mirror of
https://github.com/fltk/fltk.git
synced 2026-05-26 01:46:58 +08:00
Greg Ercolano
0693c70f57
A lot of code touched because low level functions needed to pass up
error messages reliably, and this had to propagate up the entire
driver hierarchy.
Tested OK *in English* on:
> Linux
> OSX 10.10.x
> Windows VS2017
> Windows mingw64
I have no way to test on Android, but it might work.
TODO: Needs testing in other languages to verify proper UTF8 error messages,
esp. with Windows VS, due to complexities with FormatMessage() -- see get_ms_errmsg()
82 lines
2.1 KiB
C++
82 lines
2.1 KiB
C++
//
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// Directory detection routines for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2010 by Bill Spitzak and others.
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//
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// This library is free software. Distribution and use rights are outlined in
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// the file "COPYING" which should have been included with this file. If this
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// file is missing or damaged, see the license at:
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//
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// https://www.fltk.org/COPYING.php
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//
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// Please see the following page on how to report bugs and issues:
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//
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// https://www.fltk.org/bugs.php
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//
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// Used by fl_file_chooser
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#include "flstring.h"
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#include "Fl_System_Driver.H"
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#include <FL/filename.H>
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#include <FL/Fl.H>
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/**
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Determines if a file exists and is a directory from its filename.
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\code
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#include <FL/filename.H>
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[..]
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fl_filename_isdir("/etc"); // returns non-zero
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fl_filename_isdir("/etc/hosts"); // returns 0
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\endcode
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\param[in] n the filename to parse
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\return non zero if file exists and is a directory, zero otherwise
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*/
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int fl_filename_isdir(const char* n) {
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return Fl::system_driver()->filename_isdir(n);
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}
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/**
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\cond DriverDev
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\addtogroup DriverDeveloper
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\{
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*/
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/**
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filename_isdir_quick() is a private function that checks for a
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trailing slash and assumes that the passed name is a directory if
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it finds one. This function is used by Fl_File_Browser and
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Fl_File_Chooser to avoid extra stat() calls, but is not supported
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outside of FLTK...
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*/
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int Fl_System_Driver::filename_isdir_quick(const char* n) {
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// Do a quick optimization for filenames with a trailing slash...
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if (*n && n[strlen(n) - 1] == '/') return 1;
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return filename_isdir(n);
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}
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// TODO: This should probably handle errors better (like permission denied) -erco
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int Fl_System_Driver::filename_isdir(const char* n) {
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struct stat s;
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char fn[FL_PATH_MAX];
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int length;
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length = (int) strlen(n);
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// Matt: Just in case, we strip the slash for other operating
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// systems as well, avoid bugs by sloppy implementations
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// of "stat".
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if (length > 1 && n[length - 1] == '/') {
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length --;
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memcpy(fn, n, length);
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fn[length] = '\0';
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n = fn;
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}
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return !stat(n, &s) && (s.st_mode & S_IFDIR);
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}
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/**
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\}
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\endcond
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*/
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