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tkMenu.c
3615 lines (3256 loc) · 103 KB
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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) 1994-1998 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.c,v 1.41.2.5 2010/02/17 20:58:01 jenglish Exp $
*/
/*
* 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.
*/
#if 0
/*
* used only to test for old config code
*/
#define __NO_OLD_CONFIG
#endif
#include "tkInt.h"
#include "tkMenu.h"
#define MENU_HASH_KEY "tkMenus"
typedef struct ThreadSpecificData {
int menusInitialized; /* Flag indicates whether thread-specific
* elements of the Windows Menu module have
* been initialized. */
} ThreadSpecificData;
static Tcl_ThreadDataKey dataKey;
/*
* The following flag indicates whether the process-wide state for the Menu
* module has been intialized. The Mutex protects access to that flag.
*/
static int menusInitialized;
TCL_DECLARE_MUTEX(menuMutex)
/*
* Configuration specs for individual menu entries. If this changes, be sure
* to update code in TkpMenuInit that changes the font string entry.
*/
char *tkMenuStateStrings[] = {"active", "normal", "disabled", NULL};
static CONST char *menuEntryTypeStrings[] = {
"cascade", "checkbutton", "command", "radiobutton", "separator", NULL
};
/*
* The following table defines the legal values for the -compound option. It
* is used with the "enum compound" declaration in tkMenu.h
*/
static char *compoundStrings[] = {
"bottom", "center", "left", "none", "right", "top", NULL
};
static const Tk_OptionSpec tkBasicMenuEntryConfigSpecs[] = {
{TK_OPTION_BORDER, "-activebackground", NULL, NULL,
DEF_MENU_ENTRY_ACTIVE_BG, Tk_Offset(TkMenuEntry, activeBorderPtr), -1,
TK_OPTION_NULL_OK},
{TK_OPTION_COLOR, "-activeforeground", NULL, NULL,
DEF_MENU_ENTRY_ACTIVE_FG,
Tk_Offset(TkMenuEntry, activeFgPtr), -1, TK_OPTION_NULL_OK},
{TK_OPTION_STRING, "-accelerator", NULL, NULL,
DEF_MENU_ENTRY_ACCELERATOR,
Tk_Offset(TkMenuEntry, accelPtr), -1, TK_OPTION_NULL_OK},
{TK_OPTION_BORDER, "-background", NULL, NULL,
DEF_MENU_ENTRY_BG,
Tk_Offset(TkMenuEntry, borderPtr), -1, TK_OPTION_NULL_OK},
{TK_OPTION_BITMAP, "-bitmap", NULL, NULL,
DEF_MENU_ENTRY_BITMAP,
Tk_Offset(TkMenuEntry, bitmapPtr), -1, TK_OPTION_NULL_OK},
{TK_OPTION_BOOLEAN, "-columnbreak", NULL, NULL,
DEF_MENU_ENTRY_COLUMN_BREAK,
-1, Tk_Offset(TkMenuEntry, columnBreak)},
{TK_OPTION_STRING, "-command", NULL, NULL,
DEF_MENU_ENTRY_COMMAND,
Tk_Offset(TkMenuEntry, commandPtr), -1, TK_OPTION_NULL_OK},
{TK_OPTION_STRING_TABLE, "-compound", "compound", "Compound",
DEF_MENU_ENTRY_COMPOUND, -1, Tk_Offset(TkMenuEntry, compound), 0,
(ClientData) compoundStrings, 0},
{TK_OPTION_FONT, "-font", NULL, NULL,
DEF_MENU_ENTRY_FONT,
Tk_Offset(TkMenuEntry, fontPtr), -1, TK_OPTION_NULL_OK},
{TK_OPTION_COLOR, "-foreground", NULL, NULL,
DEF_MENU_ENTRY_FG,
Tk_Offset(TkMenuEntry, fgPtr), -1, TK_OPTION_NULL_OK},
{TK_OPTION_BOOLEAN, "-hidemargin", NULL, NULL,
DEF_MENU_ENTRY_HIDE_MARGIN,
-1, Tk_Offset(TkMenuEntry, hideMargin)},
{TK_OPTION_STRING, "-image", NULL, NULL,
DEF_MENU_ENTRY_IMAGE,
Tk_Offset(TkMenuEntry, imagePtr), -1, TK_OPTION_NULL_OK},
