diff options
Diffstat (limited to 'generic/tkConfig.c')
| -rw-r--r-- | generic/tkConfig.c | 1830 |
1 files changed, 892 insertions, 938 deletions
diff --git a/generic/tkConfig.c b/generic/tkConfig.c index 3cef314..f74ae7a 100644 --- a/generic/tkConfig.c +++ b/generic/tkConfig.c @@ -1,15 +1,15 @@ -/* +/* * tkConfig.c -- * - * This file contains procedures that manage configuration options - * for widgets and other things. + * This file contains functions that manage configuration options for + * widgets and other things. * * Copyright (c) 1997-1998 Sun Microsystems, Inc. * - * See the file "license.terms" for information on usage and redistribution - * of this file, and for a DISCLAIMER OF ALL WARRANTIES. + * See the file "license.terms" for information on usage and redistribution of + * this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tkConfig.c,v 1.19 2004/01/13 02:06:00 davygrvy Exp $ + * RCS: @(#) $Id: tkConfig.c,v 1.20 2005/08/10 22:02:22 dkf Exp $ */ /* @@ -31,115 +31,111 @@ #include "tkFont.h" /* - * The following definition is an AssocData key used to keep track of - * all of the option tables that have been created for an interpreter. + * The following definition is an AssocData key used to keep track of all of + * the option tables that have been created for an interpreter. */ #define OPTION_HASH_KEY "TkOptionTable" /* - * The following two structures are used along with Tk_OptionSpec - * structures to manage configuration options. Tk_OptionSpec is - * static templates that are compiled into the code of a widget - * or other object manager. However, to look up options efficiently - * we need to supplement the static information with additional - * dynamic information, and this dynamic information may be different - * for each application. Thus we create structures of the following - * two types to hold all of the dynamic information; this is done - * by Tk_CreateOptionTable. - * - * One of the following structures corresponds to each Tk_OptionSpec. - * These structures exist as arrays inside TkOptionTable structures. + * The following two structures are used along with Tk_OptionSpec structures + * to manage configuration options. Tk_OptionSpec is static templates that are + * compiled into the code of a widget or other object manager. However, to + * look up options efficiently we need to supplement the static information + * with additional dynamic information, and this dynamic information may be + * different for each application. Thus we create structures of the following + * two types to hold all of the dynamic information; this is done by + * Tk_CreateOptionTable. + * + * One of the following structures corresponds to each Tk_OptionSpec. These + * structures exist as arrays inside TkOptionTable structures. */ typedef struct TkOption { - CONST Tk_OptionSpec *specPtr; /* The original spec from the template - * passed to Tk_CreateOptionTable.*/ - Tk_Uid dbNameUID; /* The Uid form of the option database - * name. */ - Tk_Uid dbClassUID; /* The Uid form of the option database - * class name. */ - Tcl_Obj *defaultPtr; /* Default value for this option. */ + CONST Tk_OptionSpec *specPtr; + /* The original spec from the template passed + * to Tk_CreateOptionTable.*/ + Tk_Uid dbNameUID; /* The Uid form of the option database + * name. */ + Tk_Uid dbClassUID; /* The Uid form of the option database class + * name. */ + Tcl_Obj *defaultPtr; /* Default value for this option. */ union { - Tcl_Obj *monoColorPtr; /* For color and border options, this - * is an alternate default value to - * use on monochrome displays. */ - struct TkOption *synonymPtr; /* For synonym options, this points to - * the master entry. */ - struct Tk_ObjCustomOption *custom; /* For TK_OPTION_CUSTOM. */ + Tcl_Obj *monoColorPtr; /* For color and border options, this is an + * alternate default value to use on + * monochrome displays. */ + struct TkOption *synonymPtr; + /* For synonym options, this points to the + * master entry. */ + struct Tk_ObjCustomOption *custom; + /* For TK_OPTION_CUSTOM. */ } extra; - int flags; /* Miscellaneous flag values; see - * below for definitions. */ + int flags; /* Miscellaneous flag values; see below for + * definitions. */ } Option; /* * Flag bits defined for Option structures: * - * OPTION_NEEDS_FREEING - 1 means that FreeResources must be - * invoke to free resources associated with - * the option when it is no longer needed. + * OPTION_NEEDS_FREEING - 1 means that FreeResources must be invoked to + * free resources associated with the option when + * it is no longer needed. */ #define OPTION_NEEDS_FREEING 1 /* - * One of the following exists for each Tk_OptionSpec array that has - * been passed to Tk_CreateOptionTable. + * One of the following exists for each Tk_OptionSpec array that has been + * passed to Tk_CreateOptionTable. */ typedef struct OptionTable { - int refCount; /* Counts the number of uses of this - * table (the number of times - * Tk_CreateOptionTable has returned - * it). This can be greater than 1 if - * it is shared along several option - * table chains, or if the same table - * is used for multiple purposes. */ - Tcl_HashEntry *hashEntryPtr; /* Hash table entry that refers to this - * table; used to delete the entry. */ - struct OptionTable *nextPtr; /* If templatePtr was part of a chain - * of templates, this points to the - * table corresponding to the next - * template in the chain. */ - int numOptions; /* The number of items in the options - * array below. */ - Option options[1]; /* Information about the individual - * options in the table. This must be - * the last field in the structure: - * the actual size of the array will - * be numOptions, not 1. */ + int refCount; /* Counts the number of uses of this table + * (the number of times Tk_CreateOptionTable + * has returned it). This can be greater than + * 1 if it is shared along several option + * table chains, or if the same table is used + * for multiple purposes. */ + Tcl_HashEntry *hashEntryPtr;/* Hash table entry that refers to this table; + * used to delete the entry. */ + struct OptionTable *nextPtr;/* If templatePtr was part of a chain of + * templates, this points to the table + * corresponding to the next template in the + * chain. */ + int numOptions; /* The number of items in the options array + * below. */ + Option options[1]; /* Information about the individual options in + * the table. This must be the last field in + * the structure: the actual size of the array + * will be numOptions, not 1. */ } OptionTable; /* - * Forward declarations for procedures defined later in this file: + * Forward declarations for functions defined later in this file: */ -static int DoObjConfig _ANSI_ARGS_((Tcl_Interp *interp, - char *recordPtr, Option *optionPtr, - Tcl_Obj *valuePtr, Tk_Window tkwin, - Tk_SavedOption *savePtr)); -static void DestroyOptionHashTable _ANSI_ARGS_(( - ClientData clientData, Tcl_Interp *interp)); -static void FreeResources _ANSI_ARGS_((Option *optionPtr, - Tcl_Obj *objPtr, char *internalPtr, - Tk_Window tkwin)); -static Tcl_Obj * GetConfigList _ANSI_ARGS_((char *recordPtr, - Option *optionPtr, Tk_Window tkwin)); -static Tcl_Obj * GetObjectForOption _ANSI_ARGS_((char *recordPtr, - Option *optionPtr, Tk_Window tkwin)); -static Option * GetOption _ANSI_ARGS_((CONST char *name, - OptionTable *tablePtr)); -static Option * GetOptionFromObj _ANSI_ARGS_((Tcl_Interp *interp, - Tcl_Obj *objPtr, OptionTable *tablePtr)); -static int ObjectIsEmpty _ANSI_ARGS_((Tcl_Obj *objPtr)); -static int SetOptionFromAny _ANSI_ARGS_((Tcl_Interp *interp, - Tcl_Obj *objPtr)); +static int DoObjConfig(Tcl_Interp *interp, char *recordPtr, + Option *optionPtr, Tcl_Obj *valuePtr, + Tk_Window tkwin, Tk_SavedOption *savePtr); +static void DestroyOptionHashTable(ClientData clientData, + Tcl_Interp *interp); +static void FreeResources(Option *optionPtr, Tcl_Obj *objPtr, + char *internalPtr, Tk_Window tkwin); +static Tcl_Obj * GetConfigList(char *recordPtr, + Option *optionPtr, Tk_Window tkwin); +static Tcl_Obj * GetObjectForOption(char *recordPtr, + Option *optionPtr, Tk_Window tkwin); +static Option * GetOption(CONST char *name, OptionTable *tablePtr); +static Option * GetOptionFromObj(Tcl_Interp *interp, + Tcl_Obj *objPtr, OptionTable *tablePtr); +static int ObjectIsEmpty(Tcl_Obj *objPtr); +static int SetOptionFromAny(Tcl_Interp *interp, Tcl_Obj *objPtr); /* - * The structure below defines an object type that is used to cache the - * result of looking up an option name. If an object has this type, then - * its internalPtr1 field points to the OptionTable in which it was looked up, - * and the internalPtr2 field points to the entry that matched. + * The structure below defines an object type that is used to cache the result + * of looking up an option name. If an object has this type, then its + * internalPtr1 field points to the OptionTable in which it was looked up, and + * the internalPtr2 field points to the entry that matched. */ Tcl_ObjType tkOptionObjType = { @@ -155,12 +151,12 @@ Tcl_ObjType tkOptionObjType = { * * Tk_CreateOptionTable -- * - * Given a template for configuration options, this procedure - * creates a table that may be used to look up options efficiently. + * Given a template for configuration options, this function creates a + * table that may be used to look up options efficiently. * * Results: - * Returns a token to a structure that can be passed to procedures - * such as Tk_InitOptions, Tk_SetOptions, and Tk_FreeConfigOptions. + * Returns a token to a structure that can be passed to functions such as + * Tk_InitOptions, Tk_SetOptions, and Tk_FreeConfigOptions. * * Side effects: * Storage is allocated. @@ -170,11 +166,11 @@ Tcl_ObjType tkOptionObjType = { Tk_OptionTable Tk_CreateOptionTable(interp, templatePtr) - Tcl_Interp *interp; /* Interpreter associated with the - * application in which this table - * will be used. */ - CONST Tk_OptionSpec *templatePtr; /* Static information about the - * configuration options. */ + Tcl_Interp *interp; /* Interpreter associated with the application + * in which this table will be used. */ + CONST Tk_OptionSpec *templatePtr; + /* Static information about the configuration + * options. */ { Tcl_HashTable *hashTablePtr; Tcl_HashEntry *hashEntryPtr; @@ -185,13 +181,13 @@ Tk_CreateOptionTable(interp, templatePtr) int numOptions, i; /* - * We use an AssocData value in the interpreter to keep a hash - * table of all the option tables we've created