mirror of https://github.com/CGAL/cgal
51 lines
956 B
C++
51 lines
956 B
C++
#ifndef CGAL_QT_GRAPHICS_VIEW_NAVIGATION_H
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#define CGAL_QT_GRAPHICS_VIEW_NAVIGATION_H
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#include <QObject>
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#include <QPointF>
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#include <QString>
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#include <QCursor>
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#include <QRect>
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#include <QRectF>
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class QGraphicsView;
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class QEvent;
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class QGraphicsRectItem;
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namespace CGAL {
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namespace Qt {
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class GraphicsViewNavigation: public QObject {
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Q_OBJECT
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signals:
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void mouseCoordinates(QString);
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public:
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GraphicsViewNavigation(QGraphicsView* v_);
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~GraphicsViewNavigation();
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bool eventFilter(QObject *obj, QEvent *event);
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private:
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void scaleView(qreal scaleFactor);
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void translateView(int dx, int dy);
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void drag_to(QPoint new_pos);
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QRectF mapToScene(QRect rect) const;
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void display_parameters();
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QGraphicsView* v;
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QGraphicsRectItem* rectItem;
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QPointF rect_first_point;
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bool dragging;
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QPointF dragging_start;
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QCursor cursor_backup;
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};
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} // namespace Qt
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} // namespace CGAL
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#endif // CGAL_QT_GRAPHICS_VIEW_NAVIGATION_H
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