author | ceisserer |
Fri, 28 May 2010 11:37:44 -0700 | |
changeset 5579 | 1a5e995a710b |
child 6374 | e214162c907e |
permissions | -rw-r--r-- |
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/* |
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* Copyright 2010 Sun Microsystems, Inc. All Rights Reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Sun designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Sun in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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* CA 95054 USA or visit www.sun.com if you need additional information or |
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* have any questions. |
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*/ |
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package sun.java2d.xr; |
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import java.awt.*; |
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import java.awt.MultipleGradientPaint.*; |
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import java.awt.geom.*; |
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import java.awt.image.*; |
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import sun.java2d.*; |
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import sun.java2d.loops.*; |
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import sun.java2d.pipe.*; |
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abstract class XRPaints { |
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static XRCompositeManager xrCompMan; |
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static final XRGradient xrGradient = new XRGradient(); |
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static final XRLinearGradient xrLinearGradient = new XRLinearGradient(); |
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static final XRRadialGradient xrRadialGradient = new XRRadialGradient(); |
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static final XRTexture xrTexture = new XRTexture(); |
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public static void register(XRCompositeManager xrComp) { |
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xrCompMan = xrComp; |
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} |
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private static XRPaints getXRPaint(SunGraphics2D sg2d) { |
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switch (sg2d.paintState) { |
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case SunGraphics2D.PAINT_GRADIENT: |
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return xrGradient; |
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case SunGraphics2D.PAINT_LIN_GRADIENT: |
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return xrLinearGradient; |
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case SunGraphics2D.PAINT_RAD_GRADIENT: |
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return xrRadialGradient; |
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case SunGraphics2D.PAINT_TEXTURE: |
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return xrTexture; |
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default: |
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return null; |
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} |
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} |
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/** |
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* Attempts to locate an implementation corresponding to the paint state of |
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* the provided SunGraphics2D object. If no implementation can be found, or |
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* if the paint cannot be accelerated under the conditions of the |
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* SunGraphics2D, this method returns false; otherwise, returns true. |
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*/ |
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static boolean isValid(SunGraphics2D sg2d) { |
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XRPaints impl = getXRPaint(sg2d); |
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return (impl != null && impl.isPaintValid(sg2d)); |
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} |
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static void setPaint(SunGraphics2D sg2d, Paint paint) { |
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XRPaints impl = getXRPaint(sg2d); |
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if (impl != null) { |
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impl.setXRPaint(sg2d, paint); |
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} |
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} |
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/** |
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* Returns true if this implementation is able to accelerate the Paint |
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* object associated with, and under the conditions of, the provided |
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* SunGraphics2D instance; otherwise returns false. |
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*/ |
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abstract boolean isPaintValid(SunGraphics2D sg2d); |
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abstract void setXRPaint(SunGraphics2D sg2d, Paint paint); |
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private static class XRGradient extends XRPaints { |
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private XRGradient() { |
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} |
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/** |
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* There are no restrictions for accelerating GradientPaint, so this |
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* method always returns true. |
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*/ |
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@Override |
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boolean isPaintValid(SunGraphics2D sg2d) { |
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return true; |
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} |
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void setXRPaint(SunGraphics2D sg2d, Paint pt) { |
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GradientPaint paint = (GradientPaint) pt; |
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int[] pixels = convertToIntArgbPixels(new Color[] { paint.getColor1(), paint.getColor2() }, false); |
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float fractions[] = new float[2]; |
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fractions[0] = 0; |
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fractions[1] = 1; |
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Point2D pt1 = paint.getPoint1(); |
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Point2D pt2 = paint.getPoint2(); |
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AffineTransform at = (AffineTransform) sg2d.transform.clone(); |
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try { |
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at.invert(); |
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} catch (NoninvertibleTransformException ex) { |
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at.setToIdentity(); |
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} |
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|
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int repeat = paint.isCyclic() ? XRUtils.RepeatReflect : XRUtils.RepeatPad; |
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|
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XRBackend con = xrCompMan.getBackend(); |
