	34 * @since 3.0
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	35 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	36 private this() {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	37 //This is not instantiated
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	38 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	39
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	40 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	41 * Returns the square of the distance between two points.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	42 * <p>This is preferred over the real distance when searching
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	43 * for the closest point, since it avoids square roots.</p>
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	44 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	45 * @param p1 first endpoint
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	46 * @param p2 second endpoint
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	47 * @return the square of the distance between the two points
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	48 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	49 * @since 3.0
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	50 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	51 public static int distanceSquared(Point p1, Point p2) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	52 int term1 = p1.x - p2.x;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	53 int term2 = p1.y - p2.y;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	54 return term1 * term1 + term2 * term2;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	55 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	56
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	57 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	58 * Returns the magnitude of the given 2d vector (represented as a Point)
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	59 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	60 * @param p point representing the 2d vector whose magnitude is being computed
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	61 * @return the magnitude of the given 2d vector
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	62 * @since 3.0
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	63 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	64 public static double magnitude(Point p) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	65 return Math.sqrt( cast(real) magnitudeSquared(p));
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	66 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	67
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	68 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	69 * Returns the square of the magnitude of the given 2-space vector (represented
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	70 * using a point)
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	71 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	72 * @param p the point whose magnitude is being computed
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	73 * @return the square of the magnitude of the given vector
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	74 * @since 3.0
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	75 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	76 public static int magnitudeSquared(Point p) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	77 return p.x * p.x + p.y * p.y;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	78 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	79
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	80 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	81 * Returns the dot product of the given vectors (expressed as Points)
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	82 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	83 * @param p1 the first vector
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	84 * @param p2 the second vector
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	85 * @return the dot product of the two vectors
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	86 * @since 3.0
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	87 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	88 public static int dotProduct(Point p1, Point p2) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	89 return p1.x * p2.x + p1.y * p2.y;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	90 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	91
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	92 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	93 * Returns a new point whose coordinates are the minimum of the coordinates of the
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	94 * given points
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	95 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	96 * @param p1 a Point
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	97 * @param p2 a Point
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	98 * @return a new point whose coordinates are the minimum of the coordinates of the
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	99 * given points
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	100 * @since 3.0
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	101 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	102 public static Point min(Point p1, Point p2) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	103 return new Point(Math.min(p1.x, p2.x), Math.min(p1.y, p2.y));
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	104 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	105
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	106 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	107 * Returns a new point whose coordinates are the maximum of the coordinates
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	108 * of the given points
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	109 * @param p1 a Point
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	110 * @param p2 a Point
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	111 * @return point a new point whose coordinates are the maximum of the coordinates
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	112 * @since 3.0
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	113 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	114 public static Point max(Point p1, Point p2) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	115 return new Point(Math.max(p1.x, p2.x), Math.max(p1.y, p2.y));
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	116 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	117
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	118 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	119 * Returns a vector in the given direction with the given
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	120 * magnitude. Directions are given using SWT direction constants, and
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	121 * the resulting vector is in the screen's coordinate system. That is,
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	122 * the vector (0, 1) is down and the vector (1, 0) is right.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	123 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	124 * @param distance magnitude of the vector
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	125 * @param direction one of SWT.TOP, SWT.BOTTOM, SWT.LEFT, or SWT.RIGHT
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	126 * @return a point representing a vector in the given direction with the given magnitude
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	127 * @since 3.0
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	128 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	129 public static Point getDirectionVector(int distance, int direction) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	130 switch (direction) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	131 case SWT.TOP:
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	132 return new Point(0, -distance);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	133 case SWT.BOTTOM:
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	134 return new Point(0, distance);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	135 case SWT.LEFT:
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	136 return new Point(-distance, 0);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	137 case SWT.RIGHT:
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	138 return new Point(distance, 0);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	139 default:
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	140 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	141
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	142 return new Point(0, 0);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	143 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	144
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	145 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	146 * Returns the point in the center of the given rectangle.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	147 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	148 * @param rect rectangle being computed
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	149 * @return a Point at the center of the given rectangle.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	150 * @since 3.0
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	151 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	152 public static Point centerPoint(Rectangle rect) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	153 return new Point(rect.x + rect.width / 2, rect.y + rect.height / 2);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	154 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	155
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	156 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	157 * Returns a copy of the given point
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	158 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	159 * @param toCopy point to copy
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	160 * @return a copy of the given point
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	161 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	162 public static Point copy(Point toCopy) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	163 return new Point(toCopy.x, toCopy.y);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	164 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	165
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	166 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	167 * Sets result equal to toCopy
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	168 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	169 * @param result object that will be modified
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	170 * @param toCopy object that will be copied
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	171 * @since 3.1
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	172 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	173 public static void set(Point result, Point toCopy) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	174 result.x = toCopy.x;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	175 result.y = toCopy.y;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	176 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	177
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	178 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	179 * Sets result equal to toCopy
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	180 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	181 * @param result object that will be modified
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	182 * @param toCopy object that will be copied
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	183 * @since 3.1
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	184 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	185 public static void set(Rectangle result, Rectangle toCopy) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	186 result.x = toCopy.x;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	187 result.y = toCopy.y;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	188 result.width = toCopy.width;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	189 result.height = toCopy.height;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	190 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	191
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	192 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	193 * <p>Returns a new difference Rectangle whose x, y, width, and height are equal to the difference of the corresponding
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	194 * attributes from the given rectangles</p>
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	195 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	196 * <p></p>
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	197 * <b>Example: Compute the margins for a given Composite, and apply those same margins to a new GridLayout</b>
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	198 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	199 * <code><pre>
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	200 * // Compute the client area, in the coordinate system of the input composite's parent
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	201 * Rectangle clientArea = Display.getCurrent().map(inputComposite,
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	202 * inputComposite.getParent(), inputComposite.getClientArea());
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	203 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	204 * // Compute the margins for a given Composite by subtracting the client area from the composite's bounds
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	205 * Rectangle margins = Geometry.subtract(inputComposite.getBounds(), clientArea);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	206 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	207 * // Now apply these margins to a new GridLayout
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	208 * GridLayout layout = GridLayoutFactory.fillDefaults().margins(margins).create();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	209 * </pre></code>
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	210 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	211 * @param rect1 first rectangle
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	212 * @param rect2 rectangle to subtract
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	213 * @return the difference between the two rectangles (computed as rect1 - rect2)
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	214 * @since 3.3
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	215 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	216 public static Rectangle subtract(Rectangle rect1, Rectangle rect2) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	217 return new Rectangle(rect1.x - rect2.x, rect1.y - rect2.y, rect1.width - rect2.width, rect1.height - rect2.height);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	218 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	219
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	220 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	221 * <p>Returns a new Rectangle whose x, y, width, and height is the sum of the x, y, width, and height values of
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	222 * both rectangles respectively.</p>
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	223 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	224 * @param rect1 first rectangle to add
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	225 * @param rect2 second rectangle to add
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	226 * @return a new rectangle whose x, y, height, and width attributes are the sum of the corresponding attributes from
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	227 * the arguments.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	228 * @since 3.3
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	229 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	230 public static Rectangle add(Rectangle rect1, Rectangle rect2) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	231 return new Rectangle(rect1.x + rect2.x, rect1.y + rect2.y,
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	232 rect1.width + rect2.width, rect1.height + rect2.height);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	233 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	234
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	235 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	236 * Adds two points as 2d vectors. Returns a new point whose coordinates are
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	237 * the sum of the original two points.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	238 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	239 * @param point1 the first point (not null)
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	240 * @param point2 the second point (not null)
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	241 * @return a new point whose coordinates are the sum of the given points
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	242 * @since 3.0
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	243 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	244 public static Point add(Point point1, Point point2) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	245 return new Point(point1.x + point2.x, point1.y + point2.y);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	246 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	247
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	248 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	249 * Divides both coordinates of the given point by the given scalar.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	250 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	251 * @since 3.1
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	252 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	253 * @param toDivide point to divide
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	254 * @param scalar denominator
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	255 * @return a new Point whose coordinates are equal to the original point divided by the scalar
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	256 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	257 public static Point divide(Point toDivide, int scalar) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	258 return new Point(toDivide.x / scalar, toDivide.y / scalar);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	259 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	260
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	261
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	262 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	263 * Performs vector subtraction on two points. Returns a new point equal to
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	264 * (point1 - point2).
