985 lines
30 KiB
C++
985 lines
30 KiB
C++
//
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// Created by Alex Birch on 27/09/2017.
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//
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#include "SurjectiveMidiKeyboardComponent.h"
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/*
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* Forked from JUCE/modules/juce_audio_utils/gui/juce_MidiKeyboardComponent.cpp,
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* which had the following license:
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*/
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/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2017 - ROLI Ltd.
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JUCE is an open source library subject to commercial or open-source
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licensing.
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By using JUCE, you agree to the terms of both the JUCE 5 End-User License
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Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
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27th April 2017).
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End User License Agreement: www.juce.com/juce-5-licence
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Privacy Policy: www.juce.com/juce-5-privacy-policy
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Or: You may also use this code under the terms of the GPL v3 (see
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www.gnu.org/licenses).
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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class SurjectiveMidiKeyboardUpDownButton : public Button
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{
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public:
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SurjectiveMidiKeyboardUpDownButton (SurjectiveMidiKeyboardComponent& comp, const int d)
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: Button (String()), owner (comp), delta (d)
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{
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}
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void clicked() override
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{
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int note = owner.getLowestVisibleKey();
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if (delta < 0)
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note = (note - 1) / 12;
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else
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note = note / 12 + 1;
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owner.setLowestVisibleKey (note * 12);
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}
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void paintButton (Graphics& g, bool isMouseOverButton, bool isButtonDown) override
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{
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owner.drawUpDownButton (g, getWidth(), getHeight(),
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isMouseOverButton, isButtonDown,
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delta > 0);
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}
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private:
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SurjectiveMidiKeyboardComponent& owner;
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const int delta;
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JUCE_DECLARE_NON_COPYABLE (SurjectiveMidiKeyboardUpDownButton)
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};
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//==============================================================================
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SurjectiveMidiKeyboardComponent::SurjectiveMidiKeyboardComponent (MidiKeyboardState& s, Orientation o)
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: state (s),
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blackNoteLengthRatio (0.7f),
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xOffset (0),
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keyWidth (16.0f),
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orientation (o),
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midiChannel (1),
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midiInChannelMask (0xffff),
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velocity (1.0f),
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shouldCheckState (false),
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rangeStart (0),
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rangeEnd (127),
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firstKey (12 * 4.0f),
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canScroll (true),
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useMousePositionForVelocity (true),
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shouldCheckMousePos (false),
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keyMappingOctave (5),
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octaveNumForMiddleC (3)
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{
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addChildComponent (scrollDown = new SurjectiveMidiKeyboardUpDownButton (*this, -1));
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addChildComponent (scrollUp = new SurjectiveMidiKeyboardUpDownButton (*this, 1));
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bindKeysToMidiKeyboard();
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mouseOverNotes.insertMultiple (0, -1, 32);
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mouseDownNotes.insertMultiple (0, -1, 32);
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colourChanged();
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setWantsKeyboardFocus (true);
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state.addListener (this);
