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QcWidgetFactory.h
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/
QcWidgetFactory.h
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/************************************************************************
*
* Copyright 2010-2012 Jakob Leben (jakob.leben@gmail.com)
*
* This file is part of SuperCollider Qt GUI.
*
* This program 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 3 of the License, or
* (at your option) any later version.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*
************************************************************************/
#ifndef QC_WIDGET_FACTORY_H
#define QC_WIDGET_FACTORY_H
#include "QcObjectFactory.h"
#include "QWidgetProxy.h"
#include <QMetaMethod>
#include <QLayout>
template <class QWIDGET>
class QcWidgetFactory : public QcObjectFactory<QWIDGET>
{
public:
virtual QObjectProxy *newInstance( PyrObject *scObject, QtCollider::Variant arg[10] ) {
// Omit the first two arguments - parent and bounds
QWIDGET *w;
if( arg[2].type() == QMetaType::Void ) {
w = new QWIDGET;
}
else {
QObject *obj = QWIDGET::staticMetaObject.newInstance(
arg[2].asGenericArgument(),
arg[3].asGenericArgument(),
arg[4].asGenericArgument(),
arg[5].asGenericArgument(),
arg[6].asGenericArgument(),
arg[7].asGenericArgument(),
arg[8].asGenericArgument(),
arg[9].asGenericArgument()
);
w = qobject_cast<QWIDGET*>(obj);
if( !w ) {
qcNoConstructorMsg( QcObjectFactory<QWIDGET>::metaObject(), 8, &arg[2] );
return 0;
}
}
// NOTE: performance: it is completely equal if parent is passed
// in constructor, or set later, but for some reason it is cheaper
// if it is set here, before setting other stuff like geometry, etc.
QObjectProxy *parentProxy( arg[0].value<QObjectProxy*>() );
QWidget *parent = parentProxy ? qobject_cast<QWidget*>( parentProxy->object() ) : 0;
if( parent )
{
const QMetaObject *mo = parent->metaObject();
int mi = mo->indexOfMethod( "addChild(QWidget*)" );
bool ok;
if( mi >= 0 )
{
QMetaMethod mm = mo->method( mi );
ok = mm.invoke( parent, Q_ARG(QWidget*, w) );
if(!ok)
{
qcErrorMsg("Could not set parent!");
delete w;
return 0;
}
}
else
{
if(parent->layout())
parent->layout()->addWidget(w);
else
w->setParent( parent );
}
}
// set requested geometry
QRect r( arg[1].value<QRectF>().toRect() );
if( r.size().isEmpty() ) r.setSize( w->sizeHint() );
w->setGeometry( r );
// automatically support drag and drop
w->setAcceptDrops( true );
// ensure visible:
if(parent && parent->isVisible()) w->show();
// create the proxy:
QObjectProxy *prox( proxy(w, scObject) );
return prox;
}
protected:
virtual QObjectProxy * proxy( QWIDGET *w, PyrObject *sc_obj )
{
QWidgetProxy *prox( new QWidgetProxy( w, sc_obj ) );
initialize( prox, w );
return prox;
}
virtual void initialize( QWidgetProxy *proxy, QWIDGET *obj ) {};
};
#define QC_DECLARE_QWIDGET_FACTORY( QWIDGET ) QC_DECLARE_FACTORY( QWIDGET, QcWidgetFactory<QWIDGET> )
#endif