1 /*
   2  * Copyright (c) 2010, 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 
  24 /*
  25  *
  26  * @bug 6925760
  27  * @summary Scaled graphics causes overlapped LCD glyphs on Windows
  28  */
  29 
  30 import java.awt.*;
  31 import java.awt.font.*;
  32 import java.awt.geom.*;
  33 
  34 public class LCDScale extends Component {
  35 
  36     public static void main(String args[]) {
  37         Frame f = new Frame("TL TEST");
  38         LCDScale td = new LCDScale();
  39         f.add("Center", td);
  40         f.pack(); f.setVisible(true);
  41     }
  42 
  43 
  44     public LCDScale() {
  45         super();
  46     }
  47 
  48     public Dimension getPreferredSize() {
  49         return new Dimension(500,500);
  50     }
  51 
  52     public void paint(Graphics g) {
  53         Graphics2D g2d = (Graphics2D)g;
  54         g2d.setRenderingHint(
  55                  RenderingHints.KEY_TEXT_ANTIALIASING,
  56                  RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_HRGB);
  57 
  58         Font f = new Font("Dialog", Font.PLAIN, 40);
  59         g.setFont(f);
  60         FontRenderContext frc = g2d.getFontRenderContext();
  61         GlyphVector gv = f.createGlyphVector(frc, "Help");
  62         g2d.drawGlyphVector(gv, 10f, 50f);
  63         Rectangle2D bds1 = gv.getLogicalBounds();
  64 
  65         f = new Font("Arial", Font.PLAIN, 25);
  66         g.setFont(f);
  67         double s = 2.0;
  68         AffineTransform tx = AffineTransform.getScaleInstance(s,s);
  69         g2d.transform(tx);
  70         frc = g2d.getFontRenderContext();
  71         gv = f.createGlyphVector(frc, "Help");
  72         g2d.drawGlyphVector(gv, 10f, 100f);
  73         Rectangle2D bds2 = gv.getLogicalBounds();
  74 
  75         System.out.println(bds1);
  76         System.out.println(bds2);
  77         if (bds2.getWidth()*s < bds1.getWidth()) {
  78             throw new RuntimeException("Bounds too small");
  79         }
  80     }
  81 }
  82 
  83