mirror of git://gcc.gnu.org/git/gcc.git
123 lines
4.0 KiB
C++
123 lines
4.0 KiB
C++
/* qtcomponent.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 <jni.h>
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#include <assert.h>
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#include <qmainwindow.h>
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#include <qwidget.h>
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#include "qtcomponent.h"
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#include "containers.h"
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#define COMPONENT_CLASS "gnu/java/awt/peer/qt/QtComponentPeer"
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/*
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* Returns the parent widget for a QtComponentPeer
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*/
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void *getParentWidget( JNIEnv *env, jobject qtcomponentpeer )
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{
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jclass componentCls = env->GetObjectClass( qtcomponentpeer );
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jfieldID ownerField = env->GetFieldID( componentCls,
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"owner", "Ljava/awt/Component;" );
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assert( ownerField );
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jobject owner = env->GetObjectField( qtcomponentpeer, ownerField );
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if (owner == NULL)
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return NULL;
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jclass ownerCls = env->GetObjectClass( owner );
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jmethodID getParentMID = env->GetMethodID( ownerCls,
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"getParent",
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"()Ljava/awt/Container;" );
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assert(getParentMID);
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jobject parent = env->CallObjectMethod( owner, getParentMID, 0);
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assert(parent);
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// Get the parents peer
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jclass parentCls = env->GetObjectClass( parent );
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{
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jclass frameCls = env->FindClass( "java/awt/Frame" );
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if(env->IsInstanceOf( parent, frameCls ) == JNI_TRUE)
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return frameChildWidget( env, parent );
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}
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{
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jclass scrollpaneCls = env->FindClass( "java/awt/ScrollPane" );
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if(env->IsInstanceOf( parent, scrollpaneCls ) == JNI_TRUE)
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return scrollPaneChildWidget( env, parent );
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}
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jmethodID getPeerMID = env->GetMethodID( parentCls,
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"getPeer",
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"()Ljava/awt/peer/ComponentPeer;" );
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assert(getPeerMID);
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return getNativeObject(env, env->CallObjectMethod( parent, getPeerMID, 0));
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}
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/*
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* Creates a java.awt.Dimension object from a QSize.
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*/
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jobject makeDimension(JNIEnv *env, QSize *size)
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{
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if( size == NULL )
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return NULL;
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if( size->isNull() || !size->isValid() )
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return NULL;
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jclass cls = env->FindClass("java/awt/Dimension");
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jmethodID mid = env->GetMethodID(cls, "<init>", "(II)V");
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jvalue values[2];
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values[0].i = (jint) size->width();
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values[1].i = (jint) size->height();
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return env->NewObjectA(cls, mid, values);
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}
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/*
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* Creates a java.awt.Point object from a QPoint.
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*/
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jobject makePoint(JNIEnv *env, QPoint &p)
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{
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jclass cls = env->FindClass("java/awt/Point");
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jmethodID mid = env->GetMethodID(cls, "<init>", "(II)V");
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jvalue values[2];
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values[0].i = (jint) p.x();
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values[1].i = (jint) p.y();
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return env->NewObjectA(cls, mid, values);
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}
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