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	265 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	266 * @param point1 initial point
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	267 * @param point2 vector to subtract
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	268 * @return the difference (point1 - point2)
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	269 * @since 3.0
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	270 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	271 public static Point subtract(Point point1, Point point2) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	272 return new Point(point1.x - point2.x, point1.y - point2.y);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	273 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	274
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	275 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	276 * Swaps the X and Y coordinates of the given point.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	277 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	278 * @param toFlip modifies this point
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	279 * @since 3.1
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	280 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	281 public static void flipXY(Point toFlip) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	282 int temp = toFlip.x;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	283 toFlip.x = toFlip.y;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	284 toFlip.y = temp;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	285 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	286
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	287 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	288 * Swaps the X and Y coordinates of the given rectangle, along with the height and width.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	289 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	290 * @param toFlip modifies this rectangle
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	291 * @since 3.1
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	292 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	293 public static void flipXY(Rectangle toFlip) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	294 int temp = toFlip.x;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	295 toFlip.x = toFlip.y;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	296 toFlip.y = temp;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	297
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	298 temp = toFlip.width;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	299 toFlip.width = toFlip.height;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	300 toFlip.height = temp;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	301 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	302
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	303 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	304 * Returns the height or width of the given rectangle.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	305 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	306 * @param toMeasure rectangle to measure
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	307 * @param width returns the width if true, and the height if false
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	308 * @return the width or height of the given rectangle
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	309 * @since 3.0
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	310 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	311 public static int getDimension(Rectangle toMeasure, bool width) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	312 if (width) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	313 return toMeasure.width;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	314 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	315 return toMeasure.height;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	316 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	317
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	318 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	319 * Returns the x or y coordinates of the given point.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	320 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	321 * @param toMeasure point being measured
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	322 * @param width if true, returns x. Otherwise, returns y.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	323 * @return the x or y coordinate
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	324 * @since 3.1
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	325 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	326 public static int getCoordinate(Point toMeasure, bool width) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	327 return width ? toMeasure.x : toMeasure.y;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	328 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	329
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	330 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	331 * Returns the x or y coordinates of the given rectangle.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	332 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	333 * @param toMeasure rectangle being measured
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	334 * @param width if true, returns x. Otherwise, returns y.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	335 * @return the x or y coordinate
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	336 * @since 3.1
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	337 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	338 public static int getCoordinate(Rectangle toMeasure, bool width) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	339 return width ? toMeasure.x : toMeasure.y;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	340 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	341
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	342 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	343 * Sets one dimension of the given rectangle. Modifies the given rectangle.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	344 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	345 * @param toSet rectangle to modify
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	346 * @param width if true, the width is modified. If false, the height is modified.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	347 * @param newCoordinate new value of the width or height
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	348 * @since 3.1
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	349 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	350 public static void setDimension(Rectangle toSet, bool width, int newCoordinate) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	351 if (width) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	352 toSet.width = newCoordinate;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	353 } else {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	354 toSet.height = newCoordinate;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	355 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	356 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	357
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	358 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	359 * Sets one coordinate of the given rectangle. Modifies the given rectangle.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	360 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	361 * @param toSet rectangle to modify
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	362 * @param width if true, the x coordinate is modified. If false, the y coordinate is modified.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	363 * @param newCoordinate new value of the x or y coordinates
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	364 * @since 3.1
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	365 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	366 public static void setCoordinate(Rectangle toSet, bool width, int newCoordinate) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	367 if (width) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	368 toSet.x = newCoordinate;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	369 } else {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	370 toSet.y = newCoordinate;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	371 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	372 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	373
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	374 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	375 * Sets one coordinate of the given point. Modifies the given point.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	376 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	377 * @param toSet point to modify
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	378 * @param width if true, the x coordinate is modified. If false, the y coordinate is modified.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	379 * @param newCoordinate new value of the x or y coordinates
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	380 * @since 3.1
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	381 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	382 public static void setCoordinate(Point toSet, bool width, int newCoordinate) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	383 if (width) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	384 toSet.x = newCoordinate;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	385 } else {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	386 toSet.y = newCoordinate;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	387 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	388 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	389
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	390 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	391 * Returns the distance of the given point from a particular side of the given rectangle.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	392 * Returns negative values for points outside the rectangle.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	393 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	394 * @param rectangle a bounding rectangle
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	395 * @param testPoint a point to test
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	396 * @param edgeOfInterest side of the rectangle to test against
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	397 * @return the distance of the given point from the given edge of the rectangle
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	398 * @since 3.0
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	399 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	400 public static int getDistanceFromEdge(Rectangle rectangle, Point testPoint,
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	401 int edgeOfInterest) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	402 switch (edgeOfInterest) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	403 case SWT.TOP:
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	404 return testPoint.y - rectangle.y;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	405 case SWT.BOTTOM:
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	406 return rectangle.y + rectangle.height - testPoint.y;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	407 case SWT.LEFT:
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	408 return testPoint.x - rectangle.x;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	409 case SWT.RIGHT:
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	410 return rectangle.x + rectangle.width - testPoint.x;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	411 default:
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	412 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	413
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	414 return 0;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	415 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	416
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	417 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	418 * Extrudes the given edge inward by the given distance. That is, if one side of the rectangle
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	419 * was sliced off with a given thickness, this returns the rectangle that forms the slice. Note
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	420 * that the returned rectangle will be inside the given rectangle if size > 0.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	421 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	422 * @param toExtrude the rectangle to extrude. The resulting rectangle will share three sides
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	423 * with this rectangle.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	424 * @param size distance to extrude. A negative size will extrude outwards (that is, the resulting
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	425 * rectangle will overlap the original iff this is positive).
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	426 * @param orientation the side to extrude. One of SWT.LEFT, SWT.RIGHT, SWT.TOP, or SWT.BOTTOM. The
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	427 * resulting rectangle will always share this side with the original rectangle.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	428 * @return a rectangle formed by extruding the given side of the rectangle by the given distance.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	429 * @since 3.0
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	430 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	431 public static Rectangle getExtrudedEdge(Rectangle toExtrude, int size,
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	432 int orientation) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	433 Rectangle bounds = new Rectangle(toExtrude.x, toExtrude.y,
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	434 toExtrude.width, toExtrude.height);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	435
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	436 if (!isHorizontal(orientation)) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	437 bounds.width = size;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	438 } else {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	439 bounds.height = size;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	440 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	441
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	442 switch (orientation) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	443 case SWT.RIGHT:
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	444 bounds.x = toExtrude.x + toExtrude.width - bounds.width;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	445 break;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	446 case SWT.BOTTOM:
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	447 bounds.y = toExtrude.y + toExtrude.height - bounds.height;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	448 break;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	449 default:
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	450 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	451
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	452 normalize(bounds);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	453
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	454 return bounds;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	455 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	456
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	457 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	458 * Returns the opposite of the given direction. That is, returns SWT.LEFT if
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	459 * given SWT.RIGHT and visa-versa.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	460 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	461 * @param swtDirectionConstant one of SWT.LEFT, SWT.RIGHT, SWT.TOP, or SWT.BOTTOM
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	462 * @return one of SWT.LEFT, SWT.RIGHT, SWT.TOP, or SWT.BOTTOM
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	463 * @since 3.0
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	464 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	465 public static int getOppositeSide(int swtDirectionConstant) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	466 switch (swtDirectionConstant) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	467 case SWT.TOP:
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	468 return SWT.BOTTOM;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	469 case SWT.BOTTOM:
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	470 return SWT.TOP;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	471 case SWT.LEFT:
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	472 return SWT.RIGHT;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	473 case SWT.RIGHT:
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	474 return SWT.LEFT;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	475 default:
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	476 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	477
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	478 return swtDirectionConstant;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	479 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	480
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	481 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	482 * Converts the given bool into an SWT orientation constant.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	483 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	484 * @param horizontal if true, returns SWT.HORIZONTAL. If false, returns SWT.VERTICAL
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	485 * @return SWT.HORIZONTAL or SWT.VERTICAL.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	486 * @since 3.0
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	487 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	488 public static int getSwtHorizontalOrVerticalConstant(bool horizontal) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	489 if (horizontal) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	490 return SWT.HORIZONTAL;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	491 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	492 return SWT.VERTICAL;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	493 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	494
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	495 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	496 * Returns true iff the given SWT side constant corresponds to a horizontal side
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	497 * of a rectangle. That is, returns true for the top and bottom but false for the
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	498 * left and right.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	499 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	500 * @param swtSideConstant one of SWT.TOP, SWT.BOTTOM, SWT.LEFT, or SWT.RIGHT

