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//=========================================================
// MusE
// Linux Music Editor
// $Id: ./muse/widgets/knob.h $
//
// Copyright (C) 1999-2011 by Werner Schweer and others
// (C) Copyright 2011 Orcan Ogetbil (ogetbilo at sf.net) completely redesigned.
//
// 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; 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, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
//=========================================================
#ifndef QWT_KNOB_H
#define QWT_KNOB_H
#include "sliderbase.h"
#include "sclif.h"
#include <QColor>
#include <QResizeEvent>
#include <QPaintEvent>
namespace MusEGui {
//---------------------------------------------------------
// Knob
//---------------------------------------------------------
class Knob : public SliderBase, public ScaleIf
{
Q_OBJECT
public:
enum Symbol { Line, Dot };
enum KnobType {
panType,
auxType,
gainType,
};
private:
bool hasScale;
int d_borderWidth;
int d_shineWidth;
int d_scaleDist;
int d_maxScaleTicks;
int d_newVal;
int d_knobWidth;
int d_dotWidth;
Symbol d_symbol;
double d_angle;
double d_oldAngle;
double d_totalAngle;
double d_nTurns;
double l_const;
double l_slope;
QRect kRect;
bool _faceColSel;
QColor d_faceColor;
QColor d_shinyColor;
QColor d_rimColor;
QColor d_curFaceColor;
QColor d_altFaceColor;
QColor d_markerColor;
void recalcAngle();
void valueChange();
void rangeChange();
void drawKnob(QPainter *p, const QRect &r);
void drawMarker(QPainter *p, double arc, const QColor &c);
virtual void paintEvent(QPaintEvent *);
virtual void resizeEvent(QResizeEvent *e);
virtual void mousePressEvent(QMouseEvent *e);
double getValue(const QPoint &p);
void getScrollMode( QPoint &p, const Qt::MouseButton &button, int &scrollMode, int &direction );
void scaleChange() { repaint(); }
void fontChange(const QFont &) { repaint(); }
public:
Knob(QWidget* parent = 0, const char *name = 0);
~Knob() {}
void setRange(double vmin, double vmax, double vstep = 0.0,
int pagesize = 1);
void setKnobWidth(int w);
void setTotalAngle (double angle);
void setBorderWidth(int bw);
void selectFaceColor(bool alt);
bool selectedFaceColor() { return _faceColSel; }
QColor faceColor() { return d_faceColor; }
void setFaceColor(const QColor c);
QColor altFaceColor() { return d_altFaceColor; }
void setAltFaceColor(const QColor c);
QColor markerColor() { return d_markerColor; }
void setMarkerColor(const QColor c);
};
} // namespace MusEGui
#endif
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