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Package: ExtendedColorRegistry
ExtendedColorRegistry
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| ExtendedColorRegistry() |
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| ExtendedColorRegistry(Display) |
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| getColor(Color, Color, Object) |
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| handleDisplayDispose() |
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| hookDisplayDispose(Display) |
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| static {...} |
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Coverage
1: /**
2: * Copyright (c) 2008-2010 IBM Corporation and others.
3: *
4: * All rights reserved. This program and the accompanying materials
5: * are made available under the terms of the Eclipse Public License 2.0
6: * which accompanies this distribution, and is available at
7: * https://www.eclipse.org/legal/epl-2.0/
8: *
9: * SPDX-License-Identifier: EPL-2.0
10: *
11: * Contributors:
12: * IBM - Initial API and implementation
13: */
14: // REUSED CLASS
15: package org.eclipse.emf.edit.ui.provider;
16:
17: import java.util.ArrayList;
18: import java.util.Collection;
19: import java.util.HashMap;
20:
21: import org.eclipse.emf.common.util.URI;
22: import org.eclipse.emf.edit.provider.IItemColorProvider;
23: import org.eclipse.jface.resource.ColorDescriptor;
24: import org.eclipse.jface.resource.DeviceResourceException;
25: import org.eclipse.swt.graphics.Color;
26: import org.eclipse.swt.graphics.RGB;
27: import org.eclipse.swt.widgets.Display;
28:
29: /**
30: * A color registry for converting a color description into an actual color.
31: *
32: * @see IItemColorProvider
33: */
34: public class ExtendedColorRegistry {
35: public static final ExtendedColorRegistry INSTANCE = new ExtendedColorRegistry() {
36: @Override
37: public Color getColor(Color foregroundColor, Color backgroundColor, Object object) {
38: return ExtendedImageRegistry.getInstance(ExtendedColorRegistry.class).getColor(foregroundColor,
39: backgroundColor, object);
40: }
41: };
42:
43: protected Display display;
44: protected HashMap<Collection<?>, Color> table = new HashMap<Collection<?>, Color>(10);
45:
46: public ExtendedColorRegistry() {
47: display = Display.getCurrent();
48: hookDisplayDispose(display);
49: }
50:
51: public ExtendedColorRegistry(Display display) {
52: this.display = display;
53: hookDisplayDispose(display);
54: }
55:
56: public Color getColor(Color foregroundColor, Color backgroundColor, Object object) {
57:• if (object instanceof Color) {
58: return (Color) object;
59: } else {
60: final Collection<Object> key = new ArrayList<Object>(2);
61: key.add(foregroundColor);
62: key.add(backgroundColor);
63: key.add(object);
64:
65: Color result = table.get(key);
66:• if (result == null) {
67:• if (object instanceof ColorDescriptor) {
68: final ColorDescriptor colorDescriptor = (ColorDescriptor) object;
69: try {
70: result = colorDescriptor.createColor(display);
71: } catch (final DeviceResourceException exception) {
72: Activator.log(exception);
73: }
74:• } else if (object instanceof URI) {
75: final URI colorURI = (URI) object;
76:• if (!"color".equals(colorURI.scheme())) {
77: throw new IllegalArgumentException("Only 'color' scheme is recognized" + colorURI);
78: }
79:
80: RGB colorData;
81:• if ("rgb".equals(colorURI.authority())) {
82: final int red = Integer.parseInt(colorURI.segment(0));
83: final int green = Integer.parseInt(colorURI.segment(1));
84: final int blue = Integer.parseInt(colorURI.segment(2));
85: colorData = new RGB(red, green, blue);
86:• } else if ("hsb".equals(colorURI.authority())) {
87: final float[] hsb = new float[3];
88:• for (int i = 0; i < 3; ++i) {
89: final String segment = colorURI.segment(i);
90:• hsb[i] = "".equals(segment) || "foreground".equals(segment)
91: ? foregroundColor.getRGB().getHSB()[i]
92:• : "background".equals(segment) ? backgroundColor.getRGB().getHSB()[i]
93: : Float.parseFloat(segment);
94: }
95: colorData = new RGB(hsb[0], hsb[1], hsb[2]);
96: } else {
97: throw new IllegalArgumentException("Only 'rgb' and 'hsb' authority are recognized" + colorURI);
98: }
99:
100: try {
101: result = ColorDescriptor.createFrom(colorData).createColor(display);
102: } catch (final DeviceResourceException exception) {
103: Activator.log(exception);
104: }
105: }
106:
107:• if (result != null) {
108: table.put(key, result);
109: }
110: }
111: return result;
112: }
113: }
114:
115: protected void handleDisplayDispose() {
116:• for (final Color color : table.values()) {
117: color.dispose();
118: }
119: table = null;
120: }
121:
122: protected void hookDisplayDispose(Display display) {
123: display.disposeExec(new Runnable() {
124: @Override
125: public void run() {
126: handleDisplayDispose();
127: }
128: });
129: }
130: }