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authorstanton <stanton>1998-09-30 02:19:04 (GMT)
committerstanton <stanton>1998-09-30 02:19:04 (GMT)
commitda9d3d17d12952676d1c5a7a8424221f708d4a0e (patch)
tree2ab332f7ff062a2df7010439c8d332e4f71ade6d /generic/tkMenu.h
parent139cae1fba039b0ff1c8d5e8f563903d2fd52c72 (diff)
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Merged 8.0.3 changes into 8.1
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diff --git a/generic/tkMenu.h b/generic/tkMenu.h
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-/*
- * tkMenu.h --
- *
- * Declarations shared among all of the files that implement menu widgets.
- *
- * Copyright (c) 1996-1997 by Sun Microsystems, Inc.
- *
- * See the file "license.terms" for information on usage and redistribution
- * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- *
- * RCS: @(#) $Id: tkMenu.h,v 1.4 1998/09/14 18:23:14 stanton Exp $
- */
-
-#ifndef _TKMENU
-#define _TKMENU
-
-#ifndef _TK
-#include "tk.h"
-#endif
-
-#ifndef _TKINT
-#include "tkInt.h"
-#endif
-
-#ifndef _DEFAULT
-#include "default.h"
-#endif
-
-#ifdef BUILD_tk
-# undef TCL_STORAGE_CLASS
-# define TCL_STORAGE_CLASS DLLEXPORT
-#endif
-
-/*
- * Dummy types used by the platform menu code.
- */
-
-typedef struct TkMenuPlatformData_ *TkMenuPlatformData;
-typedef struct TkMenuPlatformEntryData_ *TkMenuPlatformEntryData;
-
-/*
- * One of the following data structures is kept for each entry of each
- * menu managed by this file:
- */
-
-typedef struct TkMenuEntry {
- int type; /* Type of menu entry; see below for
- * valid types. */
- struct TkMenu *menuPtr; /* Menu with which this entry is associated. */
- char *label; /* Main text label displayed in entry (NULL
- * if no label). Malloc'ed. */
- int labelLength; /* Number of non-NULL characters in label. */
- Tk_Uid state; /* State of button for display purposes:
- * normal, active, or disabled. */
- int underline; /* Index of character to underline. */
- Pixmap bitmap; /* Bitmap to display in menu entry, or None.
- * If not None then label is ignored. */
- char *imageString; /* Name of image to display (malloc'ed), or
- * NULL. If non-NULL, bitmap, text, and
- * textVarName are ignored. */
- Tk_Image image; /* Image to display in menu entry, or NULL if
- * none. */
- char *selectImageString; /* Name of image to display when selected
- * (malloc'ed), or NULL. */
- Tk_Image selectImage; /* Image to display in entry when selected,
- * or NULL if none. Ignored if image is
- * NULL. */
- char *accel; /* Accelerator string displayed at right
- * of menu entry. NULL means no such
- * accelerator. Malloc'ed. */
- int accelLength; /* Number of non-NULL characters in
- * accelerator. */
- int indicatorOn; /* True means draw indicator, false means
- * don't draw it. */
- /*
- * Display attributes
- */
-
- Tk_3DBorder border; /* Structure used to draw background for
- * entry. NULL means use overall border
- * for menu. */
- XColor *fg; /* Foreground color to use for entry. NULL
- * means use foreground color from menu. */
- Tk_3DBorder activeBorder; /* Used to draw background and border when
- * element is active. NULL means use
- * activeBorder from menu. */
- XColor *activeFg; /* Foreground color to use when entry is
- * active. NULL means use active foreground
- * from menu. */
- XColor *indicatorFg; /* Color for indicators in radio and check
- * button entries. NULL means use indicatorFg
- * GC from menu. */
- Tk_Font tkfont; /* Text font for menu entries. NULL means
- * use overall font for menu. */
- int columnBreak; /* If this is 0, this item appears below
- * the item in front of it. If this is
- * 1, this item starts a new column. */
- int hideMargin; /* If this is 0, then the item has enough
- * margin to accomodate a standard check
- * mark and a default right margin. If this
- * is 1, then the item has no such margins.
- * and checkbuttons and radiobuttons with
- * this set will have a rectangle drawn
- * in the indicator around the item if
- * the item is checked.
- * This is useful palette menus.*/
- int indicatorSpace; /* The width of the indicator space for this
- * entry.
- */
- int labelWidth; /* Number of pixels to allow for displaying
- * labels in menu entries. */
-
- /*
- * Information used to implement this entry's action:
- */
-
- char *command; /* Command to invoke when entry is invoked.
- * Malloc'ed. */
- char *name; /* Name of variable (for check buttons and
- * radio buttons) or menu (for cascade
- * entries). Malloc'ed.*/
- char *onValue; /* Value to store in variable when selected
- * (only for radio and check buttons).
- * Malloc'ed. */
- char *offValue; /* Value to store in variable when not
- * selected (only for check buttons).
- * Malloc'ed. */
-
- /*
- * Information used for drawing this menu entry.
- */
-
- int width; /* Number of pixels occupied by entry in
- * horizontal dimension. Not used except
- * in menubars. The width of norma menus
- * is dependent on the rest of the menu. */
- int x; /* X-coordinate of leftmost pixel in entry */
- int height; /* Number of pixels occupied by entry in
- * vertical dimension, including raised
- * border drawn around entry when active. */
- int y; /* Y-coordinate of topmost pixel in entry. */
- GC textGC; /* GC for drawing text in entry. NULL means
- * use overall textGC for menu. */
- GC activeGC; /* GC for drawing text in entry when active.
