Imported Debian patch 0.84-2debian/0.84-2

1 files changed, 536 insertions, 0 deletions

diff --git a/src/xsane-preferences.c b/src/xsane-preferences.c
new file mode 100644
index 0000000..4ceec06
--- /dev/null
+++ b/src/xsane-preferences.c
@@ -0,0 +1,536 @@
+/* xsane -- a graphical (X11, gtk) scanner-oriented SANE frontend
+
+   xsane-preferences.c
+
+   Oliver Rauch <Oliver.Rauch@rauch-domain.de>
+   Copyright (C) 1998-2002 Oliver Rauch
+   This file is part of the XSANE package.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */ 
+
+/* --------------------------------------------------------------------- */
+
+#include "xsane.h"
+#include "xsane-preferences.h"
+#include "xsane-rc-io.h"
+
+#ifdef HAVE_LIBTIFF
+# include <tiffio.h>
+#else
+# define COMPRESSION_PACKBITS	32773
+# define COMPRESSION_JPEG	7
+# define COMPRESSION_CCITTFAX3	2
+#endif
+
+/* --------------------------------------------------------------------- */
+
+#define POFFSET(field)	((char *) &((Preferences *) 0)->field - (char *) 0)
+#define PFIELD(p,offset,type)	(*((type *)(((char *)(p)) + (offset))))
+
+#define PRTOFFSET(field)	((char *) &((Preferences_printer_t *) 0)->field - (char *) 0)
+#define PAREAOFFSET(field)	((char *) &((Preferences_preset_area_t *) 0)->field - (char *) 0)
+#define PMEDIUMOFFSET(field)	((char *) &((Preferences_medium_t *) 0)->field - (char *) 0)
+
+/* --------------------------------------------------------------------- */
+
+/* *** ATTENTION *** : DO NOT ENTER STRINGS HERE !!! */
+
+Preferences preferences =
+  {
+       0,		/* xsane-version string */
+       0,		/* default path to temporary directory (not defined here) */
+       0,		/* no default filename */
+       0137,		/* image umask (permission mask for -rw-r------) */
+       0027,		/* directory umask (permission mask for -rwxr-x----) */
+       0,		/* no fax project */
+       0,		/* no default faxcommand */
+       0,		/* no default fax receiver option */
+       0,		/* no default fax postscript option */
+       0,		/* no default fax normal option */
+       0,		/* no default fax fine option */
+       0,		/* no fax viewer */
+     215.70,            /* fax_width:  width of fax paper in mm */
+     296.98,		/* fax_height: height of fax paper in mm */
+       0.0,             /* fax_leftoffset */
+       0.0,             /* fax_bottomoffset */
+       0,               /* no default from email address */
+       0,               /* no default reply to email address */
+       0,               /* no default smtp server */
+       25,              /* default smtp port */
+       0,               /* no pop3 authentification */
+       0,               /* no default pop3 server */
+       110,             /* default pop3 port */
+       0,               /* no default pop3 user */
+       0,               /* no default pop3 passsword */
+       0,		/* no mail project */
+       0,		/* no mail viewer */
+       0,		/* no default ocrcommand */
+       0,		/* no default ocr input file option */
+       0,		/* no default ocr output file option */
+       0,		/* no doc viewer */
+      80.0,		/* jpeg_quality */
+       7.0,		/* png_compression */
+ COMPRESSION_PACKBITS,	/* tiff_compression16_nr */
+ COMPRESSION_JPEG,	/* tiff_compression8_nr */
