int main(int argc, char *argv[])
{
QApplication a(argc, argv);
QDir::setCurrent(QCoreApplication::applicationDirPath());
QDir dir(QDir::current());
// set the slide model.
QFile xmlf(dir.absoluteFilePath("userdata/test.xml"));
if (!xmlf.exists()) {
QMessageBox::critical(0, "error", "no xml file...");
return 0;
}
xmlf.open(QFile::ReadWrite);
QSlideModel model(xmlf.readAll());
xmlf.close();
// set the slide scene
QSlidePlayerScene *scene = new QSlidePlayerScene(0, &model);
QPixmap pixmap(dir.absoluteFilePath("res/images/default-background.png"));
scene->setBackgroundBrush(Qt::black);
scene->setBackgroundPixmap(pixmap);
//set slide view
QGraphicsView *view = new QGraphicsView(scene);
view->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
view->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
view->setFrameShape(QFrame::NoFrame);
// editing is not allowed.
view->setInteractive(false);
// scale
double newScale = QApplication::desktop()->height() / scene->sceneRect().height();
QMatrix oldMatrix = view->matrix();
view->resetMatrix();
view->translate(oldMatrix.dx(), oldMatrix.dy());
view->scale(newScale, newScale);
view->showFullScreen();
QHidDevice * test = new QHidDevice(0x55, 0x32, &a);
return a.exec();
}
void MapperGLCanvas::wheelEvent(QWheelEvent *event)
{
int deltaLevel = event->delta() / 120;
qreal zoomFactor = qPow(MM::ZOOM_FACTOR, _zoomLevel);
if (deltaLevel > 0)
{
// First check if we're already at max.
while (deltaLevel && zoomFactor < MM::ZOOM_MAX) {
_zoomLevel++;
deltaLevel--;
zoomFactor = qPow(MM::ZOOM_FACTOR, _zoomLevel);
}
zoomFactor = qMin(zoomFactor, MM::ZOOM_MAX);
}
else
{
// First check if we're already at min.
while (deltaLevel && zoomFactor > MM::ZOOM_MIN) {
_zoomLevel--;
deltaLevel++;
zoomFactor = qPow(MM::ZOOM_FACTOR, _zoomLevel);
}
zoomFactor = qMax(zoomFactor, MM::ZOOM_MIN);
}
// Re-bound zoom (for consistency).
zoomFactor = getZoomFactor();
// Apply zoom to view.
QGraphicsView* view = scene()->views().first();
view->resetMatrix();
view->scale(zoomFactor, zoomFactor);
view->update();
// Accept wheel scrolling event.
event->accept();
}