487 lines
12 KiB
C
487 lines
12 KiB
C
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/*
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* tkFileFilter.c --
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*
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* Process the -filetypes option for the file dialogs on Windows and the
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* Mac.
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*
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* Copyright (c) 1996 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: @(#) tkFileFilter.c 1.6 97/04/30 15:55:35
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*
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*/
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#include "tkInt.h"
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#include "tkFileFilter.h"
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static int AddClause _ANSI_ARGS_((
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Tcl_Interp * interp, FileFilter * filterPtr,
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char * patternsStr, char * ostypesStr,
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int isWindows));
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static void FreeClauses _ANSI_ARGS_((FileFilter * filterPtr));
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static void FreeGlobPatterns _ANSI_ARGS_((
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FileFilterClause * clausePtr));
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static void FreeMacFileTypes _ANSI_ARGS_((
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FileFilterClause * clausePtr));
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static FileFilter * GetFilter _ANSI_ARGS_((FileFilterList * flistPtr,
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char * name));
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/*
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*----------------------------------------------------------------------
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*
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* TkInitFileFilters --
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*
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* Initializes a FileFilterList data structure. A FileFilterList
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* must be initialized EXACTLY ONCE before any calls to
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* TkGetFileFilters() is made. The usual flow of control is:
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* TkInitFileFilters(&flist);
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* TkGetFileFilters(&flist, ...);
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* TkGetFileFilters(&flist, ...);
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* ...
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* TkFreeFileFilters(&flist);
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*
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* Results:
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* None.
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*
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* Side effects:
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* The fields in flistPtr are initialized.
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*----------------------------------------------------------------------
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*/
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void
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TkInitFileFilters(flistPtr)
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FileFilterList * flistPtr; /* The structure to be initialized. */
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{
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flistPtr->filters = NULL;
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flistPtr->filtersTail = NULL;
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flistPtr->numFilters = 0;
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}
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/*
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*----------------------------------------------------------------------
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*
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* TkGetFileFilters --
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*
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* This function is called by the Mac and Windows implementation
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* of tk_getOpenFile and tk_getSaveFile to translate the string
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* value of the -filetypes option of into an easy-to-parse C
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* structure (flistPtr). The caller of this function will then use
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* flistPtr to perform filetype matching in a platform specific way.
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*
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* flistPtr must be initialized (See comments in TkInitFileFilters).
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*
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* Results:
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* A standard TCL return value.
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*
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* Side effects:
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* The fields in flistPtr are changed according to string.
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*----------------------------------------------------------------------
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*/
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int
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TkGetFileFilters(interp, flistPtr, string, isWindows)
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Tcl_Interp *interp; /* Interpreter to use for error reporting. */
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FileFilterList * flistPtr; /* Stores the list of file filters. */
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char * string; /* Value of the -filetypes option. */
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int isWindows; /* True if we are running on Windows. */
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{
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int listArgc;
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char ** listArgv = NULL;
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char ** typeInfo = NULL;
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int code = TCL_OK;
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int i;
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if (Tcl_SplitList(interp, string, &listArgc, &listArgv) != TCL_OK) {
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return TCL_ERROR;
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}
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if (listArgc == 0) {
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goto done;
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}
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/*
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* Free the filter information that have been allocated the previous
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* time -- the -filefilters option may have been used more than once in
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* the command line.
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*/
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TkFreeFileFilters(flistPtr);
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for (i = 0; i<listArgc; i++) {
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/*
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* Each file type should have two or three elements: the first one
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* is the name of the type and the second is the filter of the type.
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* The third is the Mac OSType ID, but we don't care about them here.
