/************************************************************************
*
* Copyright 2010 Jakob Leben (jakob.leben@gmail.com)
*
* This file is part of SuperCollider Qt GUI.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program.  If not, see <http://www.gnu.org/licenses/>.
*
************************************************************************/

#pragma once

#include "QcAbstractStepValue.h"
#include "../QcHelper.h"
#include "../style/style.hpp"

#include <QWidget>

class QcSlider2D : public QWidget, QcHelper, QcAbstractStepValue, QtCollider::Style::Client
{
  Q_OBJECT
  Q_PROPERTY( double xValue READ xValue WRITE setXValue )
  Q_PROPERTY( double yValue READ yValue WRITE setYValue )
  Q_PROPERTY( double shiftScale READ dummyFloat WRITE setShiftScale );
  Q_PROPERTY( double ctrlScale READ dummyFloat WRITE setCtrlScale );
  Q_PROPERTY( double altScale READ dummyFloat WRITE setAltScale );
  Q_PROPERTY( double step READ dummyFloat WRITE setStep )
  Q_PROPERTY( QColor grooveColor READ grooveColor WRITE setGrooveColor );
  Q_PROPERTY( QColor focusColor READ focusColor WRITE setFocusColor );
  Q_PROPERTY( QColor knobColor READ knobColor WRITE setKnobColor );

  public:
    QcSlider2D();
    double xValue() const { return _x; }
    double yValue() const { return _y; }
    void setXValue( double x ) { setValue( QPointF( x, _y ), false ); }
    void setYValue( double y ) { setValue( QPointF( _x, y ), false ); }
    void setStep( double f ) { _step = f;}
    const QColor & knobColor() const
      { return _knobColor.isValid() ? _knobColor : palette().color(QPalette::ButtonText); }
    void setKnobColor(const QColor &c) { _knobColor = c; update(); }
    QSize sizeHint() const { return QSize(150,150); }
    QSize minimumSizeHint() const { return QSize(30,30); }
  public Q_SLOTS:
    void incrementX( double factor = 1.f );
    void decrementX( double factor = 1.f );
    void incrementY( double factor = 1.f );
    void decrementY( double factor = 1.f );
  Q_SIGNALS:
    void action();
    void randomize();
  private:
    QRect thumbRect();
    void setValue( const QPointF val, bool doAction = true );
    void mouseMoveEvent ( QMouseEvent * );
    void mousePressEvent ( QMouseEvent * );
    void keyPressEvent ( QKeyEvent * );
    void paintEvent ( QPaintEvent * );

    double _x;
    double _y;
    QSize _thumbSize;
    double _step;

    QColor _knobColor;
};