- * NULL means use overall activeGC for
- * menu. */
- GC disabledGC; /* Used to produce disabled effect for entry.
- * NULL means use overall disabledGC from
- * menu structure. See comments for
- * disabledFg in menu structure for more
- * information. */
- GC indicatorGC; /* For drawing indicators. None means use
- * GC from menu. */
-
- /*
- * Miscellaneous fields.
- */
-
- int entryFlags; /* Various flags. See below for
- definitions. */
- int index; /* Need to know which index we are. This
- * is zero-based. This is the top-left entry
- * of the menu. */
-
- /*
- * Bookeeping for master menus and cascade menus.
- */
-
- struct TkMenuReferences *childMenuRefPtr;
- /* A pointer to the hash table entry for
- * the child menu. Stored here when the menu
- * entry is configured so that a hash lookup
- * is not necessary later.*/
- struct TkMenuEntry *nextCascadePtr;
- /* The next cascade entry that is a parent of
- * this entry's child cascade menu. NULL
- * end of list, this is not a cascade entry,
- * or the menu that this entry point to
- * does not yet exist. */
- TkMenuPlatformEntryData platformEntryData;
- /* The data for the specific type of menu.
- * Depends on platform and menu type what
- * kind of options are in this structure.
- */
-} TkMenuEntry;
-
-/*
- * Flag values defined for menu entries:
- *
- * ENTRY_SELECTED: Non-zero means this is a radio or check
- * button and that it should be drawn in
- * the "selected" state.
- * ENTRY_NEEDS_REDISPLAY: Non-zero means the entry should be redisplayed.
- * ENTRY_LAST_COLUMN: Used by the drawing code. If the entry is in the
- * last column, the space to its right needs to
- * be filled.
- * ENTRY_PLATFORM_FLAG1 - 4 These flags are reserved for use by the
- * platform-dependent implementation of menus
- * and should not be used by anything else.
- */
-
-#define ENTRY_SELECTED 1
-#define ENTRY_NEEDS_REDISPLAY 2
-#define ENTRY_LAST_COLUMN 4
-#define ENTRY_PLATFORM_FLAG1 (1 << 30)
-#define ENTRY_PLATFORM_FLAG2 (1 << 29)
-#define ENTRY_PLATFORM_FLAG3 (1 << 28)
-#define ENTRY_PLATFORM_FLAG4 (1 << 27)
-
-/*
- * Types defined for MenuEntries:
- */
-
-#define COMMAND_ENTRY 0
-#define SEPARATOR_ENTRY 1
-#define CHECK_BUTTON_ENTRY 2
-#define RADIO_BUTTON_ENTRY 3
-#define CASCADE_ENTRY 4
-#define TEAROFF_ENTRY 5
-
-/*
- * Mask bits for above types:
- */
-
-#define COMMAND_MASK TK_CONFIG_USER_BIT
-#define SEPARATOR_MASK (TK_CONFIG_USER_BIT << 1)
-#define CHECK_BUTTON_MASK (TK_CONFIG_USER_BIT << 2)
-#define RADIO_BUTTON_MASK (TK_CONFIG_USER_BIT << 3)
-#define CASCADE_MASK (TK_CONFIG_USER_BIT << 4)
-#define TEAROFF_MASK (TK_CONFIG_USER_BIT << 5)
-#define ALL_MASK (COMMAND_MASK | SEPARATOR_MASK \
- | CHECK_BUTTON_MASK | RADIO_BUTTON_MASK | CASCADE_MASK | TEAROFF_MASK)
-
-/*
- * A data structure of the following type is kept for each
- * menu widget:
- */
-
-typedef struct TkMenu {
- Tk_Window tkwin; /* Window that embodies the pane. NULL
- * means that the window has been destroyed
- * but the data structures haven't yet been
- * cleaned up.*/
- Display *display; /* Display containing widget. Needed, among
- * other things, so that resources can be
- * freed up even after tkwin has gone away. */
- Tcl_Interp *interp; /* Interpreter associated with menu. */
- Tcl_Command widgetCmd; /* Token for menu's widget command. */
- TkMenuEntry **entries; /* Array of pointers to all the entries
- * in the menu. NULL means no entries. */
- int numEntries; /* Number of elements in entries. */
- int active; /* Index of active entry. -1 means
- * nothing active. */
- int menuType; /* MASTER_MENU, TEAROFF_MENU, or MENUBAR.
- * See below for definitions. */
- char *menuTypeName; /* Used to control whether created tkwin
- * is a toplevel or not. "normal", "menubar",
- * or "toplevel" */
-
- /*
- * Information used when displaying widget:
- */
-
- Tk_3DBorder border; /* Structure used to draw 3-D
- * border and background for menu. */
- int borderWidth; /* Width of border around whole menu. */
- Tk_3DBorder activeBorder; /* Used to draw background and border for
- * active element (if any). */
- int activeBorderWidth; /* Width of border around active element. */
- int relief; /* 3-d effect: TK_RELIEF_RAISED, etc. */
- Tk_Font tkfont; /* Text font for menu entries. */
- XColor *fg; /* Foreground color for entries. */
- XColor *disabledFg; /* Foreground color when disabled. NULL
- * means use normalFg with a 50% stipple
- * instead. */
- 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 */
-