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*/
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int count;
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FileFilter * filterPtr;
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if (Tcl_SplitList(interp, listArgv[i], &count, &typeInfo) != TCL_OK) {
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code = TCL_ERROR;
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goto done;
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}
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if (count != 2 && count != 3) {
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Tcl_AppendResult(interp, "bad file type \"", listArgv[i], "\", ",
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"should be \"typeName {extension ?extensions ...?} ",
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"?{macType ?macTypes ...?}?\"", NULL);
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code = TCL_ERROR;
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goto done;
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}
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filterPtr = GetFilter(flistPtr, typeInfo[0]);
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if (count == 2) {
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code = AddClause(interp, filterPtr, typeInfo[1], NULL,
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isWindows);
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} else {
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code = AddClause(interp, filterPtr, typeInfo[1], typeInfo[2],
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isWindows);
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}
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if (code != TCL_OK) {
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goto done;
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}
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if (typeInfo) {
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ckfree((char*)typeInfo);
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}
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typeInfo = NULL;
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}
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done:
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if (typeInfo) {
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ckfree((char*)typeInfo);
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}
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if (listArgv) {
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ckfree((char*)listArgv);
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}
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return code;
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}
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/*
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*----------------------------------------------------------------------
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*
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* TkFreeFileFilters --
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*
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* Frees the malloc'ed file filter information.
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*
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* Results:
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* None.
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*
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* Side effects:
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* The fields allocated by TkGetFileFilters() are freed.
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*----------------------------------------------------------------------
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*/
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void
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TkFreeFileFilters(flistPtr)
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FileFilterList * flistPtr; /* List of file filters to free */
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{
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FileFilter * filterPtr, *toFree;
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filterPtr=flistPtr->filters;
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while (filterPtr) {
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toFree = filterPtr;
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filterPtr=filterPtr->next;
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FreeClauses(toFree);
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ckfree((char*)toFree->name);
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ckfree((char*)toFree);
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}
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flistPtr->filters = NULL;
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}
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/*
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*----------------------------------------------------------------------
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*
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* AddClause --
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*
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* Add one FileFilterClause to filterPtr.
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*
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* Results:
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* A standard TCL result.
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*
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* Side effects:
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* The list of filter clauses are updated in filterPtr.
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*----------------------------------------------------------------------
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*/
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static int AddClause(interp, filterPtr, patternsStr, ostypesStr, isWindows)
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Tcl_Interp * interp; /* Interpreter to use for error reporting. */
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FileFilter * filterPtr; /* Stores the new filter clause */
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char * patternsStr; /* A TCL list of glob patterns. */
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char * ostypesStr; /* A TCL list of Mac OSType strings. */
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int isWindows; /* True if we are running on Windows; False
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* if we are running on the Mac; Glob
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* patterns need to be processed differently
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* on these two platforms */
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{
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char ** globList = NULL;
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int globCount;
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char ** ostypeList = NULL;
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int ostypeCount;
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FileFilterClause * clausePtr;
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int i;
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int code = TCL_OK;
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if (Tcl_SplitList(interp, patternsStr, &globCount, &globList)!= TCL_OK) {
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code = TCL_ERROR;
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goto done;
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}
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if (ostypesStr != NULL) {
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if (Tcl_SplitList(interp, ostypesStr, &ostypeCount, &ostypeList)
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!= TCL_OK) {
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code = TCL_ERROR;
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goto done;
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}
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for (i=0; i<ostypeCount; i++) {
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if (strlen(ostypeList[i]) != 4) {
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Tcl_AppendResult(interp, "bad Macintosh file type \"",
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ostypeList[i], "\"", NULL);
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code = TCL_ERROR;
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goto done;
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}
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}
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}
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/*
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* Add the clause into the list of clauses
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*/
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clausePtr = (FileFilterClause*)ckalloc(sizeof(FileFilterClause));
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clausePtr->patterns = NULL;
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clausePtr->patternsTail = NULL;
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clausePtr->macTypes = NULL;
