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https://github.com/juce-framework/JUCE.git
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335 lines
14 KiB
C++
335 lines
14 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2015 - ROLI Ltd.
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Permission is granted to use this software under the terms of either:
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a) the GPL v2 (or any later version)
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b) the Affero GPL v3
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Details of these licenses can be found at: www.gnu.org/licenses
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JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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------------------------------------------------------------------------------
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To release a closed-source product which uses JUCE, commercial licenses are
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available: visit www.juce.com for more information.
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==============================================================================
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*/
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#ifndef MPESETUPCOMPONENT_H_INCLUDED
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#define MPESETUPCOMPONENT_H_INCLUDED
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class MPESetupComponent : public Component,
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public ChangeBroadcaster,
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private Button::Listener,
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private ComboBox::Listener
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{
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public:
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//==============================================================================
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class Listener
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{
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public:
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virtual ~Listener() {}
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virtual void zoneAdded (MPEZone newZone) = 0;
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virtual void allZonesCleared() = 0;
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virtual void legacyModeChanged (bool legacyModeEnabled, int pitchbendRange, Range<int> channelRange) = 0;
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virtual void voiceStealingEnabledChanged (bool voiceStealingEnabled) = 0;
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virtual void numberOfVoicesChanged (int numberOfVoices) = 0;
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};
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void addListener (Listener* listenerToAdd) { listeners.add (listenerToAdd); }
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void removeListener (Listener* listenerToRemove) { listeners.remove (listenerToRemove); }
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//==============================================================================
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MPESetupComponent()
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: masterChannelLabel (String(), "Master channel:"),
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noteChannelsLabel (String(), "Nr. of note channels:"),
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masterPitchbendRangeLabel (String(), "Master pitchbend range (semitones):"),
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notePitchbendRangeLabel (String(), "Note pitchbend range (semitones):"),
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addZoneButton ("Add this zone"),
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clearAllZonesButton ("Clear all zones"),
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legacyStartChannelLabel (String(), "First channel:"),
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legacyEndChannelLabel (String(), "Last channel:"),
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legacyPitchbendRangeLabel (String(), "Pitchbend range (semitones):"),
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legacyModeEnabledToggle ("Enable Legacy Mode"),
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voiceStealingEnabledToggle ("Enable synth voice stealing"),
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numberOfVoicesLabel (String(), "Number of synth voices")
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{
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initialiseComboBoxWithConsecutiveIntegers (masterChannel, masterChannelLabel, 1, 15, defaultMasterChannel);
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initialiseComboBoxWithConsecutiveIntegers (noteChannels, noteChannelsLabel, 1, 15, defaultNoteChannels);
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initialiseComboBoxWithConsecutiveIntegers (masterPitchbendRange, masterPitchbendRangeLabel, 0, 96, defaultMasterPitchbendRange);
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initialiseComboBoxWithConsecutiveIntegers (notePitchbendRange, notePitchbendRangeLabel, 0, 96, defaultNotePitchbendRange);
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initialiseComboBoxWithConsecutiveIntegers (legacyStartChannel, legacyStartChannelLabel, 1, 16, 1, false);
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initialiseComboBoxWithConsecutiveIntegers (legacyEndChannel, legacyEndChannelLabel, 1, 16, 16, false);
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initialiseComboBoxWithConsecutiveIntegers (legacyPitchbendRange, legacyPitchbendRangeLabel, 0, 96, 2, false);
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initialiseButton (addZoneButton);
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initialiseButton (clearAllZonesButton);
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initialiseButton (legacyModeEnabledToggle);
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initialiseButton (voiceStealingEnabledToggle);
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initialiseComboBoxWithConsecutiveIntegers (numberOfVoices, numberOfVoicesLabel, 1, 20, 15);
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numberOfVoices.addListener (this);
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}
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//==============================================================================
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void resized() override
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{
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Rectangle<int> r (proportionOfWidth (0.65f), 15, proportionOfWidth (0.25f), 3000);
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const int h = 24;
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const int hspace = 6;
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const int hbigspace = 18;
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masterChannel.setBounds (r.removeFromTop (h));
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r.removeFromTop (hspace);
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noteChannels.setBounds (r.removeFromTop (h));
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r.removeFromTop (hspace);
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notePitchbendRange.setBounds (r.removeFromTop (h));
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r.removeFromTop (hspace);
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masterPitchbendRange.setBounds (r.removeFromTop (h));
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legacyStartChannel.setBounds (masterChannel.getBounds());
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legacyEndChannel.setBounds (noteChannels.getBounds());
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legacyPitchbendRange.setBounds (notePitchbendRange.getBounds());
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r.removeFromTop (hbigspace);
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int buttonLeft = proportionOfWidth (0.5f);
