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| 1 | +/* | |
| 2 | + * Copyright (c) 1999, 2010, 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 sun.java2d.pipe; | |
| 27 | + | |
| 28 | +import java.awt.Font; | |
| 29 | +import java.awt.Shape; | |
| 30 | +import java.awt.BasicStroke; | |
| 31 | +import java.awt.Polygon; | |
| 32 | +import java.awt.geom.AffineTransform; | |
| 33 | +import java.awt.geom.PathIterator; | |
| 34 | +import java.awt.geom.RoundRectangle2D; | |
| 35 | +import java.awt.geom.Ellipse2D; | |
| 36 | +import java.awt.geom.Arc2D; | |
| 37 | +import java.awt.geom.IllegalPathStateException; | |
| 38 | +import java.awt.geom.Path2D; | |
| 39 | +import java.awt.font.GlyphVector; | |
| 40 | +import sun.java2d.SunGraphics2D; | |
| 41 | +import sun.java2d.SurfaceData; | |
| 42 | +import sun.java2d.loops.FontInfo; | |
| 43 | +import sun.java2d.loops.DrawPolygons; | |
| 44 | +import sun.java2d.loops.FillParallelogram; | |
| 45 | +import sun.java2d.loops.DrawParallelogram; | |
| 46 | +import sun.awt.SunHints; | |
| 47 | + | |
| 48 | +public class LoopPipe | |
| 49 | + implements PixelDrawPipe, | |
| 50 | + PixelFillPipe, | |
| 51 | + ParallelogramPipe, | |
| 52 | + ShapeDrawPipe, | |
| 53 | + LoopBasedPipe | |
| 54 | +{ | |
| 55 | + final static RenderingEngine RenderEngine = RenderingEngine.getInstance(); | |
| 56 | + | |
| 57 | + public void drawLine(SunGraphics2D sg2d, | |
| 58 | + int x1, int y1, int x2, int y2) | |
| 59 | + { | |
| 60 | + int tX = sg2d.transX; | |
| 61 | + int tY = sg2d.transY; | |
| 62 | + sg2d.loops.drawLineLoop.DrawLine(sg2d, sg2d.getSurfaceData(), | |
| 63 | + x1 + tX, y1 + tY, | |
| 64 | + x2 + tX, y2 + tY); | |
| 65 | + } | |
| 66 | + | |
| 67 | + public void drawRect(SunGraphics2D sg2d, | |
| 68 | + int x, int y, int width, int height) | |
| 69 | + { | |
| 70 | + sg2d.loops.drawRectLoop.DrawRect(sg2d, sg2d.getSurfaceData(), | |
| 71 | + x + sg2d.transX, | |
| 72 | + y + sg2d.transY, | |
| 73 | + width, height); | |
| 74 | + } | |
| 75 | + | |
| 76 | + public void drawRoundRect(SunGraphics2D sg2d, | |
| 77 | + int x, int y, int width, int height, | |
| 78 | + int arcWidth, int arcHeight) | |
| 79 | + { | |
| 80 | + sg2d.shapepipe.draw(sg2d, | |
| 81 | + new RoundRectangle2D.Float(x, y, width, height, | |
| 82 | + arcWidth, arcHeight)); | |
| 83 | + } | |
| 84 | + | |
| 85 | + public void drawOval(SunGraphics2D sg2d, | |
| 86 | + int x, int y, int width, int height) | |
| 87 | + { | |
| 88 | + sg2d.shapepipe.draw(sg2d, new Ellipse2D.Float(x, y, width, height)); | |
| 89 | + } | |
| 90 | + | |
| 91 | + public void drawArc(SunGraphics2D sg2d, | |
| 92 | + int x, int y, int width, int height, | |
| 93 | + int startAngle, int arcAngle) | |
| 94 | + { | |
| 95 | + sg2d.shapepipe.draw(sg2d, new Arc2D.Float(x, y, width, height, | |
| 96 | + startAngle, arcAngle, | |
| 97 | + Arc2D.OPEN)); | |
| 98 | + } | |
| 99 | + | |
| 100 | + public void drawPolyline(SunGraphics2D sg2d, | |
| 101 | + int xPoints[], int yPoints[], | |
| 102 | + int nPoints) | |
| 103 | + { | |
| 104 | + int nPointsArray[] = { nPoints }; | |
| 105 | + sg2d.loops.drawPolygonsLoop.DrawPolygons(sg2d, sg2d.getSurfaceData(), | |
| 106 | + xPoints, yPoints, | |
| 107 | + nPointsArray, 1, | |
| 108 | + sg2d.transX, sg2d.transY, | |
| 109 | + false); | |
| 110 | + } | |
| 111 | + | |
| 112 | + public void drawPolygon(SunGraphics2D sg2d, | |
| 113 | + int xPoints[], int yPoints[], | |
