text: /* stock_icon_tool_button.cpp
   *
   * Wireshark - Network traffic analyzer
   * By Gerald Combs <gerald@wireshark.org>
   * Copyright 1998 Gerald Combs
   *
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public License
   * as published by the Free Software Foundation; either version 2
   * of the License, or (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
   */
  
  #include "stock_icon_tool_button.h"
  
  #include "stock_icon.h"
  
  #include <QApplication>
  #include <QEvent>
  #include <QMenu>
  #include <QMouseEvent>
  
  // We want nice icons that render correctly, and that are responsive
  // when the user hovers and clicks them.
  // Using setIcon renders correctly on normal and retina displays. It is
  // not completely responsive, particularly on OS X.
  // Calling setStyleSheet is responsive, but does not render correctly on
  // retina displays: https://bugreports.qt.io/browse/QTBUG-36825
  // Subclass QToolButton, which lets us catch events and set icons as needed.
  
  StockIconToolButton::StockIconToolButton(QWidget * parent, QString stock_icon_name) :
      QToolButton(parent),
      leave_timer_(0)
  {
      if (!stock_icon_name.isEmpty()) {
          setStockIcon(stock_icon_name);
      }
  }
  
  void StockIconToolButton::setIconMode(QIcon::Mode mode)
  {
      QIcon mode_icon;
      QList<QIcon::State> states = QList<QIcon::State>() << QIcon::Off << QIcon::On;
      foreach (QIcon::State state, states) {
          foreach (QSize size, base_icon_.availableSizes(mode, state)) {
              mode_icon.addPixmap(base_icon_.pixmap(size, mode, state), mode, state);
          }
      }
      setIcon(mode_icon);
  }
  
  void StockIconToolButton::setStockIcon(QString icon_name)
  {
      base_icon_ = StockIcon(icon_name);
      setIconMode();
  }
  
  bool StockIconToolButton::event(QEvent *event)
  {
      switch (event->type()) {
          case QEvent::Enter:
          if (isEnabled()) {
              setIconMode(QIcon::Active);
              if (leave_timer_ > 0) killTimer(leave_timer_);
              leave_timer_ = startTimer(leave_interval_);
          }
          break;
      case QEvent::MouseButtonPress:
          if (isEnabled()) {
              setIconMode(QIcon::Selected);
          }
          break;
      case QEvent::Leave:
          if (leave_timer_ > 0) killTimer(leave_timer_);
          leave_timer_ = 0;
          // Fall through
      case QEvent::MouseButtonRelease:
          setIconMode();
          break;
      case QEvent::Timer:
      {
          // We can lose QEvent::Leave, QEvent::HoverLeave and underMouse()
          // on OS X if a tooltip appears:
          // https://bugreports.qt.io/browse/QTBUG-46379
          // Work around the issue by periodically checking the mouse
          // position and scheduling a fake leave event when the mouse
          // moves away.
          QTimerEvent *te = (QTimerEvent *) event;
          bool under_mouse = rect().contains(mapFromGlobal(QCursor::pos()));
          if (te->timerId() == leave_timer_ && !under_mouse) {
              killTimer(leave_timer_);
              leave_timer_ = 0;
              QMouseEvent *me = new QMouseEvent(QEvent::Leave, mapFromGlobal(QCursor::pos()), Qt::NoButton, Qt::NoButton, Qt::NoModifier);
              QApplication::postEvent(this, me);
          }
          break;
      }
      default:
          break;
      }
  
      return QToolButton::event(event);
  }
  
  /*
   * Editor modelines
   *
   * Local Variables:
   * c-basic-offset: 4
   * tab-width: 8
   * indent-tabs-mode: nil
   * End:
   *
   * ex: set shiftwidth=4 tabstop=8 expandtab:
   * :indentSize=4:tabSize=8:noTabs=true:
   */
  