129
|
1 /*******************************************************************************
|
|
2 * Copyright (c) 2008 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.jface.internal.text.InformationControlReplacer;
|
|
14
|
131
|
15 import dwtx.jface.internal.text.NonDeletingPositionUpdater; // packageimport
|
|
16 import dwtx.jface.internal.text.InternalAccessor; // packageimport
|
|
17 import dwtx.jface.internal.text.StickyHoverManager; // packageimport
|
|
18 import dwtx.jface.internal.text.TableOwnerDrawSupport; // packageimport
|
|
19 import dwtx.jface.internal.text.DelayedInputChangeListener; // packageimport
|
|
20
|
|
21
|
129
|
22 import dwt.dwthelper.utils;
|
|
23
|
|
24
|
|
25
|
|
26 import dwt.graphics.Point;
|
|
27 import dwt.graphics.Rectangle;
|
|
28 import dwt.widgets.Shell;
|
|
29 import dwtx.jface.text.AbstractInformationControlManager;
|
|
30 import dwtx.jface.text.AbstractReusableInformationControlCreator;
|
|
31 import dwtx.jface.text.DefaultInformationControl;
|
|
32 import dwtx.jface.text.IInformationControl;
|
|
33 import dwtx.jface.text.IInformationControlCreator;
|
|
34 import dwtx.jface.text.IInformationControlExtension2;
|
|
35 import dwtx.jface.text.IInformationControlExtension3;
|
|
36 import dwtx.jface.util.Geometry;
|
|
37
|
|
38
|
|
39 /**
|
|
40 * An information control replacer can replace an
|
|
41 * {@link AbstractInformationControlManager}'s control.
|
|
42 *
|
|
43 * @see AbstractInformationControlManager#setInformationControlReplacer(InformationControlReplacer)
|
|
44 * @since 3.4
|
|
45 */
|
|
46 public class InformationControlReplacer : AbstractInformationControlManager {
|
|
47
|
|
48 /**
|
|
49 * Minimal width in pixels.
|
|
50 */
|
|
51 private static final int MIN_WIDTH= 80;
|
|
52 /**
|
|
53 * Minimal height in pixels.
|
|
54 */
|
|
55 private static final int MIN_HEIGHT= 50;
|
|
56
|
|
57 /**
|
|
58 * Default control creator.
|
|
59 */
|
|
60 protected static class DefaultInformationControlCreator : AbstractReusableInformationControlCreator {
|
|
61 public IInformationControl doCreateInformationControl(Shell shell) {
|
|
62 return new DefaultInformationControl(shell, true);
|
|
63 }
|
|
64 }
|
|
65
|
|
66 private bool fIsReplacing;
|
|
67 private Object fReplacableInformation;
|
|
68 private bool fDelayedInformationSet;
|
|
69 private Rectangle fReplaceableArea;
|
|
70 private Rectangle fContentBounds;
|
|
71
|
|
72
|
|
73 /**
|
|
74 * Creates a new information control replacer.
|
|
75 *
|
|
76 * @param creator the default information control creator
|
|
77 */
|
|
78 public InformationControlReplacer(IInformationControlCreator creator) {
|
|
79 super(creator);
|
|
80 takesFocusWhenVisible(false);
|
|
81 }
|
|
82
|
|
83 /**
|
|
84 * Replace the information control.
|
|
85 *
|
|
86 * @param informationPresenterControlCreator the information presenter control creator
|
|
87 * @param contentBounds the bounds of the content area of the information control
|
|
88 * @param information the information to show
|
|
89 * @param subjectArea the subject area
|
|
90 * @param takeFocus <code>true</code> iff the replacing information control should take focus
|
|
91 */
|
|
92 public void replaceInformationControl(IInformationControlCreator informationPresenterControlCreator, Rectangle contentBounds, Object information, final Rectangle subjectArea, bool takeFocus) {
|
|
93
|
|
94 try {
|
|
95 fIsReplacing= true;
|
|
96 if (! fDelayedInformationSet)
|
|
97 fReplacableInformation= information;
|
|
98 else
|
|
99 takeFocus= true; // delayed input has been set, so the original info control must have been focused
|
|
100 fContentBounds= contentBounds;
|
|
101 fReplaceableArea= subjectArea;
|
|
102
|
|
103 setCustomInformationControlCreator(informationPresenterControlCreator);
|
|
104
|
|
105 takesFocusWhenVisible(takeFocus);
|
|
106
|
|
107 showInformation();
|
|
108 } finally {
|
|
109 fIsReplacing= false;
|
|
110 fReplacableInformation= null;
|
|
111 fDelayedInformationSet= false;
|
|
112 fReplaceableArea= null;
|
|
113 setCustomInformationControlCreator(null);
|
|
114 }
|
|
115 }
|
|
116
|
|
117 /*
|
|
118 * @see dwtx.jface.text.AbstractInformationControlManager#computeInformation()
|
|
119 */
|
|
120 protected void computeInformation() {
|
|
121 if (fIsReplacing && fReplacableInformation !is null) {
|
|
122 setInformation(fReplacableInformation, fReplaceableArea);
|
|
123 return;
|
|
124 }
|
|
125
|
|
126 if (DEBUG)
|
|
127 System.out.println("InformationControlReplacer: no active replaceable"); //$NON-NLS-1$
|
|
128 }
|
|
129
|
|
130 /**
|
|
131 * Opens the information control with the given information and the specified
|
|
132 * subject area. It also activates the information control closer.
