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comparison dwtx/ui/forms/widgets/ToggleHyperlink.d @ 75:5d489b9f966c

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Fix continue porting
author Frank Benoit <benoit@tionex.de>
date Sat, 24 May 2008 05:11:16 +0200
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children e193036d82c9
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74:dad2e11b8ae4 75:5d489b9f966c
1 /*******************************************************************************
2 * Copyright (c) 2000, 2007 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 dwtx.ui.forms.widgets.ToggleHyperlink;
14
15 import dwtx.ui.forms.widgets.AbstractHyperlink;
16
17 import dwt.DWT;
18 import dwt.accessibility.ACC;
19 import dwt.accessibility.AccessibleAdapter;
20 import dwt.accessibility.AccessibleControlAdapter;
21 import dwt.accessibility.AccessibleControlEvent;
22 import dwt.accessibility.AccessibleEvent;
23 import dwt.graphics.Color;
24 import dwt.graphics.Point;
25 import dwt.graphics.Rectangle;
26 import dwt.widgets.Composite;
27 import dwt.widgets.Event;
28 import dwt.widgets.Listener;
29 import dwtx.ui.forms.events.HyperlinkAdapter;
30 import dwtx.ui.forms.events.HyperlinkEvent;
31 import dwtx.ui.internal.forms.Messages;
32
33 import dwt.dwthelper.utils;
34
35 /**
36 * A custom selectable control that can be used to control areas that can be
37 * expanded or collapsed.
38 * <p>
39 * This is an abstract class. Subclasses are responsible for rendering the
40 * control using decoration and hover decoration color. Control should be
41 * rendered based on the current expansion state.
42 *
43 * @since 3.0
44 */
45 public abstract class ToggleHyperlink : AbstractHyperlink {
46 protected int innerWidth;
47 protected int innerHeight;
48 protected bool hover;
49 package bool hover_package(){
50 return hover;
51 }
52 package bool hover_package( bool v){
53 return (hover = v);
54 }
55 private bool expanded;
56 private Color decorationColor;
57 private Color hoverColor;
58 /**
59 * Creates a control in a provided composite.
60 *
61 * @param parent
62 * the parent
63 * @param style
64 * the style
65 */
66 public this(Composite parent, int style) {
67 super(parent, style);
68 Listener listener = new class Listener {
69 public void handleEvent(Event e) {
70 switch (e.type) {
71 case DWT.MouseEnter:
72 hover=true;
73 redraw();
74 break;
75 case DWT.MouseExit:
76 hover = false;
77 redraw();
78 break;
79 case DWT.KeyDown:
80 onKeyDown(e);
81 break;
82 }
83 }
84 };
85 addListener(DWT.MouseEnter, listener);
86 addListener(DWT.MouseExit, listener);
87 addListener(DWT.KeyDown, listener);
88 addHyperlinkListener(new class HyperlinkAdapter {
89 public void linkActivated(HyperlinkEvent e) {
90 setExpanded(!isExpanded());
91 }
92 });
93 initAccessible();
94 }
95 /**
96 * Sets the color of the decoration.
97 *
98 * @param decorationColor
99 */
100 public void setDecorationColor(Color decorationColor) {
101 this.decorationColor = decorationColor;
102 }
103 /**
104 * Returns the color of the decoration.
105 *
106 * @return decoration color
107 */
108 public Color getDecorationColor() {
109 return decorationColor;
110 }
111 /**
112 * Sets the hover color of decoration. Hover color will be used when mouse
113 * enters the decoration area.
114 *
115 * @param hoverColor
116 * the hover color to use
117 */
118 public void setHoverDecorationColor(Color hoverColor) {
119 this.hoverColor = hoverColor;
120 }
121 /**
122 * Returns the hover color of the decoration.
123 *
124 * @return the hover color of the decoration.
125 * @since 3.1
126 */
127 public Color getHoverDecorationColor() {
128 return hoverColor;
129 }
130
131 /**
132 * Returns the hover color of the decoration.
133 *
134 * @return the hover color of the decoration.
135 * @deprecated use <code>getHoverDecorationColor</code>
136 * @see #getHoverDecorationColor()
137 */
138 public Color geHoverDecorationColor() {
139 return hoverColor;
140 }
141 /**
142 * Computes the size of the control.