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startTimerHz (20);
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}
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SurjectiveMidiKeyboardComponent::~SurjectiveMidiKeyboardComponent()
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{
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state.removeListener (this);
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}
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void SurjectiveMidiKeyboardComponent::bindKeysToMidiKeyboard() {
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// FL studio key chart:
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// http://s3.amazonaws.com/fl_resource/flkeychart.png
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int ix, degree;
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const int whiteJumps[] = {2,2,1,2,2,2,1};
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const int blackJumps[] = {2,3,2};
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const int whiteJumpsC = sizeof(whiteJumps)/sizeof(whiteJumps[0]);
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const int blackJumpsC = sizeof(blackJumps)/sizeof(blackJumps[0]);
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ix = degree = 0;
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for (const char keyCode : "ZXCVBNM,./") {
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setKeyPressForNote(KeyPress(keyCode), degree);
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degree += whiteJumps[ix++ % whiteJumpsC];
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}
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ix = 0;
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degree = 1;
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for (const char keyCode : "SDGHJL;") {
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setKeyPressForNote(KeyPress(keyCode), degree);
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degree += blackJumps[ix++ % blackJumpsC];
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}
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ix = 0;
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degree = 12;
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for (const char keyCode : "QWERTYUIOP") {
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setKeyPressForNote(KeyPress(keyCode), degree);
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degree += whiteJumps[ix++ % whiteJumpsC];
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}
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ix = 0;
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degree = 13;
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for (const char keyCode : "2356790") {
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setKeyPressForNote(KeyPress(keyCode), degree);
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degree += blackJumps[ix++ % blackJumpsC];
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}
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}
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//==============================================================================
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void SurjectiveMidiKeyboardComponent::setKeyWidth (const float widthInPixels)
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{
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jassert (widthInPixels > 0);
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if (keyWidth != widthInPixels) // Prevent infinite recursion if the width is being computed in a 'resized()' call-back
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{
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keyWidth = widthInPixels;
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resized();
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}
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}
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void SurjectiveMidiKeyboardComponent::setOrientation (const Orientation newOrientation)
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{
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if (orientation != newOrientation)
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{
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orientation = newOrientation;
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resized();
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}
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}
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void SurjectiveMidiKeyboardComponent::setAvailableRange (const int lowestNote,
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const int highestNote)
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{
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jassert (lowestNote >= 0 && lowestNote <= 127);
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jassert (highestNote >= 0 && highestNote <= 127);
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jassert (lowestNote <= highestNote);
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if (rangeStart != lowestNote || rangeEnd != highestNote)
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{
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rangeStart = jlimit (0, 127, lowestNote);
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rangeEnd = jlimit (0, 127, highestNote);
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firstKey = jlimit ((float) rangeStart, (float) rangeEnd, firstKey);
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resized();
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}
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}
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void SurjectiveMidiKeyboardComponent::setLowestVisibleKey (int noteNumber)
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{
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setLowestVisibleKeyFloat ((float) noteNumber);
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}
