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1 package com.opensymphony.workflow.designer.swing;
2
3 import java.awt.*;
4 import java.awt.event.ActionListener  ;
5 import java.awt.event.ActionEvent ;
6
7 import javax.swing.*;
8 import javax.swing.border.AbstractBorder ;
9
10 public class FramePanel extends JPanel
11 {
12 private JLabel titleLabel;
13 private GradientPanel gradientPanel;
14 private JPanel headerPanel;
15 private boolean isSelected;
16 private boolean closeable = false;
17
18
22 public FramePanel(Icon frameIcon, String title, JToolBar bar, JComponent content, boolean closeable)
23 {
24 super(new BorderLayout());
25 this.isSelected = false;
26 this.closeable = closeable;
27 this.titleLabel = new JLabel(title, frameIcon, SwingConstants.LEADING);
28 JPanel top = buildHeader(titleLabel, bar);
29
30 add(top, BorderLayout.NORTH);
31 if(content != null)
32 {
33 setContent(content);
34 }
35 setBorder(new ShadowBorder());
36 setSelected(true);
37 updateHeader();
38 }
39
40
44 public FramePanel(String title, JToolBar bar, JComponent c, boolean closeable)
45 {
46 this(null, title, bar, c, closeable);
47 }
48
49
53 public FramePanel(Icon icon, String title, boolean closeable)
54 {
55 this(icon, title, null, null, closeable);
56 }
57
58
61 public FramePanel(String title, boolean closeable)
62 {
63 this(null, title, null, null, closeable);
64 }
65
66
67 public Icon getFrameIcon()
68 {
69 return titleLabel.getIcon();
70 }
71
72 public void setFrameIcon(Icon icon)
73 {
74 titleLabel.setIcon(icon);
75 }
76
77 public String getTitle()
78 {
79 return titleLabel.getText();
80 }
81
82 public void setTitle(String text)
83 {
84 titleLabel.setText(text);
85 }
86
87 public void setToolBar(JToolBar bar)
88 {
89 if(bar != null)
90 {
91 bar.setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 0));
92 headerPanel.add(bar, BorderLayout.EAST);
93 }
94 }
95
96 public Component getContent()
97 {
98 return hasContent() ? getComponent(1) : null;
99 }
100
101
104 public void setContent(Component content)
105 {
106 if(hasContent())
107 {
108 remove(getContent());
109 }
110 add(content, BorderLayout.CENTER);
111 }
112
113 public boolean isSelected()
114 {
115 return isSelected;
116 }
117
118 public void setSelected(boolean selected)
119 {
120 isSelected = selected;
121 updateHeader();
122 }
123
124 private JPanel buildHeader(JLabel label, JToolBar bar)
125 {
126 gradientPanel = new GradientPanel(new BorderLayout(), getHeaderBackground());
127 label.setOpaque(false);
128
129 gradientPanel.add(label, BorderLayout.WEST);
130 gradientPanel.setBorder(BorderFactory.createEmptyBorder(3, 4, 3, 1));
131
132 headerPanel = new JPanel(new BorderLayout());
133 headerPanel.add(gradientPanel, BorderLayout.CENTER);
134 setToolBar(bar);
135 headerPanel.setBorder(new RaisedHeaderBorder());
136 headerPanel.setOpaque(false);
137 return headerPanel;
138 }
139
140 private void updateHeader()
141 {
142 gradientPanel.setBackground(getHeaderBackground());
143 gradientPanel.setOpaque(isSelected());
144 if(closeable)
145 {
146 JButton button = new JButton(new ImageIcon(getClass().getResource("/images/close.gif")));
147 button.setBorderPainted(false);
148 button.setOpaque(false);
149 button.setMargin(new Insets(0, 0, 0, 0));
150 button.addActionListener(new ActionListener ()
151 {
152 public void actionPerformed(ActionEvent e)
153 {
154 close();
155 }
156 });
157 gradientPanel.add(button, BorderLayout.EAST);
158 }
