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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.graphics.Rectangle;
19 import org.eclipse.swt.widgets.Control;
20 import org.eclipse.swt.widgets.Shell;
21 import org.eclipse.ui.internal.AnimationEngine;
22 import org.eclipse.ui.internal.AnimationFeedbackBase;
23
24
30 public abstract class RectangleAnimationFeedbackBase extends AnimationFeedbackBase {
31
32 private List startRects = new ArrayList ();
33 private List endRects = new ArrayList ();
34
35
42 public RectangleAnimationFeedbackBase(Shell parentShell, Rectangle start,
43 Rectangle end) {
44 super(parentShell);
45 addStartRect(start);
46 addEndRect(end);
47 }
48
49
54 public boolean jobInit(AnimationEngine engine) {
55 if (!super.jobInit(engine))
56 return false;
57
58 return startRects.size() > 0 && startRects.size() == endRects.size();
59 }
60
61 public void addStartRect(Rectangle rect) {
62 if (rect != null) {
63 startRects.add(rect);
64 }
65 }
66
67 public void addEndRect(Rectangle rect) {
68 if (rect != null) {
69 endRects.add(rect);
70 }
71 }
72
73 public void addStartRect(Control ctrl) {
74 Rectangle ctrlBounds = ctrl.getBounds();
75 Rectangle startRect = Geometry.toDisplay(ctrl.getParent(), ctrlBounds);
76 addStartRect(startRect);
77 }
78
79 public void addEndRect(Control ctrl) {
80 Rectangle ctrlBounds = ctrl.getBounds();
81 Rectangle endRect = Geometry.toDisplay(ctrl.getParent(), ctrlBounds);
82 addEndRect(endRect);
83 }
84
85 public static Rectangle interpolate(Rectangle start, Rectangle end,
86 double amount) {
87 double initialWeight = 1.0 - amount;
88
89 Rectangle result = new Rectangle((int) (start.x * initialWeight + end.x
90 * amount), (int) (start.y * initialWeight + end.y * amount),
91 (int) (start.width * initialWeight + end.width * amount),
92 (int) (start.height * initialWeight + end.height * amount));
93
94 return result;
95 }
96
97 public List getStartRects() {
98 return startRects;
99 }
100
101 public List getEndRects() {
102 return endRects;
103 }
104
105 public List getCurrentRects(double amount) {
106 List currentRects = new ArrayList ();
107 Iterator startIter = getStartRects().iterator();
108 Iterator endIter = getEndRects().iterator();
109 while (startIter.hasNext()) {
110 Rectangle start = (Rectangle) startIter.next();
111 Rectangle end = (Rectangle) endIter.next();
112
113 Rectangle curRect = interpolate(start, end, amount);
115 currentRects.add(curRect);
116 }
117 return currentRects;
118 }
119
120 }
121 |
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