12

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1 /*******************************************************************************

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4 * are made available under the terms of the Eclipse Public License v1.0

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5 * which accompanies this distribution, and is available at

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6 * http://www.eclipse.org/legal/epl-v10.html

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7 *

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8 * Contributors:

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9 * IBM Corporation - initial API and implementation

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10 * Port to the D programming language:

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11 * Frank Benoit <benoit@tionex.de>

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12 *******************************************************************************/

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13 module org.eclipse.jface.util.Geometry;

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14

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15 import org.eclipse.swt.SWT;

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16 import org.eclipse.swt.graphics.Point;

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17 import org.eclipse.swt.graphics.Rectangle;

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18 import org.eclipse.swt.widgets.Control;

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19

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20 import java.lang.all;

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21 import java.util.Set;

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22

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23 /**

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24 * Contains static methods for performing simple geometric operations

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25 * on the SWT geometry classes.

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26 *

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27 * @since 3.0

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28 */

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29 public class Geometry {

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30

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31 /**

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32 * Prevent this class from being instantiated.

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33 *

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34 * @since 3.0

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35 */

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36 private this() {

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37 //This is not instantiated

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38 }

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39

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40 /**

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41 * Returns the square of the distance between two points.

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42 * This is preferred over the real distance when searching

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43 * for the closest point, since it avoids square roots.

