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+/* GdkClasspathFontPeerMetrics.java
+ Copyright (C) 1999, 2002 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., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 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.gtk;
+
+import java.awt.*;
+import java.awt.font.*;
+import java.awt.geom.*;
+
+public class GdkClasspathFontPeerMetrics extends FontMetrics
+{
+ private final int native_state = GtkGenericPeer.getUniqueInteger();
+
+ private static final int ASCENT = 0, MAX_ASCENT = 1,
+ DESCENT = 2, MAX_DESCENT = 3,
+ MAX_ADVANCE = 4;
+
+ private int[] metrics;
+ private native int[] initState (Object font);
+
+ public GdkClasspathFontPeerMetrics (Font font)
+ {
+ super (font);
+ metrics = initState (font.getPeer());
+ }
+
+ public int stringWidth (String str)
+ {
+ GlyphVector gv = font.createGlyphVector
+ (new FontRenderContext
+ (new AffineTransform (), false, false), str);
+ Rectangle2D r = gv.getVisualBounds ();
+ return (int) r.getWidth ();
+ }
+
+ public int charWidth (char ch)
+ {
+ return stringWidth (new String (new char[] { ch }));
+ }
+
+ public int charsWidth (char data[], int off, int len)
+ {
+ return stringWidth (new String (data, off, len));
+ }
+
+ /*
+ Sun's Motif implementation always returns 0 or 1 here (???), but
+ going by the X11 man pages, it seems as though we should return
+ font.ascent + font.descent.
+ */
+ public int getLeading ()
+ {
+ return 1;
+// return metrics[ASCENT] + metrics[DESCENT];
+ }
+
+ public int getAscent ()
+ {
+ return metrics[ASCENT];
+ }
+
+ public int getMaxAscent ()
+ {
+ return metrics[MAX_ASCENT];
+ }
+
+ public int getDescent ()
+ {
+ return metrics[DESCENT];
+ }
+
+ public int getMaxDescent ()
+ {
+ return metrics[MAX_DESCENT];
+ }
+
+ public int getMaxAdvance ()
+ {
+ return metrics[MAX_ADVANCE];
+ }
+}
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