projects/dwt2: org.eclipse.ui.forms/src/org/eclipse/ui/forms/widgets/SizeCache.d annotate

author	Frank Benoit <benoit@tionex.de>
date	Sat, 14 Mar 2009 18:23:29 +0100
parents
children	dbfb303e8fb0

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.ui.forms.widgets.SizeCache;
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.ui.forms.widgets.ILayoutExtension;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	16
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	17 import org.eclipse.swt.SWT;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	18 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	19 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	20 import org.eclipse.swt.widgets.Button;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	21 import org.eclipse.swt.widgets.Combo;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	22 import org.eclipse.swt.widgets.Composite;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	23 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	24 import org.eclipse.swt.widgets.Label;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	25 import org.eclipse.swt.widgets.List;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	26 import org.eclipse.swt.widgets.Layout;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	27 import org.eclipse.swt.widgets.ProgressBar;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	28 import org.eclipse.swt.widgets.Sash;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	29 import org.eclipse.swt.widgets.Scale;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	30 import org.eclipse.swt.widgets.Scrollable;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	31 import org.eclipse.swt.widgets.Slider;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	32 import org.eclipse.swt.widgets.Text;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	33 import org.eclipse.swt.widgets.ToolBar;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	34 import org.eclipse.swt.widgets.Tree;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	35 import org.eclipse.jface.util.Geometry;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	36 import org.eclipse.ui.internal.forms.widgets.FormUtil;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	37
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	38 import java.lang.all;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	39 import java.util.List;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	40 import java.util.Set;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	41
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	42 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	43 * Caches the preferred size of an SWT control
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 * @since 3.0
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	46 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	47 public class SizeCache {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	48 private Control control;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	49
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	50 private Point preferredSize;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	51
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	52 private int cachedWidthQuery;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	53 private int cachedWidthResult;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	54
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	55 private int cachedHeightQuery;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	56 private int cachedHeightResult;
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 private int minimumWidth;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	59 private int heightAtMinimumWidth = -1;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	60 private int maximumWidth;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	61
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	62 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	63 * True iff we should recursively flush all children on the next layout
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	64 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	65 private bool flushChildren;
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 * True iff changing the height hint does not affect the preferred width and changing
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	69 * the width hint does not change the preferred height
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	70 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	71 private bool independentDimensions = false;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	72
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	73 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	74 * True iff the preferred height for any hint larger than the preferred width will not
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	75 * change the preferred height.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	76 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	77 private bool preferredWidthOrLargerIsMinimumHeight = false;
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 // HACK: these values estimate how much to subtract from the width and height
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	80 // hints that get passed into computeSize, in order to produce a result
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	81 // that is exactly the desired size. To be removed once bug 46112 is fixed (note:
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	82 // bug 46112 is currently flagged as a duplicate, but there is still no workaround).
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	83 private int widthAdjustment = 0;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	84
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	85 private int heightAdjustment = 0;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	86
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	87 private int minimumHeight;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	88
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	89 private int widthAtMinimumHeight = -1;
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 // If the layout is dirty, this is the size of the control at the time its
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	92 // layout was dirtied. null if the layout is not dirty.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	93 private Point dirtySize = null;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	94
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 // END OF HACK
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	97
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	98 public this() {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	99 this(null);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	100 }
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 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	103 * Creates a cache for size computations on the given control
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 * @param control the control for which sizes will be calculated,
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	106 * or null to always return (0,0)
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	107 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	108 public this(Control control) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	109 setControl(control);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	110 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	111
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	112 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	113 * Sets the control whose size is being cached. Does nothing (will not
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	114 * even flush the cache) if this is the same control as last time.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	115 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	116 * @param newControl the control whose size is being cached, or null to always return (0,0)
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 public void setControl(Control newControl) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	119 if (newControl !is control) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	120 control = newControl;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	121 if (control is null) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	122 independentDimensions = true;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	123 preferredWidthOrLargerIsMinimumHeight = false;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	124 widthAdjustment = 0;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	125 heightAdjustment = 0;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	126 } else {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	127 independentDimensions = independentLengthAndWidth(control);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	128 preferredWidthOrLargerIsMinimumHeight = isPreferredWidthMaximum(control);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	129 computeHintOffset(control);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	130 flush();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	131 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	132 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	133 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	134
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	135 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	136 * Returns the control whose size is being cached
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	137 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	138 * @return the control whose size is being cached, or null if this cache always returns (0,0)
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	139 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	140 public Control getControl() {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	141 return control;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	142 }
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 * Flush the cache (should be called if the control's contents may have changed since the
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	146 * last query)
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 public void flush() {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	149 flush(true);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	150 }
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 void flush(bool recursive) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	153 preferredSize = null;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	154 cachedWidthQuery = -1;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	155 cachedWidthResult = -1;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	156 cachedHeightQuery = -1;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	157 cachedHeightResult = -1;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	158 minimumWidth = -1;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	159 maximumWidth = -1;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	160 minimumHeight = -1;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	161 heightAtMinimumWidth = -1;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	162 widthAtMinimumHeight = -1;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	163
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	164 if (recursive \|\| dirtySize !is null) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	165 if (control is null \|\| control.isDisposed()) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	166 dirtySize = new Point(0,0);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	167 control = null;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	168 } else {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	169 dirtySize = control.getSize();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	170 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	171 }
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 this.flushChildren = this.flushChildren \|\| recursive;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	174 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	175
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	176 private Point getPreferredSize() {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	177 if (preferredSize is null) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	178 preferredSize = controlComputeSize(SWT.DEFAULT, SWT.DEFAULT);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	179 }