{TK_OPTION_STRING, "-label", NULL, NULL,
DEF_MENU_ENTRY_LABEL,
Tk_Offset(TkMenuEntry, labelPtr), -1, 0},
{TK_OPTION_STRING_TABLE, "-state", NULL, NULL,
DEF_MENU_ENTRY_STATE,
-1, Tk_Offset(TkMenuEntry, state), 0,
(ClientData) tkMenuStateStrings},
{TK_OPTION_INT, "-underline", NULL, NULL,
DEF_MENU_ENTRY_UNDERLINE, -1, Tk_Offset(TkMenuEntry, underline)},
{TK_OPTION_END}
};
static const Tk_OptionSpec tkSeparatorEntryConfigSpecs[] = {
{TK_OPTION_BORDER, "-background", NULL, NULL,
DEF_MENU_ENTRY_BG,
Tk_Offset(TkMenuEntry, borderPtr), -1, TK_OPTION_NULL_OK},
{TK_OPTION_END}
};
static const Tk_OptionSpec tkCheckButtonEntryConfigSpecs[] = {
{TK_OPTION_BOOLEAN, "-indicatoron", NULL, NULL,
DEF_MENU_ENTRY_INDICATOR,
-1, Tk_Offset(TkMenuEntry, indicatorOn)},
{TK_OPTION_STRING, "-offvalue", NULL, NULL,
DEF_MENU_ENTRY_OFF_VALUE,
Tk_Offset(TkMenuEntry, offValuePtr), -1},
{TK_OPTION_STRING, "-onvalue", NULL, NULL,
DEF_MENU_ENTRY_ON_VALUE,
Tk_Offset(TkMenuEntry, onValuePtr), -1},
{TK_OPTION_COLOR, "-selectcolor", NULL, NULL,
DEF_MENU_ENTRY_SELECT,
Tk_Offset(TkMenuEntry, indicatorFgPtr), -1, TK_OPTION_NULL_OK},
{TK_OPTION_STRING, "-selectimage", NULL, NULL,
DEF_MENU_ENTRY_SELECT_IMAGE,
Tk_Offset(TkMenuEntry, selectImagePtr), -1, TK_OPTION_NULL_OK},
{TK_OPTION_STRING, "-variable", NULL, NULL,
DEF_MENU_ENTRY_CHECK_VARIABLE,
Tk_Offset(TkMenuEntry, namePtr), -1, TK_OPTION_NULL_OK},
{TK_OPTION_END, NULL, NULL, NULL,
NULL, 0, -1, 0, (ClientData) tkBasicMenuEntryConfigSpecs}
};
static const Tk_OptionSpec tkRadioButtonEntryConfigSpecs[] = {
{TK_OPTION_BOOLEAN, "-indicatoron", NULL, NULL,
DEF_MENU_ENTRY_INDICATOR,
-1, Tk_Offset(TkMenuEntry, indicatorOn)},
{TK_OPTION_COLOR, "-selectcolor", NULL, NULL,
DEF_MENU_ENTRY_SELECT,
Tk_Offset(TkMenuEntry, indicatorFgPtr), -1, TK_OPTION_NULL_OK},
{TK_OPTION_STRING, "-selectimage", NULL, NULL,
DEF_MENU_ENTRY_SELECT_IMAGE,
Tk_Offset(TkMenuEntry, selectImagePtr), -1, TK_OPTION_NULL_OK},
{TK_OPTION_STRING, "-value", NULL, NULL,
DEF_MENU_ENTRY_VALUE,
Tk_Offset(TkMenuEntry, onValuePtr), -1, TK_OPTION_NULL_OK},
{TK_OPTION_STRING, "-variable", NULL, NULL,
DEF_MENU_ENTRY_RADIO_VARIABLE,
Tk_Offset(TkMenuEntry, namePtr), -1, 0},
{TK_OPTION_END, NULL, NULL, NULL,
NULL, 0, -1, 0, (ClientData) tkBasicMenuEntryConfigSpecs}
};
static const Tk_OptionSpec tkCascadeEntryConfigSpecs[] = {
{TK_OPTION_STRING, "-menu", NULL, NULL,
DEF_MENU_ENTRY_MENU,
Tk_Offset(TkMenuEntry, namePtr), -1, TK_OPTION_NULL_OK},
{TK_OPTION_END, NULL, NULL, NULL,
NULL, 0, -1, 0, (ClientData) tkBasicMenuEntryConfigSpecs}
};
static const Tk_OptionSpec tkTearoffEntryConfigSpecs[] = {
{TK_OPTION_BORDER, "-background", NULL, NULL,
DEF_MENU_ENTRY_BG,
Tk_Offset(TkMenuEntry, borderPtr), -1, TK_OPTION_NULL_OK},
{TK_OPTION_STRING_TABLE, "-state", NULL, NULL,
DEF_MENU_ENTRY_STATE, -1, Tk_Offset(TkMenuEntry, state), 0,
(ClientData) tkMenuStateStrings},
{TK_OPTION_END}
};
static const Tk_OptionSpec *specsArray[] = {
tkCascadeEntryConfigSpecs, tkCheckButtonEntryConfigSpecs,
tkBasicMenuEntryConfigSpecs, tkRadioButtonEntryConfigSpecs,
tkSeparatorEntryConfigSpecs, tkTearoffEntryConfigSpecs
};
/*
* Menu type strings for use with Tcl_GetIndexFromObj.
