2 * This file is part of the PulseView project.
4 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 #ifndef PULSEVIEW_PV_VIEW_VIEWPORT_H
22 #define PULSEVIEW_PV_VIEW_VIEWPORT_H
25 #include <QTouchEvent>
27 #include "viewwidget.hpp"
38 class Viewport : public ViewWidget
43 explicit Viewport(View &parent);
47 * Gets the first view item which has a hit-box that contains @c pt .
48 * @param pt the point to search with.
49 * @return the view item that has been found, or and empty
50 * @c shared_ptr if no item was found.
52 std::shared_ptr<pv::view::ViewItem> get_mouse_over_item(
56 * Gets the items in the view widget.
58 std::vector< std::shared_ptr<pv::view::ViewItem> > items();
60 void paintEvent(QPaintEvent *event);
62 bool event(QEvent *event);
63 void mousePressEvent(QMouseEvent *event);
64 void mouseReleaseEvent(QMouseEvent *event);
65 void mouseMoveEvent(QMouseEvent *event);
66 void mouseDoubleClickEvent(QMouseEvent * event);
67 void wheelEvent(QWheelEvent *event);
68 bool touchEvent(QTouchEvent *e);
71 QPoint mouse_down_point_;
72 double mouse_down_offset_;
73 bool mouse_down_valid_;
75 double pinch_offset0_;
76 double pinch_offset1_;
77 bool pinch_zoom_active_;
83 #endif // PULSEVIEW_PV_VIEW_VIEWPORT_H