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 return preferredSize;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	182 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	183
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 * Computes the preferred size of the control.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	186 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	187 * @param widthHint the known width of the control (pixels) or SWT.DEFAULT if unknown
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	188 * @param heightHint the known height of the control (pixels) or SWT.DEFAULT if unknown
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	189 * @return the preferred size of the control
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 public Point computeSize(int widthHint, int heightHint) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	192 if (control is null \|\| control.isDisposed()) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	193 return new Point(0, 0);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	194 }
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 // If we're asking for a result smaller than the minimum width
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	197 int minWidth = computeMinimumWidth();
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 if (widthHint !is SWT.DEFAULT && widthHint + widthAdjustment < minWidth) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	200 if (heightHint is SWT.DEFAULT) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	201 return new Point(minWidth, computeHeightAtMinimumWidth());
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	202 }
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 widthHint = minWidth - widthAdjustment;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	205 }
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 // If we're asking for a result smaller than the minimum height
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	208 int minHeight = computeMinimumHeight();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	209
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	210 if (heightHint !is SWT.DEFAULT && heightHint + heightAdjustment < minHeight) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	211 if (widthHint is SWT.DEFAULT) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	212 return new Point(computeWidthAtMinimumHeight(), minHeight);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	213 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	214
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	215 heightHint = minHeight - heightAdjustment;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	216 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	217
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	218 // If both dimensions were supplied in the input, compute the trivial result
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	219 if (widthHint !is SWT.DEFAULT && heightHint !is SWT.DEFAULT) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	220 return new Point(widthHint + widthAdjustment, heightHint + heightAdjustment);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	221 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	222
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	223 // No hints given -- find the preferred size
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	224 if (widthHint is SWT.DEFAULT && heightHint is SWT.DEFAULT) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	225 return Geometry.copy(getPreferredSize());
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	226 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	227
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	228 // If the length and width are independent, compute the preferred size
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	229 // and adjust whatever dimension was supplied in the input
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	230 if (independentDimensions) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	231 Point result = Geometry.copy(getPreferredSize());
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	232
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	233 if (widthHint !is SWT.DEFAULT) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	234 result.x = widthHint + widthAdjustment;
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
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	237 if (heightHint !is SWT.DEFAULT) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	238 result.y = heightHint + heightAdjustment;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	239 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	240
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	241 return result;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	242 }
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 // Computing a height
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	245 if (heightHint is SWT.DEFAULT) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	246 // If we know the control's preferred size
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	247 if (preferredSize !is null) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	248 // If the given width is the preferred width, then return the preferred size
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	249 if (widthHint + widthAdjustment is preferredSize.x) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	250 return Geometry.copy(preferredSize);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	251 }
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
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	254 // If we have a cached height measurement
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	255 if (cachedHeightQuery !is -1) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	256 // If this was measured with the same width hint
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	257 if (cachedHeightQuery is widthHint) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	258 return new Point(widthHint + widthAdjustment, cachedHeightResult);
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 // If this is a control where any hint larger than the
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	263 // preferred width results in the minimum height, determine if
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	264 // we can compute the result based on the preferred height
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	265 if (preferredWidthOrLargerIsMinimumHeight) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	266 // Computed the preferred size (if we don't already know it)
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	267 getPreferredSize();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	268
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	269 // If the width hint is larger than the preferred width, then
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	270 // we can compute the result from the preferred width
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	271 if (widthHint + widthAdjustment >= preferredSize.x) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	272 return new Point(widthHint + widthAdjustment, preferredSize.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 // Else we can't find an existing size in the cache, so recompute
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	277 // it from scratch.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	278 Point newHeight = controlComputeSize(widthHint - widthAdjustment, SWT.DEFAULT);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	279
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	280 cachedHeightQuery = heightHint;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	281 cachedHeightResult = newHeight.y;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	282
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	283 return newHeight;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	284 }
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 // Computing a width
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	287 if (widthHint is SWT.DEFAULT) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	288 // If we know the control's preferred size
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	289 if (preferredSize !is null) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	290 // If the given height is the preferred height, then return the preferred size
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	291 if (heightHint + heightAdjustment is preferredSize.y) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	292 return Geometry.copy(preferredSize);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	293 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	294 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	295
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	296 // If we have a cached width measurement with the same height hint
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	297 if (cachedWidthQuery is heightHint) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	298 return new Point(cachedWidthResult, heightHint + heightAdjustment);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	299 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	300
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	301 Point widthResult = controlComputeSize(SWT.DEFAULT, heightHint - heightAdjustment);
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 cachedWidthQuery = heightHint;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	304 cachedWidthResult = widthResult.x;
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 return widthResult;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	307 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	308
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	309 return controlComputeSize(widthHint, heightHint);
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
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	312 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	313 * Compute the control's size, and ensure that non-default hints are returned verbatim
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	314 * (this tries to compensate for SWT's hints, which aren't really the outer width of the
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	315 * control).
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 * @param widthHint the horizontal hint
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	318 * @param heightHint the vertical hint
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	319 * @return the control's size
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 public Point computeAdjustedSize(int widthHint, int heightHint) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	322 int adjustedWidthHint = widthHint is SWT.DEFAULT ? SWT.DEFAULT : Math
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	323 .max(0, widthHint - widthAdjustment);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	324 int adjustedHeightHint = heightHint is SWT.DEFAULT ? SWT.DEFAULT : Math
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	325 .max(0, heightHint - heightAdjustment);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	326
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	327 Point result = computeSize(adjustedWidthHint, adjustedHeightHint);
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 // If the amounts we subtracted off the widthHint and heightHint didn't do the trick, then
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	330 // manually adjust the result to ensure that a non-default hint will return that result verbatim.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	331
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	332 return result;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	333 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	334
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	335 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	336 * Returns true if the preferred length of the given control is
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	337 * independent of the width and visa-versa. If this returns true,
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	338 * then changing the widthHint argument to control.computeSize will
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	339 * never change the resulting height and changing the heightHint