*/
static const char *menuTypeStrings[] = {
"normal", "tearoff", "menubar", NULL
};
static const Tk_OptionSpec tkMenuConfigSpecs[] = {
{TK_OPTION_BORDER, "-activebackground", "activeBackground",
"Foreground", DEF_MENU_ACTIVE_BG_COLOR,
Tk_Offset(TkMenu, activeBorderPtr), -1, 0,
(ClientData) DEF_MENU_ACTIVE_BG_MONO},
{TK_OPTION_PIXELS, "-activeborderwidth", "activeBorderWidth",
"BorderWidth", DEF_MENU_ACTIVE_BORDER_WIDTH,
Tk_Offset(TkMenu, activeBorderWidthPtr), -1},
{TK_OPTION_COLOR, "-activeforeground", "activeForeground",
"Background", DEF_MENU_ACTIVE_FG_COLOR,
Tk_Offset(TkMenu, activeFgPtr), -1, 0,
(ClientData) DEF_MENU_ACTIVE_FG_MONO},
{TK_OPTION_BORDER, "-background", "background", "Background",
DEF_MENU_BG_COLOR, Tk_Offset(TkMenu, borderPtr), -1, 0,
(ClientData) DEF_MENU_BG_MONO},
{TK_OPTION_SYNONYM, "-bd", NULL, NULL,
NULL, 0, -1, 0, (ClientData) "-borderwidth"},
{TK_OPTION_SYNONYM, "-bg", NULL, NULL,
NULL, 0, -1, 0, (ClientData) "-background"},
{TK_OPTION_PIXELS, "-borderwidth", "borderWidth", "BorderWidth",
DEF_MENU_BORDER_WIDTH,
Tk_Offset(TkMenu, borderWidthPtr), -1, 0},
{TK_OPTION_CURSOR, "-cursor", "cursor", "Cursor",
DEF_MENU_CURSOR,
Tk_Offset(TkMenu, cursorPtr), -1, TK_OPTION_NULL_OK},
{TK_OPTION_COLOR, "-disabledforeground", "disabledForeground",
"DisabledForeground", DEF_MENU_DISABLED_FG_COLOR,
Tk_Offset(TkMenu, disabledFgPtr), -1, TK_OPTION_NULL_OK,
(ClientData) DEF_MENU_DISABLED_FG_MONO},
{TK_OPTION_SYNONYM, "-fg", NULL, NULL,
NULL, 0, -1, 0, (ClientData) "-foreground"},
{TK_OPTION_FONT, "-font", "font", "Font",
DEF_MENU_FONT, Tk_Offset(TkMenu, fontPtr), -1},
{TK_OPTION_COLOR, "-foreground", "foreground", "Foreground",
DEF_MENU_FG, Tk_Offset(TkMenu, fgPtr), -1},
{TK_OPTION_STRING, "-postcommand", "postCommand", "Command",
DEF_MENU_POST_COMMAND,
Tk_Offset(TkMenu, postCommandPtr), -1, TK_OPTION_NULL_OK},
{TK_OPTION_RELIEF, "-relief", "relief", "Relief",
DEF_MENU_RELIEF, Tk_Offset(TkMenu, reliefPtr), -1},
{TK_OPTION_COLOR, "-selectcolor", "selectColor", "Background",
DEF_MENU_SELECT_COLOR, Tk_Offset(TkMenu, indicatorFgPtr), -1, 0,
(ClientData) DEF_MENU_SELECT_MONO},
{TK_OPTION_STRING, "-takefocus", "takeFocus", "TakeFocus",
DEF_MENU_TAKE_FOCUS,
Tk_Offset(TkMenu, takeFocusPtr), -1, TK_OPTION_NULL_OK},
{TK_OPTION_BOOLEAN, "-tearoff", "tearOff", "TearOff",
DEF_MENU_TEAROFF, -1, Tk_Offset(TkMenu, tearoff)},
{TK_OPTION_STRING, "-tearoffcommand", "tearOffCommand",
"TearOffCommand", DEF_MENU_TEAROFF_CMD,
Tk_Offset(TkMenu, tearoffCommandPtr), -1, TK_OPTION_NULL_OK},
{TK_OPTION_STRING, "-title", "title", "Title",
DEF_MENU_TITLE, Tk_Offset(TkMenu, titlePtr), -1,
TK_OPTION_NULL_OK},
{TK_OPTION_STRING_TABLE, "-type", "type", "Type",
DEF_MENU_TYPE, Tk_Offset(TkMenu, menuTypePtr), -1, TK_OPTION_NULL_OK,
(ClientData) menuTypeStrings},
{TK_OPTION_END}
};
/*
* Command line options. Put here because MenuCmd has to look at them along
* with MenuWidgetObjCmd.
