gnome/gmetadata.c

   1 /* Convenience functions for metadata handling in the MIdnight Commander
   2  *
   3  * Copyright (C) 1998 The Free Software Foundation
   4  *
   5  * Author: Federico Mena <federico@nuclecu.unam.mx>
   6  */
   7
   8 #include <config.h>
   9 #include "global.h"
  10 #include <libgnome/libgnome.h>
  11 #include "gmetadata.h"
  12 #include <sys/stat.h>
  13 #include "../vfs/vfs.h"
  14
  15
  16 #define ICON_POSITION "icon-position"
  17
  18
  19 /**
  20  * gmeta_get_icon_pos
  21  * @filename:   The file under ~/desktop for which to get the icon position
  22  * @x:          The x position will be stored here.  Must be non-NULL.
  23  * @y:          The y position will be stored here.  Must be non-NULL.
  24  *
  25  * Checks if the specified file has an icon position associated to it.  If so, returns TRUE and
  26  * fills in the x and y values.  Otherwise it returns FALSE and x and y are not modified.
  27  *
  28  * Icon position information is expected to be saved using the gmeta_set_icon_pos() function.
  29  */
  30 int
  31 gmeta_get_icon_pos (char *filename, int *x, int *y)
  32 {
  33         int size;
  34         char *buf;
  35         int tx, ty;
  36
  37         g_return_val_if_fail (filename != NULL, FALSE);
  38         g_return_val_if_fail (x != NULL, FALSE);
  39         g_return_val_if_fail (y != NULL, FALSE);
  40
  41         if (gnome_metadata_get (filename, ICON_POSITION, &size, &buf) != 0)
  42                 return FALSE;
  43
  44         if (!buf){
  45                 g_warning ("Invalid metadata for \"%s\"'s icon position, using auto-placement", filename);
  46                 return FALSE;
  47         }
  48
  49
  50         if ((sscanf (buf, "%d%d", &tx, &ty) != 2)) {
  51                 g_free (buf);
  52                 return FALSE;
  53         }
  54         g_free (buf);
  55         *x = tx;
  56         *y = ty;
  57         return TRUE;
  58 }
  59
  60 /**
  61  * gmeta_set_icon_pos
  62  * @filename:   The file for which to save icon position information
  63  * @x:          X position of the icon
  64  * @y:          Y position of the icon
  65  *
  66  * Saves the icon position information for the specified file.  This is expected to be read back
  67  * using the gmeta_get_icon_pos() function.
  68  */
  69 void
  70 gmeta_set_icon_pos (char *filename, int x, int y)
  71 {
  72         char buf[100];
  73
  74         g_return_if_fail (filename != NULL);
  75
  76         g_snprintf (buf, sizeof (buf), "%d %d", x, y);
  77
  78         if (gnome_metadata_set (filename, ICON_POSITION, strlen (buf) + 1, buf) != 0)
  79                 g_warning ("Error setting the icon position metadata for \"%s\"", filename);
  80 }
  81
  82 /**
  83  * gmeta_del_icon_pos:
  84  * @filename: The filename for which to delete icon position information.
  85  *
  86  * Deletes the icon position information for the specified file.
  87  **/
  88 void
  89 gmeta_del_icon_pos (char *filename)
  90 {
  91         g_return_if_fail (filename != NULL);
  92
  93         gnome_metadata_remove (filename, ICON_POSITION);
  94 }
  95