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/* gdkfontmetrics.c
Copyright (C) 1999 Free Software Foundation, Inc.
This file is part of the peer AWT libraries of GNU Classpath.
This library is free software; you can redistribute it and/or modify
it under the terms of the GNU Library General Public License as published
by the Free Software Foundation, either version 2 of the License, or
(at your option) any later verion.
This library 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 Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; if not, write to the Free Software Foundation
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307 USA. */
#include "gtkpeer.h"
#include "gnu_java_awt_peer_gtk_GdkGraphics.h"
#include <gdk/gdkx.h>
#define ASCENT 0
#define MAX_ASCENT 1
#define DESCENT 2
#define MAX_DESCENT 3
#define MAX_ADVANCE 4
#define NUM_METRICS 5
JNIEXPORT jintArray JNICALL Java_gnu_java_awt_peer_gtk_GdkFontMetrics_initState
(JNIEnv *env, jobject obj, jstring fname, jint size)
{
jintArray array;
jint *metrics;
const char *cfname;
char *xlfd;
GdkFont *font;
XFontStruct *xfont;
cfname = (*env)->GetStringUTFChars (env, fname, NULL);
xlfd = g_strdup_printf (cfname, (size * 10));
(*env)->ReleaseStringUTFChars (env, fname, cfname);
array = (*env)->NewIntArray (env, NUM_METRICS);
metrics = (*env)->GetIntArrayElements (env, array, NULL);
gdk_threads_enter ();
font = gdk_font_load (xlfd);
xfont = GDK_FONT_XFONT (font);
metrics[ASCENT] = font->ascent;
metrics[MAX_ASCENT] = xfont->max_bounds.ascent;
metrics[DESCENT] = font->descent;
metrics[MAX_DESCENT] = xfont->max_bounds.descent;
metrics[MAX_ADVANCE] = xfont->max_bounds.width;
gdk_threads_leave ();
g_free (xlfd);
(*env)->ReleaseIntArrayElements (env, array, metrics, 0);
NSA_SET_PTR (env, obj, font);
return array;
}
JNIEXPORT jint JNICALL Java_gnu_java_awt_peer_gtk_GdkFontMetrics_stringWidth
(JNIEnv *env, jobject obj, jstring str)
{
GdkFont *font;
const char *cstr;
jint width;
font = (GdkFont *) NSA_GET_PTR (env, obj);
cstr = (*env)->GetStringUTFChars (env, str, NULL);
gdk_threads_enter ();
width = gdk_string_width (font, cstr);
gdk_threads_leave ();
(*env)->ReleaseStringUTFChars (env, str, cstr);
return width;
}
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