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
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
/**
* $RCSfile$
* $Revision$
* $Date$
*
* Copyright (C) 2004 Jive Software. All rights reserved.
*
* This software is published under the terms of the GNU Public License (GPL),
* a copy of which is included in this distribution.
*/
package org.jivesoftware.messenger.launcher;
import java.awt.*;
import java.awt.event.MouseEvent;
import java.net.URL;
import java.util.Hashtable;
import javax.swing.*;
/**
* <code>GraphicsUtils</code> class defines common user-interface related utility
* functions.
*/
public final class GraphicUtils {
private static final Insets HIGHLIGHT_INSETS = new Insets(1, 1, 1, 1);
public static final Color SELECTION_COLOR = new java.awt.Color(166, 202, 240);
public static final Color TOOLTIP_COLOR = new java.awt.Color(166, 202, 240);
protected final static Component component = new Component() {
};
protected final static MediaTracker tracker = new MediaTracker(component);
private static Hashtable imageCache = new Hashtable();
private GraphicUtils() {
}
/**
* Sets the location of the specified window so that it is centered on screen.
*
* @param window The window to be centered.
*/
public static void centerWindowOnScreen(Window window) {
final Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
final Dimension size = window.getSize();
if (size.height > screenSize.height) {
size.height = screenSize.height;
}
if (size.width > screenSize.width) {
size.width = screenSize.width;
}
window.setLocation((screenSize.width - size.width) / 2,
(screenSize.height - size.height) / 2);
}
/**
* Draws a single-line highlight border rectangle.
*
* @param g The graphics context to use for drawing.
* @param x The left edge of the border.
* @param y The top edge of the border.
* @param width The width of the border.
* @param height The height of the border.
* @param raised <code>true</code> if the border is to be drawn raised,
* <code>false</code> if lowered.
* @param shadow The shadow color for the border.
* @param highlight The highlight color for the border.
* @see javax.swing.border.EtchedBorder
* @see javax.swing.plaf.basic.BasicGraphicsUtils#drawEtchedRect
*/
public static void drawHighlightBorder(Graphics g, int x, int y,
int width, int height, boolean raised,
Color shadow, Color highlight) {
final Color oldColor = g.getColor();
g.translate(x, y);
g.setColor(raised ? highlight : shadow);
g.drawLine(0, 0, width - 2, 0);
g.drawLine(0, 1, 0, height - 2);
g.setColor(raised ? shadow : highlight);
g.drawLine(width - 1, 0, width - 1, height - 1);
g.drawLine(0, height - 1, width - 2, height - 1);
g.translate(-x, -y);
g.setColor(oldColor);
}
/**
* Return the amount of space taken up by a highlight border drawn by
* <code>drawHighlightBorder()</code>.
*
* @return The <code>Insets</code> needed for the highlight border.
* @see #drawHighlightBorder
*/
public static Insets getHighlightBorderInsets() {
return HIGHLIGHT_INSETS;
}
public static ImageIcon createImageIcon(Image image) {
if (image == null) {
return null;
}
synchronized (tracker) {
tracker.addImage(image, 0);
try {
tracker.waitForID(0, 0);
} catch (InterruptedException e) {
System.out.println("INTERRUPTED while loading Image");
}
tracker.removeImage(image, 0);
}
return new ImageIcon(image);
}
/**
* Returns a point where the given popup menu should be shown. The
* point is calculated by adjusting the X and Y coordinates from the
* given mouse event so that the popup menu will not be clipped by
* the screen boundaries.
*
* @param popup the popup menu
* @param event the mouse event
* @return the point where the popup menu should be shown
*/
public static Point getPopupMenuShowPoint(JPopupMenu popup, MouseEvent event) {
Component source = (Component) event.getSource();
Point topLeftSource = source.getLocationOnScreen();
Point ptRet = getPopupMenuShowPoint(popup,
topLeftSource.x + event.getX(),
topLeftSource.y + event.getY());
ptRet.translate(-topLeftSource.x, -topLeftSource.y);
return ptRet;
}
/**
* Returns a point where the given popup menu should be shown. The
* point is calculated by adjusting the X and Y coordinates so that
* the popup menu will not be clipped by the screen boundaries.
