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 java.util.List gradient = (java.util.List)UIManager.get(key); 214 if (gradient == null || !(g instanceof Graphics2D)) { 215 return false; 216 } 217 218 if (w <= 0 || h <= 0) { 219 return true; 220 } 221 222 GradientPainter.INSTANCE.paint( 223 c, (Graphics2D)g, gradient, x, y, w, h, vertical); 224 return true; 225 } 226 227 228 private static class GradientPainter extends CachedPainter { 229 /** 230 * Instance used for painting. This is the only instance that is 231 * ever created. 232 */ 233 public static final GradientPainter INSTANCE = new GradientPainter(8); 234 235 // Size of images to create. For vertical gradients this is the width, 236 // otherwise it's the height. 237 private static final int IMAGE_SIZE = 64; 238 239 /** 240 * This is the actual width we're painting in, or last painted to. 241 */ 242 private int w; 243 /** 244 * This is the actual height we're painting in, or last painted to 245 */ 246 private int h; 247 248 249 GradientPainter(int count) { 250 super(count); 251 } 252 253 public void paint(Component c, Graphics2D g, 254 java.util.List gradient, int x, int y, int w, 255 int h, boolean isVertical) { 256 int imageWidth; 257 int imageHeight; 258 if (isVertical) { 259 imageWidth = IMAGE_SIZE; 260 imageHeight = h; 261 } 262 else { 263 imageWidth = w; 264 imageHeight = IMAGE_SIZE; 265 } 266 synchronized(c.getTreeLock()) { 267 this.w = w; 268 this.h = h; 269 paint(c, g, x, y, imageWidth, imageHeight, 270 gradient, isVertical); 271 } 272 } 273 274 protected void paintToImage(Component c, Image image, Graphics g, 275 int w, int h, Object[] args) { 276 Graphics2D g2 = (Graphics2D)g; 277 java.util.List gradient = (java.util.List)args[0]; 278 boolean isVertical = ((Boolean)args[1]).booleanValue(); 279 // Render to the VolatileImage 280 if (isVertical) { 281 drawVerticalGradient(g2, 282 ((Number)gradient.get(0)).floatValue(), 283 ((Number)gradient.get(1)).floatValue(), 284 (Color)gradient.get(2), 285 (Color)gradient.get(3), 286 (Color)gradient.get(4), w, h); 287 } 288 else { 289 drawHorizontalGradient(g2, 290 ((Number)gradient.get(0)).floatValue(), 291 ((Number)gradient.get(1)).floatValue(), 292 (Color)gradient.get(2), 293 (Color)gradient.get(3), 294 (Color)gradient.get(4), w, h); 295 } 296 } 297 298 protected void paintImage(Component c, Graphics g, 299 int x, int y, int imageW, int imageH, 300 Image image, Object[] args) { 301 boolean isVertical = ((Boolean)args[1]).booleanValue(); 302 // Render to the screen 303 g.translate(x, y); 304 if (isVertical) { 305 for (int counter = 0; counter < w; counter += IMAGE_SIZE) { 306 int tileSize = Math.min(IMAGE_SIZE, w - counter); 307 g.drawImage(image, counter, 0, counter + tileSize, h, 308 0, 0, tileSize, h, null); 309 } 310 } 311 else { 312 for (int counter = 0; counter < h; counter += IMAGE_SIZE) { 313 int tileSize = Math.min(IMAGE_SIZE, h - counter); 314 g.drawImage(image, 0, counter, w, counter + tileSize, 315 0, 0, w, tileSize, null); 316 } 317 } 318 g.translate(-x, -y); 319 } 320 321 private void drawVerticalGradient(Graphics2D g, float ratio1, 322 float ratio2, Color c1,Color c2, 323 Color c3, int w, int h) { 324 int mid = (int)(ratio1 * h); 325 int mid2 = (int)(ratio2 * h); 326 if (mid > 0) { 327 g.setPaint(getGradient((float)0, (float)0, c1, (float)0, 328 (float)mid, c2)); 329 g.fillRect(0, 0, w, mid); 330 } 331 if (mid2 > 0) { 332 g.setColor(c2); 333 g.fillRect(0, mid, w, mid2); 334 } 335 if (mid > 0) { 336 