projects/dwt-mac: dwt/layout/FormLayout.d annotate

annotate dwt/layout/FormLayout.d @ 156:969e7de37c3d default tip

Fixes to get dwt to work with dmd and ldc

author	Jacob Carlborg <doob@me.com>
date	Wed, 08 Jul 2009 21:56:44 +0200
parents	d8635bb48c7c
children

rev	line source
45 d8635bb48c7c Merge with SWT 3.5 Jacob Carlborg <doob@me.com> parents: 40 diff changeset	1 /*******************************************************************************
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	2 * Copyright (c) 2000, 2008 IBM Corporation and others.
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	3 * All rights reserved. This program and the accompanying materials
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	4 * are made available under the terms of the Eclipse Public License v1.0
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	5 * which accompanies this distribution, and is available at
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	6 * http://www.eclipse.org/legal/epl-v10.html
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	7 *
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	8 * Contributors:
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	9 * IBM Corporation - initial API and implementation
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	10 * Port to the D programming language:
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	11 * Frank Benoit <benoit@tionex.de>
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	12 *******************************************************************************/
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	13 module dwt.layout.FormLayout;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	14
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	15 import dwt.layout.FormAttachment;
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	16 import dwt.layout.FormData;
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	17 import dwt.DWT;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	18 import dwt.graphics.Point;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	19 import dwt.graphics.Rectangle;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	20 import dwt.widgets.Control;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	21 import dwt.widgets.Layout;
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	22 import dwt.widgets.Composite;
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	23 import dwt.widgets.Scrollable;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	24
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	25 import tango.util.Convert;
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	26 import Math = tango.math.Math;
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	27 import dwt.dwthelper.utils;
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	28
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	29 /**
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	30 * Instances of this class control the position and size of the
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	31 * children of a composite control by using <code>FormAttachments</code>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	32 * to optionally configure the left, top, right and bottom edges of
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	33 * each child.
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	34 * <p>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	35 * The following example code creates a <code>FormLayout</code> and then sets
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	36 * it into a <code>Shell</code>:
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	37 * <pre>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	38 * Display display = new Display ();
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	39 * Shell shell = new Shell(display);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	40 * FormLayout layout = new FormLayout();
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	41 * layout.marginWidth = 3;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	42 * layout.marginHeight = 3;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	43 * shell.setLayout(layout);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	44 * </pre>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	45 * </p>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	46 * <p>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	47 * To use a <code>FormLayout</code>, create a <code>FormData</code> with
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	48 * <code>FormAttachment</code> for each child of <code>Composite</code>.
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	49 * The following example code attaches <code>button1</code> to the top
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	50 * and left edge of the composite and <code>button2</code> to the right
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	51 * edge of <code>button1</code> and the top and right edges of the
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	52 * composite:
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	53 * <pre>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	54 * FormData data1 = new FormData();
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	55 * data1.left = new FormAttachment(0, 0);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	56 * data1.top = new FormAttachment(0, 0);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	57 * button1.setLayoutData(data1);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	58 * FormData data2 = new FormData();
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	59 * data2.left = new FormAttachment(button1);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	60 * data2.top = new FormAttachment(0, 0);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	61 * data2.right = new FormAttachment(100, 0);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	62 * button2.setLayoutData(data2);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	63 * </pre>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	64 * </p>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	65 * <p>
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	66 * Each side of a child control can be attached to a position in the parent
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	67 * composite, or to other controls within the <code>Composite</code> by
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	68 * creating instances of <code>FormAttachment</code> and setting them into
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	69 * the top, bottom, left, and right fields of the child's <code>FormData</code>.
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	70 * </p>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	71 * <p>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	72 * If a side is not given an attachment, it is defined as not being attached
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	73 * to anything, causing the child to remain at its preferred size. If a child
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	74 * is given no attachment on either the left or the right or top or bottom, it is
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	75 * automatically attached to the left and top of the composite respectively.
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	76 * The following code positions <code>button1</code> and <code>button2</code>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	77 * but relies on default attachments:
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	78 * <pre>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	79 * FormData data2 = new FormData();
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	80 * data2.left = new FormAttachment(button1);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	81 * data2.right = new FormAttachment(100, 0);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	82 * button2.setLayoutData(data2);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	83 * </pre>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	84 * </p>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	85 * <p>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	86 * IMPORTANT: Do not define circular attachments. For example, do not attach
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	87 * the right edge of <code>button1</code> to the left edge of <code>button2</code>
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	88 * and then attach the left edge of <code>button2</code> to the right edge of
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	89 * <code>button1</code>. This will over constrain the layout, causing undefined
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	90 * behavior. The algorithm will terminate, but the results are undefined.
