ui: Added more movement controls to the graph

* SHIFT + mouse wheel for zooming * WASD for moving up, right, left, down * SHIFT + WS for zooming * zoom anchor is under the mouse bug id = 54
2016-03-12 00:55:31 +01:00
parent bcb43eccd0
commit 53d5fe6a06
5 changed files with 190 additions and 53 deletions
@@ -0,0 +1,40 @@
+#ifndef QT_GRAPHICS_VIEW_H
+#define QT_GRAPHICS_VIEW_H
+
+#include <QGraphicsView>
+
+class QtGraphicsView
+	: public QGraphicsView
+{
+	Q_OBJECT
+	Q_PROPERTY(qreal zoom READ zoom WRITE setZoom)
+
+public:
+	QtGraphicsView(QWidget* parent);
+
+	float getZoomFactor() const;
+	void setAppZoomFactor(float appZoomFactor);
+
+	qreal zoom() const;
+	void setZoom(qreal zoom);
+
+protected:
+	void mousePressEvent(QMouseEvent *event);
+	void mouseReleaseEvent(QMouseEvent *event);
+	void keyPressEvent(QKeyEvent* event);
+	void wheelEvent(QWheelEvent* event);
+
+signals:
+	void emptySpaceClicked();
+
+private:
+	void updateTransform();
+	void updateZoom(bool in);
+
+	QPoint m_last;
+
+	float m_zoomFactor;
+	float m_appZoomFactor;
+};
+
+#endif // QT_GRAPHICS_VIEW_H