1287 lines
34 KiB
C
1287 lines
34 KiB
C
/*
|
||
* tkConfig.c --
|
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*
|
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* This file contains the Tk_ConfigureWidget procedure.
|
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*
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* Copyright (c) 1990-1994 The Regents of the University of California.
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* Copyright (c) 1994-1995 Sun Microsystems, Inc.
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*
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* See the file "license.terms" for information on usage and redistribution
|
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* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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*
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* SCCS: @(#) tkConfig.c 1.53 96/04/26 10:29:31
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*/
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|
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#include "tkPort.h"
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#include "tk.h"
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/*
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* Values for "flags" field of Tk_ConfigSpec structures. Be sure
|
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* to coordinate these values with those defined in tk.h
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* (TK_CONFIG_COLOR_ONLY, etc.). There must not be overlap!
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*
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* INIT - Non-zero means (char *) things have been
|
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* converted to Tk_Uid's.
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*/
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#define INIT 0x20
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|
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/*
|
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* Forward declarations for procedures defined later in this file:
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*/
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static int DoConfig _ANSI_ARGS_((Tcl_Interp *interp,
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Tk_Window tkwin, Tk_ConfigSpec *specPtr,
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Tk_Uid value, int valueIsUid, char *widgRec));
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static Tk_ConfigSpec * FindConfigSpec _ANSI_ARGS_((Tcl_Interp *interp,
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Tk_ConfigSpec *specs, char *argvName,
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int needFlags, int hateFlags));
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static char * FormatConfigInfo _ANSI_ARGS_((Tcl_Interp *interp,
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Tk_Window tkwin, Tk_ConfigSpec *specPtr,
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char *widgRec));
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static char * FormatConfigValue _ANSI_ARGS_((Tcl_Interp *interp,
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Tk_Window tkwin, Tk_ConfigSpec *specPtr,
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char *widgRec, char *buffer,
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Tcl_FreeProc **freeProcPtr));
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#ifdef STk_CODE
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#define DEFAULT_STK_ENV "#.(global-environment)"
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/* This UGLY code is used only for menus items.
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* It saves in the static variable menu_addr the address of the menu item
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* we are configuring. This addresse is necessary for storing the closure
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* associated to the "command" of a menu item. Address will be used to associate
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* a unique signature to this item.
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*/
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static void *menu_addr = NULL;
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int
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Tk_Menu_ConfigureWidget(interp, addr, tkwin, specs, argc, argv, widgRec, flags)
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Tcl_Interp *interp; /* Interpreter for error reporting. */
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void * addr; /* address of the menu item */
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Tk_Window tkwin; /* Window containing widget (needed to
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* set up X resources). */
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Tk_ConfigSpec *specs; /* Describes legal options. */
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int argc; /* Number of elements in argv. */
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char **argv; /* Command-line options. */
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char *widgRec; /* Record whose fields are to be
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* modified. Values must be properly
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* initialized. */
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int flags; /* Used to specify additional flags
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* that must be present in config specs
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* for them to be considered. Also,
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* may have TK_CONFIG_ARGV_ONLY set. */
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{
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int res ;
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/* This is a fluid-let :-) */
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menu_addr = addr;
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res = Tk_ConfigureWidget(interp, tkwin, specs, argc, argv, widgRec, flags);
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menu_addr = NULL;
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return res;
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}
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#endif
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/*
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*--------------------------------------------------------------
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*
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* Tk_ConfigureWidget --
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*
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* Process command-line options and database options to
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* fill in fields of a widget record with resources and
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* other parameters.
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*
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* Results:
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* A standard Tcl return value. In case of an error,
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* interp->result will hold an error message.
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*
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* Side effects:
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* The fields of widgRec get filled in with information
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* from argc/argv and the option database. Old information
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* in widgRec's fields gets recycled.
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*
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*--------------------------------------------------------------
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*/
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int
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Tk_ConfigureWidget(interp, tkwin, specs, argc, argv, widgRec, flags)
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Tcl_Interp *interp; /* Interpreter for error reporting. */
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Tk_Window tkwin; /* Window containing widget (needed to
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* set up X resources). */
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Tk_ConfigSpec *specs; /* Describes legal options. */
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int argc; /* Number of elements in argv. */
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char **argv; /* Command-line options. */
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char *widgRec; /* Record whose fields are to be
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* modified. Values must be properly
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* initialized. */
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int flags; /* Used to specify additional flags
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* that must be present in config specs
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* for them to be considered. Also,
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* may have TK_CONFIG_ARGV_ONLY set. */
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{
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register Tk_ConfigSpec *specPtr;
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Tk_Uid value; /* Value of option from database. */
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int needFlags; /* Specs must contain this set of flags
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* or else they are not considered. */
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int hateFlags; /* If a spec contains any bits here, it's
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* not considered. */
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needFlags = flags & ~(TK_CONFIG_USER_BIT - 1);
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if (Tk_Depth(tkwin) <= 1) {
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hateFlags = TK_CONFIG_COLOR_ONLY;
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} else {
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hateFlags = TK_CONFIG_MONO_ONLY;
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}
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|
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/*
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* Pass one: scan through all the option specs, replacing strings
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* with Tk_Uids (if this hasn't been done already) and clearing
|
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* the TK_CONFIG_OPTION_SPECIFIED flags.
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*/
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for (specPtr = specs; specPtr->type != TK_CONFIG_END; specPtr++) {
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if (!(specPtr->specFlags & INIT) && (specPtr->argvName != NULL)) {
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if (specPtr->dbName != NULL) {
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specPtr->dbName = Tk_GetUid(specPtr->dbName);
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}
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if (specPtr->dbClass != NULL) {
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specPtr->dbClass = Tk_GetUid(specPtr->dbClass);
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}
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if (specPtr->defValue != NULL) {
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specPtr->defValue = Tk_GetUid(specPtr->defValue);
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}
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}
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specPtr->specFlags = (specPtr->specFlags & ~TK_CONFIG_OPTION_SPECIFIED)
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| INIT;
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}
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/*
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* Pass two: scan through all of the arguments, processing those
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* that match entries in the specs.
