1/* 2 * Copyright (c) 1998, 2014, 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 26package javax.swing.plaf.metal; 27 28import javax.swing.plaf.*; 29import javax.swing.*; 30import java.awt.*; 31import java.awt.image.*; 32import java.lang.ref.*; 33import java.util.*; 34import sun.swing.CachedPainter; 35import 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 43class 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} 455