Mercurial > projects > dwt2

comparison org.eclipse.draw2d/src/org/eclipse/draw2d/text/FlowAdapter.d @ 12:bc29606a740c

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added dwt-addons in original directory structure of eclipse.org
author Frank Benoit <benoit@tionex.de>
date Sat, 14 Mar 2009 18:23:29 +0100
parents
children dbfb303e8fb0
comparison
equal deleted inserted replaced
11:43904fec5dca 12:bc29606a740c
1 /*******************************************************************************
2 * Copyright (c) 2005 IBM Corporation and others.
3 * All rights reserved. This program and the accompanying materials
4 * are made available under the terms of the Eclipse Public License v1.0
5 * which accompanies this distribution, and is available at
6 * http://www.eclipse.org/legal/epl-v10.html
7 *
8 * Contributors:
9 * IBM Corporation - initial API and implementation
10 * Port to the D programming language:
11 * Frank Benoit <benoit@tionex.de>
12 *******************************************************************************/
13 module org.eclipse.draw2d.text.FlowAdapter;
14
15 import java.lang.all;
16
17 import org.eclipse.draw2d.IFigure;
18 import org.eclipse.draw2d.geometry.Dimension;
19 import org.eclipse.draw2d.geometry.Rectangle;
20 import org.eclipse.draw2d.text.FlowFigure;
21 import org.eclipse.draw2d.text.BidiProcessor;
22 import org.eclipse.draw2d.text.FlowFigureLayout;
23 import org.eclipse.draw2d.text.FlowContext;
24 import org.eclipse.draw2d.text.ContentBox;
25 import org.eclipse.draw2d.text.BidiInfo;
26 import org.eclipse.draw2d.text.BidiChars;
27
28
29 /**
30 * Adapts non-flow figures for use within a parent hierarchy requiring flow figures.
31 * Normal draw2d figures can be added as children. If a normal LayoutManager is set, the
32 * children will be positioned by that layout manager. The size of this figure within
33 * the flow will be determined by its preferred size.
34 * <p>
35 * WARNING: This class is not intended to be subclassed by clients.
36 *
37 * @author Pratik Shah
38 * @since 3.1
39 */
40 public class FlowAdapter
41 : FlowFigure
42 {
43
44 private FlowContext context;
45 private FigureBox box;
46
47 public this(){
48 box = new FigureBox();
49 }
50 /**
51 * This FlowFigure contributes an Object Replacement Character.
52 * @see FlowFigure#contributeBidi(BidiProcessor)
53 */
54 protected void contributeBidi(BidiProcessor proc) {
55 box.setBidiLevel(-1);
56 // contributes a single object replacement char
57 proc.add(this, BidiChars.OBJ);
58 }
59
60 /**
61 * @return <code>null</code>
62 * @see org.eclipse.draw2d.text.FlowFigure#createDefaultFlowLayout()
63 */
64 protected FlowFigureLayout createDefaultFlowLayout() {
65 return null;
66 }
67
68 /**
69 * Sizes the content box to be big enough to display all figures. Wraps to the next line
70 * if there is not enough room on the current one.
71 * @see org.eclipse.draw2d.Figure#layout()
72 */
73 protected void layout() {
74 int wHint = context.getRemainingLineWidth();
75 if (wHint is Integer.MAX_VALUE)
76 wHint = -1;
77 Dimension prefSize = getPreferredSize(wHint, -1);
78 if (context.isCurrentLineOccupied()
79 && prefSize.width > context.getRemainingLineWidth()) {
80 context.endLine();
81 prefSize = getPreferredSize(context.getRemainingLineWidth(), -1);
82 }
83 box.setSize(prefSize);
84 context.addToCurrentLine(box);
85 }
86
87 /**
88 * Updates the bounds of this figure to match that of its content box, and lays out this
89 * figure's children.
90 * @see FlowFigure#postValidate()
91 */
92 public void postValidate() {
93 setBounds(new Rectangle(box.getX(), box.getBaseline() - box.ascent,
94 box.width, box.ascent));
95 super.layout();
96 for (Iterator itr = getChildren().iterator(); itr.hasNext();)
97 (cast(IFigure)itr.next()).validate();
98 }
99
100 /**
101 * Sets the bidi level of the content box associated with this Figure
102 * @see FlowFigure#setBidiInfo(BidiInfo)
103 */
104 public void setBidiInfo(BidiInfo info) {
105 box.setBidiLevel(info.levelInfo[0]);
106 }
107
108 /**
109 * @see org.eclipse.draw2d.IFigure#setBounds(org.eclipse.draw2d.geometry.Rectangle)
110 */
111 public void setBounds(Rectangle rect) {
112 int x = bounds.x,
113 y = bounds.y;
114
115 bool resize = (rect.width !is bounds.width) || (rect.height !is bounds.height),
116 translate = (rect.x !is x) || (rect.y !is y);
117
118 if ((resize || translate) && isVisible())
119 erase();
120 if (translate) {
121 int dx = rect.x - x;
122 int dy = rect.y - y;
123 primTranslate(dx, dy);
124 }
125
126 bounds.width = rect.width;
127 bounds.height = rect.height;
128
129 if (translate || resize) {
130 fireFigureMoved();
131 repaint();
132 }
133 }
134
135 /**
136 * @see FlowFigure#setFlowContext(FlowContext)
137 */
138 public void setFlowContext(FlowContext flowContext) {
139 context = flowContext;
140 }
141
142 /**
143 * Do not validate children.
144 * @see org.eclipse.draw2d.IFigure#validate()
145 */
146 public void validate() {
147 if (isValid())
148 return;
149 setValid(true);
150 layout();
151 }
152
153 private class FigureBox : ContentBox {
154 private int ascent;
155 public bool containsPoint(int x, int y) {
156 return this.outer.containsPoint(x, y);
157 }
158 public int getAscent() {
159 return ascent;
160 }
161 public int getDescent() {
162 return 0;
163 }
164 public void setSize(Dimension size) {
165 ascent = size.height;
166 width = size.width;
167 }
168 }
169
170 }