PulseView  0.3.0
A Qt-based sigrok GUI
marginwidget.cpp
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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 #include <QMenu>
22 #include <QMouseEvent>
23 
24 #include "view.hpp"
25 
26 #include "marginwidget.hpp"
27 
28 #include <pv/widgets/popup.hpp>
29 
30 using std::shared_ptr;
31 
32 namespace pv {
33 namespace view {
34 
36  ViewWidget(parent)
37 {
38  setAttribute(Qt::WA_NoSystemBackground, true);
39 }
40 
41 void MarginWidget::item_clicked(const shared_ptr<ViewItem> &item)
42 {
43  if (item && item->enabled())
44  show_popup(item);
45 }
46 
47 void MarginWidget::show_popup(const shared_ptr<ViewItem> &item)
48 {
49  pv::widgets::Popup *const p = item->create_popup(this);
50  if (p)
51  p->show();
52 }
53 
54 void MarginWidget::contextMenuEvent(QContextMenuEvent *event)
55 {
56  const shared_ptr<ViewItem> r = get_mouse_over_item(mouse_point_);
57  if (!r)
58  return;
59 
60  QMenu *menu = r->create_context_menu(this);
61  if (menu)
62  menu->exec(event->globalPos());
63 }
64 
65 void MarginWidget::keyPressEvent(QKeyEvent *e)
66 {
67  assert(e);
68 
69  if (e->key() == Qt::Key_Delete) {
70  const auto items = this->items();
71  for (auto &i : items)
72  if (i->selected())
73  i->delete_pressed();
74  }
75 }
76 
77 } // namespace view
78 } // namespace pv
virtual std::vector< std::shared_ptr< pv::view::ViewItem > > items()=0
virtual void contextMenuEvent(QContextMenuEvent *event)
virtual std::shared_ptr< pv::view::ViewItem > get_mouse_over_item(const QPoint &pt)=0
virtual void keyPressEvent(QKeyEvent *e)
void show_popup(const std::shared_ptr< ViewItem > &item)
MarginWidget(pv::view::View &parent)
virtual void item_clicked(const std::shared_ptr< pv::view::ViewItem > &item)