main.cpp Example File
graphicsview/dragdroprobot/main.cpp
#include <QtWidgets>
#include "coloritem.h"
#include "robot.h"
#include <math.h>
class GraphicsView : public QGraphicsView
{
public:
GraphicsView(QGraphicsScene *scene) : QGraphicsView(scene)
{
}
protected:
void resizeEvent(QResizeEvent *) override
{
}
};
int main(int argc, char **argv)
{
QApplication app(argc, argv);
QGraphicsScene scene(-200, -200, 400, 400);
for (int i = 0; i < 10; ++i) {
ColorItem *item = new ColorItem;
item->setPos(::sin((i * 6.28) / 10.0) * 150,
::cos((i * 6.28) / 10.0) * 150);
scene.addItem(item);
}
Robot *robot = new Robot;
robot->setTransform(QTransform::fromScale(1.2, 1.2), true);
robot->setPos(0, -20);
scene.addItem(robot);
GraphicsView view(&scene);
view.setRenderHint(QPainter::Antialiasing);
view.setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate);
view.setBackgroundBrush(QColor(230, 200, 167));
view.setWindowTitle("Drag and Drop Robot");
view.show();
return app.exec();
}