128 lines
3.9 KiB
Java
128 lines
3.9 KiB
Java
/* QtFontMetrics.java --
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Copyright (C) 2005 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.qt;
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import java.awt.Font;
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import java.awt.FontMetrics;
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import java.awt.Graphics;
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import java.awt.geom.Rectangle2D;
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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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public class QtFontMetrics extends FontMetrics
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{
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private long nativeObject;
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private QtFontPeer peer;
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public QtFontMetrics( Font f )
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{
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super( f );
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if(f.getPeer() == null || !(f.getPeer() instanceof QtFontPeer))
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throw new IllegalArgumentException("Invalid Font object.");
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peer = (QtFontPeer) f.getPeer();
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init( peer );
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}
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public QtFontMetrics( Font f, Graphics g )
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{
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super( f );
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if(f.getPeer() == null || !(f.getPeer() instanceof QtFontPeer))
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throw new IllegalArgumentException("Invalid Font object.");
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if( !(g instanceof QtGraphics) )
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throw new IllegalArgumentException("Invalid graphics object.");
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peer = (QtFontPeer) f.getPeer();
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initGraphics(peer, (QtGraphics)g );
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}
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QtFontMetrics( QtFontPeer f, Graphics g )
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{
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super( null );
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if( !(g instanceof QtGraphics) )
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throw new IllegalArgumentException("Invalid graphics object.");
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peer = f;
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initGraphics(peer, (QtGraphics)g );
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}
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public QtFontMetrics( QtFontPeer fp )
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{
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super( (Font)null );
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peer = fp;
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init( peer );
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}
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private native void init(QtFontPeer fp);
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private native void initGraphics(QtFontPeer fp, QtGraphics g);
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private native void dispose();
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native Rectangle2D getStringBounds(String s);
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// ****************** Package private ***************************
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native boolean canDisplay( char c );
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// ****************** Public methods ****************************
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public native int getAscent();
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public native int getDescent();
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public native int getHeight();
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public native int getLeading();
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public native int getMaxAdvance();
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public native int charWidth(char c);
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public int charsWidth(char[] chars, int off, int len)
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{
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return stringWidth( new String(chars, off, len) );
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}
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public native int stringWidth(String str);
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public Rectangle2D getStringBounds(String str, Graphics context)
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{
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QtFontMetrics fm = new QtFontMetrics(peer, context);
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return fm.getStringBounds( str );
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}
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}
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