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tkMenu.c
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tkMenu.c
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/*
* tkMenu.c --
*
* This file contains most of the code for implementing menus in Tk. It takes
* care of all of the generic (platform-independent) parts of menus, and
* is supplemented by platform-specific files. The geometry calculation
* and drawing code for menus is in the file tkMenuDraw.c
*
* Copyright (c) 1990-1994 The Regents of the University of California.
* Copyright (c) 1994-1997 Sun Microsystems, Inc.
*
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
* SCCS: @(#) tkMenu.c 1.148 97/10/29 09:22:00
*/
/*
* Notes on implementation of menus:
*
* Menus can be used in three ways:
* - as a popup menu, either as part of a menubutton or standalone.
* - as a menubar. The menu's cascade items are arranged according to
* the specific platform to provide the user access to the menus at all
* times
* - as a tearoff palette. This is a window with the menu's items in it.
*
* The goal is to provide the Tk developer with a way to use a common
* set of menus for all of these tasks.
*
* In order to make the bindings for cascade menus work properly under Unix,
* the cascade menus' pathnames must be proper children of the menu that
* they are cascade from. So if there is a menu .m, and it has two
* cascades labelled "File" and "Edit", the cascade menus might have
* the pathnames .m.file and .m.edit. Another constraint is that the menus
* used for menubars must be children of the toplevel widget that they
* are attached to. And on the Macintosh, the platform specific menu handle
* for cascades attached to a menu bar must have a title that matches the
* label for the cascade menu.
*
* To handle all of the constraints, Tk menubars and tearoff menus are
* implemented using menu clones. Menu clones are full menus in their own
* right; they have a Tk window and pathname associated with them; they have
* a TkMenu structure and array of entries. However, they are linked with the
* original menu that they were cloned from. The reflect the attributes of
* the original, or "master", menu. So if an item is added to a menu, and
* that menu has clones, then the item must be added to all of its clones
* also. Menus are cloned when a menu is torn-off or when a menu is assigned
* as a menubar using the "-menu" option of the toplevel's pathname configure
* subcommand. When a clone is destroyed, only the clone is destroyed, but
* when the master menu is destroyed, all clones are also destroyed. This
* allows the developer to just deal with one set of menus when creating
* and destroying.
*
* Clones are rather tricky when a menu with cascade entries is cloned (such
* as a menubar). Not only does the menu have to be cloned, but each cascade
* entry's corresponding menu must also be cloned. This maintains the pathname
* parent-child hierarchy necessary for menubars and toplevels to work.
* This leads to several special cases:
*
* 1. When a new menu is created, and it is pointed to by cascade entries in
* cloned menus, the new menu has to be cloned to parallel the cascade
* structure.
* 2. When a cascade item is added to a menu that has been cloned, and the
* menu that the cascade item points to exists, that menu has to be cloned.
* 3. When the menu that a cascade entry points to is changed, the old
* cloned cascade menu has to be discarded, and the new one has to be cloned.
*
*/
#include "tkPort.h"
#include "tkMenu.h"
#define MENU_HASH_KEY "tkMenus"
static int menusInitialized; /* Whether or not the hash tables, etc., have
* been setup */
/*
* Configuration specs for individual menu entries. If this changes, be sure
* to update code in TkpMenuInit that changes the font string entry.
*/
Tk_ConfigSpec tkMenuEntryConfigSpecs[] = {
{TK_CONFIG_BORDER, "-activebackground", (char *) NULL, (char *) NULL,
DEF_MENU_ENTRY_ACTIVE_BG, Tk_Offset(TkMenuEntry, activeBorder),
COMMAND_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|CASCADE_MASK
|TK_CONFIG_NULL_OK},
{TK_CONFIG_COLOR, "-activeforeground", (char *) NULL, (char *) NULL,
DEF_MENU_ENTRY_ACTIVE_FG, Tk_Offset(TkMenuEntry, activeFg),
COMMAND_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|CASCADE_MASK
|TK_CONFIG_NULL_OK},
