1 /*
2 * Copyright (c) 1998, 2005, 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 package javax.swing.plaf.metal;
27
28 import javax.swing.plaf.*;
29 import javax.swing.*;
30 import java.awt.*;
31 import java.awt.image.*;
32 import java.lang.ref.*;
33 import java.util.*;
34 import sun.swing.CachedPainter;
35 import sun.swing.ImageIconUIResource;
36
37 /**
38 * This is a dumping ground for random stuff we want to use in several places.
39 *
40 * @author Steve Wilson
41 */
42
43 class MetalUtils {
44
45 static void drawFlush3DBorder(Graphics g, Rectangle r) {
46 drawFlush3DBorder(g, r.x, r.y, r.width, r.height);
47 }
48
49 /**
50 * This draws the "Flush 3D Border" which is used throughout the Metal L&F
51 */
52 static void drawFlush3DBorder(Graphics g, int x, int y, int w, int h) {
53 g.translate( x, y);
54 g.setColor( MetalLookAndFeel.getControlDarkShadow() );
55 g.drawRect( 0, 0, w-2, h-2 );
56 g.setColor( MetalLookAndFeel.getControlHighlight() );
57 g.drawRect( 1, 1, w-2, h-2 );
58 g.setColor( MetalLookAndFeel.getControl() );
59 g.drawLine( 0, h-1, 1, h-2 );
60 g.drawLine( w-1, 0, w-2, 1 );
61 g.translate( -x, -y);
62 }
63
64 /**
65 * This draws a variant "Flush 3D Border"
66 * It is used for things like pressed buttons.
67 */
68 static void drawPressed3DBorder(Graphics g, Rectangle r) {
69 drawPressed3DBorder( g, r.x, r.y, r.width, r.height );
70 }
71
72 static void drawDisabledBorder(Graphics g, int x, int y, int w, int h) {
73 g.translate( x, y);
74 g.setColor( MetalLookAndFeel.getControlShadow() );
75 g.drawRect( 0, 0, w-1, h-1 );
76 g.translate(-x, -y);
77 }
78
79 /**
80 * This draws a variant "Flush 3D Border"
81 * It is used for things like pressed buttons.
82 */
83 static void drawPressed3DBorder(Graphics g, int x, int y, int w, int h) {
84 g.translate( x, y);
85
86 drawFlush3DBorder(g, 0, 0, w, h);
87
88 g.setColor( MetalLookAndFeel.getControlShadow() );
89 g.drawLine( 1, 1, 1, h-2 );
90 g.drawLine( 1, 1, w-2, 1 );
91 g.translate( -x, -y);
92 }
93
94 /**
95 * This draws a variant "Flush 3D Border"
96 * It is used for things like active toggle buttons.
97 * This is used rarely.
98 */
99 static void drawDark3DBorder(Graphics g, Rectangle r) {
100 drawDark3DBorder(g, r.x, r.y, r.width, r.height);
101 }
102
103 /**
104 * This draws a variant "Flush 3D Border"
105 * It is used for things like active toggle buttons.
106 * This is used rarely.
