juce_MenuBarComponent.h

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 /*
  ==============================================================================
 
   This file is part of the JUCE library.
   Copyright (c) 2022 - Raw Material Software Limited
 
   JUCE is an open source library subject to commercial or open-source
   licensing.
 
   By using JUCE, you agree to the terms of both the JUCE 7 End-User License
   Agreement and JUCE Privacy Policy.
 
   End User License Agreement: www.juce.com/juce-7-licence
   Privacy Policy: www.juce.com/juce-privacy-policy
 
   Or: You may also use this code under the terms of the GPL v3 (see
   www.gnu.org/licenses).
 
   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
   DISCLAIMED.
 
  ==============================================================================
*/
 
namespace juce
{
 
//==============================================================================
class JUCE_API  MenuBarComponent  : public Component,
                                    private MenuBarModel::Listener,
                                    private Timer
{
public:
    //==============================================================================
    MenuBarComponent (MenuBarModel* model = nullptr);
 
    ~MenuBarComponent() override;
 
    //==============================================================================
    void setModel (MenuBarModel* newModel);
 
    MenuBarModel* getModel() const noexcept;
 
    //==============================================================================
    void showMenu (int menuIndex);
 
    //==============================================================================
    void paint (Graphics&) override;
    void resized() override;
    void mouseEnter (const MouseEvent&) override;
    void mouseExit (const MouseEvent&) override;
    void mouseDown (const MouseEvent&) override;
    void mouseDrag (const MouseEvent&) override;
    void mouseUp (const MouseEvent&) override;
    void mouseMove (const MouseEvent&) override;
    void handleCommandMessage (int commandId) override;
    bool keyPressed (const KeyPress&) override;
    void menuBarItemsChanged (MenuBarModel*) override;
    void menuCommandInvoked (MenuBarModel*, const ApplicationCommandTarget::InvocationInfo&) override;
    std::unique_ptr<AccessibilityHandler> createAccessibilityHandler() override;
 
private:
    //==============================================================================
    class AccessibleItemComponent;
 
    //==============================================================================
    void timerCallback() override;
 
    int getItemAt (Point<int>);
    void setItemUnderMouse (int);
    void setOpenItem (int);
    void updateItemUnderMouse (Point<int>);
    void repaintMenuItem (int);
    void menuDismissed (int, int);
 
    void updateItemComponents (const StringArray&);
    int indexOfItemComponent (AccessibleItemComponent*) const;
 
    //==============================================================================
    MenuBarModel* model = nullptr;
    std::vector<std::unique_ptr<AccessibleItemComponent>> itemComponents;
 
    Point<int> lastMousePos;
    int itemUnderMouse = -1, currentPopupIndex = -1, topLevelIndexDismissed = 0;
    int numActiveMenus = 0;
 
    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (MenuBarComponent)
};
 
} // namespace juce