*/
static CONST char *menuOptions[] = {
"activate", "add", "cget", "clone", "configure", "delete", "entrycget",
"entryconfigure", "index", "insert", "invoke", "post", "postcascade",
"type", "unpost", "xposition", "yposition", NULL
};
enum options {
MENU_ACTIVATE, MENU_ADD, MENU_CGET, MENU_CLONE, MENU_CONFIGURE,
MENU_DELETE, MENU_ENTRYCGET, MENU_ENTRYCONFIGURE, MENU_INDEX,
MENU_INSERT, MENU_INVOKE, MENU_POST, MENU_POSTCASCADE, MENU_TYPE,
MENU_UNPOST, MENU_XPOSITION, MENU_YPOSITION
};
/*
* Prototypes for static functions in this file:
*/
static int CloneMenu(TkMenu *menuPtr, Tcl_Obj *newMenuName,
Tcl_Obj *newMenuTypeString);
static int ConfigureMenu(Tcl_Interp *interp, TkMenu *menuPtr,
int objc, Tcl_Obj *CONST objv[]);
static int ConfigureMenuCloneEntries(Tcl_Interp *interp,
TkMenu *menuPtr, int index,
int objc, Tcl_Obj *CONST objv[]);
static int ConfigureMenuEntry(TkMenuEntry *mePtr,
int objc, Tcl_Obj *CONST objv[]);
static void DeleteMenuCloneEntries(TkMenu *menuPtr,
int first, int last);
static void DestroyMenuHashTable(ClientData clientData,
Tcl_Interp *interp);
static void DestroyMenuInstance(TkMenu *menuPtr);
static void DestroyMenuEntry(char *memPtr);
static int GetIndexFromCoords(Tcl_Interp *interp, TkMenu *menuPtr,
char *string, int *indexPtr);
static int MenuDoYPosition(Tcl_Interp *interp,
TkMenu *menuPtr, Tcl_Obj *objPtr);
static int MenuDoXPosition(Tcl_Interp *interp,
TkMenu *menuPtr, Tcl_Obj *objPtr);
static int MenuAddOrInsert(Tcl_Interp *interp,
TkMenu *menuPtr, Tcl_Obj *indexPtr, int objc,
Tcl_Obj *CONST objv[]);
static int MenuCmd(ClientData clientData, Tcl_Interp *interp,
int objc, Tcl_Obj *CONST objv[]);
static void MenuCmdDeletedProc(ClientData clientData);
static TkMenuEntry * MenuNewEntry(TkMenu *menuPtr, int index, int type);
static char * MenuVarProc(ClientData clientData,
Tcl_Interp *interp, CONST char *name1,
CONST char *name2, int flags);
static int MenuWidgetObjCmd(ClientData clientData,
Tcl_Interp *interp, int objc,
Tcl_Obj *CONST objv[]);
static void MenuWorldChanged(ClientData instanceData);
static int PostProcessEntry(TkMenuEntry *mePtr);
static void RecursivelyDeleteMenu(TkMenu *menuPtr);
static void UnhookCascadeEntry(TkMenuEntry *mePtr);
static void TkMenuCleanup(ClientData unused);
/*
* 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 Tk_ClassProcs menuClass = {
sizeof(Tk_ClassProcs), /* size */
MenuWorldChanged /* worldChangedProc */
};
/*
*--------------------------------------------------------------
*
* TkCreateMenuCmd --
*
* Called by Tk at initialization time to create the menu command.
