329 lines
9.5 KiB
Java
329 lines
9.5 KiB
Java
/* XFontPeer2.java -- A Java based TTF font peer for X
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Copyright (C) 2006 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.java.awt.peer.x;
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import java.awt.Font;
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import java.awt.FontMetrics;
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import java.awt.font.FontRenderContext;
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import java.awt.font.GlyphVector;
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import java.awt.font.LineMetrics;
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import java.awt.geom.AffineTransform;
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import java.awt.geom.Point2D;
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import java.awt.geom.Rectangle2D;
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import java.io.File;
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import java.io.FileInputStream;
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import java.nio.ByteBuffer;
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import java.nio.channels.FileChannel;
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import java.text.CharacterIterator;
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import java.text.StringCharacterIterator;
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import java.util.Locale;
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import java.util.Map;
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import gnu.java.awt.font.FontDelegate;
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import gnu.java.awt.font.FontFactory;
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import gnu.java.awt.peer.ClasspathFontPeer;
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public class XFontPeer2
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extends ClasspathFontPeer
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{
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private class XLineMetrics
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extends LineMetrics
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{
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private Font font;
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// private CharacterIterator characterIterator;
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// private int begin;
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// private int limit;
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private FontRenderContext fontRenderContext;
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XLineMetrics(Font f, CharacterIterator ci, int b, int l,
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FontRenderContext rc)
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{
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font = f;
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// characterIterator = ci;
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// begin = b;
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// limit = l;
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fontRenderContext = rc;
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}
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public float getAscent()
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{
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return fontDelegate.getAscent(font.getSize(), fontRenderContext.getTransform(),
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fontRenderContext.isAntiAliased(),
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fontRenderContext.usesFractionalMetrics(), true);
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}
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public int getBaselineIndex()
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{
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// FIXME: Implement this.
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throw new UnsupportedOperationException("Not yet implemented");
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}
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public float[] getBaselineOffsets()
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{
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// FIXME: Implement this.
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throw new UnsupportedOperationException("Not yet implemented");
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}
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public float getDescent()
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{
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return (int) fontDelegate.getDescent(font.getSize(),
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new AffineTransform(), false, false,
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false);
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}
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public float getHeight()
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{
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// FIXME: Implement this.
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throw new UnsupportedOperationException("Not yet implemented");
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}
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public float getLeading()
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{
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// FIXME: Implement this.
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throw new UnsupportedOperationException("Not yet implemented");
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}
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public int getNumChars()
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{
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// FIXME: Implement this.
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throw new UnsupportedOperationException("Not yet implemented");
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}
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public float getStrikethroughOffset()
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{
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return 0.F;
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}
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public float getStrikethroughThickness()
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{
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return 0.F;
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}
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public float getUnderlineOffset()
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{
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return 0.F;
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}
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public float getUnderlineThickness()
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{
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return 0.F;
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}
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}
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private class XFontMetrics
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extends FontMetrics
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{
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XFontMetrics(Font f)
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{
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super(f);
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}
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public int getAscent()
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{
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return (int) fontDelegate.getAscent(getFont().getSize(),
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new AffineTransform(), false, false,
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false);
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}
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public int getDescent()
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{
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return (int) fontDelegate.getDescent(getFont().getSize(),
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new AffineTransform(), false, false,
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false);
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}
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public int getHeight()
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{
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GlyphVector gv = fontDelegate.createGlyphVector(getFont(),
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new FontRenderContext(new AffineTransform(), false, false),
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new StringCharacterIterator("m"));
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Rectangle2D b = gv.getVisualBounds();
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return (int) b.getHeight();
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}
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public int charWidth(char c)
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{
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Point2D advance = new Point2D.Double();
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fontDelegate.getAdvance(c, getFont().getSize(), new AffineTransform(),
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false, false, true, advance);
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return (int) advance.getX();
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}
