pv/views/trace/marginwidget.cpp

   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, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <QMenu>
  21 #include <QMouseEvent>
  22
  23 #include "view.hpp"
  24
  25 #include "marginwidget.hpp"
  26
  27 #include <pv/widgets/popup.hpp>
  28
  29 using std::shared_ptr;
  30
  31 namespace pv {
  32 namespace views {
  33 namespace trace {
  34
  35 MarginWidget::MarginWidget(View &parent) :
  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
  51         if (p) {
  52                 connect(p, SIGNAL(closed()), this, SLOT(on_popup_closed()));
  53                 p->show();
  54         }
  55 }
  56
  57 void MarginWidget::contextMenuEvent(QContextMenuEvent *event)
  58 {
  59         event->setAccepted(false);
  60
  61         const shared_ptr<ViewItem> r = get_mouse_over_item(mouse_point_);
  62         if (!r)
  63                 return;
  64
  65         QMenu *menu = r->create_header_context_menu(this);
  66         if (menu) {
  67                 event->setAccepted(true);
  68                 menu->popup(event->globalPos());
  69         }
  70 }
  71
  72 void MarginWidget::keyPressEvent(QKeyEvent *event)
  73 {
  74         assert(event);
  75
  76         if (event->key() == Qt::Key_Delete) {
  77                 const auto items = this->items();
  78                 for (auto &i : items)
  79                         if (i->selected())
  80                                 i->delete_pressed();
  81         }
  82
  83     ViewWidget::keyPressEvent(event);
  84 }
  85
  86 void MarginWidget::on_popup_closed()
  87 {
  88         bool cursor_above_widget = rect().contains(mapFromGlobal(QCursor::pos()));
  89
  90         if (!cursor_above_widget)
  91                 mouse_point_ = QPoint(INT_MIN, INT_MIN);
  92
  93         update();
  94 }
  95
  96
  97 } // namespace trace
  98 } // namespace views
  99 } // namespace pv