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	91 * </p>
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	92 *
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	93 * @see FormData
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	94 * @see FormAttachment
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	95 * @see <a href="http://www.eclipse.org/swt/snippets/#formlayout">FormLayout snippets</a>
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	96 * @see <a href="http://www.eclipse.org/swt/examples.php">DWT Example: LayoutExample</a>
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	97 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	98 *
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	99 * @since 2.0
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	100 */
3 649b8e223d5a fix extends Frank Benoit <benoit@tionex.de> parents: 0 diff changeset	101 public final class FormLayout : Layout {
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	102
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	103 /**
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	104 * marginWidth specifies the number of pixels of horizontal margin
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	105 * that will be placed along the left and right edges of the layout.
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	106 *
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	107 * The default value is 0.
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	108 */
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	109 public int marginWidth = 0;
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	110
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	111 /**
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	112 * marginHeight specifies the number of pixels of vertical margin
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	113 * that will be placed along the top and bottom edges of the layout.
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	114 *
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	115 * The default value is 0.
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	116 */
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	117 public int marginHeight = 0;
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	118
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	119
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	120 /**
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	121 * marginLeft specifies the number of pixels of horizontal margin
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	122 * that will be placed along the left edge of the layout.
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	123 *
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	124 * The default value is 0.
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	125 *
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	126 * @since 3.1
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	127 */
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	128 public int marginLeft = 0;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	129
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	130 /**
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	131 * marginTop specifies the number of pixels of vertical margin
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	132 * that will be placed along the top edge of the layout.
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	133 *
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	134 * The default value is 0.
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	135 *
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	136 * @since 3.1
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	137 */
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	138 public int marginTop = 0;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	139
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	140 /**
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	141 * marginRight specifies the number of pixels of horizontal margin
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	142 * that will be placed along the right edge of the layout.
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	143 *
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	144 * The default value is 0.
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	145 *
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	146 * @since 3.1
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	147 */
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	148 public int marginRight = 0;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	149
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	150 /**
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	151 * marginBottom specifies the number of pixels of vertical margin
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	152 * that will be placed along the bottom edge of the layout.
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	153 *
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	154 * The default value is 0.
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	155 *
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	156 * @since 3.1
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	157 */
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	158 public int marginBottom = 0;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	159
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	160 /**
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	161 * spacing specifies the number of pixels between the edge of one control
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	162 * and the edge of its neighbouring control.
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	163 *
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	164 * The default value is 0.
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	165 *
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	166 * @since 3.0
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	167 */
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	168 public int spacing = 0;
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	169
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	170 /**
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	171 * Constructs a new instance of this class.
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	172 */
5 1a8b3cb347e0 Fix Ctors to 'this' Frank Benoit <benoit@tionex.de> parents: 3 diff changeset	173 public this () {
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	174 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	175
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	176 /*
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	177 * Computes the preferred height of the form with
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	178 * respect to the preferred height of the control.
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	179 *
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	180 * Given that the equations for top (T) and bottom (B)
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	181 * of the control in terms of the height of the form (X)
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	182 * are:
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	183 * T = AX + B
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	184 * B = CX + D
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	185 *
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	186 * The equation for the height of the control (H)
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	187 * is bottom (B) minus top (T) or (H = B - T) or:
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	188 *
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	189 * H = (CX + D) - (AX + B)
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	190 *
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	191 * Solving for (X), the height of the form, we get:
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	192 *
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	193 * X = (H + B - D) / (C - A)
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	194 *
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	195 * When (A = C), (C - A = 0) and the equation has no
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	196 * solution for X. This is a special case meaning that
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	197 * the control does not constrain the height of the
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	198 * form. In this case, we need to arbitrarily define
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	199 * the height of the form (X):
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	200 *
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	201 * Case 1: A = C, A = 0, C = 0
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	202 *
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	203 * Let X = D, the distance from the top of the form
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	204 * to the bottom edge of the control. In this case,
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	205 * the control was attached to the top of the form
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	206 * and the form needs to be large enough to show the
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	207 * bottom edge of the control.
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	208 *
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	209 * Case 2: A = C, A = 1, C = 1
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	210 *
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	211 * Let X = -B, the distance from the bottom of the
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	212 * form to the top edge of the control. In this case,
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	213 * the control was attached to the bottom of the form
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	214 * and the only way that the control would be visible
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	215 * is if the offset is negative. If the offset is
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	216 * positive, there is no possible height for the form
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	217 * that will show the control as it will always be
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	218 * below the bottom edge of the form.
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	219 *
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	220 * Case 3: A = C, A !is 0, C !is 0 and A !is 1, C !is 0
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	221 *
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	222 * Let X = D / (1 - C), the distance from the top of the
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	223 * form to the bottom edge of the control. In this case,
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	224 * since C is not 0 or 1, it must be a fraction, U / V.