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addZoneButton.setBounds (r.removeFromTop (h).withLeft (buttonLeft));
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r.removeFromTop (hspace);
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clearAllZonesButton.setBounds (r.removeFromTop (h).withLeft (buttonLeft));
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r.removeFromTop (hbigspace);
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int toggleLeft = proportionOfWidth (0.25f);
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legacyModeEnabledToggle.setBounds (r.removeFromTop (h).withLeft (toggleLeft));
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r.removeFromTop (hspace);
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voiceStealingEnabledToggle.setBounds (r.removeFromTop (h).withLeft (toggleLeft));
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r.removeFromTop (hspace);
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numberOfVoices.setBounds (r.removeFromTop (h));
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}
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private:
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//==============================================================================
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void initialiseComboBoxWithConsecutiveIntegers (ComboBox& comboBox, Label& labelToAttach,
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int firstValue, int numValues, int valueToSelect,
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bool makeVisible = true)
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{
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for (int i = 0; i < numValues; ++i)
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comboBox.addItem (String (i + firstValue), i + 1);
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comboBox.setSelectedId (valueToSelect - firstValue + 1);
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labelToAttach.attachToComponent (&comboBox, true);
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if (makeVisible)
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addAndMakeVisible (comboBox);
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else
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addChildComponent (comboBox);
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comboBox.addListener (this);
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}
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//==============================================================================
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void initialiseButton (Button& button)
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{
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addAndMakeVisible (button);
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button.addListener (this);
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}
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//==============================================================================
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void buttonClicked (Button* button) override
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{
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if (button == &addZoneButton)
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addZoneButtonClicked();
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else if (button == &clearAllZonesButton)
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clearAllZonesButtonClicked();
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else if (button == &legacyModeEnabledToggle)
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legacyModeEnabledToggleClicked();
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else if (button == &voiceStealingEnabledToggle)
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voiceStealingEnabledToggleClicked();
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}
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//==============================================================================
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void addZoneButtonClicked()
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{
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if (areMPEParametersValid())
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{
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MPEZone newZone (masterChannel.getText().getIntValue(),
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noteChannels.getText().getIntValue(),
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notePitchbendRange.getText().getIntValue(),
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masterPitchbendRange.getText().getIntValue());
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zoneLayout.addZone (newZone);
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listeners.call (&MPESetupComponent::Listener::zoneAdded, newZone);
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}
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else
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{
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handleInvalidMPEParameters();
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}
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}
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//==============================================================================
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void clearAllZonesButtonClicked()
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{
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zoneLayout.clearAllZones();
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listeners.call (&MPESetupComponent::Listener::allZonesCleared);
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}
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//==============================================================================
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void legacyModeEnabledToggleClicked()
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{
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bool legacyModeEnabled = legacyModeEnabledToggle.getToggleState();
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masterChannel.setVisible (! legacyModeEnabled);
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noteChannels.setVisible (! legacyModeEnabled);
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notePitchbendRange.setVisible (! legacyModeEnabled);
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masterPitchbendRange.setVisible (! legacyModeEnabled);
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addZoneButton.setVisible (! legacyModeEnabled);
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clearAllZonesButton.setVisible (! legacyModeEnabled);
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legacyStartChannel.setVisible (legacyModeEnabled);
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legacyEndChannel.setVisible (legacyModeEnabled);
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legacyPitchbendRange.setVisible (legacyModeEnabled);
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if (areLegacyModeParametersValid())
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{
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listeners.call (&MPESetupComponent::Listener::legacyModeChanged,
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legacyModeEnabledToggle.getToggleState(),
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legacyPitchbendRange.getText().getIntValue(),
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getLegacyModeChannelRange());
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}
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else
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{
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handleInvalidLegacyModeParameters();
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}
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}
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//==============================================================================
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void voiceStealingEnabledToggleClicked()