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int gradient = con.createLinearGradient(pt1, pt2, fractions, pixels, repeat, at); |
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xrCompMan.setGradientPaint(new XRSurfaceData.XRInternalSurfaceData(con, gradient, at)); |
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} |
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} |
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|
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public int getGradientLength(Point2D pt1, Point2D pt2) { |
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double xDiff = Math.max(pt1.getX(), pt2.getX()) - Math.min(pt1.getX(), pt2.getX()); |
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double yDiff = Math.max(pt1.getY(), pt2.getY()) - Math.min(pt1.getY(), pt2.getY()); |
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return (int) Math.ceil(Math.sqrt(xDiff*xDiff + yDiff*yDiff)); |
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} |
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private static class XRLinearGradient extends XRPaints { |
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@Override |
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boolean isPaintValid(SunGraphics2D sg2d) { |
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return true; |
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} |
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@Override |
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void setXRPaint(SunGraphics2D sg2d, Paint pt) { |
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LinearGradientPaint paint = (LinearGradientPaint) pt; |
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boolean linear = (paint.getColorSpace() == ColorSpaceType.LINEAR_RGB); |
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|
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Color[] colors = paint.getColors(); |
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Point2D pt1 = paint.getStartPoint(); |
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Point2D pt2 = paint.getEndPoint(); |
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|
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AffineTransform at = paint.getTransform(); |
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at.preConcatenate(sg2d.transform); |
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|
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int repeat = XRUtils.getRepeatForCycleMethod(paint.getCycleMethod()); |
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float[] fractions = paint.getFractions(); |
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int[] pixels = convertToIntArgbPixels(colors, linear); |
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|
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try { |
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at.invert(); |
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} catch (NoninvertibleTransformException ex) { |
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ex.printStackTrace(); |
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} |
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|
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XRBackend con = xrCompMan.getBackend(); |
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int gradient = con.createLinearGradient(pt1, pt2, fractions, pixels, repeat, at); |
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xrCompMan.setGradientPaint(new XRSurfaceData.XRInternalSurfaceData(con, gradient, at)); |
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} |
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} |
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|
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private static class XRRadialGradient extends XRPaints { |
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|
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@Override |
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boolean isPaintValid(SunGraphics2D sg2d) { |
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RadialGradientPaint grad = (RadialGradientPaint) sg2d.paint; |
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return grad.getFocusPoint().equals(grad.getCenterPoint()); |
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} |
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|
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@Override |
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void setXRPaint(SunGraphics2D sg2d, Paint pt) { |
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RadialGradientPaint paint = (RadialGradientPaint) pt; |
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boolean linear = (paint.getColorSpace() == ColorSpaceType.LINEAR_RGB); |
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Color[] colors = paint.getColors(); |
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Point2D center = paint.getCenterPoint(); |
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Point2D focus = paint.getFocusPoint(); |
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192 |
|
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int repeat = XRUtils.getRepeatForCycleMethod(paint.getCycleMethod()); |
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float[] fractions = paint.getFractions(); |
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int[] pixels = convertToIntArgbPixels(colors, linear); |
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float radius = paint.getRadius(); |
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197 |
|
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// save original (untransformed) center and focus points |
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double cx = center.getX(); |
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double cy = center.getY(); |
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double fx = focus.getX(); |
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double fy = focus.getY(); |
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203 |
|
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AffineTransform at = paint.getTransform(); |
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at.preConcatenate(sg2d.transform); |
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focus = at.transform(focus, focus); |
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207 |
|
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// transform unit circle to gradient coords; we start with the |
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209 |
// unit circle (center=(0,0), focus on positive x-axis, radius=1) |
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// and then transform into gradient space |
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at.translate(cx, cy); |
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at.rotate(fx - cx, fy - cy); |
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// at.scale(radius, radius); |
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214 |
|
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// invert to get mapping from device coords to unit circle |
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216 |
try { |
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217 |
at.invert(); |
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218 |
} catch (Exception e) { |
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219 |
at.setToScale(0.0, 0.0); |
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220 |
} |
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focus = at.transform(focus, focus); |
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222 |
|
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// clamp the focus point so that it does not rest on, or outside |
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// of, the circumference of the gradient circle |
