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#pragma once
#include <QTimer>
#include <QScopedPointer>
#include "controllers/midi/midimessage.h"
class ControlDoublePrivate;
// A linear 0 .. 1 control without Midi representation
class ControlNumericBehavior {
public:
virtual ~ControlNumericBehavior() { };
// this may change the dValue in place before it is adopted
// Returns false to reject the new value entirely
virtual bool setFilter(double* dValue);
// returns the normalized parameter range 0..1
virtual double valueToParameter(double dValue);
// returns the normalized parameter range 0..1
virtual double midiToParameter(double midiValue);
// returns the scaled user visible value
virtual double parameterToValue(double dParam);
// returns the midi range parameter 0..127
virtual double valueToMidiParameter(double dValue);
virtual void setValueFromMidi(
MidiOpCode o, double dParam, ControlDoublePrivate* pControl);
};
// ControlEncoderBehavior passes the midi value directly to the internal parameter value. It's
// useful for selector knobs that pass +1 in one direction and -1 in the other.
class ControlEncoderBehavior : public ControlNumericBehavior {
public:
ControlEncoderBehavior() {}
double midiToParameter(double midiValue) override;
double valueToMidiParameter(double dValue) override;
};
class ControlPotmeterBehavior : public ControlNumericBehavior {
public:
ControlPotmeterBehavior(double dMinValue, double dMaxValue,
bool allowOutOfBounds);
bool setFilter(double* dValue) override;
double valueToParameter(double dValue) override;
double midiToParameter(double midiValue) override;
double parameterToValue(double dParam) override;
double valueToMidiParameter(double dValue) override;
protected:
double m_dMinValue;
double m_dMaxValue;
double m_dValueRange;
bool m_bAllowOutOfBounds;
};
class ControlLogPotmeterBehavior : public ControlPotmeterBehavior {
public:
ControlLogPotmeterBehavior(double dMinValue, double dMaxValue, double minDB);
double valueToParameter(double dValue) override;
double parameterToValue(double dParam) override;
protected:
double m_minDB;
double m_minOffset;
};
class ControlLogInvPotmeterBehavior : public ControlLogPotmeterBehavior {
public:
ControlLogInvPotmeterBehavior(double dMinValue, double dMaxValue, double minDB);
double valueToParameter(double dValue) override;
double parameterToValue(double dParam) override;
};
class ControlLinPotmeterBehavior : public ControlPotmeterBehavior {
public:
ControlLinPotmeterBehavior(
double dMinValue, double dMaxValue, bool allowOutOfBounds);
};
class ControlLinInvPotmeterBehavior : public ControlPotmeterBehavior {
public:
ControlLinInvPotmeterBehavior(
double dMinValue, double dMaxValue, bool allowOutOfBounds);
double valueToParameter(double dValue) override;
double parameterToValue(double dParam) override;
};
class ControlAudioTaperPotBehavior : public ControlPotmeterBehavior {
public:
ControlAudioTaperPotBehavior(double minDB, double maxDB,
double neutralParameter);
double valueToParameter(double dValue) override;
double parameterToValue(double dParam) override;
double midiToParameter(double midiValue) override;
double valueToMidiParameter(double dValue) override;
void setValueFromMidi(
MidiOpCode o, double dParam, ControlDoublePrivate* pControl)
override;
protected:
// a knob position between 0 and 1 where the gain is 1 (0dB)
double m_neutralParameter;
// the Start value of the pure db scale it cranked to -Infinity by the
// linear part of the AudioTaperPot
double m_minDB;
// maxDB is the upper gain Value
double m_maxDB;
// offset at knob position 0 (Parameter = 0) to reach -Infinity
double m_offset;
// ensures that the neutral position on a integer midi value
// This value is subtracted from the Midi value at neutral position
// and is always < 1
double m_midiCorrection;
};
class ControlTTRotaryBehavior : public ControlNumericBehavior {
public:
double valueToParameter(double dValue) override;
double parameterToValue(double dParam) override;
};
class ControlPushButtonBehavior : public ControlNumericBehavior {
public:
static const int kPowerWindowTimeMillis;
static const int kLongPressLatchingTimeMillis;
// TODO(XXX) Duplicated from ControlPushButton. It's complicated and
// annoying to share them so I just copied them.
enum ButtonMode {
PUSH = 0,
TOGGLE,
POWERWINDOW,
LONGPRESSLATCHING,
TRIGGER
};
ControlPushButtonBehavior(ButtonMode buttonMode, int iNumStates);
void setValueFromMidi(
MidiOpCode o, double dParam, ControlDoublePrivate* pControl)
override;
private:
// We create many hundreds of push buttons at Mixxx startup and most of them
// never use their timer. Delay creation of the timer until it's needed.
QTimer* getTimer() {
if (m_pushTimer.isNull()) {
m_pushTimer.reset(new QTimer());
}
return m_pushTimer.data();
}
ButtonMode m_buttonMode;
int m_iNumStates;
QScopedPointer<QTimer> m_pushTimer;
};
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