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/**************************************************************************\
* Copyright (c) Kongsberg Oil & Gas Technologies AS
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
\**************************************************************************/
/*
Demonstrates embedding of an SoQtRenderArea within a QScrollView.
*/
/***********************************************************************/
#include <Inventor/Qt/SoQt.h>
#include <Inventor/Qt/SoQtRenderArea.h>
#include <Inventor/nodes/SoCone.h>
#include <Inventor/nodes/SoDirectionalLight.h>
#include <Inventor/nodes/SoPerspectiveCamera.h>
#include <Inventor/nodes/SoSeparator.h>
#include <qapplication.h>
#include <qpainter.h>
#if QT_VERSION < 0x040000 // Qt < 4.0.0
#include <qscrollview.h>
#else
#include <qscrollarea.h>
#endif
class MyScrollView : public QScrollArea {
public:
MyScrollView(QWidget * parent) : QScrollArea(parent)
{
#if QT_VERSION < 0x040000 // Qt < 4.0.0
this->resizeContents(10000, 10000);
this->enableClipper(TRUE);
#endif
// Container widget for the SoQtRenderArea.
QWidget * container = new QWidget(this);
container->resize(1000, 1000);
// Construct a simple scenegraph.
SoSeparator * root = new SoSeparator;
SoDirectionalLight * light = new SoDirectionalLight;
light->direction.setValue(-0.5f, -0.5f, -0.8f);
root->addChild(light);
SoPerspectiveCamera * camera = new SoPerspectiveCamera;
camera->orientation = SbRotation(SbVec3f(0, 0, 1), 0);
root->addChild(camera);
SoCone * cone = new SoCone;
root->addChild(cone);
// Add the renderarea.
renderarea = new SoQtRenderArea(container);
renderarea->setSceneGraph(root);
camera->viewAll(root, renderarea->getViewportRegion());
#if QT_VERSION < 0x040000 // Qt < 4.0.0
this->addChild(container, 100, 100);
this->showChild(container);
#else
this->setWidget(container);
#endif
}
protected:
void drawContents(QPainter * p, int cx, int cy, int cw, int ch)
{
p->fillRect(cx, cy, cw, ch, QColor(40, 80, 0));
// FIXME: should redraw only when necessary. 20001127 mortene.
renderarea->scheduleRedraw();
}
private:
SoQtRenderArea * renderarea;
};
/***********************************************************************/
int
main(int argc, char ** argv)
{
// Initialize Qt and SoQt.
QApplication app(argc, argv);
SoQt::init((QWidget *)NULL);
// Set up scrollview window.
MyScrollView * vp = new MyScrollView(NULL);
#if QT_VERSION < 0x040000 // Qt < 4.0.0
vp->viewport()->setBackgroundMode(QWidget::NoBackground);
#endif
// Map window.
vp->show();
// Set termination condition.
QObject::connect(qApp, SIGNAL(lastWindowClosed()), qApp, SLOT(quit()));
// Start event loop.
SoQt::mainLoop();
return 0;
}
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