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*/
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for ( ; argc > 0; argc -= 2, argv += 2) {
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specPtr = FindConfigSpec(interp, specs, *argv, needFlags, hateFlags);
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if (specPtr == NULL) {
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return TCL_ERROR;
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}
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/*
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* Process the entry.
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*/
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if (argc < 2) {
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Tcl_AppendResult(interp, "value for \"", *argv,
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"\" missing", (char *) NULL);
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return TCL_ERROR;
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}
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if (DoConfig(interp, tkwin, specPtr, argv[1], 0, widgRec) != TCL_OK) {
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char msg[100];
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sprintf(msg, "\n (processing \"%.40s\" option)",
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specPtr->argvName);
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Tcl_AddErrorInfo(interp, msg);
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return TCL_ERROR;
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}
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specPtr->specFlags |= TK_CONFIG_OPTION_SPECIFIED;
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}
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/*
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* Pass three: scan through all of the specs again; if no
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* command-line argument matched a spec, then check for info
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* in the option database. If there was nothing in the
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* database, then use the default.
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*/
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if (!(flags & TK_CONFIG_ARGV_ONLY)) {
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for (specPtr = specs; specPtr->type != TK_CONFIG_END; specPtr++) {
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if ((specPtr->specFlags & TK_CONFIG_OPTION_SPECIFIED)
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|| (specPtr->argvName == NULL)
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|| (specPtr->type == TK_CONFIG_SYNONYM)) {
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continue;
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}
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if (((specPtr->specFlags & needFlags) != needFlags)
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|| (specPtr->specFlags & hateFlags)) {
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continue;
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}
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value = NULL;
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if (specPtr->dbName != NULL) {
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value = Tk_GetOption(tkwin, specPtr->dbName, specPtr->dbClass);
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}
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if (value != NULL) {
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if (DoConfig(interp, tkwin, specPtr, value, 1, widgRec) !=
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TCL_OK) {
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char msg[200];
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sprintf(msg, "\n (%s \"%.50s\" in widget \"%.50s\")",
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"database entry for",
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specPtr->dbName, Tk_PathName(tkwin));
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Tcl_AddErrorInfo(interp, msg);
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return TCL_ERROR;
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}
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} else {
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value = specPtr->defValue;
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if ((value != NULL) && !(specPtr->specFlags
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& TK_CONFIG_DONT_SET_DEFAULT)) {
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if (DoConfig(interp, tkwin, specPtr, value, 1, widgRec) !=
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TCL_OK) {
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char msg[200];
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sprintf(msg,
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"\n (%s \"%.50s\" in widget \"%.50s\")",
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"default value for",
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specPtr->dbName, Tk_PathName(tkwin));
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Tcl_AddErrorInfo(interp, msg);
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return TCL_ERROR;
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}
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}
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}
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}
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}
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return TCL_OK;
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}
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/*
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*--------------------------------------------------------------
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*
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* FindConfigSpec --
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*
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* Search through a table of configuration specs, looking for
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* one that matches a given argvName.
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*
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* Results:
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* The return value is a pointer to the matching entry, or NULL
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* if nothing matched. In that case an error message is left
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* in interp->result.
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*
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* Side effects:
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* None.
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*
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*--------------------------------------------------------------
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*/
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static Tk_ConfigSpec *
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FindConfigSpec(interp, specs, argvName, needFlags, hateFlags)
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Tcl_Interp *interp; /* Used for reporting errors. */
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Tk_ConfigSpec *specs; /* Pointer to table of configuration
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* specifications for a widget. */
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char *argvName; /* Name (suitable for use in a "config"
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* command) identifying particular option. */
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int needFlags; /* Flags that must be present in matching
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* entry. */
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int hateFlags; /* Flags that must NOT be present in
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* matching entry. */
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{
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register Tk_ConfigSpec *specPtr;
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register char c; /* First character of current argument. */
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Tk_ConfigSpec *matchPtr; /* Matching spec, or NULL. */
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size_t length;
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c = argvName[1];
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length = strlen(argvName);
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matchPtr = NULL;
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for (specPtr = specs; specPtr->type != TK_CONFIG_END; specPtr++) {
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if (specPtr->argvName == NULL) {
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continue;
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}
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if ((specPtr->argvName[1] != c)
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|| (strncmp(specPtr->argvName, argvName, length) != 0)) {
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continue;
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}
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if (((specPtr->specFlags & needFlags) != needFlags)
|
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|| (specPtr->specFlags & hateFlags)) {
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continue;
|
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}
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if (specPtr->argvName[length] == 0) {
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matchPtr = specPtr;
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goto gotMatch;
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}
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if (matchPtr != NULL) {
|
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Tcl_AppendResult(interp, "ambiguous option \"", argvName,
|
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"\"", (char *) NULL);
|
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return (Tk_ConfigSpec *) NULL;
|
||
}
|
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matchPtr = specPtr;
|
||
}
|
||
|
||
if (matchPtr == NULL) {
|
||
Tcl_AppendResult(interp, "unknown option \"", argvName,
|
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"\"", (char *) NULL);
|
||
return (Tk_ConfigSpec *) NULL;
|
||
}
|
||
|
||
/*
|
||
* Found a matching entry. If it's a synonym, then find the
|
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* entry that it's a synonym for.
|
||
*/
|
||
|
||
gotMatch:
|
||
specPtr = matchPtr;
|
||
if (specPtr->type == TK_CONFIG_SYNONYM) {
|
||
for (specPtr = specs; ; specPtr++) {
|
||
if (specPtr->type == TK_CONFIG_END) {
|
||
Tcl_AppendResult(interp,
|
||
"couldn't find synonym for option \"",
|
||
argvName, "\"", (char *) NULL);
|
||
return (Tk_ConfigSpec *) NULL;
|
||
}
|
||
if ((specPtr->dbName == matchPtr->dbName)
|
||
&& (specPtr->type != TK_CONFIG_SYNONYM)
|
||
&& ((specPtr->specFlags & needFlags) == needFlags)
|
||
&& !(specPtr->specFlags & hateFlags)) {
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
return specPtr;
|
||
}
|
||
|
||
/*
|
||
*--------------------------------------------------------------
|
||
*
|
||
* DoConfig --
|
||
*
|
||
* This procedure applies a single configuration option
|
||
* to a widget record.
