/*
* Changes the specified menu item in the current menu into a sub-menu trigger.
*/
void FGAPIENTRY glutChangeToSubMenu( int item, const char* label,
int subMenuID )
{
SFG_Menu* subMenu = fgMenuByID( subMenuID );
SFG_MenuEntry* menuEntry = NULL;
freeglut_assert_ready;
freeglut_return_if_fail( fgStructure.Menu );
freeglut_return_if_fail( subMenu );
/*
* Get n-th menu entry in the current menu, starting from one:
*/
menuEntry = fghFindMenuEntry( fgStructure.Menu, item );
freeglut_return_if_fail( menuEntry );
/*
* We want it to become a sub menu entry, so:
*/
if( menuEntry->Text )
free( menuEntry->Text );
menuEntry->Text = strdup( label );
menuEntry->SubMenu = subMenu;
menuEntry->ID = -1;
fghCalculateMenuBoxSize( );
}
/*
* Changes the specified menu item in the current menu into a sub-menu trigger.
*/
void FGAPIENTRY glutChangeToSubMenu( int item, const char* label,
int subMenuID )
{
SFG_Menu* subMenu;
SFG_MenuEntry* menuEntry;
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutChangeToSubMenu" );
freeglut_return_if_fail( fgStructure.CurrentMenu );
if (fgGetActiveMenu())
fgError("Menu manipulation not allowed while menus in use.");
/* Get handle to sub menu */
subMenu = fgMenuByID( subMenuID );
menuEntry = NULL;
freeglut_return_if_fail( subMenu );
/* Get n-th menu entry in the current menu, starting from one: */
menuEntry = fghFindMenuEntry( fgStructure.CurrentMenu, item );
freeglut_return_if_fail( menuEntry );
/* We want it to become a sub menu entry, so: */
if( menuEntry->Text )
free( menuEntry->Text );
menuEntry->Text = strdup( label );
menuEntry->SubMenu = subMenu;
menuEntry->ID = -1;
fghCalculateMenuBoxSize( );
}
/*
* Sets the current menu given its menu ID
*/
void FGAPIENTRY glutSetMenu( int menuID )
{
SFG_Menu* menu = fgMenuByID( menuID );
freeglut_assert_ready;
freeglut_return_if_fail( menu );
fgStructure.Menu = menu;
}
/*
* Sets the current menu given its menu ID
*/
void FGAPIENTRY glutSetMenu( int menuID )
{
SFG_Menu* menu;
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetMenu" );
menu = fgMenuByID( menuID );
freeglut_return_if_fail( menu );
fgStructure.CurrentMenu = menu;
}
/*
* Destroys a menu object, removing all references to it
*/
void FGAPIENTRY glutDestroyMenu( int menuID )
{
SFG_Menu* menu = fgMenuByID( menuID );
freeglut_assert_ready;
freeglut_return_if_fail( menu );
/*
* The menu object destruction code resides in freeglut_structure.c
*/
fgDestroyMenu( menu );
}
/*
* Destroys a menu object, removing all references to it
*/
void FGAPIENTRY glutDestroyMenu( int menuID )
{
SFG_Menu* menu;
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutDestroyMenu" );
menu = fgMenuByID( menuID );
freeglut_return_if_fail( menu );
/* The menu object destruction code resides in freeglut_structure.c */
fgDestroyMenu( menu );
}
/*
* Destroys a menu object, removing all references to it
*/
void FGAPIENTRY glutDestroyMenu( int menuID )
{
SFG_Menu* menu;
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutDestroyMenu" );
menu = fgMenuByID( menuID );
freeglut_return_if_fail( menu );
if (fgState.ActiveMenus)
fgError("Menu manipulation not allowed while menus in use.");
/* The menu object destruction code resides in freeglut_structure.c */
fgDestroyMenu( menu );
}
/*
* Add a sub menu to the bottom of the current menu
*/
void FGAPIENTRY glutAddSubMenu( const char *label, int subMenuID )
{
SFG_MenuEntry *menuEntry;
SFG_Menu *subMenu;
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutAddSubMenu" );
menuEntry = ( SFG_MenuEntry * )calloc( sizeof( SFG_MenuEntry ), 1 );
subMenu = fgMenuByID( subMenuID );
freeglut_return_if_fail( fgStructure.CurrentMenu );
freeglut_return_if_fail( subMenu );
menuEntry->Text = strdup( label );
menuEntry->SubMenu = subMenu;
menuEntry->ID = -1;
fgListAppend( &fgStructure.CurrentMenu->Entries, &menuEntry->Node );
fghCalculateMenuBoxSize( );
}
/*
* Changes the current menu's font
*/
void FGAPIENTRY glutSetMenuFont( int menuID, void* fontID )
{
SFG_Font* font;
SFG_Menu* menu;
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetMenuFont" );
menu = fgMenuByID( menuID );
freeglut_return_if_fail( menu );
if (fgState.ActiveMenus)
fgError("Menu manipulation not allowed while menus in use.");
font = fghFontByID( fontID );
if (!font)
{
fgWarning("glutChangeMenuFont: bitmap font 0x%08x not found. Make sure you're not passing a stroke font. Ignoring...\n",fontID);
return;
}
fgStructure.CurrentMenu->Font = fontID;
fghCalculateMenuBoxSize( );
}
/*
* Add a sub menu to the bottom of the current menu
*/
void FGAPIENTRY glutAddSubMenu( const char *label, int subMenuID )
{
SFG_MenuEntry *menuEntry =
( SFG_MenuEntry * )calloc( sizeof( SFG_MenuEntry ), 1 );
SFG_Menu *subMenu = fgMenuByID( subMenuID );
freeglut_assert_ready;
freeglut_return_if_fail( fgStructure.Menu );
freeglut_return_if_fail( subMenu );
menuEntry->Text = strdup( label );
menuEntry->SubMenu = subMenu;
menuEntry->ID = -1;
/*
* Make the submenu's parent window be the menu's parent window
*/
fghSetSubmenuParentWindow( fgStructure.Menu->ParentWindow, subMenu );
fgListAppend( &fgStructure.Menu->Entries, &menuEntry->Node );
fghCalculateMenuBoxSize( );
}
