J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1997-2003 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 sun.java2d.pipe; |
| 27 | |
| 28 | import java.awt.Color; |
| 29 | import java.awt.Image; |
| 30 | import java.awt.Shape; |
| 31 | import java.awt.geom.AffineTransform; |
| 32 | import java.awt.image.BufferedImage; |
| 33 | import java.awt.image.BufferedImageOp; |
| 34 | import java.awt.image.ImageObserver; |
| 35 | import sun.java2d.SunGraphics2D; |
| 36 | import java.awt.font.GlyphVector; |
| 37 | |
| 38 | /** |
| 39 | * This class is used to force a revalidation of the pipelines of |
| 40 | * the indicated SunGraphics2D object before a draw command. |
| 41 | * After calling SunGraphics2D.validatePipe() to force the pipeline |
| 42 | * to be revalidated, this object redispatches the draw command to |
| 43 | * the new valid pipe object. |
| 44 | */ |
| 45 | public class ValidatePipe |
| 46 | implements PixelDrawPipe, PixelFillPipe, ShapeDrawPipe, TextPipe, |
| 47 | DrawImagePipe |
| 48 | { |
| 49 | /* |
| 50 | * Different subclasses may override this to do various |
| 51 | * other forms of validation and return a return code |
| 52 | * indicating whether or not the validation was successful. |
| 53 | */ |
| 54 | public boolean validate(SunGraphics2D sg) { |
| 55 | sg.validatePipe(); |
| 56 | return true; |
| 57 | } |
| 58 | |
| 59 | public void drawLine(SunGraphics2D sg, |
| 60 | int x1, int y1, int x2, int y2) { |
| 61 | if (validate(sg)) { |
| 62 | sg.drawpipe.drawLine(sg, x1, y1, x2, y2); |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | public void drawRect(SunGraphics2D sg, |
| 67 | int x, int y, int width, int height) { |
| 68 | if (validate(sg)) { |
| 69 | sg.drawpipe.drawRect(sg, x, y, width, height); |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | public void fillRect(SunGraphics2D sg, |
| 74 | int x, int y, int width, int height) { |
| 75 | if (validate(sg)) { |
| 76 | sg.fillpipe.fillRect(sg, x, y, width, height); |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | public void drawRoundRect(SunGraphics2D sg, |
| 81 | int x, int y, int width, int height, |
| 82 | int arcWidth, int arcHeight) { |
| 83 | if (validate(sg)) { |
| 84 | sg.drawpipe.drawRoundRect(sg, x, y, width, height, |
| 85 | arcWidth, arcHeight); |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | public void fillRoundRect(SunGraphics2D sg, |
| 90 | int x, int y, int width, int height, |
| 91 | int arcWidth, int arcHeight) { |
| 92 | if (validate(sg)) { |
| 93 | sg.fillpipe.fillRoundRect(sg, x, y, width, height, |
| 94 | arcWidth, arcHeight); |
| 95 | } |
| 96 | } |
| 97 | |
| 98 | public void drawOval(SunGraphics2D sg, |
| 99 | int x, int y, int width, int height) { |
| 100 | if (validate(sg)) { |
| 101 | sg.drawpipe.drawOval(sg, x, y, width, height); |
| 102 | } |
| 103 | } |
| 104 | |
| 105 | public void fillOval(SunGraphics2D sg, |
| 106 | int x, int y, int width, int height) { |
| 107 | if (validate(sg)) { |
| 108 | sg.fillpipe.fillOval(sg, x, y, width, height); |
| 109 | } |
| 110 | } |
| 111 | |
| 112 | public void drawArc(SunGraphics2D sg, |
| 113 | int x, int y, int width, int height, |
| 114 | int startAngle, int arcAngle) { |
| 115 | if (validate(sg)) { |
| 116 | sg.drawpipe.drawArc(sg, x, y, width, height, startAngle, arcAngle); |
| 117 | } |
| 118 | } |
| 119 | |
| 120 | public void fillArc(SunGraphics2D sg, |
| 121 | int x, int y, int width, int height, |
| 122 | int startAngle, int arcAngle) { |
| 123 | if (validate(sg)) { |
| 124 | sg.fillpipe.fillArc(sg, x, y, width, height, startAngle, arcAngle); |
| 125 | } |
| 126 | } |
| 127 | |
| 128 | public void drawPolyline(SunGraphics2D sg, |
