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
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Eclipse Public License, Version 1.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.eclipse.org/org/documents/epl-v10.php
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.ide.eclipse.adt.internal.editors.layout.properties;
import static com.android.SdkConstants.VALUE_FALSE;
import static com.android.SdkConstants.VALUE_TRUE;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Point;
import org.eclipse.wb.internal.core.DesignerPlugin;
import org.eclipse.wb.internal.core.model.property.Property;
import org.eclipse.wb.internal.core.model.property.table.PropertyTable;
import org.eclipse.wb.internal.core.utils.ui.DrawUtils;
/**
* Handle an XML property which represents booleans.
*
* Similar to the WindowBuilder PropertyEditor, but operates on Strings rather
* than Booleans (which means it is a tri-state boolean: true, false, not set)
*/
public class BooleanXmlPropertyEditor extends XmlPropertyEditor {
public static final BooleanXmlPropertyEditor INSTANCE = new BooleanXmlPropertyEditor();
private static final Image mTrueImage = DesignerPlugin.getImage("properties/true.png");
private static final Image mFalseImage = DesignerPlugin.getImage("properties/false.png");
private static final Image mNullImage =
DesignerPlugin.getImage("properties/BooleanNull.png");
private static final Image mUnknownImage =
DesignerPlugin.getImage("properties/BooleanUnknown.png");
private BooleanXmlPropertyEditor() {
}
@Override
public void paint(Property property, GC gc, int x, int y, int width, int height)
throws Exception {
Object value = property.getValue();
assert value == null || value instanceof String;
if (value == null || value instanceof String) {
String text = (String) value;
Image image;
if (VALUE_TRUE.equals(text)) {
image = mTrueImage;
} else if (VALUE_FALSE.equals(text)) {
image = mFalseImage;
} else if (text == null) {
image = mNullImage;
} else {
// Probably something like a reference, e.g. @boolean/foo
image = mUnknownImage;
}
// draw image
DrawUtils.drawImageCV(gc, image, x, y, height);
// prepare new position/width
int imageWidth = image.getBounds().width + 2;
width -= imageWidth;
// draw text
if (text != null) {
x += imageWidth;
DrawUtils.drawStringCV(gc, text, x, y, width, height);
}
}
}
@Override
public boolean activate(PropertyTable propertyTable, Property property, Point location)
throws Exception {
// check that user clicked on image
if (location == null || location.x < mTrueImage.getBounds().width + 2) {
cycleValue(property);
}
// don't activate
return false;
}
@Override
public void doubleClick(Property property, Point location) throws Exception {
cycleValue(property);
}
/**
* Cycles through the values
*/
private void cycleValue(Property property) throws Exception {
Object value = property.getValue();
if (value == null || value instanceof String) {
// Cycle null => true => false => null
String text = (String) value;
if (VALUE_TRUE.equals(text)) {
property.setValue(VALUE_FALSE);
} else if (VALUE_FALSE.equals(text)) {
property.setValue(null);
} else {
property.setValue(VALUE_TRUE);
}
} else {
assert false;
}
}
}
|