107 */
108 static void drawDark3DBorder(Graphics g, int x, int y, int w, int h) {
109 g.translate( x, y);
110
111 drawFlush3DBorder(g, 0, 0, w, h);
112
113 g.setColor( MetalLookAndFeel.getControl() );
114 g.drawLine( 1, 1, 1, h-2 );
115 g.drawLine( 1, 1, w-2, 1 );
116 g.setColor( MetalLookAndFeel.getControlShadow() );
117 g.drawLine( 1, h-2, 1, h-2 );
118 g.drawLine( w-2, 1, w-2, 1 );
119 g.translate( -x, -y);
120 }
121
122 static void drawButtonBorder(Graphics g, int x, int y, int w, int h, boolean active) {
123 if (active) {
124 drawActiveButtonBorder(g, x, y, w, h);
125 } else {
126 drawFlush3DBorder(g, x, y, w, h);
127 }
128 }
129
130 static void drawActiveButtonBorder(Graphics g, int x, int y, int w, int h) {
131 drawFlush3DBorder(g, x, y, w, h);
132 g.setColor( MetalLookAndFeel.getPrimaryControl() );
133 g.drawLine( x+1, y+1, x+1, h-3 );
134 g.drawLine( x+1, y+1, w-3, x+1 );
135 g.setColor( MetalLookAndFeel.getPrimaryControlDarkShadow() );
136 g.drawLine( x+2, h-2, w-2, h-2 );
137 g.drawLine( w-2, y+2, w-2, h-2 );
138 }
139
140 static void drawDefaultButtonBorder(Graphics g, int x, int y, int w, int h, boolean active) {
141 drawButtonBorder(g, x+1, y+1, w-1, h-1, active);
142 g.translate(x, y);
143 g.setColor( MetalLookAndFeel.getControlDarkShadow() );
144 g.drawRect( 0, 0, w-3, h-3 );
145 g.drawLine( w-2, 0, w-2, 0);
146 g.drawLine( 0, h-2, 0, h-2);
147 g.translate(-x, -y);
148 }
149
150 static void drawDefaultButtonPressedBorder(Graphics g, int x, int y, int w, int h) {
151 drawPressed3DBorder(g, x + 1, y + 1, w - 1, h - 1);
152 g.translate(x, y);
153 g.setColor(MetalLookAndFeel.getControlDarkShadow());
154 g.drawRect(0, 0, w - 3, h - 3);
155 g.drawLine(w - 2, 0, w - 2, 0);
156 g.drawLine(0, h - 2, 0, h - 2);
157 g.setColor(MetalLookAndFeel.getControl());
158 g.drawLine(w - 1, 0, w - 1, 0);
159 g.drawLine(0, h - 1, 0, h - 1);
160 g.translate(-x, -y);
161 }
162
163 /*
164 * Convenience function for determining ComponentOrientation. Helps us
165 * avoid having Munge directives throughout the code.
166 */
167 static boolean isLeftToRight( Component c ) {
168 return c.getComponentOrientation().isLeftToRight();
169 }
170
171 static int getInt(Object key, int defaultValue) {
172 Object value = UIManager.get(key);
173
174 if (value instanceof Integer) {
175 return ((Integer)value).intValue();
176 }
177 if (value instanceof String) {
178 try {
179 return Integer.parseInt((String)value);
180 } catch (NumberFormatException nfe) {}
181 }
182 return defaultValue;
183 }
184
185 //
186 // Ocean specific stuff.
187 //
188 /**
189 * Draws a radial type gradient. The gradient will be drawn vertically if
190 * <code>vertical</code> is true, otherwise horizontally.
191 * The UIManager key consists of five values:
192 * r1 r2 c1 c2 c3. The gradient is broken down into four chunks drawn
193 * in order from the origin.
194 * <ol>
195 * <li>Gradient r1 % of the size from c1 to c2
196 * <li>Rectangle r2 % of the size in c2.
197 * <li>Gradient r1 % of the size from c2 to c1
198 * <li>The remaining size will be filled with a gradient from c1 to c3.
199 * </ol>
200 *
201 * @param c Component rendering to
202 * @param g Graphics to draw to.
203 * @param key UIManager key used to look up gradient values.
204 * @param x X coordinate to draw from
205 * @param y Y coordinate to draw from
206 * @param w Width to draw to
207 * @param h Height to draw to
208 * @param vertical Direction of the gradient
209 * @return true if <code>key</code> exists, otherwise false.
210 */
211 static boolean drawGradient(Component c, Graphics g, String key,
212 int x, int y, int w, int h, boolean vertical) {
213 @SuppressWarnings("unchecked")
214 java.util.List<?> gradient = (java.util.List)UIManager.get(key);
215 if (gradient == null || !(g instanceof Graphics2D)) {
216 return false;
217 }
218
219 if (w <= 0 || h <= 0) {
220 return true;
221 }
222
223 GradientPainter.INSTANCE.paint(
224 c, (Graphics2D)g, gradient, x, y, w, h, vertical);
225 return true;
226 }
227
228
229 private static class GradientPainter extends CachedPainter {
230 /**
231 * Instance used for painting. This is the only instance that is
232 * ever created.
