tkmenu.h

linux系统下的音频通信

    XColor *activeFg;		/* Foreground color for active entry. */
    XColor *indicatorFg;	/* Color for indicators in radio and check
				 * button entries. */
    Pixmap gray;		/* Bitmap for drawing disabled entries in
				 * a stippled fashion.  None means not
				 * allocated yet. */
    GC textGC;			/* GC for drawing text and other features
				 * of menu entries. */
    GC disabledGC;		/* Used to produce disabled effect.  If
				 * disabledFg isn't NULL, this GC is used to
				 * draw text and icons for disabled entries.
				 * Otherwise text and icons are drawn with
				 * normalGC and this GC is used to stipple
				 * background across them. */
    GC activeGC;		/* GC for drawing active entry. */
    GC indicatorGC;		/* For drawing indicators. */
    GC disabledImageGC;		/* Used for drawing disabled images. They
				 * have to be stippled. This is created
				 * when the image is about to be drawn the
				 * first time. */

    /*
     * Information about geometry of menu.
     */
    
    int totalWidth;		/* Width of entire menu */
    int totalHeight;		/* Height of entire menu */
   
    /*
     * Miscellaneous information:
     */

    int tearOff;		/* 1 means this menu can be torn off. On some
    				 * platforms, the user can drag an outline
    				 * of the menu by just dragging outside of
    				 * the menu, and the tearoff is created where
    				 * the mouse is released. On others, an
				 * indicator (such as a dashed stripe) is
				 * drawn, and when the menu is selected, the
				 * tearoff is created. */
    char *title;		/* The title to use when this menu is torn
    				 * off. If this is NULL, a default scheme
    				 * will be used to generate a title for
    				 * tearoff. */
    char *tearOffCommand;	/* If non-NULL, points to a command to
				 * run whenever the menu is torn-off. */
    char *takeFocus;		/* Value of -takefocus option;  not used in
				 * the C code, but used by keyboard traversal
				 * scripts.  Malloc'ed, but may be NULL. */
    Tk_Cursor cursor;		/* Current cursor for window, or None. */
    char *postCommand;		/* Used to detect cycles in cascade hierarchy
    				 * trees when preprocessing postcommands
    				 * on some platforms. See PostMenu for
    				 * more details. */
    int postCommandGeneration;	/* Need to do pre-invocation post command
				 * traversal */
    int menuFlags;		/* Flags for use by X; see below for
				   definition */
    TkMenuEntry *postedCascade;	/* Points to menu entry for cascaded submenu
				 * that is currently posted or NULL if no
				 * submenu posted. */
    struct TkMenu *nextInstancePtr;	
    				/* The next instance of this menu in the
    				 * chain. */
    struct TkMenu *masterMenuPtr;
    				/* A pointer to the original menu for this
    				 * clone chain. Points back to this structure
    				 * if this menu is a master menu. */
    Tk_Window parentTopLevelPtr;/* If this menu is a menubar, this is the
    				 * toplevel that owns the menu. Only applicable
    				 * for menubar clones.
    				 */
    struct TkMenuReferences *menuRefPtr;	
    				/* Each menu is hashed into a table with the
    				 * name of the menu's window as the key.
    				 * The information in this hash table includes
    				 * a pointer to the menu (so that cascades
    				 * can find this menu), a pointer to the
    				 * list of toplevel widgets that have this
    				 * menu as its menubar, and a list of menu
    				 * entries that have this menu specified
    				 * as a cascade. */    
    TkMenuPlatformData platformData;
				/* The data for the specific type of menu.
  				 * Depends on platform and menu type what
  				 * kind of options are in this structure.
  				 */
} TkMenu;

/*
 * When the toplevel configure -menu command is executed, the menu may not
 * exist yet. We need to keep a linked list of windows that reference
 * a particular menu.
 */

typedef struct TkMenuTopLevelList {
    struct TkMenuTopLevelList *nextPtr;
    				/* The next window in the list */
    Tk_Window tkwin;		/* The window that has this menu as its
				 * menubar. */
} TkMenuTopLevelList;