{TK_CONFIG_STRING, "-accelerator", (char *) NULL, (char *) NULL,
DEF_MENU_ENTRY_ACCELERATOR, Tk_Offset(TkMenuEntry, accel),
COMMAND_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|CASCADE_MASK
|TK_CONFIG_NULL_OK},
{TK_CONFIG_BORDER, "-background", (char *) NULL, (char *) NULL,
DEF_MENU_ENTRY_BG, Tk_Offset(TkMenuEntry, border),
COMMAND_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|CASCADE_MASK
|SEPARATOR_MASK|TEAROFF_MASK|TK_CONFIG_NULL_OK},
{TK_CONFIG_BITMAP, "-bitmap", (char *) NULL, (char *) NULL,
DEF_MENU_ENTRY_BITMAP, Tk_Offset(TkMenuEntry, bitmap),
COMMAND_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|CASCADE_MASK
|TK_CONFIG_NULL_OK},
{TK_CONFIG_BOOLEAN, "-columnbreak", (char *) NULL, (char *) NULL,
DEF_MENU_ENTRY_COLUMN_BREAK, Tk_Offset(TkMenuEntry, columnBreak),
COMMAND_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|CASCADE_MASK},
{TK_CONFIG_STRING, "-command", (char *) NULL, (char *) NULL,
DEF_MENU_ENTRY_COMMAND, Tk_Offset(TkMenuEntry, command),
COMMAND_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|CASCADE_MASK
|TK_CONFIG_NULL_OK},
{TK_CONFIG_FONT, "-font", (char *) NULL, (char *) NULL,
DEF_MENU_ENTRY_FONT, Tk_Offset(TkMenuEntry, tkfont),
COMMAND_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|CASCADE_MASK
|TK_CONFIG_NULL_OK},
{TK_CONFIG_COLOR, "-foreground", (char *) NULL, (char *) NULL,
DEF_MENU_ENTRY_FG, Tk_Offset(TkMenuEntry, fg),
COMMAND_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|CASCADE_MASK
|TK_CONFIG_NULL_OK},
{TK_CONFIG_BOOLEAN, "-hidemargin", (char *) NULL, (char *) NULL,
DEF_MENU_ENTRY_HIDE_MARGIN, Tk_Offset(TkMenuEntry, hideMargin),
COMMAND_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|CASCADE_MASK
|SEPARATOR_MASK|TEAROFF_MASK},
{TK_CONFIG_STRING, "-image", (char *) NULL, (char *) NULL,
DEF_MENU_ENTRY_IMAGE, Tk_Offset(TkMenuEntry, imageString),
COMMAND_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|CASCADE_MASK
|TK_CONFIG_NULL_OK},
{TK_CONFIG_BOOLEAN, "-indicatoron", (char *) NULL, (char *) NULL,
DEF_MENU_ENTRY_INDICATOR, Tk_Offset(TkMenuEntry, indicatorOn),
CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|TK_CONFIG_DONT_SET_DEFAULT},
{TK_CONFIG_STRING, "-label", (char *) NULL, (char *) NULL,
DEF_MENU_ENTRY_LABEL, Tk_Offset(TkMenuEntry, label),
COMMAND_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|CASCADE_MASK},
{TK_CONFIG_STRING, "-menu", (char *) NULL, (char *) NULL,
DEF_MENU_ENTRY_MENU, Tk_Offset(TkMenuEntry, name),
CASCADE_MASK|TK_CONFIG_NULL_OK},
{TK_CONFIG_STRING, "-offvalue", (char *) NULL, (char *) NULL,
DEF_MENU_ENTRY_OFF_VALUE, Tk_Offset(TkMenuEntry, offValue),
CHECK_BUTTON_MASK},
{TK_CONFIG_STRING, "-onvalue", (char *) NULL, (char *) NULL,
DEF_MENU_ENTRY_ON_VALUE, Tk_Offset(TkMenuEntry, onValue),
CHECK_BUTTON_MASK},
{TK_CONFIG_COLOR, "-selectcolor", (char *) NULL, (char *) NULL,
DEF_MENU_ENTRY_SELECT, Tk_Offset(TkMenuEntry, indicatorFg),
CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|TK_CONFIG_NULL_OK},
{TK_CONFIG_STRING, "-selectimage", (char *) NULL, (char *) NULL,
DEF_MENU_ENTRY_SELECT_IMAGE, Tk_Offset(TkMenuEntry, selectImageString),
CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|TK_CONFIG_NULL_OK},
{TK_CONFIG_UID, "-state", (char *) NULL, (char *) NULL,
DEF_MENU_ENTRY_STATE, Tk_Offset(TkMenuEntry, state),
COMMAND_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|CASCADE_MASK
|TEAROFF_MASK|TK_CONFIG_DONT_SET_DEFAULT},
{TK_CONFIG_STRING, "-value", (char *) NULL, (char *) NULL,
DEF_MENU_ENTRY_VALUE, Tk_Offset(TkMenuEntry, onValue),
RADIO_BUTTON_MASK|TK_CONFIG_NULL_OK},
{TK_CONFIG_STRING, "-variable", (char *) NULL, (char *) NULL,
DEF_MENU_ENTRY_CHECK_VARIABLE, Tk_Offset(TkMenuEntry, name),
CHECK_BUTTON_MASK|TK_CONFIG_NULL_OK},
{TK_CONFIG_STRING, "-variable", (char *) NULL, (char *) NULL,
DEF_MENU_ENTRY_RADIO_VARIABLE, Tk_Offset(TkMenuEntry, name),
RADIO_BUTTON_MASK},
{TK_CONFIG_INT, "-underline", (char *) NULL, (char *) NULL,
DEF_MENU_ENTRY_UNDERLINE, Tk_Offset(TkMenuEntry, underline),
COMMAND_MASK|CHECK_BUTTON_MASK|RADIO_BUTTON_MASK|CASCADE_MASK
|TK_CONFIG_DONT_SET_DEFAULT},
{TK_CONFIG_END, (char *) NULL, (char *) NULL, (char *) NULL,
(char *) NULL, 0, 0}
};
/*
* Configuration specs valid for the menu as a whole. If this changes, be sure
* to update code in TkpMenuInit that changes the font string entry.
