QtCollider/widgets/QcRangeSlider.h

   1 /************************************************************************
   2 *
   3 * Copyright 2010 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_RANGE_SLIDER
  23 #define QC_RANGE_SLIDER
  24
  25 #include "QcAbstractStepValue.h"
  26 #include "../QcHelper.h"
  27 #include "../style/style.hpp"
  28
  29 #include <QWidget>
  30
  31 class QcRangeSlider :
  32   public QWidget, QcHelper, QcAbstractStepValue, QtCollider::Style::Client
  33 {
  34   Q_OBJECT
  35   Q_PROPERTY( Qt::Orientation orientation
  36               READ orientation WRITE setOrientation );
  37   Q_PROPERTY( float loValue READ loValue WRITE setLoValue )
  38   Q_PROPERTY( float hiValue READ hiValue WRITE setHiValue )
  39   Q_PROPERTY( float shiftScale READ dummyFloat WRITE setShiftScale );
  40   Q_PROPERTY( float ctrlScale READ dummyFloat WRITE setCtrlScale );
  41   Q_PROPERTY( float altScale READ dummyFloat WRITE setAltScale );
  42   Q_PROPERTY( float step READ dummyFloat WRITE setStep )
  43   Q_PROPERTY( QColor grooveColor READ grooveColor WRITE setGrooveColor );
  44   Q_PROPERTY( QColor focusColor READ focusColor WRITE setFocusColor );
  45
  46   public:
  47     enum MouseMode {
  48       None = 0,
  49       Move,
  50       MoveHi,
  51       MoveLo,
  52       SetLo,
  53       SetHi
  54     };
  55
  56     QcRangeSlider();
  57     Qt::Orientation orientation() const { return _ort; }
  58     void setOrientation( Qt::Orientation o );
  59     float loValue() const { return _lo; }
  60     void setLoValue( float );
  61     float hiValue() const { return _hi; }
  62     void setHiValue( float );
  63     void setRange( double val, double range );
  64     void setStep( float f ) { _step = f; }
  65     QSize sizeHint() const;
  66     QSize minimumSizeHint() const;
  67
  68   public Q_SLOTS:
  69     void increment( double factor );
  70     void decrement( double factor );
  71
  72   Q_SIGNALS:
  73     void action();
  74
  75   private:
  76     QRect thumbRect();
  77     QRect valueRect();
  78     double valueFromPos( const QPoint& pos );
  79     void moveBy( float );
  80     void increment();
  81     void decrement();
  82     void mouseMoveEvent ( QMouseEvent * );
  83     void mousePressEvent ( QMouseEvent * );
  84     void mouseReleaseEvent ( QMouseEvent * );
  85     void keyPressEvent ( QKeyEvent * );
  86     void paintEvent ( QPaintEvent * );
  87
  88     Qt::Orientation _ort;
  89     float _lo;
  90     float _hi;
  91     float _step;
  92     QPoint dragOrigin;
  93     double dragVal, dragRange;
  94     MouseMode mouseMode;
  95 };
  96
  97 #endif