|
||
*
|
||
* Results:
|
||
* A standard Tcl return value.
|
||
*
|
||
* Side effects:
|
||
* WidgRec is modified as indicated by specPtr and value.
|
||
* The old value is recycled, if that is appropriate for
|
||
* the value type.
|
||
*
|
||
*--------------------------------------------------------------
|
||
*/
|
||
|
||
static int
|
||
DoConfig(interp, tkwin, specPtr, value, valueIsUid, widgRec)
|
||
Tcl_Interp *interp; /* Interpreter for error reporting. */
|
||
Tk_Window tkwin; /* Window containing widget (needed to
|
||
* set up X resources). */
|
||
Tk_ConfigSpec *specPtr; /* Specifier to apply. */
|
||
char *value; /* Value to use to fill in widgRec. */
|
||
int valueIsUid; /* Non-zero means value is a Tk_Uid;
|
||
* zero means it's an ordinary string. */
|
||
char *widgRec; /* Record whose fields are to be
|
||
* modified. Values must be properly
|
||
* initialized. */
|
||
{
|
||
char *ptr;
|
||
Tk_Uid uid;
|
||
int nullValue;
|
||
|
||
nullValue = 0;
|
||
if ((*value == 0) && (specPtr->specFlags & TK_CONFIG_NULL_OK)) {
|
||
nullValue = 1;
|
||
}
|
||
|
||
do {
|
||
ptr = widgRec + specPtr->offset;
|
||
switch (specPtr->type) {
|
||
case TK_CONFIG_BOOLEAN:
|
||
if (Tcl_GetBoolean(interp, value, (int *) ptr) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
break;
|
||
case TK_CONFIG_INT:
|
||
if (Tcl_GetInt(interp, value, (int *) ptr) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
break;
|
||
case TK_CONFIG_DOUBLE:
|
||
if (Tcl_GetDouble(interp, value, (double *) ptr) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
break;
|
||
#ifdef STk_CODE
|
||
case TK_CONFIG_ENV: {
|
||
SCM p;
|
||
|
||
if (*value) {
|
||
if (!STk_valid_environment(value, &p)) {
|
||
Tcl_AppendResult(interp, "bad environment specification \"",
|
||
value, "\"", (char *) NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
if (p != NULL) {
|
||
/* add this environment to the callback table */
|
||
STk_add_callback(Tk_PathName(tkwin), specPtr->argvName, "", p);
|
||
}
|
||
}
|
||
goto String;
|
||
}
|
||
case TK_CONFIG_CLOSURE: {
|
||
char buffer[50], *s = "";
|
||
SCM p;
|
||
|
||
if (*value) {
|
||
if (!STk_valid_callback(value, &p)) {
|
||
BadSpec:
|
||
Tcl_AppendResult(interp, "bad closure specification \"",
|
||
value, "\"", (char *) NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
if (p != NULL) {
|
||
if (menu_addr != NULL) {
|
||
sprintf(buffer, "%lx", (unsigned long) menu_addr);
|
||
s = buffer;
|
||
}
|
||
|
||
/* add this closure to the callback table */
|
||
STk_add_callback(Tk_PathName(tkwin), specPtr->argvName, s, p);
|
||
}
|
||
}
|
||
}
|
||
/* NOBREAK */
|
||
/* And now continue to register this command as a string */
|
||
String: case TK_CONFIG_SINT:
|
||
case TK_CONFIG_SBOOLEAN:
|
||
case TK_CONFIG_BSTRING:
|
||
case TK_CONFIG_IMAGE:
|
||
#endif
|
||
case TK_CONFIG_STRING: {
|
||
char *old, *new;
|
||
|
||
if (nullValue) {
|
||
new = NULL;
|
||
} else {
|
||
new = (char *) ckalloc((unsigned) (strlen(value) + 1));
|
||
strcpy(new, value);
|
||
}
|
||
old = *((char **) ptr);
|
||
if (old != NULL) {
|
||
ckfree(old);
|
||
}
|
||
*((char **) ptr) = new;
|
||
break;
|
||
}
|
||
#ifdef STk_CODE
|
||
case TK_CONFIG_MENU: {
|
||
char *old, *new;
|
||
|
||
if (nullValue) {
|
||
new = NULL;
|
||
} else {
|
||
new = (char *) ckalloc((unsigned) (strlen(value) + 3));
|
||
new[0] = '#';
|
||
new[1] = '.';
|
||
strcpy(new+2, value);
|
||
}
|
||
old = *((char **) ptr);
|
||
if (old != NULL) {
|
||
ckfree(old);
|
||
}
|
||
*((char **) ptr) = new;
|
||
break;
|
||
}
|
||
|
||
#endif
|
||
case TK_CONFIG_UID:
|
||
if (nullValue) {
|
||
*((Tk_Uid *) ptr) = NULL;
|
||
} else {
|
||
uid = valueIsUid ? (Tk_Uid) value : Tk_GetUid(value);
|
||
*((Tk_Uid *) ptr) = uid;
|
||
}
|
||
break;
|
||
case TK_CONFIG_COLOR: {
|
||
XColor *newPtr, *oldPtr;
|
||
|
||
if (nullValue) {
|
||
newPtr = NULL;
|
||
} else {
|
||
uid = valueIsUid ? (Tk_Uid) value : Tk_GetUid(value);
|
||
newPtr = Tk_GetColor(interp, tkwin, uid);
|
||
if (newPtr == NULL) {
|
||
return TCL_ERROR;
|
||
}
|
||
}
|
||
oldPtr = *((XColor **) ptr);
|
||
if (oldPtr != NULL) {
|
||
