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1
11 package org.eclipse.ui.internal;
12
13 import java.util.ArrayList  ;
14 import java.util.Iterator ;
15 import java.util.List ;
16
17 import org.eclipse.jface.util.Geometry;
18 import org.eclipse.swt.SWT;
19 import org.eclipse.swt.events.PaintEvent;
20 import org.eclipse.swt.events.PaintListener;
21 import org.eclipse.swt.graphics.GC;
22 import org.eclipse.swt.graphics.Image;
23 import org.eclipse.swt.graphics.Rectangle;
24 import org.eclipse.swt.widgets.Canvas;
25 import org.eclipse.swt.widgets.Composite;
26 import org.eclipse.swt.widgets.Display;
27 import org.eclipse.swt.widgets.Shell;
28 import org.eclipse.ui.internal.AnimationEngine;
29
30
38 public class RectangleAnimationImageFeedback extends
39 RectangleAnimationFeedbackBase {
40 private class ImageCanvas extends Canvas {
41 private Image image;
42
43
47 public ImageCanvas(Composite parent, int style, Image image) {
48 super(parent, style);
49 this.image = image;
50
51 addPaintListener(new PaintListener() {
52 public void paintControl(PaintEvent e) {
53 paintImage(e.gc);
54 }
55 });
56 }
57
58
61 protected void paintImage(GC gc) {
62 gc.drawImage(image, 0, 0, image.getBounds().width, image
63 .getBounds().height, 0, 0, getBounds().width,
64 getBounds().height);
65 }
66
67
70 public void dispose() {
71 super.dispose();
72 image.dispose();
73 }
74 }
75
76 private Image backingStore;
77 private Shell theShell;
78 private Display display;
79 private List controls = new ArrayList ();
80
81
82 public RectangleAnimationImageFeedback(Shell parentShell, Rectangle start,
83 Rectangle end) {
84 super(parentShell, start, end);
85 }
86
87 public void dispose() {
88 backingStore.dispose();
89 for (Iterator ctrlIter = controls.iterator(); ctrlIter.hasNext();) {
90 ImageCanvas canvas = (ImageCanvas) ctrlIter.next();
91 canvas.dispose();
92 }
93
94 theShell.setVisible(false);
95 theShell.dispose();
96 }
97
98 public void initialize(AnimationEngine engine) {
99 display = getAnimationShell().getDisplay();
100
101 Rectangle psRect = getAnimationShell().getBounds();
102 theShell = new Shell(getAnimationShell(), SWT.NO_TRIM | SWT.ON_TOP);
103 theShell.setBounds(getAnimationShell().getBounds());
104
105 backingStore = new Image(theShell.getDisplay(), psRect);
107 GC gc = new GC(display);
108 gc.copyArea(backingStore, psRect.x, psRect.y);
109 gc.dispose();
110 theShell.setBackgroundImage(backingStore);
113 theShell.setVisible(true);
114 display.update();
115
116 }
117
118
121 public boolean jobInit(AnimationEngine engine) {
122 changeCoordinates();
123 captureImages();
124 return super.jobInit(engine);
125 }
126
127 public void addStartRect(Rectangle rect) {
128 if (rect == null)
129 return;
130
131 super.addStartRect(rect);
133
134 }
135
136 public void addEndRect(Rectangle rect) {
137 if (rect != null) {
138 super.addEndRect(rect);
140 }
141 }
142
143 public void renderStep(AnimationEngine engine) {
144 Iterator ctrlIter = controls.iterator();
145 Iterator currentRects = getCurrentRects(engine.amount()).iterator();
146 while (currentRects.hasNext()) {
147 ImageCanvas canvas = (ImageCanvas) ctrlIter.next();
148 canvas.setBounds((Rectangle) currentRects.next());
149 }
150 display.update();
151
152 }
153
154 public void changeCoordinates() {
155 Iterator startRectIter = getStartRects().iterator();
156 Iterator endRectIter = getEndRects().iterator();
157 while (startRectIter.hasNext()) {
158 Rectangle startRect = (Rectangle) startRectIter.next();
159 Rectangle mapStartRect = Geometry.toControl(theShell, startRect);
160 startRect.x = mapStartRect.x;
161 startRect.y = mapStartRect.y;
162 Rectangle endRect = (Rectangle) endRectIter.next();
163 Rectangle mapEndRect = Geometry.toControl(theShell, endRect);
164 endRect.x = mapEndRect.x;
165 endRect.y = mapEndRect.y;
166 }
167 }
168
169 private void captureImages() {
170
171 for (Iterator iterator = getStartRects().iterator(); iterator.hasNext();) {
172 Rectangle rect = (Rectangle) iterator.next();
173 Image image = new Image(display, rect.width, rect.height);
174 GC gc = new GC(backingStore);
175 gc.copyArea(image, rect.x, rect.y);
176 gc.dispose();
177 ImageCanvas canvas = new ImageCanvas(theShell, SWT.BORDER
178 | SWT.NO_BACKGROUND, image);
179 controls.add(canvas);
180
181 }
182 }
183
184 }
185 |
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