* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
-#ifndef PULSEVIEW_PV_VIEW_VIEWPORT_H
-#define PULSEVIEW_PV_VIEW_VIEWPORT_H
+#ifndef PULSEVIEW_PV_VIEWS_TRACEVIEW_VIEWPORT_HPP
+#define PULSEVIEW_PV_VIEWS_TRACEVIEW_VIEWPORT_HPP
+
+#include <boost/optional.hpp>
#include <QTimer>
-#include <QWidget>
#include <QTouchEvent>
+#include "pv/util.hpp"
+#include "viewwidget.hpp"
+
+using std::shared_ptr;
+using std::vector;
+
class QPainter;
class QPaintEvent;
class Session;
namespace pv {
-namespace view {
+namespace views {
+namespace TraceView {
class View;
-class Viewport : public QWidget
+class Viewport : public ViewWidget
{
Q_OBJECT
public:
explicit Viewport(View &parent);
-protected:
- void paintEvent(QPaintEvent *event);
-
private:
- bool event(QEvent *event);
- void mousePressEvent(QMouseEvent *event);
- void mouseReleaseEvent(QMouseEvent *event);
- void mouseMoveEvent(QMouseEvent *event);
- void mouseDoubleClickEvent(QMouseEvent * event);
- void wheelEvent(QWheelEvent *event);
- bool touchEvent(QTouchEvent *e);
+ /**
+ * 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.
+ */
+ void item_hover(const shared_ptr<ViewItem> &item);
+
+ /**
+ * Gets the first view item which has a hit-box that contains @c pt .
+ * @param pt the point to search with.
+ * @return the view item that has been found, or and empty
+ * @c shared_ptr if no item was found.
+ */
+ shared_ptr<ViewItem> get_mouse_over_item(const QPoint &pt);
+
+ /**
+ * Sets this item into the dragged state.
+ */
+ void drag();
-private Q_SLOTS:
- void on_signals_moved();
+ /**
+ * Drag the background by the delta offset.
+ * @param delta the drag offset in pixels.
+ */
+ void drag_by(const QPoint &delta);
+
+ /**
+ * Sets this item into the un-dragged state.
+ */
+ void drag_release();
+
+ /**
+ * Gets the items in the view widget.
+ */
+ vector< shared_ptr<ViewItem> > items();
+
+ /**
+ * Handles touch begin update and end events.
+ * @param e the event that triggered this handler.
+ */
+ bool touch_event(QTouchEvent *event);
private:
- View &view_;
+ void paintEvent(QPaintEvent *event);
- QPoint mouse_down_point_;
- double mouse_down_offset_;
- bool mouse_down_valid_;
+ void mouseDoubleClickEvent(QMouseEvent *event);
+ void wheelEvent(QWheelEvent *event);
+
+private:
+ boost::optional<pv::util::Timestamp> drag_offset_;
+ int drag_v_offset_;
double pinch_offset0_;
double pinch_offset1_;
bool pinch_zoom_active_;
};
-} // namespace view
+} // namespace TraceView
+} // namespace views
} // namespace pv
-#endif // PULSEVIEW_PV_VIEW_VIEWPORT_H
+#endif // PULSEVIEW_PV_VIEWS_TRACEVIEW_VIEWPORT_HPP