*
* @param popup the popup menu
* @param x the x position in screen coordinate
* @param y the y position in screen coordinates
* @return the point where the popup menu should be shown in screen
* coordinates
*/
public static Point getPopupMenuShowPoint(JPopupMenu popup, int x, int y) {
Dimension sizeMenu = popup.getPreferredSize();
Point bottomRightMenu = new Point(x + sizeMenu.width, y + sizeMenu.height);
Rectangle[] screensBounds = getScreenBounds();
int n = screensBounds.length;
for (int i = 0; i < n; i++) {
Rectangle screenBounds = screensBounds[i];
if (screenBounds.x <= x && x <= (screenBounds.x + screenBounds.width)) {
Dimension sizeScreen = screenBounds.getSize();
sizeScreen.height -= 32; // Hack to help prevent menu being clipped by Windows/Linux/Solaris Taskbar.
int xOffset = 0;
if (bottomRightMenu.x > (screenBounds.x + sizeScreen.width))
xOffset = -sizeMenu.width;
int yOffset = 0;
if (bottomRightMenu.y > (screenBounds.y + sizeScreen.height))
yOffset = sizeScreen.height - bottomRightMenu.y;
return new Point(x + xOffset, y + yOffset);
}
}
return new Point(x, y); // ? that would mean that the top left point was not on any screen.
}
/**
* Centers the window over a component (usually another window).
* The window must already have been sized.
*/
public static void centerWindowOnComponent(Window window, Component over) {
if ((over == null) || !over.isShowing()) {
centerWindowOnScreen(window);
return;
}
Point parentLocation = over.getLocationOnScreen();
Dimension parentSize = over.getSize();
Dimension size = window.getSize();
// Center it.
int x = parentLocation.x + (parentSize.width - size.width) / 2;
int y = parentLocation.y + (parentSize.height - size.height) / 2;
// Now, make sure it's onscreen
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
// This doesn't actually work on the Mac, where the screen
// doesn't necessarily start at 0,0
if (x + size.width > screenSize.width)
x = screenSize.width - size.width;
if (x < 0)
x = 0;
if (y + size.height > screenSize.height)
y = screenSize.height - size.height;
if (y < 0)
y = 0;
window.setLocation(x, y);
}
/**
* @return returns true if the component of one of its child has the focus
*/
public static boolean isAncestorOfFocusedComponent(Component c) {
if (c.hasFocus()) {
return true;
} else {
if (c instanceof Container) {
Container cont = (Container) c;
int n = cont.getComponentCount();
for (int i = 0; i < n; i++) {
Component child = cont.getComponent(i);
if (isAncestorOfFocusedComponent(child))
return true;
}
}
}
return false;
}
/**
* Returns the first component in the tree of <code>c</code> that can accept
* the focus.
*
* @param c the root of the component hierarchy to search
* @see #focusComponentOrChild
* @deprecated replaced by {@link #getFocusableComponentOrChild(Component, boolean)}
*/
public static Component getFocusableComponentOrChild(Component c) {
return getFocusableComponentOrChild(c, false);
}
/**
* Returns the first component in the tree of <code>c</code> that can accept
* the focus.
*
* @param c the root of the component hierarchy to search
* @param deepest if <code>deepest</code> is true the method will return the first and deepest component that can accept the
* focus. For example, if both a child and its parent are focusable and <code>deepest</code> is true, the child is
* returned.
