| /* |
| * Copyright (c) 2007, 2017, 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.marlin; |
| |
| import java.awt.geom.AffineTransform; |
| import java.awt.geom.Path2D; |
| |
| final class DTransformingPathConsumer2D { |
| |
| DTransformingPathConsumer2D() { |
| // used by DRendererContext |
| } |
| |
| // recycled DPathConsumer2D instance from wrapPath2d() |
| private final Path2DWrapper wp_Path2DWrapper = new Path2DWrapper(); |
| |
| DPathConsumer2D wrapPath2d(Path2D.Double p2d) |
| { |
| return wp_Path2DWrapper.init(p2d); |
| } |
| |
| // recycled DPathConsumer2D instances from deltaTransformConsumer() |
| private final DeltaScaleFilter dt_DeltaScaleFilter = new DeltaScaleFilter(); |
| private final DeltaTransformFilter dt_DeltaTransformFilter = new DeltaTransformFilter(); |
| |
| DPathConsumer2D deltaTransformConsumer(DPathConsumer2D out, |
| AffineTransform at) |
| { |
| if (at == null) { |
| return out; |
| } |
| double mxx = at.getScaleX(); |
| double mxy = at.getShearX(); |
| double myx = at.getShearY(); |
| double myy = at.getScaleY(); |
| |
| if (mxy == 0.0d && myx == 0.0d) { |
| if (mxx == 1.0d && myy == 1.0d) { |
| return out; |
| } else { |
| return dt_DeltaScaleFilter.init(out, mxx, myy); |
| } |
| } else { |
| return dt_DeltaTransformFilter.init(out, mxx, mxy, myx, myy); |
| } |
| } |
| |
| // recycled DPathConsumer2D instances from inverseDeltaTransformConsumer() |
| private final DeltaScaleFilter iv_DeltaScaleFilter = new DeltaScaleFilter(); |
| private final DeltaTransformFilter iv_DeltaTransformFilter = new DeltaTransformFilter(); |
| |
| DPathConsumer2D inverseDeltaTransformConsumer(DPathConsumer2D out, |
| AffineTransform at) |
| { |
| if (at == null) { |
| return out; |
| } |
| double mxx = at.getScaleX(); |
| double mxy = at.getShearX(); |
| double myx = at.getShearY(); |
| double myy = at.getScaleY(); |
| |
| if (mxy == 0.0d && myx == 0.0d) { |
| if (mxx == 1.0d && myy == 1.0d) { |
| return out; |
| } else { |
| return iv_DeltaScaleFilter.init(out, 1.0d/mxx, 1.0d/myy); |
| } |
| } else { |
| double det = mxx * myy - mxy * myx; |
| return iv_DeltaTransformFilter.init(out, |
| myy / det, |
| -mxy / det, |
| -myx / det, |
| mxx / det); |
| } |
| } |
| |
| |
| static final class DeltaScaleFilter implements DPathConsumer2D { |
| private DPathConsumer2D out; |
| private double sx, sy; |
| |
| DeltaScaleFilter() {} |
| |
| DeltaScaleFilter init(DPathConsumer2D out, |
| double mxx, double myy) |
| { |
| this.out = out; |
| sx = mxx; |
| sy = myy; |
| return this; // fluent API |
| } |
| |
| @Override |
| public void moveTo(double x0, double y0) { |
| out.moveTo(x0 * sx, y0 * sy); |
| } |
| |
| @Override |
| public void lineTo(double x1, double y1) { |
| out.lineTo(x1 * sx, y1 * sy); |
| } |
| |
| @Override |
| public void quadTo(double x1, double y1, |
| double x2, double y2) |
| { |
| out.quadTo(x1 * sx, y1 * sy, |
| x2 * sx, y2 * sy); |
| } |
| |
| @Override |
| public void curveTo(double x1, double y1, |
| double x2, double y2, |
| double x3, double y3) |
| { |
| out.curveTo(x1 * sx, y1 * sy, |
| x2 * sx, y2 * sy, |
| x3 * sx, y3 * sy); |
| } |
| |
| @Override |
| public void closePath() { |
| out.closePath(); |
| } |
| |
| @Override |
| public void pathDone() { |
| out.pathDone(); |
| } |
| |
| @Override |
| public long getNativeConsumer() { |
| return 0; |
| } |
| } |
| |
| static final class DeltaTransformFilter implements DPathConsumer2D { |
| private DPathConsumer2D out; |
| private double mxx, mxy, myx, myy; |
| |
| DeltaTransformFilter() {} |
| |
| DeltaTransformFilter init(DPathConsumer2D out, |
| double mxx, double mxy, |
| double myx, double myy) |
| { |
| this.out = out; |
| this.mxx = mxx; |
| this.mxy = mxy; |
| this.myx = myx; |
| this.myy = myy; |
| return this; // fluent API |
| } |
| |
| @Override |
| public void moveTo(double x0, double y0) { |
| out.moveTo(x0 * mxx + y0 * mxy, |
| x0 * myx + y0 * myy); |
| } |
| |
| @Override |
| public void lineTo(double x1, double y1) { |
| out.lineTo(x1 * mxx + y1 * mxy, |
| x1 * myx + y1 * myy); |
| } |
| |
| @Override |
| public void quadTo(double x1, double y1, |
| double x2, double y2) |
| { |
| out.quadTo(x1 * mxx + y1 * mxy, |
| x1 * myx + y1 * myy, |
| x2 * mxx + y2 * mxy, |
| x2 * myx + y2 * myy); |
| } |
| |
| @Override |
| public void curveTo(double x1, double y1, |
| double x2, double y2, |
| double x3, double y3) |
| { |
| out.curveTo(x1 * mxx + y1 * mxy, |
| x1 * myx + y1 * myy, |
| x2 * mxx + y2 * mxy, |
| x2 * myx + y2 * myy, |
| x3 * mxx + y3 * mxy, |
| x3 * myx + y3 * myy); |
| } |
| |
| @Override |
| public void closePath() { |
| out.closePath(); |
| } |
| |
| @Override |
| public void pathDone() { |
| out.pathDone(); |
| } |
| |
| @Override |
| public long getNativeConsumer() { |
| return 0; |
| } |
| } |
| |
| static final class Path2DWrapper implements DPathConsumer2D { |
| private Path2D.Double p2d; |
| |
| Path2DWrapper() {} |
| |
| Path2DWrapper init(Path2D.Double p2d) { |
| this.p2d = p2d; |
| return this; |
| } |
| |
| @Override |
| public void moveTo(double x0, double y0) { |
| p2d.moveTo(x0, y0); |
| } |
| |
| @Override |
| public void lineTo(double x1, double y1) { |
| p2d.lineTo(x1, y1); |
| } |
| |
| @Override |
| public void closePath() { |
| p2d.closePath(); |
| } |
| |
| @Override |
| public void pathDone() {} |
| |
| @Override |
| public void curveTo(double x1, double y1, |
| double x2, double y2, |
| double x3, double y3) |
| { |
| p2d.curveTo(x1, y1, x2, y2, x3, y3); |
| } |
| |
| @Override |
| public void quadTo(double x1, double y1, double x2, double y2) { |
| p2d.quadTo(x1, y1, x2, y2); |
| } |
| |
| @Override |
| public long getNativeConsumer() { |
| throw new InternalError("Not using a native peer"); |
| } |
| } |
| } |