*/
Tk_ConfigSpec tkMenuConfigSpecs[] = {
{TK_CONFIG_BORDER, "-activebackground", "activeBackground", "Foreground",
DEF_MENU_ACTIVE_BG_COLOR, Tk_Offset(TkMenu, activeBorder),
TK_CONFIG_COLOR_ONLY},
{TK_CONFIG_BORDER, "-activebackground", "activeBackground", "Foreground",
DEF_MENU_ACTIVE_BG_MONO, Tk_Offset(TkMenu, activeBorder),
TK_CONFIG_MONO_ONLY},
{TK_CONFIG_PIXELS, "-activeborderwidth", "activeBorderWidth",
"BorderWidth", DEF_MENU_ACTIVE_BORDER_WIDTH,
Tk_Offset(TkMenu, activeBorderWidth), 0},
{TK_CONFIG_COLOR, "-activeforeground", "activeForeground", "Background",
DEF_MENU_ACTIVE_FG_COLOR, Tk_Offset(TkMenu, activeFg),
TK_CONFIG_COLOR_ONLY},
{TK_CONFIG_COLOR, "-activeforeground", "activeForeground", "Background",
DEF_MENU_ACTIVE_FG_MONO, Tk_Offset(TkMenu, activeFg),
TK_CONFIG_MONO_ONLY},
{TK_CONFIG_BORDER, "-background", "background", "Background",
DEF_MENU_BG_COLOR, Tk_Offset(TkMenu, border), TK_CONFIG_COLOR_ONLY},
{TK_CONFIG_BORDER, "-background", "background", "Background",
DEF_MENU_BG_MONO, Tk_Offset(TkMenu, border), TK_CONFIG_MONO_ONLY},
{TK_CONFIG_SYNONYM, "-bd", "borderWidth", (char *) NULL,
(char *) NULL, 0, 0},
{TK_CONFIG_SYNONYM, "-bg", "background", (char *) NULL,
(char *) NULL, 0, 0},
{TK_CONFIG_PIXELS, "-borderwidth", "borderWidth", "BorderWidth",
DEF_MENU_BORDER_WIDTH, Tk_Offset(TkMenu, borderWidth), 0},
{TK_CONFIG_ACTIVE_CURSOR, "-cursor", "cursor", "Cursor",
DEF_MENU_CURSOR, Tk_Offset(TkMenu, cursor), TK_CONFIG_NULL_OK},
{TK_CONFIG_COLOR, "-disabledforeground", "disabledForeground",
"DisabledForeground", DEF_MENU_DISABLED_FG_COLOR,
Tk_Offset(TkMenu, disabledFg), TK_CONFIG_COLOR_ONLY|TK_CONFIG_NULL_OK},
{TK_CONFIG_COLOR, "-disabledforeground", "disabledForeground",
"DisabledForeground", DEF_MENU_DISABLED_FG_MONO,
Tk_Offset(TkMenu, disabledFg), TK_CONFIG_MONO_ONLY|TK_CONFIG_NULL_OK},
{TK_CONFIG_SYNONYM, "-fg", "foreground", (char *) NULL,
(char *) NULL, 0, 0},
{TK_CONFIG_FONT, "-font", "font", "Font",
DEF_MENU_FONT, Tk_Offset(TkMenu, tkfont), 0},
{TK_CONFIG_COLOR, "-foreground", "foreground", "Foreground",
DEF_MENU_FG, Tk_Offset(TkMenu, fg), 0},
{TK_CONFIG_STRING, "-postcommand", "postCommand", "Command",
DEF_MENU_POST_COMMAND, Tk_Offset(TkMenu, postCommand),
TK_CONFIG_NULL_OK},
{TK_CONFIG_RELIEF, "-relief", "relief", "Relief",
DEF_MENU_RELIEF, Tk_Offset(TkMenu, relief), 0},
{TK_CONFIG_COLOR, "-selectcolor", "selectColor", "Background",
DEF_MENU_SELECT_COLOR, Tk_Offset(TkMenu, indicatorFg),
TK_CONFIG_COLOR_ONLY},
{TK_CONFIG_COLOR, "-selectcolor", "selectColor", "Background",
DEF_MENU_SELECT_MONO, Tk_Offset(TkMenu, indicatorFg),
TK_CONFIG_MONO_ONLY},
{TK_CONFIG_STRING, "-takefocus", "takeFocus", "TakeFocus",
DEF_MENU_TAKE_FOCUS, Tk_Offset(TkMenu, takeFocus), TK_CONFIG_NULL_OK},
{TK_CONFIG_BOOLEAN, "-tearoff", "tearOff", "TearOff",
DEF_MENU_TEAROFF, Tk_Offset(TkMenu, tearOff), 0},
{TK_CONFIG_STRING, "-tearoffcommand", "tearOffCommand", "TearOffCommand",
DEF_MENU_TEAROFF_CMD, Tk_Offset(TkMenu, tearOffCommand),
TK_CONFIG_NULL_OK},
{TK_CONFIG_STRING, "-title", "title", "Title",
DEF_MENU_TITLE, Tk_Offset(TkMenu, title), TK_CONFIG_NULL_OK},
{TK_CONFIG_STRING, "-type", "type", "Type",
DEF_MENU_TYPE, Tk_Offset(TkMenu, menuTypeName), TK_CONFIG_NULL_OK},
{TK_CONFIG_END, (char *) NULL, (char *) NULL, (char *) NULL,
(char *) NULL, 0, 0}
};
/*
* Prototypes for static procedures in this file:
*/
static int CloneMenu _ANSI_ARGS_((TkMenu *menuPtr,
char *newMenuName, char *newMenuTypeString));
static int ConfigureMenu _ANSI_ARGS_((Tcl_Interp *interp,
TkMenu *menuPtr, int argc, char **argv,
int flags));
static int ConfigureMenuCloneEntries _ANSI_ARGS_((
Tcl_Interp *interp, TkMenu *menuPtr, int index,
int argc, char **argv, int flags));
static int ConfigureMenuEntry _ANSI_ARGS_((TkMenuEntry *mePtr,
int argc, char **argv, int flags));
static void DeleteMenuCloneEntries _ANSI_ARGS_((TkMenu *menuPtr,
int first, int last));
static void DestroyMenuHashTable _ANSI_ARGS_((
ClientData clientData, Tcl_Interp *interp));
static void DestroyMenuInstance _ANSI_ARGS_((TkMenu *menuPtr));
static void DestroyMenuEntry _ANSI_ARGS_((char *memPtr));
static int GetIndexFromCoords
_ANSI_ARGS_((Tcl_Interp *interp, TkMenu *menuPtr,
