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