for this application. - * This is used for two purposes. First, it allows us to share the - * tables (e.g. in several chains) and second, we use the deletion - * callback for the AssocData to delete all the option tables when - * the interpreter is deleted. The code below finds the hash table - * or creates a new one if it doesn't already exist. + * We use an AssocData value in the interpreter to keep a hash table of + * all the option tables we've created for this application. This is used + * for two purposes. First, it allows us to share the tables (e.g. in + * several chains) and second, we use the deletion callback for the + * AssocData to delete all the option tables when the interpreter is + * deleted. The code below finds the hash table or creates a new one if it + * doesn't already exist. */ hashTablePtr = (Tcl_HashTable *) Tcl_GetAssocData(interp, OPTION_HASH_KEY, @@ -204,8 +200,8 @@ Tk_CreateOptionTable(interp, templatePtr) } /* - * See if a table has already been created for this template. If - * so, just reuse the existing table. + * See if a table has already been created for this template. If so, just + * reuse the existing table. */ hashEntryPtr = Tcl_CreateHashEntry(hashTablePtr, (char *) templatePtr, @@ -217,8 +213,8 @@ Tk_CreateOptionTable(interp, templatePtr) } /* - * Count the number of options in the template, then create the - * table structure. + * Count the number of options in the template, then create the table + * structure. */ numOptions = 0; @@ -247,9 +243,8 @@ Tk_CreateOptionTable(interp, templatePtr) if (specPtr->type == TK_OPTION_SYNONYM) { /* - * This is a synonym option; find the master option that it - * refers to and create a pointer from the synonym to the - * master. + * This is a synonym option; find the master option that it refers + * to and create a pointer from the synonym to the master. */ for (specPtr2 = templatePtr, i = 0; ; specPtr2++, i++) { @@ -267,12 +262,10 @@ Tk_CreateOptionTable(interp, templatePtr) optionPtr->dbNameUID = Tk_GetUid(specPtr->dbName); } if (specPtr->dbClass != NULL) { - optionPtr->dbClassUID = - Tk_GetUid(specPtr->dbClass); + optionPtr->dbClassUID = Tk_GetUid(specPtr->dbClass); } if (specPtr->defValue != NULL) { - optionPtr->defaultPtr = - Tcl_NewStringObj(specPtr->defValue, -1); + optionPtr->defaultPtr = Tcl_NewStringObj(specPtr->defValue,-1); Tcl_IncrRefCount(optionPtr->defaultPtr); } if (((specPtr->type == TK_OPTION_COLOR) @@ -288,7 +281,7 @@ Tk_CreateOptionTable(interp, templatePtr) * Get the custom parsing, etc., functions. */ optionPtr->extra.custom = - (Tk_ObjCustomOption *)specPtr->clientData; + (Tk_ObjCustomOption *) specPtr->clientData; } } if (((specPtr->type == TK_OPTION_STRING) @@ -306,9 +299,9 @@ Tk_CreateOptionTable(interp, templatePtr) Tcl_SetHashValue(hashEntryPtr, tablePtr); /* - * Finally, check to see if this template chains to another template - * with additional options. If so, call ourselves recursively to - * create the next table(s). + * Finally, check to see if this template chains to another template with + * additional options. If so, call ourselves recursively to create the + * next table(s). */ if (specPtr->clientData != NULL) { @@ -324,22 +317,22 @@ Tk_CreateOptionTable(interp, templatePtr) * * Tk_DeleteOptionTable -- * - * Called to release resources used by an option table when - * the table is no longer needed. + * Called to release resources used by an option table when the table is + * no longer needed. * * Results: * None. * * Side effects: - * The option table and associated resources (such as additional - * option tables chained off it) are destroyed. + * The option table and associated resources (such as additional option + * tables chained off it) are destroyed. * *---------------------------------------------------------------------- */ void Tk_DeleteOptionTable(optionTable) - Tk_OptionTable optionTable; /* The option table to delete. */ + Tk_OptionTable optionTable; /* The option table to delete. */ { OptionTable *tablePtr = (OptionTable *) optionTable; Option *optionPtr; @@ -374,17 +367,17 @@ Tk_DeleteOptionTable(optionTable) * * DestroyOptionHashTable -- * - * This procedure is the deletion callback associated with the - * AssocData entry created by Tk_CreateOptionTable. It is - * invoked when an interpreter is deleted, and deletes all of - * the option tables associated with that interpreter. + * This function is the deletion callback associated with the AssocData + * entry created by Tk_CreateOptionTable. It is invoked when an + * interpreter is deleted, and deletes all of the option tables + * associated with that interpreter. * * Results: * None. * * Side effects: - * The option hash table is destroyed along with all of the - * OptionTable structures that it refers to. + * The option hash table is destroyed along with all of the OptionTable + * structures that it refers to. * *---------------------------------------------------------------------- */ @@ -406,13 +399,12 @@ DestroyOptionHashTable(clientData, interp) /* * The following statements do two tricky things: - * 1. They ensure that the option table is deleted, even if - * there are outstanding references to it. - * 2. They ensure that Tk_DeleteOptionTable doesn't delete - * other tables chained from this one; we'll do it when - * we come across the hash table entry for the chained - * table (in fact, the chained table may already have - * been deleted). + * 1. They ensure that the option table is deleted, even if there are + * outstanding references to it. + * 2. They ensure that Tk_DeleteOptionTable doesn't delete other + * tables chained from this one; we'll do it when we come across + * the hash table entry for the chained table (in fact, the chained + * table may already have been deleted). */ tablePtr->refCount = 1; @@ -428,16 +420,16 @@ DestroyOptionHashTable(clientData, interp) * * Tk_InitOptions -- * - * This procedure is invoked when an object such as a widget - * is created. It supplies an initial value for each configuration - * option (the value may come from the option database, a system - * default, or the default in the option table). + * This function is invoked when an object such as a widget is created. + * It supplies an initial value for each configuration option (the value + * may come from the option database, a system default, or the default in + * the option table). * * Results: - * The return value is TCL_OK if the procedure completed - * successfully, and TCL_ERROR if one of the initial values was - * bogus. If an error occurs and interp isn't NULL, then an - * error message will be left in its result. + * The return value is TCL_OK if the function completed successfully, and + * TCL_ERROR if one of the initial values was bogus. If an error occurs + * and interp isn't NULL, then an error message will be left in its + * result. * * Side effects: * Fields of recordPtr are filled in with initial values. @@ -447,20 +439,20 @@ DestroyOptionHashTable(clientData, interp) int Tk_InitOptions(interp, recordPtr, optionTable, tkwin) - Tcl_Interp *interp; /* Interpreter for error reporting. NULL - * means don't leave an error message. */ - char *recordPtr; /* Pointer to the record to configure. - * Note: the caller should have properly - * initialized the record with NULL - * pointers for each option value. */ - Tk_OptionTable optionTable; /* The token which matches the config - * specs for the widget in question. */ + Tcl_Interp *interp; /* Interpreter for error reporting. NULL means + * don't leave an error message. */ + char *recordPtr; /* Pointer to the record to configure. Note: + * the caller should have properly initialized + * the record with NULL pointers for each + * option value. */ + Tk_OptionTable optionTable; /* The token which matches the config specs + * for the widget in question. */ Tk_Window tkwin; /* Certain options types (such as - * TK_OPTION_COLOR) need fields out - * of the window they are used in to - * be able to calculate their values. - * Not needed unless one of these - * options is in the configSpecs record. */ + * TK_OPTION_COLOR) need fields out of the + * window they are used in to be able to + * calculate their values. Not needed unless + * one of these options is in the configSpecs + * record. */ { OptionTable *tablePtr = (OptionTable *) optionTable; Option *optionPtr; @@ -473,8 +465,8 @@ Tk_InitOptions(interp, recordPtr, optionTable, tkwin) /* * If this table chains to other tables, handle their initialization - * first. That way, if both tables refer to the same field of the - * record, the value in the first table will win. + * first. That way, if both tables refer to the same field of the record, + * the value in the first table will win. */ if (tablePtr->nextPtr != NULL) { @@ -491,11 +483,11 @@ Tk_InitOptions(interp, recordPtr, optionTable, tkwin) for (optionPtr = tablePtr->options, count = tablePtr->numOptions; count > 0; optionPtr++, count--) { - /* * If we specify TK_OPTION_DONT_SET_DEFAULT, then the user has * processed and set a default for this already. */ + if ((optionPtr->specPtr->type == TK_OPTION_SYNONYM) || (optionPtr->specPtr->flags & TK_OPTION_DONT_SET_DEFAULT)) { continue; @@ -504,12 +496,12 @@ Tk_InitOptions(interp, recordPtr, optionTable, tkwin) /* * We look in three places for the initial value, using the first - * non-NULL value that we find. First, check the option database. + * non-NULL value that we find. First, check the option database. */ valuePtr = NULL; if (optionPtr->dbNameUID != NULL) { - value = Tk_GetOption(tkwin, optionPtr->dbNameUID, + value = Tk_GetOption(tkwin, optionPtr->dbNameUID, optionPtr->dbClassUID); if (value != NULL) { valuePtr = Tcl_NewStringObj(value, -1); @@ -520,6 +512,7 @@ Tk_InitOptions(interp, recordPtr, optionTable, tkwin) /* * Second, check for a system-specific default value. */ + if ((valuePtr == NULL) && (optionPtr->dbNameUID != NULL)) { valuePtr = TkpGetSystemDefault(tkwin, optionPtr->dbNameUID, @@ -530,16 +523,16 @@ Tk_InitOptions(interp, recordPtr, optionTable, tkwin) } /* - * Third and last, use the default value supplied by the option - * table. In the case of color objects, we pick one of two - * values depending on whether the screen is mono or color. + * Third and last, use the default value supplied by the option table. + * In the case of color objects, we pick one of two values depending + * on whether the screen is mono or color. */ if (valuePtr == NULL) { - if ((tkwin != NULL) + if ((tkwin != NULL) && ((optionPtr->specPtr->type == TK_OPTION_COLOR) || (optionPtr->specPtr->type == TK_OPTION_BORDER)) - && (Tk_Depth(tkwin) <= 1) + && (Tk_Depth(tkwin) <= 1) && (optionPtr->extra.monoColorPtr != NULL)) { valuePtr = optionPtr->extra.monoColorPtr; } else { @@ -556,25 +549,26 @@ Tk_InitOptions(interp, recordPtr, optionTable, tkwin) * referenced here, and will be properly free'd when finished, * regardless of what DoObjConfig does. */ + Tcl_IncrRefCount(valuePtr); - + if (DoObjConfig(interp, recordPtr, optionPtr, valuePtr, tkwin, (Tk_SavedOption *) NULL) != TCL_OK) { if (interp != NULL) { char msg[200]; - + switch (source) { - case OPTION_DATABASE: - sprintf(msg, "\n (database entry for \"%.50s\")", - optionPtr->specPtr->optionName); - break; - case SYSTEM_DEFAULT: - sprintf(msg, "\n (system default for \"%.50s\")", - optionPtr->specPtr->optionName); - break; - case TABLE_DEFAULT: - sprintf(msg, "\n (default value for \"%.50s\")", - optionPtr->specPtr->optionName); + case OPTION_DATABASE: + sprintf(msg, "\n (database entry for \"%.50s\")", + optionPtr->specPtr->optionName); + break; + case SYSTEM_DEFAULT: + sprintf(msg, "\n (system default for \"%.50s\")", + optionPtr->specPtr->optionName); + break; + case TABLE_DEFAULT: + sprintf(msg, "\n (default value for \"%.50s\")", + optionPtr->specPtr->optionName); } if (tkwin != NULL) { sprintf(msg + strlen(msg) - 1, " in widget \"%.50s\")", @@ -595,39 +589,37 @@ Tk_InitOptions(interp, recordPtr, optionTable, tkwin) * * DoObjConfig -- * - * This procedure applies a new value for a configuration option - * to the record being configured. + * This function applies a new value for a configuration option to the + * record being configured. * * Results: - * The return value is TCL_OK if the procedure completed - * successfully. If an error occurred then TCL_ERROR is - * returned and an error message is left in interp's result, if - * interp isn't NULL. In addition, if oldValuePtrPtr isn't - * NULL then it *oldValuePtrPtr is filled in with a pointer - * to the option's old value. + * The return value is TCL_OK if the function completed successfully. If + * an error occurred then TCL_ERROR is returned and an error message is + * left in interp's result, if interp isn't NULL. In addition, if + * oldValuePtrPtr isn't NULL then it *oldValuePtrPtr is filled in with a + * pointer to the option's old value. * * Side effects: - * RecordPtr gets modified to hold the new value in the form of - * a Tcl_Obj, an internal representation, or both. The old - * value is freed if oldValuePtrPtr is NULL. + * RecordPtr gets modified to hold the new value in the form of a + * Tcl_Obj, an internal representation, or both. The old value is freed + * if oldValuePtrPtr is NULL. * *-------------------------------------------------------------- */ static int DoObjConfig(interp, recordPtr, optionPtr, valuePtr, tkwin, savedOptionPtr) - Tcl_Interp *interp; /* Interpreter for error reporting. If - * NULL, then no message is left if an error + Tcl_Interp *interp; /* Interpreter for error reporting. If NULL, + * then no message is left if an error * occurs. */ - char *recordPtr; /* The record to modify to hold the new - * option value. */ - Option *optionPtr; /* Pointer to information about the - * option. */ + char *recordPtr; /* The record to modify to hold the new option + * value. */ + Option *optionPtr; /* Pointer to information about the option. */ Tcl_Obj *valuePtr; /* New value for option. */ Tk_Window tkwin; /* Window in which option will be used (needed * to allocate resources for some options). - * May be NULL if the option doesn't - * require window-related resources. */ + * May be NULL if the option doesn't require + * window-related resources. */ Tk_SavedOption *savedOptionPtr; /* If NULL, the old value for the option will * be freed. If non-NULL, the old value will @@ -636,13 +628,14 @@ DoObjConfig(interp, recordPtr, optionPtr, valuePtr, tkwin, savedOptionPtr) * free the old value). */ { Tcl_Obj **slotPtrPtr, *oldPtr; - char *internalPtr; /* Points to location in record where - * internal representation of value should - * be stored, or NULL. */ + char *internalPtr; /* Points to location in record where internal + * representation of value should be stored, + * or NULL. */ char *oldInternalPtr; /* Points to location in which to save old * internal representation of value. */ - Tk_SavedOption internal; /* Used to save the old internal representation - * of the value if savedOptionPtr is NULL. */ + Tk_SavedOption internal; /* Used to save the old internal + * representation of the value if + * savedOptionPtr is NULL. */ CONST Tk_OptionSpec *specPtr; int nullOK; @@ -660,8 +653,8 @@ DoObjConfig(interp, recordPtr, optionPtr, valuePtr, tkwin, savedOptionPtr) } /* - * Apply the new value in a type-specific way. Also remember the - * old object and internal forms, if they exist. + * Apply the new value in a type-specific way. Also remember the old + * object and internal forms, if they exist. */ if (specPtr->internalOffset >= 0) { @@ -678,296 +671,293 @@ DoObjConfig(interp, recordPtr, optionPtr, valuePtr, tkwin, savedOptionPtr) } nullOK = (optionPtr->specPtr->flags & TK_OPTION_NULL_OK); switch (optionPtr->specPtr->type) { - case TK_OPTION_BOOLEAN: { - int new; + case TK_OPTION_BOOLEAN: { + int newBool; - if (Tcl_GetBooleanFromObj(interp, valuePtr, &new) - != TCL_OK) { - return TCL_ERROR; - } - if (internalPtr != NULL) { - *((int *) oldInternalPtr) = *((int *) internalPtr); - *((int *) internalPtr) = new; - } - break; + if (Tcl_GetBooleanFromObj(interp, valuePtr, &newBool) != TCL_OK) { + return TCL_ERROR; } - case TK_OPTION_INT: { - int new; - - if (Tcl_GetIntFromObj(interp, valuePtr, &new) != TCL_OK) { - return TCL_ERROR; - } - if (internalPtr != NULL) { - *((int *) oldInternalPtr) = *((int *) internalPtr); - *((int *) internalPtr) = new; - } - break; + if (internalPtr != NULL) { + *((int *) oldInternalPtr) = *((int *) internalPtr); + *((int *) internalPtr) = newBool; } - case TK_OPTION_DOUBLE: { - double new; - - if (nullOK && ObjectIsEmpty(valuePtr)) { - valuePtr = NULL; - new = 0; - } else { - if (Tcl_GetDoubleFromObj(interp, valuePtr, &new) != TCL_OK) { - return TCL_ERROR; - } - } + break; + } + case TK_OPTION_INT: { + int newInt; - if (internalPtr != NULL) { - *((double *) oldInternalPtr) = *((double *) internalPtr); - *((double *) internalPtr) = new; - } - break; + if (Tcl_GetIntFromObj(interp, valuePtr, &newInt) != TCL_OK) { + return TCL_ERROR; } - case TK_OPTION_STRING: { - char *new, *value; - int length; - - if (nullOK && ObjectIsEmpty(valuePtr)) { - valuePtr = NULL; - } - if (internalPtr != NULL) { - if (valuePtr != NULL) { - value = Tcl_GetStringFromObj(valuePtr, &length); - new = ckalloc((unsigned) (length + 1)); - strcpy(new, value); - } else { - new = NULL; - } - *((char **) oldInternalPtr) = *((char **) internalPtr); - *((char **) internalPtr) = new; - } - break; + if (internalPtr != NULL) { + *((int *) oldInternalPtr) = *((int *) internalPtr); + *((int *) internalPtr) = newInt; } - case TK_OPTION_STRING_TABLE: { - int new; + break; + } + case TK_OPTION_DOUBLE: { + double newDbl; - if (Tcl_GetIndexFromObj(interp, valuePtr, - (CONST char **) optionPtr->specPtr->clientData, - optionPtr->specPtr->optionName+1, 0, &new) != TCL_OK) { + if (nullOK && ObjectIsEmpty(valuePtr)) { + valuePtr = NULL; + newDbl = 0; + } else { + if (Tcl_GetDoubleFromObj(interp, valuePtr, &newDbl) != TCL_OK) { return TCL_ERROR; } - if (internalPtr != NULL) { - *((int *) oldInternalPtr) = *((int *) internalPtr); - *((int *) internalPtr) = new; - } - break; } - case TK_OPTION_COLOR: { - XColor *newPtr; - if (nullOK && ObjectIsEmpty(valuePtr)) { - valuePtr = NULL; - newPtr = NULL; - } else { - newPtr = Tk_AllocColorFromObj(interp, tkwin, valuePtr); - if (newPtr == NULL) { - return TCL_ERROR; - } - } - if (internalPtr != NULL) { - *((XColor **) oldInternalPtr) = *((XColor **) internalPtr); - *((XColor **) internalPtr) = newPtr; - } - break; + if (internalPtr != NULL) { + *((double *) oldInternalPtr) = *((double *) internalPtr); + *((double *) internalPtr) = newDbl; } - case TK_OPTION_FONT: { - Tk_Font new; + break; + } + case TK_OPTION_STRING: { + char *newStr, *value; + int length; - if (nullOK && ObjectIsEmpty(valuePtr)) { - valuePtr = NULL; - new = NULL; + if (nullOK && ObjectIsEmpty(valuePtr)) { + valuePtr = NULL; + } + if (internalPtr != NULL) { + if (valuePtr != NULL) { + value = Tcl_GetStringFromObj(valuePtr, &length); + newStr = ckalloc((unsigned) (length + 1)); + strcpy(newStr, value); } else { - new = Tk_AllocFontFromObj(interp, tkwin, valuePtr); - if (new == NULL) { - return TCL_ERROR; - } - } - if (internalPtr != NULL) { - *((Tk_Font *) oldInternalPtr) = *((Tk_Font *) internalPtr); - *((Tk_Font *) internalPtr) = new; + newStr = NULL; } - break; + *((char **) oldInternalPtr) = *((char **) internalPtr); + *((char **) internalPtr) = newStr; } - case TK_OPTION_STYLE: { - Tk_Style new; + break; + } + case TK_OPTION_STRING_TABLE: { + int newValue; - if (nullOK && ObjectIsEmpty(valuePtr)) { - valuePtr = NULL; - new = NULL; - } else { - new = Tk_AllocStyleFromObj(interp, valuePtr); - if (new == NULL) { - return TCL_ERROR; - } - } - if (internalPtr != NULL) { - *((Tk_Style *) oldInternalPtr) = *((Tk_Style *) internalPtr); - *((Tk_Style *) internalPtr) = new; - } - break; + if (Tcl_GetIndexFromObj(interp, valuePtr, + (CONST char **) optionPtr->specPtr->clientData, + optionPtr->specPtr->optionName+1, 0, &newValue) != TCL_OK) { + return TCL_ERROR; } - case TK_OPTION_BITMAP: { - Pixmap new; + if (internalPtr != NULL) { + *((int *) oldInternalPtr) = *((int *) internalPtr); + *((int *) internalPtr) = newValue; + } + break; + } + case TK_OPTION_COLOR: { + XColor *newPtr; - if (nullOK && ObjectIsEmpty(valuePtr)) { - valuePtr = NULL; - new = None; - } else { - new = Tk_AllocBitmapFromObj(interp, tkwin, valuePtr); - if (new == None) { - return TCL_ERROR; - } - } - if (internalPtr != NULL) { - *((Pixmap *) oldInternalPtr) = *((Pixmap *) internalPtr); - *((Pixmap *) internalPtr) = new; + if (nullOK && ObjectIsEmpty(valuePtr)) { + valuePtr = NULL; + newPtr = NULL; + } else { + newPtr = Tk_AllocColorFromObj(interp, tkwin, valuePtr); + if (newPtr == NULL) { + return TCL_ERROR; } - break; } - case TK_OPTION_BORDER: { - Tk_3DBorder new; + if (internalPtr != NULL) { + *((XColor **) oldInternalPtr) = *((XColor **) internalPtr); + *((XColor **) internalPtr) = newPtr; + } + break; + } + case TK_OPTION_FONT: { + Tk_Font newFont; - if (nullOK && ObjectIsEmpty(valuePtr)) { - valuePtr = NULL; - new = NULL; - } else { - new = Tk_Alloc3DBorderFromObj(interp, tkwin, valuePtr); - if (new == NULL) { - return TCL_ERROR; - } - } - if (internalPtr != NULL) { - *((Tk_3DBorder *) oldInternalPtr) = - *((Tk_3DBorder *) internalPtr); - *((Tk_3DBorder *) internalPtr) = new; + if (nullOK && ObjectIsEmpty(valuePtr)) { + valuePtr = NULL; + newFont = NULL; + } else { + newFont = Tk_AllocFontFromObj(interp, tkwin, valuePtr); + if (newFont == NULL) { + return TCL_ERROR; } - break; } - case TK_OPTION_RELIEF: { - int new; + if (internalPtr != NULL) { + *((Tk_Font *) oldInternalPtr) = *((Tk_Font *) internalPtr); + *((Tk_Font *) internalPtr) = newFont; + } + break; + } + case TK_OPTION_STYLE: { + Tk_Style newStyle; - if (nullOK && ObjectIsEmpty(valuePtr)) { - valuePtr = NULL; - new = TK_RELIEF_NULL; - } else { - if (Tk_GetReliefFromObj(interp, valuePtr, &new) != TCL_OK) { - return TCL_ERROR; - } - } - if (internalPtr != NULL) { - *((int *) oldInternalPtr) = *((int *) internalPtr); - *((int *) internalPtr) = new; + if (nullOK && ObjectIsEmpty(valuePtr)) { + valuePtr = NULL; + newStyle = NULL; + } else { + newStyle = Tk_AllocStyleFromObj(interp, valuePtr); + if (newStyle == NULL) { + return TCL_ERROR; } - break; } - case TK_OPTION_CURSOR: { - Tk_Cursor new; + if (internalPtr != NULL) { + *((Tk_Style *) oldInternalPtr) = *((Tk_Style *) internalPtr); + *((Tk_Style *) internalPtr) = newStyle; + } + break; + } + case TK_OPTION_BITMAP: { + Pixmap newBitmap; - if (nullOK && ObjectIsEmpty(valuePtr)) { - new = None; - valuePtr = NULL; - } else { - new = Tk_AllocCursorFromObj(interp, tkwin, valuePtr); - if (new == None) { - return TCL_ERROR; - } - } - if (internalPtr != NULL) { - *((Tk_Cursor *) oldInternalPtr) = *((Tk_Cursor *) internalPtr); - *((Tk_Cursor *) internalPtr) = new; + if (nullOK && ObjectIsEmpty(valuePtr)) { + valuePtr = NULL; + newBitmap = None; + } else { + newBitmap = Tk_AllocBitmapFromObj(interp, tkwin, valuePtr); + if (newBitmap == None) { + return TCL_ERROR; } - Tk_DefineCursor(tkwin, new); - break; } - case TK_OPTION_JUSTIFY: { - Tk_Justify new; + if (internalPtr != NULL) { + *((Pixmap *) oldInternalPtr) = *((Pixmap *) internalPtr); + *((Pixmap *) internalPtr) = newBitmap; + } + break; + } + case TK_OPTION_BORDER: { + Tk_3DBorder newBorder; - if (Tk_GetJustifyFromObj(interp, valuePtr, &new) != TCL_OK) { + if (nullOK && ObjectIsEmpty(valuePtr)) { + valuePtr = NULL; + newBorder = NULL; + } else { + newBorder = Tk_Alloc3DBorderFromObj(interp, tkwin, valuePtr); + if (newBorder == NULL) { return TCL_ERROR; } - if (internalPtr != NULL) { - *((Tk_Justify *) oldInternalPtr) - = *((Tk_Justify *) internalPtr); - *((Tk_Justify *) internalPtr) = new; - } - break; } - case TK_OPTION_ANCHOR: { - Tk_Anchor new; + if (internalPtr != NULL) { + *((Tk_3DBorder *) oldInternalPtr) = *((Tk_3DBorder *) internalPtr); + *((Tk_3DBorder *) internalPtr) = newBorder; + } + break; + } + case TK_OPTION_RELIEF: { + int newRelief; - if (Tk_GetAnchorFromObj(interp, valuePtr, &new) != TCL_OK) { + if (nullOK && ObjectIsEmpty(valuePtr)) { + valuePtr = NULL; + newRelief = TK_RELIEF_NULL; + } else { + if (Tk_GetReliefFromObj(interp, valuePtr, &newRelief) != TCL_OK) { return TCL_ERROR; } - if (internalPtr != NULL) { - *((Tk_Anchor *) oldInternalPtr) - = *((Tk_Anchor *) internalPtr); - *((Tk_Anchor *) internalPtr) = new; - } - break; } - case TK_OPTION_PIXELS: { - int new; + if (internalPtr != NULL) { + *((int *) oldInternalPtr) = *((int *) internalPtr); + *((int *) internalPtr) = newRelief; + } + break; + } + case TK_OPTION_CURSOR: { + Tk_Cursor newCursor; - if (nullOK && ObjectIsEmpty(valuePtr)) { - valuePtr = NULL; - new = 0; - } else { - if (Tk_GetPixelsFromObj(interp, tkwin, valuePtr, - &new) != TCL_OK) { - return TCL_ERROR; - } - } - if (internalPtr != NULL) { - *((int *) oldInternalPtr) = *((int *) internalPtr); - *((int *) internalPtr) = new; + if (nullOK && ObjectIsEmpty(valuePtr)) { + newCursor = None; + valuePtr = NULL; + } else { + newCursor = Tk_AllocCursorFromObj(interp, tkwin, valuePtr); + if (newCursor == None) { + return TCL_ERROR; } - break; } - case TK_OPTION_WINDOW: { - Tk_Window new; + if (internalPtr != NULL) { + *((Tk_Cursor *) oldInternalPtr) = *((Tk_Cursor *) internalPtr); + *((Tk_Cursor *) internalPtr) = newCursor; + } + Tk_DefineCursor(tkwin, newCursor); + break; + } + case TK_OPTION_JUSTIFY: { + Tk_Justify newJustify; - if (nullOK && ObjectIsEmpty(valuePtr)) { - valuePtr = NULL; - new = None; - } else { - if (TkGetWindowFromObj(interp, tkwin, valuePtr, &new) - != TCL_OK) { - return TCL_ERROR; - } - } - if (internalPtr != NULL) { - *((Tk_Window *) oldInternalPtr) = *((Tk_Window *) internalPtr); - *((Tk_Window *) internalPtr) = new; + if (Tk_GetJustifyFromObj(interp, valuePtr, &newJustify) != TCL_OK) { + return TCL_ERROR; + } + if (internalPtr != NULL) { + *((Tk_Justify *) oldInternalPtr) = *((Tk_Justify *) internalPtr); + *((Tk_Justify *) internalPtr) = newJustify; + } + break; + } + case TK_OPTION_ANCHOR: { + Tk_Anchor newAnchor; + + if (Tk_GetAnchorFromObj(interp, valuePtr, &newAnchor) != TCL_OK) { + return TCL_ERROR; + } + if (internalPtr != NULL) { + *((Tk_Anchor *) oldInternalPtr) = *((Tk_Anchor *) internalPtr); + *((Tk_Anchor *) internalPtr) = newAnchor; + } + break; + } + case TK_OPTION_PIXELS: { + int newPixels; + + if (nullOK && ObjectIsEmpty(valuePtr)) { + valuePtr = NULL; + newPixels = 0; + } else { + if (Tk_GetPixelsFromObj(interp, tkwin, valuePtr, + &newPixels) != TCL_OK) { + return TCL_ERROR; } - break; } - case TK_OPTION_CUSTOM: { - Tk_ObjCustomOption *custom = optionPtr->extra.custom; - if (custom->setProc(custom->clientData, interp, tkwin, - &valuePtr, recordPtr, optionPtr->specPtr->internalOffset, - (char *)oldInternalPtr, - optionPtr->specPtr->flags) != TCL_OK) { + if (internalPtr != NULL) { + *((int *) oldInternalPtr) = *((int *) internalPtr); + *((int *) internalPtr) = newPixels; + } + break; + } + case TK_OPTION_WINDOW: { + Tk_Window newWin; + + if (nullOK && ObjectIsEmpty(valuePtr)) { + valuePtr = NULL; + newWin = None; + } else { + if (TkGetWindowFromObj(interp, tkwin, valuePtr, + &newWin) != TCL_OK) { return TCL_ERROR; } - break; } - - default: { - char buf[40+TCL_INTEGER_SPACE]; - sprintf(buf, "bad config table: unknown type %d", - optionPtr->specPtr->type); - Tcl_SetResult(interp, buf, TCL_VOLATILE); + if (internalPtr != NULL) { + *((Tk_Window *) oldInternalPtr) = *((Tk_Window *) internalPtr); + *((Tk_Window *) internalPtr) = newWin; + } + break; + } + case TK_OPTION_CUSTOM: { + Tk_ObjCustomOption *custom = optionPtr->extra.custom; + + if (custom->setProc(custom->clientData, interp, tkwin, + &valuePtr, recordPtr, optionPtr->specPtr->internalOffset, + (char *)oldInternalPtr, optionPtr->specPtr->flags) != TCL_OK) { return TCL_ERROR; } + break; + } + + { + char buf[40+TCL_INTEGER_SPACE]; + + default: + sprintf(buf, "bad config table: unknown type %d", + optionPtr->specPtr->type); + Tcl_SetResult(interp, buf, TCL_VOLATILE); + return TCL_ERROR; + } } /* - * Release resources associated with the old value, if we're not - * returning it to the caller, then install the new object value into - * the record. + * Release resources associated with the old value, if we're not returning + * it to the caller, then install the new object value into the record. */ if (savedOptionPtr == NULL) { @@ -992,12 +982,11 @@ DoObjConfig(interp, recordPtr, optionPtr, valuePtr, tkwin, savedOptionPtr) * * ObjectIsEmpty -- * - * This procedure tests whether the string value of an object is - * empty. + * This function tests whether the string value of an object is empty. * * Results: - * The return value is 1 if the string value of objPtr has length - * zero, and 0 otherwise. + * The return value is 1 if the string value of objPtr has length zero, + * and 0 otherwise. * * Side effects: * None. @@ -1007,7 +996,7 @@ DoObjConfig(interp, recordPtr, optionPtr, valuePtr, tkwin, savedOptionPtr) static int ObjectIsEmpty(objPtr) - Tcl_Obj *objPtr; /* Object to test. May be NULL. */ + Tcl_Obj *objPtr; /* Object to test. May be NULL. */ { int length; @@ -1026,15 +1015,14 @@ ObjectIsEmpty(objPtr) * * GetOption -- * - * This procedure searches through a chained option table to find - * the entry for a particular option name. + * This function searches through a chained option table to find the + * entry for a particular option name. * * Results: - * The return value is a pointer to the matching entry, or NULL - * if no matching entry could be found. - * Note: if the matching entry is a synonym then this procedure - * returns a pointer to the synonym entry, *not* the "real" entry - * that the synonym refers to. + * The return value is a pointer to the matching entry, or NULL if no + * matching entry could be found. Note: if the matching entry is a + * synonym then this function returns a pointer to the synonym entry, + * *not* the "real" entry that the synonym refers to. * * Side effects: * None. @@ -1044,8 +1032,8 @@ ObjectIsEmpty(objPtr) static Option * GetOption(name, tablePtr) - CONST char *name; /* String balue to be looked up in the - * option table. */ + CONST char *name; /* String balue to be looked up in the option + * table. */ OptionTable *tablePtr; /* Table in which to look up name. */ { Option *bestPtr, *optionPtr; @@ -1054,14 +1042,13 @@ GetOption(name, tablePtr) int count; /* - * Search through all of the option tables in the chain to find the - * best match. Some tricky aspects: + * Search through all of the option tables in the chain to find the best + * match. Some tricky aspects: * * 1. We have to accept unique abbreviations. - * 2. The same name could appear in different tables in the chain. - * If this happens, we use the entry from the first table. We - * have to be careful to distinguish this case from an ambiguous - * abbreviation. + * 2. The same name could appear in different tables in the chain. If this + * happens, we use the entry from the first table. We have to be + * careful to distinguish this case from an ambiguous abbreviation. */ bestPtr = NULL; @@ -1073,40 +1060,38 @@ GetOption(name, tablePtr) *p1 == *p2; p1++, p2++) { if (*p1 == 0) { /* - * This is an exact match. We're done. + * This is an exact match. We're done. */ - bestPtr = optionPtr; - goto done; + return optionPtr; } } if (*p1 == 0) { /* - * The name is an abbreviation for this option. Keep - * to make sure that the abbreviation only