*
* Results:
* A standard Tcl result.
*
* Side effects:
* See the user documentation.
*
*--------------------------------------------------------------
*/
static void
FreeOptionTables(
ClientData clientData,
Tcl_Interp *interp)
{
ckfree(clientData);
}
int
TkCreateMenuCmd(
Tcl_Interp *interp) /* Interpreter we are creating the command
* in. */
{
TkMenuOptionTables *optionTablesPtr =
(TkMenuOptionTables *) ckalloc(sizeof(TkMenuOptionTables));
optionTablesPtr->menuOptionTable =
Tk_CreateOptionTable(interp, tkMenuConfigSpecs);
optionTablesPtr->entryOptionTables[TEAROFF_ENTRY] =
Tk_CreateOptionTable(interp, specsArray[TEAROFF_ENTRY]);
optionTablesPtr->entryOptionTables[COMMAND_ENTRY] =
Tk_CreateOptionTable(interp, specsArray[COMMAND_ENTRY]);
optionTablesPtr->entryOptionTables[CASCADE_ENTRY] =
Tk_CreateOptionTable(interp, specsArray[CASCADE_ENTRY]);
optionTablesPtr->entryOptionTables[SEPARATOR_ENTRY] =
Tk_CreateOptionTable(interp, specsArray[SEPARATOR_ENTRY]);
optionTablesPtr->entryOptionTables[RADIO_BUTTON_ENTRY] =
Tk_CreateOptionTable(interp, specsArray[RADIO_BUTTON_ENTRY]);
optionTablesPtr->entryOptionTables[CHECK_BUTTON_ENTRY] =
Tk_CreateOptionTable(interp, specsArray[CHECK_BUTTON_ENTRY]);
Tcl_CreateObjCommand(interp, "menu", MenuCmd, optionTablesPtr, 0);
Tcl_CallWhenDeleted(interp, FreeOptionTables, optionTablesPtr);
if (Tcl_IsSafe(interp)) {
Tcl_HideCommand(interp, "menu", "menu");
}
return TCL_OK;
}
/*
*--------------------------------------------------------------
*
* MenuCmd --
*
* This function 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.
*
*--------------------------------------------------------------
*/
static int
MenuCmd(
ClientData clientData, /* Main window associated with interpreter. */
Tcl_Interp *interp, /* Current interpreter. */
int objc, /* Number of arguments. */
Tcl_Obj *CONST objv[]) /* Argument strings. */
{
Tk_Window tkwin = Tk_MainWindow(interp);
Tk_Window newWin;
register TkMenu *menuPtr;
TkMenuReferences *menuRefPtr;
int i, index, toplevel;
char *windowName;
static CONST char *typeStringList[] = {"-type", NULL};
TkMenuOptionTables *optionTablesPtr = (TkMenuOptionTables *) clientData;
if (objc < 2) {
Tcl_WrongNumArgs(interp, 1, objv, "pathName ?options?");
return TCL_ERROR;
}
TkMenuInit();
toplevel = 1;
for (i = 2; i < (objc - 1); i++) {
if (Tcl_GetIndexFromObj(NULL, objv[i], typeStringList, NULL, 0, &index)
!= TCL_ERROR) {
if ((Tcl_GetIndexFromObj(NULL, objv[i + 1], menuTypeStrings, NULL,
0, &index) == TCL_OK) && (index == MENUBAR)) {
toplevel = 0;
}
break;
}
}
windowName = Tcl_GetString(objv[1]);
newWin = Tk_CreateWindowFromPath(interp, tkwin, windowName,
toplevel ? "" : NULL);
if (newWin == NULL) {
return TCL_ERROR;
}
/*
* Initialize the data structure for the menu. Note that the menuPtr is
* eventually freed in 'TkMenuEventProc' in tkMenuDraw.c, when
* Tcl_EventuallyFree is called.
