1 /*
2 * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 /*
27 * To change this template, choose Tools | Templates
28 * and open the template in the editor.
29 */
30
31 package com.sun.javafx.scene.control.skin;
32
33 import javafx.beans.InvalidationListener;
34 import javafx.beans.Observable;
35 import javafx.scene.control.Label;
36 import javafx.scene.control.Labeled;
37
38 import javafx.css.CssMetaData;
39 import javafx.css.StyleOrigin;
40 import java.util.ArrayList;
41 import java.util.Collections;
42 import java.util.List;
43 import javafx.css.Styleable;
44 import javafx.css.StyleableProperty;
45 import javafx.scene.layout.Region;
46
47
48 public class LabeledImpl extends Label {
49
50 public LabeledImpl(final Labeled labeled) {
51 shuttler = new Shuttler(this, labeled);
52 }
53 private final Shuttler shuttler;
54
55 private static void initialize(Shuttler shuttler, LabeledImpl labeledImpl, Labeled labeled) {
56
57 labeledImpl.setText(labeled.getText());
58 labeled.textProperty().addListener(shuttler);
59
60 labeledImpl.setGraphic(labeled.getGraphic());
61 labeled.graphicProperty().addListener(shuttler);
62
63 final List<CssMetaData<? extends Styleable, ?>> styleables = StyleableProperties.STYLEABLES_TO_MIRROR;
64
65 for(int n=0, nMax=styleables.size(); n<nMax; n++) {
66 @SuppressWarnings("unchecked")
67 final CssMetaData<Styleable,Object> styleable = (CssMetaData<Styleable,Object>)styleables.get(n);
68
69 // the Labeled isn't necessarily a Label, so skip the skin or
70 // we'll get an argument type mismatch on the invocation of the
71 // skin constructor.
72 if ("-fx-skin".equals(styleable.getProperty())) continue;
73
74 final StyleableProperty<?> fromVal = styleable.getStyleableProperty(labeled);
75 if (fromVal instanceof Observable) {
76 // listen for changes to this property
77 ((Observable)fromVal).addListener(shuttler);
78 // set this LabeledImpl's property to the same value as the Labeled.
79 final StyleOrigin origin = fromVal.getStyleOrigin();
80 if (origin == null) continue;
81 final StyleableProperty<Object> styleableProperty = styleable.getStyleableProperty(labeledImpl);
82 styleableProperty.applyStyle(origin, fromVal.getValue());
83 }
84 }
85 }
86
87 private static class Shuttler implements InvalidationListener {
88
89 private final LabeledImpl labeledImpl;
90 private final Labeled labeled;
91
92 Shuttler(LabeledImpl labeledImpl, Labeled labeled) {
93 this.labeledImpl = labeledImpl;
94 this.labeled = labeled;
95 initialize(this, labeledImpl, labeled);
96
97 }
98
99 @Override public void invalidated(Observable valueModel) {
100
101 if (valueModel == labeled.textProperty()) {
102 labeledImpl.setText(labeled.getText());
103 } else if (valueModel == labeled.graphicProperty()) {
104 // If the user set the graphic, then mirror that.
105 // Otherwise, the graphic was set via the imageUrlProperty which
106 // will be mirrored onto the labeledImpl by the next block.
107 StyleOrigin origin = ((StyleableProperty<?>)labeled.graphicProperty()).getStyleOrigin();
108 if (origin == null || origin == StyleOrigin.USER) {
109 labeledImpl.setGraphic(labeled.getGraphic());
110 }
111
112 } else if (valueModel instanceof StyleableProperty) {
113 StyleableProperty<?> styleableProperty = (StyleableProperty<?>)valueModel;
114 @SuppressWarnings("unchecked")
115 CssMetaData<Styleable,Object> cssMetaData = (CssMetaData<Styleable,Object>)styleableProperty.getCssMetaData();
116 if (cssMetaData != null) {
117 StyleOrigin origin = styleableProperty.getStyleOrigin();
118 StyleableProperty<Object> targetProperty = cssMetaData.getStyleableProperty(labeledImpl);
119 targetProperty.applyStyle(origin, styleableProperty.getValue());
120 }
121 }
122 }
123 }
124
125 /** Protected for unit test purposes */
126 static final class StyleableProperties {
127
128 static final List<CssMetaData<? extends Styleable, ?>> STYLEABLES_TO_MIRROR;
129 static {
130 //
131 // We do this as we only want to mirror the Labeled's keys,
132 // none of Parent's, otherwise all of the properties on Parent,
133 // like opacity, would be applied twice (once to the Labeled and
134 // again to the LabeledImpl).
135 //
136 // Note, however, that this subset is not the list of properties
137 // for this LabeledImpl that can be styled. For that, we want all
138 // the properites that are inherited by virtue of LabeledImpl
139 // being a Label. This allows for the LabledImpl to be styled
140 // with styles like .menu-button .label { -fx-opacity: 80%; }
141 // If just this subset were returned (by impl_CSS_STYLEABLE) then
142 // -fx-opacity (for example) would be meaningless to the Labeled.
143 //
144 final List<CssMetaData<? extends Styleable, ?>> labeledStyleables = Labeled.getClassCssMetaData();
145 final List<CssMetaData<? extends Styleable, ?>> parentStyleables = Region.getClassCssMetaData();
146 final List<CssMetaData<? extends Styleable, ?>> styleables =
147 new ArrayList<CssMetaData<? extends Styleable, ?>>(labeledStyleables);
148 styleables.removeAll(parentStyleables);
149 STYLEABLES_TO_MIRROR = Collections.unmodifiableList(styleables);
150 }
151 }
152
153 }