233 */
234 public static final GradientPainter INSTANCE = new GradientPainter(8);
235
236 // Size of images to create. For vertical gradients this is the width,
237 // otherwise it's the height.
238 private static final int IMAGE_SIZE = 64;
239
240 /**
241 * This is the actual width we're painting in, or last painted to.
242 */
243 private int w;
244 /**
245 * This is the actual height we're painting in, or last painted to
246 */
247 private int h;
248
249
250 GradientPainter(int count) {
251 super(count);
252 }
253
254 public void paint(Component c, Graphics2D g,
255 java.util.List<?> gradient, int x, int y, int w,
256 int h, boolean isVertical) {
257 int imageWidth;
258 int imageHeight;
259 if (isVertical) {
260 imageWidth = IMAGE_SIZE;
261 imageHeight = h;
262 }
263 else {
264 imageWidth = w;
265 imageHeight = IMAGE_SIZE;
266 }
267 synchronized(c.getTreeLock()) {
268 this.w = w;
269 this.h = h;
270 paint(c, g, x, y, imageWidth, imageHeight,
271 gradient, isVertical);
272 }
273 }
274
275 protected void paintToImage(Component c, Image image, Graphics g,
276 int w, int h, Object[] args) {
277 Graphics2D g2 = (Graphics2D)g;
278 @SuppressWarnings("unchecked")
279 java.util.List<?> gradient = (java.util.List)args[0];
280 boolean isVertical = ((Boolean)args[1]).booleanValue();
281 // Render to the VolatileImage
282 if (isVertical) {
283 drawVerticalGradient(g2,
284 ((Number)gradient.get(0)).floatValue(),
285 ((Number)gradient.get(1)).floatValue(),
286 (Color)gradient.get(2),
287 (Color)gradient.get(3),
288 (Color)gradient.get(4), w, h);
289 }
290 else {
291 drawHorizontalGradient(g2,
292 ((Number)gradient.get(0)).floatValue(),
293 ((Number)gradient.get(1)).floatValue(),
294 (Color)gradient.get(2),
295 (Color)gradient.get(3),
296 (Color)gradient.get(4), w, h);
297 }
298 }
299
300 protected void paintImage(Component c, Graphics g,
301 int x, int y, int imageW, int imageH,
302 Image image, Object[] args) {
303 boolean isVertical = ((Boolean)args[1]).booleanValue();
304 // Render to the screen
305 g.translate(x, y);
306 if (isVertical) {
307 for (int counter = 0; counter < w; counter += IMAGE_SIZE) {
308 int tileSize = Math.min(IMAGE_SIZE, w - counter);
309 g.drawImage(image, counter, 0, counter + tileSize, h,
310 0, 0, tileSize, h, null);
311 }
312 }
313 else {
314 for (int counter = 0; counter < h; counter += IMAGE_SIZE) {
315 int tileSize = Math.min(IMAGE_SIZE, h - counter);
316 g.drawImage(image, 0, counter, w, counter + tileSize,
317 0, 0, w, tileSize, null);
318 }
319 }
320 g.translate(-x, -y);
321 }
322
323 private void drawVerticalGradient(Graphics2D g, float ratio1,
324 float ratio2, Color c1,Color c2,
325 Color c3, int w, int h) {
326 int mid = (int)(ratio1 * h);
327 int mid2 = (int)(ratio2 * h);
328 if (mid > 0) {
329 g.setPaint(getGradient((float)0, (float)0, c1, (float)0,
330 (float)mid, c2));
331 g.fillRect(0, 0, w, mid);
332 }
333 if (mid2 > 0) {
334 g.setColor(c2);
335 g.fillRect(0, mid, w, mid2);
336 }
337 if (mid > 0) {
338 g.setPaint(getGradient((float)0, (float)mid + mid2, c2,
339 (float)0, (float)mid * 2 + mid2, c1));
340 g.fillRect(0, mid + mid2, w, mid);
341 }
342 if (h - mid * 2 - mid2 > 0) {
343 g.setPaint(getGradient((float)0, (float)mid * 2 + mid2, c1,
