129 lines
3.5 KiB
C
129 lines
3.5 KiB
C
/*
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get_fname.c
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Copyright (c) 2009 - 2022
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https://tuxpaint.org/
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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(See COPYING.txt)
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Last updated: December 11, 2022
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$Id$
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "get_fname.h"
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#include "debug.h"
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#include "compiler.h"
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/*
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See tuxpaint.c for the OS-specific defaults.
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* DIR_SAVE: Where does the user's drawings get saved?
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This is where their saved files (PNG) are stored, and where the
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"current_id.txt" file is saved (so we can re-load the latest
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picture upon a subsequent launch). Generally, end users aren't
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expected to access the files in here directly, but they can.
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The defaults may be overridden with the "--savedir" option.
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* DIR_DATA: Where is the user's data directory?
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This is where local (user-specific) fonts, brushes, stamps,
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starter images, etc., can be found. End users only put things
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here if they wish to extend their Tux Paint experience.
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The defaults may be overridden with the "--datadir" option.
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* DIR_EXPORT: Where does Tux Paint export drawings / animations?
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This is where single images, or animated GIF slideshows,
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will be exported. It is expected that this is an obvious,
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and easily-accessible place for end users to retrieve the exports.
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The defaults may be overridden with the "--exportdir" option.
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* DIR_EXPORT_PARENT: The parent of the directory
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specified by DIR_EXPORT. (e.g., if /home/username/Pictures/TuxPaint/
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is our export dir., we may need to make .../Pictures first,
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the first time we export something.)
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*/
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const char *savedir;
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const char *datadir;
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const char *exportdir;
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// FIXME: We shouldn't be allocating memory all the time.
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// There should be distinct functions for each directory.
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// There should be distinct functions for each thread,
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// for caller-provided space, and maybe callee strdup.
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// That's at most 4 functions per Tux Paint thread.
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/**
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* Construct a filepath, given a filename, and what kind of file
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* (data file, or saved images?)
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*
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* @param name Filaneme
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* @param kind What kind of file? (DIR_SAVE, DIR_DATA, or DIR_EXPORT?)
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* @return Full fillpath
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*/
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char *get_fname(const char *const name, int kind)
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{
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char f[512];
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// const char *restrict const dir;
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const char *dir;
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if (kind == DIR_SAVE)
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{
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dir = savedir;
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}
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else if (kind == DIR_DATA)
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{
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dir = datadir;
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}
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else if (kind == DIR_EXPORT || kind == DIR_EXPORT_PARENT)
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{
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dir = exportdir;
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}
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snprintf(f, sizeof(f), "%s%c%s", dir, (*name) ? '/' : '\0', /* Some mkdir()'s don't like trailing slashes */
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name);
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if (kind == DIR_EXPORT_PARENT)
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{
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int len, i, stop;
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stop = -1;
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len = strlen(f);
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for (i = len - 1; i >= 0 && stop == -1; i--)
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{
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if (f[i] == '/')
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stop = i;
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}
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if (stop != -1)
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{
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f[stop] = '\0';
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}
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}
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return strdup(f);
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}
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