* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#ifndef PULSEVIEW_PV_VIEWWIDGET_H
-#define PULSEVIEW_PV_VIEWWIDGET_H
+#ifndef PULSEVIEW_PV_VIEWWIDGET_HPP
+#define PULSEVIEW_PV_VIEWWIDGET_HPP
#include <memory>
#include <QWidget>
+class QTouchEvent;
+
namespace pv {
namespace view {
protected:
ViewWidget(View &parent);
+ /**
+ * Indicates when a view item is being hovered over.
+ * @param item The item that is being hovered over, or @c nullptr
+ * if no view item is being hovered over.
+ * @remarks the default implementation does nothing.
+ */
+ virtual void item_hover(
+ const std::shared_ptr<pv::view::ViewItem> &item);
+
/**
* Indicates the event an a view item has been clicked.
* @param item the view item that has been clicked.
*/
bool accept_drag() const;
+ /**
+ * Returns true if the mouse button is down.
+ */
+ bool mouse_down() const;
+
/**
* Drag the dragging items by the delta offset.
* @param delta the drag offset in pixels.
*/
void drag_items(const QPoint &delta);
+ /**
+ * Sets this item into the dragged state.
+ */
+ virtual void drag();
+
+ /**
+ * Drag the background by the delta offset.
+ * @param delta the drag offset in pixels.
+ * @remarks The default implementation does nothing.
+ */
+ virtual void drag_by(const QPoint &delta);
+
+ /**
+ * Sets this item into the un-dragged state.
+ */
+ virtual void drag_release();
+
/**
* Gets the items in the view widget.
*/
*/
void mouse_left_release_event(QMouseEvent *event);
+ /**
+ * Handles touch begin update and end events.
+ * @param e the event that triggered this handler.
+ */
+ virtual bool touch_event(QTouchEvent *e);
+
protected:
+ bool event(QEvent *event);
+
void mousePressEvent(QMouseEvent * event);
void mouseReleaseEvent(QMouseEvent *event);
void mouseMoveEvent(QMouseEvent *event);
QPoint mouse_point_;
QPoint mouse_down_point_;
std::shared_ptr<ViewItem> mouse_down_item_;
- bool dragging_;
+ bool item_dragging_;
};
} // namespace view
} // namespace pv
-#endif // PULSEVIEW_PV_VIEWWIDGET_H
+#endif // PULSEVIEW_PV_VIEWWIDGET_HPP