* @see #focusComponentOrChild
*/
public static Component getFocusableComponentOrChild(Component c, boolean deepest) {
if (c != null && c.isEnabled() && c.isVisible()) {
if (c instanceof Container) {
Container cont = (Container) c;
if (deepest == false) { // first one is a good one
if (c instanceof JComponent) {
JComponent jc = (JComponent) c;
if (jc.isRequestFocusEnabled()) {
return jc;
}
}
}
int n = cont.getComponentCount();
for (int i = 0; i < n; i++) {
Component child = cont.getComponent(i);
Component focused = getFocusableComponentOrChild(child, deepest);
if (focused != null) {
return focused;
}
}
if (c instanceof JComponent) {
if (deepest == true) {
JComponent jc = (JComponent) c;
if (jc.isRequestFocusEnabled()) {
return jc;
}
}
} else {
return c;
}
}
}
return null;
}
/**
* Puts the focus on the first component in the tree of <code>c</code> that
* can accept the focus.
*
* @see #getFocusableComponentOrChild
*/
public static Component focusComponentOrChild(Component c) {
return focusComponentOrChild(c, false);
}
/**
* Puts the focus on the first component in the tree of <code>c</code> that
* can accept the focus.
*
* @param c the root of the component hierarchy to search
* @param deepest if <code>deepest</code> is true the method will focus the first and deepest component that can
* accept the focus.
* For example, if both a child and its parent are focusable and <code>deepest</code> is true, the child is focused.
* @see #getFocusableComponentOrChild
*/
public static Component focusComponentOrChild(Component c, boolean deepest) {
final Component focusable = getFocusableComponentOrChild(c, deepest);
if (focusable != null) {
focusable.requestFocus();
}
return focusable;
}
/**
* Loads an {@link Image} named <code>imageName</code> as a resource
* relative to the Class <code>cls</code>. If the <code>Image</code> can
* not be loaded, then <code>null</code> is returned. Images loaded here
* will be added to an internal cache based upon the full {@link URL} to
* their location.
* <p/>
* <em>This method replaces legacy code from JDeveloper 3.x and earlier.</em>
*
* @see Class#getResource(String)
* @see Toolkit#createImage(URL)
*/
public static Image loadFromResource(String imageName, Class cls) {
try {
final URL url = cls.getResource(imageName);
if (url == null) {
return null;
}
Image image = (Image) imageCache.get(url.toString());
if (image == null) {
image = Toolkit.getDefaultToolkit().createImage(url);
imageCache.put(url.toString(), image);
}
return image;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
public static Rectangle[] getScreenBounds() {
GraphicsEnvironment graphicsEnvironment = GraphicsEnvironment.getLocalGraphicsEnvironment();
final GraphicsDevice[] screenDevices = graphicsEnvironment.getScreenDevices();
Rectangle[] screenBounds = new Rectangle[screenDevices.length];
for (int i = 0; i < screenDevices.length; i++) {
GraphicsDevice screenDevice = screenDevices[i];
final GraphicsConfiguration defaultConfiguration = screenDevice.getDefaultConfiguration();
screenBounds[i] = defaultConfiguration.getBounds();
}
return screenBounds;
}
public static final void makeSameSize(JComponent[] comps) {
if (comps.length == 0) {
return;
}
int max = 0;
for (int i = 0; i < comps.length; i++) {
int w = comps[i].getPreferredSize().width;
max = w > max ? w : max;
}
Dimension dim = new Dimension(max, comps[0].getPreferredSize().height);
for (int i = 0; i < comps.length; i++) {
comps[i].setPreferredSize(dim);
}
}
/**
* Return the hexidecimal color from a java.awt.Color
*
* @param c
* @return hexadecimal string
*/
public static final String toHTMLColor(Color c) {
int color = c.getRGB();
color |= 0xff000000;
String s = Integer.toHexString(color);
return s.substring(2);
}
public static final String createToolTip(String text, int width) {
final String htmlColor = toHTMLColor(TOOLTIP_COLOR);
final String toolTip = "<html><table width=" + width + " bgColor=" + htmlColor + "><tr><td><b>" + text + "</b></td></tr></table></table>";
return toolTip;
}
public static final String createToolTip(String text) {
final String htmlColor = toHTMLColor(TOOLTIP_COLOR);
final String toolTip = "<html><table bgColor=" + htmlColor + "><tr><td><b>" + text + "</b></td></tr></table></table>";
return toolTip;
}
}