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{
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listeners.call (&MPESetupComponent::Listener::voiceStealingEnabledChanged,
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voiceStealingEnabledToggle.getToggleState());
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}
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//==============================================================================
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void comboBoxChanged (ComboBox* comboBoxThatHasChanged) override
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{
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if (comboBoxThatHasChanged == &numberOfVoices)
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{
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numberOfVoicesChanged();
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}
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else if (legacyModeEnabledToggle.getToggleState() == true)
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{
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if (comboBoxThatHasChanged == &legacyPitchbendRange)
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legacyModePitchbendRangeChanged();
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else if (comboBoxThatHasChanged == &legacyStartChannel || comboBoxThatHasChanged == &legacyEndChannel)
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legacyModeChannelRangeChanged();
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}
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}
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//==============================================================================
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void numberOfVoicesChanged()
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{
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listeners.call (&MPESetupComponent::Listener::numberOfVoicesChanged,
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numberOfVoices.getText().getIntValue());
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}
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void legacyModePitchbendRangeChanged()
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{
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jassert (legacyModeEnabledToggle.getToggleState() == true);
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listeners.call (&MPESetupComponent::Listener::legacyModeChanged, true,
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legacyPitchbendRange.getText().getIntValue(),
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getLegacyModeChannelRange());
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}
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void legacyModeChannelRangeChanged()
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{
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jassert (legacyModeEnabledToggle.getToggleState() == true);
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if (areLegacyModeParametersValid())
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{
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listeners.call (&MPESetupComponent::Listener::legacyModeChanged, true,
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legacyPitchbendRange.getText().getIntValue(),
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getLegacyModeChannelRange());
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}
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else
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{
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handleInvalidLegacyModeParameters();
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}
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}
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//==============================================================================
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bool areMPEParametersValid() const
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{
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int maxPossibleNumNoteChannels = 16 - masterChannel.getText().getIntValue();
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return noteChannels.getText().getIntValue() <= maxPossibleNumNoteChannels;
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}
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void handleInvalidMPEParameters() const
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{
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AlertWindow::showMessageBoxAsync (AlertWindow::WarningIcon,
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"Invalid zone layout",
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"Cannot create MPE zone:\n"
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"Invalid zone parameters selected!",
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"Got it");
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}
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bool areLegacyModeParametersValid() const
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{
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return legacyStartChannel.getText().getIntValue() <= legacyEndChannel.getText().getIntValue();
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}
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void handleInvalidLegacyModeParameters() const
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{
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AlertWindow::showMessageBoxAsync (AlertWindow::WarningIcon,
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"Invalid legacy mode channel layout",
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"Cannot set legacy mode start/end channel:\n"
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"The end channel must not be less than the start channel!",
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"Got it");
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}
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//==============================================================================
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Range<int> getLegacyModeChannelRange() const
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{
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return Range<int> (legacyStartChannel.getText().getIntValue(),
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legacyEndChannel.getText().getIntValue() + 1);
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}
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//==============================================================================
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MPEZoneLayout zoneLayout;
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ComboBox masterChannel, noteChannels, masterPitchbendRange, notePitchbendRange;
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Label masterChannelLabel, noteChannelsLabel, masterPitchbendRangeLabel, notePitchbendRangeLabel;
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TextButton addZoneButton, clearAllZonesButton;
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ComboBox legacyStartChannel, legacyEndChannel, legacyPitchbendRange;
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Label legacyStartChannelLabel, legacyEndChannelLabel, legacyPitchbendRangeLabel;
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ToggleButton legacyModeEnabledToggle, voiceStealingEnabledToggle;
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ComboBox numberOfVoices;
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Label numberOfVoicesLabel;
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ListenerList<Listener> listeners;
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const int defaultMasterChannel = 1, defaultNoteChannels = 15,
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defaultMasterPitchbendRange = 2, defaultNotePitchbendRange = 48;
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (MPESetupComponent)
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};
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#endif // MPESETUPCOMPONENT_H_INCLUDED
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