215 lines
5.8 KiB
C++
215 lines
5.8 KiB
C++
/* qtscrollpanepeer.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 <QScrollArea>
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#include <QScrollBar>
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#include <gnu_java_awt_peer_qt_QtScrollPanePeer.h>
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#include "qtcomponent.h"
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#include "containers.h"
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#include "mainthreadinterface.h"
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#include "componentevent.h"
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#include "keybindings.h"
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// Constants in java.awt.ScrollPane
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#define SCROLLBARS_AS_NEEDED 0
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#define SCROLLBARS_ALWAYS 1
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#define SCROLLBARS_NEVER 2
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class MyScrollArea : public QScrollArea
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{
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public:
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MyScrollArea(JNIEnv *env, jobject obj, QWidget *parent) : QScrollArea( parent )
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{
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setup(env, obj);
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}
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~MyScrollArea()
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{
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destroy();
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}
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#define I_KNOW_WHAT_IM_DOING
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#define PARENT QScrollArea
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#include "eventmethods.h"
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};
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class ScrollPanePolicy : public AWTEvent {
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private:
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QScrollArea *widget;
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Qt::ScrollBarPolicy policy;
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public:
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ScrollPanePolicy(QScrollArea *w, Qt::ScrollBarPolicy p) : AWTEvent()
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{
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widget = w;
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policy = p;
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}
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void runEvent()
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{
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widget->setHorizontalScrollBarPolicy(policy);
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widget->setVerticalScrollBarPolicy(policy);
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}
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};
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/**
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* Returns the child widget, given the owner Component.
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*/
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QWidget *scrollPaneChildWidget( JNIEnv *env, jobject component )
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{
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jclass scrollpaneCls = env->FindClass( "java/awt/ScrollPane" );
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jmethodID getPeerMID = env->GetMethodID( scrollpaneCls,
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"getPeer",
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"()Ljava/awt/peer/ComponentPeer;");
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assert(getPeerMID != 0);
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jobject scrollpanepeerobj = env->CallObjectMethod( component, getPeerMID, NULL );
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QScrollArea *view = (QScrollArea *) getNativeObject( env, scrollpanepeerobj );
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assert(view != 0);
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return view->viewport();
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}
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/*
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* Creates a QScrollArea object.
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*/
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JNIEXPORT void JNICALL Java_gnu_java_awt_peer_qt_QtScrollPanePeer_init
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(JNIEnv *env, jobject obj)
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{
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QWidget *parentWidget = (QWidget *) getParentWidget( env, obj );
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assert( parentWidget );
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// QScrollArea *pane = new MyScrollArea( env, obj, parentWidget );
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QScrollArea *pane = new QScrollArea( parentWidget );
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assert( pane );
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setNativeObject( env, obj, pane );
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}
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/*
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* Resize the child.
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*/
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JNIEXPORT void JNICALL Java_gnu_java_awt_peer_qt_QtScrollPanePeer_childResized
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(JNIEnv *env, jobject obj, jint w, jint h)
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{
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QScrollArea *view = (QScrollArea *) getNativeObject( env, obj );
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assert( view );
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QWidget *child = view->viewport();
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assert( child );
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// child->setGeometry( 0, 0, w, h );
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// child->update();
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mainThread->postEventToMain( new AWTResizeEvent(child, 0, 0, w, h) );
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}
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/*
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* Returns the horizontal scrollbar height.
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*/
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JNIEXPORT jint JNICALL Java_gnu_java_awt_peer_qt_QtScrollPanePeer_getHScrollbarHeight
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(JNIEnv *env, jobject obj)
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{
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QScrollArea *pane = (QScrollArea *) getNativeObject( env, obj );
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assert( pane );
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QScrollBar *hbar = pane->horizontalScrollBar();
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if(hbar == NULL)
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return 0;
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if(!hbar->isVisible())
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return 0;
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int height = hbar->height();
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return height;
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}
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/*
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* Returns the vertical scrollbar width.
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*/
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JNIEXPORT jint JNICALL Java_gnu_java_awt_peer_qt_QtScrollPanePeer_getVScrollbarWidth
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(JNIEnv *env, jobject obj)
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{
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QScrollArea *pane = (QScrollArea *) getNativeObject( env, obj );
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assert( pane );
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QScrollBar *vbar = pane->verticalScrollBar();
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if(vbar == NULL)
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return 0;
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if(!vbar->isVisible())
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return 0;
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int width = vbar->width();
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return width;
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}
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/*
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* Sets the current upper-left corner to x, y.
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*/
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JNIEXPORT void JNICALL Java_gnu_java_awt_peer_qt_QtScrollPanePeer_setScrollPosition
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(JNIEnv *env, jobject obj, jint x, jint y)
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{
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QScrollArea *pane = (QScrollArea *) getNativeObject( env, obj );
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assert( pane );
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// pane->scrollContentsBy( x, y );
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}
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/*
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* Sets the scrollbar policy
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*/
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JNIEXPORT void JNICALL Java_gnu_java_awt_peer_qt_QtScrollPanePeer_setPolicy
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(JNIEnv *env, jobject obj, jint policy)
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{
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QScrollArea *pane = (QScrollArea *) getNativeObject( env, obj );
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assert( pane );
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Qt::ScrollBarPolicy qtpolicy;
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switch( policy )
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{
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case SCROLLBARS_ALWAYS:
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qtpolicy = Qt::ScrollBarAlwaysOn;
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break;
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case SCROLLBARS_NEVER:
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qtpolicy = Qt::ScrollBarAlwaysOff;
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break;
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default:
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case SCROLLBARS_AS_NEEDED:
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qtpolicy = Qt::ScrollBarAsNeeded;
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break;
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}
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mainThread->postEventToMain( new ScrollPanePolicy( pane, qtpolicy ) );
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}
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