Source Code Cross Referenced for WinGDIGraphics2D.java in  » Apache-Harmony-Java-SE » org-package » org » apache » harmony » awt » gl » windows » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Apache Harmony Java SE » org package » org.apache.harmony.awt.gl.windows 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         *  Licensed to the Apache Software Foundation (ASF) under one or more
003:         *  contributor license agreements.  See the NOTICE file distributed with
004:         *  this work for additional information regarding copyright ownership.
005:         *  The ASF licenses this file to You under the Apache License, Version 2.0
006:         *  (the "License"); you may not use this file except in compliance with
007:         *  the License.  You may obtain a copy of the License at
008:         *
009:         *     http://www.apache.org/licenses/LICENSE-2.0
010:         *
011:         *  Unless required by applicable law or agreed to in writing, software
012:         *  distributed under the License is distributed on an "AS IS" BASIS,
013:         *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014:         *  See the License for the specific language governing permissions and
015:         *  limitations under the License.
016:         */
017:        /**
018:         * @author Vladimir A. Strigun
019:         * @version $Revision$
020:         */package org.apache.harmony.awt.gl.windows;
021:
022:        import java.awt.AlphaComposite;
023:        import java.awt.BasicStroke;
024:        import java.awt.Color;
025:        import java.awt.Dimension;
026:        import java.awt.GradientPaint;
027:        import java.awt.Graphics;
028:        import java.awt.GraphicsConfiguration;
029:        import java.awt.Paint;
030:        import java.awt.Rectangle;
031:        import java.awt.RenderingHints;
032:        import java.awt.Shape;
033:        import java.awt.Stroke;
034:        import java.awt.font.GlyphVector;
035:        import java.awt.geom.AffineTransform;
036:        import java.awt.geom.PathIterator;
037:        import java.awt.geom.Point2D;
038:        import java.util.Map;
039:
040:        import org.apache.harmony.awt.gl.CommonGraphics2D;
041:        import org.apache.harmony.awt.gl.MultiRectArea;
042:        import org.apache.harmony.awt.gl.font.FontManager;
043:        import org.apache.harmony.awt.gl.font.NativeFont;
044:        import org.apache.harmony.awt.gl.font.fontlib.FLTextRenderer;
045:        import org.apache.harmony.awt.wtk.NativeWindow;
046:
047:        /**
048:         * Graphics2D implementation for Windows GDI library
049:         *
050:         */
051:        public class WinGDIGraphics2D extends CommonGraphics2D {
052:            private NativeWindow nw = null;
053:            private long hdc = 0;
054:            private long gi = 0;
055:
056:            private final Dimension size;
057:
058:            GraphicsConfiguration config = null;
059:
060:            private WinVolatileImage img = null;
061:
062:            // These two flags shows are current Stroke and
063:            // Paint transferred to native objects or not.
064:            private boolean nativePen = false;
065:            private boolean nativeBrush = false;
066:
067:            // This array is used for passing Path data to
068:            // native code.
069:            // It is not thread safe.
070:            // But WTK guys think that Graphics should not
071:            // be called from different threads
072:            private float[] pathArray = null;
073:            private float[] pathPoints = null;
074:
075:            static {
076:                System.loadLibrary("gl"); //$NON-NLS-1$
077:            }
078:
079:            public WinGDIGraphics2D(NativeWindow nw, int tx, int ty,
080:                    MultiRectArea clip) {
081:                super (tx, ty, clip);
082:                this .nw = nw;
083:
084:                Rectangle b = clip.getBounds();
085:                size = new Dimension(b.width, b.height);
086:
087:                gi = createGraphicsInfo(this .nw.getId(), tx, ty, b.width,
088:                        b.height);
089:                setTransformedClip(this .clip);
090:                if (!FontManager.IS_FONTLIB) {
091:                    jtr = GDITextRenderer.inst;
092:                }
093:                dstSurf = new GDISurface(gi);
094:                blitter = GDIBlitter.getInstance();
095:                setTransform(getTransform());
096:            }
097:
098:            public WinGDIGraphics2D(NativeWindow nw, int tx, int ty, int width,
099:                    int height) {
100:                super (tx, ty);
101:                this .nw = nw;
102:
103:                size = new Dimension(width, height);
104:
105:                gi = createGraphicsInfo(this .nw.getId(), tx, ty, width, height);
106:                //setTransformedClip(this.clip);
107:                if (!FontManager.IS_FONTLIB) {
108:                    jtr = GDITextRenderer.inst;
109:                }
110:                dstSurf = new GDISurface(gi);