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44 *

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45 * @param p1 first endpoint

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46 * @param p2 second endpoint

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47 * @return the square of the distance between the two points

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48 *

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49 * @since 3.0

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50 */

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51 public static int distanceSquared(Point p1, Point p2) {

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52 int term1 = p1.x - p2.x;

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53 int term2 = p1.y - p2.y;

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54 return term1 * term1 + term2 * term2;

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55 }

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56

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57 /**

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58 * Returns the magnitude of the given 2d vector (represented as a Point)

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59 *

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60 * @param p point representing the 2d vector whose magnitude is being computed

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61 * @return the magnitude of the given 2d vector

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62 * @since 3.0

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63 */

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64 public static double magnitude(Point p) {

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65 return Math.sqrt( cast(real) magnitudeSquared(p));

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66 }

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67

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68 /**

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69 * Returns the square of the magnitude of the given 2-space vector (represented

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70 * using a point)

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71 *

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72 * @param p the point whose magnitude is being computed

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73 * @return the square of the magnitude of the given vector

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74 * @since 3.0

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75 */

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76 public static int magnitudeSquared(Point p) {

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77 return p.x * p.x + p.y * p.y;

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78 }

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79

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80 /**

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81 * Returns the dot product of the given vectors (expressed as Points)

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82 *

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83 * @param p1 the first vector

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84 * @param p2 the second vector

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85 * @return the dot product of the two vectors

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86 * @since 3.0

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87 */

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88 public static int dotProduct(Point p1, Point p2) {

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89 return p1.x * p2.x + p1.y * p2.y;

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90 }

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91

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92 /**

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93 * Returns a new point whose coordinates are the minimum of the coordinates of the

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94 * given points

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95 *

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96 * @param p1 a Point

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97 * @param p2 a Point

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98 * @return a new point whose coordinates are the minimum of the coordinates of the

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99 * given points

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100 * @since 3.0

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101 */

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102 public static Point min(Point p1, Point p2) {

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103 return new Point(Math.min(p1.x, p2.x), Math.min(p1.y, p2.y));

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104 }

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105

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106 /**

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107 * Returns a new point whose coordinates are the maximum of the coordinates

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108 * of the given points

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109 * @param p1 a Point

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110 * @param p2 a Point

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111 * @return point a new point whose coordinates are the maximum of the coordinates

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112 * @since 3.0

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113 */

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114 public static Point max(Point p1, Point p2) {

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115 return new Point(Math.max(p1.x, p2.x), Math.max(p1.y, p2.y));

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116 }

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117

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118 /**

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119 * Returns a vector in the given direction with the given

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120 * magnitude. Directions are given using SWT direction constants, and

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121 * the resulting vector is in the screen's coordinate system. That is,

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122 * the vector (0, 1) is down and the vector (1, 0) is right.

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123 *

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124 * @param distance magnitude of the vector

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125 * @param direction one of SWT.TOP, SWT.BOTTOM, SWT.LEFT, or SWT.RIGHT

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126 * @return a point representing a vector in the given direction with the given magnitude

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127 * @since 3.0

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128 */

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129 public static Point getDirectionVector(int distance, int direction) {

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130 switch (direction) {

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131 case SWT.TOP:

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132 return new Point(0, -distance);

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133 case SWT.BOTTOM:

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134 return new Point(0, distance);

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135 case SWT.LEFT:

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136 return new Point(-distance, 0);

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137 case SWT.RIGHT:

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138 return new Point(distance, 0);

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139 default:

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140 }

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141

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142 return new Point(0, 0);

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143 }

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144

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145 /**

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146 * Returns the point in the center of the given rectangle.

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147 *

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148 * @param rect rectangle being computed

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149 * @return a Point at the center of the given rectangle.

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150 * @since 3.0

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151 */

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152 public static Point centerPoint(Rectangle rect) {

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153 return new Point(rect.x + rect.width / 2, rect.y + rect.height / 2);

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154 }

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155

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156 /**

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157 * Returns a copy of the given point

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158 *

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159 * @param toCopy point to copy

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160 * @return a copy of the given point

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161 */

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162 public static Point copy(Point toCopy) {

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163 return new Point(toCopy.x, toCopy.y);

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164 }

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165

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166 /**

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167 * Sets result equal to toCopy

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168 *

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169 * @param result object that will be modified

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170 * @param toCopy object that will be copied

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171 * @since 3.1

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172 */

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173 public static void set(Point result, Point toCopy) {

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174 result.x = toCopy.x;

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175 result.y = toCopy.y;

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176 }

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177

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178 /**

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179 * Sets result equal to toCopy

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180 *

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181 * @param result object that will be modified

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182 * @param toCopy object that will be copied

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183 * @since 3.1

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184 */

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185 public static void set(Rectangle result, Rectangle toCopy) {

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186 result.x = toCopy.x;

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187 result.y = toCopy.y;

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188 result.width = toCopy.width;

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189 result.height = toCopy.height;

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190 }

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191

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192 /**

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193 * Returns a new difference Rectangle whose x, y, width, and height are equal to the difference of the corresponding

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194 * attributes from the given rectangles

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195 *

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196 *

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197 * Example: Compute the margins for a given Composite, and apply those same margins to a new GridLayout

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198 *

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199 * <code><pre>

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200 * // Compute the client area, in the coordinate system of the input composite's parent

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201 * Rectangle clientArea = Display.getCurrent().map(inputComposite,

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202 * inputComposite.getParent(), inputComposite.getClientArea());

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203 *

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204 * // Compute the margins for a given Composite by subtracting the client area from the composite's bounds

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205 * Rectangle margins = Geometry.subtract(inputComposite.getBounds(), clientArea);

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206 *

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207 * // Now apply these margins to a new GridLayout

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208 * GridLayout layout = GridLayoutFactory.fillDefaults().margins(margins).create();

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209 * </pre></code>

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210 *

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211 * @param rect1 first rectangle

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212 * @param rect2 rectangle to subtract

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213 * @return the difference between the two rectangles (computed as rect1 - rect2)

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214 * @since 3.3

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215 */

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216 public static Rectangle subtract(Rectangle rect1, Rectangle rect2) {

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217 return new Rectangle(rect1.x - rect2.x, rect1.y - rect2.y, rect1.width - rect2.width, rect1.height - rect2.height);

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218 }

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219

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220 /**

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221 * Returns a new Rectangle whose x, y, width, and height is the sum of the x, y, width, and height values of

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222 * both rectangles respectively.

