diff options
Diffstat (limited to 'libjava/gnu/java/awt/peer/gtk/GdkClasspathFontPeerMetrics.java')
-rw-r--r-- | libjava/gnu/java/awt/peer/gtk/GdkClasspathFontPeerMetrics.java | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/libjava/gnu/java/awt/peer/gtk/GdkClasspathFontPeerMetrics.java b/libjava/gnu/java/awt/peer/gtk/GdkClasspathFontPeerMetrics.java new file mode 100644 index 00000000000..2f019e4dbc4 --- /dev/null +++ b/libjava/gnu/java/awt/peer/gtk/GdkClasspathFontPeerMetrics.java @@ -0,0 +1,116 @@ +/* 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]; + } +} |