Support for alternative tunings and keyboard mappings

data/projects/templates/default.mpt

@@ -81,5 +81,168 @@
     <projectnotes width="640" x="700" y="10" maximized="0" height="400" visible="0" minimized="0"></projectnotes>
     <timeline lp1pos="192" lp0pos="0" lpstate="0"/>
     <controllers/>
+    <scales>
+      <scale description="12-tone EDO (default)">
+        <interval num="1" den="1"/>
+        <interval cents="100"/>
+        <interval cents="200"/>
+        <interval cents="300"/>
+        <interval cents="400"/>
+        <interval cents="500"/>
+        <interval cents="600"/>
+        <interval cents="700"/>
+        <interval cents="800"/>
+        <interval cents="900"/>
+        <interval cents="1000"/>
+        <interval cents="1100"/>
+        <interval num="2" den="1"/>
+      </scale>
+      <scale description="24-tone EDO">
+        <interval num="1" den="1"/>
+        <interval cents="50"/>
+        <interval cents="100"/>
+        <interval cents="150"/>
+        <interval cents="200"/>
+        <interval cents="250"/>
+        <interval cents="300"/>
+        <interval cents="350"/>
+        <interval cents="400"/>
+        <interval cents="450"/>
+        <interval cents="500"/>
+        <interval cents="550"/>
+        <interval cents="600"/>
+        <interval cents="650"/>
+        <interval cents="700"/>
+        <interval cents="750"/>
+        <interval cents="800"/>
+        <interval cents="850"/>
+        <interval cents="900"/>
+        <interval cents="950"/>
+        <interval cents="1000"/>
+        <interval cents="1050"/>
+        <interval cents="1100"/>
+        <interval cents="1150"/>
+        <interval num="2" den="1"/>
+      </scale>
+      <scale description="7-tone JI C-major (Ptolemaic)">
+        <interval num="1" den="1"/>
+        <interval num="9" den="8"/>
+        <interval num="5" den="4"/>
+        <interval num="4" den="3"/>
+        <interval num="3" den="2"/>
+        <interval num="5" den="3"/>
+        <interval num="15" den="8"/>
+        <interval num="2" den="1"/>
+      </scale>
+      <scale description="12-tone JI (3-limit / Pythagorean)">
+        <interval num="1" den="1"/>
+        <interval num="256" den="243"/>
+        <interval num="9" den="8"/>
+        <interval num="32" den="27"/>
+        <interval num="81" den="64"/>
+        <interval num="4" den="3"/>
+        <interval num="729" den="512"/>
+        <interval num="3" den="2"/>
+        <interval num="128" den="81"/>
+        <interval num="27" den="16"/>
+        <interval num="16" den="9"/>
+        <interval num="243" den="128"/>
+        <interval num="2" den="1"/>
+      </scale>
+      <scale description="5-tone A-minor (3-limit / Pythagorean)">
+        <interval num="1" den="1"/>
+        <interval num="32" den="27"/>
+        <interval num="4" den="3"/>
+        <interval num="3" den="2"/>
+        <interval num="16" den="9"/>
+        <interval num="2" den="1"/>
+      </scale>
+    </scales>
+    <keymaps>
+      <keymap middle_key="0" description="all keys 1:1 (default)" base_freq="440" last_key="127" first_key="0" base_key="69">
+      </keymap>
+      <keymap middle_key="60" description="white keys to 7 degrees" base_freq="440" last_key="127" first_key="0" base_key="69">
+        <degree value="0"/>
+        <degree value="-1"/>
+        <degree value="1"/>
+        <degree value="-1"/>
+        <degree value="2"/>
+        <degree value="3"/>
+        <degree value="-1"/>
+        <degree value="4"/>
+        <degree value="-1"/>
+        <degree value="5"/>
+        <degree value="-1"/>
+        <degree value="6"/>
+      </keymap>
+      <keymap middle_key="60" description="white keys to 12 degrees" base_freq="440" last_key="127" first_key="0" base_key="69">
+        <degree value="0"/>
+        <degree value="-1"/>
+        <degree value="2"/>
+        <degree value="-1"/>
+        <degree value="4"/>
+        <degree value="5"/>
+        <degree value="-1"/>
+        <degree value="7"/>
+        <degree value="-1"/>
+        <degree value="9"/>
+        <degree value="-1"/>
+        <degree value="11"/>
+      </keymap>
+      <keymap middle_key="60" description="white keys to 24 degrees" base_freq="440" last_key="127" first_key="0" base_key="69">
+        <degree value="0"/>
+        <degree value="-1"/>
+        <degree value="2"/>
+        <degree value="-1"/>
+        <degree value="4"/>
+        <degree value="5"/>
+        <degree value="-1"/>
+        <degree value="7"/>
+        <degree value="-1"/>
+        <degree value="9"/>
+        <degree value="-1"/>
+        <degree value="11"/>
+        <degree value="12"/>
+        <degree value="-1"/>
+        <degree value="14"/>
+        <degree value="-1"/>
+        <degree value="16"/>
+        <degree value="17"/>
+        <degree value="-1"/>
+        <degree value="19"/>
+        <degree value="-1"/>
+        <degree value="21"/>
+        <degree value="-1"/>
+        <degree value="23"/>
+      </keymap>
+      <keymap middle_key="60" description="black keys to 5 degrees" base_freq="440" last_key="127" first_key="0" base_key="61">
+        <degree value="-1"/>
+        <degree value="0"/>
+        <degree value="-1"/>
+        <degree value="1"/>
+        <degree value="-1"/>
+        <degree value="-1"/>
+        <degree value="2"/>
+        <degree value="-1"/>
+        <degree value="3"/>
+        <degree value="-1"/>
+        <degree value="4"/>
+        <degree value="-1"/>
+      </keymap>
+      <keymap middle_key="60" description="black keys to 12 degrees" base_freq="466.165" last_key="127" first_key="0" base_key="70">
+        <degree value="-1"/>
+        <degree value="1"/>
+        <degree value="-1"/>
+        <degree value="3"/>
+        <degree value="-1"/>
+        <degree value="-1"/>
+        <degree value="6"/>
+        <degree value="-1"/>
+        <degree value="8"/>
+        <degree value="-1"/>
+        <degree value="10"/>
+        <degree value="-1"/>
+      </keymap>
+    </keymaps>
   </song>
 </lmms-project>