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223 *

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224 * @param rect1 first rectangle to add

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225 * @param rect2 second rectangle to add

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226 * @return a new rectangle whose x, y, height, and width attributes are the sum of the corresponding attributes from

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227 * the arguments.

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228 * @since 3.3

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229 */

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230 public static Rectangle add(Rectangle rect1, Rectangle rect2) {

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231 return new Rectangle(rect1.x + rect2.x, rect1.y + rect2.y,

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232 rect1.width + rect2.width, rect1.height + rect2.height);

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233 }

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234

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235 /**

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236 * Adds two points as 2d vectors. Returns a new point whose coordinates are

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237 * the sum of the original two points.

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238 *

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239 * @param point1 the first point (not null)

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240 * @param point2 the second point (not null)

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241 * @return a new point whose coordinates are the sum of the given points

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242 * @since 3.0

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243 */

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244 public static Point add(Point point1, Point point2) {

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245 return new Point(point1.x + point2.x, point1.y + point2.y);

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246 }

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247

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248 /**

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249 * Divides both coordinates of the given point by the given scalar.

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250 *

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251 * @since 3.1

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252 *

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253 * @param toDivide point to divide

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254 * @param scalar denominator

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255 * @return a new Point whose coordinates are equal to the original point divided by the scalar

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256 */

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257 public static Point divide(Point toDivide, int scalar) {

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258 return new Point(toDivide.x / scalar, toDivide.y / scalar);

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259 }

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260

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261

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262 /**

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263 * Performs vector subtraction on two points. Returns a new point equal to

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264 * (point1 - point2).

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265 *

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266 * @param point1 initial point

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267 * @param point2 vector to subtract

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268 * @return the difference (point1 - point2)

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269 * @since 3.0

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270 */

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271 public static Point subtract(Point point1, Point point2) {

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272 return new Point(point1.x - point2.x, point1.y - point2.y);

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273 }

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274

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275 /**

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276 * Swaps the X and Y coordinates of the given point.

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277 *

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278 * @param toFlip modifies this point

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279 * @since 3.1

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280 */

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281 public static void flipXY(Point toFlip) {

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282 int temp = toFlip.x;

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283 toFlip.x = toFlip.y;

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284 toFlip.y = temp;

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285 }

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286

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287 /**

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288 * Swaps the X and Y coordinates of the given rectangle, along with the height and width.

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289 *

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290 * @param toFlip modifies this rectangle

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291 * @since 3.1

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292 */

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293 public static void flipXY(Rectangle toFlip) {

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294 int temp = toFlip.x;

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295 toFlip.x = toFlip.y;

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296 toFlip.y = temp;

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297

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298 temp = toFlip.width;

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299 toFlip.width = toFlip.height;

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300 toFlip.height = temp;

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301 }

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302

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303 /**

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304 * Returns the height or width of the given rectangle.

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305 *

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306 * @param toMeasure rectangle to measure

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307 * @param width returns the width if true, and the height if false

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308 * @return the width or height of the given rectangle

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309 * @since 3.0

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310 */

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311 public static int getDimension(Rectangle toMeasure, bool width) {

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312 if (width) {

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313 return toMeasure.width;

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314 }

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315 return toMeasure.height;

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316 }

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317

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318 /**

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319 * Returns the x or y coordinates of the given point.

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320 *

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321 * @param toMeasure point being measured

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322 * @param width if true, returns x. Otherwise, returns y.

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323 * @return the x or y coordinate

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324 * @since 3.1

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325 */

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326 public static int getCoordinate(Point toMeasure, bool width) {

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327 return width ? toMeasure.x : toMeasure.y;

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328 }

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329

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330 /**

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331 * Returns the x or y coordinates of the given rectangle.

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332 *

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333 * @param toMeasure rectangle being measured

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334 * @param width if true, returns x. Otherwise, returns y.

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335 * @return the x or y coordinate

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336 * @since 3.1

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337 */

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338 public static int getCoordinate(Rectangle toMeasure, bool width) {

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339 return width ? toMeasure.x : toMeasure.y;

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340 }

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341

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342 /**

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343 * Sets one dimension of the given rectangle. Modifies the given rectangle.

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344 *

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345 * @param toSet rectangle to modify

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346 * @param width if true, the width is modified. If false, the height is modified.

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347 * @param newCoordinate new value of the width or height

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348 * @since 3.1

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349 */

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350 public static void setDimension(Rectangle toSet, bool width, int newCoordinate) {

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351 if (width) {

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352 toSet.width = newCoordinate;

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353 } else {

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354 toSet.height = newCoordinate;

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355 }

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356 }

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357

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358 /**

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359 * Sets one coordinate of the given rectangle. Modifies the given rectangle.

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360 *

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361 * @param toSet rectangle to modify

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362 * @param width if true, the x coordinate is modified. If false, the y coordinate is modified.

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363 * @param newCoordinate new value of the x or y coordinates

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364 * @since 3.1

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365 */

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366 public static void setCoordinate(Rectangle toSet, bool width, int newCoordinate) {

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367 if (width) {

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368 toSet.x = newCoordinate;

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369 } else {

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370 toSet.y = newCoordinate;

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371 }

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372 }

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373

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374 /**

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375 * Sets one coordinate of the given point. Modifies the given point.

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376 *

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377 * @param toSet point to modify

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378 * @param width if true, the x coordinate is modified. If false, the y coordinate is modified.

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379 * @param newCoordinate new value of the x or y coordinates

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380 * @since 3.1

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381 */

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382 public static void setCoordinate(Point toSet, bool width, int newCoordinate) {

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383 if (width) {

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384 toSet.x = newCoordinate;

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385 } else {

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386 toSet.y = newCoordinate;

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387 }

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388 }

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389

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390 /**

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391 * Returns the distance of the given point from a particular side of the given rectangle.

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392 * Returns negative values for points outside the rectangle.