111:                blitter = GDIBlitter.getInstance();
112:                if (debugOutput) {
113:                    System.err
114:                            .println("WinGDIGraphics2D(" + nw + ", " + tx + ", " + ty + ", " + width + ", " + height + ")"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$ //$NON-NLS-5$ //$NON-NLS-6$
115:                }
116:                setTransform(getTransform());
117:
118:            }
119:
120:            public WinGDIGraphics2D(WinVolatileImage img, int width, int height) {
121:                this (img, 0, width, height);
122:            }
123:
124:            public WinGDIGraphics2D(WinVolatileImage img, long ogi, int width,
125:                    int height) {
126:                super ();
127:                size = new Dimension(width, height);
128:                this .img = img;
129:                if (ogi != 0) {
130:                    this .gi = copyImageInfo(ogi);
131:                } else {
132:                    this .gi = copyImageInfo(img.gi);
133:                }
134:                setTransformedClip(this .clip);
135:                dstSurf = img.getImageSurface();
136:                blitter = GDIBlitter.getInstance();
137:                if (!FontManager.IS_FONTLIB) {
138:                    jtr = GDITextRenderer.inst;
139:                }
140:                setTransform(getTransform());
141:            }
142:
143:            @Override
144:            public void addRenderingHints(Map<?, ?> hints) {
145:                super .addRenderingHints(hints);
146:                if (!FontManager.IS_FONTLIB) {
147:                    Object value = this 
148:                            .getRenderingHint(RenderingHints.KEY_ANTIALIASING);
149:                    /*
150:                    if (value == RenderingHints.VALUE_ANTIALIAS_ON) {
151:                        NativeFont.setAntialiasing(gi,true);
152:                    } else {
153:                        NativeFont.setAntialiasing(gi,false);
154:                    }
155:                     */
156:                }
157:            }
158:
159:            @Override
160:            public void copyArea(int x, int y, int width, int height, int dx,
161:                    int dy) {
162:                copyArea(gi, x, y, width, height, dx, dy);
163:            }
164:
165:            @Override
166:            public Graphics create() {
167:                if (debugOutput) {
168:                    System.err.println("WinGDIGraphics2D.create()"); //$NON-NLS-1$
169:                }
170:
171:                WinGDIGraphics2D res = null;
172:                if (img == null) {
173:                    res = new WinGDIGraphics2D(nw, origPoint.x, origPoint.y,
174:                            size.width, size.height);
175:                } else {
176:                    res = new WinGDIGraphics2D(img, gi, size.width, size.height);
177:                }
178:                copyInternalFields(res);
179:                return res;
180:            }
181:
182:            @Override
183:            public GraphicsConfiguration getDeviceConfiguration() {
184:                if (config == null) {
185:                    if (img == null) {
186:                        config = new WinGraphicsConfiguration(nw.getId(),
187:                                getDC());
188:                    } else {
189:                        long hwnd = img.getHWND();
190:                        if (hwnd != 0) {
191:                            config = new WinGraphicsConfiguration(hwnd, getDC());
192:                        } else {
193:                            config = img.getGraphicsConfiguration();
194:                        }
195:                    }
196:                }
197:
198:                return config;
199:            }
200:
201:            @Override
202:            protected void fillMultiRectAreaPaint(MultiRectArea mra) {
203:                if (nativeBrush) {
204:                    fillRects(gi, mra.rect, mra.rect[0] - 1);
205:                } else {
206:                    super .fillMultiRectAreaPaint(mra);
207:                }
208:            }
209:
210:            /***************************************************************************
211:             *
212:             *  Overriden methods
213:             *
214:             ***************************************************************************/
215:
216:            @Override
217:            public void setColor(Color color) {
218:                if (color == null) {
219:                    return;
220:                }
221:                super .setColor(color);
222:                setSolidBrush(gi, color.getRed(), color.getGreen(), color
223:                        .getBlue(), color.getAlpha());
224:                nativeBrush = true;
225:                setStroke(getStroke());
226:            }
227:
228:            //REMARK: It seems that transfrom affects paints too
229:            //REMARK: Think how to implement this
230:            @Override
231:            public void setPaint(Paint paint) {
