1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
/**
* Copyright (c) 2018 Angelo ZERR.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v2.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v20.html
*
* Contributors:
* Angelo Zerr <angelo.zerr@gmail.com> - Bug 538111 - [generic editor] Extension point for ICharacterPairMatcher
*/
package org.eclipse.ui.internal.genericeditor.preferences;
import org.eclipse.core.runtime.preferences.AbstractPreferenceInitializer;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.preference.PreferenceConverter;
import org.eclipse.jface.resource.ColorRegistry;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.ui.PlatformUI;
/**
* Preference initializer for Generic Editor plug-in.
*
* @since 1.2
*/
public class GenericEditorPluginPreferenceInitializer extends AbstractPreferenceInitializer {
@Override
public void initializeDefaultPreferences() {
IPreferenceStore store = GenericEditorPreferenceConstants.getPreferenceStore();
GenericEditorPreferenceConstants.initializeDefaultValues(store);
}
public static void setThemeBasedPreferences(IPreferenceStore store, boolean fireEvent) {
ColorRegistry registry = null;
if (PlatformUI.isWorkbenchRunning())
registry = PlatformUI.getWorkbench().getThemeManager().getCurrentTheme().getColorRegistry();
setDefault(store, GenericEditorPreferenceConstants.EDITOR_MATCHING_BRACKETS_COLOR,
findRGB(registry, IGenericEditorThemeConstants.EDITOR_MATCHING_BRACKETS_COLOR, new RGB(127, 0, 85)),
fireEvent);
}
/**
* Sets the default value and fires a property change event if necessary.
*
* @param store the preference store
* @param key the preference key
* @param newValue the new value
* @param fireEvent <code>false</code> if no event should be fired
* @since 1.2
*/
private static void setDefault(IPreferenceStore store, String key, RGB newValue, boolean fireEvent) {
if (!fireEvent) {
PreferenceConverter.setDefault(store, key, newValue);
return;
}
RGB oldValue = null;
if (store.isDefault(key))
oldValue = PreferenceConverter.getDefaultColor(store, key);
PreferenceConverter.setDefault(store, key, newValue);
if (oldValue != null && !oldValue.equals(newValue))
store.firePropertyChangeEvent(key, oldValue, newValue);
}
/**
* Returns the RGB for the given key in the given color registry.
*
* @param registry the color registry
* @param key the key for the constant in the registry
* @param defaultRGB the default RGB if no entry is found
* @return RGB the RGB
* @since 1.2
*/
private static RGB findRGB(ColorRegistry registry, String key, RGB defaultRGB) {
if (registry == null)
return defaultRGB;
RGB rgb = registry.getRGB(key);
if (rgb != null)
return rgb;
return defaultRGB;
}
}
|
