J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1998-2003 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package javax.swing.plaf.metal; |
| 27 | |
| 28 | import java.awt.*; |
| 29 | import java.awt.image.*; |
| 30 | import javax.swing.*; |
| 31 | import java.io.*; |
| 32 | import java.util.*; |
| 33 | |
| 34 | /** |
| 35 | * Implements the bumps used throughout the Metal Look and Feel. |
| 36 | * |
| 37 | * @author Tom Santos |
| 38 | * @author Steve Wilson |
| 39 | */ |
| 40 | |
| 41 | |
| 42 | class MetalBumps implements Icon { |
| 43 | |
| 44 | static final Color ALPHA = new Color(0, 0, 0, 0); |
| 45 | |
| 46 | protected int xBumps; |
| 47 | protected int yBumps; |
| 48 | protected Color topColor; |
| 49 | protected Color shadowColor; |
| 50 | protected Color backColor; |
| 51 | |
| 52 | protected static Vector buffers = new Vector(); |
| 53 | protected BumpBuffer buffer; |
| 54 | |
| 55 | public MetalBumps( Dimension bumpArea ) { |
| 56 | this( bumpArea.width, bumpArea.height ); |
| 57 | } |
| 58 | |
| 59 | public MetalBumps( int width, int height ) { |
| 60 | this(width, height, MetalLookAndFeel.getPrimaryControlHighlight(), |
| 61 | MetalLookAndFeel.getPrimaryControlDarkShadow(), |
| 62 | MetalLookAndFeel.getPrimaryControlShadow()); |
| 63 | } |
| 64 | |
| 65 | /** |
| 66 | * Creates MetalBumps of the specified size with the specified colors. |
| 67 | * If <code>newBackColor</code> is null, the background will be |
| 68 | * transparent. |
| 69 | */ |
| 70 | public MetalBumps( int width, int height, |
| 71 | Color newTopColor, Color newShadowColor, Color newBackColor ) { |
| 72 | setBumpArea( width, height ); |
| 73 | setBumpColors( newTopColor, newShadowColor, newBackColor ); |
| 74 | } |
| 75 | |
| 76 | private BumpBuffer getBuffer(GraphicsConfiguration gc, Color aTopColor, |
| 77 | Color aShadowColor, Color aBackColor) { |
| 78 | if (buffer != null && buffer.hasSameConfiguration( |
| 79 | gc, aTopColor, aShadowColor, aBackColor)) { |
| 80 | return buffer; |
| 81 | } |
| 82 | BumpBuffer result = null; |
| 83 | |
| 84 | Enumeration elements = buffers.elements(); |
| 85 | |
| 86 | while ( elements.hasMoreElements() ) { |
| 87 | BumpBuffer aBuffer = (BumpBuffer)elements.nextElement(); |
| 88 | if ( aBuffer.hasSameConfiguration(gc, aTopColor, aShadowColor, |
| 89 | aBackColor)) { |
| 90 | result = aBuffer; |
| 91 | break; |
| 92 | } |
| 93 | } |
| 94 | if (result == null) { |
| 95 | result = new BumpBuffer(gc, topColor, shadowColor, backColor); |
| 96 | buffers.addElement(result); |
| 97 | } |
| 98 | return result; |
| 99 | } |
| 100 | |
| 101 | public void setBumpArea( Dimension bumpArea ) { |
| 102 | setBumpArea( bumpArea.width, bumpArea.height ); |
| 103 | } |
| 104 | |
| 105 | public void setBumpArea( int width, int height ) { |
| 106 | xBumps = width / 2; |
| 107 | yBumps = height / 2; |
| 108 | } |
| 109 | |
| 110 | public void setBumpColors( Color newTopColor, Color newShadowColor, Color newBackColor ) { |
| 111 | topColor = newTopColor; |
| 112 | shadowColor = newShadowColor; |
| 113 | if (newBackColor == null) { |
| 114 | backColor = ALPHA; |
| 115 | } |
| 116 | else { |
| 117 | backColor = newBackColor; |
| 118 | } |
| 119 | } |
| 120 | |
| 121 | public void paintIcon( Component c, Graphics g, int x, int y ) { |
| 122 | GraphicsConfiguration gc = (g instanceof Graphics2D) ? |
| 123 | (GraphicsConfiguration)((Graphics2D)g). |
| 124 | getDeviceConfiguration() : null; |
| 125 | |
| 126 | buffer = getBuffer(gc, topColor, shadowColor, backColor); |
| 127 | |
| 128 | int bufferWidth = buffer.getImageSize().width; |
| 129 | int bufferHeight = buffer.getImageSize().height; |
| 130 | int iconWidth = getIconWidth(); |
| 131 | int iconHeight = getIconHeight(); |
| 132 | int x2 = x + iconWidth; |
