102 lines
4.3 KiB
Java
102 lines
4.3 KiB
Java
/*
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* Copyright (c) 2008, 2011, Oracle and/or its affiliates. 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.
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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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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@test
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@bug 6686365 7017637
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@summary Confirm that styling does not affect metrics of zero advance glyphs
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*/
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import java.awt.*;
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import java.awt.image.*;
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public class BoldSpace {
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public static void main(String[] s) {
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BufferedImage bi = new BufferedImage(100, 100, BufferedImage.TYPE_INT_ARGB);
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String errMsg = "ZWJ Space char should have 0 advance\n";
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Graphics g = bi.getGraphics();
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// It turns out that some fonts inexplicably treat this as
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// a standard character. In this 14 pt font, if we see an advance
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// that's clearly bigger than we'd have introduced in bolding we'll
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// not error out this test, presuming that its a consequence of
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// the actual font data. A Linux font 'TLwg Type Bold' is the case
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// in point.
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int errorMargin = 4;
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g.setFont(new Font("monospaced", Font.BOLD, 14));
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FontMetrics fm = g.getFontMetrics();
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System.out.println("Bold: " + fm.charWidth('\u200b'));
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int cwid = fm.charWidth('\u200b');
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if (cwid > 0 && cwid < errorMargin) {
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throw new RuntimeException(errMsg);
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}
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((Graphics2D)g).setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
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RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_HRGB);
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fm = g.getFontMetrics();
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System.out.println("Bold + LCD: "+fm.charWidth('\u200b'));
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cwid = fm.charWidth('\u200b');
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if (cwid > 0 && cwid < errorMargin) {
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throw new RuntimeException(errMsg);
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}
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((Graphics2D)g).setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS,
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RenderingHints.VALUE_FRACTIONALMETRICS_ON);
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((Graphics2D)g).setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
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RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
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fm = g.getFontMetrics();
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System.out.println("Bold FM OFF + AA: " + fm.charWidth('\u200b'));
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cwid = fm.charWidth('\u200b');
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if (cwid > 0 && cwid < errorMargin) {
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throw new RuntimeException(errMsg);
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}
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((Graphics2D)g).setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS,
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RenderingHints.VALUE_FRACTIONALMETRICS_OFF);
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((Graphics2D)g).setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
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RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
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fm = g.getFontMetrics();
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System.out.println("Bold FM ON + AA: " + fm.charWidth('\u200b'));
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cwid = fm.charWidth('\u200b');
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if (cwid > 0 && cwid < errorMargin) {
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throw new RuntimeException(errMsg);
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}
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((Graphics2D)g).setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS,
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RenderingHints.VALUE_FRACTIONALMETRICS_ON);
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((Graphics2D)g).setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
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RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
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fm = g.getFontMetrics();
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System.out.println("Bold FM ON + nonAA: " + fm.charWidth('\u200b'));
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cwid = fm.charWidth('\u200b');
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if (cwid > 0 && cwid < errorMargin) {
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throw new RuntimeException(errMsg);
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}
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System.out.println("All printed values should be 0 to PASS");
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}
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}
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