gui/src/util.cc

   1 ///
   2 /// \file       util.cc
   3 ///             GUI utility functions
   4 ///
   5
   6 /*
   7     Copyright (C) 2007-2008, Net Direct Inc. (http://www.netdirect.ca/)
   8
   9     This program is free software; you can redistribute it and/or modify
  10     it under the terms of the GNU General Public License as published by
  11     the Free Software Foundation; either version 2 of the License, or
  12     (at your option) any later version.
  13
  14     This program is distributed in the hope that it will be useful,
  15     but WITHOUT ANY WARRANTY; without even the implied warranty of
  16     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  17
  18     See the GNU General Public License in the COPYING file at the
  19     root directory of this project for more details.
  20 */
  21
  22 #include "util.h"
  23 #include <sys/types.h>
  24 #include <sys/stat.h>
  25 #include <unistd.h>
  26 #include <errno.h>
  27 #include <string.h>
  28
  29 Glib::RefPtr<Gnome::Glade::Xml> LoadXml(const char *filename)
  30 {
  31         // try loading from global glade directory first
  32         try {
  33                 std::string file = BARRYBACKUP_GLADEDIR;
  34                 file += filename;
  35
  36                 Glib::RefPtr<Gnome::Glade::Xml> ref = Gnome::Glade::Xml::create(file);
  37                 return ref;
  38         }
  39         catch( Gnome::Glade::XmlError &e ) {
  40                 // oops... let's fall through, and try the local directory
  41         }
  42
  43         // this will throw XmlError on failure, and we let the caller worry
  44         // about that
  45         return Gnome::Glade::Xml::create(filename);
  46 }
  47
  48 /// Checks that the path in path exists, and if not, creates it.
  49 /// Returns false if unable to create path, true if ok.
  50 bool CheckPath(const std::string &path, std::string *perr)
  51 {
  52         if( path.size() == 0 ) {
  53                 if( perr )
  54                         *perr = "path is empty!";
  55                 return false;
  56         }
  57
  58         if( access(path.c_str(), F_OK) == 0 )
  59                 return true;
  60
  61         std::string base;
  62         std::string::size_type slash = 0;
  63         while( (slash = path.find('/', slash + 1)) != std::string::npos ) {
  64                 base = path.substr(0, slash);
  65                 if( access(base.c_str(), F_OK) != 0 ) {
  66                         if( mkdir(base.c_str(), 0755) == -1 ) {
  67                                 if( perr ) {
  68                                         *perr = "mkdir(" + base + ") failed: ";
  69                                         *perr += strerror(errno);
  70                                 }
  71                                 return false;
  72                         }
  73                 }
  74         }
  75         if( mkdir(path.c_str(), 0755) == -1 ) {
  76                 if( perr ) {
  77                         *perr = "last mkdir(" + path + ") failed: ";
  78                         *perr += strerror(errno);
  79                 }
  80                 return false;
  81         }
  82         return true;
  83 }
  84
  85 std::string GetPath(const std::string &filename)
  86 {
  87         std::string path;
  88         std::string::size_type pos = filename.rfind('/');
  89         if( pos != std::string::npos ) {
  90                 path = filename.substr(0, pos);
  91         }
  92         return path;
  93 }
  94