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clausePtr->macTypesTail = NULL;
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if (filterPtr->clauses == NULL) {
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filterPtr->clauses = filterPtr->clausesTail = clausePtr;
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} else {
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filterPtr->clausesTail->next = clausePtr;
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filterPtr->clausesTail = clausePtr;
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}
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clausePtr->next = NULL;
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if (globCount > 0 && globList != NULL) {
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for (i=0; i<globCount; i++) {
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GlobPattern * globPtr = (GlobPattern*)ckalloc(sizeof(GlobPattern));
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int len;
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len = (strlen(globList[i]) + 1) * sizeof(char);
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if (globList[i][0] && globList[i][0] != '*') {
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/*
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* Prepend a "*" to patterns that do not have a leading "*"
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*/
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globPtr->pattern = (char*)ckalloc(len+1);
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globPtr->pattern[0] = '*';
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strcpy(globPtr->pattern+1, globList[i]);
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}
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else if (isWindows) {
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if (strcmp(globList[i], "*") == 0) {
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globPtr->pattern = (char*)ckalloc(4*sizeof(char));
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strcpy(globPtr->pattern, "*.*");
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}
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else if (strcmp(globList[i], "") == 0) {
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/*
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* An empty string means "match all files with no
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* extensions"
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* BUG: "*." actually matches with all files on Win95
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*/
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globPtr->pattern = (char*)ckalloc(3*sizeof(char));
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strcpy(globPtr->pattern, "*.");
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}
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else {
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globPtr->pattern = (char*)ckalloc(len);
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strcpy(globPtr->pattern, globList[i]);
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}
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} else {
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globPtr->pattern = (char*)ckalloc(len);
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strcpy(globPtr->pattern, globList[i]);
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}
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/*
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* Add the glob pattern into the list of patterns.
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*/
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if (clausePtr->patterns == NULL) {
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clausePtr->patterns = clausePtr->patternsTail = globPtr;
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} else {
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clausePtr->patternsTail->next = globPtr;
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clausePtr->patternsTail = globPtr;
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}
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globPtr->next = NULL;
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}
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}
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if (ostypeCount > 0 && ostypeList != NULL) {
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for (i=0; i<ostypeCount; i++) {
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MacFileType * mfPtr = (MacFileType*)ckalloc(sizeof(MacFileType));
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memcpy(&mfPtr->type, ostypeList[i], sizeof(OSType));
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/*
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* Add the Mac type pattern into the list of Mac types
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*/
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if (clausePtr->macTypes == NULL) {
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clausePtr->macTypes = clausePtr->macTypesTail = mfPtr;
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} else {
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clausePtr->macTypesTail->next = mfPtr;
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clausePtr->macTypesTail = mfPtr;
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}
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mfPtr->next = NULL;
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}
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}
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done:
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if (globList) {
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ckfree((char*)globList);
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}
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if (ostypeList) {
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ckfree((char*)ostypeList);
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}
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return code;
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}
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/*
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*----------------------------------------------------------------------
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*
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* GetFilter --
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*
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* Add one FileFilter to flistPtr.
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*
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* Results:
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* A standard TCL result.
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|||
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*
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* Side effects:
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|||
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* The list of filters are updated in flistPtr.
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*----------------------------------------------------------------------
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*/
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static FileFilter * GetFilter(flistPtr, name)
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FileFilterList * flistPtr; /* The FileFilterList that contains the
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* newly created filter */
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char * name; /* Name of the filter. It is usually displayed
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|||
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* in the "File Types" listbox in the file
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|||
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* dialogs. */
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{
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FileFilter * filterPtr;
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for (filterPtr=flistPtr->filters; filterPtr; filterPtr=filterPtr->next) {
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if (strcmp(filterPtr->name, name)==0) {
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return filterPtr;
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}
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}
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filterPtr = (FileFilter*)ckalloc(sizeof(FileFilter));
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filterPtr->clauses = NULL;
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|||
|
|
filterPtr->clausesTail = NULL;
|
|||
|
|
filterPtr->name = (char*)ckalloc((strlen(name)+1) * sizeof(char));
|
|||
|
|
strcpy(filterPtr->name, name);
|
|||
|
|
|
|||
|
|
if (flistPtr->filters == NULL) {
|
|||
|
|
flistPtr->filters = flistPtr->filtersTail = filterPtr;
|
|||
|
|
} else {
|
|||
|
|
flistPtr->filtersTail->next = filterPtr;
|
|||
|
|
flistPtr->filtersTail = filterPtr;
|
|||
|
|
}
|
|||
|
|
filterPtr->next = NULL;
|
|||
|
|
|
|||
|
|
++flistPtr->numFilters;
|
|||
|
|
return filterPtr;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
*----------------------------------------------------------------------
|
|||
|
|
*
|
|||
|
|
* FreeClauses --
|
|||
|
|
*
|
|||
|
|
* Frees the malloc'ed file type clause
|
|||
|
|
*
|
|||
|
|
* Results:
|
|||
|
|
* None.