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	340 * will never change the resulting width. Returns false if unknown.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	341 * <p>
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	342 * This information can be used to improve caching. Incorrectly returning
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	343 * a value of false may decrease performance, but incorrectly returning
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	344 * a value of true will generate incorrect layouts... so always return
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	345 * false if unsure.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	346 * </p>
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	347 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	348 * @param control
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	349 * @return
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	350 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	351 static bool independentLengthAndWidth(Control control) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	352 if (control is null \|\| control.isDisposed()) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	353 return true;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	354 }
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 if (null !is cast(Button)control \|\| null !is cast(ProgressBar)control
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	357 \|\| null !is cast(Sash)control \|\| null !is cast(Scale)control
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	358 \|\| null !is cast(Slider)control \|\| null !is cast(List)control
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	359 \|\| null !is cast(Combo)control \|\| null !is cast(Tree)control ) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	360 return true;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	361 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	362
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	363 if (null !is cast(Label)control \|\| null !is cast(Text)control ) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	364 return (control.getStyle() & SWT.WRAP) is 0;
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
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	367 // Unless we're certain that the control has this property, we should
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	368 // return false.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	369
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	370 return false;
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 * Try to figure out how much we need to subtract from the hints that we
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	375 * pass into the given control's computeSize(...) method. This tries to
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	376 * compensate for bug 46112. To be removed once SWT provides an "official"
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	377 * way to compute one dimension of a control's size given the other known
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	378 * dimension.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	379 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	380 * @param control
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 private void computeHintOffset(Control control) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	383 if (null !is cast(Scrollable)control ) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	384 // For scrollables, subtract off the trim size
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	385 Scrollable scrollable = cast(Scrollable) control;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	386 Rectangle trim = scrollable.computeTrim(0, 0, 0, 0);
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 widthAdjustment = trim.width;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	389 heightAdjustment = trim.height;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	390 } else {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	391 // For non-composites, subtract off 2 * the border size
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	392 widthAdjustment = control.getBorderWidth() * 2;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	393 heightAdjustment = widthAdjustment;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	394 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	395 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	396
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	397 private Point controlComputeSize(int widthHint, int heightHint) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	398 Point result = control.computeSize(widthHint, heightHint, flushChildren);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	399 flushChildren = false;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	400
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	401 return result;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	402 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	403
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	404 /**
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	405 * Returns true only if the control will return a constant height for any
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	406 * width hint larger than the preferred width. Returns false if there is
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	407 * any situation in which the control does not have this property.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	408 *
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	409 * <p>
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	410 * Note: this method is only important for wrapping controls, and it can
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	411 * safely return false for anything else. AFAIK, all SWT controls have this
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	412 * property, but to be safe they will only be added to the list once the
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	413 * property has been confirmed.
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	414 * </p>
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 * @param control
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	417 * @return
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	418 */
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	419 private static bool isPreferredWidthMaximum(Control control) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	420 return (null !is cast(ToolBar)control
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	421 //\|\| control instanceof CoolBar
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	422 \|\| null !is cast(Label)control );
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	423 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	424
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	425 public int computeMinimumWidth() {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	426 if (minimumWidth is -1) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	427 if (null !is cast(Composite)control ) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	428 Layout layout = (cast(Composite)control).getLayout();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	429 if (null !is cast(ILayoutExtension)layout ) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	430 minimumWidth = (cast(ILayoutExtension)layout).computeMinimumWidth(cast(Composite)control, flushChildren);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	431 flushChildren = false;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	432 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	433 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	434 }
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 (minimumWidth is -1) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	437 Point minWidth = controlComputeSize(FormUtil.getWidthHint(5, control), SWT.DEFAULT);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	438 minimumWidth = minWidth.x;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	439 heightAtMinimumWidth = minWidth.y;
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 return minimumWidth;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	443 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	444
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	445 public int computeMaximumWidth() {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	446 if (maximumWidth is -1) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	447 if (null !is cast(Composite)control ) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	448 Layout layout = (cast(Composite)control).getLayout();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	449 if (null !is cast(ILayoutExtension)layout ) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	450 maximumWidth = (cast(ILayoutExtension)layout).computeMaximumWidth(cast(Composite)control, flushChildren);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	451 flushChildren = false;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	452 }
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 }
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 if (maximumWidth is -1) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	457 maximumWidth = getPreferredSize().x;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	458 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	459
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	460 return maximumWidth;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	461 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	462
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	463 private int computeHeightAtMinimumWidth() {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	464 int minimumWidth = computeMinimumWidth();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	465
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	466 if (heightAtMinimumWidth is -1) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	467 heightAtMinimumWidth = controlComputeSize(minimumWidth - widthAdjustment, SWT.DEFAULT).y;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	468 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	469
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	470 return heightAtMinimumWidth;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	471 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	472
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	473 private int computeWidthAtMinimumHeight() {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	474 int minimumHeight = computeMinimumHeight();
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	475
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	476 if (widthAtMinimumHeight is -1) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	477 widthAtMinimumHeight = controlComputeSize(SWT.DEFAULT, minimumHeight - heightAdjustment).x;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	478 }
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 return widthAtMinimumHeight;
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
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	483 private int computeMinimumHeight() {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	484 if (minimumHeight is -1) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	485 Point sizeAtMinHeight = controlComputeSize(SWT.DEFAULT, 0);
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	486
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	487 minimumHeight = sizeAtMinHeight.y;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	488 widthAtMinimumHeight = sizeAtMinHeight.x;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	489 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	490
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	491 return minimumHeight;
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	492 }
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 public Point computeMinimumSize() {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	495 return new Point(computeMinimumWidth(), computeMinimumHeight());
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	496 }
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	497
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	498 public void setSize(Point newSize) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	499 if (control !is null) {
bc29606a740c Added dwt-addons in original directory structure of eclipse.org Frank Benoit <benoit@tionex.de> parents: diff changeset	500 control.setSize(newSize);