| 114 | + int nPoints) | |
| 115 | + { | |
| 116 | + int nPointsArray[] = { nPoints }; | |
| 117 | + sg2d.loops.drawPolygonsLoop.DrawPolygons(sg2d, sg2d.getSurfaceData(), | |
| 118 | + xPoints, yPoints, | |
| 119 | + nPointsArray, 1, | |
| 120 | + sg2d.transX, sg2d.transY, | |
| 121 | + true); | |
| 122 | + } | |
| 123 | + | |
| 124 | + public void fillRect(SunGraphics2D sg2d, | |
| 125 | + int x, int y, int width, int height) | |
| 126 | + { | |
| 127 | + sg2d.loops.fillRectLoop.FillRect(sg2d, sg2d.getSurfaceData(), | |
| 128 | + x + sg2d.transX, | |
| 129 | + y + sg2d.transY, | |
| 130 | + width, height); | |
| 131 | + } | |
| 132 | + | |
| 133 | + public void fillRoundRect(SunGraphics2D sg2d, | |
| 134 | + int x, int y, int width, int height, | |
| 135 | + int arcWidth, int arcHeight) | |
| 136 | + { | |
| 137 | + sg2d.shapepipe.fill(sg2d, | |
| 138 | + new RoundRectangle2D.Float(x, y, width, height, | |
| 139 | + arcWidth, arcHeight)); | |
| 140 | + } | |
| 141 | + | |
| 142 | + public void fillOval(SunGraphics2D sg2d, | |
| 143 | + int x, int y, int width, int height) | |
| 144 | + { | |
| 145 | + sg2d.shapepipe.fill(sg2d, new Ellipse2D.Float(x, y, width, height)); | |
| 146 | + } | |
| 147 | + | |
| 148 | + public void fillArc(SunGraphics2D sg2d, | |
| 149 | + int x, int y, int width, int height, | |
| 150 | + int startAngle, int arcAngle) | |
| 151 | + { | |
| 152 | + sg2d.shapepipe.fill(sg2d, new Arc2D.Float(x, y, width, height, | |
| 153 | + startAngle, arcAngle, | |
| 154 | + Arc2D.PIE)); | |
| 155 | + } | |
| 156 | + | |
| 157 | + public void fillPolygon(SunGraphics2D sg2d, | |
| 158 | + int xPoints[], int yPoints[], | |
| 159 | + int nPoints) | |
| 160 | + { | |
| 161 | + ShapeSpanIterator sr = getFillSSI(sg2d); | |
| 162 | + | |
| 163 | + try { | |
| 164 | + sr.setOutputArea(sg2d.getCompClip()); | |
| 165 | + sr.appendPoly(xPoints, yPoints, nPoints, sg2d.transX, sg2d.transY); | |
| 166 | + fillSpans(sg2d, sr); | |
| 167 | + } finally { | |
| 168 | + sr.dispose(); | |
| 169 | + } | |
| 170 | + } | |
| 171 | + | |
| 172 | + | |
| 173 | + public void draw(SunGraphics2D sg2d, Shape s) { | |
| 174 | + if (sg2d.strokeState == sg2d.STROKE_THIN) { | |
| 175 | + Path2D.Float p2df; | |
| 176 | + int transX; | |
| 177 | + int transY; | |
| 178 | + if (sg2d.transformState <= sg2d.TRANSFORM_INT_TRANSLATE) { | |
| 179 | + if (s instanceof Path2D.Float) { | |
| 180 | + p2df = (Path2D.Float)s; | |
| 181 | + } else { | |
| 182 | + p2df = new Path2D.Float(s); | |
| 183 | + } | |
| 184 | + transX = sg2d.transX; | |
| 185 | + transY = sg2d.transY; | |
| 186 | + } else { | |
| 187 | + p2df = new Path2D.Float(s, sg2d.transform); | |
| 188 | + transX = 0; | |
| 189 | + transY = 0; | |
| 190 | + } | |
| 191 | + sg2d.loops.drawPathLoop.DrawPath(sg2d, sg2d.getSurfaceData(), | |
| 192 | + transX, transY, p2df); | |
| 193 | + return; | |
| 194 | + } | |
| 195 | + | |
| 196 | + if (sg2d.strokeState == sg2d.STROKE_CUSTOM) { | |
| 197 | + fill(sg2d, sg2d.stroke.createStrokedShape(s)); | |
| 198 | + return; | |
| 199 | + } | |
| 200 | + | |
| 201 | + ShapeSpanIterator sr = getStrokeSpans(sg2d, s); | |
| 202 | + | |
| 203 | + try { | |
| 204 | + fillSpans(sg2d, sr); | |
| 205 | + } finally { | |
| 206 | + sr.dispose(); | |
| 207 | + } | |
| 208 | + } | |
| 209 | + | |
| 210 | + /** | |
| 211 | + * Return a ShapeSpanIterator instance that normalizes as | |