Tk_FreeColor(oldPtr);
|
||
}
|
||
*((XColor **) ptr) = newPtr;
|
||
break;
|
||
}
|
||
case TK_CONFIG_FONT: {
|
||
Tk_Font new;
|
||
|
||
if (nullValue) {
|
||
new = NULL;
|
||
} else {
|
||
new = Tk_GetFont(interp, tkwin, value);
|
||
if (new == NULL) {
|
||
return TCL_ERROR;
|
||
}
|
||
}
|
||
Tk_FreeFont(*((Tk_Font *) ptr));
|
||
*((Tk_Font *) ptr) = new;
|
||
break;
|
||
}
|
||
case TK_CONFIG_BITMAP: {
|
||
Pixmap new, old;
|
||
|
||
if (nullValue) {
|
||
new = None;
|
||
} else {
|
||
uid = valueIsUid ? (Tk_Uid) value : Tk_GetUid(value);
|
||
new = Tk_GetBitmap(interp, tkwin, uid);
|
||
if (new == None) {
|
||
return TCL_ERROR;
|
||
}
|
||
}
|
||
old = *((Pixmap *) ptr);
|
||
if (old != None) {
|
||
Tk_FreeBitmap(Tk_Display(tkwin), old);
|
||
}
|
||
*((Pixmap *) ptr) = new;
|
||
break;
|
||
}
|
||
case TK_CONFIG_BORDER: {
|
||
Tk_3DBorder new, old;
|
||
|
||
if (nullValue) {
|
||
new = NULL;
|
||
} else {
|
||
uid = valueIsUid ? (Tk_Uid) value : Tk_GetUid(value);
|
||
new = Tk_Get3DBorder(interp, tkwin, uid);
|
||
if (new == NULL) {
|
||
return TCL_ERROR;
|
||
}
|
||
}
|
||
old = *((Tk_3DBorder *) ptr);
|
||
if (old != NULL) {
|
||
Tk_Free3DBorder(old);
|
||
}
|
||
*((Tk_3DBorder *) ptr) = new;
|
||
break;
|
||
}
|
||
case TK_CONFIG_RELIEF:
|
||
uid = valueIsUid ? (Tk_Uid) value : Tk_GetUid(value);
|
||
if (Tk_GetRelief(interp, uid, (int *) ptr) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
break;
|
||
case TK_CONFIG_CURSOR:
|
||
case TK_CONFIG_ACTIVE_CURSOR: {
|
||
Tk_Cursor new, old;
|
||
|
||
if (nullValue) {
|
||
new = None;
|
||
} else {
|
||
uid = valueIsUid ? (Tk_Uid) value : Tk_GetUid(value);
|
||
new = Tk_GetCursor(interp, tkwin, uid);
|
||
if (new == None) {
|
||
return TCL_ERROR;
|
||
}
|
||
}
|
||
old = *((Tk_Cursor *) ptr);
|
||
if (old != None) {
|
||
Tk_FreeCursor(Tk_Display(tkwin), old);
|
||
}
|
||
*((Tk_Cursor *) ptr) = new;
|
||
if (specPtr->type == TK_CONFIG_ACTIVE_CURSOR) {
|
||
Tk_DefineCursor(tkwin, new);
|
||
}
|
||
break;
|
||
}
|
||
case TK_CONFIG_JUSTIFY:
|
||
uid = valueIsUid ? (Tk_Uid) value : Tk_GetUid(value);
|
||
if (Tk_GetJustify(interp, uid, (Tk_Justify *) ptr) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
break;
|
||
case TK_CONFIG_ANCHOR:
|
||
uid = valueIsUid ? (Tk_Uid) value : Tk_GetUid(value);
|
||
if (Tk_GetAnchor(interp, uid, (Tk_Anchor *) ptr) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
break;
|
||
case TK_CONFIG_CAP_STYLE:
|
||
uid = valueIsUid ? (Tk_Uid) value : Tk_GetUid(value);
|
||
if (Tk_GetCapStyle(interp, uid, (int *) ptr) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
break;
|
||
case TK_CONFIG_JOIN_STYLE:
|
||
uid = valueIsUid ? (Tk_Uid) value : Tk_GetUid(value);
|
||
if (Tk_GetJoinStyle(interp, uid, (int *) ptr) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
break;
|
||
case TK_CONFIG_PIXELS:
|
||
if (Tk_GetPixels(interp, tkwin, value, (int *) ptr)
|
||
!= TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
break;
|
||
case TK_CONFIG_MM:
|
||
if (Tk_GetScreenMM(interp, tkwin, value, (double *) ptr)
|
||
!= TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
break;
|
||
case TK_CONFIG_WINDOW: {
|
||
Tk_Window tkwin2;
|
||
|
||
if (nullValue) {
|
||
tkwin2 = NULL;
|
||
} else {
|
||
tkwin2 = Tk_NameToWindow(interp, value, tkwin);
|
||
if (tkwin2 == NULL) {
|
||
return TCL_ERROR;
|
||
}
|
||
}
|
||
*((Tk_Window *) ptr) = tkwin2;
|
||
break;
|
||
}
|
||
case TK_CONFIG_CUSTOM:
|
||
if ((*specPtr->customPtr->parseProc)(
|
||
specPtr->customPtr->clientData, interp, tkwin,
|
||
value, widgRec, specPtr->offset) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
break;
|
||
default: {
|
||
sprintf(interp->result, "bad config table: unknown type %d",
|
||
specPtr->type);
|
||
return TCL_ERROR;
|
||
}
|
||
}
|
||
specPtr++;
|
||
} while ((specPtr->argvName == NULL) && (specPtr->type != TK_CONFIG_END));
|
||
return TCL_OK;
|
||
}
|
||
|
||
/*
|
||
*--------------------------------------------------------------
|
||
*
|
||
* Tk_ConfigureInfo --
|
||
*
|
||
* Return information about the configuration options
|
||
* for a window, and their current values.