|
|
133 *
|
|
134 * @param subjectArea the information area
|
|
135 * @param information the information
|
|
136 */
|
|
137 public void showInformationControl(Rectangle subjectArea, Object information) {
|
|
138 IInformationControl informationControl= getInformationControl();
|
|
139
|
|
140 Rectangle controlBounds= fContentBounds;
|
|
141 if (informationControl instanceof IInformationControlExtension3) {
|
|
142 IInformationControlExtension3 iControl3= (IInformationControlExtension3) informationControl;
|
|
143 Rectangle trim= iControl3.computeTrim();
|
|
144 controlBounds= Geometry.add(controlBounds, trim);
|
|
145
|
|
146 /*
|
|
147 * Ensure minimal size. Interacting with a tiny information control
|
|
148 * (resizing, selecting text) would be a pain.
|
|
149 */
|
|
150 controlBounds.width= Math.max(controlBounds.width, MIN_WIDTH);
|
|
151 controlBounds.height= Math.max(controlBounds.height, MIN_HEIGHT);
|
|
152
|
|
153 getInternalAccessor().cropToClosestMonitor(controlBounds);
|
|
154 }
|
|
155
|
|
156 Point location= Geometry.getLocation(controlBounds);
|
|
157 Point size= Geometry.getSize(controlBounds);
|
|
158
|
|
159 // Caveat: some IInformationControls fail unless setSizeConstraints(..) is called with concrete values
|
|
160 informationControl.setSizeConstraints(size.x, size.y);
|
|
161
|
|
162 if (informationControl instanceof IInformationControlExtension2)
|
|
163 ((IInformationControlExtension2) informationControl).setInput(information);
|
|
164 else
|
|
165 informationControl.setInformation(information.toString());
|
|
166
|
|
167 informationControl.setLocation(location);
|
|
168 informationControl.setSize(size.x, size.y);
|
|
169
|
|
170 showInformationControl(subjectArea);
|
|
171 }
|
|
172
|
|
173 /*
|
|
174 * @see dwtx.jface.text.AbstractInformationControlManager#hideInformationControl()
|
|
175 */
|
|
176 public void hideInformationControl() {
|
|
177 super.hideInformationControl();
|
|
178 }
|
|
179
|
|
180 /**
|
|
181 * @param input the delayed input, or <code>null</code> to request cancellation
|
|
182 */
|
|
183 public void setDelayedInput(Object input) {
|
|
184 fReplacableInformation= input;
|
|
185 if (! isReplacing()) {
|
|
186 fDelayedInformationSet= true;
|
|
187 } else if (getCurrentInformationControl2() instanceof IInformationControlExtension2) {
|
|
188 ((IInformationControlExtension2) getCurrentInformationControl2()).setInput(input);
|
|
189 } else if (getCurrentInformationControl2() !is null) {
|
|
190 getCurrentInformationControl2().setInformation(input.toString());
|
|
191 }
|
|
192 }
|
|
193
|
|
194 /**
|
|
195 * Tells whether the replacer is currently replacing another information control.
|
|
196 *
|
|
197 * @return <code>true</code> while code from {@link #replaceInformationControl(IInformationControlCreator, Rectangle, Object, Rectangle, bool)} is run
|
|
198 */
|
|
199 public bool isReplacing() {
|
|
200 return fIsReplacing;
|
|
201 }
|
|
202
|
|
203 /**
|
|
204 * @return the current information control, or <code>null</code> if none available
|
|
205 */
|
|
206 public IInformationControl getCurrentInformationControl2() {
|
|
207 return getInternalAccessor().getCurrentInformationControl();
|
|
208 }
|
|
209
|
|
210 /**
|
|
211 * The number of pixels to blow up the keep-up zone.
|
|
212 *
|
|
213 * @return the margin in pixels
|
|
214 */
|
|
215 public int getKeepUpMargin() {
|
|
216 return 15;
|
|
217 }
|
|
218 }
|