gui/about.c

   1 /* -*- Mode: C ; c-basic-offset: 2 -*- */
   2 /*
   3  * LADI Session Handler (ladish)
   4  *
   5  * Copyright (C) 2010 Nedko Arnaudov <nedko@arnaudov.name>
   6  *
   7  **************************************************************************
   8  * This file contains the code that implements the about dialog
   9  **************************************************************************
  10  *
  11  * LADI Session Handler is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * LADI Session Handler is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with LADI Session Handler. If not, see <http://www.gnu.org/licenses/>
  23  * or write to the Free Software Foundation, Inc.,
  24  * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  25  */
  26
  27 #include <sys/types.h>
  28 #include <sys/stat.h>
  29 #include <unistd.h>
  30 #include <fcntl.h>
  31
  32 #include "about.h"
  33 #include "pixbuf.h"
  34 #include "gtk_builder.h"
  35
  36 #define ABOUT_DIALOG_LOGO     "ladish-logo-128x128.png"
  37
  38 static char * read_file_contents(const char * filename)
  39 {
  40   int fd;
  41   struct stat st;
  42   char * buffer;
  43
  44   if (stat(filename, &st) != 0)
  45   {
  46     return NULL;
  47   }
  48
  49   fd = open(filename, O_RDONLY);
  50   if (fd == -1)
  51   {
  52     return NULL;
  53   }
  54
  55   buffer = malloc(st.st_size + 1);
  56   if (buffer == NULL)
  57   {
  58     close(fd);
  59     return NULL;
  60   }
  61
  62   if (read(fd, buffer, (size_t)st.st_size) != (ssize_t)st.st_size)
  63   {
  64     free(buffer);
  65     buffer = NULL;
  66   }
  67   else
  68   {
  69     buffer[st.st_size] = 0;
  70   }
  71
  72   close(fd);
  73
  74   return buffer;
  75 }
  76
  77 void show_about(void)
  78 {
  79   GtkWidget * dialog;
  80   GdkPixbuf * pixbuf;
  81   const char * authors[] = {"Nedko Arnaudov", "Nikita Zlobin", NULL};
  82   const char * artists[] = {"Lapo Calamandrei", "Nadejda Pancheva-Arnaudova", NULL};
  83   char * license;
  84
  85   pixbuf =  load_pixbuf(ABOUT_DIALOG_LOGO);
  86   license = read_file_contents(DATA_DIR "/COPYING");
  87
  88   dialog = get_gtk_builder_widget("about_win");
  89   gtk_about_dialog_set_version(GTK_ABOUT_DIALOG(dialog), PACKAGE_VERSION);
  90
  91   if (pixbuf != NULL)
  92   {
  93     gtk_about_dialog_set_logo(GTK_ABOUT_DIALOG(dialog), pixbuf);
  94     g_object_unref(pixbuf);
  95   }
  96
  97   if (license != NULL)
  98   {
  99     gtk_about_dialog_set_license(GTK_ABOUT_DIALOG(dialog), license);
 100     free(license);
 101   }
 102
 103   gtk_about_dialog_set_authors(GTK_ABOUT_DIALOG(dialog), authors);
 104   gtk_about_dialog_set_artists(GTK_ABOUT_DIALOG(dialog), artists);
 105
 106   gtk_widget_show(dialog);
 107   gtk_dialog_run(GTK_DIALOG(dialog));
 108   gtk_widget_hide(dialog);
 109 }