added octave up and down buttons

Author: quirkylemon

.gitignore

@@ -8,6 +8,8 @@ Builds/VisualStudio2017/
 .vs/
 *.exe
 
+.vscode
+
 JuceLibraryCode/
 Builds/
 assets/

Documentation/KeyboardShortcuts.md

@@ -0,0 +1,2 @@
+X = Octave down\
+C = Octave up

Source/CartManager.cpp

@@ -342,6 +342,7 @@ void CartManager::initialFocus() {
 }
 
 bool CartManager::keyPressed(const KeyPress& key, Component* originatingComponent) {
+    // Keycode 13 is enter.
     if ( key.getKeyCode() == 13 ) {
         File file = cartBrowser->getSelectedFile();
         if ( file.isDirectory() )

Source/PluginEditor.cpp

@@ -37,6 +37,9 @@ DexedAudioProcessorEditor::DexedAudioProcessorEditor (DexedAudioProcessor* owner
       cartManager(this)
 {
     setSize(WINDOW_SIZE_X, (ownerFilter->showKeyboard ? WINDOW_SIZE_Y : WINDOW_SIZE_Y - 94));
+    
+    setWantsKeyboardFocus(true);
+    addKeyListener(this);
 
     processor = ownerFilter;
 
@@ -441,3 +444,14 @@ void DexedAudioProcessorEditor::filesDropped (const StringArray &files, int x, i
         processor->applyKBMMapping( File( fn ) );
     }
 }
+
+bool DexedAudioProcessorEditor::keyPressed(const KeyPress &key, Component *originatingComponent) {
+    if (key.getTextDescription() == "X") {
+        processor->octaveShift -= 1;
+        return true;
+    } else if (key.getTextDescription() == "C") {
+        processor->octaveShift += 1;
+        return true;
+    }
+    return false;
+}

Source/PluginEditor.h

@@ -32,7 +32,7 @@
 /**
 */
 class DexedAudioProcessorEditor  : public AudioProcessorEditor, public ComboBox::Listener, public Timer,
-                                   public FileDragAndDropTarget {
+                                   public FileDragAndDropTarget, public juce::KeyListener {
     MidiKeyboardComponent midiKeyboard;
     OperatorEditor operators[6];
     Colour background;
@@ -62,6 +62,7 @@ class DexedAudioProcessorEditor  : public AudioProcessorEditor, public ComboBox:
 
     virtual bool isInterestedInFileDrag (const StringArray &files) override;
     virtual void filesDropped (const StringArray &files, int x, int y ) override;
+    virtual bool keyPressed (const KeyPress &key, Component *originatingComponent);
 
     static const int WINDOW_SIZE_X = 866;
     static const int WINDOW_SIZE_Y = 674;

Source/PluginProcessor.cpp

@@ -566,18 +566,18 @@ void DexedAudioProcessor::keyup(uint8_t chan, uint8_t pitch, uint8_t velo) {
 int DexedAudioProcessor::tuningTranspositionShift()
 {
     if( synthTuningState->is_standard_tuning() || ! controllers.transpose12AsScale )
-        return data[144] - 24;
+        return data[144] - 24 + octaveShift * 12;
     else
     {
         int d144 = data[144];
         if( d144 % 12 == 0 )
         {
             int oct = (d144 - 24) / 12;
             int res = oct * synthTuningState->scale_length();
-            return res;
+            return res + octaveShift * 12;
         }
         else
-            return data[144] - 24;
+            return data[144] - 24 + octaveShift * 12;
     }
 }
 

Source/PluginProcessor.h

@@ -172,6 +172,8 @@ public :
     std::unique_ptr<CtrlFloat> output;
     std::unique_ptr<Ctrl> tune;
 
+    int octaveShift = 0;
+
     void loadCartridge(Cartridge &cart);
     void setDxValue(int offset, int v);