g.setPaint(getGradient((float)0, (float)mid + mid2, c2, 337 (float)0, (float)mid * 2 + mid2, c1)); 338 g.fillRect(0, mid + mid2, w, mid); 339 } 340 if (h - mid * 2 - mid2 > 0) { 341 g.setPaint(getGradient((float)0, (float)mid * 2 + mid2, c1, 342 (float)0, (float)h, c3)); 343 g.fillRect(0, mid * 2 + mid2, w, h - mid * 2 - mid2); 344 } 345 } 346 347 private void drawHorizontalGradient(Graphics2D g, float ratio1, 348 float ratio2, Color c1,Color c2, 349 Color c3, int w, int h) { 350 int mid = (int)(ratio1 * w); 351 int mid2 = (int)(ratio2 * w); 352 if (mid > 0) { 353 g.setPaint(getGradient((float)0, (float)0, c1, 354 (float)mid, (float)0, c2)); 355 g.fillRect(0, 0, mid, h); 356 } 357 if (mid2 > 0) { 358 g.setColor(c2); 359 g.fillRect(mid, 0, mid2, h); 360 } 361 if (mid > 0) { 362 g.setPaint(getGradient((float)mid + mid2, (float)0, c2, 363 (float)mid * 2 + mid2, (float)0, c1)); 364 g.fillRect(mid + mid2, 0, mid, h); 365 } 366 if (w - mid * 2 - mid2 > 0) { 367 g.setPaint(getGradient((float)mid * 2 + mid2, (float)0, c1, 368 w, (float)0, c3)); 369 g.fillRect(mid * 2 + mid2, 0, w - mid * 2 - mid2, h); 370 } 371 } 372 373 private GradientPaint getGradient(float x1, float y1, 374 Color c1, float x2, float y2, 375 Color c2) { 376 return new GradientPaint(x1, y1, c1, x2, y2, c2, true); 377 } 378 } 379 380 381 /** 382 * Returns true if the specified widget is in a toolbar. 383 */ 384 static boolean isToolBarButton(JComponent c) { 385 return (c.getParent() instanceof JToolBar); 386 } 387 388 static Icon getOceanToolBarIcon(Image i) { 389 ImageProducer prod = new FilteredImageSource(i.getSource(), 390 new OceanToolBarImageFilter()); 391 return new ImageIconUIResource(Toolkit.getDefaultToolkit().createImage(prod)); 392 } 393 394 static Icon getOceanDisabledButtonIcon(Image image) { 395 Object[] range = (Object[])UIManager.get("Button.disabledGrayRange"); 396 int min = 180; 397 int max = 215; 398 if (range != null) { 399 min = ((Integer)range[0]).intValue(); 400 max = ((Integer)range[1]).intValue(); 401 } 402 ImageProducer prod = new FilteredImageSource(image.getSource(), 403 new OceanDisabledButtonImageFilter(min , max)); 404 return new ImageIconUIResource(Toolkit.getDefaultToolkit().createImage(prod)); 405 } 406 407 408 409 410 /** 411 * Used to create a disabled Icon with the ocean look. 412 */ 413 private static class OceanDisabledButtonImageFilter extends RGBImageFilter{ 414 private float min; 415 private float factor; 416 417 OceanDisabledButtonImageFilter(int min, int max) { 418 canFilterIndexColorModel = true; 419 this.min = (float)min; 420 this.factor = (max - min) / 255f; 421 } 422 423 public int filterRGB(int x, int y, int rgb) { 424 // Coefficients are from the sRGB color space: 425 int gray = Math.min(255, (int)(((0.2125f * ((rgb >> 16) & 0xFF)) + 426 (0.7154f * ((rgb >> 8) & 0xFF)) + 427 (0.0721f * (rgb & 0xFF)) + .5f) * factor + min)); 428 429 return (rgb & 0xff000000) | (gray << 16) | (gray << 8) | 430 (gray << 0); 431 } 432 } 433 434 435 /** 436 * Used to create the rollover icons with the ocean look. 437 */ 438 private static class OceanToolBarImageFilter extends RGBImageFilter { 439 OceanToolBarImageFilter() { 440 canFilterIndexColorModel = true; 441 } 442 443 public int filterRGB(int x, int y, int rgb) { 444 int r = ((rgb >> 16) & 0xff); 445 int g = ((rgb >> 8) & 0xff); 446 int b = (rgb & 0xff); 447 int gray = Math.max(Math.max(r, g), b); 448 return (rgb & 0xff000000) | (gray << 16) | (gray << 8) | 449 (gray << 0); 450 } 451 } 452 }