|
||
*
|
||
* Results:
|
||
* Always returns TCL_OK. Interp->result will be modified
|
||
* hold a description of either a single configuration option
|
||
* available for "widgRec" via "specs", or all the configuration
|
||
* options available. In the "all" case, the result will
|
||
* available for "widgRec" via "specs". The result will
|
||
* be a list, each of whose entries describes one option.
|
||
* Each entry will itself be a list containing the option's
|
||
* name for use on command lines, database name, database
|
||
* class, default value, and current value (empty string
|
||
* if none). For options that are synonyms, the list will
|
||
* contain only two values: name and synonym name. If the
|
||
* "name" argument is non-NULL, then the only information
|
||
* returned is that for the named argument (i.e. the corresponding
|
||
* entry in the overall list is returned).
|
||
*
|
||
* Side effects:
|
||
* None.
|
||
*
|
||
*--------------------------------------------------------------
|
||
*/
|
||
|
||
int
|
||
Tk_ConfigureInfo(interp, tkwin, specs, widgRec, argvName, flags)
|
||
Tcl_Interp *interp; /* Interpreter for error reporting. */
|
||
Tk_Window tkwin; /* Window corresponding to widgRec. */
|
||
Tk_ConfigSpec *specs; /* Describes legal options. */
|
||
char *widgRec; /* Record whose fields contain current
|
||
* values for options. */
|
||
char *argvName; /* If non-NULL, indicates a single option
|
||
* whose info is to be returned. Otherwise
|
||
* info is returned for all options. */
|
||
int flags; /* Used to specify additional flags
|
||
* that must be present in config specs
|
||
* for them to be considered. */
|
||
{
|
||
register Tk_ConfigSpec *specPtr;
|
||
int needFlags, hateFlags;
|
||
char *list;
|
||
#ifdef STk_CODE
|
||
char *leader = "(";
|
||
#else
|
||
char *leader = "{";
|
||
#endif
|
||
|
||
needFlags = flags & ~(TK_CONFIG_USER_BIT - 1);
|
||
if (Tk_Depth(tkwin) <= 1) {
|
||
hateFlags = TK_CONFIG_COLOR_ONLY;
|
||
} else {
|
||
hateFlags = TK_CONFIG_MONO_ONLY;
|
||
}
|
||
|
||
/*
|
||
* If information is only wanted for a single configuration
|
||
* spec, then handle that one spec specially.
|
||
*/
|
||
|
||
Tcl_SetResult(interp, (char *) NULL, TCL_STATIC);
|
||
if (argvName != NULL) {
|
||
specPtr = FindConfigSpec(interp, specs, argvName, needFlags,
|
||
hateFlags);
|
||
if (specPtr == NULL) {
|
||
return TCL_ERROR;
|
||
}
|
||
interp->result = FormatConfigInfo(interp, tkwin, specPtr, widgRec);
|
||
interp->freeProc = TCL_DYNAMIC;
|
||
return TCL_OK;
|
||
}
|
||
|
||
/*
|
||
* Loop through all the specs, creating a big list with all
|
||
* their information.
|
||
*/
|
||
#ifdef STk_CODE
|
||
Tcl_AppendResult(interp, "(", NULL);
|
||
#endif
|
||
for (specPtr = specs; specPtr->type != TK_CONFIG_END; specPtr++) {
|
||
if ((argvName != NULL) && (specPtr->argvName != argvName)) {
|
||
continue;
|
||
}
|
||
if (((specPtr->specFlags & needFlags) != needFlags)
|
||
|| (specPtr->specFlags & hateFlags)) {
|
||
continue;
|
||
}
|
||
if (specPtr->argvName == NULL) {
|
||
continue;
|
||
}
|
||
list = FormatConfigInfo(interp, tkwin, specPtr, widgRec);
|
||
#ifdef STk_CODE
|
||
Tcl_AppendResult(interp, leader, list, ")", (char *) NULL);
|
||
ckfree(list);
|
||
leader = " (";
|
||
#else
|
||
Tcl_AppendResult(interp, leader, list, "}", (char *) NULL);
|
||
ckfree(list);
|
||
leader = " {";
|
||
#endif
|
||
}
|
||
#ifdef STk_CODE
|
||
Tcl_AppendResult(interp, ")", NULL);
|
||
#endif
|
||
return TCL_OK;
|
||
}
|
||
|
||
/*
|
||
*--------------------------------------------------------------
|
||
*
|
||
* FormatConfigInfo --
|
||
*
|
||
* Create a valid Tcl list holding the configuration information
|
||
* for a single configuration option.
|
||
*
|
||
* Results:
|
||
* A Tcl list, dynamically allocated. The caller is expected to
|
||
* arrange for this list to be freed eventually.
|
||
*
|
||
* Side effects:
|
||
* Memory is allocated.
|
||
*
|
||
*--------------------------------------------------------------
|
||
*/
|
||
|
||
static char *
|
||
FormatConfigInfo(interp, tkwin, specPtr, widgRec)
|
||
Tcl_Interp *interp; /* Interpreter to use for things
|
||
* like floating-point precision. */
|
||
Tk_Window tkwin; /* Window corresponding to widget. */
|
||
register Tk_ConfigSpec *specPtr; /* Pointer to information describing
|
||
* option. */
|
||
char *widgRec; /* Pointer to record holding current
|
||
* values of info for widget. */
|
||
{
|
||
char *argv[6], *result;
|
||
#ifdef STk_CODE
|
||
# define MAX_BUFFER 200
|
||
char buffer[MAX_BUFFER], dflt[MAX_BUFFER];
|
||
size_t len;
|
||
#else
|
||
char buffer[200];
|
||
#endif
|
||
Tcl_FreeProc *freeProc = (Tcl_FreeProc *) NULL;
|
||
|
||
argv[0] = specPtr->argvName;
|
||
argv[1] = specPtr->dbName;
|
||
argv[2] = specPtr->dbClass;
|
||
argv[3] = specPtr->defValue;
|
||
if (specPtr->type == TK_CONFIG_SYNONYM) {
|
||
#ifdef STk_CODE
|
||
result = ckalloc(strlen(argv[0]) + strlen(argv [1]) + 4);
|
||
sprintf(result, ":%s \"%s\"", argv[0]+1, argv [1]);
|
||
return result;
|
||
#else
|
||
return Tcl_Merge(2, argv);
|
||
#endif
|
||
}
|
||
argv[4] = FormatConfigValue(interp, tkwin, specPtr, widgRec, buffer,
|
||
&freeProc);
|
||
if (argv[1] == NULL) {
|
||
argv[1] = "";
|
||
}
|
||
if (argv[2] == NULL) {
|
||
argv[2] = "";
|
||
}
|
||
#ifdef STk_CODE
|
||
/*
|
||
* Default value of an option (the one at index 3) can contain weird
|
||
* characters (e.g. fonts can contain '#'). Quote it if necessary.