+ COMPRESSION_CCITTFAX3,	/* tiff_compression1_nr */
+       1,		/* save_devprefs_at_exit */
+       1,		/* overwrite_warning */
+       1,		/* skip_existing_numbers */
+       0,		/* reduce_16bit_to_8bit */
+       1,		/* filename_counter_step */
+       4,		/* filename_counter_len */
+       1,		/* tooltips enabled */
+       1,		/* (dont) show histogram */
+       1,		/* (dont) show gamma */
+       1,		/* (dont) show standard options */
+       0,		/* (dont) show advanced options */
+       0,		/* (dont) show resolution list */
+      10.0,		/* length unit */
+       1,		/* main window fixed (1) or scrolled (0) */
+       0,		/* preview_own_cmap */
+       1.5,		/* preview_oversampling */
+       1.0,		/* preview_gamma */
+       1.0,		/* preview_gamma_red */
+       1.0,		/* preview_gamma_green */
+       1.0,		/* preview_gamma_blue */
+       1,		/* disable_gimp_preview_gamma */
+       12,		/* preview_gamma_input_bits */
+       3,		/* preview_pipette_range */
+       1.6,		/* gamma */
+       1.0,		/* gamma red */
+       1.0,		/* gamma green */
+       1.0,		/* gamma blue */
+       0.0,		/* brightness */
+       0.0,		/* brightness red */
+       0.0,		/* brightness green */
+       0.0,		/* brightness blue */
+       0.0,		/* contrast */
+       0.0,		/* contrast red */
+       0.0,		/* contrast green */
+       0.0,		/* contrast blue */
+       1,		/* rgb default */
+       0,		/* negative */
+       1,		/* autoenhance_gamma: change gamma value with autoenhance button */
+       1,		/* preselect_scanarea after preview scan */
+       1,		/* auto_correct_colors after preview scan */
+ GTK_UPDATE_DISCONTINUOUS, /* update policy for gtk frontend sliders */
+       0,		/* psrotate: rotate in postscript mode (landscape) */
+       0,		/* preset_area_definitions */
+       0,		/* printernr */
+       0		/* printerdefinitions */
+  };
+
+/* --------------------------------------------------------------------- */
+
+static struct
+  {
+    SANE_String name;
+    void (*codec) (Wire *w, void *p, long offset);
+    long offset;
+  }
+desc[] =
+  {
+    {"xsane-version",			xsane_rc_pref_string,	POFFSET(xsane_version_str)},
+    {"tmp-path",			xsane_rc_pref_string,	POFFSET(tmp_path)},
+    {"filename",			xsane_rc_pref_string,	POFFSET(filename)},
+    {"image-umask",			xsane_rc_pref_int,	POFFSET(image_umask)},
+    {"directory-umask",			xsane_rc_pref_int,	POFFSET(directory_umask)},
+    {"fax-project",			xsane_rc_pref_string,	POFFSET(fax_project)},
+    {"fax-command",			xsane_rc_pref_string,	POFFSET(fax_command)},
+    {"fax-receiver-option",		xsane_rc_pref_string,	POFFSET(fax_receiver_option)},
+    {"fax-postscript-option",		xsane_rc_pref_string,	POFFSET(fax_postscript_option)},
+    {"fax-normal-option",		xsane_rc_pref_string,	POFFSET(fax_normal_option)},
+    {"fax-fine-option",			xsane_rc_pref_string,	POFFSET(fax_fine_option)},
+    {"fax-viewer",			xsane_rc_pref_string,	POFFSET(fax_viewer)},
+    {"fax-width",			xsane_rc_pref_double,	POFFSET(fax_width)},
+    {"fax-height",			xsane_rc_pref_double,	POFFSET(fax_height)},
+    {"fax-left-offset",			xsane_rc_pref_double,	POFFSET(fax_leftoffset)},
+    {"fax-bottom-offset",		xsane_rc_pref_double,	POFFSET(fax_bottomoffset)},
+    {"mail-from",			xsane_rc_pref_string,	POFFSET(mail_from)},