| 212 | + * appropriate for a fill operation as per the settings in | |
| 213 | + * the specified SunGraphics2D object. | |
| 214 | + * | |
| 215 | + * The ShapeSpanIterator will be newly constructed and ready | |
| 216 | + * to start taking in geometry. | |
| 217 | + * | |
| 218 | + * Note that the caller is responsible for calling dispose() | |
| 219 | + * on the returned ShapeSpanIterator inside a try/finally block: | |
| 220 | + * <pre> | |
| 221 | + * ShapeSpanIterator ssi = LoopPipe.getFillSSI(sg2d); | |
| 222 | + * try { | |
| 223 | + * ssi.setOutputArea(clip); | |
| 224 | + * ssi.appendPath(...); // or appendPoly | |
| 225 | + * // iterate the spans from ssi and operate on them | |
| 226 | + * } finally { | |
| 227 | + * ssi.dispose(); | |
| 228 | + * } | |
| 229 | + * </pre> | |
| 230 | + */ | |
| 231 | + public static ShapeSpanIterator getFillSSI(SunGraphics2D sg2d) { | |
| 232 | + boolean adjust = ((sg2d.stroke instanceof BasicStroke) && | |
| 233 | + sg2d.strokeHint != SunHints.INTVAL_STROKE_PURE); | |
| 234 | + return new ShapeSpanIterator(adjust); | |
| 235 | + } | |
| 236 | + | |
| 237 | + /* | |
| 238 | + * Return a ShapeSpanIterator ready to iterate the spans of the wide | |
| 239 | + * outline of Shape s using the attributes of the SunGraphics2D | |
| 240 | + * object. | |
| 241 | + * | |
| 242 | + * The ShapeSpanIterator returned will be fully constructed | |
| 243 | + * and filled with the geometry from the Shape widened by the | |
| 244 | + * appropriate BasicStroke and normalization parameters taken | |
| 245 | + * from the SunGraphics2D object and be ready to start returning | |
| 246 | + * spans. | |
| 247 | + * | |
| 248 | + * Note that the caller is responsible for calling dispose() | |
| 249 | + * on the returned ShapeSpanIterator inside a try/finally block. | |
| 250 | + * <pre> | |
| 251 | + * ShapeSpanIterator ssi = LoopPipe.getStrokeSpans(sg2d, s); | |
| 252 | + * try { | |
| 253 | + * // iterate the spans from ssi and operate on them | |
| 254 | + * } finally { | |
| 255 | + * ssi.dispose(); | |
| 256 | + * } | |
| 257 | + * </pre> | |
| 258 | + * | |
| 259 | + * REMIND: This should return a SpanIterator interface object | |
| 260 | + * but the caller needs to dispose() the object and that method | |
| 261 | + * is only on ShapeSpanIterator. | |
| 262 | + * TODO: Add a dispose() method to the SpanIterator interface. | |
| 263 | + */ | |
| 264 | + public static ShapeSpanIterator getStrokeSpans(SunGraphics2D sg2d, | |
| 265 | + Shape s) | |
| 266 | + { | |
| 267 | + ShapeSpanIterator sr = new ShapeSpanIterator(false); | |
| 268 | + | |
| 269 | + try { | |
| 270 | + sr.setOutputArea(sg2d.getCompClip()); | |
| 271 | + sr.setRule(PathIterator.WIND_NON_ZERO); | |
| 272 | + | |
| 273 | + BasicStroke bs = (BasicStroke) sg2d.stroke; | |
| 274 | + boolean thin = (sg2d.strokeState <= sg2d.STROKE_THINDASHED); | |
| 275 | + boolean normalize = | |
| 276 | + (sg2d.strokeHint != SunHints.INTVAL_STROKE_PURE); | |
| 277 | + | |
| 278 | + RenderEngine.strokeTo(s, | |
| 279 | + sg2d.transform, bs, | |
| 280 | + thin, normalize, false, sr); | |
| 281 | + } catch (Throwable t) { | |
| 282 | + sr.dispose(); | |
| 283 | + sr = null; | |
| 284 | + t.printStackTrace(); | |
| 285 | + throw new InternalError("Unable to Stroke shape ("+ | |
| 286 | + t.getMessage()+")"); | |
| 287 | + } | |
| 288 | + return sr; | |
| 289 | + } | |
| 290 | + | |
