| /* |
| * Copyright (c) 1998, 2007, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.java2d.pipe; |
| |
| import sun.java2d.SunGraphics2D; |
| import sun.java2d.SurfaceData; |
| import java.awt.Rectangle; |
| import java.awt.Shape; |
| import java.awt.BasicStroke; |
| import java.awt.geom.PathIterator; |
| import java.awt.geom.AffineTransform; |
| import java.awt.geom.Rectangle2D; |
| import sun.awt.SunHints; |
| |
| /** |
| * This class is used to convert raw geometry into a span iterator |
| * object using a simple flattening polygon scan converter. |
| * The iterator can be passed on to special SpanFiller loops to |
| * perform the actual rendering. |
| */ |
| public abstract class SpanShapeRenderer implements ShapeDrawPipe { |
| final static RenderingEngine RenderEngine = RenderingEngine.getInstance(); |
| |
| public static class Composite extends SpanShapeRenderer { |
| CompositePipe comppipe; |
| |
| public Composite(CompositePipe pipe) { |
| comppipe = pipe; |
| } |
| |
| public Object startSequence(SunGraphics2D sg, Shape s, |
| Rectangle devR, int[] bbox) { |
| return comppipe.startSequence(sg, s, devR, bbox); |
| } |
| |
| public void renderBox(Object ctx, int x, int y, int w, int h) { |
| comppipe.renderPathTile(ctx, null, 0, w, x, y, w, h); |
| } |
| |
| public void endSequence(Object ctx) { |
| comppipe.endSequence(ctx); |
| } |
| } |
| |
| public static class Simple extends SpanShapeRenderer |
| implements LoopBasedPipe |
| { |
| public Object startSequence(SunGraphics2D sg, Shape s, |
| Rectangle devR, int[] bbox) { |
| return sg; |
| } |
| |
| public void renderBox(Object ctx, int x, int y, int w, int h) { |
| SunGraphics2D sg2d = (SunGraphics2D) ctx; |
| SurfaceData sd = sg2d.getSurfaceData(); |
| sg2d.loops.fillRectLoop.FillRect(sg2d, sd, x, y, w, h); |
| } |
| |
| public void endSequence(Object ctx) { |
| } |
| } |
| |
| public void draw(SunGraphics2D sg, Shape s) { |
| if (sg.stroke instanceof BasicStroke) { |
| ShapeSpanIterator sr = LoopPipe.getStrokeSpans(sg, s); |
| try { |
| renderSpans(sg, sg.getCompClip(), s, sr); |
| } finally { |
| sr.dispose(); |
| } |
| } else { |
| fill(sg, sg.stroke.createStrokedShape(s)); |
| } |
| } |
| |
| public static final int NON_RECTILINEAR_TRANSFORM_MASK = |
| (AffineTransform.TYPE_GENERAL_TRANSFORM | |
| AffineTransform.TYPE_GENERAL_ROTATION); |
| |
| public void fill(SunGraphics2D sg, Shape s) { |
| if (s instanceof Rectangle2D && |
| (sg.transform.getType() & NON_RECTILINEAR_TRANSFORM_MASK) == 0) |
| { |
| renderRect(sg, (Rectangle2D) s); |
| return; |
| } |
| |
| Region clipRegion = sg.getCompClip(); |
| ShapeSpanIterator sr = LoopPipe.getFillSSI(sg); |
| try { |
| sr.setOutputArea(clipRegion); |
| sr.appendPath(s.getPathIterator(sg.transform)); |
| renderSpans(sg, clipRegion, s, sr); |
| } finally { |
| sr.dispose(); |
| } |
| } |
| |
| public abstract Object startSequence(SunGraphics2D sg, Shape s, |
| Rectangle devR, int[] bbox); |
| |
| public abstract void renderBox(Object ctx, int x, int y, int w, int h); |
| |
| public abstract void endSequence(Object ctx); |
| |
| public void renderRect(SunGraphics2D sg, Rectangle2D r) { |
| double corners[] = { |
| r.getX(), r.getY(), r.getWidth(), r.getHeight(), |
| }; |
| corners[2] += corners[0]; |
| corners[3] += corners[1]; |
| if (corners[2] <= corners[0] || corners[3] <= corners[1]) { |
| return; |
| } |
| sg.transform.transform(corners, 0, corners, 0, 2); |
| if (corners[2] < corners[0]) { |
| double t = corners[2]; |
| corners[2] = corners[0]; |
| corners[0] = t; |
| } |
| if (corners[3] < corners[1]) { |
| double t = corners[3]; |
| corners[3] = corners[1]; |
| corners[1] = t; |
| } |
| int abox[] = { |
| (int) corners[0], |
| (int) corners[1], |
| (int) corners[2], |
| (int) corners[3], |
| }; |
| Rectangle devR = new Rectangle(abox[0], abox[1], |
| abox[2] - abox[0], |
| abox[3] - abox[1]); |
| Region clipRegion = sg.getCompClip(); |
| clipRegion.clipBoxToBounds(abox); |
| if (abox[0] >= abox[2] || abox[1] >= abox[3]) { |
| return; |
| } |
| Object context = startSequence(sg, r, devR, abox); |
| if (clipRegion.isRectangular()) { |
| renderBox(context, abox[0], abox[1], |
| abox[2] - abox[0], |
| abox[3] - abox[1]); |
| } else { |
| SpanIterator sr = clipRegion.getSpanIterator(abox); |
| while (sr.nextSpan(abox)) { |
| renderBox(context, abox[0], abox[1], |
| abox[2] - abox[0], |
| abox[3] - abox[1]); |
| } |
| } |
| endSequence(context); |
| } |
| |
| public void renderSpans(SunGraphics2D sg, Region clipRegion, Shape s, |
| ShapeSpanIterator sr) |
| { |
| Object context = null; |
| int abox[] = new int[4]; |
| try { |
| sr.getPathBox(abox); |
| Rectangle devR = new Rectangle(abox[0], abox[1], |
| abox[2] - abox[0], |
| abox[3] - abox[1]); |
| clipRegion.clipBoxToBounds(abox); |
| if (abox[0] >= abox[2] || abox[1] >= abox[3]) { |
| return; |
| } |
| sr.intersectClipBox(abox[0], abox[1], abox[2], abox[3]); |
| context = startSequence(sg, s, devR, abox); |
| |
| spanClipLoop(context, sr, clipRegion, abox); |
| |
| } finally { |
| if (context != null) { |
| endSequence(context); |
| } |
| } |
| } |
| |
| public void spanClipLoop(Object ctx, SpanIterator sr, |
| Region r, int[] abox) { |
| if (!r.isRectangular()) { |
| sr = r.filter(sr); |
| } |
| while (sr.nextSpan(abox)) { |
| int x = abox[0]; |
| int y = abox[1]; |
| renderBox(ctx, x, y, abox[2] - x, abox[3] - y); |
| } |
| } |
| } |