|
||
*/
|
||
|
||
switch (specPtr->type) {
|
||
case TK_CONFIG_BOOLEAN:
|
||
case TK_CONFIG_SBOOLEAN:
|
||
case TK_CONFIG_INT:
|
||
case TK_CONFIG_DOUBLE:
|
||
case TK_CONFIG_SINT:
|
||
case TK_CONFIG_MENU:
|
||
case TK_CONFIG_PIXELS:
|
||
case TK_CONFIG_MM:
|
||
case TK_CONFIG_CUSTOM: if (argv[3] == NULL)
|
||
argv[3] = "\"\"";
|
||
break;
|
||
case TK_CONFIG_ENV: /* The Default environment is always the global 1 */
|
||
argv[3] = DEFAULT_STK_ENV;
|
||
break;
|
||
case TK_CONFIG_IMAGE:
|
||
case TK_CONFIG_CLOSURE: if (argv[3] == NULL || argv[3][0] == '\0')
|
||
argv[3] = "\"\"";
|
||
break;
|
||
default: if (argv[3] == NULL)
|
||
argv[3] = "\"\"";
|
||
else {
|
||
sprintf(dflt, "\"%s\"", argv[3]);
|
||
argv[3] = dflt;
|
||
}
|
||
}
|
||
|
||
if (argv[4] == NULL) {
|
||
argv[4] = "\"\"";
|
||
}
|
||
|
||
len = strlen(argv[0])+strlen(argv[1])+strlen(argv[2])+
|
||
strlen(argv[3])+strlen(argv[4]) + 9; /* 4 spaces, 4 quotes and a null */
|
||
|
||
/* copy argv array in the result string and subsitute "-" by ":"
|
||
* in option name. Quote also the name and the class of the
|
||
* Qutotication is a little bit simplistic here, but those parameters
|
||
* are identifier (a priori)
|
||
*/
|
||
result = ckalloc(len);
|
||
sprintf(result, ":%s \"%s\" \"%s\" %s %s",
|
||
argv[0]+1,argv[1],argv[2],argv[3],argv[4]);
|
||
#else
|
||
if (argv[3] == NULL) {
|
||
argv[3] = "";
|
||
}
|
||
if (argv[4] == NULL) {
|
||
argv[4] = "";
|
||
}
|
||
result = Tcl_Merge(5, argv);
|
||
#endif
|
||
if (freeProc != NULL) {
|
||
if ((freeProc == TCL_DYNAMIC) || (freeProc == (Tcl_FreeProc *) free)) {
|
||
ckfree(argv[4]);
|
||
} else {
|
||
(*freeProc)(argv[4]);
|
||
}
|
||
}
|
||
return result;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* FormatConfigValue --
|
||
*
|
||
* This procedure formats the current value of a configuration
|
||
* option.
|
||
*
|
||
* Results:
|
||
* The return value is the formatted value of the option given
|
||
* by specPtr and widgRec. If the value is static, so that it
|
||
* need not be freed, *freeProcPtr will be set to NULL; otherwise
|
||
* *freeProcPtr will be set to the address of a procedure to
|
||
* free the result, and the caller must invoke this procedure
|
||
* when it is finished with the result.
|
||
*
|
||
* Side effects:
|
||
* None.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
static char *
|
||
FormatConfigValue(interp, tkwin, specPtr, widgRec, buffer, freeProcPtr)
|
||
Tcl_Interp *interp; /* Interpreter for use in real conversions. */
|
||
Tk_Window tkwin; /* Window corresponding to widget. */
|
||
Tk_ConfigSpec *specPtr; /* Pointer to information describing option.
|
||
* Must not point to a synonym option. */
|
||
char *widgRec; /* Pointer to record holding current
|
||
* values of info for widget. */
|
||
char *buffer; /* Static buffer to use for small values.
