|
1
7
8 package javax.swing.plaf.synth;
9
10 import javax.swing.*;
11 import javax.swing.plaf.*;
12 import javax.swing.plaf.basic.*;
13 import javax.swing.text.View  ;
14
15 import java.awt.event.ActionEvent ;
16 import java.awt.event.ActionListener ;
17 import java.awt.Component ;
18 import java.awt.Container ;
19 import java.awt.Dimension ;
20 import java.awt.Rectangle ;
21 import java.awt.Insets ;
22 import java.awt.Color ;
23 import java.awt.Graphics ;
24 import java.awt.Font ;
25 import java.awt.FontMetrics ;
26 import java.beans.PropertyChangeEvent ;
27 import java.beans.PropertyChangeListener ;
28 import sun.swing.plaf.synth.SynthUI;
29
30
36 class SynthLabelUI extends BasicLabelUI implements SynthUI {
37 private SynthStyle style;
38
39
42 public static ComponentUI createUI(JComponent c){
43 return new SynthLabelUI ();
44 }
45
46
47 protected void installDefaults(JLabel c) {
48 updateStyle(c);
49 }
50
51 void updateStyle(JLabel c) {
52 SynthContext context = getContext(c, ENABLED);
53 style = SynthLookAndFeel.updateStyle(context, this);
54 context.dispose();
55 }
56
57 protected void uninstallDefaults(JLabel c){
58 SynthContext context = getContext(c, ENABLED);
59
60 style.uninstallDefaults(context);
61 context.dispose();
62 style = null;
63 }
64
65 public SynthContext getContext(JComponent c) {
66 return getContext(c, getComponentState(c));
67 }
68
69 private SynthContext getContext(JComponent c, int state) {
70 return SynthContext.getContext(SynthContext .class, c,
71 SynthLookAndFeel.getRegion(c), style, state);
72 }
73
74 private Region getRegion(JComponent c) {
75 return SynthLookAndFeel.getRegion(c);
76 }
77
78 private int getComponentState(JComponent c) {
79 int state = SynthLookAndFeel.getComponentState(c);
80 if (SynthLookAndFeel.selectedUI == this &&
81 state == SynthConstants.ENABLED) {
82 state = SynthLookAndFeel.selectedUIState | SynthConstants.ENABLED;
83 }
84 return state;
85 }
86
87
92 public void update(Graphics g, JComponent c) {
93 SynthContext context = getContext(c);
94
95 SynthLookAndFeel.update(context, g);
96 context.getPainter().paintLabelBackground(context,
97 g, 0, 0, c.getWidth(), c.getHeight());
98 paint(context, g);
99 context.dispose();
100 }
101
102 public void paint(Graphics g, JComponent c) {
103 SynthContext context = getContext(c);
104
105 paint(context, g);
106 context.dispose();
107 }
108
109 protected void paint(SynthContext context, Graphics g) {
110 JLabel label = (JLabel)context.getComponent();
111 Icon icon = (label.isEnabled()) ? label.getIcon() :
112 label.getDisabledIcon();
113
114 g.setColor(context.getStyle().getColor(context,
115 ColorType.TEXT_FOREGROUND));
116 g.setFont(style.getFont(context));
117 context.getStyle().getGraphicsUtils(context).paintText(
118 context, g, label.getText(), icon,
119 label.getHorizontalAlignment(), label.getVerticalAlignment(),
120 label.getHorizontalTextPosition(), label.getVerticalTextPosition(),
121 label.getIconTextGap(), label.getDisplayedMnemonicIndex(), 0);
122 }
123
124 public void paintBorder(SynthContext context, Graphics g, int x,
125 int y, int w, int h) {
126 context.getPainter().paintLabelBorder(context, g, x, y, w, h);
127 }
128
129 public Dimension getPreferredSize(JComponent c) {
130 JLabel label = (JLabel)c;
131 Icon icon = (label.isEnabled()) ? label.getIcon() :
132 label.getDisabledIcon();
133 SynthContext context = getContext(c);
134 Dimension size = context.getStyle().getGraphicsUtils(context).
135 getPreferredSize(
136 context, context.getStyle().getFont(context), label.getText(),
137 icon, label.getHorizontalAlignment(),
138 label.getVerticalAlignment(), label.getHorizontalTextPosition(),
139 label.getVerticalTextPosition(), label.getIconTextGap(),
140 label.getDisplayedMnemonicIndex());
141
142 context.dispose();
143 return size;
144 }
145
146
147 public Dimension getMinimumSize(JComponent c) {
148 JLabel label = (JLabel)c;
149 Icon icon = (label.isEnabled()) ? label.getIcon() :
150 label.getDisabledIcon();
151 SynthContext context = getContext(c);
152 Dimension size = context.getStyle().getGraphicsUtils(context).
153 getMinimumSize(
154 context, context.getStyle().getFont(context), label.getText(),
155 icon, label.getHorizontalAlignment(),
156 label.getVerticalAlignment(), label.getHorizontalTextPosition(),
157 label.getVerticalTextPosition(), label.getIconTextGap(),
158 label.getDisplayedMnemonicIndex());
159
160 context.dispose();
161 return size;
162 }
163
164 public Dimension getMaximumSize(JComponent c) {
165 JLabel label = (JLabel)c;
166 Icon icon = (label.isEnabled()) ? label.getIcon() :
167 label.getDisabledIcon();
168 SynthContext context = getContext(c);
169 Dimension size = context.getStyle().getGraphicsUtils(context).
170 getMaximumSize(
171 context, context.getStyle().getFont(context), label.getText(),
172 icon, label.getHorizontalAlignment(),
173 label.getVerticalAlignment(), label.getHorizontalTextPosition(),
174 label.getVerticalTextPosition(), label.getIconTextGap(),
175 label.getDisplayedMnemonicIndex());
176
177 context.dispose();
178 return size;
179 }
180
181
182 public void propertyChange(PropertyChangeEvent e) {
183 super.propertyChange(e);
184 if (SynthLookAndFeel.shouldUpdateStyle(e)) {
185 updateStyle((JLabel)e.getSource());
186 }
187 }
188 }
189 |
Popular Tags |
Java API By Example, From Geeks To Geeks.