char *string, int *indexPtr));
static int MenuDoYPosition _ANSI_ARGS_((Tcl_Interp *interp,
TkMenu *menuPtr, char *arg));
static int MenuAddOrInsert _ANSI_ARGS_((Tcl_Interp *interp,
TkMenu *menuPtr, char *indexString, int argc,
char **argv));
static void MenuCmdDeletedProc _ANSI_ARGS_((
ClientData clientData));
static TkMenuEntry * MenuNewEntry _ANSI_ARGS_((TkMenu *menuPtr, int index,
int type));
static char * MenuVarProc _ANSI_ARGS_((ClientData clientData,
Tcl_Interp *interp, char *name1, char *name2,
int flags));
static int MenuWidgetCmd _ANSI_ARGS_((ClientData clientData,
Tcl_Interp *interp, int argc, char **argv));
static void MenuWorldChanged _ANSI_ARGS_((
ClientData instanceData));
static void RecursivelyDeleteMenu _ANSI_ARGS_((TkMenu *menuPtr));
static void UnhookCascadeEntry _ANSI_ARGS_((TkMenuEntry *mePtr));
/*
* The structure below is a list of procs that respond to certain window
* manager events. One of these includes a font change, which forces
* the geometry proc to be called.
*/
static TkClassProcs menuClass = {
NULL, /* createProc. */
MenuWorldChanged /* geometryProc. */
};
/*
*--------------------------------------------------------------
*
* Tk_MenuCmd --
*
* This procedure is invoked to process the "menu" Tcl
* command. See the user documentation for details on
* what it does.
*
* Results:
* A standard Tcl result.
*
* Side effects:
* See the user documentation.
*
*--------------------------------------------------------------
*/
int
Tk_MenuCmd(clientData, interp, argc, argv)
ClientData clientData; /* Main window associated with
* interpreter. */
Tcl_Interp *interp; /* Current interpreter. */
int argc; /* Number of arguments. */
char **argv; /* Argument strings. */
{
Tk_Window tkwin = (Tk_Window) clientData;
Tk_Window new;
register TkMenu *menuPtr;
TkMenuReferences *menuRefPtr;
int i, len;
char *arg, c;
int toplevel;
if (argc < 2) {
Tcl_AppendResult(interp, "wrong # args: should be \"",
argv[0], " pathName ?options?\"", (char *) NULL);
return TCL_ERROR;
}
TkMenuInit();
toplevel = 1;
for (i = 2; i < argc; i += 2) {
arg = argv[i];
len = strlen(arg);
if (len < 2) {
continue;
}
c = arg[1];
if ((c == 't') && (strncmp(arg, "-type", strlen(arg)) == 0)
&& (len >= 3)) {
if (strcmp(argv[i + 1], "menubar") == 0) {
toplevel = 0;
}
break;
}
}
new = Tk_CreateWindowFromPath(interp, tkwin, argv[1], toplevel ? ""
: NULL);
if (new == NULL) {
return TCL_ERROR;
}
/*
* Initialize the data structure for the menu.
*/
menuPtr = (TkMenu *) ckalloc(sizeof(TkMenu));
menuPtr->tkwin = new;
menuPtr->display = Tk_Display(new);
menuPtr->interp = interp;
menuPtr->widgetCmd = Tcl_CreateCommand(interp,
Tk_PathName(menuPtr->tkwin), MenuWidgetCmd,
(ClientData) menuPtr, MenuCmdDeletedProc);
menuPtr->entries = NULL;
menuPtr->numEntries = 0;
menuPtr->active = -1;
menuPtr->border = NULL;
menuPtr->borderWidth = 0;
menuPtr->relief = TK_RELIEF_FLAT;
menuPtr->activeBorder = NULL;
menuPtr->activeBorderWidth = 0;
menuPtr->tkfont = NULL;
menuPtr->fg = NULL;
menuPtr->disabledFg = NULL;
menuPtr->activeFg = NULL;
menuPtr->indicatorFg = NULL;
menuPtr->tearOff = 1;
menuPtr->tearOffCommand = NULL;
menuPtr->cursor = None;
menuPtr->takeFocus = NULL;
menuPtr->postCommand = NULL;
menuPtr->postCommandGeneration = 0;
menuPtr->postedCascade = NULL;
menuPtr->nextInstancePtr = NULL;
menuPtr->masterMenuPtr = menuPtr;
menuPtr->menuType = UNKNOWN_TYPE;
menuPtr->menuFlags = 0;
menuPtr->parentTopLevelPtr = NULL;
menuPtr->menuTypeName = NULL;
menuPtr->title = NULL;
TkMenuInitializeDrawingFields(menuPtr);
menuRefPtr = TkCreateMenuReferences(menuPtr->interp,
Tk_PathName(menuPtr->tkwin));
menuRefPtr->menuPtr = menuPtr;
menuPtr->menuRefPtr = menuRefPtr;
if (TCL_OK != TkpNewMenu(menuPtr)) {
goto error;
}
Tk_SetClass(menuPtr->tkwin, "Menu");
TkSetClassProcs(menuPtr->tkwin, &menuClass, (ClientData) menuPtr);
Tk_CreateEventHandler(new, ExposureMask|StructureNotifyMask|ActivateMask,
TkMenuEventProc, (ClientData) menuPtr);
if (ConfigureMenu(interp, menuPtr, argc-2, argv+2, 0) != TCL_OK) {
goto error;
}
/*
* If a menu has a parent menu pointing to it as a cascade entry, the
* parent menu needs to be told that this menu now exists so that
* the platform-part of the menu is correctly updated.