143 *
144 * @param wHint
145 * width hint
146 * @param hHint
147 * height hint
148 * @param changed
149 * if true, flush any saved layout state
150 */
151 public Point computeSize(int wHint, int hHint, bool changed) {
152 int width, height;
153 /*
154 if (wHint !is DWT.DEFAULT)
155 width = wHint;
156 else */
157 width = innerWidth + 2 * marginWidth;
158 /*
159 if (hHint !is DWT.DEFAULT)
160 height = hHint;
161 else */
162 height = innerHeight + 2 * marginHeight;
163 return new Point(width, height);
164 }
165 /**
166 * Returns the expansion state of the toggle control. When toggle is in the
167 * normal (downward) state, the value is <samp>true </samp>. Collapsed
168 * control will return <samp>false </samp>.
169 *
170 * @return <samp>false </samp> if collapsed, <samp>true </samp> otherwise.
171 */
172 public bool isExpanded() {
173 return expanded;
174 }
175 /**
176 * Sets the expansion state of the twistie control
177 *
178 * @param expanded the expansion state
179 */
180 public void setExpanded(bool expanded) {
181 this.expanded = expanded;
182 getAccessible().selectionChanged();
183 redraw();
184 }
185 private void initAccessible() {
186 getAccessible().addAccessibleListener(new class AccessibleAdapter {
187 public void getHelp(AccessibleEvent e) {
188 e.result = getToolTipText();
189 }
190 public void getName(AccessibleEvent e) {
191 String name=Messages.ToggleHyperlink_accessibleName;
192 if (null !is cast(ExpandableComposite)getParent() ) {
193 name ~= Messages.ToggleHyperlink_accessibleColumn ~ (cast(ExpandableComposite)getParent()).getText();
194 int index = name.indexOf('&');
195 if (index !is -1) {
196 name = name.substring(0, index) + name.substring(index + 1);
197 }
198 }
199 e.result = name;
200 }
201 public void getDescription(AccessibleEvent e) {
202 getName(e);
203 }
204 });
205 getAccessible().addAccessibleControlListener(
206 new class AccessibleControlAdapter {
207 public void getChildAtPoint(AccessibleControlEvent e) {
208 Point testPoint = toControl(new Point(e.x, e.y));
209 if (getBounds().contains(testPoint)) {
210 e.childID = ACC.CHILDID_SELF;
211 }
212 }
213 public void getLocation(AccessibleControlEvent e) {
214 Rectangle location = getBounds();
215 Point pt = toDisplay(new Point(location.x, location.y));
216 e.x = pt.x;
217 e.y = pt.y;
218 e.width = location.width;
219 e.height = location.height;
220 }
221 public void getSelection (AccessibleControlEvent e) {
222 if (this.outer.getSelection())
223 e.childID = ACC.CHILDID_SELF;
224 }
225
226 public void getFocus (AccessibleControlEvent e) {
227 if (this.outer.getSelection())
228 e.childID = ACC.CHILDID_SELF;
229 }
230 public void getChildCount(AccessibleControlEvent e) {
231 e.detail = 0;
232 }
233 public void getRole(AccessibleControlEvent e) {
234 e.detail = ACC.ROLE_TREE;
235 }
236 public void getState(AccessibleControlEvent e) {
237 int state = ACC.STATE_FOCUSABLE;
238 if (this.outer.getSelection())
239 state |= ACC.STATE_FOCUSED;
240 state |= this.outer.isExpanded()
241 ? ACC.STATE_EXPANDED
242 : ACC.STATE_COLLAPSED;
243 e.detail = state;
244 }
245 });
246 }
247 private void onKeyDown(Event e) {
248 if (e.keyCodeisDWT.ARROW_RIGHT) {
249 // expand if collapsed
250 if (!isExpanded()) {
251 handleActivate(e);
252 }
253 e.doit=false;
254 }
255 else if (e.keyCodeisDWT.ARROW_LEFT) {
256 // collapse if expanded
257 if (isExpanded()) {
258 handleActivate(e);
259 }
260 e.doit=false;
261 }
262 }
263 }