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393 *

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394 * @param rectangle a bounding rectangle

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395 * @param testPoint a point to test

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396 * @param edgeOfInterest side of the rectangle to test against

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397 * @return the distance of the given point from the given edge of the rectangle

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398 * @since 3.0

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399 */

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400 public static int getDistanceFromEdge(Rectangle rectangle, Point testPoint,

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401 int edgeOfInterest) {

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402 switch (edgeOfInterest) {

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403 case SWT.TOP:

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404 return testPoint.y - rectangle.y;

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405 case SWT.BOTTOM:

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406 return rectangle.y + rectangle.height - testPoint.y;

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407 case SWT.LEFT:

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408 return testPoint.x - rectangle.x;

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409 case SWT.RIGHT:

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410 return rectangle.x + rectangle.width - testPoint.x;

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411 default:

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412 }

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413

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414 return 0;

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415 }

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416

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417 /**

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418 * Extrudes the given edge inward by the given distance. That is, if one side of the rectangle

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419 * was sliced off with a given thickness, this returns the rectangle that forms the slice. Note

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420 * that the returned rectangle will be inside the given rectangle if size > 0.

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421 *

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422 * @param toExtrude the rectangle to extrude. The resulting rectangle will share three sides

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423 * with this rectangle.

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424 * @param size distance to extrude. A negative size will extrude outwards (that is, the resulting

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425 * rectangle will overlap the original iff this is positive).

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426 * @param orientation the side to extrude. One of SWT.LEFT, SWT.RIGHT, SWT.TOP, or SWT.BOTTOM. The

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427 * resulting rectangle will always share this side with the original rectangle.

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428 * @return a rectangle formed by extruding the given side of the rectangle by the given distance.

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429 * @since 3.0

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430 */

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431 public static Rectangle getExtrudedEdge(Rectangle toExtrude, int size,

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432 int orientation) {

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433 Rectangle bounds = new Rectangle(toExtrude.x, toExtrude.y,

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434 toExtrude.width, toExtrude.height);

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435

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436 if (!isHorizontal(orientation)) {

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437 bounds.width = size;

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438 } else {

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439 bounds.height = size;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

440 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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parents:

diff changeset

441

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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parents:

diff changeset

442 switch (orientation) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

443 case SWT.RIGHT:

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

444 bounds.x = toExtrude.x + toExtrude.width - bounds.width;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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parents:

diff changeset

445 break;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

446 case SWT.BOTTOM:

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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447 bounds.y = toExtrude.y + toExtrude.height - bounds.height;

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parents:

diff changeset

448 break;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

449 default:

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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parents:

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450 }

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parents:

diff changeset

451

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diff changeset

452 normalize(bounds);

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diff changeset

453

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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454 return bounds;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

455 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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parents:

diff changeset

456

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

457 /**

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parents:

diff changeset

458 * Returns the opposite of the given direction. That is, returns SWT.LEFT if

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parents:

diff changeset

459 * given SWT.RIGHT and visa-versa.

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parents:

diff changeset

460 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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parents:

diff changeset

461 * @param swtDirectionConstant one of SWT.LEFT, SWT.RIGHT, SWT.TOP, or SWT.BOTTOM

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parents:

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462 * @return one of SWT.LEFT, SWT.RIGHT, SWT.TOP, or SWT.BOTTOM

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parents:

diff changeset

463 * @since 3.0

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

464 */

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diff changeset

465 public static int getOppositeSide(int swtDirectionConstant) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

466 switch (swtDirectionConstant) {

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parents:

diff changeset

467 case SWT.TOP:

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diff changeset

468 return SWT.BOTTOM;

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parents:

diff changeset

469 case SWT.BOTTOM:

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diff changeset

470 return SWT.TOP;

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parents:

diff changeset

471 case SWT.LEFT:

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parents:

diff changeset

472 return SWT.RIGHT;

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diff changeset

473 case SWT.RIGHT:

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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474 return SWT.LEFT;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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475 default:

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476 }

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477

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478 return swtDirectionConstant;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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479 }

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parents:

diff changeset

480

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parents:

diff changeset

481 /**

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Frank Benoit <benoit@tionex.de>

parents:

diff changeset

482 * Converts the given bool into an SWT orientation constant.

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parents:

diff changeset

483 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

484 * @param horizontal if true, returns SWT.HORIZONTAL. If false, returns SWT.VERTICAL

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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485 * @return SWT.HORIZONTAL or SWT.VERTICAL.

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parents:

diff changeset

486 * @since 3.0

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diff changeset

487 */

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parents:

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488 public static int getSwtHorizontalOrVerticalConstant(bool horizontal) {

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diff changeset

489 if (horizontal) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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490 return SWT.HORIZONTAL;

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491 }

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diff changeset

492 return SWT.VERTICAL;

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493 }

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Frank Benoit <benoit@tionex.de>

parents:

diff changeset

494

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Frank Benoit <benoit@tionex.de>

parents:

diff changeset

495 /**

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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parents:

diff changeset

496 * Returns true iff the given SWT side constant corresponds to a horizontal side

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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parents:

diff changeset

497 * of a rectangle. That is, returns true for the top and bottom but false for the

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parents:

diff changeset

498 * left and right.

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Frank Benoit <benoit@tionex.de>

parents:

diff changeset

499 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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parents:

diff changeset

500 * @param swtSideConstant one of SWT.TOP, SWT.BOTTOM, SWT.LEFT, or SWT.RIGHT

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

501 * @return true iff the given side is horizontal.

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

502 * @since 3.0

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

503 */

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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parents:

diff changeset

504 public static bool isHorizontal(int swtSideConstant) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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parents:

diff changeset

505 return !(swtSideConstant is SWT.LEFT || swtSideConstant is SWT.RIGHT);

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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parents:

diff changeset

506 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

507

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

508 /**

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

509 * Moves the given rectangle by the given delta.

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

510 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

511 * @param rect rectangle to move (will be modified)

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

512 * @param delta direction vector to move the rectangle by

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

513 * @since 3.0

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

514 */

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

515 public static void moveRectangle(Rectangle rect, Point delta) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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parents:

diff changeset

516 rect.x += delta.x;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

517 rect.y += delta.y;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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parents:

diff changeset

518 }

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Frank Benoit <benoit@tionex.de>

parents:

diff changeset

519

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

520 /**

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

521 * Moves each edge of the given rectangle outward by the given amount. Negative values

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

522 * cause the rectangle to contract. Does not allow the rectangle's width or height to be

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

523 * reduced below zero.