/*
 * The following structure is used to keep track of things which
 * reference a menu. It is created when:
 * - a menu is created.
 * - a cascade entry is added to a menu with a non-null name
 * - the "-menu" configuration option is used on a toplevel widget
 * with a non-null parameter.
 *
 * One of these three fields must be non-NULL, but any of the fields may
 * be NULL. This structure makes it easy to determine whether or not
 * anything like recalculating platform data or geometry is necessary
 * when one of the three actions above is performed.
 */

typedef struct TkMenuReferences {
    struct TkMenu *menuPtr;	/* The menu data structure. This is NULL
    				 * if the menu does not exist. */
    TkMenuTopLevelList *topLevelListPtr;
    				/* First in the list of all toplevels that 
    				 * have this menu as its menubar. NULL if no 
    				 * toplevel widgets have this menu as its
    				 * menubar. */
    TkMenuEntry *parentEntryPtr;/* First in the list of all cascade menu 
    				 * entries that have this menu as their child.
    				 * NULL means no cascade entries. */
    Tcl_HashEntry *hashEntryPtr;/* This is needed because the pathname of the
    				 * window (which is what we hash on) may not
    				 * be around when we are deleting.
    				 */
} TkMenuReferences;

/*
 * Flag bits for menus:
 *
 * REDRAW_PENDING:		Non-zero means a DoWhenIdle handler
 *				has already been queued to redraw
 *				this window.
 * RESIZE_PENDING:		Non-zero means a call to ComputeMenuGeometry
 *				has already been scheduled.
 * MENU_DELETION_PENDING	Non-zero means that we are currently destroying
 *				this menu. This is useful when we are in the 
 *				middle of cleaning this master menu's chain of 
 *				menus up when TkDestroyMenu was called again on
 *				this menu (via a destroy binding or somesuch).
 * MENU_PLATFORM_FLAG1...	Reserved for use by the platform-specific menu
 *				code.
 */

#define REDRAW_PENDING		1
#define RESIZE_PENDING		2
#define MENU_DELETION_PENDING	4
#define MENU_PLATFORM_FLAG1	(1 << 30)
#define MENU_PLATFORM_FLAG2	(1 << 29)
#define MENU_PLATFORM_FLAG3	(1 << 28)

/*
 * Each menu created by the user is a MASTER_MENU. When a menu is torn off,
 * a TEAROFF_MENU instance is created. When a menu is assigned to a toplevel
 * as a menu bar, a MENUBAR instance is created. All instances have the same
 * configuration information. If the master instance is deleted, all instances
 * are deleted. If one of the other instances is deleted, only that instance
 * is deleted.
 */
 
#define UNKNOWN_TYPE		-1
#define MASTER_MENU 		0
#define TEAROFF_MENU 		1
#define MENUBAR 		2

/*
 * Various geometry definitions:
 */

#define CASCADE_ARROW_HEIGHT 10
#define CASCADE_ARROW_WIDTH 8
#define DECORATION_BORDER_WIDTH 2

/*
 * Configuration specs. Needed for platform-specific default initializations.
 */

EXTERN Tk_ConfigSpec tkMenuEntryConfigSpecs[];
EXTERN Tk_ConfigSpec tkMenuConfigSpecs[];

/*
 * Menu-related procedures that are shared among Tk modules but not exported
 * to the outside world:
 */

