modules/gui/qt4/util/input_slider.hpp

   1 /*****************************************************************************
   2  * input_slider.hpp : A slider that controls an input
   3  ****************************************************************************
   4  * Copyright (C) 2006 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Clément Stenac <zorglub@videolan.org>
   8  *          Jean-Baptiste Kempf <jb@videolan.org>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  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  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 #ifndef _INPUTSLIDER_H_
  26 #define _INPUTSLIDER_H_
  27
  28 #include "qt4.hpp"
  29
  30 #include <QSlider>
  31
  32 #include <QMouseEvent>
  33 #include <QWheelEvent>
  34 #include <QTimer>
  35
  36 /* Input Slider derived from QSlider */
  37 class InputSlider : public QSlider
  38 {
  39     Q_OBJECT
  40 public:
  41     InputSlider( QWidget *_parent );
  42     InputSlider( Qt::Orientation q, QWidget *_parent );
  43     virtual ~InputSlider() {};
  44 protected:
  45     virtual void mouseMoveEvent(QMouseEvent *event);
  46     virtual void mousePressEvent(QMouseEvent* event);
  47     virtual void mouseReleaseEvent(QMouseEvent* event);
  48     virtual void wheelEvent(QWheelEvent *event);
  49 private:
  50     bool b_isSliding; /* Whether we are currently sliding by user action */
  51     int inputLength;  /* InputLength that can change */
  52     char psz_length[MSTRTIME_MAX_SIZE]; /* Used for the ToolTip */
  53     int lastSeeked;
  54     QTimer *timer;
  55
  56 public slots:
  57     void setPosition( float, int64_t, int );
  58 private slots:
  59     void userDrag( int );
  60     void seekTick();
  61
  62 signals:
  63     void sliderDragged( float );
  64 };
  65
  66
  67 /* Sound Slider inherited directly from QAbstractSlider */
  68 class QPaintEvent;
  69
  70 class SoundSlider : public QAbstractSlider
  71 {
  72     Q_OBJECT
  73 public:
  74     SoundSlider( QWidget *_parent, int _i_step, bool b_softamp, char * );
  75     virtual ~SoundSlider() {};
  76     void setMuted( bool ); /* Set Mute status */
  77
  78 protected:
  79     const static int paddingL = 3;
  80     const static int paddingR = 2;
  81
  82     virtual void paintEvent(QPaintEvent *);
  83     virtual void wheelEvent( QWheelEvent *event );
  84     virtual void mousePressEvent( QMouseEvent * );
  85     virtual void mouseMoveEvent( QMouseEvent * );
  86     virtual void mouseReleaseEvent( QMouseEvent * );
  87
  88 private:
  89     bool b_isSliding; /* Whether we are currently sliding by user action */
  90     bool b_mouseOutside; /* Whether the mouse is outside or inside the Widget */
  91     int i_oldvalue; /* Store the old Value before changing */
  92     float f_step; /* How much do we increase each time we wheel */
  93     bool b_isMuted;
  94
  95     QPixmap pixGradient; /* Gradient pix storage */
  96     QPixmap pixGradient2; /* Muted Gradient pix storage */
  97     QPixmap pixOutside; /* OutLine pix storage */
  98
  99     void changeValue( int x ); /* Function to modify the value from pixel x() */
 100 };
 101
 102 #endif