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MarginWidget: Moved mouse_down_item_ in
[pulseview.git] / pv / view / marginwidget.hpp
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1/*
2 * This file is part of the PulseView project.
3 *
4 * Copyright (C) 2013 Joel Holdsworth <joel@airwebreathe.org.uk>
5 *
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.
10 *
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.
15 *
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
19 */
20
21#ifndef PULSEVIEW_PV_MARGINWIDGET_H
22#define PULSEVIEW_PV_MARGINWIDGET_H
23
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24#include <memory>
25
f4433aa9 26#include <QPoint>
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27#include <QWidget>
28
29namespace pv {
30namespace view {
31
32class View;
786b7678 33class ViewItem;
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34
35class MarginWidget : public QWidget
36{
37 Q_OBJECT
38
39public:
40 MarginWidget(pv::view::View &parent);
41
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42 /**
43 * The extended area that the margin widget would like to be sized to.
44 * @remarks This area is the area specified by sizeHint, extended by
45 * the area to overlap the viewport.
46 */
47 virtual QSize extended_size_hint() const = 0;
48
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49protected:
50 /**
51 * Shows the popup of a the specified @c ViewItem .
52 * @param item The item to show the popup for.
53 */
54 void show_popup(const std::shared_ptr<ViewItem> &item);
55
e9213170 56public Q_SLOTS:
84a0d458 57 virtual void clear_selection();
a2ae0205 58
e9213170 59Q_SIGNALS:
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60 void selection_changed();
61
c23b29d6 62protected:
8dbbc7f0 63 pv::view::View &view_;
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64 QPoint mouse_point_;
65 QPoint mouse_down_point_;
f052f9cd 66 std::shared_ptr<ViewItem> mouse_down_item_;
f4433aa9 67 bool dragging_;
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68};
69
70} // namespace view
71} // namespace pv
72
73#endif // PULSEVIEW_PV_MARGINWIDGET_H