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void SurjectiveMidiKeyboardComponent::setLowestVisibleKeyFloat (float noteNumber)
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{
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noteNumber = jlimit ((float) rangeStart, (float) rangeEnd, noteNumber);
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if (noteNumber != firstKey)
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{
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const bool hasMoved = (((int) firstKey) != (int) noteNumber);
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firstKey = noteNumber;
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if (hasMoved)
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sendChangeMessage();
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resized();
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}
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}
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void SurjectiveMidiKeyboardComponent::setScrollButtonsVisible (const bool newCanScroll)
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{
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if (canScroll != newCanScroll)
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{
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canScroll = newCanScroll;
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resized();
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}
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}
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void SurjectiveMidiKeyboardComponent::colourChanged()
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{
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setOpaque (findColour (whiteNoteColourId).isOpaque());
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repaint();
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}
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//==============================================================================
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void SurjectiveMidiKeyboardComponent::setMidiChannel (const int midiChannelNumber)
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{
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jassert (midiChannelNumber > 0 && midiChannelNumber <= 16);
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if (midiChannel != midiChannelNumber)
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{
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resetAnyKeysInUse();
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midiChannel = jlimit (1, 16, midiChannelNumber);
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}
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}
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void SurjectiveMidiKeyboardComponent::setMidiChannelsToDisplay (const int midiChannelMask)
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{
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midiInChannelMask = midiChannelMask;
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shouldCheckState = true;
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}
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void SurjectiveMidiKeyboardComponent::setVelocity (const float v, const bool useMousePosition)
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{
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velocity = jlimit (0.0f, 1.0f, v);
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useMousePositionForVelocity = useMousePosition;
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}
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//==============================================================================
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void SurjectiveMidiKeyboardComponent::getKeyPosition (int midiNoteNumber, const float keyWidth_, int& x, int& w) const
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{
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jassert (midiNoteNumber >= 0 && midiNoteNumber < 128);
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static const float blackNoteWidth = 0.7f;
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static const float notePos[] = { 0.0f, 1 - blackNoteWidth * 0.6f,
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1.0f, 2 - blackNoteWidth * 0.4f,
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2.0f,
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3.0f, 4 - blackNoteWidth * 0.7f,
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4.0f, 5 - blackNoteWidth * 0.5f,
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5.0f, 6 - blackNoteWidth * 0.3f,
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6.0f };
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const int octave = midiNoteNumber / 12;
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const int note = midiNoteNumber % 12;
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x = roundToInt (octave * 7.0f * keyWidth_ + notePos [note] * keyWidth_);
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w = roundToInt (MidiMessage::isMidiNoteBlack (note) ? blackNoteWidth * keyWidth_ : keyWidth_);
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}
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void SurjectiveMidiKeyboardComponent::getKeyPos (int midiNoteNumber, int& x, int& w) const
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{
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getKeyPosition (midiNoteNumber, keyWidth, x, w);
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int rx, rw;
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getKeyPosition (rangeStart, keyWidth, rx, rw);
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x -= xOffset + rx;
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}
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Rectangle<int> SurjectiveMidiKeyboardComponent::getRectangleForKey (const int note) const
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{