12

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

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

Frank Benoit <benoit@tionex.de>

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

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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.ui.forms.widgets.SizeCache;

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14

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15 import org.eclipse.ui.forms.widgets.ILayoutExtension;

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16

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17 import org.eclipse.swt.SWT;

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

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

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20 import org.eclipse.swt.widgets.Button;

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21 import org.eclipse.swt.widgets.Combo;

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22 import org.eclipse.swt.widgets.Composite;

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

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24 import org.eclipse.swt.widgets.Label;

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25 import org.eclipse.swt.widgets.List;

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26 import org.eclipse.swt.widgets.Layout;

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27 import org.eclipse.swt.widgets.ProgressBar;

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28 import org.eclipse.swt.widgets.Sash;

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29 import org.eclipse.swt.widgets.Scale;

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30 import org.eclipse.swt.widgets.Scrollable;

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31 import org.eclipse.swt.widgets.Slider;

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32 import org.eclipse.swt.widgets.Text;

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33 import org.eclipse.swt.widgets.ToolBar;

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34 import org.eclipse.swt.widgets.Tree;

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35 import org.eclipse.jface.util.Geometry;

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36 import org.eclipse.ui.internal.forms.widgets.FormUtil;

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37

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38 import java.lang.all;

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39 import java.util.List;

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40 import java.util.Set;