232:                if (paint == null)
233:                    return;
234:
235:                if (paint instanceof  Color) {
236:                    setColor((Color) paint);
237:                } else {
238:                    this .paint = paint;
239:                    nativeBrush = false;
240:                    if (paint instanceof  GradientPaint) {
241:                        GradientPaint p = (GradientPaint) paint;
242:                        if (!p.isCyclic()) {
243:                            return;
244:                        }
245:                        Color c1 = p.getColor1();
246:                        Color c2 = p.getColor2();
247:                        Point2D p1 = transform.transform(p.getPoint1(), null);
248:                        Point2D p2 = transform.transform(p.getPoint2(), null);
249:                        setLinearGradientBrush(gi, (int) Math.round(p1.getX()),
250:                                (int) Math.round(p1.getY()), c1.getRed(), c1
251:                                        .getGreen(), c1.getBlue(), c1
252:                                        .getAlpha(), (int) Math
253:                                        .round(p2.getX()), (int) Math.round(p2
254:                                        .getY()), c2.getRed(), c2.getGreen(),
255:                                c2.getBlue(), c2.getAlpha(), p.isCyclic());
256:                        nativeBrush = true;
257:                    }
258:                    setStroke(getStroke());
259:                }
260:            }
261:
262:            @Override
263:            public void dispose() {
264:                if (gi == 0) {
265:                    return;
266:                }
267:                if (dstSurf instanceof  GDISurface) {
268:                    dstSurf.dispose();
269:                }
270:                disposeGraphicsInfo(gi);
271:                gi = 0;
272:                super .dispose();
273:                if (debugOutput) {
274:                    System.err.println("WinGDIGraphics2D.dispose()"); //$NON-NLS-1$
275:                }
276:            }
277:
278:            @Override
279:            public void drawGlyphVector(GlyphVector gv, float x, float y) {
280:                jtr.drawGlyphVector(this , gv, x, y);
281:            }
282:
283:            @Override
284:            public void drawString(String str, float x, float y) {
285:                jtr.drawString(this , str, x, y);
286:            }
287:
288:            @Override
289:            public void setStroke(Stroke stroke) {
290:                super .setStroke(stroke);
291:                nativePen = nativeBrush && stroke instanceof  BasicStroke;
292:                if (!nativePen) {
293:                    deletePen(gi);
294:                    return;
295:                }
296:
297:                BasicStroke bs = (BasicStroke) stroke;
298:                float[] dash = bs.getDashArray();
299:                if (dash != null && dash.length % 2 == 1) {
300:                    // If dash len is odd then we need to double the array           
301:                    float[] newDash = new float[dash.length * 2];
302:                    System.arraycopy(dash, 0, newDash, 0, dash.length);
303:                    System
304:                            .arraycopy(dash, 0, newDash, dash.length,
305:                                    dash.length);
306:                    dash = newDash;
307:                }
308:                setPen(gi, bs.getLineWidth(), bs.getEndCap(), bs.getLineJoin(),
309:                        bs.getMiterLimit(), dash, (dash != null) ? dash.length
310:                                : 0, bs.getDashPhase());
311:            }
312:
313:            @Override
314:            public void draw(Shape s) {
315:                if (!nativePen) {
316:                    super .draw(s);
317:                    return;
318:                }
319:
320:                PathIterator pi = s.getPathIterator(transform, 0.5);
321:                int len = getPathArray(pi);
322:                drawShape(gi, pathArray, len, pi.getWindingRule());
323:            }
324:
325:            @Override
326:            public void drawLine(int x1, int y1, int x2, int y2) {
327:                if (!nativePen) {
328:                    super .drawLine(x1, y1, x2, y2);
329:                    return;
330:                }
331:
332:                drawLine(gi, x1, y1, x2, y2);
333:            }
334:
335:            @Override
336:            public void drawRect(int x, int y, int width, int height) {
337:                if (!nativePen) {
338:                    super .drawRect(x, y, width, height);
339:                    return;
340:                }
341:
342:                drawRect(gi, x, y, width, height);
343:            }
344:
345:            @Override
346:            public void drawOval(int x, int y, int width, int height) {
347:                if (!nativePen) {
348:                    super .drawOval(x, y, width, height);
349:                    return;
350:                }
351:
352:                drawOval(gi, x, y, width, height);