*
* If a menu has an instance and has cascade entries, then each cascade
* menu must also have a parallel instance. This is especially true on
* the Mac, where each menu has to have a separate title everytime it is in
* a menubar. For instance, say you have a menu .m1 with a cascade entry
* for .m2, where .m2 does not exist yet. You then put .m1 into a menubar.
* This creates a menubar instance for .m1, but since .m2 is not there,
* nothing else happens. When we go to create .m2, we hook it up properly
* with .m1. However, we now need to clone .m2 and assign the clone of .m2
* to be the cascade entry for the clone of .m1. This is special case
* #1 listed in the introductory comment.
*/
if (menuRefPtr->parentEntryPtr != NULL) {
TkMenuEntry *cascadeListPtr = menuRefPtr->parentEntryPtr;
TkMenuEntry *nextCascadePtr;
char *newMenuName;
char *newArgv[2];
while (cascadeListPtr != NULL) {
nextCascadePtr = cascadeListPtr->nextCascadePtr;
/*
* If we have a new master menu, and an existing cloned menu
* points to this menu in a cascade entry, we have to clone
* the new menu and point the entry to the clone instead
* of the menu we are creating. Otherwise, ConfigureMenuEntry
* will hook up the platform-specific cascade linkages now
* that the menu we are creating exists.
*/
if ((menuPtr->masterMenuPtr != menuPtr)
|| ((menuPtr->masterMenuPtr == menuPtr)
&& ((cascadeListPtr->menuPtr->masterMenuPtr
== cascadeListPtr->menuPtr)))) {
newArgv[0] = "-menu";
newArgv[1] = Tk_PathName(menuPtr->tkwin);
ConfigureMenuEntry(cascadeListPtr, 2, newArgv,
TK_CONFIG_ARGV_ONLY);
} else {
newMenuName = TkNewMenuName(menuPtr->interp,
Tk_PathName(cascadeListPtr->menuPtr->tkwin),
menuPtr);
CloneMenu(menuPtr, newMenuName, "normal");
/*
* Now we can set the new menu instance to be the cascade entry
* of the parent's instance.
*/
newArgv[0] = "-menu";
newArgv[1] = newMenuName;
ConfigureMenuEntry(cascadeListPtr, 2, newArgv,
TK_CONFIG_ARGV_ONLY);
if (newMenuName != NULL) {
ckfree(newMenuName);
}
}
cascadeListPtr = nextCascadePtr;
}
}
/*
* If there already exist toplevel widgets that refer to this menu,
* find them and notify them so that they can reconfigure their
* geometry to reflect the menu.
*/
if (menuRefPtr->topLevelListPtr != NULL) {
TkMenuTopLevelList *topLevelListPtr = menuRefPtr->topLevelListPtr;
TkMenuTopLevelList *nextPtr;
Tk_Window listtkwin;
while (topLevelListPtr != NULL) {
/*
* Need to get the next pointer first. TkSetWindowMenuBar
* changes the list, so that the next pointer is different
* after calling it.
*/
nextPtr = topLevelListPtr->nextPtr;
listtkwin = topLevelListPtr->tkwin;
TkSetWindowMenuBar(menuPtr->interp, listtkwin,
Tk_PathName(menuPtr->tkwin), Tk_PathName(menuPtr->tkwin));
topLevelListPtr = nextPtr;
}
}
interp->result = Tk_PathName(menuPtr->tkwin);
return TCL_OK;
error:
Tk_DestroyWindow(menuPtr->tkwin);
return TCL_ERROR;
}
/*
*--------------------------------------------------------------
*
* MenuWidgetCmd --
*
* This procedure is invoked to process the Tcl command
* that corresponds to a widget managed by this module.
* See the user documentation for details on what it does.
*
* Results:
* A standard Tcl result.
*
* Side effects:
* See the user documentation.