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41

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42 /**

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43 * Caches the preferred size of an SWT control

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44 *

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45 * @since 3.0

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46 */

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47 public class SizeCache {

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48 private Control control;

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49

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50 private Point preferredSize;

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51

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52 private int cachedWidthQuery;

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53 private int cachedWidthResult;

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54

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55 private int cachedHeightQuery;

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56 private int cachedHeightResult;

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57

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58 private int minimumWidth;

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59 private int heightAtMinimumWidth = -1;

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60 private int maximumWidth;

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61

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62 /**

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63 * True iff we should recursively flush all children on the next layout

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64 */

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65 private bool flushChildren;

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66

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67 /**

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68 * True iff changing the height hint does not affect the preferred width and changing

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69 * the width hint does not change the preferred height

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70 */

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71 private bool independentDimensions = false;

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72

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73 /**

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74 * True iff the preferred height for any hint larger than the preferred width will not

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75 * change the preferred height.

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76 */

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77 private bool preferredWidthOrLargerIsMinimumHeight = false;

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78

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79 // HACK: these values estimate how much to subtract from the width and height

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80 // hints that get passed into computeSize, in order to produce a result

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81 // that is exactly the desired size. To be removed once bug 46112 is fixed (note:

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82 // bug 46112 is currently flagged as a duplicate, but there is still no workaround).

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83 private int widthAdjustment = 0;

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84

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85 private int heightAdjustment = 0;

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86

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87 private int minimumHeight;

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88

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89 private int widthAtMinimumHeight = -1;

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90

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91 // If the layout is dirty, this is the size of the control at the time its

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92 // layout was dirtied. null if the layout is not dirty.

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93 private Point dirtySize = null;

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94

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95

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96 // END OF HACK

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97

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98 public this() {

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99 this(null);

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100 }

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101

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102 /**

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103 * Creates a cache for size computations on the given control

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104 *

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105 * @param control the control for which sizes will be calculated,

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106 * or null to always return (0,0)

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107 */

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108 public this(Control control) {

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109 setControl(control);

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110 }

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111

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112 /**

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113 * Sets the control whose size is being cached. Does nothing (will not

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114 * even flush the cache) if this is the same control as last time.

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115 *

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116 * @param newControl the control whose size is being cached, or null to always return (0,0)

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117 */

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118 public void setControl(Control newControl) {

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119 if (newControl !is control) {

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120 control = newControl;

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121 if (control is null) {

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122 independentDimensions = true;

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123 preferredWidthOrLargerIsMinimumHeight = false;

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124 widthAdjustment = 0;

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125 heightAdjustment = 0;

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126 } else {

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127 independentDimensions = independentLengthAndWidth(control);

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128 preferredWidthOrLargerIsMinimumHeight = isPreferredWidthMaximum(control);

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129 computeHintOffset(control);

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130 flush();

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131 }

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132 }

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133 }

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134

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135 /**

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136 * Returns the control whose size is being cached

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137 *

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138 * @return the control whose size is being cached, or null if this cache always returns (0,0)

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139 */

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140 public Control getControl() {

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141 return control;

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142 }

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143

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144 /**

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145 * Flush the cache (should be called if the control's contents may have changed since the

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146 * last query)

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147 */

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148 public void flush() {

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149 flush(true);

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150 }

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151

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152 public void flush(bool recursive) {

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153 preferredSize = null;

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154 cachedWidthQuery = -1;

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155 cachedWidthResult = -1;

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156 cachedHeightQuery = -1;

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157 cachedHeightResult = -1;

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158 minimumWidth = -1;

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159 maximumWidth = -1;

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160 minimumHeight = -1;

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161 heightAtMinimumWidth = -1;

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162 widthAtMinimumHeight = -1;

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163

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164 if (recursive || dirtySize !is null) {

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165 if (control is null || control.isDisposed()) {

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166 dirtySize = new Point(0,0);

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167 control = null;

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168 } else {

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169 dirtySize = control.getSize();

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170 }

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171 }

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172

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173 this.flushChildren = this.flushChildren || recursive;

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174 }

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175

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176 private Point getPreferredSize() {

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177 if (preferredSize is null) {

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178 preferredSize = controlComputeSize(SWT.DEFAULT, SWT.DEFAULT);

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179 }

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180

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181 return preferredSize;

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182 }

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183

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184 /**

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185 * Computes the preferred size of the control.

