Initializing constructor

[wimvandenborre]

Hey everyone,

Ik keep bumping my head agains this, i have a knowledge gap on initializing contsructors, if anyone knows a good resource or could explain it would be highly appreciated!

I'm following a tutorial where they initialize an unlockform:

 MainContentComponent()
        : unlockForm (marketplaceStatus)
    {

Now my own code is a bit more complicated and I don't know how to initialize it in MyAppAudiProcessorEditor..

 MyAppAudioProcessorEditor::MyAppAudioProcessorEditor (MyAppAudioProcessor& p )
    : AudioProcessorEditor (&p), audioProcessor (p)
{

[keskiverto]

You have to show (at least) from definition of MyAppAudioProcessorEditor what members and bases it has, and from definitions of those bases (and members) what argument types their constructors accept.

[seeplus]

I suspect the AudioProcessorEditor(&p) should be AudioProcessorEditor(p) - although without knowing the type of AudioProcessorEditor...

In this context, & means address of - not reference. In the context of (MyAppAudioProcessor& p) then & does mean ref. I know it can be confusing.

[wimvandenborre]

ok sorry, here is more info :)

class MayAppAudioProcessorEditor  : public juce::AudioProcessorEditor,
public juce::Slider::Listener, public juce::Button::Listener, public juce::ComboBox::Listener, private juce::Timer
{
public:
    MyAppAudioProcessorEditor (MyAppAudioProcessor&);
    ~MyAppAudioProcessorEditor() override;

    void paint (juce::Graphics&) override;
    void resized() override;
    void sliderValueChanged(juce::Slider *slider) override;
    void buttonClicked(juce::Button *button) override;
    void comboBoxChanged(juce::ComboBox *comboBox) override;
    
private:
   
    MyAppAudioProcessor& audioProcessor;

    ModernDial kitDial, trackDial, velocityDial, minvelocityDial, afterTouchDial, voiceDial, voiceStartDial, midiChannelSelectDial;

    juce::Label kitLabel, trackLabel, noteOnButtonLabel, velocityLabel, minvelocityLabel, afterTouchLabel, voiceDialLabel, voiceStartDialLabel, midiChannelSelectDialLabel;
    juce::ToggleButton noteOnButton;
    juce::ComboBox modeMenu, chordMenu, scaleMenu, rootNoteMenu, scaleModeMenu;
    

    struct Rect_Sequencer : public juce::Component
    {
        Rect_Sequencer() {setPaintingIsUnclipped(true);}
        std::vector<std::unique_ptr<juce::ToggleButton>> channelActiveToggles;
        
        
        void paint (juce::Graphics& g) override
        {
            g.setColour(juce::Colours::black);
            g.fillRect(getLocalBounds());

        }
    };
    

    
    
    Rect_Sequencer rect_Sequencer;
    juce::TooltipWindow tooltipWindow;
    CustomLookAndFeel customLookAndFeel;
    
    
    void timerCallback() override
    {
        if (! isUnlocked && marketplaceStatus.isUnlocked())
        {
            isUnlocked = true;
            unlockApp();
        }
    }
    
    void showForm()
    {
        unlockForm.setVisible (true);
    }
    
    void unlockApp()
    {
        secretButton.setEnabled (true);
        unlockButton.setEnabled (false);
        
        unlockLabel.setText ("Status: Unlocked", juce::dontSendNotification);
        unlockLabel.setColour (juce::Label::textColourId, juce::Colours::green);
    }
    
    void checkFeature()
    {
        if (marketplaceStatus.isUnlocked())
            DBG ("App unlocked!");
        else
            DBG ("Beware of hackers!");
    }
    
    juce::Label      unlockLabel  { {}, "Status: Locked" };
    juce::TextButton unlockButton { "Unlock" },
    secretButton { "Super Secret Feature" };
    
    TutorialMarketplaceStatus marketplaceStatus;
    TutorialUnlockForm unlockForm;
    
    bool isUnlocked = false;
    

    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (MyAppAudioProcessorEditor)
};

[Peter87]

MyAppAudioProcessorEditor::MyAppAudioProcessorEditor(MyAppAudioProcessor& p)
:	AudioProcessorEditor(p), // If I read the docs correctly you could instead pass &p here (I assume the result is the same).
	audioProcessor(p)
{
}

Note that you can write juce:: in front of AudioProcessorEditor if you want.

Edit: Hmm, this ended up essentially the same as your original code. Is it causing problems or are you just unsure how it works?

[wimvandenborre]

well, now i have to pass this aditional unlockform: here in the example its in a maincontentcomponent: MainContentComponent()
: unlockForm (marketplaceStatus)
{

As you indeed noticed i'm unsure how it works, i'm a beginner and understand the basics but this is a bit too much for me, i'm trying to incorporate this tutorial in my own code:
https://docs.juce.com/master/tutorial_online_unlock_status.html#tutorial_online_unlock_status_demo_project