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jassert (note >= rangeStart && note <= rangeEnd);
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int x, w;
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getKeyPos (note, x, w);
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if (MidiMessage::isMidiNoteBlack (note))
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{
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const int blackNoteLength = getBlackNoteLength();
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switch (orientation)
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{
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case horizontalKeyboard: return Rectangle<int> (x, 0, w, blackNoteLength);
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case verticalKeyboardFacingLeft: return Rectangle<int> (getWidth() - blackNoteLength, x, blackNoteLength, w);
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case verticalKeyboardFacingRight: return Rectangle<int> (0, getHeight() - x - w, blackNoteLength, w);
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default: jassertfalse; break;
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}
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}
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else
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{
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switch (orientation)
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{
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case horizontalKeyboard: return Rectangle<int> (x, 0, w, getHeight());
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case verticalKeyboardFacingLeft: return Rectangle<int> (0, x, getWidth(), w);
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case verticalKeyboardFacingRight: return Rectangle<int> (0, getHeight() - x - w, getWidth(), w);
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default: jassertfalse; break;
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}
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}
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return Rectangle<int>();
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}
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int SurjectiveMidiKeyboardComponent::getKeyStartPosition (const int midiNoteNumber) const
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{
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int x, w;
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getKeyPos (midiNoteNumber, x, w);
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return x;
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}
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int SurjectiveMidiKeyboardComponent::getTotalKeyboardWidth() const noexcept
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{
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int x, w;
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getKeyPos (rangeEnd, x, w);
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return x + w;
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}
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int SurjectiveMidiKeyboardComponent::getNoteAtPosition (Point<int> p)
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{
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float v;
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return xyToNote (p, v);
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}
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const uint8 SurjectiveMidiKeyboardComponent::whiteNotes[] = { 0, 2, 4, 5, 7, 9, 11 };
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const uint8 SurjectiveMidiKeyboardComponent::blackNotes[] = { 1, 3, 6, 8, 10 };
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int SurjectiveMidiKeyboardComponent::xyToNote (Point<int> pos, float& mousePositionVelocity)
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{
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if (! reallyContains (pos, false))
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return -1;
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Point<int> p (pos);
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if (orientation != horizontalKeyboard)
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{
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p = Point<int> (p.y, p.x);
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if (orientation == verticalKeyboardFacingLeft)
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p = Point<int> (p.x, getWidth() - p.y);
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else
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p = Point<int> (getHeight() - p.x, p.y);
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}
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return remappedXYToNote (p + Point<int> (xOffset, 0), mousePositionVelocity);
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}
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int SurjectiveMidiKeyboardComponent::remappedXYToNote (Point<int> pos, float& mousePositionVelocity) const
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{
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const int blackNoteLength = getBlackNoteLength();
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if (pos.getY() < blackNoteLength)
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{
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for (int octaveStart = 12 * (rangeStart / 12); octaveStart <= rangeEnd; octaveStart += 12)
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{
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for (int i = 0; i < 5; ++i)
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{
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const int note = octaveStart + blackNotes [i];
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if (note >= rangeStart && note <= rangeEnd)
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{
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int kx, kw;
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getKeyPos (note, kx, kw);