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

524 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

525 * @param rect normalized rectangle to modify

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

526 * @param differenceRect difference rectangle to be added to rect

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

527 * @since 3.3

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

528 */

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

529 public static void expand(Rectangle rect, Rectangle differenceRect) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

530 rect.x += differenceRect.x;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

531 rect.y += differenceRect.y;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

532 rect.height = Math.max(0, rect.height + differenceRect.height);

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

533 rect.width = Math.max(0, rect.width + differenceRect.width);

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

534 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

535

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

536 /**

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

537 * Returns a rectangle which, when added to another rectangle, will expand each side

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

538 * by the given number of units.

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

539 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

540 * This is commonly used to store margin sizes. For example:

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

541 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

542 * <code><pre>

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

543 * // Expands the left, right, top, and bottom

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

544 * // of the given control by 10, 5, 1, and 15 units respectively

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

545 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

546 * Rectangle margins = Geometry.createDifferenceRect(10,5,1,15);

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

547 * Rectangle bounds = someControl.getBounds();

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

548 * someControl.setBounds(Geometry.add(bounds, margins));

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

549 * </pre></code>

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

550 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

551 * @param left distance to expand the left side (negative values move the edge inward)

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

552 * @param right distance to expand the right side (negative values move the edge inward)

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

553 * @param top distance to expand the top (negative values move the edge inward)

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

554 * @param bottom distance to expand the bottom (negative values move the edge inward)

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

555 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

556 * @return a difference rectangle that, when added to another rectangle, will cause each

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

557 * side to expand by the given number of units

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

558 * @since 3.3

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

559 */

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

560 public static Rectangle createDiffRectangle(int left, int right, int top, int bottom) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

561 return new Rectangle(-left, -top, left + right, top + bottom);

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

562 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

563

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

564 /**

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

565 * Moves each edge of the given rectangle outward by the given amount. Negative values

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

566 * cause the rectangle to contract. Does not allow the rectangle's width or height to be

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

567 * reduced below zero.

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

568 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

569 * @param rect normalized rectangle to modify

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

570 * @param left distance to move the left edge outward (negative values move the edge inward)

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

571 * @param right distance to move the right edge outward (negative values move the edge inward)

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

572 * @param top distance to move the top edge outward (negative values move the edge inward)

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

573 * @param bottom distance to move the bottom edge outward (negative values move the edge inward)

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

574 * @since 3.1

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

575 */

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

576 public static void expand(Rectangle rect, int left, int right, int top, int bottom) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

577 rect.x -= left;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

578 rect.width = Math.max(0, rect.width + left + right);

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

579 rect.y -= top;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

580 rect.height = Math.max(0, rect.height + top + bottom);

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

581 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

582

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

583 /**

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

584 * Normalizes the given rectangle. That is, any rectangle with

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

585 * negative width or height becomes a rectangle with positive

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

586 * width or height that extends to the upper-left of the original

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

587 * rectangle.

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

588 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

589 * @param rect rectangle to modify

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

590 * @since 3.0

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

591 */

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

592 public static void normalize(Rectangle rect) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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parents:

diff changeset

593 if (rect.width < 0) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

594 rect.width = -rect.width;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

595 rect.x -= rect.width;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

596 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

597

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

598 if (rect.height < 0) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

599 rect.height = -rect.height;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

600 rect.y -= rect.height;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

601 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

602 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

603

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

604 /**

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

605 * Converts the given rectangle from display coordinates to the local coordinate system

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

606 * of the given object into display coordinates.

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

607 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

608 * @param coordinateSystem local coordinate system being converted to

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

609 * @param toConvert rectangle to convert

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

610 * @return a rectangle in control coordinates

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

611 * @since 3.0

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

612 */

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

613 public static Rectangle toControl(Control coordinateSystem,

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

614 Rectangle toConvert) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

615 return(coordinateSystem.getDisplay().map

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

616 (null,coordinateSystem,toConvert));

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

617 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

618

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

619 /**

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

620 * Converts the given rectangle from the local coordinate system of the given object

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

621 * into display coordinates.

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

622 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

623 * @param coordinateSystem local coordinate system being converted from

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

624 * @param toConvert rectangle to convert

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

625 * @return a rectangle in display coordinates

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

626 * @since 3.0

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

627 */

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

628 public static Rectangle toDisplay(Control coordinateSystem,

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

629 Rectangle toConvert) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

630 return(coordinateSystem.getDisplay().map

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

631 (coordinateSystem,null,toConvert));

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

632

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

633 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

634

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

635 /**

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

636 * Determines where the given point lies with respect to the given rectangle.

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

637 * Returns a combination of SWT.LEFT, SWT.RIGHT, SWT.TOP, and SWT.BOTTOM, combined

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

638 * with bitwise or (for example, returns SWT.TOP | SWT.LEFT if the point is to the

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

639 * upper-left of the rectangle). Returns 0 if the point lies within the rectangle.

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

640 * Positions are in screen coordinates (ie: a point is to the upper-left of the

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

641 * rectangle if its x and y coordinates are smaller than any point in the rectangle)

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

642 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

643 * @param boundary normalized boundary rectangle

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

644 * @param toTest point whose relative position to the rectangle is being computed

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

645 * @return one of SWT.LEFT | SWT.TOP, SWT.TOP, SWT.RIGHT | SWT.TOP, SWT.LEFT, 0,

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

646 * SWT.RIGHT, SWT.LEFT | SWT.BOTTOM, SWT.BOTTOM, SWT.RIGHT | SWT.BOTTOM

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

647 * @since 3.0

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

648 */

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

649 public static int getRelativePosition(Rectangle boundary, Point toTest) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

650 int result = 0;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

651

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

652 if (toTest.x < boundary.x) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

653 result |= SWT.LEFT;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

654 } else if (toTest.x >= boundary.x + boundary.width) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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parents:

diff changeset

655 result |= SWT.RIGHT;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

656 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

657

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

658 if (toTest.y < boundary.y) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

659 result |= SWT.TOP;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

660 } else if (toTest.y >= boundary.y + boundary.height) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

661 result |= SWT.BOTTOM;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

662 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

663

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

664 return result;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

665 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

666

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

667 /**

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

668 * Returns the distance from the point to the nearest edge of the given

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

669 * rectangle. Returns negative values if the point lies outside the rectangle.