include/ComboBoxModel.h

@@ -25,6 +25,7 @@
 #ifndef COMBOBOX_MODEL_H
 #define COMBOBOX_MODEL_H
 
+#include <cassert>
 #include <memory>
 #include <utility>
 #include <vector>
@@ -52,6 +53,8 @@ class LMMS_EXPORT ComboBoxModel : public IntModel
 
 	void addItem( QString item, std::unique_ptr<PixmapLoader> loader = nullptr );
 
+	void replaceItem(std::size_t index, QString item, std::unique_ptr<PixmapLoader> loader = nullptr);
+
 	void clear();
 
 	int findText( const QString& txt ) const;

include/GuiApplication.h

@@ -37,6 +37,7 @@ class BBEditor;
 class ControllerRackView;
 class FxMixerView;
 class MainWindow;
+class MicrotunerConfig;
 class PianoRollWindow;
 class ProjectNotes;
 class SongEditorWindow;
@@ -59,6 +60,7 @@ class LMMS_EXPORT GuiApplication : public QObject
 	BBEditor* getBBEditor() { return m_bbEditor; }
 	PianoRollWindow* pianoRoll() { return m_pianoRoll; }
 	ProjectNotes* getProjectNotes() { return m_projectNotes; }
+	MicrotunerConfig* getMicrotunerConfig() { return m_microtunerConfig; }
 	AutomationEditorWindow* automationEditor() { return m_automationEditor; }
 	ControllerRackView* getControllerRackView() { return m_controllerRackView; }
 
