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