*/
menuPtr = (TkMenu *) ckalloc(sizeof(TkMenu));
memset(menuPtr, 0, sizeof(TkMenu));
menuPtr->tkwin = newWin;
menuPtr->display = Tk_Display(newWin);
menuPtr->interp = interp;
menuPtr->widgetCmd = Tcl_CreateObjCommand(interp,
Tk_PathName(menuPtr->tkwin), MenuWidgetObjCmd,
(ClientData) menuPtr, MenuCmdDeletedProc);
menuPtr->active = -1;
menuPtr->cursorPtr = None;
menuPtr->masterMenuPtr = menuPtr;
menuPtr->menuType = UNKNOWN_TYPE;
menuPtr->optionTablesPtr = optionTablesPtr;
TkMenuInitializeDrawingFields(menuPtr);
Tk_SetClass(menuPtr->tkwin, "Menu");
Tk_SetClassProcs(menuPtr->tkwin, &menuClass, (ClientData) menuPtr);
Tk_CreateEventHandler(newWin,
ExposureMask|StructureNotifyMask|ActivateMask,
TkMenuEventProc, (ClientData) menuPtr);
if (Tk_InitOptions(interp, (char *) menuPtr,
menuPtr->optionTablesPtr->menuOptionTable, menuPtr->tkwin)
!= TCL_OK) {
Tk_DestroyWindow(menuPtr->tkwin);
return TCL_ERROR;
}
menuRefPtr = TkCreateMenuReferences(menuPtr->interp,
Tk_PathName(menuPtr->tkwin));
menuRefPtr->menuPtr = menuPtr;
menuPtr->menuRefPtr = menuRefPtr;
if (TCL_OK != TkpNewMenu(menuPtr)) {
Tk_DestroyWindow(menuPtr->tkwin);
return TCL_ERROR;
}
if (ConfigureMenu(interp, menuPtr, objc - 2, objv + 2) != TCL_OK) {
Tk_DestroyWindow(menuPtr->tkwin);
return TCL_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;
Tcl_Obj *newMenuName, *newObjv[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)))) {
newObjv[0] = Tcl_NewStringObj("-menu", -1);
newObjv[1] = Tcl_NewStringObj(Tk_PathName(menuPtr->tkwin), -1);
Tcl_IncrRefCount(newObjv[0]);
Tcl_IncrRefCount(newObjv[1]);
ConfigureMenuEntry(cascadeListPtr, 2, newObjv);
Tcl_DecrRefCount(newObjv[0]);
Tcl_DecrRefCount(newObjv[1]);
} else {
Tcl_Obj *normalPtr = Tcl_NewStringObj("normal", -1);
Tcl_Obj *windowNamePtr = Tcl_NewStringObj(
Tk_PathName(cascadeListPtr->menuPtr->tkwin), -1);
Tcl_IncrRefCount(normalPtr);
Tcl_IncrRefCount(windowNamePtr);
newMenuName = TkNewMenuName(menuPtr->interp,
windowNamePtr, menuPtr);
Tcl_IncrRefCount(newMenuName);
CloneMenu(menuPtr, newMenuName, normalPtr);
/*
* Now we can set the new menu instance to be the cascade
* entry of the parent's instance.
*/
newObjv[0] = Tcl_NewStringObj("-menu", -1);
newObjv[1] = newMenuName;
Tcl_IncrRefCount(newObjv[0]);
ConfigureMenuEntry(cascadeListPtr, 2, newObjv);
Tcl_DecrRefCount(normalPtr);
Tcl_DecrRefCount(newObjv[0]);
Tcl_DecrRefCount(newObjv[1]);
Tcl_DecrRefCount(windowNamePtr);
}
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;
}
}
Tcl_SetResult(interp, Tk_PathName(menuPtr->tkwin), TCL_STATIC);
return TCL_OK;
}
/*
*--------------------------------------------------------------
*
* MenuWidgetObjCmd --
*
* This function 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
MenuWidgetObjCmd(
ClientData clientData, /* Information about menu widget. */
Tcl_Interp *interp, /* Current interpreter. */
int objc, /* Number of arguments. */
Tcl_Obj *CONST objv[]) /* Argument strings. */
{
register TkMenu *menuPtr = (TkMenu *) clientData;
register TkMenuEntry *mePtr;
int result = TCL_OK;
int option;
if (objc < 2) {
Tcl_WrongNumArgs(interp, 1, objv, "option ?arg arg ...?");
return TCL_ERROR;
}
