89 lines
3.5 KiB
Java
89 lines
3.5 KiB
Java
/*
|
|
* Copyright 2016 JetBrains s.r.o.
|
|
* 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 8169202
|
|
* @summary verify font fallback for surrogate pairs on macOS
|
|
* @requires os.family == "mac"
|
|
*/
|
|
|
|
import java.awt.Color;
|
|
import java.awt.Font;
|
|
import java.awt.Graphics2D;
|
|
import java.awt.font.GlyphVector;
|
|
import java.awt.image.BufferedImage;
|
|
import java.util.function.Consumer;
|
|
|
|
public class SurrogatesFallbackTest {
|
|
private static final int CHARACTER = 0x1d400; // MATHEMATICAL BOLD CAPITAL A
|
|
private static final Font FONT = new Font("Menlo", // expected to fallback to STIXGeneral for the character above
|
|
Font.PLAIN,
|
|
12);
|
|
private static final int IMAGE_WIDTH = 20;
|
|
private static final int IMAGE_HEIGHT = 20;
|
|
private static final int GLYPH_X = 5;
|
|
private static final int GLYPH_Y = 15;
|
|
|
|
public static void main(String[] args) {
|
|
BufferedImage noGlyph = createImage(g -> {});
|
|
BufferedImage missingGlyph = createImage(g -> {
|
|
GlyphVector gv = FONT.createGlyphVector(g.getFontRenderContext(), new int[]{FONT.getMissingGlyphCode()});
|
|
g.drawGlyphVector(gv, GLYPH_X, GLYPH_Y);
|
|
});
|
|
BufferedImage surrogateCharGlyph = createImage(g -> {
|
|
g.setFont(FONT);
|
|
g.drawString(new String(Character.toChars(CHARACTER)), GLYPH_X, GLYPH_Y);
|
|
});
|
|
|
|
if (imagesAreEqual(surrogateCharGlyph, noGlyph)) {
|
|
throw new RuntimeException("Character was not rendered");
|
|
}
|
|
if (imagesAreEqual(surrogateCharGlyph, missingGlyph)) {
|
|
throw new RuntimeException("Character is rendered as missing");
|
|
}
|
|
}
|
|
|
|
private static BufferedImage createImage(Consumer<Graphics2D> drawing) {
|
|
BufferedImage image = new BufferedImage(IMAGE_WIDTH, IMAGE_HEIGHT, BufferedImage.TYPE_INT_RGB);
|
|
Graphics2D g = image.createGraphics();
|
|
g.setColor(Color.white);
|
|
g.fillRect(0, 0, IMAGE_WIDTH, IMAGE_HEIGHT);
|
|
g.setColor(Color.black);
|
|
drawing.accept(g);
|
|
g.dispose();
|
|
return image;
|
|
}
|
|
|
|
private static boolean imagesAreEqual(BufferedImage i1, BufferedImage i2) {
|
|
if (i1.getWidth() != i2.getWidth() || i1.getHeight() != i2.getHeight()) return false;
|
|
for (int i = 0; i < i1.getWidth(); i++) {
|
|
for (int j = 0; j < i1.getHeight(); j++) {
|
|
if (i1.getRGB(i, j) != i2.getRGB(i, j)) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
}
|
|
|