| /* qtcomponent.cpp -- |
| Copyright (C) 2005 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., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 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. */ |
| |
| #include <jni.h> |
| #include <assert.h> |
| #include <qmainwindow.h> |
| #include <qwidget.h> |
| #include "qtcomponent.h" |
| #include "containers.h" |
| |
| #define COMPONENT_CLASS "gnu/java/awt/peer/qt/QtComponentPeer" |
| |
| /* |
| * Returns the parent widget for a QtComponentPeer |
| */ |
| void *getParentWidget( JNIEnv *env, jobject qtcomponentpeer ) |
| { |
| jclass componentCls = env->GetObjectClass( qtcomponentpeer ); |
| jfieldID ownerField = env->GetFieldID( componentCls, |
| "owner", "Ljava/awt/Component;" ); |
| assert( ownerField ); |
| jobject owner = env->GetObjectField( qtcomponentpeer, ownerField ); |
| if (owner == NULL) |
| return NULL; |
| |
| jclass ownerCls = env->GetObjectClass( owner ); |
| jmethodID getParentMID = env->GetMethodID( ownerCls, |
| "getParent", |
| "()Ljava/awt/Container;" ); |
| assert(getParentMID); |
| |
| jobject parent = env->CallObjectMethod( owner, getParentMID, 0); |
| assert(parent); |
| |
| // Get the parents peer |
| jclass parentCls = env->GetObjectClass( parent ); |
| { |
| jclass frameCls = env->FindClass( "java/awt/Frame" ); |
| if(env->IsInstanceOf( parent, frameCls ) == JNI_TRUE) |
| return frameChildWidget( env, parent ); |
| } |
| { |
| jclass scrollpaneCls = env->FindClass( "java/awt/ScrollPane" ); |
| if(env->IsInstanceOf( parent, scrollpaneCls ) == JNI_TRUE) |
| return scrollPaneChildWidget( env, parent ); |
| } |
| |
| jmethodID getPeerMID = env->GetMethodID( parentCls, |
| "getPeer", |
| "()Ljava/awt/peer/ComponentPeer;" ); |
| assert(getPeerMID); |
| return getNativeObject(env, env->CallObjectMethod( parent, getPeerMID, 0)); |
| } |
| |
| /* |
| * Creates a java.awt.Dimension object from a QSize. |
| */ |
| jobject makeDimension(JNIEnv *env, QSize *size) |
| { |
| if( size == NULL ) |
| return NULL; |
| if( size->isNull() || !size->isValid() ) |
| return NULL; |
| jclass cls = env->FindClass("java/awt/Dimension"); |
| jmethodID mid = env->GetMethodID(cls, "<init>", "(II)V"); |
| jvalue values[2]; |
| |
| values[0].i = (jint) size->width(); |
| values[1].i = (jint) size->height(); |
| |
| return env->NewObjectA(cls, mid, values); |
| } |
| |
| /* |
| * Creates a java.awt.Point object from a QPoint. |
| */ |
| jobject makePoint(JNIEnv *env, QPoint &p) |
| { |
| jclass cls = env->FindClass("java/awt/Point"); |
| jmethodID mid = env->GetMethodID(cls, "<init>", "(II)V"); |
| jvalue values[2]; |
| |
| values[0].i = (jint) p.x(); |
| values[1].i = (jint) p.y(); |
| |
| return env->NewObjectA(cls, mid, values); |
| } |
| |