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	225 * The offset D is the distance from CX to the bottom edge
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	226 * of the control. This represents a fraction of the form
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	227 * (1 - C)X. Since the height of a fraction of the form is
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	228 * known, the height of the entire form can be found by setting
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	229 * (1 - C)X = D. We solve this equation for X in terms of U
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	230 * and V, giving us X = (U * D) / (U - V). Similarly, if the
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	231 * offset D is negative, the control is positioned above CX.
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	232 * The offset -B is the distance from the top edge of the control
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	233 * to CX. We can find the height of the entire form by setting
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	234 * CX = -B. Solving in terms of U and V gives us X = (-B * V) / U.
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	235 */
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	236 int computeHeight (Control control, FormData data, bool flushCache) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	237 FormAttachment top = data.getTopAttachment (control, spacing, flushCache);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	238 FormAttachment bottom = data.getBottomAttachment (control, spacing, flushCache);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	239 FormAttachment height = bottom.minus (top);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	240 if (height.numerator is 0) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	241 if (bottom.numerator is 0) return bottom.offset;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	242 if (bottom.numerator is bottom.denominator) return -top.offset;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	243 if (bottom.offset <= 0) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	244 return -top.offset * top.denominator / bottom.numerator;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	245 }
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	246 int divider = bottom.denominator - bottom.numerator;
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	247 return bottom.denominator * bottom.offset / divider;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	248 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	249 return height.solveY (data.getHeight (control, flushCache));
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	250 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	251
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	252 override protected Point computeSize (Composite composite, int wHint, int hHint, bool flushCache) {
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	253 Point size = layout (composite, false, 0, 0, wHint, hHint, flushCache);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	254 if (wHint !is DWT.DEFAULT) size.x = wHint;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	255 if (hHint !is DWT.DEFAULT) size.y = hHint;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	256 return size;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	257 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	258
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	259 override protected bool flushCache (Control control) {
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	260 Object data = control.getLayoutData ();
7 e831403a80a9 Add 'cast' to casts Frank Benoit <benoit@tionex.de> parents: 5 diff changeset	261 if (data !is null) (cast(FormData) data).flushCache ();
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	262 return true;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	263 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	264
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	265 String getName () {
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	266 String string = this.classinfo.name;
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	267 int index = string.lastIndexOf('.');
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	268 if (index is -1 ) return string;
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	269 return string[ index + 1 .. string.length ];
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	270 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	271
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	272 /*
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	273 * Computes the preferred height of the form with
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	274 * respect to the preferred height of the control.
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	275 */
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	276 int computeWidth (Control control, FormData data, bool flushCache) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	277 FormAttachment left = data.getLeftAttachment (control, spacing, flushCache);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	278 FormAttachment right = data.getRightAttachment (control, spacing, flushCache);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	279 FormAttachment width = right.minus (left);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	280 if (width.numerator is 0) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	281 if (right.numerator is 0) return right.offset;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	282 if (right.numerator is right.denominator) return -left.offset;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	283 if (right.offset <= 0) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	284 return -left.offset * left.denominator / left.numerator;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	285 }
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	286 int divider = right.denominator - right.numerator;
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	287 return right.denominator * right.offset / divider;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	288 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	289 return width.solveY (data.getWidth (control, flushCache));
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	290 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	291
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	292 override protected void layout (Composite composite, bool flushCache) {
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	293 Rectangle rect = composite.getClientArea ();
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	294 int x = rect.x + marginLeft + marginWidth;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	295 int y = rect.y + marginTop + marginHeight;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	296 int width = Math.max (0, rect.width - marginLeft - 2 * marginWidth - marginRight);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	297 int height = Math.max (0, rect.height - marginTop - 2 * marginHeight - marginBottom);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	298 layout (composite, true, x, y, width, height, flushCache);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	299 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	300
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	301 Point layout (Composite composite, bool move, int x, int y, int width, int height, bool flushCache) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	302 Control [] children = composite.getChildren ();
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	303 for (int i=0; i<children.length; i++) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	304 Control child = children [i];
7 e831403a80a9 Add 'cast' to casts Frank Benoit <benoit@tionex.de> parents: 5 diff changeset	305 FormData data = cast(FormData) child.getLayoutData ();
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	306 if (data is null) child.setLayoutData (data = new FormData ());
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	307 if (flushCache) data.flushCache ();