matches one - * option name. If we've already found a match in the - * past, then it is an error unless the full names for - * the two options are identical; in this case, the first - * option overrides the second. + * The name is an abbreviation for this option. Keep to make + * sure that the abbreviation only matches one option name. + * If we've already found a match in the past, then it is an + * error unless the full names for the two options are + * identical; in this case, the first option overrides the + * second. */ if (bestPtr == NULL) { bestPtr = optionPtr; - } else { - if (strcmp(bestPtr->specPtr->optionName, - optionPtr->specPtr->optionName) != 0) { - goto error; - } + } else if (strcmp(bestPtr->specPtr->optionName, + optionPtr->specPtr->optionName) != 0) { + return NULL; } } } } - done: - return bestPtr; + /* + * Return whatever we have found, which could be NULL if nothing + * matched. The multiple-matching case is handled above. + */ - error: - return NULL; + return bestPtr; } /* @@ -1114,32 +1099,30 @@ GetOption(name, tablePtr) * * GetOptionFromObj -- * - * This procedure searches through a chained option table to find - * the entry for a particular option name. + * This function searches through a chained option table to find the + * entry for a particular option name. * * Results: - * The return value is a pointer to the matching entry, or NULL - * if no matching entry could be found. If NULL is returned and - * interp is not NULL than an error message is left in its result. - * Note: if the matching entry is a synonym then this procedure - * returns a pointer to the synonym entry, *not* the "real" entry - * that the synonym refers to. + * The return value is a pointer to the matching entry, or NULL if no + * matching entry could be found. If NULL is returned and interp is not + * NULL than an error message is left in its result. Note: if the + * matching entry is a synonym then this function returns a pointer to + * the synonym entry, *not* the "real" entry that the synonym refers to. * * Side effects: - * Information about the matching entry is cached in the object - * containing the name, so that future lookups can proceed more - * quickly. + * Information about the matching entry is cached in the object + * containing the name, so that future lookups can proceed more quickly. * *---------------------------------------------------------------------- */ static Option * GetOptionFromObj(interp, objPtr, tablePtr) - Tcl_Interp *interp; /* Used only for error reporting; if NULL - * no message is left after an error. */ - Tcl_Obj *objPtr; /* Object whose string value is to be - * looked up in the option table. */ - OptionTable *tablePtr; /* Table in which to look up objPtr. */ + Tcl_Interp *interp; /* Used only for error reporting; if NULL no + * message is left after an error. */ + Tcl_Obj *objPtr; /* Object whose string value is to be looked + * up in the option table. */ + OptionTable *tablePtr; /* Table in which to look up objPtr. */ { Option *bestPtr; char *name; @@ -1149,16 +1132,16 @@ GetOptionFromObj(interp, objPtr, tablePtr) */ if (objPtr->typePtr == &tkOptionObjType) { - if (objPtr->internalRep.twoPtrValue.ptr1 == (VOID *) tablePtr) { - return (Option *) objPtr->internalRep.twoPtrValue.ptr2; - } + if (objPtr->internalRep.twoPtrValue.ptr1 == (VOID *) tablePtr) { + return (Option *) objPtr->internalRep.twoPtrValue.ptr2; + } } /* * The answer isn't cached. */ - name = Tcl_GetStringFromObj(objPtr, (int *) NULL); + name = Tcl_GetString(objPtr); bestPtr = GetOption(name, tablePtr); if (bestPtr == NULL) { goto error; @@ -1173,10 +1156,9 @@ GetOptionFromObj(interp, objPtr, tablePtr) objPtr->typePtr = &tkOptionObjType; return bestPtr; - error: + error: if (interp != NULL) { - Tcl_AppendResult(interp, "unknown option \"", name, - "\"", (char *) NULL); + Tcl_AppendResult(interp, "unknown option \"",name,"\"", (char *) NULL); } return NULL; } @@ -1186,29 +1168,28 @@ GetOptionFromObj(interp, objPtr, tablePtr) * * TkGetOptionSpec -- * - * This procedure searches through a chained option table to find - * the option spec for a particular option name. + * This function searches through a chained option table to find the + * option spec for a particular option name. * * Results: - * The return value is a pointer to the option spec of the matching - * entry, or NULL if no matching entry could be found. - * Note: if the matching entry is a synonym then this procedure - * returns a pointer to the option spec of the synonym entry, *not* - * the "real" entry that the synonym refers to. - * Note: this call is primarily used by the style management code - * (tkStyle.c) to look up an element's option spec into a widget's - * option table. + * The return value is a pointer to the option spec of the matching + * entry, or NULL if no matching entry could be found. Note: if the + * matching entry is a synonym then this function returns a pointer to + * the option spec of the synonym entry, *not* the "real" entry that the + * synonym refers to. Note: this call is primarily used by the style + * management code (tkStyle.c) to look up an element's option spec into a + * widget's option table. * * Side effects: - * None. + * None. * *---------------------------------------------------------------------- */ CONST Tk_OptionSpec * TkGetOptionSpec(name, optionTable) - CONST char *name; /* String value to be looked up. */ - Tk_OptionTable optionTable; /* Table in which to look up name. */ + CONST char *name; /* String value to be looked up. */ + Tk_OptionTable optionTable; /* Table in which to look up name. */ { Option *optionPtr; @@ -1224,14 +1205,14 @@ TkGetOptionSpec(name, optionTable) * * SetOptionFromAny -- * - * This procedure is called to convert a Tcl object to option - * internal form. However, this doesn't make sense (need to have a - * table of options in order to do the conversion) so the - * procedure always generates an error. + * This function is called to convert a Tcl object to option internal + * form. However, this doesn't make sense (need to have a table of + * options in order to do the conversion) so the function always + * generates an error. * * Results: - * The return value is always TCL_ERROR, and an error message is - * left in interp's result if interp isn't NULL. + * The return value is always TCL_ERROR, and an error message is left in + * interp's result if interp isn't NULL. * * Side effects: * None. @@ -1255,24 +1236,23 @@ SetOptionFromAny(interp, objPtr) * * Tk_SetOptions -- * - * Process one or more name-value pairs for configuration options - * and fill in fields of a record with new values. + * Process one or more name-value pairs for configuration options and + * fill in fields of a record with new values. * * Results: - * If all goes well then TCL_OK is returned and the old values of - * any modified objects are saved in *savePtr, if it isn't NULL (the - * caller must eventually call Tk_RestoreSavedOptions or - * Tk_FreeSavedOptions to free the contents of *savePtr). In - * addition, if maskPtr isn't NULL then *maskPtr is filled in with - * the OR of the typeMask bits from all modified options. If an - * error occurs then TCL_ERROR is returned and a message - * is left in interp's result unless interp is NULL; nothing is + * If all goes well then TCL_OK is returned and the old values of any + * modified objects are saved in *savePtr, if it isn't NULL (the caller + * must eventually call Tk_RestoreSavedOptions or Tk_FreeSavedOptions to + * free the contents of *savePtr). In addition, if maskPtr isn't NULL + * then *maskPtr is filled in with the OR of the typeMask bits from all + * modified options. If an error occurs then TCL_ERROR is returned and a + * message is left in interp's result unless interp is NULL; nothing is * saved in *savePtr or *maskPtr in this case. * * Side effects: - * The fields of recordPtr get filled in with object pointers - * from objc/objv. Old information in widgRec's fields gets - * recycled. Information may be left at *savePtr. + * The fields of recordPtr get filled in with object pointers from + * objc/objv. Old information in widgRec's fields gets recycled. + * Information may be left at *savePtr. * *-------------------------------------------------------------- */ @@ -1280,28 +1260,24 @@ SetOptionFromAny(interp, objPtr) int Tk_SetOptions(interp, recordPtr, optionTable, objc, objv, tkwin, savePtr, maskPtr) - Tcl_Interp *interp; /* Interpreter for error reporting. - * If NULL, then no error message is - * returned.*/ - char *recordPtr; /* The record to configure. */ - Tk_OptionTable optionTable; /* Describes valid options. */ - int objc; /* The number of elements in objv. */ - Tcl_Obj *CONST objv[]; /* Contains one or more name-value - * pairs. */ - Tk_Window tkwin; /* Window associated with the thing - * being configured; needed for some - * options (such as colors). */ - Tk_SavedOptions *savePtr; /* If non-NULL, the old values of - * modified options are saved here - * so that they can be restored - * after an error. */ - int *maskPtr; /* It non-NULL, this word is modified - * on a successful return to hold the - * bit-wise OR of the typeMask fields - * of all options that were modified - * by this call. Used by the caller - * to figure out which options - * actually changed. */ + Tcl_Interp *interp; /* Interpreter for error reporting. If NULL, + * then no error message is returned.