353:            }
354:
355:            @Override
356:            public void fill(Shape s) {
357:                if (!nativeBrush || composite != AlphaComposite.SrcOver) {
358:                    super .fill(s);
359:                    return;
360:                }
361:
362:                PathIterator pi = s.getPathIterator(transform, 0.5);
363:                int len = getPathArray(pi);
364:                fillShape(gi, pathArray, len, pi.getWindingRule());
365:            }
366:
367:            @Override
368:            public void fillRect(int x, int y, int width, int height) {
369:                if (!nativeBrush || composite != AlphaComposite.SrcOver) {
370:                    super .fillRect(x, y, width, height);
371:                    return;
372:                }
373:
374:                fillRect(gi, x, y, width, height);
375:            }
376:
377:            /**
378:             * Sets native clip to specified area
379:             * 
380:             * @param clip Transformed clip to set
381:             */
382:            @Override
383:            protected void setTransformedClip(MultiRectArea clip) {
384:                super .setTransformedClip(clip);
385:                if (gi == 0) {
386:                    return;
387:                }
388:                if (clip == null) {
389:                    resetClip(gi);
390:                } else {
391:                    setClip(gi, clip.rect, clip.rect[0] - 1);
392:                }
393:            }
394:
395:            /***************************************************************************
396:             *
397:             *  Transformation methods
398:             *
399:             ***************************************************************************/
400:
401:            @Override
402:            public void setTransform(AffineTransform transform) {
403:                super .setTransform(transform);
404:                if (gi == 0) {
405:                    return;
406:                }
407:
408:                setNativeTransform(gi, matrix);
409:            }
410:
411:            @Override
412:            public void rotate(double theta) {
413:                super .rotate(theta);
414:
415:                setNativeTransform(gi, matrix);
416:            }
417:
418:            @Override
419:            public void rotate(double theta, double x, double y) {
420:                super .rotate(theta, x, y);
421:
422:                setNativeTransform(gi, matrix);
423:            }
424:
425:            @Override
426:            public void scale(double sx, double sy) {
427:                super .scale(sx, sy);
428:
429:                setNativeTransform(gi, matrix);
430:            }
431:
432:            @Override
433:            public void shear(double shx, double shy) {
434:                super .shear(shx, shy);
435:
436:                setNativeTransform(gi, matrix);
437:            }
438:
439:            @Override
440:            public void transform(AffineTransform at) {
441:                super .transform(at);
442:
443:                setNativeTransform(gi, matrix);
444:            }
445:
446:            @Override
447:            public void translate(double tx, double ty) {
448:                super .translate(tx, ty);
449:
450:                setNativeTransform(gi, matrix);
451:            }
452:
453:            @Override
454:            public void translate(int tx, int ty) {
455:                super .translate(tx, ty);
456:
457:                setNativeTransform(gi, matrix);
458:            }
459:
460:            /***************************************************************************
461:             *
462:             *  Class specific methods
463:             *
464:             ***************************************************************************/
465:
466:            /**
467:             * Returns handle to underlying device context
468:             */
469:            public long getDC() {
470:                if (hdc == 0) {
471:                    hdc = getDC(gi);
472:                }
473:                return hdc;
474:            }
475:
476:            /**
477:             * Returns pointer to underlying native GraphicsInfo structure
478:             *  
479:             * @return Pointer to GraphicsInfo structure
480:             */
481:            public long getGraphicsInfo() {
482:                return gi;
483:            }
484:
485:            /***************************************************************************
486:             *
487:             *  Private methods
488:             *
489:             ***************************************************************************/
490:            /**
491:             * Converts PathIterator into array of int values. This array is
492:             * stored in pathArray field.
493:             * Array then used to pass Shape to native drawing routines
494:             * 
495:             * @param pi PathIterator recieved from Shape
496:             * @return Number of result array elements.
