mirror of git://gcc.gnu.org/git/gcc.git
234 lines
6.2 KiB
C++
234 lines
6.2 KiB
C++
/* qtfontmetrics.cpp --
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Copyright (C) 2005 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., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 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 <assert.h>
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#include <QChar>
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#include <QFont>
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#include <QFontMetrics>
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#include <QString>
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#include <QPainter>
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#include <QStringList>
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#include <QFontDatabase>
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#include <gnu_java_awt_peer_qt_QtFontMetrics.h>
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#include "qtfont.h"
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#include "qtstrings.h"
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#include "qtgraphics.h"
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QFontMetrics *getFontMetrics( JNIEnv *env, jobject obj )
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{
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jclass cls = env->GetObjectClass( obj );
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jfieldID field = env->GetFieldID( cls, "nativeObject", "J" );
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return (QFontMetrics *)env->GetLongField( obj, field );
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}
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static void setNativePtr( JNIEnv *env, jobject obj, void *value )
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{
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jlong longValue = (jlong) value;
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jclass cls = env->GetObjectClass( obj );
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jfieldID field = env->GetFieldID( cls, "nativeObject", "J" );
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env->SetLongField( obj, field, longValue );
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}
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static jobject makeRectangle(JNIEnv *env, QRect *rect)
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{
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if( rect == NULL )
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return NULL;
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if( rect->isNull() || !rect->isValid() )
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return NULL;
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jclass cls = env->FindClass("java/awt/Rectangle");
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jmethodID mid = env->GetMethodID(cls, "<init>", "(IIII)V");
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jvalue values[4];
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int x,y,w,h;
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rect->getRect(&x, &y, &w, &h);
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values[0].i = (jint) x;
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values[1].i = (jint) y;
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values[2].i = (jint) w;
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values[3].i = (jint) h;
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return env->NewObjectA(cls, mid, values);
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}
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/*
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* Create font metrics from a font.
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*/
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JNIEXPORT void JNICALL Java_gnu_java_awt_peer_qt_QtFontMetrics_init
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(JNIEnv *env, jobject obj, jobject fontPeer)
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{
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QFont *f = getFont(env, fontPeer);
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assert( f );
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QFontMetrics *fm = new QFontMetrics( *f );
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assert( fm );
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setNativePtr( env, obj, fm );
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}
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/*
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* Create font metrics from a font.
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*/
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JNIEXPORT void JNICALL Java_gnu_java_awt_peer_qt_QtFontMetrics_initGraphics
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(JNIEnv *env, jobject obj, jobject fontPeer, jobject graphics)
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{
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QFont *f = getFont(env, fontPeer);
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assert( f );
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QPainter *painter = getPainter( env, graphics );
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assert( painter );
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QFontMetrics *fm = new QFontMetrics( *f , painter->device());
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assert( fm );
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setNativePtr( env, obj, fm );
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}
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/*
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* Dispose
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*/
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JNIEXPORT void JNICALL Java_gnu_java_awt_peer_qt_QtFontMetrics_dispose
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(JNIEnv *env, jobject obj)
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{
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QFontMetrics *fm = getFontMetrics( env, obj );
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if ( fm )
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delete fm;
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setNativePtr( env, obj, NULL );
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}
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/*
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* Returns JNI_TRUE if a character is displayable.
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*/
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JNIEXPORT jboolean JNICALL Java_gnu_java_awt_peer_qt_QtFontMetrics_canDisplay
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(JNIEnv *env, jobject obj, jint c)
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{
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QFontMetrics *fm = getFontMetrics( env, obj );
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assert( fm );
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bool result = fm->inFont( QChar( (unsigned int) c ) );
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return (result ? JNI_TRUE : JNI_FALSE);
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}
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/*
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* Returns the ascent.
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*/
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JNIEXPORT jint JNICALL Java_gnu_java_awt_peer_qt_QtFontMetrics_getAscent
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(JNIEnv *env, jobject obj)
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{
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QFontMetrics *fm = getFontMetrics( env, obj );
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assert( fm );
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return fm->ascent();
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}
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/*
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* Returns the descent
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*/
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JNIEXPORT jint JNICALL Java_gnu_java_awt_peer_qt_QtFontMetrics_getDescent
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(JNIEnv *env, jobject obj)
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{
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QFontMetrics *fm = getFontMetrics( env, obj );
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assert( fm );
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return fm->descent();
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}
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/*
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* Returns the height.
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*/
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JNIEXPORT jint JNICALL Java_gnu_java_awt_peer_qt_QtFontMetrics_getHeight
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(JNIEnv *env, jobject obj)
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{
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QFontMetrics *fm = getFontMetrics( env, obj );
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assert( fm );
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return fm->height();
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}
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/*
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*/
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JNIEXPORT jint JNICALL Java_gnu_java_awt_peer_qt_QtFontMetrics_getLeading
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(JNIEnv *env, jobject obj)
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{
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QFontMetrics *fm = getFontMetrics( env, obj );
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assert( fm );
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return fm->leading();
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}
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/*
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* getStringBounds
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*/
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JNIEXPORT jobject JNICALL Java_gnu_java_awt_peer_qt_QtFontMetrics_getStringBounds
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(JNIEnv *env, jobject obj, jstring str)
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{
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QFontMetrics *fm = getFontMetrics( env, obj );
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assert( fm );
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QString *qStr = getQString(env, str);
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QRect r = fm->boundingRect( *qStr );
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delete qStr;
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return makeRectangle( env, &r );
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}
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/*
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* Returns the width of the widest character.
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*/
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JNIEXPORT jint JNICALL Java_gnu_java_awt_peer_qt_QtFontMetrics_getMaxAdvance
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(JNIEnv *env, jobject obj)
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{
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QFontMetrics *fm = getFontMetrics( env, obj );
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assert( fm );
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return fm->maxWidth();
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}
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/*
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* Returns the width of a given character.
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*/
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JNIEXPORT jint JNICALL Java_gnu_java_awt_peer_qt_QtFontMetrics_charWidth
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(JNIEnv *env, jobject obj, jchar c)
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{
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QFontMetrics *fm = getFontMetrics( env, obj );
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assert( fm );
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return fm->width( QChar( (unsigned short)c ) );
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}
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/*
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* Returns the width of a string.
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*/
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JNIEXPORT jint JNICALL Java_gnu_java_awt_peer_qt_QtFontMetrics_stringWidth
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(JNIEnv *env, jobject obj, jstring str)
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{
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QFontMetrics *fm = getFontMetrics( env, obj );
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assert( fm );
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QString *qStr = getQString(env, str);
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int width = fm->width( *qStr );
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delete qStr;
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return width;
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}
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