*
*--------------------------------------------------------------
*/
static int
MenuWidgetCmd(clientData, interp, argc, argv)
ClientData clientData; /* Information about menu widget. */
Tcl_Interp *interp; /* Current interpreter. */
int argc; /* Number of arguments. */
char **argv; /* Argument strings. */
{
register TkMenu *menuPtr = (TkMenu *) clientData;
register TkMenuEntry *mePtr;
int result = TCL_OK;
size_t length;
int c;
if (argc < 2) {
Tcl_AppendResult(interp, "wrong # args: should be \"",
argv[0], " option ?arg arg ...?\"", (char *) NULL);
return TCL_ERROR;
}
Tcl_Preserve((ClientData) menuPtr);
c = argv[1][0];
length = strlen(argv[1]);
if ((c == 'a') && (strncmp(argv[1], "activate", length) == 0)
&& (length >= 2)) {
int index;
if (argc != 3) {
Tcl_AppendResult(interp, "wrong # args: should be \"",
argv[0], " activate index\"", (char *) NULL);
goto error;
}
if (TkGetMenuIndex(interp, menuPtr, argv[2], 0, &index) != TCL_OK) {
goto error;
}
if (menuPtr->active == index) {
goto done;
}
if (index >= 0) {
if ((menuPtr->entries[index]->type == SEPARATOR_ENTRY)
|| (menuPtr->entries[index]->state == tkDisabledUid)) {
index = -1;
}
}
result = TkActivateMenuEntry(menuPtr, index);
} else if ((c == 'a') && (strncmp(argv[1], "add", length) == 0)
&& (length >= 2)) {
if (argc < 3) {
Tcl_AppendResult(interp, "wrong # args: should be \"",
argv[0], " add type ?options?\"", (char *) NULL);
goto error;
}
if (MenuAddOrInsert(interp, menuPtr, (char *) NULL,
argc-2, argv+2) != TCL_OK) {
goto error;
}
} else if ((c == 'c') && (strncmp(argv[1], "cget", length) == 0)
&& (length >= 2)) {
if (argc != 3) {
Tcl_AppendResult(interp, "wrong # args: should be \"",
argv[0], " cget option\"",
(char *) NULL);
goto error;
}
result = Tk_ConfigureValue(interp, menuPtr->tkwin, tkMenuConfigSpecs,
(char *) menuPtr, argv[2], 0);
} else if ((c == 'c') && (strncmp(argv[1], "clone", length) == 0)
&& (length >=2)) {
if ((argc < 3) || (argc > 4)) {
Tcl_AppendResult(interp, "wrong # args: should be \"",
argv[0], " clone newMenuName ?menuType?\"",
(char *) NULL);
goto error;
}
result = CloneMenu(menuPtr, argv[2], (argc == 3) ? NULL : argv[3]);
} else if ((c == 'c') && (strncmp(argv[1], "configure", length) == 0)
&& (length >= 2)) {
if (argc == 2) {
result = Tk_ConfigureInfo(interp, menuPtr->tkwin,
tkMenuConfigSpecs, (char *) menuPtr, (char *) NULL, 0);
} else if (argc == 3) {
result = Tk_ConfigureInfo(interp, menuPtr->tkwin,
tkMenuConfigSpecs, (char *) menuPtr, argv[2], 0);
} else {
result = ConfigureMenu(interp, menuPtr, argc-2, argv+2,
TK_CONFIG_ARGV_ONLY);
}
} else if ((c == 'd') && (strncmp(argv[1], "delete", length) == 0)) {
int first, last;
if ((argc != 3) && (argc != 4)) {
Tcl_AppendResult(interp, "wrong # args: should be \"",
argv[0], " delete first ?last?\"", (char *) NULL);
goto error;
}
if (TkGetMenuIndex(interp, menuPtr, argv[2], 0, &first) != TCL_OK) {
goto error;
}
if (argc == 3) {
last = first;
} else {
if (TkGetMenuIndex(interp, menuPtr, argv[3], 0, &last) != TCL_OK) {
goto error;
}
}
if (menuPtr->tearOff && (first == 0)) {
/*
* Sorry, can't delete the tearoff entry; must reconfigure
* the menu.
*/
first = 1;
}
if ((first < 0) || (last < first)) {
goto done;
}
DeleteMenuCloneEntries(menuPtr, first, last);
} else if ((c == 'e') && (length >= 7)
&& (strncmp(argv[1], "entrycget", length) == 0)) {
int index;
if (argc != 4) {
Tcl_AppendResult(interp, "wrong # args: should be \"",
argv[0], " entrycget index option\"",
(char *) NULL);
goto error;
}
if (TkGetMenuIndex(interp, menuPtr, argv[2], 0, &index) != TCL_OK) {
goto error;
}
if (index < 0) {
goto done;
}
mePtr = menuPtr->entries[index];
Tcl_Preserve((ClientData) mePtr);
result = Tk_ConfigureValue(interp, menuPtr->tkwin,
tkMenuEntryConfigSpecs, (char *) mePtr, argv[3],
COMMAND_MASK << mePtr->type);
Tcl_Release((ClientData) mePtr);
} else if ((c == 'e') && (length >= 7)
&& (strncmp(argv[1], "entryconfigure", length) == 0)) {
int index;
if (argc < 3) {
Tcl_AppendResult(interp, "wrong # args: should be \"",
argv[0], " entryconfigure index ?option value ...?\"",
(char *) NULL);
goto error;
}
if (TkGetMenuIndex(interp, menuPtr, argv[2], 0, &index) != TCL_OK) {
goto error;
}
if (index < 0) {
goto done;
}
mePtr = menuPtr->entries[index];
Tcl_Preserve((ClientData) mePtr);
if (argc == 3) {
result = Tk_ConfigureInfo(interp, menuPtr->tkwin,
tkMenuEntryConfigSpecs, (char *) mePtr, (char *) NULL,
COMMAND_MASK << mePtr->type);
} else if (argc == 4) {
