kmix/ksmallslider.h

   1 //-*-C++-*-
   2 /*
   3  * KMix -- KDE's full featured mini mixer
   4  *
   5  *
   6  * Copyright (C) 2000 Stefan Schimanski <1Stein@gmx.de>
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Library General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2 of the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Library General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Library General Public
  19  * License along with this program; if not, write to the Free
  20  * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  21  */
  22
  23 #ifndef KSMALLSLIDER_H
  24 #define KSMALLSLIDER_H
  25
  26 #include <qabstractslider.h>
  27 #include <qpixmap.h>
  28
  29 class KSmallSlider : public QAbstractSlider
  30 {
  31       Q_OBJECT
  32
  33    public:
  34       KSmallSlider( int minValue, int maxValue, int pageStep, int value,
  35         Qt::Orientation, QWidget *parent, const char *name=0 );
  36
  37       QSize sizeHint() const;
  38       QSizePolicy sizePolicy() const;
  39       QSize minimumSizeHint() const;
  40
  41       bool gray() const;
  42
  43 public slots:
  44       void setGray( bool value );
  45       void setColors( QColor high, QColor low, QColor back );
  46       void setGrayColors( QColor high, QColor low, QColor back );
  47
  48       signals:
  49       void valueChanged( int value );
  50
  51    protected:
  52       void resizeEvent( QResizeEvent * );
  53       void paintEvent( QPaintEvent * );
  54
  55       void mousePressEvent( QMouseEvent * );
  56       void mouseMoveEvent( QMouseEvent * );
  57 //      void wheelEvent( QWheelEvent * );
  58
  59       void valueChange();
  60
  61    private:
  62
  63       void init();
  64       int positionFromValue( int ) const;
  65       int valueFromPosition( int ) const;
  66       int positionFromValue( int logical_val, int span ) const;
  67       int valueFromPosition( int pos, int span ) const;
  68       void moveSlider( int );
  69
  70       int available() const;
  71       int goodPart( const QPoint& ) const;
  72
  73       bool grayed;
  74       QColor colHigh, colLow, colBack;
  75       QColor grayHigh, grayLow, grayBack;
  76
  77 };
  78
  79 #endif