/*
* Copyright (c) 2013, 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.
*
* 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.
*
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*/
/**
* @test
* @bug 8015606
* @summary Test verifies whether a text is rendered correctly to
* a custom buffered image.
*
* @run main RenderToCustomBufferTest
*/
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.Transparency;
import java.awt.color.ColorSpace;
import java.awt.image.BufferedImage;
import java.awt.image.ColorModel;
import java.awt.image.ComponentColorModel;
import java.awt.image.DataBuffer;
import java.awt.image.WritableRaster;
public class RenderToCustomBufferTest {
public static void main(String[] args) {
final BufferedImage dst_custom = createCustomBuffer();
final BufferedImage dst_dcm = new BufferedImage(width, height,
BufferedImage.TYPE_INT_RGB);
renderTo(dst_custom);
renderTo(dst_dcm);
check(dst_custom, dst_dcm);
}
private static void check(BufferedImage a, BufferedImage b) {
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
int pa = a.getRGB(x, y);
int pb = b.getRGB(x, y);
if (pa != pb) {
String msg = String.format(
"Point [%d, %d] has different colors: %08X and %08X",
x, y, pa, pb);
throw new RuntimeException("Test failed: " + msg);
}
}
}
}
private static BufferedImage createCustomBuffer() {
ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
ColorModel cm = new ComponentColorModel(cs, false, false,
Transparency.OPAQUE, DataBuffer.TYPE_FLOAT);
WritableRaster wr = cm.createCompatibleWritableRaster(width, height);
return new BufferedImage(cm, wr, false, null);
}
private static void renderTo(BufferedImage dst) {
System.out.println("The buffer: " + dst);
Graphics2D g = dst.createGraphics();
final int w = dst.getWidth();
final int h = dst.getHeight();
g.setColor(Color.blue);
g.fillRect(0, 0, w, h);
g.setColor(Color.red);
Font f = g.getFont();
g.setFont(f.deriveFont(48f));
g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
// NB: this clip ctriggers the problem
g.setClip(50, 50, 200, 100);
g.drawString("AA Text", 52, 90);
g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
// NB: this clip ctriggers the problem
g.setClip(50, 100, 100, 100);
g.drawString("Text", 52, 148);
g.dispose();
}
private static final int width = 230;
private static final int height = 150;
}