pv/widgets/popuptoolbutton.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 <cassert>
  21
  22 #include "popuptoolbutton.hpp"
  23
  24 namespace pv {
  25 namespace widgets {
  26
  27 PopupToolButton::PopupToolButton(QWidget *parent) :
  28         QToolButton(parent),
  29         popup_(nullptr)
  30 {
  31         connect(this, SIGNAL(clicked(bool)), this, SLOT(on_clicked(bool)));
  32 }
  33
  34 Popup* PopupToolButton::popup() const
  35 {
  36         return popup_;
  37 }
  38
  39 void PopupToolButton::set_popup(Popup *popup)
  40 {
  41         assert(popup);
  42         popup_ = popup;
  43 }
  44
  45 void PopupToolButton::on_clicked(bool)
  46 {
  47         if (!popup_)
  48                 return;
  49
  50         const QRect r = rect();
  51         popup_->set_position(mapToGlobal(QPoint((r.left() + r.right()) / 2,
  52                 ((r.top() + r.bottom() * 3) / 4))), Popup::Bottom);
  53         popup_->show();
  54 }
  55
  56 }  // namespace widgets
  57 }  // namespace pv