115 lines
2.4 KiB
C++
115 lines
2.4 KiB
C++
// menubar.hxx - XML-configured menu bar.
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#ifndef __MENUBAR_HXX
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#define __MENUBAR_HXX 1
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#ifndef __cplusplus
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# error This library requires C++
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#endif
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#include <simgear/compiler.h> // for SG_USING_STD
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#include <plib/pu.h>
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#include <map>
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SG_USING_STD(map);
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#include <vector>
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SG_USING_STD(vector);
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class puMenuBar;
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class puObject;
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class FGBinding;
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/**
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* XML-configured PUI menu bar.
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*
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* This class creates a menu bar from a tree of XML properties. These
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* properties are not part of the main FlightGear property tree, but
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* are read from a separate file ($FG_ROOT/gui/menubar.xml).
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*
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* WARNING: because PUI provides no easy way to attach user data to a
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* menu item, all menu item strings must be unique; otherwise, this
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* class will always use the first binding with any given name.
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*/
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class FGMenuBar
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{
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public:
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/**
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* Constructor.
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*/
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FGMenuBar ();
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/**
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* Destructor.
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*/
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virtual ~FGMenuBar ();
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/**
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* Initialize the menu bar from $FG_ROOT/gui/menubar.xml
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*/
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virtual void init ();
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/**
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* Make the menu bar visible.
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*/
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virtual void show ();
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/**
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* Make the menu bar invisible.
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*/
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virtual void hide ();
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/**
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* Test whether the menu bar is visible.
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*/
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virtual bool isVisible () const;
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/**
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* IGNORE THIS METHOD!!!
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*
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* This is necessary only because plib does not provide any easy
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* way to attach user data to a menu item. FlightGear should not
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* have to know about PUI internals, but this method allows the
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* callback to pass the menu item one-shot on to the current menu.
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*/
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virtual void fireItem (puObject * item);
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private:
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// Make a single menu.
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void make_menu (SGPropertyNode * node);
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// Make the top-level menubar.
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void make_menubar ();
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// Is the menu visible?
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bool _visible;
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// The top-level menubar itself.
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puMenuBar * _menuBar;
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// A map of bindings for the menubar.
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map<string,vector<FGBinding *> > _bindings;
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// These are hoops that we have to jump through because PUI doesn't
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// do memory management for lists. We have to allocate the arrays,
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// hang onto pointers, and then delete them when the menubar is
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// freed.
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char ** make_char_array (int size);
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puCallback * make_callback_array (int size);
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vector<char **> _char_arrays;
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vector<puCallback *> _callback_arrays;
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};
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#endif // __MENUBAR_HXX
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