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kx += xOffset;
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if (pos.x >= kx && pos.x < kx + kw)
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{
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mousePositionVelocity = pos.y / (float) blackNoteLength;
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return note;
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}
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}
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}
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}
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}
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for (int octaveStart = 12 * (rangeStart / 12); octaveStart <= rangeEnd; octaveStart += 12)
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{
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for (int i = 0; i < 7; ++i)
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{
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const int note = octaveStart + whiteNotes [i];
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if (note >= rangeStart && note <= rangeEnd)
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{
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int kx, kw;
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getKeyPos (note, kx, kw);
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kx += xOffset;
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if (pos.x >= kx && pos.x < kx + kw)
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{
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const int whiteNoteLength = (orientation == horizontalKeyboard) ? getHeight() : getWidth();
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mousePositionVelocity = pos.y / (float) whiteNoteLength;
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return note;
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}
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}
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}
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}
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mousePositionVelocity = 0;
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return -1;
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}
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//==============================================================================
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void SurjectiveMidiKeyboardComponent::repaintNote (const int noteNum)
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{
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if (noteNum >= rangeStart && noteNum <= rangeEnd)
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repaint (getRectangleForKey (noteNum));
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}
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void SurjectiveMidiKeyboardComponent::paint (Graphics& g)
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{
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g.fillAll (findColour (whiteNoteColourId));
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const Colour lineColour (findColour (keySeparatorLineColourId));
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const Colour textColour (findColour (textLabelColourId));
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for (int octave = 0; octave < 128; octave += 12)
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{
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for (int white = 0; white < 7; ++white)
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{
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const int noteNum = octave + whiteNotes [white];
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if (noteNum >= rangeStart && noteNum <= rangeEnd)
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{
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Rectangle<int> pos = getRectangleForKey (noteNum);
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drawWhiteNote (noteNum, g, pos.getX(), pos.getY(), pos.getWidth(), pos.getHeight(),
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state.isNoteOnForChannels (midiInChannelMask, noteNum),
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mouseOverNotes.contains (noteNum), lineColour, textColour);
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}
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}
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}
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float x1 = 0.0f, y1 = 0.0f, x2 = 0.0f, y2 = 0.0f;
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const int width = getWidth();
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const int height = getHeight();
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if (orientation == verticalKeyboardFacingLeft)
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{
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x1 = width - 1.0f;
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x2 = width - 5.0f;
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}
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else if (orientation == verticalKeyboardFacingRight)
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x2 = 5.0f;
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else
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y2 = 5.0f;
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int x, w;
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getKeyPos (rangeEnd, x, w);
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x += w;
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const Colour shadowCol (findColour (shadowColourId));
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if (! shadowCol.isTransparent())
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{
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g.setGradientFill (ColourGradient (shadowCol, x1, y1, shadowCol.withAlpha (0.0f), x2, y2, false));
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switch (orientation)