result = Tk_ConfigureInfo(interp, menuPtr->tkwin,
tkMenuEntryConfigSpecs, (char *) mePtr, argv[3],
COMMAND_MASK << mePtr->type);
} else {
result = ConfigureMenuCloneEntries(interp, menuPtr, index,
argc-3, argv+3,
TK_CONFIG_ARGV_ONLY | COMMAND_MASK << mePtr->type);
}
Tcl_Release((ClientData) mePtr);
} else if ((c == 'i') && (strncmp(argv[1], "index", length) == 0)
&& (length >= 3)) {
int index;
if (argc != 3) {
Tcl_AppendResult(interp, "wrong # args: should be \"",
argv[0], " index string\"", (char *) NULL);
goto error;
}
if (TkGetMenuIndex(interp, menuPtr, argv[2], 0, &index) != TCL_OK) {
goto error;
}
if (index < 0) {
interp->result = "none";
} else {
sprintf(interp->result, "%d", index);
}
} else if ((c == 'i') && (strncmp(argv[1], "insert", length) == 0)
&& (length >= 3)) {
if (argc < 4) {
Tcl_AppendResult(interp, "wrong # args: should be \"",
argv[0], " insert index type ?options?\"", (char *) NULL);
goto error;
}
if (MenuAddOrInsert(interp, menuPtr, argv[2],
argc-3, argv+3) != TCL_OK) {
goto error;
}
} else if ((c == 'i') && (strncmp(argv[1], "invoke", length) == 0)
&& (length >= 3)) {
int index;
if (argc != 3) {
Tcl_AppendResult(interp, "wrong # args: should be \"",
argv[0], " invoke index\"", (char *) NULL);
goto error;
}
if (TkGetMenuIndex(interp, menuPtr, argv[2], 0, &index) != TCL_OK) {
goto error;
}
if (index < 0) {
goto done;
}
result = TkInvokeMenu(interp, menuPtr, index);
} else if ((c == 'p') && (strncmp(argv[1], "post", length) == 0)
&& (length == 4)) {
int x, y;
if (argc != 4) {
Tcl_AppendResult(interp, "wrong # args: should be \"",
argv[0], " post x y\"", (char *) NULL);
goto error;
}
if ((Tcl_GetInt(interp, argv[2], &x) != TCL_OK)
|| (Tcl_GetInt(interp, argv[3], &y) != TCL_OK)) {
goto error;
}
/*
* Tearoff menus are posted differently on Mac and Windows than
* non-tearoffs. TkpPostMenu does not actually map the menu's
* window on those platforms, and popup menus have to be
* handled specially.
*/
if (menuPtr->menuType != TEAROFF_MENU) {
result = TkpPostMenu(interp, menuPtr, x, y);
} else {
result = TkPostTearoffMenu(interp, menuPtr, x, y);
}
} else if ((c == 'p') && (strncmp(argv[1], "postcascade", length) == 0)
&& (length > 4)) {
int index;
if (argc != 3) {
Tcl_AppendResult(interp, "wrong # args: should be \"",
argv[0], " postcascade index\"", (char *) NULL);
goto error;
}
if (TkGetMenuIndex(interp, menuPtr, argv[2], 0, &index) != TCL_OK) {
goto error;
}
if ((index < 0) || (menuPtr->entries[index]->type != CASCADE_ENTRY)) {
result = TkPostSubmenu(interp, menuPtr, (TkMenuEntry *) NULL);
} else {
result = TkPostSubmenu(interp, menuPtr, menuPtr->entries[index]);
}
} else if ((c == 't') && (strncmp(argv[1], "type", length) == 0)) {
int index;
if (argc != 3) {
Tcl_AppendResult(interp, "wrong # args: should be \"",
argv[0], " type index\"", (char *) NULL);
goto error;
}
if (TkGetMenuIndex(interp, menuPtr, argv[2], 0, &index) != TCL_OK) {
goto error;
}
if (index < 0) {
goto done;
}
mePtr = menuPtr->entries[index];
switch (mePtr->type) {
case COMMAND_ENTRY:
interp->result = "command";
break;
case SEPARATOR_ENTRY:
interp->result = "separator";
break;
case CHECK_BUTTON_ENTRY:
interp->result = "checkbutton";
break;
case RADIO_BUTTON_ENTRY:
interp->result = "radiobutton";
break;
case CASCADE_ENTRY:
interp->result = "cascade";
break;
case TEAROFF_ENTRY:
interp->result = "tearoff";
break;
}
} else if ((c == 'u') && (strncmp(argv[1], "unpost", length) == 0)) {
if (argc != 2) {
Tcl_AppendResult(interp, "wrong # args: should be \"",
argv[0], " unpost\"", (char *) NULL);
goto error;
}
Tk_UnmapWindow(menuPtr->tkwin);
result = TkPostSubmenu(interp, menuPtr, (TkMenuEntry *) NULL);
} else if ((c == 'y') && (strncmp(argv[1], "yposition", length) == 0)) {
if (argc != 3) {
Tcl_AppendResult(interp, "wrong # args: should be \"",
argv[0], " yposition index\"", (char *) NULL);
goto error;
}
result = MenuDoYPosition(interp, menuPtr, argv[2]);
} else {
Tcl_AppendResult(interp, "bad option \"", argv[1],
"\": must be activate, add, cget, clone, configure, delete, ",
"entrycget, entryconfigure, index, insert, invoke, ",
"post, postcascade, type, unpost, or yposition",
(char *) NULL);
goto error;
}
done:
Tcl_Release((ClientData) menuPtr);
return result;
error:
Tcl_Release((ClientData) menuPtr);
return TCL_ERROR;
}
/*
*----------------------------------------------------------------------
*
* TkInvokeMenu --
*
* Given a menu and an index, takes the appropriate action for the
* entry associated with that index.