|
||
* Must have at least 200 bytes of storage. */
|
||
Tcl_FreeProc **freeProcPtr; /* Pointer to word to fill in with address
|
||
* of procedure to free the result, or NULL
|
||
* if result is static. */
|
||
{
|
||
char *ptr, *result;
|
||
|
||
*freeProcPtr = NULL;
|
||
ptr = widgRec + specPtr->offset;
|
||
result = "";
|
||
switch (specPtr->type) {
|
||
case TK_CONFIG_BOOLEAN:
|
||
#ifdef STk_CODE
|
||
/* NO BREAK */
|
||
case TK_CONFIG_SBOOLEAN:
|
||
return (*((int *) ptr) == 0) ? "#f" : "#t";
|
||
#else
|
||
if (*((int *) ptr) == 0) {
|
||
result = "0";
|
||
} else {
|
||
result = "1";
|
||
}
|
||
break;
|
||
#endif
|
||
case TK_CONFIG_INT:
|
||
sprintf(buffer, "%d", *((int *) ptr));
|
||
#ifdef STk_CODE
|
||
return buffer;
|
||
#else
|
||
result = buffer;
|
||
break;
|
||
#endif
|
||
case TK_CONFIG_DOUBLE:
|
||
Tcl_PrintDouble(interp, *((double *) ptr), buffer);
|
||
#ifdef STk_CODE
|
||
return buffer;
|
||
#else
|
||
result = buffer;
|
||
break;
|
||
#endif
|
||
#ifdef STk_CODE
|
||
case TK_CONFIG_SINT:
|
||
result = (*(char **) ptr);
|
||
if (result == NULL) result = "0";
|
||
return result;
|
||
case TK_CONFIG_MENU:
|
||
result = (*(char **) ptr);
|
||
if (result == NULL) result = "#f";
|
||
return result;
|
||
case TK_CONFIG_ENV:
|
||
result = (*(char **) ptr);
|
||
if (result == NULL || *result == 0) {
|
||
result = DEFAULT_STK_ENV;
|
||
}
|
||
return result;
|
||
case TK_CONFIG_CLOSURE:
|
||
result = (*(char **) ptr);
|
||
if (result == NULL) {
|
||
result = "";
|
||
break;
|
||
}
|
||
else {
|
||
return result;
|
||
}
|
||
case TK_CONFIG_IMAGE:
|
||
result = (*(char **) ptr);
|
||
if (result == NULL)
|
||
return "\"\"";
|
||
else {
|
||
sprintf(buffer, "#.|%s|", result);
|
||
return buffer;
|
||
}
|
||
case TK_CONFIG_BSTRING:
|
||
/* NO BREAK */
|
||
#endif
|
||
case TK_CONFIG_STRING:
|
||
result = (*(char **) ptr);
|
||
if (result == NULL) {
|
||
result = "";
|
||
}
|
||
break;
|
||
case TK_CONFIG_UID: {
|
||
Tk_Uid uid = *((Tk_Uid *) ptr);
|
||
if (uid != NULL) {
|
||
result = uid;
|
||
}
|
||
break;
|
||
}
|
||
case TK_CONFIG_COLOR: {
|
||
XColor *colorPtr = *((XColor **) ptr);
|
||
if (colorPtr != NULL) {
|
||
result = Tk_NameOfColor(colorPtr);
|
||
}
|
||
break;
|
||
}
|
||
case TK_CONFIG_FONT: {
|
||
Tk_Font tkfont = *((Tk_Font *) ptr);
|
||
if (tkfont != NULL) {
|
||
result = Tk_NameOfFont(tkfont);
|
||
}
|
||
break;
|
||
}
|
||
case TK_CONFIG_BITMAP: {
|
||
Pixmap pixmap = *((Pixmap *) ptr);
|
||
if (pixmap != None) {
|
||
result = Tk_NameOfBitmap(Tk_Display(tkwin), pixmap);
|
||
}
|
||
break;
|
||
}
|
||
case TK_CONFIG_BORDER: {
|
||
Tk_3DBorder border = *((Tk_3DBorder *) ptr);
|
||
if (border != NULL) {
|
||
result = Tk_NameOf3DBorder(border);
|
||
}
|
||
break;
|
||
}
|
||
case TK_CONFIG_RELIEF:
|
||
result = Tk_NameOfRelief(*((int *) ptr));
|
||
break;
|
||
case TK_CONFIG_CURSOR:
|
||
case TK_CONFIG_ACTIVE_CURSOR: {
|
||
Tk_Cursor cursor = *((Tk_Cursor *) ptr);
|
||
if (cursor != None) {
|
||
result = Tk_NameOfCursor(Tk_Display(tkwin), cursor);
|
||
}
|
||
break;
|
||
}
|
||
case TK_CONFIG_JUSTIFY:
|
||
result = Tk_NameOfJustify(*((Tk_Justify *) ptr));
|
||
break;
|
||
case TK_CONFIG_ANCHOR:
|
||
result = Tk_NameOfAnchor(*((Tk_Anchor *) ptr));
|
||
break;
|
||
case TK_CONFIG_CAP_STYLE:
|
||
result = Tk_NameOfCapStyle(*((int *) ptr));
|
||
break;
|
||
case TK_CONFIG_JOIN_STYLE:
|
||
result = Tk_NameOfJoinStyle(*((int *) ptr));
|
||
break;
|
||
case TK_CONFIG_PIXELS:
|
||
sprintf(buffer, "%d", *((int *) ptr));
|
||
#ifdef STk_CODE
|
||
return buffer;
|
||
#else
|
||
result = buffer;
|
||
break;
|
||
#endif
|
||
case TK_CONFIG_MM:
|
||
Tcl_PrintDouble(interp, *((double *) ptr), buffer);
|
||
#ifdef STk_CODE
|
||
return buffer;
|
||
#else
|
||
result = buffer;
|
||
break;
|
||
#endif
|
||
case TK_CONFIG_WINDOW: {
|
||
Tk_Window tkwin;
|
||
|
||
tkwin = *((Tk_Window *) ptr);
|
||
if (tkwin != NULL) {
|
||
result = Tk_PathName(tkwin);
|
||
}
|
||
break;
|
||
}
|
||
case TK_CONFIG_CUSTOM:
|
||
result = (*specPtr->customPtr->printProc)(
|
||
specPtr->customPtr->clientData, tkwin, widgRec,
|
||
specPtr->offset, freeProcPtr);
|
||
#ifdef STk_CODE
|
||
return result;
|
||
#endif
|
||
break;
|
||
default:
|
||
result = "?? unknown type ??";
|
||
}
|
||
#ifdef STk_CODE
|
||
/* result contain a value which must be converted to a string */
|
||
if (result == NULL) {
|
||
return "\"\"";
|
||
}
|
||
else {
|
||
register char *s, *d;
|
||
size_t len;
|
||
char *r = buffer;
|
||
Tcl_FreeProc *oldFree = *freeProcPtr;
|
||
|
||
*freeProcPtr = (Tcl_FreeProc *) NULL;
|
||
len = strlen(result);
|
||
|
||
if (len > (200/2)-3) {
|
||
r = ckalloc(len * 2 + 3); /* worst overestimation */
|
||
*freeProcPtr = (Tcl_FreeProc *) free;
|
||
}
|
||
|
||
d = r; *d++ = '"';
|
||
for (s = result; *s; s++, d++) {
|
||
if (*s == '"' || *s == '\\') *d++ = '\\';
|
||
*d = *s;
|
||
}
|
||
*d++ = '"';
|
||
*d = '\0';
|
||
|
||
if (oldFree != NULL) {
|
||
/*
|
||
* oldFree could be non NULL iff we have TK_CONFIG_CUSTOM before.