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186 *

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187 * @param widthHint the known width of the control (pixels) or SWT.DEFAULT if unknown

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188 * @param heightHint the known height of the control (pixels) or SWT.DEFAULT if unknown

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189 * @return the preferred size of the control

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190 */

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191 public Point computeSize(int widthHint, int heightHint) {

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192 if (control is null || control.isDisposed()) {

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193 return new Point(0, 0);

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194 }

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195

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196 // If we're asking for a result smaller than the minimum width

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197 int minWidth = computeMinimumWidth();

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198

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199 if (widthHint !is SWT.DEFAULT && widthHint + widthAdjustment < minWidth) {

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200 if (heightHint is SWT.DEFAULT) {

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201 return new Point(minWidth, computeHeightAtMinimumWidth());

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202 }

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203

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204 widthHint = minWidth - widthAdjustment;

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205 }

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206

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207 // If we're asking for a result smaller than the minimum height

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208 int minHeight = computeMinimumHeight();

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209

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210 if (heightHint !is SWT.DEFAULT && heightHint + heightAdjustment < minHeight) {

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211 if (widthHint is SWT.DEFAULT) {

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212 return new Point(computeWidthAtMinimumHeight(), minHeight);

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213 }

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214

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215 heightHint = minHeight - heightAdjustment;

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216 }

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217

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218 // If both dimensions were supplied in the input, compute the trivial result

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219 if (widthHint !is SWT.DEFAULT && heightHint !is SWT.DEFAULT) {

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220 return new Point(widthHint + widthAdjustment, heightHint + heightAdjustment);

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221 }

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222

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223 // No hints given -- find the preferred size

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224 if (widthHint is SWT.DEFAULT && heightHint is SWT.DEFAULT) {

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225 return Geometry.copy(getPreferredSize());

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226 }

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227

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228 // If the length and width are independent, compute the preferred size

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229 // and adjust whatever dimension was supplied in the input

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230 if (independentDimensions) {

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231 Point result = Geometry.copy(getPreferredSize());

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232

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233 if (widthHint !is SWT.DEFAULT) {

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234 result.x = widthHint + widthAdjustment;

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235 }

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236

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237 if (heightHint !is SWT.DEFAULT) {

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238 result.y = heightHint + heightAdjustment;

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239 }

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240

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241 return result;

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242 }

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243

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244 // Computing a height

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245 if (heightHint is SWT.DEFAULT) {

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246 // If we know the control's preferred size

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247 if (preferredSize !is null) {

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248 // If the given width is the preferred width, then return the preferred size

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249 if (widthHint + widthAdjustment is preferredSize.x) {

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250 return Geometry.copy(preferredSize);

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251 }

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252 }

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253

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254 // If we have a cached height measurement

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255 if (cachedHeightQuery !is -1) {

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256 // If this was measured with the same width hint

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257 if (cachedHeightQuery is widthHint) {

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258 return new Point(widthHint + widthAdjustment, cachedHeightResult);

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259 }

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260 }

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261

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262 // If this is a control where any hint larger than the

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263 // preferred width results in the minimum height, determine if

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264 // we can compute the result based on the preferred height

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265 if (preferredWidthOrLargerIsMinimumHeight) {

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266 // Computed the preferred size (if we don't already know it)

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267 getPreferredSize();

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268

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269 // If the width hint is larger than the preferred width, then

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270 // we can compute the result from the preferred width

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271 if (widthHint + widthAdjustment >= preferredSize.x) {

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272 return new Point(widthHint + widthAdjustment, preferredSize.y);

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273 }

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274 }

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275

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276 // Else we can't find an existing size in the cache, so recompute

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277 // it from scratch.

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278 Point newHeight = controlComputeSize(widthHint - widthAdjustment, SWT.DEFAULT);

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279

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280 cachedHeightQuery = heightHint;

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281 cachedHeightResult = newHeight.y;

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282

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283 return newHeight;

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284 }

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285

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286 // Computing a width

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287 if (widthHint is SWT.DEFAULT) {

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288 // If we know the control's preferred size

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289 if (preferredSize !is null) {

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290 // If the given height is the preferred height, then return the preferred size

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291 if (heightHint + heightAdjustment is preferredSize.y) {

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292 return Geometry.copy(preferredSize);

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293 }

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294 }

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295

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296 // If we have a cached width measurement with the same height hint

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297 if (cachedWidthQuery is heightHint) {

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298 return new Point(cachedWidthResult, heightHint + heightAdjustment);

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299 }

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300

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301 Point widthResult = controlComputeSize(SWT.DEFAULT, heightHint - heightAdjustment);

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302

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303 cachedWidthQuery = heightHint;

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304 cachedWidthResult = widthResult.x;

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305

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306 return widthResult;

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307 }

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308

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309 return controlComputeSize(widthHint, heightHint);

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310 }

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311

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312 /**

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313 * Compute the control's size, and ensure that non-default hints are returned verbatim

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314 * (this tries to compensate for SWT's hints, which aren't really the outer width of the

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315 * control).