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{
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case horizontalKeyboard: g.fillRect (0, 0, x, 5); break;
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case verticalKeyboardFacingLeft: g.fillRect (width - 5, 0, 5, x); break;
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case verticalKeyboardFacingRight: g.fillRect (0, 0, 5, x); break;
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default: break;
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}
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}
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if (! lineColour.isTransparent())
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{
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g.setColour (lineColour);
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switch (orientation)
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{
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case horizontalKeyboard: g.fillRect (0, height - 1, x, 1); break;
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case verticalKeyboardFacingLeft: g.fillRect (0, 0, 1, x); break;
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case verticalKeyboardFacingRight: g.fillRect (width - 1, 0, 1, x); break;
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default: break;
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}
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}
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const Colour blackNoteColour (findColour (blackNoteColourId));
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for (int octave = 0; octave < 128; octave += 12)
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{
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for (int black = 0; black < 5; ++black)
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{
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const int noteNum = octave + blackNotes [black];
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if (noteNum >= rangeStart && noteNum <= rangeEnd)
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{
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Rectangle<int> pos = getRectangleForKey (noteNum);
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drawBlackNote (noteNum, g, pos.getX(), pos.getY(), pos.getWidth(), pos.getHeight(),
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state.isNoteOnForChannels (midiInChannelMask, noteNum),
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mouseOverNotes.contains (noteNum), blackNoteColour);
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}
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}
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}
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}
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void SurjectiveMidiKeyboardComponent::drawWhiteNote (int midiNoteNumber,
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Graphics& g, int x, int y, int w, int h,
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bool isDown, bool isOver,
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const Colour& lineColour,
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const Colour& textColour)
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{
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Colour c (Colours::transparentWhite);
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if (isDown) c = findColour (keyDownOverlayColourId);
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if (isOver) c = c.overlaidWith (findColour (mouseOverKeyOverlayColourId));
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g.setColour (c);
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g.fillRect (x, y, w, h);
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const String text (getWhiteNoteText (midiNoteNumber));
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if (text.isNotEmpty())
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{
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const float fontHeight = jmin (12.0f, keyWidth * 0.9f);
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g.setColour (textColour);
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g.setFont (Font (fontHeight).withHorizontalScale (0.8f));
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switch (orientation)
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{
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case horizontalKeyboard: g.drawText (text, x + 1, y, w - 1, h - 2, Justification::centredBottom, false); break;
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case verticalKeyboardFacingLeft: g.drawText (text, x + 2, y + 2, w - 4, h - 4, Justification::centredLeft, false); break;
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case verticalKeyboardFacingRight: g.drawText (text, x + 2, y + 2, w - 4, h - 4, Justification::centredRight, false); break;
|
|
default: break;
|
|
}
|
|
}
|
|
|
|
if (! lineColour.isTransparent())
|
|
{
|
|
g.setColour (lineColour);
|
|
|
|
switch (orientation)
|
|
{
|
|
case horizontalKeyboard: g.fillRect (x, y, 1, h); break;
|
|
case verticalKeyboardFacingLeft: g.fillRect (x, y, w, 1); break;
|
|
case verticalKeyboardFacingRight: g.fillRect (x, y + h - 1, w, 1); break;
|
|
default: break;
|
|
}
|
|
|
|
if (midiNoteNumber == rangeEnd)
|
|
{
|
|
switch (orientation)
|
|
{
|
|
case horizontalKeyboard: g.fillRect (x + w, y, 1, h); break;
|
|
case verticalKeyboardFacingLeft: g.fillRect (x, y + h, w, 1); break;
|
|
case verticalKeyboardFacingRight: g.fillRect (x, y - 1, w, 1); break;
|
|
default: break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void SurjectiveMidiKeyboardComponent::drawBlackNote (int /*midiNoteNumber*/,
|
|
Graphics& g, int x, int y, int w, int h,
|
|
bool isDown, bool isOver,
|
|
const Colour& noteFillColour)
|
|
{
|
|
Colour c (noteFillColour);
|
|
|
|
if (isDown) c = c.overlaidWith (findColour (keyDownOverlayColourId));
|
|
if (isOver) c = c.overlaidWith (findColour (mouseOverKeyOverlayColourId));
|
|
|
|