|
||
* In this case result points something which must be unallocated
|
||
*
|
||
*/
|
||
if (oldFree == (Tcl_FreeProc *) free) {
|
||
ckfree(result);
|
||
} else {
|
||
(*oldFree)(result);
|
||
}
|
||
}
|
||
return r;
|
||
}
|
||
#else
|
||
return result;
|
||
#endif
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* Tk_ConfigureValue --
|
||
*
|
||
* This procedure returns the current value of a configuration
|
||
* option for a widget.
|
||
*
|
||
* Results:
|
||
* The return value is a standard Tcl completion code (TCL_OK or
|
||
* TCL_ERROR). Interp->result will be set to hold either the value
|
||
* of the option given by argvName (if TCL_OK is returned) or
|
||
* an error message (if TCL_ERROR is returned).
|
||
*
|
||
* Side effects:
|
||
* None.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
int
|
||
Tk_ConfigureValue(interp, tkwin, specs, widgRec, argvName, flags)
|
||
Tcl_Interp *interp; /* Interpreter for error reporting. */
|
||
Tk_Window tkwin; /* Window corresponding to widgRec. */
|
||
Tk_ConfigSpec *specs; /* Describes legal options. */
|
||
char *widgRec; /* Record whose fields contain current
|
||
* values for options. */
|
||
char *argvName; /* Gives the command-line name for the
|
||
* option whose value is to be returned. */
|
||
int flags; /* Used to specify additional flags
|
||
* that must be present in config specs
|
||
* for them to be considered. */
|
||
{
|
||
Tk_ConfigSpec *specPtr;
|
||
int needFlags, hateFlags;
|
||
|
||
needFlags = flags & ~(TK_CONFIG_USER_BIT - 1);
|
||
if (Tk_Depth(tkwin) <= 1) {
|
||
hateFlags = TK_CONFIG_COLOR_ONLY;
|
||
} else {
|
||
hateFlags = TK_CONFIG_MONO_ONLY;
|
||
}
|
||
specPtr = FindConfigSpec(interp, specs, argvName, needFlags, hateFlags);
|
||
if (specPtr == NULL) {
|
||
return TCL_ERROR;
|
||
}
|
||
interp->result = FormatConfigValue(interp, tkwin, specPtr, widgRec,
|
||
interp->result, &interp->freeProc);
|
||
return TCL_OK;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* Tk_FreeOptions --
|
||
*
|
||
* Free up all resources associated with configuration options.
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side effects:
|
||
* Any resource in widgRec that is controlled by a configuration
|
||
* option (e.g. a Tk_3DBorder or XColor) is freed in the appropriate
|
||
* fashion.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
/* ARGSUSED */
|
||
void
|
||
Tk_FreeOptions(specs, widgRec, display, needFlags)
|
||
Tk_ConfigSpec *specs; /* Describes legal options. */
|
||
char *widgRec; /* Record whose fields contain current
|
||
* values for options. */
|
||
Display *display; /* X display; needed for freeing some
|
||
* resources. */
|
||
int needFlags; /* Used to specify additional flags
|
||
* that must be present in config specs
|
||
* for them to be considered. */
|
||
{
|
||
register Tk_ConfigSpec *specPtr;
|
||
char *ptr;
|
||
|
||
for (specPtr = specs; specPtr->type != TK_CONFIG_END; specPtr++) {
|
||
if ((specPtr->specFlags & needFlags) != needFlags) {
|
||
continue;
|
||
}
|
||
ptr = widgRec + specPtr->offset;
|
||
switch (specPtr->type) {
|
||
#ifdef STk_CODE
|
||
case TK_CONFIG_CLOSURE:
|
||
case TK_CONFIG_ENV:
|
||
case TK_CONFIG_MENU:
|
||
case TK_CONFIG_SINT:
|
||
case TK_CONFIG_SBOOLEAN:
|
||
case TK_CONFIG_BSTRING:
|
||
case TK_CONFIG_IMAGE:
|
||
#endif
|
||
case TK_CONFIG_STRING:
|
||
if (*((char **) ptr) != NULL) {
|
||
ckfree(*((char **) ptr));
|
||
*((char **) ptr) = NULL;
|
||
}
|
||
break;
|
||
case TK_CONFIG_COLOR:
|
||
if (*((XColor **) ptr) != NULL) {
|
||
Tk_FreeColor(*((XColor **) ptr));
|
||
*((XColor **) ptr) = NULL;
|
||
}
|
||
break;
|
||
case TK_CONFIG_FONT:
|
||
Tk_FreeFont(*((Tk_Font *) ptr));
|
||
*((Tk_Font *) ptr) = NULL;
|
||
break;
|
||
case TK_CONFIG_BITMAP:
|
||
if (*((Pixmap *) ptr) != None) {
|
||
Tk_FreeBitmap(display, *((Pixmap *) ptr));
|
||
*((Pixmap *) ptr) = None;
|
||
}
|
||
break;
|
||
case TK_CONFIG_BORDER:
|
||
if (*((Tk_3DBorder *) ptr) != NULL) {
|
||
Tk_Free3DBorder(*((Tk_3DBorder *) ptr));
|
||
*((Tk_3DBorder *) ptr) = NULL;
|
||
}
|
||
break;
|
||
case TK_CONFIG_CURSOR:
|
||
case TK_CONFIG_ACTIVE_CURSOR:
|
||
if (*((Tk_Cursor *) ptr) != None) {
|
||
Tk_FreeCursor(display, *((Tk_Cursor *) ptr));
|
||
*((Tk_Cursor *) ptr) = None;
|
||
}
|
||
}
|
||
}
|
||
}
|