+    {"mail-reply-to",			xsane_rc_pref_string,	POFFSET(mail_reply_to)},
+    {"mail-smtp-server",		xsane_rc_pref_string,	POFFSET(mail_smtp_server)},
+    {"mail-smtp-port",			xsane_rc_pref_int,	POFFSET(mail_smtp_port)},
+    {"mail-pop3-authentification",	xsane_rc_pref_int,	POFFSET(mail_pop3_authentification)},
+    {"mail-pop3-server",		xsane_rc_pref_string,	POFFSET(mail_pop3_server)},
+    {"mail-pop3-port",			xsane_rc_pref_int,	POFFSET(mail_pop3_port)},
+    {"mail-pop3-user",			xsane_rc_pref_string,	POFFSET(mail_pop3_user)},
+    {"mail-pop3-pass",			xsane_rc_pref_string,	POFFSET(mail_pop3_pass)},
+    {"mail-project",			xsane_rc_pref_string,	POFFSET(mail_project)},
+    {"mail-viewert",			xsane_rc_pref_string,	POFFSET(mail_viewer)},
+    {"ocr-command",			xsane_rc_pref_string,	POFFSET(ocr_command)},
+    {"ocr-inputfile-option",		xsane_rc_pref_string,	POFFSET(ocr_inputfile_option)},
+    {"ocr-outputfile-options",		xsane_rc_pref_string,	POFFSET(ocr_outputfile_option)},
+    {"doc-viewer",			xsane_rc_pref_string,	POFFSET(doc_viewer)},
+    {"jpeg-quality",			xsane_rc_pref_double,	POFFSET(jpeg_quality)},
+    {"png-compression",			xsane_rc_pref_double, 	POFFSET(png_compression)},
+    {"tiff-compression16_nr",		xsane_rc_pref_int, 	POFFSET(tiff_compression16_nr)},
+    {"tiff-compression8_nr",		xsane_rc_pref_int, 	POFFSET(tiff_compression8_nr)},
+    {"tiff-compression1_nr",		xsane_rc_pref_int, 	POFFSET(tiff_compression1_nr)},
+    {"save-devprefs-at-exit",		xsane_rc_pref_int,	POFFSET(save_devprefs_at_exit)},
+    {"overwrite-warning",		xsane_rc_pref_int,	POFFSET(overwrite_warning)},
+    {"skip-existing-numbers",		xsane_rc_pref_int,	POFFSET(skip_existing_numbers)},
+    {"reduce-16bit-to8bit",		xsane_rc_pref_int,	POFFSET(reduce_16bit_to_8bit)},
+    {"filename-counter-step",		xsane_rc_pref_int,	POFFSET(filename_counter_step)},
+    {"filename-counter-len",		xsane_rc_pref_int,	POFFSET(filename_counter_len)},
+    {"tool-tips",			xsane_rc_pref_int,	POFFSET(tooltips_enabled)},
+    {"show-histogram",			xsane_rc_pref_int,	POFFSET(show_histogram)},
+    {"show-gamma",			xsane_rc_pref_int,	POFFSET(show_gamma)},
+    {"show-standard-options",		xsane_rc_pref_int,	POFFSET(show_standard_options)},
+    {"show-advanced-options",		xsane_rc_pref_int,	POFFSET(show_advanced_options)},
+    {"show-resolution-list",		xsane_rc_pref_int,	POFFSET(show_resolution_list)},
+    {"length-unit",			xsane_rc_pref_double,	POFFSET(length_unit)},
+    {"main-window-fixed",		xsane_rc_pref_int,	POFFSET(main_window_fixed)},
+    {"preview-own-cmap",		xsane_rc_pref_int,	POFFSET(preview_own_cmap)},
+    {"preview-oversampling",		xsane_rc_pref_double,	POFFSET(preview_oversampling)},
+    {"preview-gamma",			xsane_rc_pref_double,	POFFSET(preview_gamma)},
+    {"preview-gamma-red",		xsane_rc_pref_double,	POFFSET(preview_gamma_red)},
+    {"preview-gamma-green",		xsane_rc_pref_double,	POFFSET(preview_gamma_green)},
+    {"preview-gamma-blue",		xsane_rc_pref_double,	POFFSET(preview_gamma_blue)},
+    {"disable-gimp-preview-gamma",	xsane_rc_pref_int,	POFFSET(disable_gimp_preview_gamma)},
+    {"preview-gamma-input-bits",	xsane_rc_pref_int,	POFFSET(preview_gamma_input_bits)},
