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1
7
8 package javax.swing.plaf.synth;
9
10 import java.awt.*;
11 import java.awt.geom.AffineTransform  ;
12 import java.awt.event.*;
13 import javax.swing.*;
14 import javax.swing.event.*;
15 import javax.swing.plaf.*;
16 import javax.swing.plaf.basic.BasicProgressBarUI ;
17 import java.beans.PropertyChangeListener ;
18 import java.beans.PropertyChangeEvent ;
19 import java.io.Serializable ;
20 import sun.swing.plaf.synth.SynthUI;
21 import com.sun.java.swing.SwingUtilities2;
22
23
29 class SynthProgressBarUI extends BasicProgressBarUI implements SynthUI,
30 PropertyChangeListener {
31 private SynthStyle style;
32
33 private int progressPadding;
34
35 public static ComponentUI createUI(JComponent x) {
36 return new SynthProgressBarUI ();
37 }
38
39 protected void installListeners() {
40 super.installListeners();
41 progressBar.addPropertyChangeListener(this);
42 }
43
44 protected void uninstallListeners() {
45 super.uninstallListeners();
46 progressBar.removePropertyChangeListener(this);
47 }
48
49 protected void installDefaults() {
50 updateStyle(progressBar);
51 }
52
53 private void updateStyle(JProgressBar c) {
54 SynthContext context = getContext(c, ENABLED);
55 SynthStyle oldStyle = style;
56 style = SynthLookAndFeel.updateStyle(context, this);
57 if (style != oldStyle) {
58 setCellLength(style.getInt(context, "ProgressBar.cellLength", 1));
59 setCellSpacing(style.getInt(context, "ProgressBar.cellSpacing", 0));
60 progressPadding = style.getInt(context,
61 "ProgressBar.progressPadding", 0);
62 }
63 context.dispose();
64 }
65
66 protected void uninstallDefaults() {
67 SynthContext context = getContext(progressBar, ENABLED);
68
69 style.uninstallDefaults(context);
70 context.dispose();
71 style = null;
72 }
73
74 public SynthContext getContext(JComponent c) {
75 return getContext(c, getComponentState(c));
76 }
77
78 private SynthContext getContext(JComponent c, int state) {
79 return SynthContext.getContext(SynthContext .class, c,
80 SynthLookAndFeel.getRegion(c), style, state);
81 }
82
83 private Region getRegion(JComponent c) {
84 return SynthLookAndFeel.getRegion(c);
85 }
86
87 private int getComponentState(JComponent c) {
88 return SynthLookAndFeel.getComponentState(c);
89 }
90
91 public void update(Graphics g, JComponent c) {
92 SynthContext context = getContext(c);
93
94 SynthLookAndFeel.update(context, g);
95 context.getPainter().paintProgressBarBackground(context,
96 g, 0, 0, c.getWidth(), c.getHeight());
97 paint(context, g);
98 context.dispose();
99 }
100
101 public void paint(Graphics g, JComponent c) {
102 SynthContext context = getContext(c);
103
104 paint(context, g);
105 context.dispose();
106 }
107
108 protected void paint(SynthContext context, Graphics g) {
109 JProgressBar pBar = (JProgressBar)context.getComponent();
110 int x = 0, y = 0, width = 0, height = 0;
111 if (!pBar.isIndeterminate()) {
112 Insets pBarInsets = pBar.getInsets();
113 double percentComplete = pBar.getPercentComplete();
114 if (percentComplete != 0.0) {
115 if (pBar.getOrientation() == JProgressBar.HORIZONTAL) {
116 x = pBarInsets.left + progressPadding;
117 y = pBarInsets.top + progressPadding;
118 width = (int)(percentComplete * (pBar.getWidth()
119 - (pBarInsets.left + progressPadding
120 + pBarInsets.right + progressPadding)));
121 height = pBar.getHeight()
122 - (pBarInsets.top + progressPadding
123 + pBarInsets.bottom + progressPadding);
124
125 if (!SynthLookAndFeel.isLeftToRight(pBar)) {
126 x = pBar.getWidth() - pBarInsets.right - width
127 - progressPadding;
128 }
129 } else { x = pBarInsets.left + progressPadding;
131 width = pBar.getWidth()
132 - (pBarInsets.left + progressPadding
133 + pBarInsets.right + progressPadding);
134 height = (int)(percentComplete * (pBar.getHeight()
135 - (pBarInsets.top + progressPadding
136 + pBarInsets.bottom + progressPadding)));
137 y = pBar.getHeight() - pBarInsets.bottom - height
138 - progressPadding;
139
140 }
144 }
145 } else {
146 boxRect = getBox(boxRect);
147 x = boxRect.x + progressPadding;
148 y = boxRect.y + progressPadding;
149 width = boxRect.width - progressPadding - progressPadding;
150 height = boxRect.height - progressPadding - progressPadding;
151 }
152 context.getPainter().paintProgressBarForeground(context, g,
153 x, y, width, height, pBar.getOrientation());
154
155 if (pBar.isStringPainted() && !pBar.isIndeterminate()) {
156 paintText(context, g, pBar.getString());
157 }
158 }
159
160 protected void paintText(SynthContext context, Graphics g,
161 String title) {
162 Font font = context.getStyle().getFont(context);
163 FontMetrics metrics = SwingUtilities2.getFontMetrics(progressBar, g,
164 font);
165
166 if (progressBar.isStringPainted()) {
167 String pBarString = progressBar.getString();
168 Rectangle bounds = progressBar.getBounds();
169 int strLength = context.getStyle().getGraphicsUtils(context).
170 computeStringWidth(context, font, metrics, pBarString);
171
172 Rectangle textRect = new Rectangle(
174 (bounds.width / 2) - (strLength / 2),
175 (bounds.height -
176 (metrics.getAscent() + metrics.getDescent())) / 2,
177 0, 0);
178
179 if (textRect.y < 0) {
181 return;
182 }
183
184 SynthStyle style = context.getStyle();
186 g.setColor(style.getColor(context, ColorType.TEXT_FOREGROUND));
187 g.setFont(style.getFont(context));
188 style.getGraphicsUtils(context).paintText(context, g, title,
189 textRect.x, textRect.y, -1);
190 }
191 }
192
193 public void paintBorder(SynthContext context, Graphics g, int x,
194 int y, int w, int h) {
195 context.getPainter().paintProgressBarBorder(context, g, x, y, w, h);
196 }
197
198 public void propertyChange(PropertyChangeEvent e) {
199 if (SynthLookAndFeel.shouldUpdateStyle(e)) {
200 updateStyle((JProgressBar)e.getSource());
201 }
202 }
203
204 public Dimension getPreferredSize(JComponent c) {
205 Dimension size;
206 Insets border = progressBar.getInsets();
207 FontMetrics fontSizer = progressBar.getFontMetrics(
208 progressBar.getFont());
209 if (progressBar.getOrientation() == JProgressBar.HORIZONTAL) {
210 size = new Dimension(getPreferredInnerHorizontal());
211 } else {
212 size = new Dimension(getPreferredInnerVertical());
213 }
214 if (progressBar.isStringPainted()) {
216 String progString = progressBar.getString();
217 int stringHeight = fontSizer.getHeight() +
218 fontSizer.getDescent();
219 if (stringHeight > size.height) {
220 size.height = stringHeight;
221 }
222 int stringWidth = SwingUtilities2.stringWidth(
224 progressBar, fontSizer, progString);
225 if (stringWidth > size.width) {
226 size.width = stringWidth;
227 }
228 }
229
230 size.width += border.left + border.right;
231 size.height += border.top + border.bottom;
232
233 return size;
234 }
235 }
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