344 (float)0, (float)h, c3));
345 g.fillRect(0, mid * 2 + mid2, w, h - mid * 2 - mid2);
346 }
347 }
348
349 private void drawHorizontalGradient(Graphics2D g, float ratio1,
350 float ratio2, Color c1,Color c2,
351 Color c3, int w, int h) {
352 int mid = (int)(ratio1 * w);
353 int mid2 = (int)(ratio2 * w);
354 if (mid > 0) {
355 g.setPaint(getGradient((float)0, (float)0, c1,
356 (float)mid, (float)0, c2));
357 g.fillRect(0, 0, mid, h);
358 }
359 if (mid2 > 0) {
360 g.setColor(c2);
361 g.fillRect(mid, 0, mid2, h);
362 }
363 if (mid > 0) {
364 g.setPaint(getGradient((float)mid + mid2, (float)0, c2,
365 (float)mid * 2 + mid2, (float)0, c1));
366 g.fillRect(mid + mid2, 0, mid, h);
367 }
368 if (w - mid * 2 - mid2 > 0) {
369 g.setPaint(getGradient((float)mid * 2 + mid2, (float)0, c1,
370 w, (float)0, c3));
371 g.fillRect(mid * 2 + mid2, 0, w - mid * 2 - mid2, h);
372 }
373 }
374
375 private GradientPaint getGradient(float x1, float y1,
376 Color c1, float x2, float y2,
377 Color c2) {
378 return new GradientPaint(x1, y1, c1, x2, y2, c2, true);
379 }
380 }
381
382
383 /**
384 * Returns true if the specified widget is in a toolbar.
385 */
386 static boolean isToolBarButton(JComponent c) {
387 return (c.getParent() instanceof JToolBar);
388 }
389
390 static Icon getOceanToolBarIcon(Image i) {
391 ImageProducer prod = new FilteredImageSource(i.getSource(),
392 new OceanToolBarImageFilter());
393 return new ImageIconUIResource(Toolkit.getDefaultToolkit().createImage(prod));
394 }
395
396 static Icon getOceanDisabledButtonIcon(Image image) {
397 Object[] range = (Object[])UIManager.get("Button.disabledGrayRange");
398 int min = 180;
399 int max = 215;
400 if (range != null) {
401 min = ((Integer)range[0]).intValue();
402 max = ((Integer)range[1]).intValue();
403 }
404 ImageProducer prod = new FilteredImageSource(image.getSource(),
405 new OceanDisabledButtonImageFilter(min , max));
406 return new ImageIconUIResource(Toolkit.getDefaultToolkit().createImage(prod));
407 }
408
409
410
411
412 /**
413 * Used to create a disabled Icon with the ocean look.
414 */
415 private static class OceanDisabledButtonImageFilter extends RGBImageFilter{
416 private float min;
417 private float factor;
418
419 OceanDisabledButtonImageFilter(int min, int max) {
420 canFilterIndexColorModel = true;
421 this.min = (float)min;
422 this.factor = (max - min) / 255f;
423 }
424
425 public int filterRGB(int x, int y, int rgb) {
426 // Coefficients are from the sRGB color space:
427 int gray = Math.min(255, (int)(((0.2125f * ((rgb >> 16) & 0xFF)) +
428 (0.7154f * ((rgb >> 8) & 0xFF)) +
429 (0.0721f * (rgb & 0xFF)) + .5f) * factor + min));
430
431 return (rgb & 0xff000000) | (gray << 16) | (gray << 8) |
432 (gray << 0);
433 }
434 }
435
436
437 /**
438 * Used to create the rollover icons with the ocean look.
439 */
440 private static class OceanToolBarImageFilter extends RGBImageFilter {
441 OceanToolBarImageFilter() {
442 canFilterIndexColorModel = true;
443 }
444
445 public int filterRGB(int x, int y, int rgb) {
446 int r = ((rgb >> 16) & 0xff);
447 int g = ((rgb >> 8) & 0xff);
448 int b = (rgb & 0xff);
449 int gray = Math.max(Math.max(r, g), b);
450 return (rgb & 0xff000000) | (gray << 16) | (gray << 8) |
451 (gray << 0);
452 }
453 }
454 }