159 titleLabel.setForeground(getTextForeground(isSelected()));
160 headerPanel.repaint();
161 };
162
163 public void close()
164 {
165 if(closeable)
166 {
167 JComponent parent = (JComponent)getParent();
168 setVisible(false);
170 parent.revalidate();
171 }
172 }
173
174 public void updateUI()
175 {
176 super.updateUI();
177 if(titleLabel != null)
178 {
179 updateHeader();
180 }
181 }
182
183 private boolean hasContent()
184 {
185 return getComponentCount() > 1;
186 }
187
188 protected Color getTextForeground(boolean selected)
189 {
190 Color c = UIManager.getColor(selected ? "FramePanel.activeTitleForeground" : "FramePanel.inactiveTitleForeground");
191 if(c != null)
192 {
193 return c;
194 }
195 return UIManager.getColor(selected ? "InternalFrame.activeTitleForeground" : "Label.foreground");
196 }
197
198 protected Color getHeaderBackground()
199 {
200 Color c = UIManager.getColor("FramePanel.activeTitleBackground");
201 if(c != null)
202 return c;
203 return UIManager.getColor("InternalFrame.activeTitleBackground");
204 }
205
206
207 private static class RaisedHeaderBorder extends AbstractBorder
208 {
209 private static final Insets INSETS = new Insets(1, 1, 1, 0);
210
211 public Insets getBorderInsets(Component c)
212 {
213 return INSETS;
214 }
215
216 public void paintBorder(Component c, Graphics g, int x, int y, int w, int h)
217 {
218 g.translate(x, y);
219 g.setColor(UIManager.getColor("controlLtHighlight"));
220 g.fillRect(0, 0, w, 1);
221 g.fillRect(0, 1, 1, h - 1);
222 g.setColor(UIManager.getColor("controlShadow"));
223 g.fillRect(0, h - 1, w, h);
224 g.translate(-x, -y);
225 }
226 }
227
228 private static class ShadowBorder extends AbstractBorder
229 {
230 private static final Insets INSETS = new Insets(1, 1, 3, 3);
231
232 public Insets getBorderInsets(Component c)
233 {
234 return INSETS;
235 }
236
237 public void paintBorder(Component c, Graphics g, int x, int y, int w, int h)
238 {
239
240 Color shadow = UIManager.getColor("controlShadow");
241 Color lightShadow = new Color(shadow.getRed(), shadow.getGreen(), shadow.getBlue(), 170);
242 Color lighterShadow = new Color(shadow.getRed(), shadow.getGreen(), shadow.getBlue(), 70);
243 g.translate(x, y);
244
245 g.setColor(shadow);
246 g.fillRect(0, 0, w - 3, 1);
247 g.fillRect(0, 0, 1, h - 3);
248 g.fillRect(w - 3, 1, 1, h - 3);
249 g.fillRect(1, h - 3, w - 3, 1);
250 g.setColor(lightShadow);
252 g.fillRect(w - 3, 0, 1, 1);
253 g.fillRect(0, h - 3, 1, 1);
254 g.fillRect(w - 2, 1, 1, h - 3);
255 g.fillRect(1, h - 2, w - 3, 1);
256 g.setColor(lighterShadow);
258 g.fillRect(w - 2, 0, 1, 1);
259 g.fillRect(0, h - 2, 1, 1);
260 g.fillRect(w - 2, h - 2, 1, 1);
261 g.fillRect(w - 1, 1, 1, h - 2);
262 g.fillRect(1, h - 1, w - 2, 1);
263 g.translate(-x, -y);
264 }
265 }
266
267 private static class GradientPanel extends JPanel
268 {
269 private GradientPanel(LayoutManager lm, Color background)
270 {
271 super(lm);
272 setBackground(background);
273 }
274
275 public void paintComponent(Graphics g)
276 {
277 super.paintComponent(g);
278 if(!isOpaque())
279 {
280 return;
281 }
282 Color control = UIManager.getColor("control");
283 int width = getWidth();
284 int height = getHeight();
285
286 Graphics2D g2 = (Graphics2D)g;
287 Paint storedPaint = g2.getPaint();
288 g2.setPaint(new GradientPaint(0, 0, getBackground(), width, 0, control));
289 g2.fillRect(0, 0, width, height);
290 g2.setPaint(storedPaint);
291 }
292 }
293
294 } |
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