+    {"preview-pipette-range",		xsane_rc_pref_int,	POFFSET(preview_pipette_range)},
+    {"gamma",				xsane_rc_pref_double,	POFFSET(xsane_gamma)},
+    {"gamma-red",			xsane_rc_pref_double,	POFFSET(xsane_gamma_red)},
+    {"gamma-green",			xsane_rc_pref_double,	POFFSET(xsane_gamma_green)},
+    {"gamma-blue",			xsane_rc_pref_double,	POFFSET(xsane_gamma_blue)},
+    {"brightness",			xsane_rc_pref_double,	POFFSET(xsane_brightness)},
+    {"brightness-red",			xsane_rc_pref_double,	POFFSET(xsane_brightness_red)},
+    {"brightness-green",		xsane_rc_pref_double,	POFFSET(xsane_brightness_green)},
+    {"brightness-blue",			xsane_rc_pref_double,	POFFSET(xsane_brightness_blue)},
+    {"contrast",			xsane_rc_pref_double,	POFFSET(xsane_contrast)},
+    {"contrast-red",			xsane_rc_pref_double,	POFFSET(xsane_contrast_red)},
+    {"contrast-green",			xsane_rc_pref_double,	POFFSET(xsane_contrast_green)},
+    {"contrast-blue",			xsane_rc_pref_double,	POFFSET(xsane_contrast_blue)},
+    {"rgb-default",			xsane_rc_pref_int,	POFFSET(xsane_rgb_default)},
+    {"negative",			xsane_rc_pref_int,	POFFSET(xsane_negative)},
+    {"auto-enhance-gamma",		xsane_rc_pref_int,	POFFSET(auto_enhance_gamma)},
+    {"preselect-scanarea",		xsane_rc_pref_int,	POFFSET(preselect_scanarea)},
+    {"auto-correct-colors",		xsane_rc_pref_int,	POFFSET(auto_correct_colors)},
+    {"gtk-update-policy",		xsane_rc_pref_int,	POFFSET(gtk_update_policy)},
+    {"postscript-rotate",		xsane_rc_pref_int,	POFFSET(psrotate)},
+    {"preset-area-definitions",		xsane_rc_pref_int,	POFFSET(preset_area_definitions)},
+    {"medium-definitions",		xsane_rc_pref_int,	POFFSET(medium_definitions)},
+    {"printernr",			xsane_rc_pref_int,	POFFSET(printernr)},
+    {"printerdefinitions",		xsane_rc_pref_int,	POFFSET(printerdefinitions)}
+  };
+
+/* --------------------------------------------------------------------- */
+
+static struct
+  {
+    SANE_String name;
+    void (*codec) (Wire *w, void *p, long offset);
+    long offset;
+  }
+desc_printer[] =
+  {
+    {"printer-name",			xsane_rc_pref_string,	PRTOFFSET(name)},
+    {"printer-command",			xsane_rc_pref_string,	PRTOFFSET(command)},
+    {"printer-copy-number-option",	xsane_rc_pref_string,	PRTOFFSET(copy_number_option)},
+    {"printer-lineart-resolution",	xsane_rc_pref_int,	PRTOFFSET(lineart_resolution)},
+    {"printer-grayscale-resolution",	xsane_rc_pref_int,	PRTOFFSET(grayscale_resolution)},
+    {"printer-color-resolution",	xsane_rc_pref_int,	PRTOFFSET(color_resolution)},
+    {"printer-width",			xsane_rc_pref_double,	PRTOFFSET(width)},
+    {"printer-height",			xsane_rc_pref_double,	PRTOFFSET(height)},
+    {"printer-left-offset",		xsane_rc_pref_double,	PRTOFFSET(leftoffset)},
+    {"printer-bottom-offset",		xsane_rc_pref_double,	PRTOFFSET(bottomoffset)},
+    {"printer-gamma",			xsane_rc_pref_double,	PRTOFFSET(gamma)},
+    {"printer-gamma-red",		xsane_rc_pref_double,	PRTOFFSET(gamma_red)},
+    {"printer-gamma-green",		xsane_rc_pref_double,	PRTOFFSET(gamma_green)},
+    {"printer-gamma-blue",		xsane_rc_pref_double,	PRTOFFSET(gamma_blue)}
+  };
+
+/* --------------------------------------------------------------------- */
+
+static struct
+  {
+    SANE_String name;
+    void (*codec) (Wire *w, void *p, long offset);
+    long offset;