if (Tcl_GetIndexFromObj(interp, objv[1], menuOptions, "option", 0,
&option) != TCL_OK) {
return TCL_ERROR;
}
Tcl_Preserve((ClientData) menuPtr);
switch ((enum options) option) {
case MENU_ACTIVATE: {
int index;
if (objc != 3) {
Tcl_WrongNumArgs(interp, 2, objv, "index");
goto error;
}
if (TkGetMenuIndex(interp, menuPtr, objv[2], 0, &index) != TCL_OK) {
goto error;
}
if (menuPtr->active == index) {
goto done;
}
if ((index >= 0) && ((menuPtr->entries[index]->type==SEPARATOR_ENTRY)
|| (menuPtr->entries[index]->state == ENTRY_DISABLED))) {
index = -1;
}
result = TkActivateMenuEntry(menuPtr, index);
break;
}
case MENU_ADD:
if (objc < 3) {
Tcl_WrongNumArgs(interp, 2, objv, "type ?options?");
goto error;
}
if (MenuAddOrInsert(interp, menuPtr, NULL, objc-2, objv+2) != TCL_OK) {
goto error;
}
break;
case MENU_CGET: {
Tcl_Obj *resultPtr;
if (objc != 3) {
Tcl_WrongNumArgs(interp, 2, objv, "option");
goto error;
}
resultPtr = Tk_GetOptionValue(interp, (char *) menuPtr,
menuPtr->optionTablesPtr->menuOptionTable, objv[2],
menuPtr->tkwin);
if (resultPtr == NULL) {
goto error;
}
Tcl_SetObjResult(interp, resultPtr);
break;
}
case MENU_CLONE:
if ((objc < 3) || (objc > 4)) {
Tcl_WrongNumArgs(interp, 2, objv, "newMenuName ?menuType?");
goto error;
}
result = CloneMenu(menuPtr, objv[2], (objc == 3) ? NULL : objv[3]);
break;
case MENU_CONFIGURE: {
Tcl_Obj *resultPtr;
if (objc == 2) {
resultPtr = Tk_GetOptionInfo(interp, (char *) menuPtr,
menuPtr->optionTablesPtr->menuOptionTable, NULL,
menuPtr->tkwin);
if (resultPtr == NULL) {
result = TCL_ERROR;
} else {
result = TCL_OK;
Tcl_SetObjResult(interp, resultPtr);
}
} else if (objc == 3) {
resultPtr = Tk_GetOptionInfo(interp, (char *) menuPtr,
menuPtr->optionTablesPtr->menuOptionTable, objv[2],
menuPtr->tkwin);
if (resultPtr == NULL) {
result = TCL_ERROR;
} else {
result = TCL_OK;
Tcl_SetObjResult(interp, resultPtr);
}
} else {
result = ConfigureMenu(interp, menuPtr, objc - 2, objv + 2);
}
if (result != TCL_OK) {
goto error;
}
break;
}
case MENU_DELETE: {
int first, last;
if ((objc != 3) && (objc != 4)) {
Tcl_WrongNumArgs(interp, 2, objv, "first ?last?");
goto error;
}
/*
* If 'first' explicitly refers to past the end of the menu, we don't
* do anything. [Bug 220950]
*/
if (isdigit(UCHAR(Tcl_GetString(objv[2])[0]))
&& Tcl_GetIntFromObj(NULL, objv[2], &first) == TCL_OK) {
if (first >= menuPtr->numEntries) {
goto done;
}
} else if (TkGetMenuIndex(interp,menuPtr,objv[2],0,&first) != TCL_OK){
goto error;
}
if (objc == 3) {
last = first;
} else if (TkGetMenuIndex(interp,menuPtr,objv[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);
break;
}
case MENU_ENTRYCGET: {
int index;
Tcl_Obj *resultPtr;
if (objc != 4) {
Tcl_WrongNumArgs(interp, 2, objv, "index option");
goto error;
}
if (TkGetMenuIndex(interp, menuPtr, objv[2], 0, &index) != TCL_OK) {
goto error;
}
if (index < 0) {
goto done;
}
mePtr = menuPtr->entries[index];
Tcl_Preserve((ClientData) mePtr);
resultPtr = Tk_GetOptionValue(interp, (char *) mePtr,
mePtr->optionTable, objv[3], menuPtr->tkwin);
Tcl_Release((ClientData) mePtr);
if (resultPtr == NULL) {
goto error;
}
Tcl_SetObjResult(interp, resultPtr);