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	308 data.cacheLeft = data.cacheRight = data.cacheTop = data.cacheBottom = null;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	309 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	310 bool [] flush = null;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	311 Rectangle [] bounds = null;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	312 int w = 0, h = 0;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	313 for (int i=0; i<children.length; i++) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	314 Control child = children [i];
7 e831403a80a9 Add 'cast' to casts Frank Benoit <benoit@tionex.de> parents: 5 diff changeset	315 FormData data = cast(FormData) child.getLayoutData ();
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	316 if (width !is DWT.DEFAULT) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	317 data.needed = false;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	318 FormAttachment left = data.getLeftAttachment (child, spacing, flushCache);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	319 FormAttachment right = data.getRightAttachment (child, spacing, flushCache);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	320 int x1 = left.solveX (width), x2 = right.solveX (width);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	321 if (data.height is DWT.DEFAULT && !data.needed) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	322 int trim = 0;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	323 //TEMPORARY CODE
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	324 if ( auto sa = cast(Scrollable)child) {
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	325 Rectangle rect = sa.computeTrim (0, 0, 0, 0);
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	326 trim = rect.width;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	327 } else {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	328 trim = child.getBorderWidth () * 2;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	329 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	330 data.cacheWidth = data.cacheHeight = -1;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	331 int currentWidth = Math.max (0, x2 - x1 - trim);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	332 data.computeSize (child, currentWidth, data.height, flushCache);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	333 if (flush is null) flush = new bool [children.length];
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	334 flush [i] = true;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	335 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	336 w = Math.max (x2, w);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	337 if (move) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	338 if (bounds is null) bounds = new Rectangle [children.length];
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	339 bounds [i] = new Rectangle (0, 0, 0, 0);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	340 bounds [i].x = x + x1;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	341 bounds [i].width = x2 - x1;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	342 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	343 } else {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	344 w = Math.max (computeWidth (child, data, flushCache), w);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	345 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	346 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	347 for (int i=0; i<children.length; i++) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	348 Control child = children [i];
7 e831403a80a9 Add 'cast' to casts Frank Benoit <benoit@tionex.de> parents: 5 diff changeset	349 FormData data = cast(FormData) child.getLayoutData ();
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	350 if (height !is DWT.DEFAULT) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	351 int y1 = data.getTopAttachment (child, spacing, flushCache).solveX (height);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	352 int y2 = data.getBottomAttachment (child, spacing, flushCache).solveX (height);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	353 h = Math.max (y2, h);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	354 if (move) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	355 bounds [i].y = y + y1;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	356 bounds [i].height = y2 - y1;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	357 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	358 } else {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	359 h = Math.max (computeHeight (child, data, flushCache), h);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	360 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	361 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	362 for (int i=0; i<children.length; i++) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	363 Control child = children [i];
7 e831403a80a9 Add 'cast' to casts Frank Benoit <benoit@tionex.de> parents: 5 diff changeset	364 FormData data = cast(FormData) child.getLayoutData ();
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	365 if (flush !is null && flush [i]) data.cacheWidth = data.cacheHeight = -1;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	366 data.cacheLeft = data.cacheRight = data.cacheTop = data.cacheBottom = null;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	367 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	368 if (move) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	369 for (int i=0; i<children.length; i++) {
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	370 children [i].setBounds (bounds [i]);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	371 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	372 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	373 w += marginLeft + marginWidth * 2 + marginRight;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	374 h += marginTop + marginHeight * 2 + marginBottom;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	375 return new Point (w, h);
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	376 }
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	377
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	378 /**
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	379 * Returns a string containing a concise, human-readable
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	380 * description of the receiver.
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	381 *
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	382 * @return a string representation of the layout
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	383 */
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	384 override public String toString () {
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	385 String string = getName ()~" {";
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	386 if (marginWidth !is 0) string ~= "marginWidth="~to!(String)(marginWidth)~" ";
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	387 if (marginHeight !is 0) string ~= "marginHeight="~to!(String)(marginHeight)~" ";
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	388 if (marginLeft !is 0) string ~= "marginLeft="~to!(String)(marginLeft)~" ";
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	389 if (marginRight !is 0) string ~= "marginRight="~to!(String)(marginRight)~" ";
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	390 if (marginTop !is 0) string ~= "marginTop="~to!(String)(marginTop)~" ";
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	391 if (marginBottom !is 0) string ~= "marginBottom="~to!(String)(marginBottom)~" ";
fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	392 if (spacing !is 0) string ~= "spacing="~to!(String)(spacing)~" ";
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	393 string = string.trim();
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	394 string ~= "}";
0 380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	395 return string;
380af2bdd8e5 Upload of whole dwt tree Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> parents: diff changeset	396 }
40 fbe68c33eeee Sync layout with dwt-linux Frank Benoit <benoit@tionex.de> parents: 8 diff changeset	397 }

Mercurial > projects > dwt-mac

annotate dwt/layout/FormLayout.d @ 156:969e7de37c3d default tip