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316 *

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317 * @param widthHint the horizontal hint

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318 * @param heightHint the vertical hint

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319 * @return the control's size

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320 */

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321 public Point computeAdjustedSize(int widthHint, int heightHint) {

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322 int adjustedWidthHint = widthHint is SWT.DEFAULT ? SWT.DEFAULT : Math

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323 .max(0, widthHint - widthAdjustment);

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324 int adjustedHeightHint = heightHint is SWT.DEFAULT ? SWT.DEFAULT : Math

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325 .max(0, heightHint - heightAdjustment);

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326

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327 Point result = computeSize(adjustedWidthHint, adjustedHeightHint);

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328

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329 // If the amounts we subtracted off the widthHint and heightHint didn't do the trick, then

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330 // manually adjust the result to ensure that a non-default hint will return that result verbatim.

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331

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332 return result;

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333 }

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334

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335 /**

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336 * Returns true if the preferred length of the given control is

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337 * independent of the width and visa-versa. If this returns true,

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338 * then changing the widthHint argument to control.computeSize will

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339 * never change the resulting height and changing the heightHint

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340 * will never change the resulting width. Returns false if unknown.

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341 * <p>

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342 * This information can be used to improve caching. Incorrectly returning

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343 * a value of false may decrease performance, but incorrectly returning

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344 * a value of true will generate incorrect layouts... so always return

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345 * false if unsure.

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346 * </p>

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347 *

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348 * @param control

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349 * @return

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350 */

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351 static bool independentLengthAndWidth(Control control) {

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352 if (control is null || control.isDisposed()) {

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353 return true;

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354 }

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355

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356 if (null !is cast(Button)control || null !is cast(ProgressBar)control

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357 || null !is cast(Sash)control || null !is cast(Scale)control

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358 || null !is cast(Slider)control || null !is cast(List)control

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359 || null !is cast(Combo)control || null !is cast(Tree)control ) {

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360 return true;

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361 }

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362

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363 if (null !is cast(Label)control || null !is cast(Text)control ) {

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364 return (control.getStyle() & SWT.WRAP) is 0;

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365 }

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366

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367 // Unless we're certain that the control has this property, we should

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368 // return false.

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369

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370 return false;

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371 }

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372

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373 /**

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374 * Try to figure out how much we need to subtract from the hints that we

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375 * pass into the given control's computeSize(...) method. This tries to

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376 * compensate for bug 46112. To be removed once SWT provides an "official"

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377 * way to compute one dimension of a control's size given the other known

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378 * dimension.

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379 *

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380 * @param control

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381 */

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382 private void computeHintOffset(Control control) {

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383 if (null !is cast(Scrollable)control ) {

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384 // For scrollables, subtract off the trim size

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385 Scrollable scrollable = cast(Scrollable) control;

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386 Rectangle trim = scrollable.computeTrim(0, 0, 0, 0);

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387

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388 widthAdjustment = trim.width;

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389 heightAdjustment = trim.height;

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390 } else {

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391 // For non-composites, subtract off 2 * the border size

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392 widthAdjustment = control.getBorderWidth() * 2;

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393 heightAdjustment = widthAdjustment;

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394 }

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395 }

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396

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397 private Point controlComputeSize(int widthHint, int heightHint) {

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398 Point result = control.computeSize(widthHint, heightHint, flushChildren);

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399 flushChildren = false;

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400

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401 return result;

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402 }

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403

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404 /**

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405 * Returns true only if the control will return a constant height for any

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406 * width hint larger than the preferred width. Returns false if there is

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407 * any situation in which the control does not have this property.

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408 *

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409 * <p>

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410 * Note: this method is only important for wrapping controls, and it can

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411 * safely return false for anything else. AFAIK, all SWT controls have this

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412 * property, but to be safe they will only be added to the list once the

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413 * property has been confirmed.

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414 * </p>

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415 *

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416 * @param control

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417 * @return

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418 */

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419 private static bool isPreferredWidthMaximum(Control control) {

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420 return (null !is cast(ToolBar)control

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421 //|| control instanceof CoolBar

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422 || null !is cast(Label)control );

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423 }

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424

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425 public int computeMinimumWidth() {

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426 if (minimumWidth is -1) {

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427 if (null !is cast(Composite)control ) {

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428 Layout layout = (cast(Composite)control).getLayout();

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429 if (null !is cast(ILayoutExtension)layout ) {

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430 minimumWidth = (cast(ILayoutExtension)layout).computeMinimumWidth(cast(Composite)control, flushChildren);

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431 flushChildren = false;

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432 }

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433 }

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434 }

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435

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436 if (minimumWidth is -1) {

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437 Point minWidth = controlComputeSize(FormUtil.getWidthHint(5, control), SWT.DEFAULT);