|
|||
|
|
*
|
|||
|
|
* Side effects:
|
|||
|
|
* The list of clauses in filterPtr->clauses are freed.
|
|||
|
|
*----------------------------------------------------------------------
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
static void
|
|||
|
|
FreeClauses(filterPtr)
|
|||
|
|
FileFilter * filterPtr; /* FileFilter whose clauses are to be freed */
|
|||
|
|
{
|
|||
|
|
FileFilterClause * clausePtr, * toFree;
|
|||
|
|
|
|||
|
|
clausePtr = filterPtr->clauses;
|
|||
|
|
while (clausePtr) {
|
|||
|
|
toFree = clausePtr;
|
|||
|
|
clausePtr=clausePtr->next;
|
|||
|
|
FreeGlobPatterns(toFree);
|
|||
|
|
FreeMacFileTypes(toFree);
|
|||
|
|
ckfree((char*)toFree);
|
|||
|
|
}
|
|||
|
|
filterPtr->clauses = NULL;
|
|||
|
|
filterPtr->clausesTail = NULL;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
*----------------------------------------------------------------------
|
|||
|
|
*
|
|||
|
|
* FreeGlobPatterns --
|
|||
|
|
*
|
|||
|
|
* Frees the malloc'ed glob patterns in a clause
|
|||
|
|
*
|
|||
|
|
* Results:
|
|||
|
|
* None.
|
|||
|
|
*
|
|||
|
|
* Side effects:
|
|||
|
|
* The list of glob patterns in clausePtr->patterns are freed.
|
|||
|
|
*----------------------------------------------------------------------
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
static void
|
|||
|
|
FreeGlobPatterns(clausePtr)
|
|||
|
|
FileFilterClause * clausePtr;/* The clause whose patterns are to be freed*/
|
|||
|
|
{
|
|||
|
|
GlobPattern * globPtr, * toFree;
|
|||
|
|
|
|||
|
|
globPtr = clausePtr->patterns;
|
|||
|
|
while (globPtr) {
|
|||
|
|
toFree = globPtr;
|
|||
|
|
globPtr=globPtr->next;
|
|||
|
|
|
|||
|
|
ckfree((char*)toFree->pattern);
|
|||
|
|
ckfree((char*)toFree);
|
|||
|
|
}
|
|||
|
|
clausePtr->patterns = NULL;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
*----------------------------------------------------------------------
|
|||
|
|
*
|
|||
|
|
* FreeMacFileTypes --
|
|||
|
|
*
|
|||
|
|
* Frees the malloc'ed Mac file types in a clause
|
|||
|
|
*
|
|||
|
|
* Results:
|
|||
|
|
* None.
|
|||
|
|
*
|
|||
|
|
* Side effects:
|
|||
|
|
* The list of Mac file types in clausePtr->macTypes are freed.
|
|||
|
|
*----------------------------------------------------------------------
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
static void
|
|||
|
|
FreeMacFileTypes(clausePtr)
|
|||
|
|
FileFilterClause * clausePtr; /* The clause whose mac types are to be
|
|||
|
|
* freed */
|
|||
|
|
{
|
|||
|
|
MacFileType * mfPtr, * toFree;
|
|||
|
|
|
|||
|
|
mfPtr = clausePtr->macTypes;
|
|||
|
|
while (mfPtr) {
|
|||
|
|
toFree = mfPtr;
|
|||
|
|
mfPtr=mfPtr->next;
|
|||
|
|
ckfree((char*)toFree);
|
|||
|
|
}
|
|||
|
|
clausePtr->macTypes = NULL;
|
|||
|
|
}
|