+  }
+desc_preset_area[] =
+  {
+    {"preset-area-name",		xsane_rc_pref_string,	PAREAOFFSET(name)},
+    {"preset-area-xoffset",		xsane_rc_pref_double,	PAREAOFFSET(xoffset)},
+    {"preset-area-yoffset",		xsane_rc_pref_double,	PAREAOFFSET(yoffset)},
+    {"preset-area-width",		xsane_rc_pref_double,	PAREAOFFSET(width)},
+    {"preset-area-height",		xsane_rc_pref_double,	PAREAOFFSET(height)}
+  };
+
+/* --------------------------------------------------------------------- */
+
+static struct
+  {
+    SANE_String name;
+    void (*codec) (Wire *w, void *p, long offset);
+    long offset;
+  }
+desc_medium[] =
+  {
+    {"medium-name",			xsane_rc_pref_string,	PMEDIUMOFFSET(name)},
+    {"medium-shadow-gray",		xsane_rc_pref_double,	PMEDIUMOFFSET(shadow_gray)},
+    {"medium-shadow-red",		xsane_rc_pref_double,	PMEDIUMOFFSET(shadow_red)},
+    {"medium-shadow-green",		xsane_rc_pref_double,	PMEDIUMOFFSET(shadow_green)},
+    {"medium-shadow-blue",		xsane_rc_pref_double,	PMEDIUMOFFSET(shadow_blue)},
+    {"medium-highlight-gray",		xsane_rc_pref_double,	PMEDIUMOFFSET(highlight_gray)},
+    {"medium-highlight-red",		xsane_rc_pref_double,	PMEDIUMOFFSET(highlight_red)},
+    {"medium-highlight-green",		xsane_rc_pref_double,	PMEDIUMOFFSET(highlight_green)},
+    {"medium-highlight-blue",		xsane_rc_pref_double,	PMEDIUMOFFSET(highlight_blue)},
+    {"medium-gamma-gray",		xsane_rc_pref_double,	PMEDIUMOFFSET(gamma_gray)},
+    {"medium-gamma-red",		xsane_rc_pref_double,	PMEDIUMOFFSET(gamma_red)},
+    {"medium-gamma-green",		xsane_rc_pref_double,	PMEDIUMOFFSET(gamma_green)},
+    {"medium-gamma-blue",		xsane_rc_pref_double,	PMEDIUMOFFSET(gamma_blue)},
+    {"medium-negative",			xsane_rc_pref_int,	PMEDIUMOFFSET(negative)}
+  };
+
+/* --------------------------------------------------------------------- */
+
+void preferences_save(int fd)
+{
+ Wire w;
+ int i, n;
+
+  DBG(DBG_proc, "preferences_save\n");
+
+  w.io.fd = fd;
+  w.io.read = read;
+  w.io.write = write;
+  xsane_rc_io_w_init(&w);
+  xsane_rc_io_w_set_dir(&w, WIRE_ENCODE);
+
+  for (i = 0; i < NELEMS(desc); ++i)
+  {
+    DBG(DBG_info2, "saving preferences value for %s\n", desc[i].name);
+    xsane_rc_io_w_string(&w, &desc[i].name);
+    (*desc[i].codec) (&w, &preferences, desc[i].offset);
+  }
+
+  /* save printers */
+
+  n=0;
+
+  while (n < preferences.printerdefinitions)
+  {
+    DBG(DBG_info2, "saving preferences printer definition %s\n", preferences.printer[n]->name);
+    for (i = 0; i < NELEMS(desc_printer); ++i)
+    {
+      xsane_rc_io_w_string(&w, &desc_printer[i].name);
+      (*desc_printer[i].codec) (&w, preferences.printer[n], desc_printer[i].offset);
+    }
+    n++;
+  }
+
+  /* save preset areas */
+
+  n=1; /* start with number 1, number 0 (full size) is not saved */
+
+  while (n < preferences.preset_area_definitions)
+  {
+    DBG(DBG_info2, "saving preferences preset area definition %s\n", preferences.preset_area[n]->name);
+    for (i = 0; i < NELEMS(desc_preset_area); ++i)
+    {
+      xsane_rc_io_w_string(&w, &desc_preset_area[i].name);
+      (*desc_preset_area[i].codec) (&w, preferences.preset_area[n], desc_preset_area[i].offset);
+    }
+    n++;
+  }
+
+  /* save mediums */
+
+  n=0;
+
+  while (n < preferences.medium_definitions)
