8fe7789edd
2003-12-16 Graydon Hoare <graydon@redhat.com> * configure.in: Add --enable-gtk-cairo check. * configure: Regenerate. * Makefile.am: Conditionally link against cairo. * Makefile.in: Regenerate. * acinclude.m4: Include PKG_CHECK_MODULES. * aclocal.m4: Regenerate. * gnu/java/awt/peer/gtk/GtkToolkit.java (useGraphics2D): New method. (getFontMetrics, getClasspathFontPeer): * gnu/java/awt/peer/gtk/GtkCanvasPeer.java (getGraphics): * gnu/java/awt/peer/gtk/GtkComponentPeer.java (createImage): * gnu/java/awt/peer/gtk/GtkContainerPeer.java (getGraphics): * gnu/java/awt/peer/gtk/GtkFramePeer.java (getGraphics): Switch behavior depending on GtkToolkit.useGraphics2D(). * gnu/java/awt/peer/gtk/GtkFontPeer.java: Extend ClasspathFontPeer. * java/awt/Font.java: Switch to peer model. * jni/gtk-peer/gtkcairopeer.h: Definitions of cairo stuff. * jni/gtk-peer/gdkfont.h: Include gtkcairopeer.h. * jni/gtk-peer/gnu_java_awt_peer_gtk_GdkGraphics2D.c: Include gtkcairopeer.h. * jni/gtk-peer/gnu_java_awt_peer_gtk_GdkClasspathFontPeerMetrics.c: Un-include gtkpeer.h. From-SVN: r75260
93 lines
3.3 KiB
C
93 lines
3.3 KiB
C
/* gnu_java_awt_peer_gtk_GdkClasspathFontPeerMetrics.c
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Copyright (C) 1999, 2003 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., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 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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#include <math.h>
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#include "gdkfont.h"
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#include "gnu_java_awt_peer_gtk_GdkClasspathFontPeerMetrics.h"
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#define ASCENT 0
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#define MAX_ASCENT 1
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#define DESCENT 2
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#define MAX_DESCENT 3
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#define MAX_ADVANCE 4
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#define NUM_METRICS 5
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JNIEXPORT jintArray JNICALL Java_gnu_java_awt_peer_gtk_GdkClasspathFontPeerMetrics_initState
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(JNIEnv *env, jobject self, jobject font)
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{
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jintArray array;
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jint *metrics;
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struct peerfont *pf = NULL;
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pf = NSA_GET_FONT_PTR(env, font);
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g_assert (pf != NULL);
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array = (*env)->NewIntArray (env, NUM_METRICS);
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metrics = (*env)->GetIntArrayElements (env, array, NULL);
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gdk_threads_enter ();
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#define DOUBLE_TO_26_6(d) ((FT_F26Dot6)((d) * 63.0))
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#define DOUBLE_FROM_26_6(t) (((double)((t) >> 6)) \
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+ ((double)((t) & 0x3F) / 63.0))
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double pointsize = pango_font_description_get_size (pf->desc);
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pointsize /= (double) PANGO_SCALE;
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FT_Face face = pango_ft2_font_get_face (pf->font);
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FT_Set_Char_Size( face,
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DOUBLE_TO_26_6 (pointsize),
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DOUBLE_TO_26_6 (pointsize),
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0, 0);
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metrics[ASCENT] = ceil (DOUBLE_FROM_26_6(face->size->metrics.ascender));
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metrics[MAX_ASCENT] = metrics[ASCENT];
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metrics[DESCENT] = floor (DOUBLE_FROM_26_6(face->size->metrics.descender));
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if (metrics[DESCENT] < 0)
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metrics[DESCENT] = - metrics[DESCENT];
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metrics[MAX_DESCENT] = metrics[DESCENT];
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metrics[MAX_ADVANCE] = ceil (DOUBLE_FROM_26_6(face->size->metrics.max_advance));
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gdk_threads_leave ();
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(*env)->ReleaseIntArrayElements (env, array, metrics, 0);
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return array;
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}
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