*/ + char *recordPtr; /* The record to configure. */ + Tk_OptionTable optionTable; /* Describes valid options. */ + int objc; /* The number of elements in objv. */ + Tcl_Obj *CONST objv[]; /* Contains one or more name-value pairs. */ + Tk_Window tkwin; /* Window associated with the thing being + * configured; needed for some options (such + * as colors). */ + Tk_SavedOptions *savePtr; /* If non-NULL, the old values of modified + * options are saved here so that they can be + * restored after an error. */ + int *maskPtr; /* It non-NULL, this word is modified on a + * successful return to hold the bit-wise OR + * of the typeMask fields of all options that + * were modified by this call. Used by the + * caller to figure out which options actually + * changed. */ { OptionTable *tablePtr = (OptionTable *) optionTable; Option *optionPtr; @@ -1317,8 +1293,8 @@ Tk_SetOptions(interp, recordPtr, optionTable, objc, objv, tkwin, savePtr, lastSavePtr = savePtr; /* - * Scan through all of the arguments, processing those - * that match entries in the option table. + * Scan through all of the arguments, processing those that match entries + * in the option table. */ mask = 0; @@ -1342,12 +1318,11 @@ Tk_SetOptions(interp, recordPtr, optionTable, objc, objv, tkwin, savePtr, if ((savePtr != NULL) && (lastSavePtr->numItems >= TK_NUM_SAVED_OPTIONS)) { /* - * We've run out of space for saving old option values. Allocate + * We've run out of space for saving old option values. Allocate * more space. */ - newSavePtr = (Tk_SavedOptions *) ckalloc(sizeof( - Tk_SavedOptions)); + newSavePtr = (Tk_SavedOptions *) ckalloc(sizeof(Tk_SavedOptions)); newSavePtr->recordPtr = recordPtr; newSavePtr->tkwin = tkwin; newSavePtr->numItems = 0; @@ -1375,7 +1350,7 @@ Tk_SetOptions(interp, recordPtr, optionTable, objc, objv, tkwin, savePtr, } return TCL_OK; - error: + error: if (savePtr != NULL) { Tk_RestoreSavedOptions(savePtr); } @@ -1387,38 +1362,38 @@ Tk_SetOptions(interp, recordPtr, optionTable, objc, objv, tkwin, savePtr, * * Tk_RestoreSavedOptions -- * - * This procedure undoes the effect of a previous call to - * Tk_SetOptions by restoring all of the options to their value - * before the call to Tk_SetOptions. + * This function undoes the effect of a previous call to Tk_SetOptions by + * restoring all of the options to their value before the call to + * Tk_SetOptions. * * Results: * None. * * Side effects: - * The configutation record is restored and all the information - * stored in savePtr is freed. + * The configutation record is restored and all the information stored in + * savePtr is freed. * *---------------------------------------------------------------------- */ void Tk_RestoreSavedOptions(savePtr) - Tk_SavedOptions *savePtr; /* Holds saved option information; must - * have been passed to Tk_SetOptions. */ + Tk_SavedOptions *savePtr; /* Holds saved option information; must have + * been passed to Tk_SetOptions. */ { int i; Option *optionPtr; Tcl_Obj *newPtr; /* New object value of option, which we - * replace with old value and free. Taken - * from record. */ + * replace with old value and free. Taken from + * record. */ char *internalPtr; /* Points to internal value of option in * record. */ CONST Tk_OptionSpec *specPtr; /* - * Be sure to restore the options in the opposite order they were - * set. This is important because it's possible that the same - * option name was used twice in a single call to Tk_SetOptions. + * Be sure to restore the options in the opposite order they were set. + * This is important because it's possible that the same option name was + * used twice in a single call to Tk_SetOptions. */ if (savePtr->nextPtr != NULL) { @@ -1431,8 +1406,8 @@ Tk_RestoreSavedOptions(savePtr) specPtr = optionPtr->specPtr; /* - * First free the new value of the option, which is currently - * in the record. + * First free the new value of the option, which is currently in the + * record. */ if (specPtr->objOffset >= 0) { @@ -1462,100 +1437,83 @@ Tk_RestoreSavedOptions(savePtr) } if (specPtr->internalOffset >= 0) { switch (specPtr->type) { - case TK_OPTION_BOOLEAN: { - *((int *) internalPtr) - = *((int *) &savePtr->items[i].internalForm); - break; - } - case TK_OPTION_INT: { - *((int *) internalPtr) - = *((int *) &savePtr->items[i].internalForm); - break; - } - case TK_OPTION_DOUBLE: { - *((double *) internalPtr) - = *((double *) &savePtr->items[i].internalForm); - break; - } - case TK_OPTION_STRING: { - *((char **) internalPtr) - = *((char **) &savePtr->items[i].internalForm); - break; - } - case TK_OPTION_STRING_TABLE: { - *((int *) internalPtr) - = *((int *) &savePtr->items[i].internalForm); - break; - } - case TK_OPTION_COLOR: { - *((XColor **) internalPtr) - = *((XColor **) &savePtr->items[i].internalForm); - break; - } - case TK_OPTION_FONT: { - *((Tk_Font *) internalPtr) - = *((Tk_Font *) &savePtr->items[i].internalForm); - break; - } - case TK_OPTION_STYLE: { - *((Tk_Style *) internalPtr) - = *((Tk_Style *) &savePtr->items[i].internalForm); - break; - } - case TK_OPTION_BITMAP: { - *((Pixmap *) internalPtr) - = *((Pixmap *) &savePtr->items[i].internalForm); - break; - } - case TK_OPTION_BORDER: { - *((Tk_3DBorder *) internalPtr) - = *((Tk_3DBorder *) &savePtr->items[i].internalForm); - break; - } - case TK_OPTION_RELIEF: { - *((int *) internalPtr) - = *((int *) &savePtr->items[i].internalForm); - break; - } - case TK_OPTION_CURSOR: { - *((Tk_Cursor *) internalPtr) - = *((Tk_Cursor *) &savePtr->items[i].internalForm); - Tk_DefineCursor(savePtr->tkwin, - *((Tk_Cursor *) internalPtr)); - break; - } - case TK_OPTION_JUSTIFY: { - *((Tk_Justify *) internalPtr) - = *((Tk_Justify *) &savePtr->items[i].internalForm); - break; - } - case TK_OPTION_ANCHOR: { - *((Tk_Anchor *) internalPtr) - = *((Tk_Anchor *) &savePtr->items[i].internalForm); - break; - } - case TK_OPTION_PIXELS: { - *((int *) internalPtr) - = *((int *) &savePtr->items[i].internalForm); - break; - } - case TK_OPTION_WINDOW: { - *((Tk_Window *) internalPtr) - = *((Tk_Window *) &savePtr->items[i].internalForm); - break; - } - case TK_OPTION_CUSTOM: { - Tk_ObjCustomOption *custom = optionPtr->extra.custom; - if (custom->restoreProc != NULL) { - custom->restoreProc(custom->clientData, savePtr->tkwin, - internalPtr, - (char *)&savePtr->items[i].internalForm); - } - break; - } - default: { - Tcl_Panic("bad option type in Tk_RestoreSavedOptions"); + case TK_OPTION_BOOLEAN: + *((int *) internalPtr) = + *((int *) &savePtr->items[i].internalForm); + break; + case TK_OPTION_INT: + *((int *) internalPtr) = + *((int *) &savePtr->items[i].internalForm); + break; + case TK_OPTION_DOUBLE: + *((double *) internalPtr) = + *((double *) &savePtr->items[i].internalForm); + break; + case TK_OPTION_STRING: + *((char **) internalPtr) = + *((char **) &savePtr->items[i].internalForm); + break; + case TK_OPTION_STRING_TABLE: + *((int *) internalPtr) = + *((int *) &savePtr->items[i].internalForm); + break; + case TK_OPTION_COLOR: + *((XColor **) internalPtr) = + *((XColor **) &savePtr->items[i].internalForm); + break; + case TK_OPTION_FONT: + *((Tk_Font *) internalPtr) = + *((Tk_Font *) &savePtr->items[i].internalForm); + break; + case TK_OPTION_STYLE: + *((Tk_Style *) internalPtr) = + *((Tk_Style *) &savePtr->items[i].internalForm); + break; + case TK_OPTION_BITMAP: + *((Pixmap *) internalPtr) = + *((Pixmap *) &savePtr->items[i].internalForm); + break; + case TK_OPTION_BORDER: + *((Tk_3DBorder *) internalPtr) = + *((Tk_3DBorder *) &savePtr->items[i].internalForm); + break; + case TK_OPTION_RELIEF: + *((int *) internalPtr) = + *((int *) &savePtr->items[i].internalForm); + break; + case TK_OPTION_CURSOR: + *((Tk_Cursor *) internalPtr) = + *((Tk_Cursor *) &savePtr->items[i].internalForm); + Tk_DefineCursor(savePtr->tkwin, *((Tk_Cursor *) internalPtr)); + break; + case TK_OPTION_JUSTIFY: + *((Tk_Justify *) internalPtr) = + *((Tk_Justify *) &savePtr->items[i].internalForm); + break; + case TK_OPTION_ANCHOR: + *((Tk_Anchor *) internalPtr) = + *((Tk_Anchor *) &savePtr->items[i].internalForm); + break; + case TK_OPTION_PIXELS: + *((int *) internalPtr) = + *((int *) &savePtr->items[i].internalForm); + break; + case TK_OPTION_WINDOW: + *((Tk_Window *) internalPtr) = + *((Tk_Window *) &savePtr->items[i].internalForm); + break; + case TK_OPTION_CUSTOM: { + Tk_ObjCustomOption *custom = optionPtr->extra.custom; + + if (custom->restoreProc != NULL) { + custom->restoreProc(custom->clientData, + savePtr->tkwin, internalPtr, + (char *)&savePtr->items[i].internalForm); } + break; + } + default: + Tcl_Panic("bad option type in Tk_RestoreSavedOptions"); } } } @@ -1567,8 +1525,8 @@ Tk_RestoreSavedOptions(savePtr) * * Tk_FreeSavedOptions -- * - * Free all of the saved configuration option values from a - * previous call to Tk_SetOptions. + * Free all of the saved configuration option values from a previous call + * to Tk_SetOptions. * * Results: * None. @@ -1581,8 +1539,8 @@ Tk_RestoreSavedOptions(savePtr) void Tk_FreeSavedOptions(savePtr) - Tk_SavedOptions *savePtr; /* Contains options saved in a previous - * call to Tk_SetOptions. */ + Tk_SavedOptions *savePtr; /* Contains options saved in a previous call + * to Tk_SetOptions. */ { int count; Tk_SavedOption *savedOptionPtr; @@ -1615,8 +1573,8 @@ Tk_FreeSavedOptions(savePtr) * None. * * Side effects: - * All of the Tcl_Obj's in recordPtr that are controlled by - * configuration options in optionTable are freed. + * All of the Tcl_Obj's in recordPtr that are controlled by configuration + * options in optionTable are freed. * *---------------------------------------------------------------------- */ @@ -1624,8 +1582,8 @@ Tk_FreeSavedOptions(savePtr) /* ARGSUSED */ void Tk_FreeConfigOptions(recordPtr, optionTable, tkwin) - char *recordPtr; /* Record whose fields contain current - * values for options. */ + char *recordPtr; /* Record whose fields contain current values + * for options. */ Tk_OptionTable optionTable; /* Describes legal options. */ Tk_Window tkwin; /* Window associated with recordPtr; needed * for freeing some options. */ @@ -1633,7 +1591,7 @@ Tk_FreeConfigOptions(recordPtr, optionTable, tkwin) OptionTable *tablePtr; Option *optionPtr; int count; - Tcl_Obj **oldPtrPtr, *oldPtr; + Tcl_Obj **oldPtrPtr, *oldPtr; char *oldInternalPtr; CONST Tk_OptionSpec *specPtr; @@ -1672,14 +1630,14 @@ Tk_FreeConfigOptions(recordPtr, optionTable, tkwin) * * FreeResources -- * - * Free system resources associated with a configuration option, - * such as colors or fonts. + * Free system resources associated with a configuration option, such as + * colors or fonts. * * Results: * None. * * Side effects: - * Any system resources associated with objPtr are released. However, + * Any system resources associated with objPtr are released. However, * objPtr itself is not freed. * *---------------------------------------------------------------------- @@ -1692,7 +1650,7 @@ FreeResources(optionPtr, objPtr, internalPtr, tkwin) * as an object. */ char *internalPtr; /* A pointer to an internal representation for * the option's value, such as an int or - * (XColor *). Only valid if + * (XColor *). Only valid if * optionPtr->specPtr->internalOffset >= 0. */ Tk_Window tkwin; /* The window in which this option is used. */ { @@ -1700,86 +1658,85 @@ FreeResources(optionPtr, objPtr, internalPtr, tkwin) /* * If there exists an internal form for the value, use it to free - * resources (also zero out the internal form). If there is no - * internal form, then use the object form. + * resources (also zero out the