diff options
Diffstat (limited to 'examples/gestures/collidingmice/main.cpp')
| -rw-r--r-- | examples/gestures/collidingmice/main.cpp | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/examples/gestures/collidingmice/main.cpp b/examples/gestures/collidingmice/main.cpp index 9f50379..d6dbdb0 100644 --- a/examples/gestures/collidingmice/main.cpp +++ b/examples/gestures/collidingmice/main.cpp @@ -48,15 +48,26 @@ #include <math.h> +#define ZOOMING_ANIMATION +#ifdef ZOOMING_ANIMATION +static const int AnimationSteps = 10; +#endif + static const int MouseCount = 7; class PannableGraphicsView : public QGraphicsView { + Q_OBJECT public: PannableGraphicsView(QGraphicsScene *scene, QWidget *parent = 0) : QGraphicsView(scene, parent) { grabGesture("LinjaZax"); +#ifdef ZOOMING_ANIMATION + timeline = new QTimeLine(700, this); + timeline->setFrameRange(0, AnimationSteps); + connect(timeline, SIGNAL(frameChanged(int)), this, SLOT(animationStep(int))); +#endif } protected: bool event(QEvent *event) @@ -67,10 +78,22 @@ protected: if (g) { switch (g->zoomState()) { case LinjaZaxGesture::ZoomingIn: +#ifdef ZOOMING_ANIMATION + scaleStep = 1. + 0.5/AnimationSteps; + timeline->stop(); + timeline->start(); +#else scale(1.5, 1.5); +#endif break; case LinjaZaxGesture::ZoomingOut: +#ifdef ZOOMING_ANIMATION + scaleStep = 1. - 0.5/AnimationSteps; + timeline->stop(); + timeline->start(); +#else scale(0.6, 0.6); +#endif break; default: break; @@ -84,6 +107,16 @@ protected: } return QGraphicsView::event(event); } +private slots: +#ifdef ZOOMING_ANIMATION + void animationStep(int step) + { + scale(scaleStep, scaleStep); + } +private: + qreal scaleStep; + QTimeLine *timeline; +#endif }; //! [0] @@ -127,3 +160,5 @@ int main(int argc, char **argv) return app.exec(); } //! [6] + +#include "main.moc" |