g.setColour (c);
|
|
g.fillRect (x, y, w, h);
|
|
|
|
if (isDown)
|
|
{
|
|
g.setColour (noteFillColour);
|
|
g.drawRect (x, y, w, h);
|
|
}
|
|
else
|
|
{
|
|
g.setColour (c.brighter());
|
|
const int xIndent = jmax (1, jmin (w, h) / 8);
|
|
|
|
switch (orientation)
|
|
{
|
|
case horizontalKeyboard: g.fillRect (x + xIndent, y, w - xIndent * 2, 7 * h / 8); break;
|
|
case verticalKeyboardFacingLeft: g.fillRect (x + w / 8, y + xIndent, w - w / 8, h - xIndent * 2); break;
|
|
case verticalKeyboardFacingRight: g.fillRect (x, y + xIndent, 7 * w / 8, h - xIndent * 2); break;
|
|
default: break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void SurjectiveMidiKeyboardComponent::setOctaveForMiddleC (const int octaveNum)
|
|
{
|
|
octaveNumForMiddleC = octaveNum;
|
|
repaint();
|
|
}
|
|
|
|
String SurjectiveMidiKeyboardComponent::getWhiteNoteText (const int midiNoteNumber)
|
|
{
|
|
if (midiNoteNumber % 12 == 0)
|
|
return MidiMessage::getMidiNoteName (midiNoteNumber, true, true, octaveNumForMiddleC);
|
|
|
|
return {};
|
|
}
|
|
|
|
void SurjectiveMidiKeyboardComponent::drawUpDownButton (Graphics& g, int w, int h,
|
|
const bool mouseOver,
|
|
const bool buttonDown,
|
|
const bool movesOctavesUp)
|
|
{
|
|
g.fillAll (findColour (upDownButtonBackgroundColourId));
|
|
|
|
float angle;
|
|
|
|
switch (orientation)
|
|
{
|
|
case horizontalKeyboard: angle = movesOctavesUp ? 0.0f : 0.5f; break;
|
|
case verticalKeyboardFacingLeft: angle = movesOctavesUp ? 0.25f : 0.75f; break;
|
|
case verticalKeyboardFacingRight: angle = movesOctavesUp ? 0.75f : 0.25f; break;
|
|
default: jassertfalse; angle = 0; break;
|
|
}
|
|
|
|
Path path;
|
|
path.addTriangle (0.0f, 0.0f, 0.0f, 1.0f, 1.0f, 0.5f);
|
|
path.applyTransform (AffineTransform::rotation (float_Pi * 2.0f * angle, 0.5f, 0.5f));
|
|
|
|
g.setColour (findColour (upDownButtonArrowColourId)
|
|
.withAlpha (buttonDown ? 1.0f : (mouseOver ? 0.6f : 0.4f)));
|
|
|
|
g.fillPath (path, path.getTransformToScaleToFit (1.0f, 1.0f, w - 2.0f, h - 2.0f, true));
|
|
}
|
|
|
|
void SurjectiveMidiKeyboardComponent::setBlackNoteLengthProportion (float ratio) noexcept
|
|
{
|
|
jassert (ratio >= 0.0f && ratio <= 1.0f);
|
|
if (blackNoteLengthRatio != ratio)
|
|
{
|
|
blackNoteLengthRatio = ratio;
|
|
resized();
|
|
}
|
|
}
|
|
|
|
int SurjectiveMidiKeyboardComponent::getBlackNoteLength() const noexcept
|
|
{
|
|
const int whiteNoteLength = orientation == horizontalKeyboard ? getHeight() : getWidth();
|
|
|
|
return roundToInt (whiteNoteLength * blackNoteLengthRatio);
|
|
}
|
|
|
|
void SurjectiveMidiKeyboardComponent::resized()
|
|
{
|
|
int w = getWidth();
|
|
int h = getHeight();
|
|
|
|
if (w > 0 && h > 0)
|
|
{
|
|
if (orientation != horizontalKeyboard)
|
|
std::swap (w, h);
|
|
|
|
int kx2, kw2;
|
|
getKeyPos (rangeEnd, kx2, kw2);
|
|
|
|
kx2 += kw2;
|
|
|
|
if ((int) firstKey != rangeStart)
|
|
{
|
|
int kx1, kw1;
|
|
getKeyPos (rangeStart, kx1, kw1);
|
|
|
|
if (kx2 - kx1 <= w)
|
|
{
|
|
firstKey = (float) rangeStart;
|
|
sendChangeMessage();
|
|
repaint();
|
|
}
|
|
}
|
|
|
|
scrollDown->setVisible (canScroll && firstKey > (float) rangeStart);
|
|
|
|
xOffset = 0;
|
|
|
|
if (canScroll)
|
|
{
|
|
const int scrollButtonW = jmin (12, w / 2);
|
|
Rectangle<int> r (getLocalBounds());
|
|
|
|
if (orientation == horizontalKeyboard)
|
|
{
|
|
scrollDown->setBounds (r.removeFromLeft (scrollButtonW));
|
|
scrollUp ->setBounds (r.removeFromRight (scrollButtonW));
|
|
}
|
|
else if (orientation == verticalKeyboardFacingLeft)
|
|
{
|
|
scrollDown->setBounds (r.removeFromTop (scrollButtonW));
|
|
scrollUp ->setBounds (r.removeFromBottom (scrollButtonW));
|
|
}
|
|
else
|
|
{
|
|
scrollDown->setBounds (r.removeFromBottom (scrollButtonW));
|
|
scrollUp ->setBounds (r.removeFromTop (scrollButtonW));
|
|
}
|
|
|
|
int endOfLastKey, kw;
|
|
getKeyPos (rangeEnd, endOfLastKey, kw);
|
|
endOfLastKey += kw;
|
|
|
|
float mousePositionVelocity;
|
|
const int spaceAvailable = w;
|
|
const int lastStartKey = remappedXYToNote (Point<int> (endOfLastKey - spaceAvailable, 0), mousePositionVelocity) + 1;
|
|
|
|
if (lastStartKey >= 0 && ((int) firstKey) > lastStartKey)
|
|
{
|
|
firstKey = (float) jlimit (rangeStart, rangeEnd, lastStartKey);
|
|
sendChangeMessage();
|
|
}
|
|
|
|
int newOffset = 0;
|
|
getKeyPos ((int) firstKey, newOffset, kw);
|
|
xOffset = newOffset;
|
|
}
|
|
else
|
|
{
|
|
firstKey = (float) rangeStart;
|
|
}
|
|
|
|
getKeyPos (rangeEnd, kx2, kw2);
|
|
scrollUp->setVisible (canScroll && kx2 > w);
|
|
repaint();
|
|
}
|
|
}
|
|
|
|
//==============================================================================
|
|
void SurjectiveMidiKeyboardComponent::handleNoteOn (MidiKeyboardState*, int /*midiChannel*/, int /*midiNoteNumber*/, float /*velocity*/)
|
|
{
|
|
shouldCheckState = true; // (probably being called from the audio thread, so avoid blocking in here)
|
|
}
|
|
|
|
void SurjectiveMidiKeyboardComponent::handleNoteOff (MidiKeyboardState*, int /*midiChannel*/, int /*midiNoteNumber*/, float /*velocity*/)
|
|
{
|
|
shouldCheckState = true; // (probably being called from the audio thread, so avoid blocking in here)
|
|
}
|
|
|
|
//==============================================================================
|
|
void SurjectiveMidiKeyboardComponent::resetAnyKeysInUse()
|
|
{
|
|
if (! keysPressed.isZero())
|
|
{
|
|
for (int i = 128; --i >= 0;)
|
|
if (keysPressed[i])
|
|
state.noteOff (midiChannel, i, 0.0f);
|
|
|
|
keysPressed.clear();
|
|
}
|
|
|
|
for (int i = mouseDownNotes.size(); --i >= 0;)
|
|
{
|
|
const int noteDown = mouseDownNotes.getUnchecked(i);
|
|
|
|
if (noteDown >= 0)
|
|
{
|
|
state.noteOff (midiChannel, noteDown, 0.0f);
|
|
mouseDownNotes.set (i, -1);
|
|
}
|
|
|
|
mouseOverNotes.set (i, -1);
|
|
}
|
|
}
|
|
|
|
void SurjectiveMidiKeyboardComponent::updateNoteUnderMouse (const MouseEvent& e, bool isDown)
|
|
{
|
|
updateNoteUnderMouse (e.getEventRelativeTo (this).getPosition(), isDown, e.source.getIndex());
|
|
}
|
|
|
|
void SurjectiveMidiKeyboardComponent::updateNoteUnderMouse (Point<int> pos, bool isDown, int fingerNum)
|
|
{
|
|
float mousePositionVelocity = 0.0f;
|
|
const int newNote = xyToNote (pos, mousePositionVelocity);