*
* Results:
* Standard Tcl result.
*
* Side effects:
* Commands may get excecuted; variables may get set; sub-menus may
* get posted.
*
*----------------------------------------------------------------------
*/
int
TkInvokeMenu(interp, menuPtr, index)
Tcl_Interp *interp; /* The interp that the menu lives in. */
TkMenu *menuPtr; /* The menu we are invoking. */
int index; /* The zero based index of the item we
* are invoking */
{
int result = TCL_OK;
TkMenuEntry *mePtr;
if (index < 0) {
goto done;
}
mePtr = menuPtr->entries[index];
if (mePtr->state == tkDisabledUid) {
goto done;
}
Tcl_Preserve((ClientData) mePtr);
if (mePtr->type == TEAROFF_ENTRY) {
Tcl_DString commandDString;
Tcl_DStringInit(&commandDString);
Tcl_DStringAppendElement(&commandDString, "tkTearOffMenu");
Tcl_DStringAppendElement(&commandDString, Tk_PathName(menuPtr->tkwin));
result = Tcl_Eval(interp, Tcl_DStringValue(&commandDString));
Tcl_DStringFree(&commandDString);
} else if (mePtr->type == CHECK_BUTTON_ENTRY) {
if (mePtr->entryFlags & ENTRY_SELECTED) {
if (Tcl_SetVar(interp, mePtr->name, mePtr->offValue,
TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) {
result = TCL_ERROR;
}
} else {
if (Tcl_SetVar(interp, mePtr->name, mePtr->onValue,
TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) {
result = TCL_ERROR;
}
}
} else if (mePtr->type == RADIO_BUTTON_ENTRY) {
if (Tcl_SetVar(interp, mePtr->name, mePtr->onValue,
TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) {
result = TCL_ERROR;
}
}
if ((result == TCL_OK) && (mePtr->command != NULL)) {
result = TkCopyAndGlobalEval(interp, mePtr->command);
}
Tcl_Release((ClientData) mePtr);
done:
return result;
}
/*
*----------------------------------------------------------------------
*
* DestroyMenuInstance --
*
* This procedure is invoked by TkDestroyMenu
* to clean up the internal structure of a menu at a safe time
* (when no-one is using it anymore). Only takes care of one instance
* of the menu.
*
* Results:
* None.
*
* Side effects:
* Everything associated with the menu is freed up.
*
*----------------------------------------------------------------------
*/
static void
DestroyMenuInstance(menuPtr)
TkMenu *menuPtr; /* Info about menu widget. */
{
int i, numEntries = menuPtr->numEntries;
TkMenu *menuInstancePtr;
TkMenuEntry *cascadePtr, *nextCascadePtr;
char *newArgv[2];
TkMenu *parentMasterMenuPtr;
TkMenuEntry *parentMasterEntryPtr;
TkMenu *parentMenuPtr;
/*
* If the menu has any cascade menu entries pointing to it, the cascade
* entries need to be told that the menu is going away. We need to clear
* the menu ptr field in the menu reference at this point in the code
* so that everything else can forget about this menu properly. We also
* need to reset -menu field of all entries that are not master menus
* back to this entry name if this is a master menu pointed to by another
* master menu. If there is a clone menu that points to this menu,
* then this menu is itself a clone, so when this menu goes away,
* the -menu field of the pointing entry must be set back to this
* menu's master menu name so that later if another menu is created
* the cascade hierarchy can be maintained.
*/
TkpDestroyMenu(menuPtr);
cascadePtr = menuPtr->menuRefPtr->parentEntryPtr;
menuPtr->menuRefPtr->menuPtr = NULL;
TkFreeMenuReferences(menuPtr->menuRefPtr);
for (; cascadePtr != NULL; cascadePtr = nextCascadePtr) {
parentMenuPtr = cascadePtr->menuPtr;
nextCascadePtr = cascadePtr->nextCascadePtr;
if (menuPtr->masterMenuPtr != menuPtr) {
parentMasterMenuPtr = cascadePtr->menuPtr->masterMenuPtr;
parentMasterEntryPtr =
parentMasterMenuPtr->entries[cascadePtr->index];
newArgv[0] = "-menu";
newArgv[1] = parentMasterEntryPtr->name;
ConfigureMenuEntry(cascadePtr, 2, newArgv, TK_CONFIG_ARGV_ONLY);
} else {
ConfigureMenuEntry(cascadePtr, 0, (char **) NULL, 0);
}
}
if (menuPtr->masterMenuPtr != menuPtr) {
for (menuInstancePtr = menuPtr->masterMenuPtr;
menuInstancePtr != NULL;
menuInstancePtr = menuInstancePtr->nextInstancePtr) {