juce_MPEKeyboardComponent.h

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 /*
  ==============================================================================
 
   This file is part of the JUCE library.
   Copyright (c) 2022 - Raw Material Software Limited
 
   JUCE is an open source library subject to commercial or open-source
   licensing.
 
   By using JUCE, you agree to the terms of both the JUCE 7 End-User License
   Agreement and JUCE Privacy Policy.
 
   End User License Agreement: www.juce.com/juce-7-licence
   Privacy Policy: www.juce.com/juce-privacy-policy
 
   Or: You may also use this code under the terms of the GPL v3 (see
   www.gnu.org/licenses).
 
   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
   DISCLAIMED.
 
  ==============================================================================
*/
 
namespace juce
{
 
//==============================================================================
class JUCE_API  MPEKeyboardComponent  : public KeyboardComponentBase,
                                        private MPEInstrument::Listener,
                                        private Timer
{
public:
    //==============================================================================
    MPEKeyboardComponent (MPEInstrument& instrument, Orientation orientation);
 
    virtual ~MPEKeyboardComponent() override;
 
    //==============================================================================
    void setVelocity (float newVelocity)                                 { velocity = jlimit (0.0f, 1.0f, newVelocity); }
 
    void setPressure (float newPressure)                                 { pressure = jlimit (0.0f, 1.0f, newPressure); }
 
    void setLift (float newLift)                                         { lift = jlimit (0.0f, 1.0f, newLift); }
 
    void setUseMouseSourcePressureForStrike (bool usePressureForStrike)  { useMouseSourcePressureForStrike = usePressureForStrike; }
 
    //==============================================================================
    enum ColourIds
    {
        whiteNoteColourId         = 0x1006000,
        blackNoteColourId         = 0x1006001,
        textLabelColourId         = 0x1006002,
        noteCircleFillColourId    = 0x1006003,
        noteCircleOutlineColourId = 0x1006004
    };
 
    //==============================================================================
    void mouseDrag (const MouseEvent&) override;
    void mouseDown (const MouseEvent&) override;
    void mouseUp (const MouseEvent&) override;
    void focusLost (FocusChangeType) override;
    void colourChanged() override;
 
private:
    //==============================================================================
    struct MPENoteComponent;
 
    //==============================================================================
    void drawKeyboardBackground (Graphics& g, Rectangle<float> area) override;
    void drawWhiteKey (int midiNoteNumber, Graphics& g, Rectangle<float> area) override;
    void drawBlackKey (int midiNoteNumber, Graphics& g, Rectangle<float> area) override;
 
    void updateNoteData (MPENote&);
 
    void noteAdded (MPENote) override;
    void notePressureChanged (MPENote) override;
    void notePitchbendChanged (MPENote) override;
    void noteTimbreChanged (MPENote) override;
    void noteReleased (MPENote) override;
    void zoneLayoutChanged() override;
 
    void timerCallback() override;
 
    //==============================================================================
    MPEValue mousePositionToPitchbend (int, Point<float>);
    MPEValue mousePositionToTimbre (Point<float>);
 
    void addNewNote (MPENote);
    void removeNote (MPENote);
 
    void handleNoteOns  (std::set<MPENote>&);
    void handleNoteOffs (std::set<MPENote>&);
    void updateNoteComponentBounds (const MPENote&, MPENoteComponent&);
    void updateNoteComponents();
 
    void updateZoneLayout();
 
    //==============================================================================
    MPEInstrument& instrument;
    std::unique_ptr<MPEChannelAssigner> channelAssigner;
 
    CriticalSection activeNotesLock;
    std::vector<std::pair<MPENote, bool>> activeNotes;
    std::vector<std::unique_ptr<MPENoteComponent>> noteComponents;
    std::map<int, uint16> sourceIDMap;
 
    float velocity = 0.7f, pressure = 1.0f, lift = 0.0f;
    bool useMouseSourcePressureForStrike = false;
    int perNotePitchbendRange = 48;
 
    //==============================================================================
    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (MPEKeyboardComponent)
};
 
} // namespace juce