internal form). If there is no internal + * form, then use the object form. */ internalFormExists = optionPtr->specPtr->internalOffset >= 0; switch (optionPtr->specPtr->type) { - case TK_OPTION_STRING: - if (internalFormExists) { - if (*((char **) internalPtr) != NULL) { - ckfree(*((char **) internalPtr)); - *((char **) internalPtr) = NULL; - } - } - break; - case TK_OPTION_COLOR: - if (internalFormExists) { - if (*((XColor **) internalPtr) != NULL) { - Tk_FreeColor(*((XColor **) internalPtr)); - *((XColor **) internalPtr) = NULL; - } - } else if (objPtr != NULL) { - Tk_FreeColorFromObj(tkwin, objPtr); - } - break; - case TK_OPTION_FONT: - if (internalFormExists) { - Tk_FreeFont(*((Tk_Font *) internalPtr)); - *((Tk_Font *) internalPtr) = NULL; - } else if (objPtr != NULL) { - Tk_FreeFontFromObj(tkwin, objPtr); - } - break; - case TK_OPTION_STYLE: - if (internalFormExists) { - Tk_FreeStyle(*((Tk_Style *) internalPtr)); - *((Tk_Style *) internalPtr) = NULL; - } else if (objPtr != NULL) { - Tk_FreeStyleFromObj(objPtr); - } - break; - case TK_OPTION_BITMAP: - if (internalFormExists) { - if (*((Pixmap *) internalPtr) != None) { - Tk_FreeBitmap(Tk_Display(tkwin), *((Pixmap *) internalPtr)); - *((Pixmap *) internalPtr) = None; - } - } else if (objPtr != NULL) { - Tk_FreeBitmapFromObj(tkwin, objPtr); - } - break; - case TK_OPTION_BORDER: - if (internalFormExists) { - if (*((Tk_3DBorder *) internalPtr) != NULL) { - Tk_Free3DBorder(*((Tk_3DBorder *) internalPtr)); - *((Tk_3DBorder *) internalPtr) = NULL; - } - } else if (objPtr != NULL) { - Tk_Free3DBorderFromObj(tkwin, objPtr); - } - break; - case TK_OPTION_CURSOR: - if (internalFormExists) { - if (*((Tk_Cursor *) internalPtr) != None) { - Tk_FreeCursor(Tk_Display(tkwin), - *((Tk_Cursor *) internalPtr)); - *((Tk_Cursor *) internalPtr) = None; - } - } else if (objPtr != NULL) { - Tk_FreeCursorFromObj(tkwin, objPtr); - } - break; - case TK_OPTION_CUSTOM: { - Tk_ObjCustomOption *custom = optionPtr->extra.custom; - if (internalFormExists && custom->freeProc != NULL) { - custom->freeProc(custom->clientData, tkwin, internalPtr); - } - break; - } - default: - break; + case TK_OPTION_STRING: + if (internalFormExists) { + if (*((char **) internalPtr) != NULL) { + ckfree(*((char **) internalPtr)); + *((char **) internalPtr) = NULL; + } + } + break; + case TK_OPTION_COLOR: + if (internalFormExists) { + if (*((XColor **) internalPtr) != NULL) { + Tk_FreeColor(*((XColor **) internalPtr)); + *((XColor **) internalPtr) = NULL; + } + } else if (objPtr != NULL) { + Tk_FreeColorFromObj(tkwin, objPtr); + } + break; + case TK_OPTION_FONT: + if (internalFormExists) { + Tk_FreeFont(*((Tk_Font *) internalPtr)); + *((Tk_Font *) internalPtr) = NULL; + } else if (objPtr != NULL) { + Tk_FreeFontFromObj(tkwin, objPtr); + } + break; + case TK_OPTION_STYLE: + if (internalFormExists) { + Tk_FreeStyle(*((Tk_Style *) internalPtr)); + *((Tk_Style *) internalPtr) = NULL; + } else if (objPtr != NULL) { + Tk_FreeStyleFromObj(objPtr); + } + break; + case TK_OPTION_BITMAP: + if (internalFormExists) { + if (*((Pixmap *) internalPtr) != None) { + Tk_FreeBitmap(Tk_Display(tkwin), *((Pixmap *) internalPtr)); + *((Pixmap *) internalPtr) = None; + } + } else if (objPtr != NULL) { + Tk_FreeBitmapFromObj(tkwin, objPtr); + } + break; + case TK_OPTION_BORDER: + if (internalFormExists) { + if (*((Tk_3DBorder *) internalPtr) != NULL) { + Tk_Free3DBorder(*((Tk_3DBorder *) internalPtr)); + *((Tk_3DBorder *) internalPtr) = NULL; + } + } else if (objPtr != NULL) { + Tk_Free3DBorderFromObj(tkwin, objPtr); + } + break; + case TK_OPTION_CURSOR: + if (internalFormExists) { + if (*((Tk_Cursor *) internalPtr) != None) { + Tk_FreeCursor(Tk_Display(tkwin), *((Tk_Cursor *) internalPtr)); + *((Tk_Cursor *) internalPtr) = None; + } + } else if (objPtr != NULL) { + Tk_FreeCursorFromObj(tkwin, objPtr); + } + break; + case TK_OPTION_CUSTOM: { + Tk_ObjCustomOption *custom = optionPtr->extra.custom; + if (internalFormExists && custom->freeProc != NULL) { + custom->freeProc(custom->clientData, tkwin, internalPtr); + } + break; + } + default: + break; } } @@ -1788,23 +1745,21 @@ FreeResources(optionPtr, objPtr, internalPtr, tkwin) * * Tk_GetOptionInfo -- * - * Returns a list object containing complete information about - * either a single option or all the configuration options in a - * table. + * Returns a list object containing complete information about either a + * single option or all the configuration options in a table. * * Results: - * This procedure normally returns a pointer to an object. - * If namePtr isn't NULL, then the result object is a list with - * five elements: the option's name, its database name, database - * class, default value, and current value. If the option is a - * synonym then the list will contain only two values: the option - * name and the name of the option it refers to. If namePtr is - * NULL, then information is returned for every option in the - * option table: the result will have one sub-list (in the form - * described above) for each option in the table. If an error - * occurs (e.g. because namePtr isn't valid) then NULL is returned - * and an error message will be left in interp's result unless - * interp is NULL. + + * This function normally returns a pointer to an object. If namePtr + * isn't NULL, then the result object is a list with five elements: the + * option's name, its database name, database class, default value, and + * current value. If the option is a synonym then the list will contain + * only two values: the option name and the name of the option it refers + * to. If namePtr is NULL, then information is returned for every option + * in the option table: the result will have one sub-list (in the form + * described above) for each option in the table. If an error occurs + * (e.g. because namePtr isn't valid) then NULL is returned and an error + * message will be left in interp's result unless interp is NULL. * * Side effects: * None. @@ -1814,17 +1769,17 @@ FreeResources(optionPtr, objPtr, internalPtr, tkwin) Tcl_Obj * Tk_GetOptionInfo(interp, recordPtr, optionTable, namePtr, tkwin) - Tcl_Interp *interp; /* Interpreter for error reporting. If - * NULL, then no error message is created. */ - char *recordPtr; /* Record whose fields contain current - * values for options. */ + Tcl_Interp *interp; /* Interpreter for error reporting. If NULL, + * then no error message is created. */ + char *recordPtr; /* Record whose fields contain current values + * for options. */ Tk_OptionTable optionTable; /* Describes all the legal options. */ - Tcl_Obj *namePtr; /* If non-NULL, the string value selects - * a single option whose info is to be - * returned. Otherwise info is returned for - * all options in optionTable. */ - Tk_Window tkwin; /* Window associated with recordPtr; needed - * to compute correct default value for some + Tcl_Obj *namePtr; /* If non-NULL, the string value selects a + * single option whose info is to be returned. + * Otherwise info is returned for all options + * in optionTable. */ + Tk_Window tkwin; /* Window associated with recordPtr; needed to + * compute correct default value for some * options. */ { Tcl_Obj *resultPtr; @@ -1833,8 +1788,8 @@ Tk_GetOptionInfo(interp, recordPtr, optionTable, namePtr, tkwin) int count; /* - * If information is only wanted for a single configuration - * spec, then handle that one spec specially. + * If information is only wanted for a single configuration spec, then + * handle that one spec specially. */ if (namePtr != NULL) { @@ -1849,8 +1804,8 @@ Tk_GetOptionInfo(interp, recordPtr, optionTable, namePtr, tkwin) } /* - * Loop through all the specs, creating a big list with all - * their information. + * Loop through all the specs, creating a big list with all their + * information. */ resultPtr = Tcl_NewListObj(0, (Tcl_Obj **) NULL); @@ -1869,12 +1824,12 @@ Tk_GetOptionInfo(interp, recordPtr, optionTable, namePtr, tkwin) * * GetConfigList -- * - * Create a valid Tcl list holding the configuration information - * for a single configuration option. + * 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. + * A Tcl list, dynamically allocated. The caller is expected to arrange + * for this list to be freed eventually. * * Side effects: * Memory is allocated. @@ -1884,8 +1839,8 @@ Tk_GetOptionInfo(interp, recordPtr, optionTable, namePtr, tkwin) static Tcl_Obj * GetConfigList(recordPtr, optionPtr, tkwin) - char *recordPtr; /* Pointer to record holding current - * values of configuration options. */ + char *recordPtr; /* Pointer to record holding current values of + * configuration options. */ Option *optionPtr; /* Pointer to information describing a * particular option. */ Tk_Window tkwin; /* Window corresponding to recordPtr. */ @@ -1893,7 +1848,7 @@ GetConfigList(recordPtr, optionPtr, tkwin) Tcl_Obj *listPtr, *elementPtr; listPtr = Tcl_NewListObj(0, (Tcl_Obj **) NULL); - Tcl_ListObjAppendElement((Tcl_Interp *) NULL, listPtr, + Tcl_ListObjAppendElement((Tcl_Interp *) NULL, listPtr, Tcl_NewStringObj(optionPtr->specPtr->optionName, -1)); if (optionPtr->specPtr->type == TK_OPTION_SYNONYM) { @@ -1946,14 +1901,13 @@ GetConfigList(recordPtr, optionPtr, tkwin) * * GetObjectForOption -- * - * This procedure is called to create an object that contains the - * value for an option. It is invoked by GetConfigList and - * Tk_GetOptionValue when only the internal form of an option is - * stored in the record. + * This function is called to create an object that contains the value + * for an option. It is invoked by GetConfigList and Tk_GetOptionValue + * when only the internal form of an option is stored in the record. * * Results: - * The return value is a pointer to a Tcl object. The caller - * must call Tcl_IncrRefCount on this object to preserve it. + * The return value is a pointer to a Tcl object. The caller must call + * Tcl_IncrRefCount on this object to preserve it. * * Side effects: * None. @@ -1963,11 +1917,11 @@ GetConfigList(recordPtr, optionPtr, tkwin) static Tcl_Obj * GetObjectForOption(recordPtr, optionPtr, tkwin) - char *recordPtr; /* Pointer to record holding current - * values of configuration options. */ - Option *optionPtr; /* Pointer to information describing an - * option whose internal value is stored - * in *recordPtr. */ + char *recordPtr; /* Pointer to record holding current values of + * configuration options. */ + Option *optionPtr; /* Pointer to information describing an option + * whose internal value is