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public int charsWidth(char[] chars, int offs, int len)
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{
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return stringWidth(new String(chars, offs, len));
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}
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public int stringWidth(String s)
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{
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GlyphVector gv = fontDelegate.createGlyphVector(getFont(),
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new FontRenderContext(new AffineTransform(), false, false),
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new StringCharacterIterator(s));
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Rectangle2D b = gv.getVisualBounds();
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return (int) b.getWidth();
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}
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}
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private FontDelegate fontDelegate;
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XFontPeer2(String name, int style, int size)
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{
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super(name, style, size);
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try
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{
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File fontfile = new File("/usr/share/fonts/truetype/ttf-bitstream-vera/Vera.ttf");
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FileInputStream in = new FileInputStream(fontfile);
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FileChannel ch = in.getChannel();
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ByteBuffer buffer = ch.map(FileChannel.MapMode.READ_ONLY, 0,
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fontfile.length());
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fontDelegate = FontFactory.createFonts(buffer)[0];
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}
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catch (Exception ex)
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{
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ex.printStackTrace();
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}
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}
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XFontPeer2(String name, Map atts)
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{
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super(name, atts);
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try
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{
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File fontfile = new File("/usr/share/fonts/truetype/freefont/FreeSans.ttf");
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FileInputStream in = new FileInputStream(fontfile);
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FileChannel ch = in.getChannel();
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ByteBuffer buffer = ch.map(FileChannel.MapMode.READ_ONLY, 0,
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fontfile.length());
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fontDelegate = FontFactory.createFonts(buffer)[0];
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}
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catch (Exception ex)
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{
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ex.printStackTrace();
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}
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}
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public boolean canDisplay(Font font, char c)
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{
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// FIXME: Implement this.
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throw new UnsupportedOperationException("Not yet implemented");
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}
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public int canDisplayUpTo(Font font, CharacterIterator i, int start, int limit)
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{
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// FIXME: Implement this.
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throw new UnsupportedOperationException("Not yet implemented");
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}
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public String getSubFamilyName(Font font, Locale locale)
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{
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// FIXME: Implement this.
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throw new UnsupportedOperationException("Not yet implemented");
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}
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public String getPostScriptName(Font font)
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{
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// FIXME: Implement this.
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throw new UnsupportedOperationException("Not yet implemented");
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}
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public int getNumGlyphs(Font font)
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{
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// FIXME: Implement this.
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throw new UnsupportedOperationException("Not yet implemented");
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}
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public int getMissingGlyphCode(Font font)
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{
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// FIXME: Implement this.
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throw new UnsupportedOperationException("Not yet implemented");
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}
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public byte getBaselineFor(Font font, char c)
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{
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// FIXME: Implement this.
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throw new UnsupportedOperationException("Not yet implemented");
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}
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public String getGlyphName(Font font, int glyphIndex)
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{
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// FIXME: Implement this.
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throw new UnsupportedOperationException("Not yet implemented");
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}
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public GlyphVector createGlyphVector(Font font, FontRenderContext frc, CharacterIterator ci)
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{
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return fontDelegate.createGlyphVector(font, frc, ci);
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}
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public GlyphVector createGlyphVector(Font font, FontRenderContext ctx, int[] glyphCodes)
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{
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// FIXME: Implement this.
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throw new UnsupportedOperationException("Not yet implemented");
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}
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public GlyphVector layoutGlyphVector(Font font, FontRenderContext frc, char[] chars, int start, int limit, int flags)
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{
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StringCharacterIterator i = new StringCharacterIterator(new String(chars), start, limit, 0);
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return fontDelegate.createGlyphVector(font, frc, i);
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}
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public FontMetrics getFontMetrics(Font font)
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{
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return new XFontMetrics(font);
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}
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public boolean hasUniformLineMetrics(Font font)
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{
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// FIXME: Implement this.
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throw new UnsupportedOperationException("Not yet implemented");
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}
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public LineMetrics getLineMetrics(Font font, CharacterIterator ci, int begin, int limit, FontRenderContext rc)
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{
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return new XLineMetrics(font, ci, begin, limit, rc);
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}
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public Rectangle2D getMaxCharBounds(Font font, FontRenderContext rc)
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{
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// FIXME: Implement this.
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throw new UnsupportedOperationException("Not yet implemented");
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}
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}
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