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fx = Math.min(focus.getX(), 0.99); |
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226 |
|
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227 |
XRBackend con = xrCompMan.getBackend(); |
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int gradient = con.createRadialGradient(new Point2D.Float(0, 0), new Point2D.Float(0, 0), 0, radius, fractions, pixels, repeat, at); |
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xrCompMan.setGradientPaint(new XRSurfaceData.XRInternalSurfaceData(con, gradient, at)); |
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230 |
} |
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231 |
} |
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232 |
|
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233 |
private static class XRTexture extends XRPaints { |
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234 |
|
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235 |
@Override |
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236 |
boolean isPaintValid(SunGraphics2D sg2d) { |
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TexturePaint paint = (TexturePaint) sg2d.paint; |
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BufferedImage bi = paint.getImage(); |
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239 |
XRSurfaceData dstData = (XRSurfaceData) sg2d.getDestSurface(); |
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240 |
|
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SurfaceData srcData = dstData.getSourceSurfaceData(bi, SunGraphics2D.TRANSFORM_ISIDENT, CompositeType.SrcOver, null); |
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242 |
if (!(srcData instanceof XRSurfaceData)) { |
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243 |
// REMIND: this is a hack that attempts to cache the system |
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244 |
// memory image from the TexturePaint instance into an |
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245 |
// OpenGL texture... |
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246 |
srcData = dstData.getSourceSurfaceData(bi, SunGraphics2D.TRANSFORM_ISIDENT, CompositeType.SrcOver, null); |
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if (!(srcData instanceof XRSurfaceData)) { |
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return false; |
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} |
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} |
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|
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return true; |
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} |
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|
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@Override |
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void setXRPaint(SunGraphics2D sg2d, Paint pt) { |
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TexturePaint paint = (TexturePaint) pt; |
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|
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BufferedImage bi = paint.getImage(); |
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SurfaceData dstData = sg2d.surfaceData; |
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SurfaceData srcData = dstData.getSourceSurfaceData(bi, SunGraphics2D.TRANSFORM_ISIDENT, CompositeType.SrcOver, null); |
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|
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// REMIND: this hack tries to ensure that we have a cached texture |
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if (!(srcData instanceof XRSurfaceData)) { |
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srcData = dstData.getSourceSurfaceData(paint.getImage(), SunGraphics2D.TRANSFORM_ISIDENT, CompositeType.SrcOver, null); |
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if (!(srcData instanceof XRSurfaceData)) { |
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throw new InternalError("Surface not cachable"); |
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} |
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} |
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|
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XRSurfaceData x11SrcData = (XRSurfaceData) srcData; |
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|
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AffineTransform at = (AffineTransform) sg2d.transform.clone(); |
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Rectangle2D anchor = paint.getAnchorRect(); |
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at.translate(anchor.getX(), anchor.getY()); |
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at.scale(anchor.getWidth() / ((double) bi.getWidth()), anchor.getHeight() / ((double) bi.getHeight())); |
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|
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try { |
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at.invert(); |
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} catch (NoninvertibleTransformException ex) { |
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at.setToIdentity(); /* TODO: Right thing to do in this case? */ |
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} |
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|
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x11SrcData.validateAsSource(at, XRUtils.RepeatNormal, XRUtils.ATransOpToXRQuality(sg2d.interpolationType)); |
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xrCompMan.setTexturePaint(((XRSurfaceData) srcData)); |
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} |
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} |
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|
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public int[] convertToIntArgbPixels(Color[] colors, boolean linear) { |
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int[] pixels = new int[colors.length]; |
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for (int i = 0; i < colors.length; i++) { |
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pixels[i] = colorToIntArgbPixel(colors[i], linear); |
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} |
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return pixels; |
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} |
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|
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public int colorToIntArgbPixel(Color c, boolean linear) { |
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int rgb = c.getRGB(); |
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|
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int a = rgb >>> 24; |
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int r = (rgb >> 16) & 0xff; |
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int g = (rgb >> 8) & 0xff; |
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int b = (rgb) & 0xff; |
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if (linear) { |
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r = BufferedPaints.convertSRGBtoLinearRGB(r); |
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g = BufferedPaints.convertSRGBtoLinearRGB(g); |
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b = BufferedPaints.convertSRGBtoLinearRGB(b); |
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} |
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|
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a *= xrCompMan.getExtraAlpha(); |
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|
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return ((a << 24) | (r << 16) | (g << 8) | (b)); |
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} |
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} |