companion/src/simulation/widgets/sliderwidget.h

   1 /*
   2  * Copyright (C) OpenTX
   3  *
   4  * Based on code named
   5  *   th9x - http://code.google.com/p/th9x
   6  *   er9x - http://code.google.com/p/er9x
   7  *   gruvin9x - http://code.google.com/p/gruvin9x
   8  *
   9  * License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License version 2 as
  13  * published by the Free Software Foundation.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  */
  20
  21 #ifndef _SLIDERWIDGET_H_
  22 #define _SLIDERWIDGET_H_
  23
  24 #include <QtGui>
  25 #include <QSlider>
  26 #include <QToolTip>
  27
  28 class SliderWidget : public QSlider
  29 {
  30   Q_OBJECT
  31
  32   public:
  33
  34     explicit SliderWidget(QWidget * parent = 0):
  35       QSlider(parent)
  36     {
  37       m_toolTip = tr("<p>Value (input): <b>%1</b></p>") % tr("Right-double-click to reset to center.");
  38     }
  39
  40   protected:
  41
  42     bool event(QEvent *event)
  43     {
  44       if (event->type() == QEvent::ToolTip) {
  45         QHelpEvent * helpEvent = static_cast<QHelpEvent *>(event);
  46         if (helpEvent) {
  47           QToolTip::showText(helpEvent->globalPos(), m_toolTip.arg(this->value()));
  48           return true;
  49         }
  50       }
  51       return QWidget::event(event);
  52     }
  53
  54     void mousePressEvent(QMouseEvent * event)
  55     {
  56       if (event->button() == Qt::RightButton && event->type() == QEvent::MouseButtonDblClick) {
  57         setValue(0);
  58         emit sliderMoved(0);
  59         event->accept();
  60       }
  61       QSlider::mousePressEvent(event);
  62     }
  63
  64     QString m_toolTip;
  65 };
  66
  67 #endif // _SLIDERWIDGET_H_