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438 minimumWidth = minWidth.x;

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439 heightAtMinimumWidth = minWidth.y;

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440 }

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441

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442 return minimumWidth;

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443 }

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444

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445 public int computeMaximumWidth() {

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446 if (maximumWidth is -1) {

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447 if (null !is cast(Composite)control ) {

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diff changeset

448 Layout layout = (cast(Composite)control).getLayout();

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

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449 if (null !is cast(ILayoutExtension)layout ) {

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

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450 maximumWidth = (cast(ILayoutExtension)layout).computeMaximumWidth(cast(Composite)control, flushChildren);

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451 flushChildren = false;

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452 }

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

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parents:

diff changeset

453 }

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

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

454 }

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

Frank Benoit <benoit@tionex.de>

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diff changeset

455

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

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diff changeset

456 if (maximumWidth is -1) {

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

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457 maximumWidth = getPreferredSize().x;

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458 }

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

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459

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

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460 return maximumWidth;

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

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461 }

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

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462

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463 private int computeHeightAtMinimumWidth() {

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

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464 int minimumWidth = computeMinimumWidth();

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

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465

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

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466 if (heightAtMinimumWidth is -1) {

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

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467 heightAtMinimumWidth = controlComputeSize(minimumWidth - widthAdjustment, SWT.DEFAULT).y;

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

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468 }

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

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469

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

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470 return heightAtMinimumWidth;

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471 }

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

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472

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diff changeset

473 private int computeWidthAtMinimumHeight() {

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474 int minimumHeight = computeMinimumHeight();

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475

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

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476 if (widthAtMinimumHeight is -1) {

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

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diff changeset

477 widthAtMinimumHeight = controlComputeSize(SWT.DEFAULT, minimumHeight - heightAdjustment).x;

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

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478 }

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

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diff changeset

479

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480 return widthAtMinimumHeight;

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481 }

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diff changeset

482

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diff changeset

483 private int computeMinimumHeight() {

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484 if (minimumHeight is -1) {

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485 Point sizeAtMinHeight = controlComputeSize(SWT.DEFAULT, 0);

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

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486

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487 minimumHeight = sizeAtMinHeight.y;

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488 widthAtMinimumHeight = sizeAtMinHeight.x;

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489 }

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diff changeset

490

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491 return minimumHeight;

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diff changeset

492 }

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diff changeset

493

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494 public Point computeMinimumSize() {

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495 return new Point(computeMinimumWidth(), computeMinimumHeight());

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diff changeset

496 }

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

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parents:

diff changeset

497

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diff changeset

498 public void setSize(Point newSize) {

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diff changeset

499 if (control !is null) {

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diff changeset

500 control.setSize(newSize);

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parents:

diff changeset

501 }

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

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

502

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diff changeset

503 layoutIfNecessary();

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diff changeset

504 }

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diff changeset

505

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diff changeset

506 public void setSize(int width, int height) {

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507 if (control !is null) {

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diff changeset

508 control.setSize(width, height);

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parents:

diff changeset

509 }

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

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

510

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diff changeset

511 layoutIfNecessary();

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diff changeset

512 }

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parents:

diff changeset

513

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diff changeset

514 public void setBounds(int x, int y, int width, int height) {

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diff changeset

515 if (control !is null) {

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diff changeset

516 control.setBounds(x, y, width, height);

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diff changeset

517 }

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parents:

diff changeset

518

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diff changeset

519 layoutIfNecessary();

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diff changeset

520 }

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parents:

diff changeset

521

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diff changeset

522 public void setBounds(Rectangle bounds) {

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parents:

diff changeset

523 if (control !is null) {

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diff changeset

524 control.setBounds(bounds);

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parents:

diff changeset

525 }

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

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

526

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

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diff changeset

527 layoutIfNecessary();

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parents:

diff changeset

528 }

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

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

529

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Frank Benoit <benoit@tionex.de>

parents:

diff changeset

530 public void layoutIfNecessary() {

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parents:

diff changeset

531 if (dirtySize !is null && control !is null && null !is cast(Composite)control ) {

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

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parents:

diff changeset

532 if (control.getSize().opEquals(dirtySize)) {

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

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parents:

diff changeset

533 (cast(Composite)control).layout(flushChildren);

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Frank Benoit <benoit@tionex.de>

parents:

diff changeset

534 flushChildren = false;

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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 dirtySize = null;

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

Frank Benoit <benoit@tionex.de>

parents:

diff changeset

538 }

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

Frank Benoit <benoit@tionex.de>

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diff changeset

539 }

Mercurial > projects > dwt2

annotate org.eclipse.ui.forms/src/org/eclipse/ui/forms/widgets/SizeCache.d @ 12:bc29606a740c