break;
}
case MENU_ENTRYCONFIGURE: {
int index;
Tcl_Obj *resultPtr;
if (objc < 3) {
Tcl_WrongNumArgs(interp, 2, objv, "index ?option value ...?");
goto error;
}
if (TkGetMenuIndex(interp, menuPtr, objv[2], 0, &index) != TCL_OK) {
goto error;
}
if (index < 0) {
goto done;
}
mePtr = menuPtr->entries[index];
Tcl_Preserve((ClientData) mePtr);
if (objc == 3) {
resultPtr = Tk_GetOptionInfo(interp, (char *) mePtr,
mePtr->optionTable, NULL, menuPtr->tkwin);
if (resultPtr == NULL) {
result = TCL_ERROR;
} else {
result = TCL_OK;
Tcl_SetObjResult(interp, resultPtr);
}
} else if (objc == 4) {
resultPtr = Tk_GetOptionInfo(interp, (char *) mePtr,
mePtr->optionTable, objv[3], menuPtr->tkwin);
if (resultPtr == NULL) {
result = TCL_ERROR;
} else {
result = TCL_OK;
Tcl_SetObjResult(interp, resultPtr);
}
} else {
result = ConfigureMenuCloneEntries(interp, menuPtr, index,
objc-3, objv+3);
}
Tcl_Release((ClientData) mePtr);
break;
}
case MENU_INDEX: {
int index;
if (objc != 3) {
Tcl_WrongNumArgs(interp, 2, objv, "string");
goto error;
}
if (TkGetMenuIndex(interp, menuPtr, objv[2], 0, &index) != TCL_OK) {
goto error;
}
if (index < 0) {
Tcl_SetResult(interp, "none", TCL_STATIC);
} else {
Tcl_SetIntObj(Tcl_GetObjResult(interp), index);
}
break;
}
case MENU_INSERT:
if (objc < 4) {
Tcl_WrongNumArgs(interp, 2, objv, "index type ?options?");
goto error;
}
if (MenuAddOrInsert(interp,menuPtr,objv[2],objc-3,objv+3) != TCL_OK) {
goto error;
}
break;
case MENU_INVOKE: {
int index;
if (objc != 3) {
Tcl_WrongNumArgs(interp, 2, objv, "index");
goto error;
}
if (TkGetMenuIndex(interp, menuPtr, objv[2], 0, &index) != TCL_OK) {
goto error;
}
if (index < 0) {
goto done;
}
result = TkInvokeMenu(interp, menuPtr, index);
break;
}
case MENU_POST: {
int x, y;
if (objc != 4) {
Tcl_WrongNumArgs(interp, 2, objv, "x y");
goto error;
}
if ((Tcl_GetIntFromObj(interp, objv[2], &x) != TCL_OK)
|| (Tcl_GetIntFromObj(interp, objv[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);
}
break;
}
case MENU_POSTCASCADE: {
int index;
if (objc != 3) {
Tcl_WrongNumArgs(interp, 2, objv, "index");
goto error;
}
if (TkGetMenuIndex(interp, menuPtr, objv[2], 0, &index) != TCL_OK) {
goto error;
}
if ((index < 0) || (menuPtr->entries[index]->type != CASCADE_ENTRY)) {
result = TkPostSubmenu(interp, menuPtr, NULL);
} else {
result = TkPostSubmenu(interp, menuPtr, menuPtr->entries[index]);
}
break;
}
case MENU_TYPE: {
int index;
if (objc != 3) {
Tcl_WrongNumArgs(interp, 2, objv, "index");
goto error;
}
if (TkGetMenuIndex(interp, menuPtr, objv[2], 0, &index) != TCL_OK) {
goto error;
}
if (index < 0) {
goto done;
}
if (menuPtr->entries[index]->type == TEAROFF_ENTRY) {
Tcl_SetResult(interp, "tearoff", TCL_STATIC);
} else {
Tcl_SetStringObj(Tcl_GetObjResult(interp),
menuEntryTypeStrings[menuPtr->entries[index]->type], -1);
}
break;
}
case MENU_UNPOST:
if (objc != 2) {
Tcl_WrongNumArgs(interp, 2, objv, NULL);
goto error;
}
Tk_UnmapWindow(menuPtr->tkwin);
result = TkPostSubmenu(interp, menuPtr, NULL);
break;
case MENU_XPOSITION:
if (objc != 3) {
Tcl_WrongNumArgs(interp, 2, objv, "index");
goto error;
}
result = MenuDoXPosition(interp, menuPtr, objv[2]);