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

670 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

671 * @param boundary rectangle to test

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

672 * @param toTest point to test

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

673 * @return the distance between the given point and the nearest edge of the rectangle.

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

674 * Returns positive values for points inside the rectangle and negative values for points

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

675 * outside the rectangle.

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

676 * @since 3.1

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

677 */

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

678 public static int getDistanceFrom(Rectangle boundary, Point toTest) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

679 int side = getClosestSide(boundary, toTest);

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

680 return getDistanceFromEdge(boundary, toTest, side);

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

681 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

682

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

683 /**

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

684 * Returns the edge of the given rectangle is closest to the given

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

685 * point.

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

686 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

687 * @param boundary rectangle to test

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

688 * @param toTest point to compare

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

689 * @return one of SWT.LEFT, SWT.RIGHT, SWT.TOP, or SWT.BOTTOM

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

690 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

691 * @since 3.0

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

692 */

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

693 public static int getClosestSide(Rectangle boundary, Point toTest) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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parents:

diff changeset

694 int[] sides = [ SWT.LEFT, SWT.RIGHT, SWT.TOP, SWT.BOTTOM ];

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

695

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

696 int closestSide = SWT.LEFT;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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parents:

diff changeset

697 int closestDistance = Integer.MAX_VALUE;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

698

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

699 for (int idx = 0; idx < sides.length; idx++) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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parents:

diff changeset

700 int side = sides[idx];

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

701

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

702 int distance = getDistanceFromEdge(boundary, toTest, side);

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

703

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

704 if (distance < closestDistance) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

705 closestDistance = distance;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

706 closestSide = side;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

707 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

708 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

709

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

710 return closestSide;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

711 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

712

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

713 /**

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

714 * Returns a copy of the given rectangle

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

715 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

716 * @param toCopy rectangle to copy

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

717 * @return a copy of the given rectangle

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

718 * @since 3.0

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

719 */

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

720 public static Rectangle copy(Rectangle toCopy) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

721 return new Rectangle(toCopy.x, toCopy.y, toCopy.width, toCopy.height);

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

722 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

723

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

724 /**

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

725 * Returns the size of the rectangle, as a Point

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

726 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

727 * @param rectangle rectangle whose size is being computed

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

728 * @return the size of the given rectangle

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

729 * @since 3.0

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

730 */

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

731 public static Point getSize(Rectangle rectangle) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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732 return new Point(rectangle.width, rectangle.height);

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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733 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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734

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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735 /**

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

736 * Sets the size of the given rectangle to the given size

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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737 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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738 * @param rectangle rectangle to modify

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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739 * @param newSize new size of the rectangle

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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740 * @since 3.0

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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741 */

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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742 public static void setSize(Rectangle rectangle, Point newSize) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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743 rectangle.width = newSize.x;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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744 rectangle.height = newSize.y;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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745 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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746

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

747 /**

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

748 * Sets the x,y position of the given rectangle. For a normalized

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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749 * rectangle (a rectangle with positive width and height), this will

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

750 * be the upper-left corner of the rectangle.

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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751 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

752 * @param rectangle rectangle to modify

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

753 * @param newLocation new location of the rectangle

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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754 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

755 * @since 3.0

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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756 */

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

757 public static void setLocation(Rectangle rectangle, Point newLocation) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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758 rectangle.x = newLocation.x;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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759 rectangle.y = newLocation.y;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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760 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

761

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

762 /**

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

763 * Returns the x,y position of the given rectangle. For normalized rectangles

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

764 * (rectangles with positive width and height), this is the upper-left

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

765 * corner of the rectangle.

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

766 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

767 * @param toQuery rectangle to query

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

768 * @return a Point containing the x,y position of the rectangle

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

769 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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770 * @since 3.0

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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771 */

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772 public static Point getLocation(Rectangle toQuery) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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773 return new Point(toQuery.x, toQuery.y);

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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774 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

775

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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776 /**

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

777 * Returns a new rectangle with the given position and dimensions, expressed

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

778 * as points.

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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779 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

780 * @param position the (x,y) position of the rectangle

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

781 * @param size the size of the new rectangle, where (x,y) -> (width, height)

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782 * @return a new Rectangle with the given position and size

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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783 *

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diff changeset

784 * @since 3.0

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785 */

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diff changeset

786 public static Rectangle createRectangle(Point position, Point size) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

787 return new Rectangle(position.x, position.y, size.x, size.y);

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diff changeset

788 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

789

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790 /**

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diff changeset

791 * Repositions the 'inner' rectangle to lie completely within the bounds of the 'outer'

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

792 * rectangle if possible. One use for this is to ensure that, when setting a control's bounds,

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

793 * that they will always lie within its parent's client area (to avoid clipping).

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

794 *

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

795 * @param inner The 'inner' rectangle to be repositioned (should be smaller than the 'outer' rectangle)

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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796 * @param outer The 'outer' rectangle

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797 */

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

798 public static void moveInside(Rectangle inner, Rectangle outer) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

799 // adjust X

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

800 if (inner.x < outer.x) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

801 inner.x = outer.x;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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802 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

803 if ((inner.x + inner.width) > (outer.x + outer.width)) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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parents:

diff changeset

804 inner.x -= (inner.x + inner.width) - (outer.x + outer.width);

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diff changeset

805 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

806

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

807 // Adjust Y

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

808 if (inner.y < outer.y) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

809 inner.y = outer.y;

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

810 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

811 if ((inner.y + inner.height) > (outer.y + outer.height)) {

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

812 inner.y -= (inner.y + inner.height) - (outer.y + outer.height);

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

813 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

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814 }

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

815

bc29606a740c Added dwt-addons in original directory structure of eclipse.org

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diff changeset

816 }

Mercurial > projects > dwt2

annotate org.eclipse.jface/src/org/eclipse/jface/util/Geometry.d @ 12:bc29606a740c