| 129 | int xPoints[], int yPoints[], |
| 130 | int nPoints) { |
| 131 | if (validate(sg)) { |
| 132 | sg.drawpipe.drawPolyline(sg, xPoints, yPoints, nPoints); |
| 133 | } |
| 134 | } |
| 135 | |
| 136 | public void drawPolygon(SunGraphics2D sg, |
| 137 | int xPoints[], int yPoints[], |
| 138 | int nPoints) { |
| 139 | if (validate(sg)) { |
| 140 | sg.drawpipe.drawPolygon(sg, xPoints, yPoints, nPoints); |
| 141 | } |
| 142 | } |
| 143 | |
| 144 | public void fillPolygon(SunGraphics2D sg, |
| 145 | int xPoints[], int yPoints[], |
| 146 | int nPoints) { |
| 147 | if (validate(sg)) { |
| 148 | sg.fillpipe.fillPolygon(sg, xPoints, yPoints, nPoints); |
| 149 | } |
| 150 | } |
| 151 | |
| 152 | public void draw(SunGraphics2D sg, Shape s) { |
| 153 | if (validate(sg)) { |
| 154 | sg.shapepipe.draw(sg, s); |
| 155 | } |
| 156 | } |
| 157 | |
| 158 | public void fill(SunGraphics2D sg, Shape s) { |
| 159 | if (validate(sg)) { |
| 160 | sg.shapepipe.fill(sg, s); |
| 161 | } |
| 162 | } |
| 163 | public void drawString(SunGraphics2D sg, String s, double x, double y) { |
| 164 | if (validate(sg)) { |
| 165 | sg.textpipe.drawString(sg, s, x, y); |
| 166 | } |
| 167 | } |
| 168 | public void drawGlyphVector(SunGraphics2D sg, GlyphVector g, |
| 169 | float x, float y) { |
| 170 | if (validate(sg)) { |
| 171 | sg.textpipe.drawGlyphVector(sg, g, x, y); |
| 172 | } |
| 173 | } |
| 174 | public void drawChars(SunGraphics2D sg, |
| 175 | char data[], int offset, int length, |
| 176 | int x, int y) { |
| 177 | if (validate(sg)) { |
| 178 | sg.textpipe.drawChars(sg, data, offset, length, x, y); |
| 179 | } |
| 180 | } |
| 181 | public boolean copyImage(SunGraphics2D sg, Image img, |
| 182 | int x, int y, |
| 183 | Color bgColor, |
| 184 | ImageObserver observer) { |
| 185 | if (validate(sg)) { |
| 186 | return sg.imagepipe.copyImage(sg, img, x, y, bgColor, observer); |
| 187 | } else { |
| 188 | return false; |
| 189 | } |
| 190 | } |
| 191 | public boolean copyImage(SunGraphics2D sg, Image img, |
| 192 | int dx, int dy, int sx, int sy, int w, int h, |
| 193 | Color bgColor, |
| 194 | ImageObserver observer) { |
| 195 | if (validate(sg)) { |
| 196 | return sg.imagepipe.copyImage(sg, img, dx, dy, sx, sy, w, h, |
| 197 | bgColor, observer); |
| 198 | } else { |
| 199 | return false; |
| 200 | } |
| 201 | } |
| 202 | public boolean scaleImage(SunGraphics2D sg, Image img, int x, int y, |
| 203 | int w, int h, |
| 204 | Color bgColor, |
| 205 | ImageObserver observer) { |
| 206 | if (validate(sg)) { |
| 207 | return sg.imagepipe.scaleImage(sg, img, x, y, w, h, bgColor, |
| 208 | observer); |
| 209 | } else { |
| 210 | return false; |
| 211 | } |
| 212 | } |
| 213 | public boolean scaleImage(SunGraphics2D sg, Image img, |
| 214 | int dx1, int dy1, int dx2, int dy2, |
| 215 | int sx1, int sy1, int sx2, int sy2, |
| 216 | Color bgColor, |
| 217 | ImageObserver observer) { |
| 218 | if (validate(sg)) { |
| 219 | return sg.imagepipe.scaleImage(sg, img, dx1, dy1, dx2, dy2, |
| 220 | sx1, sy1, sx2, sy2, bgColor, |
| 221 | observer); |
| 222 | } else { |
| 223 | return false; |
| 224 | } |
| 225 | } |
| 226 | public boolean transformImage(SunGraphics2D sg, Image img, |
| 227 | AffineTransform atfm, |
| 228 | ImageObserver observer) { |
| 229 | if (validate(sg)) { |
| 230 | return sg.imagepipe.transformImage(sg, img, atfm, observer); |
| 231 | } else { |
| 232 | return false; |
| 233 | } |
| 234 | } |
| 235 | public void transformImage(SunGraphics2D sg, BufferedImage img, |
| 236 | BufferedImageOp op, int x, int y) { |
| 237 | if (validate(sg)) { |
| 238 | sg.imagepipe.transformImage(sg, img, op, x, y); |
| 239 | } |
| 240 | } |
| 241 | } |