stored in + * *recordPtr. */ Tk_Window tkwin; /* Window corresponding to recordPtr. */ { Tcl_Obj *objPtr; @@ -1977,107 +1931,103 @@ GetObjectForOption(recordPtr, optionPtr, tkwin) internalPtr = recordPtr + optionPtr->specPtr->internalOffset; objPtr = NULL; switch (optionPtr->specPtr->type) { - case TK_OPTION_BOOLEAN: { - objPtr = Tcl_NewIntObj(*((int *) internalPtr)); - break; - } - case TK_OPTION_INT: { - objPtr = Tcl_NewIntObj(*((int *) internalPtr)); - break; - } - case TK_OPTION_DOUBLE: { - objPtr = Tcl_NewDoubleObj(*((double *) internalPtr)); - break; + case TK_OPTION_BOOLEAN: + objPtr = Tcl_NewIntObj(*((int *) internalPtr)); + break; + case TK_OPTION_INT: + objPtr = Tcl_NewIntObj(*((int *) internalPtr)); + break; + case TK_OPTION_DOUBLE: + objPtr = Tcl_NewDoubleObj(*((double *) internalPtr)); + break; + case TK_OPTION_STRING: + objPtr = Tcl_NewStringObj(*((char **) internalPtr), -1); + break; + case TK_OPTION_STRING_TABLE: + objPtr = Tcl_NewStringObj(((char **) optionPtr->specPtr->clientData)[ + *((int *) internalPtr)], -1); + break; + case TK_OPTION_COLOR: { + XColor *colorPtr = *((XColor **) internalPtr); + + if (colorPtr != NULL) { + objPtr = Tcl_NewStringObj(Tk_NameOfColor(colorPtr), -1); + } + break; + } + case TK_OPTION_FONT: { + Tk_Font tkfont = *((Tk_Font *) internalPtr); + + if (tkfont != NULL) { + objPtr = Tcl_NewStringObj(Tk_NameOfFont(tkfont), -1); } - case TK_OPTION_STRING: { - objPtr = Tcl_NewStringObj(*((char **) internalPtr), -1); - break; + break; + } + case TK_OPTION_STYLE: { + Tk_Style style = *((Tk_Style *) internalPtr); + + if (style != NULL) { + objPtr = Tcl_NewStringObj(Tk_NameOfStyle(style), -1); } - case TK_OPTION_STRING_TABLE: { + break; + } + case TK_OPTION_BITMAP: { + Pixmap pixmap = *((Pixmap *) internalPtr); + + if (pixmap != None) { objPtr = Tcl_NewStringObj( - ((char **) optionPtr->specPtr->clientData)[ - *((int *) internalPtr)], -1); - break; - } - case TK_OPTION_COLOR: { - XColor *colorPtr = *((XColor **) internalPtr); - if (colorPtr != NULL) { - objPtr = Tcl_NewStringObj(Tk_NameOfColor(colorPtr), -1); - } - break; - } - case TK_OPTION_FONT: { - Tk_Font tkfont = *((Tk_Font *) internalPtr); - if (tkfont != NULL) { - objPtr = Tcl_NewStringObj(Tk_NameOfFont(tkfont), -1); - } - break; - } - case TK_OPTION_STYLE: { - Tk_Style style = *((Tk_Style *) internalPtr); - if (style != NULL) { - objPtr = Tcl_NewStringObj(Tk_NameOfStyle(style), -1); - } - break; - } - case TK_OPTION_BITMAP: { - Pixmap pixmap = *((Pixmap *) internalPtr); - if (pixmap != None) { - objPtr = Tcl_NewStringObj(Tk_NameOfBitmap(Tk_Display(tkwin), - pixmap), -1); - } - break; - } - case TK_OPTION_BORDER: { - Tk_3DBorder border = *((Tk_3DBorder *) internalPtr); - if (border != NULL) { - objPtr = Tcl_NewStringObj(Tk_NameOf3DBorder(border), -1); - } - break; - } - case TK_OPTION_RELIEF: { - objPtr = Tcl_NewStringObj(Tk_NameOfRelief( - *((int *) internalPtr)), -1); - break; - } - case TK_OPTION_CURSOR: { - Tk_Cursor cursor = *((Tk_Cursor *) internalPtr); - if (cursor != None) { - objPtr = Tcl_NewStringObj( - Tk_NameOfCursor(Tk_Display(tkwin), cursor), -1); - } - break; + Tk_NameOfBitmap(Tk_Display(tkwin), pixmap), -1); } - case TK_OPTION_JUSTIFY: { - objPtr = Tcl_NewStringObj(Tk_NameOfJustify( - *((Tk_Justify *) internalPtr)), -1); - break; - } - case TK_OPTION_ANCHOR: { - objPtr = Tcl_NewStringObj(Tk_NameOfAnchor( - *((Tk_Anchor *) internalPtr)), -1); - break; - } - case TK_OPTION_PIXELS: { - objPtr = Tcl_NewIntObj(*((int *) internalPtr)); - break; - } - case TK_OPTION_WINDOW: { - Tk_Window tkwin = *((Tk_Window *) internalPtr); - if (tkwin != NULL) { - objPtr = Tcl_NewStringObj(Tk_PathName(tkwin), -1); - } - break; - } - case TK_OPTION_CUSTOM: { - Tk_ObjCustomOption *custom = optionPtr->extra.custom; - objPtr = custom->getProc(custom->clientData, tkwin, recordPtr, - optionPtr->specPtr->internalOffset); - break; + break; + } + case TK_OPTION_BORDER: { + Tk_3DBorder border = *((Tk_3DBorder *) internalPtr); + + if (border != NULL) { + objPtr = Tcl_NewStringObj(Tk_NameOf3DBorder(border), -1); } - default: { - Tcl_Panic("bad option type in GetObjectForOption"); + break; + } + case TK_OPTION_RELIEF: + objPtr = Tcl_NewStringObj(Tk_NameOfRelief(*((int *) internalPtr)), -1); + break; + case TK_OPTION_CURSOR: { + Tk_Cursor cursor = *((Tk_Cursor *) internalPtr); + + if (cursor != None) { + objPtr = Tcl_NewStringObj( + Tk_NameOfCursor(Tk_Display(tkwin), cursor), -1); } + break; + } + case TK_OPTION_JUSTIFY: + objPtr = Tcl_NewStringObj(Tk_NameOfJustify( + *((Tk_Justify *) internalPtr)), -1); + break; + case TK_OPTION_ANCHOR: + objPtr = Tcl_NewStringObj(Tk_NameOfAnchor( + *((Tk_Anchor *) internalPtr)), -1); + break; + case TK_OPTION_PIXELS: + objPtr = Tcl_NewIntObj(*((int *) internalPtr)); + break; + case TK_OPTION_WINDOW: { + Tk_Window tkwin = *((Tk_Window *) internalPtr); + + if (tkwin != NULL) { + objPtr = Tcl_NewStringObj(Tk_PathName(tkwin), -1); + } + break; + } + case TK_OPTION_CUSTOM: { + Tk_ObjCustomOption *custom = optionPtr->extra.custom; + + objPtr = custom->getProc(custom->clientData, tkwin, recordPtr, + optionPtr->specPtr->internalOffset); + break; + } + default: + Tcl_Panic("bad option type in GetObjectForOption"); } if (objPtr == NULL) { objPtr = Tcl_NewObj(); @@ -2090,14 +2040,13 @@ GetObjectForOption(recordPtr, optionPtr, tkwin) * * Tk_GetOptionValue -- * - * This procedure returns the current value of a configuration - * option. + * This function returns the current value of a configuration option. * * Results: - * The return value is the object holding the current value of - * the option given by namePtr. If no such option exists, then - * the return value is NULL and an error message is left in - * interp's result (if interp isn't NULL). + * The return value is the object holding the current value of the option + * given by namePtr. If no such option exists, then the return value is + * NULL and an error message is left in interp's result (if interp isn't + * NULL). * * Side effects: * None. @@ -2107,14 +2056,14 @@ GetObjectForOption(recordPtr, optionPtr, tkwin) Tcl_Obj * Tk_GetOptionValue(interp, recordPtr, optionTable, namePtr, tkwin) - Tcl_Interp *interp; /* Interpreter for error reporting. If - * NULL then no messages are provided for + Tcl_Interp *interp; /* Interpreter for error reporting. If NULL + * then no messages are provided for * errors. */ - char *recordPtr; /* Record whose fields contain current - * values for options. */ + char *recordPtr; /* Record whose fields contain current values + * for options. */ Tk_OptionTable optionTable; /* Describes legal options. */ - Tcl_Obj *namePtr; /* Gives the command-line name for the - * option whose value is to be returned. */ + Tcl_Obj *namePtr; /* Gives the command-line name for the option + * whose value is to be returned. */ Tk_Window tkwin; /* Window corresponding to recordPtr. */ { OptionTable *tablePtr = (OptionTable *) optionTable; @@ -2129,16 +2078,16 @@ Tk_GetOptionValue(interp, recordPtr, optionTable, namePtr, tkwin) optionPtr = optionPtr->extra.synonymPtr; } if (optionPtr->specPtr->objOffset >= 0) { - resultPtr = *((Tcl_Obj **) (recordPtr + optionPtr->specPtr->objOffset)); + resultPtr = *((Tcl_Obj **) (recordPtr+optionPtr->specPtr->objOffset)); if (resultPtr == NULL) { /* * This option has a null value and is represented by a null - * object pointer. We can't return the null pointer, since that - * would indicate an error. Instead, return a new empty object. + * object pointer. We can't return the null pointer, since that + * would indicate an error. Instead, return a new empty object. */ - + resultPtr = Tcl_NewObj(); - } + } } else { resultPtr = GetObjectForOption(recordPtr, optionPtr, tkwin); } @@ -2150,19 +2099,17 @@ Tk_GetOptionValue(interp, recordPtr, optionTable, namePtr, tkwin) * * TkDebugConfig -- * - * This is a debugging procedure that returns information about - * one of the configuration tables that currently exists for an - * interpreter. + * This is a debugging function that returns information about one of the + * configuration tables that currently exists for an interpreter. * * Results: - * If the specified table exists in the given interpreter, then a - * list is returned describing the table and any other tables that - * it chains to: for each table there will be three list elements - * giving the reference count for the table, the number of elements - * in the table, and the command-line name for the first option - * in the table. If the table doesn't exist in the interpreter - * then an empty object is returned. The reference count for the - * returned object is 0. + * If the specified table exists in the given interpreter, then a list is + * returned describing the table and any other tables that it chains to: + * for each table there will be three list elements giving the reference + * count for the table, the number of elements in the table, and the + * command-line name for the first option in the table. If the table + * doesn't exist in the interpreter then an empty object is returned. + * The reference count for the returned object is 0. * * Side effects: * None. @@ -2172,11 +2119,11 @@ Tk_GetOptionValue(interp, recordPtr, optionTable, namePtr, tkwin) Tcl_Obj * TkDebugConfig(interp, table) - Tcl_Interp *interp; /* Interpreter in which the table is - * defined. */ - Tk_OptionTable table; /* Table about which information is to - * be returned. May not necessarily - * exist in the interpreter anymore. */ + Tcl_Interp *interp; /* Interpreter in which the table is + * defined. */ + Tk_OptionTable table; /* Table about which information is to be + * returned. May not necessarily exist in the + * interpreter anymore. */ { OptionTable *tablePtr = (OptionTable *) table; Tcl_HashTable *hashTablePtr; @@ -2192,8 +2139,8 @@ TkDebugConfig(interp, table) } /* - * Scan all the tables for this interpreter to make sure that the - * one we want still is valid. + * Scan all the tables for this interpreter to make sure that the one we + * want still is valid. */ for (hashEntryPtr = Tcl_FirstHashEntry(hashTablePtr, &search); @@ -2207,11 +2154,18 @@ TkDebugConfig(interp, table) Tcl_NewIntObj(tablePtr->numOptions)); Tcl_ListObjAppendElement((Tcl_Interp *) NULL, objPtr, Tcl_NewStringObj( - tablePtr->options[0].specPtr->optionName, - -1)); + tablePtr->options[0].specPtr->optionName, -1)); } break; } } return objPtr; } + +/* + * Local Variables: + * mode: c + * c-basic-offset: 4 + * fill-column: 78 + * End: + */ |