QtGLGraphicsScene.cc

/*===========================================================================*\
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 *                              OpenFlipper                                  *
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/*===========================================================================*\
 *                                                                           *
 *   $Revision: 6743 $                                                       *
 *   $Author: moebius $                                                      *
 *   $Date: 2009-08-05 11:03:10 +0200 (Mi, 05. Aug 2009) $                   *
 *                                                                           *
\*===========================================================================*/



//=============================================================================
//
//  CLASS QtGLGraphicsScene - IMPLEMENTATION
//
//=============================================================================

//== INCLUDES =================================================================

#include "QtGLGraphicsScene.hh"
#include <QPainter>
#include <QPaintEngine>
#include <QGraphicsSceneMouseEvent>
#include <QGraphicsSceneDragDropEvent>

//== NAMESPACES ===============================================================

namespace ACG {
namespace QtWidgets {


//== IMPLEMENTATION ===========================================================

QtGLGraphicsScene::QtGLGraphicsScene(QtBaseViewer* _w) :
  QGraphicsScene (),
  w_(_w)
{
}

 
void QtGLGraphicsScene::drawBackground(QPainter *_painter, const QRectF &)
{
    if (_painter->paintEngine()->type() != QPaintEngine::OpenGL) {
        std::cerr << "QtGLGraphicsScene: drawBackground needs a QGLWidget to be set as viewport on the graphics view\n";
        return;
    }

    w_->paintGL();

}


void QtGLGraphicsScene::mousePressEvent(QGraphicsSceneMouseEvent* _e)
{
  QGraphicsScene::mousePressEvent(_e);
  if (_e->isAccepted())
    return;

  QPoint p (_e->scenePos().x(), _e->scenePos().y());
  QMouseEvent me(QEvent::MouseButtonPress ,p, _e->screenPos(), _e->button(),
                 _e->buttons(), _e->modifiers());
  w_->glMousePressEvent(&me);
  _e->accept();
}

void QtGLGraphicsScene::mouseDoubleClickEvent(QGraphicsSceneMouseEvent* _e)
{
  QGraphicsScene::mouseDoubleClickEvent(_e);
  if (_e->isAccepted())
    return;

  QPoint p (_e->scenePos().x(), _e->scenePos().y());
  QMouseEvent me(QEvent::MouseButtonDblClick ,p, _e->screenPos(), _e->button(),
                 _e->buttons(), _e->modifiers());
  w_->glMouseDoubleClickEvent(&me);
  _e->accept();
}

void QtGLGraphicsScene::mouseReleaseEvent(QGraphicsSceneMouseEvent* _e)
{
  QGraphicsScene::mouseReleaseEvent(_e);
  if (_e->isAccepted())
    return;

  QPoint p (_e->scenePos().x(), _e->scenePos().y());
  QMouseEvent me(QEvent::MouseButtonRelease ,p, _e->screenPos(), _e->button(),
                 _e->buttons(), _e->modifiers());
  w_->glMouseReleaseEvent(&me);
  _e->accept();
}

void QtGLGraphicsScene::mouseMoveEvent(QGraphicsSceneMouseEvent* _e)
{
  QGraphicsScene::mouseMoveEvent(_e);
  if (_e->isAccepted())
    return;

  QPoint p (_e->scenePos().x(), _e->scenePos().y());
  QMouseEvent me(QEvent::MouseMove ,p, _e->screenPos(), _e->button(),
                 _e->buttons(), _e->modifiers());
  w_->glMouseMoveEvent(&me);
  _e->accept();
}

void QtGLGraphicsScene::wheelEvent(QGraphicsSceneWheelEvent* _e)
{
  QGraphicsScene::wheelEvent(_e);
  if (_e->isAccepted())
    return;
  QPoint p (_e->scenePos().x(), _e->scenePos().y());
  QWheelEvent we(p, _e->screenPos(), _e->delta(), _e->buttons(),
                 _e->modifiers(), _e->orientation());
  w_->glMouseWheelEvent(&we);
  _e->accept();
}

void QtGLGraphicsScene::keyPressEvent(QKeyEvent* _e)
{
  QGraphicsScene::keyPressEvent(_e);
  if (_e->isAccepted())
    return;
  w_->glKeyPressEvent (_e);
}

void QtGLGraphicsScene::keyReleaseEvent(QKeyEvent* _e)
{
  QGraphicsScene::keyReleaseEvent(_e);
  if (_e->isAccepted())
    return;
  w_->glKeyReleaseEvent (_e);
}

void QtGLGraphicsScene::contextMenuEvent(QGraphicsSceneContextMenuEvent* _e)
{
  QGraphicsScene::contextMenuEvent(_e);
  if (_e->isAccepted())
    return;

  QPoint p (_e->scenePos().x(), _e->scenePos().y());
  QContextMenuEvent ce(static_cast<QContextMenuEvent::Reason> (_e->reason()),
                       p, _e->screenPos(), _e->modifiers());
  w_->glContextMenuEvent(&ce);
  _e->accept();
}

void QtGLGraphicsScene::dragEnterEvent(QGraphicsSceneDragDropEvent* _e)
{
  QGraphicsScene::dragEnterEvent(_e);
  if (_e->isAccepted())
    return;

  QPoint p (_e->scenePos().x(), _e->scenePos().y());
  QDragEnterEvent de(p, _e->possibleActions(), _e->mimeData(), _e->buttons(),
                     _e->modifiers ());
  w_->glDragEnterEvent(&de);
  _e->accept();
}

void QtGLGraphicsScene::dropEvent(QGraphicsSceneDragDropEvent* _e)
{
  QGraphicsScene::dropEvent(_e);
  if (_e->isAccepted())
    return;
  QPoint p (_e->scenePos().x(), _e->scenePos().y());
  QDropEvent de(p, _e->possibleActions(), _e->mimeData(), _e->buttons(),
                _e->modifiers ());
  w_->glDropEvent(&de);
  _e->accept();
}

//=============================================================================
} // namespace QtWidgets
} // namespace ACG
//=============================================================================