1 /*
   2  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 import java.awt.Font;
  24 import java.awt.font.FontRenderContext;
  25 import java.awt.font.GlyphVector;
  26 import java.awt.geom.AffineTransform;
  27 import java.awt.geom.Point2D;
  28 
  29 /**
  30  * @test
  31  * @bug 7160052
  32  * @run main TestStandardGlyphVectorBug
  33  * @summary GlyphVector.setGlyphPosition should not throw an exception on valid input
  34  */
  35 public class TestStandardGlyphVectorBug
  36 {
  37     public static void main(String[] args)
  38     {
  39         Font defaultFont = new Font(null);
  40         FontRenderContext defaultFrc = new FontRenderContext(new AffineTransform(), 
  41                                                              true, true);
  42         GlyphVector gv = defaultFont.createGlyphVector(defaultFrc, "test");
  43 
  44         //this causes the bounds to be cached
  45         //which is necessary to trigger the bug
  46         gv.getGlyphLogicalBounds(0);
  47 
  48         //this correctly gets the position of the overall advance
  49         Point2D glyphPosition = gv.getGlyphPosition(gv.getNumGlyphs());
  50 
  51         // this sets the position of the overall advance,
  52         // but also incorrectly tries to clear the bounds cache
  53         // of a specific glyph indexed by the glyphIndex parameter
  54         // even if the glyphIndex represents the overall advance
  55         // (i.e. if glyphIndex == getNumGlyphs())    
  56         gv.setGlyphPosition(gv.getNumGlyphs(), glyphPosition);
  57     }
  58 }