/* * 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"); } } }