| 291 | + public void fill(SunGraphics2D sg2d, Shape s) { | |
| 292 | + if (sg2d.strokeState == sg2d.STROKE_THIN) { | |
| 293 | + Path2D.Float p2df; | |
| 294 | + int transX; | |
| 295 | + int transY; | |
| 296 | + if (sg2d.transformState <= sg2d.TRANSFORM_INT_TRANSLATE) { | |
| 297 | + if (s instanceof Path2D.Float) { | |
| 298 | + p2df = (Path2D.Float)s; | |
| 299 | + } else { | |
| 300 | + p2df = new Path2D.Float(s); | |
| 301 | + } | |
| 302 | + transX = sg2d.transX; | |
| 303 | + transY = sg2d.transY; | |
| 304 | + } else { | |
| 305 | + p2df = new Path2D.Float(s, sg2d.transform); | |
| 306 | + transX = 0; | |
| 307 | + transY = 0; | |
| 308 | + } | |
| 309 | + sg2d.loops.fillPathLoop.FillPath(sg2d, sg2d.getSurfaceData(), | |
| 310 | + transX, transY, p2df); | |
| 311 | + return; | |
| 312 | + } | |
| 313 | + | |
| 314 | + ShapeSpanIterator sr = getFillSSI(sg2d); | |
| 315 | + try { | |
| 316 | + sr.setOutputArea(sg2d.getCompClip()); | |
| 317 | + AffineTransform at = | |
| 318 | + ((sg2d.transformState == sg2d.TRANSFORM_ISIDENT) | |
| 319 | + ? null | |
| 320 | + : sg2d.transform); | |
| 321 | + sr.appendPath(s.getPathIterator(at)); | |
| 322 | + fillSpans(sg2d, sr); | |
| 323 | + } finally { | |
| 324 | + sr.dispose(); | |
| 325 | + } | |
| 326 | + } | |
| 327 | + | |
| 328 | + private static void fillSpans(SunGraphics2D sg2d, SpanIterator si) { | |
| 329 | + // REMIND: Eventually, the plan is that it will not be possible for | |
| 330 | + // fs to be null since the FillSpans loop will be the fundamental | |
| 331 | + // loop implemented for any destination type... | |
| 332 | + if (sg2d.clipState == sg2d.CLIP_SHAPE) { | |
| 333 | + si = sg2d.clipRegion.filter(si); | |
| 334 | + // REMIND: Region.filter produces a Java-only iterator | |
| 335 | + // with no native counterpart... | |
| 336 | + } else { | |
| 337 | + sun.java2d.loops.FillSpans fs = sg2d.loops.fillSpansLoop; | |
| 338 | + if (fs != null) { | |
| 339 | + fs.FillSpans(sg2d, sg2d.getSurfaceData(), si); | |
| 340 | + return; | |
| 341 | + } | |
| 342 | + } | |
| 343 | + int spanbox[] = new int[4]; | |
| 344 | + SurfaceData sd = sg2d.getSurfaceData(); | |
| 345 | + while (si.nextSpan(spanbox)) { | |
| 346 | + int x = spanbox[0]; | |
| 347 | + int y = spanbox[1]; | |
| 348 | + int w = spanbox[2] - x; | |
| 349 | + int h = spanbox[3] - y; | |
| 350 | + sg2d.loops.fillRectLoop.FillRect(sg2d, sd, x, y, w, h); | |
| 351 | + } | |
| 352 | + } | |
| 353 | + | |
| 354 | + public void fillParallelogram(SunGraphics2D sg2d, | |
| 355 | + double ux1, double uy1, | |
| 356 | + double ux2, double uy2, | |
| 357 | + double x, double y, | |
| 358 | + double dx1, double dy1, | |
| 359 | + double dx2, double dy2) | |
| 360 | + { | |
| 361 | + FillParallelogram fp = sg2d.loops.fillParallelogramLoop; | |
| 362 | + fp.FillParallelogram(sg2d, sg2d.getSurfaceData(), | |
| 363 | + x, y, dx1, dy1, dx2, dy2); | |
| 364 | + } | |
| 365 | + | |
| 366 | + public void drawParallelogram(SunGraphics2D sg2d, | |
| 367 | + double ux1, double uy1, | |
| 368 | + double ux2, double uy2, | |
| 369 | + double x, double y, | |
| 370 | + double dx1, double dy1, | |
| 371 | + double dx2, double dy2, | |
| 372 | + double lw1, double lw2) | |
| 373 | + { | |
| 374 | + DrawParallelogram dp = sg2d.loops.drawParallelogramLoop; | |
| 375 | + dp.DrawParallelogram(sg2d, sg2d.getSurfaceData(), | |
| 376 | + x, y, dx1, dy1, dx2, dy2, lw1, lw2); | |
| 377 | + } | |
| 378 | +} | |