|
|
const int oldNote = mouseOverNotes.getUnchecked (fingerNum);
|
|
const int oldNoteDown = mouseDownNotes.getUnchecked (fingerNum);
|
|
const float eventVelocity = useMousePositionForVelocity ? mousePositionVelocity * velocity : 1.0f;
|
|
|
|
if (oldNote != newNote)
|
|
{
|
|
repaintNote (oldNote);
|
|
repaintNote (newNote);
|
|
mouseOverNotes.set (fingerNum, newNote);
|
|
}
|
|
|
|
if (isDown)
|
|
{
|
|
if (newNote != oldNoteDown)
|
|
{
|
|
if (oldNoteDown >= 0)
|
|
{
|
|
mouseDownNotes.set (fingerNum, -1);
|
|
|
|
if (! mouseDownNotes.contains (oldNoteDown))
|
|
state.noteOff (midiChannel, oldNoteDown, eventVelocity);
|
|
}
|
|
|
|
if (newNote >= 0 && ! mouseDownNotes.contains (newNote))
|
|
{
|
|
state.noteOn (midiChannel, newNote, eventVelocity);
|
|
mouseDownNotes.set (fingerNum, newNote);
|
|
}
|
|
}
|
|
}
|
|
else if (oldNoteDown >= 0)
|
|
{
|
|
mouseDownNotes.set (fingerNum, -1);
|
|
|
|
if (! mouseDownNotes.contains (oldNoteDown))
|
|
state.noteOff (midiChannel, oldNoteDown, eventVelocity);
|
|
}
|
|
}
|
|
|
|
void SurjectiveMidiKeyboardComponent::mouseMove (const MouseEvent& e)
|
|
{
|
|
updateNoteUnderMouse (e, false);
|
|
shouldCheckMousePos = false;
|
|
}
|
|
|
|
void SurjectiveMidiKeyboardComponent::mouseDrag (const MouseEvent& e)
|
|
{
|
|
float mousePositionVelocity;
|
|
const int newNote = xyToNote (e.getPosition(), mousePositionVelocity);
|
|
|
|
if (newNote >= 0)
|
|
mouseDraggedToKey (newNote, e);
|
|
|
|
updateNoteUnderMouse (e, true);
|
|
}
|
|
|
|
bool SurjectiveMidiKeyboardComponent::mouseDownOnKey (int, const MouseEvent&) { return true; }
|
|
void SurjectiveMidiKeyboardComponent::mouseDraggedToKey (int, const MouseEvent&) {}
|
|
void SurjectiveMidiKeyboardComponent::mouseUpOnKey (int, const MouseEvent&) {}
|
|
|
|
void SurjectiveMidiKeyboardComponent::mouseDown (const MouseEvent& e)
|
|
{
|
|
float mousePositionVelocity;
|
|
const int newNote = xyToNote (e.getPosition(), mousePositionVelocity);
|
|
|
|
if (newNote >= 0 && mouseDownOnKey (newNote, e))
|
|
{
|
|
updateNoteUnderMouse (e, true);
|
|
shouldCheckMousePos = true;
|
|
}
|
|
}
|
|
|
|
void SurjectiveMidiKeyboardComponent::mouseUp (const MouseEvent& e)
|
|
{
|
|
updateNoteUnderMouse (e, false);
|
|
shouldCheckMousePos = false;
|
|
|
|
float mousePositionVelocity;
|
|
const int note = xyToNote (e.getPosition(), mousePositionVelocity);
|
|
if (note >= 0)
|
|
mouseUpOnKey (note, e);
|
|
}
|
|
|
|
void SurjectiveMidiKeyboardComponent::mouseEnter (const MouseEvent& e)
|
|
{
|
|
updateNoteUnderMouse (e, false);
|
|
}
|
|
|
|
void SurjectiveMidiKeyboardComponent::mouseExit (const MouseEvent& e)
|
|
{
|
|
updateNoteUnderMouse (e, false);
|
|
}
|
|
|
|
void SurjectiveMidiKeyboardComponent::mouseWheelMove (const MouseEvent&, const MouseWheelDetails& wheel)
|
|
{
|
|
const float amount = (orientation == horizontalKeyboard && wheel.deltaX != 0)
|
|
? wheel.deltaX : (orientation == verticalKeyboardFacingLeft ? wheel.deltaY
|
|
: -wheel.deltaY);
|
|
|
|
setLowestVisibleKeyFloat (firstKey - amount * keyWidth);
|
|
}
|
|
|
|
void SurjectiveMidiKeyboardComponent::timerCallback()
|
|
{
|
|
if (shouldCheckState)
|
|
{
|
|
shouldCheckState = false;
|
|
|
|
for (int i = rangeStart; i <= rangeEnd; ++i)
|
|
{
|
|
if (keysCurrentlyDrawnDown[i] != state.isNoteOnForChannels (midiInChannelMask, i))
|
|
{
|
|
keysCurrentlyDrawnDown.setBit (i, state.isNoteOnForChannels (midiInChannelMask, i));
|
|
repaintNote (i);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (shouldCheckMousePos)
|
|
{
|
|
for (auto& ms : Desktop::getInstance().getMouseSources())
|
|
if (ms.getComponentUnderMouse() == this || isParentOf (ms.getComponentUnderMouse()))
|
|
updateNoteUnderMouse (getLocalPoint (nullptr, ms.getScreenPosition()).roundToInt(), ms.isDragging(), ms.getIndex());
|
|
}
|
|
}
|
|
|
|
//==============================================================================
|
|
void SurjectiveMidiKeyboardComponent::clearKeyMappings()
|
|
{
|
|
resetAnyKeysInUse();
|
|
degreeToAsciis.clear();
|
|
}
|
|
|
|
void SurjectiveMidiKeyboardComponent::setKeyPressForNote (const KeyPress& key, int midiNoteOffsetFromC)
|
|
{
|
|
degreeToAsciis.insert(DegreeToAscii::value_type(midiNoteOffsetFromC, key));
|
|
}
|
|
|
|
void SurjectiveMidiKeyboardComponent::removeKeyPressForNote (const int midiNoteOffsetFromC)
|
|
{
|
|
degreeToAsciis.erase(midiNoteOffsetFromC);
|
|
}
|
|
|
|
void SurjectiveMidiKeyboardComponent::setKeyPressBaseOctave (const int newOctaveNumber)
|
|
{
|
|
jassert (newOctaveNumber >= 0 && newOctaveNumber <= 10);
|
|
|
|
keyMappingOctave = newOctaveNumber;
|
|
}
|
|
|
|
bool SurjectiveMidiKeyboardComponent::keyStateChanged (const bool /*isKeyDown*/)
|
|
{
|
|
bool keyPressUsed = false;
|
|
|
|
bool keyDepressedForCurrentNote = false;
|
|
int currentNote = -1;
|
|
for (auto it = degreeToAsciis.begin(); it != degreeToAsciis.end(); it++){
|
|
const int proposedNote = 12 * keyMappingOctave + it->first;
|
|
if (proposedNote != currentNote) {
|
|
if (currentNote != -1
|
|
&& !keyDepressedForCurrentNote
|
|
&& keysPressed[currentNote]) {
|
|
keysPressed.clearBit(currentNote);
|
|
state.noteOff(midiChannel, currentNote, velocity);
|
|
keyPressUsed = true;
|
|
}
|
|
keyDepressedForCurrentNote = false;
|
|
currentNote = proposedNote;
|
|
}
|
|
if (!keyDepressedForCurrentNote
|
|
&& it->second.isCurrentlyDown()) {
|
|
keyDepressedForCurrentNote = true;
|
|
if (!keysPressed[currentNote]) {
|
|
keysPressed.setBit(currentNote);
|
|
state.noteOn(midiChannel, currentNote, velocity);
|
|
keyPressUsed = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (currentNote != -1
|
|
&& !keyDepressedForCurrentNote
|
|
&& keysPressed[currentNote]) {
|
|
keysPressed.clearBit(currentNote);
|
|
state.noteOff(midiChannel, currentNote, velocity);
|
|
}
|
|
|
|
return keyPressUsed;
|
|
}
|
|
|
|
bool SurjectiveMidiKeyboardComponent::keyPressed (const KeyPress& key)
|
|
{
|
|
for (auto it = degreeToAsciis.begin(); it != degreeToAsciis.end(); it++){
|
|
if (it->second == key) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void SurjectiveMidiKeyboardComponent::focusLost (FocusChangeType)
|
|
{
|
|
resetAnyKeysInUse();
|
|
}
|