497:             */
498:            private int getPathArray(PathIterator pi) {
499:                if (pathArray == null) {
500:                    pathArray = new float[8192];
501:                    pathPoints = new float[6];
502:                }
503:
504:                int i = 0;
505:
506:                while (!pi.isDone()) {
507:                    int seg = pi.currentSegment(pathPoints);
508:                    pathArray[i++] = seg;
509:                    switch (seg) {
510:                    case PathIterator.SEG_MOVETO:
511:                    case PathIterator.SEG_LINETO:
512:                        pathArray[i++] = pathPoints[0];
513:                        pathArray[i++] = pathPoints[1];
514:                        break;
515:                    case PathIterator.SEG_CLOSE:
516:                        break;
517:                    }
518:                    pi.next();
519:                }
520:                return i;
521:            }
522:
523:            /***************************************************************************
524:             *
525:             *  Native methods
526:             *
527:             ***************************************************************************/
528:
529:            // Creates native GraphicsInfo structure
530:            private native long createGraphicsInfo(long hwnd, int x, int y,
531:                    int width, int height);
532:
533:            private native long createGraphicsInfoFor(long hdc, char pageUnit);
534:
535:            static native long createCompatibleImageInfo(long hwnd, int width,
536:                    int height);
537:
538:            static native long createCompatibleImageInfo(byte[] bytes,
539:                    int width, int height);
540:
541:            private native long copyImageInfo(long gi);
542:
543:            // Releases GraphicsInfo structure
544:            static native void disposeGraphicsInfo(long gi);
545:
546:            private native void copyArea(long gi, int x, int y, int width,
547:                    int height, int dx, int dy);
548:
549:            // Methods to set solid and gradient brushes
550:            private native void setSolidBrush(long gi, int r, int g, int b,
551:                    int a);
552:
553:            private native void setLinearGradientBrush(long gi, int x1, int y1,
554:                    int r1, int g1, int b1, int a1, int x2, int y2, int r2,
555:                    int g2, int b2, int a2, boolean cyclic);
556:
557:            // Fills specified rectangles by native brush
558:            private native void fillRects(long gi, int[] vertices, int len);
559:
560:            private native long getDC(long gi);
561:
562:            //Pen manipulation routins
563:            private native boolean setPen(long gi, float lineWidth, int endCap,
564:                    int lineJoin, float miterLimit, float[] dashArray,
565:                    int dashLen, float dashPhase);
566:
567:            private native void deletePen(long gi);
568:
569:            // Draw/Fill Shape/GraphicsPath
570:            private native void drawShape(long gi, float[] path, int len,
571:                    int winding);
572:
573:            private native void fillShape(long gi, float[] path, int len,
574:                    int winding);
575:
576:            // Draw native primitives
577:            private native void drawLine(long gi, int x1, int y1, int x2, int y2);
578:
579:            private native void drawRect(long gi, int x, int y, int width,
580:                    int height);
581:
582:            private native void drawOval(long gi, int x, int y, int width,
583:                    int height);
584:
585:            // Fill native primitives
586:            private native void fillRect(long gi, int x, int y, int width,
587:                    int height);
588:
589:            @Override
590:            public void setRenderingHint(RenderingHints.Key key, Object value) {
591:                super .setRenderingHint(key, value);
592:                if (!FontManager.IS_FONTLIB) {
593:                    Object val = this 
594:                            .getRenderingHint(RenderingHints.KEY_ANTIALIASING);
595:                    /*
596:                    if (val == RenderingHints.VALUE_ANTIALIAS_ON) {
597:                        NativeFont.setAntialiasing(gi,true);
598:                    } else {
599:                        NativeFont.setAntialiasing(gi,false);
600:                    }
601:                     */
602:                }
603:            }
604:
605:            @Override
606:            public void setRenderingHints(Map<?, ?> hints) {
607:                super .setRenderingHints(hints);
608:                if (!FontManager.IS_FONTLIB) {
609:                    Object value = this 
610:                            .getRenderingHint(RenderingHints.KEY_ANTIALIASING);
611:                    /*
612:                    if (value == RenderingHints.VALUE_ANTIALIAS_ON) {
613:                        NativeFont.setAntialiasing(gi,true);
614:                    } else {
615:                        NativeFont.setAntialiasing(gi,false);
616:                    }
617:                     */
618:                }
619:            }
620:
621:            // Set native clip
622:            private native void setClip(long gi, int[] vertices, int len);
623:
624:            private native void resetClip(long gi);
625:
626:            // Update native affine transform matrix
627:            private native void setNativeTransform(long gi, double[] matrix);
628:
629:        }
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