QtCollider/widgets/QcSlider.h

   1 /************************************************************************
   2 *
   3 * Copyright 2010-2012 Jakob Leben (jakob.leben@gmail.com)
   4 *
   5 * This file is part of SuperCollider Qt GUI.
   6 *
   7 * This program is free software: you can redistribute it and/or modify
   8 * it under the terms of the GNU General Public License as published by
   9 * the Free Software Foundation, either version 3 of the License, or
  10 * (at your option) any later version.
  11 *
  12 * This program is distributed in the hope that it will be useful,
  13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 * GNU General Public License for more details.
  16 *
  17 * You should have received a copy of the GNU General Public License
  18 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 *
  20 ************************************************************************/
  21
  22 #ifndef QC_SLIDER
  23 #define QC_SLIDER
  24
  25 #include "QcAbstractStepValue.h"
  26 #include "../QcHelper.h"
  27 #include "../style/style.hpp"
  28
  29 #include <QWidget>
  30
  31 class QcSlider : public QWidget, QcHelper, QcAbstractStepValue, QtCollider::Style::Client
  32 {
  33   Q_OBJECT
  34   Q_PROPERTY( double shiftScale READ dummyFloat WRITE setShiftScale );
  35   Q_PROPERTY( double ctrlScale READ dummyFloat WRITE setCtrlScale );
  36   Q_PROPERTY( double altScale READ dummyFloat WRITE setAltScale );
  37   Q_PROPERTY( double step READ step WRITE setStep )
  38   Q_PROPERTY( double pixelStep READ pixelStep )
  39   Q_PROPERTY( double value READ value WRITE setValue );
  40   Q_PROPERTY( int orientation READ orientation WRITE setOrientation );
  41   Q_PROPERTY( int handleLength READ handleLength WRITE setHandleLength );
  42   Q_PROPERTY( QColor grooveColor READ grooveColor WRITE setGrooveColor );
  43   Q_PROPERTY( QColor focusColor READ focusColor WRITE setFocusColor );
  44   Q_PROPERTY( QColor knobColor READ knobColor WRITE setKnobColor );
  45
  46   public Q_SLOTS:
  47     void increment( double factor );
  48     void decrement( double factor );
  49
  50   Q_SIGNALS:
  51     void action();
  52     void preAction( double );
  53
  54   public:
  55     QcSlider();
  56     double value() { return _value; }
  57     void setValue( double val );
  58
  59     double step() { return _step; }
  60     void setStep( double d ) { _step = d; }
  61     double pixelStep();
  62
  63     Qt::Orientation orientation() const { return _ort; }
  64     void setOrientation( int );
  65
  66     int handleLength() const { return _hndLen; }
  67     void setHandleLength( int i ) { _hndLen = i; updateGeometry(); update(); }
  68
  69     const QColor & knobColor() const
  70       { return _knobColor.isValid() ? _knobColor : palette().color(QPalette::ButtonText); }
  71     void setKnobColor(const QColor &c) { _knobColor = c; update(); }
  72
  73     virtual QSize sizeHint() const;
  74     virtual QSize minimumSizeHint() const;
  75
  76   protected:
  77     virtual void mousePressEvent ( QMouseEvent * );
  78     virtual void mouseMoveEvent ( QMouseEvent * );
  79     virtual void wheelEvent ( QWheelEvent * );
  80     virtual void paintEvent ( QPaintEvent * );
  81
  82   private:
  83     QRect thumbRect ();
  84     double valueAt( const QPoint &pos );
  85
  86     Qt::Orientation _ort;
  87     double _value;
  88     double _step;
  89     int _hndLen;
  90
  91     QColor _knobColor;
  92 };
  93
  94 #endif