russell@unturf.com
0a580b313d
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
72 lines
2.9 KiB
Java
72 lines
2.9 KiB
Java
/*
|
|
* Copyright (c) 2025, 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.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
/*
|
|
* @test
|
|
* @bug 8167268
|
|
* @summary Checks behavior of GlyphVector.getGlyphMetrics(int).
|
|
*/
|
|
|
|
import java.awt.Font;
|
|
import java.awt.Rectangle;
|
|
import java.awt.font.FontRenderContext;
|
|
import java.awt.font.GlyphMetrics;
|
|
import java.awt.font.GlyphVector;
|
|
import java.awt.font.TextLayout;
|
|
import java.awt.geom.Rectangle2D;
|
|
|
|
public class GlyphMetricsTest {
|
|
|
|
public static void main(String[] args) {
|
|
|
|
String text = "The quick brown \r\n fox JUMPS over \t the lazy dog.";
|
|
Font font = new Font(Font.DIALOG, Font.PLAIN, 60);
|
|
FontRenderContext frc = new FontRenderContext(null, true, true);
|
|
GlyphVector gv = font.createGlyphVector(frc, text);
|
|
|
|
for (int i = 0; i < gv.getNumGlyphs(); i++) {
|
|
|
|
GlyphMetrics gm = gv.getGlyphMetrics(i);
|
|
Rectangle2D bounds = gm.getBounds2D();
|
|
assertEqual(gm.getAdvance(), gm.getAdvanceX(), 0, "advance x", i);
|
|
assertEqual(0, gm.getAdvanceY(), 0, "advance y", i);
|
|
|
|
// assumes one glyph per char in the test text
|
|
String character = text.substring(i, i + 1);
|
|
TextLayout layout = new TextLayout(character, font, frc);
|
|
Rectangle pixelBounds = layout.getPixelBounds(frc, 0, 0);
|
|
assertEqual(pixelBounds.getWidth(), bounds.getWidth(), 2, "width", i);
|
|
assertEqual(pixelBounds.getHeight(), bounds.getHeight(), 2, "height", i);
|
|
assertEqual(pixelBounds.getX(), bounds.getX(), 2, "x", i);
|
|
assertEqual(pixelBounds.getY(), bounds.getY(), 2, "y", i);
|
|
}
|
|
}
|
|
|
|
private static void assertEqual(double d1, double d2, double variance,
|
|
String scenario, int index) {
|
|
if (Math.abs(d1 - d2) > variance) {
|
|
String msg = String.format("%s for index %d: %f != %f", scenario, index, d1, d2);
|
|
throw new RuntimeException(msg);
|
|
}
|
|
}
|
|
}
|