| 133 | int y2 = y + iconHeight; |
| 134 | int savex = x; |
| 135 | |
| 136 | while (y < y2) { |
| 137 | int h = Math.min(y2 - y, bufferHeight); |
| 138 | for (x = savex; x < x2; x += bufferWidth) { |
| 139 | int w = Math.min(x2 - x, bufferWidth); |
| 140 | g.drawImage(buffer.getImage(), |
| 141 | x, y, x+w, y+h, |
| 142 | 0, 0, w, h, |
| 143 | null); |
| 144 | } |
| 145 | y += bufferHeight; |
| 146 | } |
| 147 | } |
| 148 | |
| 149 | public int getIconWidth() { |
| 150 | return xBumps * 2; |
| 151 | } |
| 152 | |
| 153 | public int getIconHeight() { |
| 154 | return yBumps * 2; |
| 155 | } |
| 156 | } |
| 157 | |
| 158 | |
| 159 | class BumpBuffer { |
| 160 | |
| 161 | static final int IMAGE_SIZE = 64; |
| 162 | static Dimension imageSize = new Dimension( IMAGE_SIZE, IMAGE_SIZE ); |
| 163 | |
| 164 | transient Image image; |
| 165 | Color topColor; |
| 166 | Color shadowColor; |
| 167 | Color backColor; |
| 168 | private GraphicsConfiguration gc; |
| 169 | |
| 170 | public BumpBuffer(GraphicsConfiguration gc, Color aTopColor, |
| 171 | Color aShadowColor, Color aBackColor) { |
| 172 | this.gc = gc; |
| 173 | topColor = aTopColor; |
| 174 | shadowColor = aShadowColor; |
| 175 | backColor = aBackColor; |
| 176 | createImage(); |
| 177 | fillBumpBuffer(); |
| 178 | } |
| 179 | |
| 180 | public boolean hasSameConfiguration(GraphicsConfiguration gc, |
| 181 | Color aTopColor, Color aShadowColor, |
| 182 | Color aBackColor) { |
| 183 | if (this.gc != null) { |
| 184 | if (!this.gc.equals(gc)) { |
| 185 | return false; |
| 186 | } |
| 187 | } |
| 188 | else if (gc != null) { |
| 189 | return false; |
| 190 | } |
| 191 | return topColor.equals( aTopColor ) && |
| 192 | shadowColor.equals( aShadowColor ) && |
| 193 | backColor.equals( aBackColor ); |
| 194 | } |
| 195 | |
| 196 | /** |
| 197 | * Returns the Image containing the bumps appropriate for the passed in |
| 198 | * <code>GraphicsConfiguration</code>. |
| 199 | */ |
| 200 | public Image getImage() { |
| 201 | return image; |
| 202 | } |
| 203 | |
| 204 | public Dimension getImageSize() { |
| 205 | return imageSize; |
| 206 | } |
| 207 | |
| 208 | /** |
| 209 | * Paints the bumps into the current image. |
| 210 | */ |
| 211 | private void fillBumpBuffer() { |
| 212 | Graphics g = image.getGraphics(); |
| 213 | |
| 214 | g.setColor( backColor ); |
| 215 | g.fillRect( 0, 0, IMAGE_SIZE, IMAGE_SIZE ); |
| 216 | |
| 217 | g.setColor(topColor); |
| 218 | for (int x = 0; x < IMAGE_SIZE; x+=4) { |
| 219 | for (int y = 0; y < IMAGE_SIZE; y+=4) { |
| 220 | g.drawLine( x, y, x, y ); |
| 221 | g.drawLine( x+2, y+2, x+2, y+2); |
| 222 | } |
| 223 | } |
| 224 | |
| 225 | g.setColor(shadowColor); |
| 226 | for (int x = 0; x < IMAGE_SIZE; x+=4) { |
| 227 | for (int y = 0; y < IMAGE_SIZE; y+=4) { |
| 228 | g.drawLine( x+1, y+1, x+1, y+1 ); |
| 229 | g.drawLine( x+3, y+3, x+3, y+3); |
| 230 | } |
| 231 | } |
| 232 | g.dispose(); |
| 233 | } |
| 234 | |
| 235 | /** |
| 236 | * Creates the image appropriate for the passed in |
| 237 | * <code>GraphicsConfiguration</code>, which may be null. |
| 238 | */ |
| 239 | private void createImage() { |
| 240 | if (gc != null) { |
| 241 | image = gc.createCompatibleImage(IMAGE_SIZE, IMAGE_SIZE, |
| 242 | (backColor != MetalBumps.ALPHA) ? Transparency.OPAQUE : |
| 243 | Transparency.BITMASK); |
| 244 | } |
| 245 | else { |
| 246 | int cmap[] = { backColor.getRGB(), topColor.getRGB(), |
| 247 | shadowColor.getRGB() }; |
| 248 | IndexColorModel icm = new IndexColorModel(8, 3, cmap, 0, false, |
| 249 | (backColor == MetalBumps.ALPHA) ? 0 : -1, |
| 250 | DataBuffer.TYPE_BYTE); |
| 251 | image = new BufferedImage(IMAGE_SIZE, IMAGE_SIZE, |
| 252 | BufferedImage.TYPE_BYTE_INDEXED, icm); |
| 253 | } |
| 254 | } |
| 255 | } |