Classes | Public Member Functions | Static Public Member Functions

MenuBarModel Class Reference

A class for controlling MenuBar components. More...

Inherits AsyncUpdater, and ApplicationCommandManagerListener.

List of all members.

Classes

class  Listener
 A class to receive callbacks when a MenuBarModel changes. More...

Public Member Functions

 MenuBarModel () noexcept
virtual ~MenuBarModel ()
 Destructor.
void menuItemsChanged ()
 Call this when some of your menu items have changed.
void setApplicationCommandManagerToWatch (ApplicationCommandManager *manager) noexcept
 Tells the menu bar to listen to the specified command manager, and to update itself when the commands change.
void addListener (Listener *listenerToAdd) noexcept
 Registers a listener for callbacks when the menu items in this model change.
void removeListener (Listener *listenerToRemove) noexcept
 Removes a listener.
virtual const StringArray getMenuBarNames ()=0
 This method must return a list of the names of the menus.
virtual const PopupMenu getMenuForIndex (int topLevelMenuIndex, const String &menuName)=0
 This should return the popup menu to display for a given top-level menu.
virtual void menuItemSelected (int menuItemID, int topLevelMenuIndex)=0
 This is called when a menu item has been clicked on.
void applicationCommandInvoked (const ApplicationCommandTarget::InvocationInfo &info)
 Called when an app command is about to be invoked.
void applicationCommandListChanged ()
 Called when commands are registered or deregistered from the command manager, or when commands are made active or inactive.
void handleAsyncUpdate ()
 Called back to do whatever your class needs to do.

Static Public Member Functions

static void setMacMainMenu (MenuBarModel *newMenuBarModel, const PopupMenu *extraAppleMenuItems=nullptr)
 MAC ONLY - Sets the model that is currently being shown as the main menu bar at the top of the screen on the Mac.
static MenuBarModelgetMacMainMenu ()
 MAC ONLY - Returns the menu model that is currently being shown as the main menu bar.

Detailed Description

A class for controlling MenuBar components.

This class is used to tell a MenuBar what menus to show, and to respond to a menu being selected.

See also:
MenuBarModel::Listener, MenuBarComponent, PopupMenu

Constructor & Destructor Documentation

MenuBarModel::MenuBarModel (  )
virtual MenuBarModel::~MenuBarModel (  ) [virtual]

Destructor.


Member Function Documentation

void MenuBarModel::menuItemsChanged (  )

Call this when some of your menu items have changed.

This method will cause a callback to any MenuBarListener objects that are registered with this model.

If this model is displaying items from an ApplicationCommandManager, you can use the setApplicationCommandManagerToWatch() method to cause change messages to be sent automatically when the ApplicationCommandManager is changed.

See also:
addListener, removeListener, MenuBarListener
void MenuBarModel::setApplicationCommandManagerToWatch ( ApplicationCommandManager manager )

Tells the menu bar to listen to the specified command manager, and to update itself when the commands change.

This will also allow it to flash a menu name when a command from that menu is invoked using a keystroke.

void MenuBarModel::addListener ( Listener listenerToAdd )

Registers a listener for callbacks when the menu items in this model change.

The listener object will get callbacks when this object's menuItemsChanged() method is called.

See also:
removeListener
void MenuBarModel::removeListener ( Listener listenerToRemove )

Removes a listener.

See also:
addListener
virtual const StringArray MenuBarModel::getMenuBarNames (  ) [pure virtual]

This method must return a list of the names of the menus.

virtual const PopupMenu MenuBarModel::getMenuForIndex ( int  topLevelMenuIndex,
const String menuName 
) [pure virtual]

This should return the popup menu to display for a given top-level menu.

Parameters:
topLevelMenuIndexthe index of the top-level menu to show
menuNamethe name of the top-level menu item to show
virtual void MenuBarModel::menuItemSelected ( int  menuItemID,
int  topLevelMenuIndex 
) [pure virtual]

This is called when a menu item has been clicked on.

Parameters:
menuItemIDthe item ID of the PopupMenu item that was selected
topLevelMenuIndexthe index of the top-level menu from which the item was chosen (just in case you've used duplicate ID numbers on more than one of the popup menus)
static void MenuBarModel::setMacMainMenu ( MenuBarModel newMenuBarModel,
const PopupMenu extraAppleMenuItems = nullptr 
) [static]

MAC ONLY - Sets the model that is currently being shown as the main menu bar at the top of the screen on the Mac.

You can pass 0 to stop the current model being displayed. Be careful not to delete a model while it is being used.

An optional extra menu can be specified, containing items to add to the top of the apple menu. (Confusingly, the 'apple' menu isn't the one with a picture of an apple, it's the one next to it, with your application's name at the top and the services menu etc on it). When one of these items is selected, the menu bar model will be used to invoke it, and in the menuItemSelected() callback the topLevelMenuIndex parameter will be -1. If you pass in an extraAppleMenuItems object then newMenuBarModel must be non-null.

static MenuBarModel* MenuBarModel::getMacMainMenu (  ) [static]

MAC ONLY - Returns the menu model that is currently being shown as the main menu bar.

void MenuBarModel::applicationCommandInvoked ( const ApplicationCommandTarget::InvocationInfo info ) [virtual]

Called when an app command is about to be invoked.

Implements ApplicationCommandManagerListener.

void MenuBarModel::applicationCommandListChanged (  ) [virtual]

Called when commands are registered or deregistered from the command manager, or when commands are made active or inactive.

Note that if you're using this to watch for changes to whether a command is disabled, you'll need to make sure that ApplicationCommandManager::commandStatusChanged() is called whenever the status of your command might have changed.

Implements ApplicationCommandManagerListener.

void MenuBarModel::handleAsyncUpdate (  ) [virtual]

Called back to do whatever your class needs to do.

This method is called by the message thread at the next convenient time after the triggerAsyncUpdate() method has been called.

Implements AsyncUpdater.


The documentation for this class was generated from the following file:
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