EXTERN int		TkActivateMenuEntry _ANSI_ARGS_((TkMenu *menuPtr,
			    int index));
EXTERN void		TkBindMenu _ANSI_ARGS_((
			    Tk_Window tkwin, TkMenu *menuPtr));
EXTERN TkMenuReferences *
			TkCreateMenuReferences _ANSI_ARGS_((Tcl_Interp *interp,
			    char *pathName));
EXTERN void		TkDestroyMenu _ANSI_ARGS_((TkMenu *menuPtr));
EXTERN void             TkEventuallyRecomputeMenu _ANSI_ARGS_((TkMenu *menuPtr));
EXTERN void		TkEventuallyRedrawMenu _ANSI_ARGS_((
    			    TkMenu *menuPtr, TkMenuEntry *mePtr));
EXTERN TkMenuReferences *
			TkFindMenuReferences _ANSI_ARGS_((Tcl_Interp *interp,
			    char *pathName));
EXTERN void		TkFreeMenuReferences _ANSI_ARGS_((
			    TkMenuReferences *menuRefPtr));
EXTERN Tcl_HashTable *	TkGetMenuHashTable _ANSI_ARGS_((Tcl_Interp *interp));
EXTERN int		TkGetMenuIndex _ANSI_ARGS_((Tcl_Interp *interp,
			    TkMenu *menuPtr, char *string, int lastOK,
			    int *indexPtr));
EXTERN void		TkMenuInitializeDrawingFields _ANSI_ARGS_((TkMenu *menuPtr));
EXTERN void		TkMenuInitializeEntryDrawingFields _ANSI_ARGS_((
			    TkMenuEntry *mePtr));
EXTERN int		TkInvokeMenu _ANSI_ARGS_((Tcl_Interp *interp,
			    TkMenu *menuPtr, int index));
EXTERN void		TkMenuConfigureDrawOptions _ANSI_ARGS_((
			    TkMenu *menuPtr));
EXTERN int		TkMenuConfigureEntryDrawOptions _ANSI_ARGS_((
			    TkMenuEntry *mePtr, int index));
EXTERN void		TkMenuFreeDrawOptions _ANSI_ARGS_((TkMenu *menuPtr));
EXTERN void		TkMenuEntryFreeDrawOptions _ANSI_ARGS_((
			    TkMenuEntry *mePtr));
EXTERN void		TkMenuEventProc _ANSI_ARGS_((ClientData clientData,
    			    XEvent *eventPtr));
EXTERN void		TkMenuImageProc _ANSI_ARGS_((
    			    ClientData clientData, int x, int y, int width,
			    int height, int imgWidth, int imgHeight));
EXTERN void		TkMenuInit _ANSI_ARGS_((void));
EXTERN void		TkMenuSelectImageProc _ANSI_ARGS_
			    ((ClientData clientData, int x, int y,
			    int width, int height, int imgWidth,
			    int imgHeight));
EXTERN char *		TkNewMenuName _ANSI_ARGS_((Tcl_Interp *interp, 
			    char *parentName, TkMenu *menuPtr));
EXTERN int		TkPostCommand _ANSI_ARGS_((TkMenu *menuPtr));
EXTERN int		TkPostSubmenu _ANSI_ARGS_((Tcl_Interp *interp,
			    TkMenu *menuPtr, TkMenuEntry *mePtr));
EXTERN int		TkPostTearoffMenu _ANSI_ARGS_((Tcl_Interp *interp,
			    TkMenu *menuPtr, int x, int y));
EXTERN int		TkPreprocessMenu _ANSI_ARGS_((TkMenu *menuPtr));
EXTERN void             TkRecomputeMenu _ANSI_ARGS_((TkMenu *menuPtr));

/*
 * These routines are the platform-dependent routines called by the
 * common code.
 */

EXTERN void		TkpComputeMenubarGeometry _ANSI_ARGS_((TkMenu *menuPtr));
EXTERN void		TkpComputeStandardMenuGeometry _ANSI_ARGS_
			    ((TkMenu *menuPtr));
EXTERN int		TkpConfigureMenuEntry
                            _ANSI_ARGS_((TkMenuEntry *mePtr));
EXTERN void		TkpDestroyMenu _ANSI_ARGS_((TkMenu *menuPtr));
EXTERN void		TkpDestroyMenuEntry
			    _ANSI_ARGS_((TkMenuEntry *mEntryPtr));
EXTERN void		TkpDrawMenuEntry _ANSI_ARGS_((TkMenuEntry *mePtr,
			    Drawable d, Tk_Font tkfont, 
			    CONST Tk_FontMetrics *menuMetricsPtr, int x,
			    int y, int width, int height, int strictMotif,
			    int drawArrow));
EXTERN void		TkpMenuInit _ANSI_ARGS_((void));
EXTERN int		TkpMenuNewEntry _ANSI_ARGS_((TkMenuEntry *mePtr));
EXTERN int		TkpNewMenu _ANSI_ARGS_((TkMenu *menuPtr));
EXTERN int		TkpPostMenu _ANSI_ARGS_((Tcl_Interp *interp,
			    TkMenu *menuPtr, int x, int y));
EXTERN void		TkpSetWindowMenuBar _ANSI_ARGS_((Tk_Window tkwin,
			    TkMenu *menuPtr));

# undef TCL_STORAGE_CLASS
# define TCL_STORAGE_CLASS DLLIMPORT

#endif /* _TKMENU */