KwidgetGUI_TriggerButton.cpp

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namespace krotos
{
    //======================================= KwidgetGUI_TriggerButton
    //========================================================================
    KwidgetGUI_TriggerButton::KwidgetGUI_TriggerButton(Kwidget& owner) : KwidgetGUI(owner)
    {
        using Params = Kwidget_TriggerButton::Parameters;
 
        addMouseListener(this, true);
 
        setRenderStyle(RenderStyle::borderless);
 
        // Add the main triggerButton component
        addAndMakeVisible(m_onClickButton);
 
        // Connect triggerButton to the onClick Param
        auto& onClickParam = *owner.getParameter(Params::OnClick)->getAttachedParameter();
        m_triggerButtonAttachment.reset(new TriggerButtonParameterAttachment(onClickParam, m_onClickButton));
 
        auto* midiModeParam = owner.getCustomParameter(Parameters::MIDIMode);
 
        midiModeParam->valueChanged = [&](const var&) {
            m_onClickButton.setButtonText(owner.getCustomParameter(Parameters::MIDIMode)->getValue().toString());
        };
 
        // Initialise button text
        m_onClickButton.setButtonText(midiModeParam->getValue().toString());
 
        // Connect the label to the customParam
        m_editableLabel = std::make_unique<AttachedLabel>(owner.getKwidgetLabel());
        m_editableLabel->getAttachment() =
                createCustomParameterAttachment(Parameters::Label, m_editableLabel->getLabel());
        m_editableLabel->getLabel().setColour(juce::Label::textColourId, juce::Colours::lightgrey);
        m_editableLabel->getLabel().setJustificationType(Justification::centredBottom);
        addAndMakeVisible(m_editableLabel.get());
 
        addAndMakeVisible(m_contextMenu);
        m_contextMenu.onClick = [&] { showContextMenu(); };
    }
 
    KwidgetGUI_TriggerButton::~KwidgetGUI_TriggerButton()
    {
        if (auto* midiModeParam = getOwner().getCustomParameter(Parameters::MIDIMode))
        {
            midiModeParam->valueChanged = nullptr;
        }
    }
 
    void KwidgetGUI_TriggerButton::showContextMenu()
    {
        PopupMenu menu;
        const var mode = getOwner().getCustomParameter(Parameters::MIDIMode)->getValue();
        const auto selectedMode = Kwidget_CoreEngine::MIDIModeNames.indexOf(mode.toString());
 
        // Populate menu with mode names - skipping All notes
        for (int i = static_cast<int>(MIDIMode::All) + 1; i < static_cast<int>(MIDIMode::NUM_MODES); ++i)
        {
            menu.addItem(i, Kwidget_CoreEngine::MIDIModeNames[i], true, i == selectedMode);
        }
 
        // Action callback from the menu to set the mode
        std::function<void(int)> menuCallback = [&](int itemResultID) {
            if (itemResultID > 0)
            {
                // No need to correct for the menu offset since trigger buttons don't have "All notes" enum
                getOwner()
                        .getCustomParameter(Parameters::MIDIMode)
                        ->setValue(Kwidget_CoreEngine::MIDIModeNames[itemResultID], true);
            }
        };
 
        menu.showMenuAsync(PopupMenu::Options{}
                                   .withTargetComponent(m_contextMenu)
                                   .withMinimumNumColumns(1)
                                   .withStandardItemHeight(20),
                           menuCallback);
    }
 
    void KwidgetGUI_TriggerButton::paint(Graphics& g) { KwidgetGUI::paint(g); }
 
    void KwidgetGUI_TriggerButton::resized()
    {
        KwidgetGUI::resized();
 
        auto kwidgetBounds = getLocalBounds();
 
        // TriggerButton Button bounds
        auto triggerButtonBounds = kwidgetBounds.removeFromTop(static_cast<int>(2.0f * getHeight() / 3.0f));
        const int contextMenuWidth{20};
        auto contextButtonRect = triggerButtonBounds.removeFromRight(contextMenuWidth);
        m_onClickButton.setBounds(triggerButtonBounds);
 
        // Label Font
        auto labelFont = Font().withPointHeight(static_cast<float>(constants.FontSize));
        labelFont.setExtraKerningFactor(constants.KerningFactor);
        int labelHeight = static_cast<int>(constants.LabelPadding * 0.5f);
        int labelWidth = static_cast<int>(triggerButtonBounds.getWidth());
        // Label Bounds
        auto labelBounds = Rectangle<int>(static_cast<int>(triggerButtonBounds.getWidth()) - labelWidth,
                                          static_cast<int>(triggerButtonBounds.getBottom()), labelWidth, labelHeight);
        m_editableLabel->setBounds(labelBounds);
 
        m_contextMenu.setVisible(!m_performMode);
        m_contextMenu.setBounds(contextButtonRect.removeFromTop(contextMenuWidth));
 
        if (m_performMode == true)
        {
            m_editableLabel->getLabel().setFont(labelFont);
            m_editableLabel->getLabel().setEditable(false);
        }
        else // edit Mode
        {
            m_editableLabel->getLabel().setFont(labelFont);
            m_editableLabel->getLabel().setEditable(false, false, true, false);
        }
    }
} // namespace krotos