@@ -78,6 +80,7 @@ private slots:
 	BBEditor* m_bbEditor;
 	PianoRollWindow* m_pianoRoll;
 	ProjectNotes* m_projectNotes;
+	MicrotunerConfig* m_microtunerConfig;
 	ControllerRackView* m_controllerRackView;
 	QLabel* m_loadingProgressLabel;
 };

include/InstrumentMidiIOView.h

@@ -65,22 +65,4 @@ class InstrumentMidiIOView : public QWidget, public ModelView
 
 } ;
 
-class InstrumentMiscView : public QWidget
-{
-	Q_OBJECT
-public:
-	InstrumentMiscView( InstrumentTrack *it, QWidget* parent );
-	~InstrumentMiscView();
-
-	GroupBox * pitchGroupBox()
-	{
-		return m_pitchGroupBox;
-	}
-
-private:
-
-	GroupBox * m_pitchGroupBox;
-
-};
-
 #endif

include/InstrumentMiscView.h

@@ -0,0 +1,63 @@
+/*
+ * InstrumentMiscView.h - widget in instrument-track-window for setting up
+ *                        miscellaneous options not covered by other tabs
+ *
+ * Copyright (c) 2005-2014 Tobias Doerffel <tobydox/at/users.sourceforge.net>
+ * Copyright (c) 2020 Martin Pavelek <he29.HS/at/gmail.com>
+ *
+ * This file is part of LMMS - https://lmms.io
+ *
+ * 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; either
+ * 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 (see COPYING); if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA.
+ *
+ */
+
+#ifndef INSTRUMENT_MISC_VIEW_H
+#define INSTRUMENT_MISC_VIEW_H
+
+#include <QWidget>
+
+
+class ComboBox;
+class GroupBox;
+class InstrumentTrack;
+class LedCheckBox;
+
+
+class InstrumentMiscView : public QWidget
+{
+	Q_OBJECT
+public:
+	InstrumentMiscView(InstrumentTrack *it, QWidget *parent);
+
+	GroupBox *pitchGroupBox() {return m_pitchGroupBox;}
+	GroupBox *microtunerGroupBox() {return m_microtunerGroupBox;}
+
+	ComboBox *scaleCombo() {return m_scaleCombo;}
+	ComboBox *keymapCombo() {return m_keymapCombo;}
+
+	LedCheckBox *rangeImportCheckbox() {return m_rangeImportCheckbox;}
+
+private:
+	GroupBox *m_pitchGroupBox;
+	GroupBox *m_microtunerGroupBox;
+
+	ComboBox *m_scaleCombo;
+	ComboBox *m_keymapCombo;
+
+	LedCheckBox *m_rangeImportCheckbox;
+};
+
+#endif

include/InstrumentTrack.h

@@ -30,6 +30,7 @@
 #include "GroupBox.h"
 #include "InstrumentFunctions.h"
 #include "InstrumentSoundShaping.h"
+#include "Microtuner.h"
 #include "Midi.h"
 #include "MidiCCRackView.h"
 #include "MidiEventProcessor.h"
@@ -184,15 +185,23 @@ class LMMS_EXPORT InstrumentTrack : public Track, public MidiEventProcessor
 		return &m_lastKeyModel;
 	}
 
-	int baseNote() const;
+	bool keyRangeImport() const;
+	bool isKeyMapped(int key) const;
 	int firstKey() const;
 	int lastKey() const;
+	int baseNote() const;
+	float baseFreq() const;
 
 	Piano *pianoModel()
 	{
 		return &m_piano;
 	}
 
+	Microtuner *microtuner()
+	{
+		return &m_microtuner;
+	}
+
 	bool isArpeggioEnabled() const
 	{
 		return m_arpeggio.m_arpEnabledModel.value();
@@ -303,6 +312,8 @@ protected slots:
 
 	Piano m_piano;
 
+	Microtuner m_microtuner;
+
 	std::unique_ptr<BoolModel> m_midiCCEnable;
 	std::unique_ptr<FloatModel> m_midiCCModel[MidiControllerCount];