108 lines
4.5 KiB
Java
108 lines
4.5 KiB
Java
/*
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* Copyright (c) 2005, 2008, 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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import java.awt.*;
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import java.awt.font.*;
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import java.awt.geom.*;
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import java.text.*;
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/* @test
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* @summary verify TextLine advance
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* @bug 6582460 8164818
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*/
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/*
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Sample correct output:
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Left-to-right (One style): Advance = 127.30078, Visible advance = 118.30078
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Right-to-left (One style): Advance = 127.30078, Visible advance = 118.30078
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Left-to-right (Multiple styles): Advance = 127.30078, Visible advance = 118.30078
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Right-to-left (Multiple styles): Advance = 127.30078, Visible advance = 118.30078
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*/
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public class VisibleAdvance
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{
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public static void main (String [] args)
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{
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System.out.println ("java.version = " + System.getProperty ("java.version"));
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float advances[] = null;
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advances = showAndCalculateAdvance ("Left-to-right (One style): ", getString (TextAttribute.RUN_DIRECTION_LTR, false), advances);
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advances = showAndCalculateAdvance ("Right-to-left (One style): ", getString (TextAttribute.RUN_DIRECTION_RTL, false), advances);
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advances = showAndCalculateAdvance ("Left-to-right (Multiple styles): ", getString (TextAttribute.RUN_DIRECTION_LTR, true), advances);
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advances = showAndCalculateAdvance ("Right-to-left (Multiple styles): ", getString (TextAttribute.RUN_DIRECTION_RTL, true), advances);
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}
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private static final String textA = "Text with trailing ";
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private static final String textB = "spaces";
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private static final String textC = " ";
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private static final String text = textA + textB + textC;
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private static final int startOfTextB = textA.length ();
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private static final int endOfTextB = startOfTextB + textB.length ();
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private static final Font font = new Font ("Serif", Font.PLAIN, 12);
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private static AttributedString getString (Boolean direction,
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boolean multipleStyles)
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{
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AttributedString as = new AttributedString (text);
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as.addAttribute (TextAttribute.FONT, font);
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as.addAttribute (TextAttribute.RUN_DIRECTION, direction);
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if (multipleStyles)
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as.addAttribute (TextAttribute.FOREGROUND, Color.RED, startOfTextB, endOfTextB);
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return as;
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}
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private static FontRenderContext fontRenderContext =
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new FontRenderContext (new AffineTransform (), true, true);
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/*
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* @param advances on input, null or float[2]. On output: { advance, visibleAdvance }
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* @param return new float array
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*/
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private static float[] showAndCalculateAdvance (String what,
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AttributedString as,
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float advances[])
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{
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TextLayout layout = new TextLayout (as.getIterator (), fontRenderContext);
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System.out.println (what + "Advance = " + layout.getAdvance () +
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", Visible advance = " + layout.getVisibleAdvance ());
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float advance = layout.getAdvance();
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float visAdvance = layout.getVisibleAdvance();
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if(advances == null) {
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advances = new float[2];
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} else if( Float.compare(advances[0],advance)!=0 || Float.compare(advances[1],visAdvance)!=0) {
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throw new RuntimeException("MISMATCH in advance.. " + what + "Advance = " + layout.getAdvance () +
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", Visible advance = " + layout.getVisibleAdvance () + ", previous values were: ["+advances[0]+","+advances[1]+"]");
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}
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advances[0] = advance;
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advances[1] = visAdvance;
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return advances;
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}
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}
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