+  {
+    DBG(DBG_info2, "saving preferences medium definition %s\n", preferences.medium[n]->name);
+    for (i = 0; i < NELEMS(desc_medium); ++i)
+    {
+      xsane_rc_io_w_string(&w, &desc_medium[i].name);
+      (*desc_medium[i].codec) (&w, preferences.medium[n], desc_medium[i].offset);
+    }
+    n++;
+  }
+
+
+
+  xsane_rc_io_w_set_dir(&w, WIRE_DECODE);	/* flush it out */
+  xsane_rc_io_w_exit(&w);
+}
+
+/* --------------------------------------------------------------------- */
+
+void preferences_restore(int fd)
+{
+ SANE_String name;
+ Wire w;
+ int i, n;
+
+  DBG(DBG_proc, "preferences_restore\n");
+
+  w.io.fd = fd;
+  w.io.read = read;
+  w.io.write = write;
+  xsane_rc_io_w_init(&w);
+  xsane_rc_io_w_set_dir(&w, WIRE_DECODE);
+
+  while (1)
+  {
+    xsane_rc_io_w_space(&w, 3);
+    if (w.status)
+    {
+      xsane_rc_io_w_exit(&w);
+     return;
+    }
+
+    xsane_rc_io_w_string(&w, &name);
+    if (w.status || !name)
+    {
+      xsane_rc_io_w_exit(&w);
+     return;
+    }
+
+    for (i = 0; i < NELEMS (desc); ++i)
+    {
+      if (strcmp(name, desc[i].name) == 0)
+      {
+        DBG(DBG_info2, "reading preferences value for %s\n", desc[i].name);
+        (*desc[i].codec) (&w, &preferences, desc[i].offset);
+        break;
+      }
+    }
+    if (!strcmp(name, "printerdefinitions"))
+    {
+      break;
+    }
+  }
+
+  preferences.printer = calloc(preferences.printerdefinitions, sizeof(void *)); 
+  n=0;
+  while (n < preferences.printerdefinitions)
+  {
+    preferences.printer[n] = calloc(sizeof(Preferences_printer_t), 1);
+    for (i = 0; i < NELEMS(desc_printer); ++i)
+    {
+      xsane_rc_io_w_space(&w, 3);
+      if (w.status)
+      {
+        xsane_rc_io_w_exit(&w);
+       return;
+      }
+
+      xsane_rc_io_w_string(&w, &name);
+      if (w.status || !name)
+      {
+        xsane_rc_io_w_exit(&w);
+       return;
+      }
+
+      if (strcmp(name, desc_printer[i].name) == 0)
+      {
+        (*desc_printer[i].codec) (&w, preferences.printer[n], desc_printer[i].offset);
+      }
+      else
+      {
+        break;
+      }
+    }
+    DBG(DBG_info2, "preferences printer definition %s read\n", preferences.printer[n]->name);
+    n++;
+  }
+
+  if (preferences.preset_area_definitions)
+  {
+    preferences.preset_area = calloc(preferences.preset_area_definitions, sizeof(void *)); 
+
+    preferences.preset_area[0] = calloc(sizeof(Preferences_preset_area_t), 1);
+    preferences.preset_area[0]->name    = strdup(_(MENU_ITEM_SURFACE_FULL_SIZE));
+    preferences.preset_area[0]->xoffset = 0.0;
+    preferences.preset_area[0]->yoffset = 0.0;
+    preferences.preset_area[0]->width   = INF;
+    preferences.preset_area[0]->height  = INF;
+
+    n=1;
+    while (n < preferences.preset_area_definitions)
+    {
+      preferences.preset_area[n] = calloc(sizeof(Preferences_preset_area_t), 1);
+      for (i = 0; i < NELEMS(desc_preset_area); ++i)
+      {
+        xsane_rc_io_w_space(&w, 3);
+        if (w.status)
+        {
+          xsane_rc_io_w_exit(&w);
+         return;
+        }
+
+        xsane_rc_io_w_string(&w, &name);
+        if (w.status || !name)
+        {
+          xsane_rc_io_w_exit(&w);
+         return;
+        }
+
+        if (strcmp(name, desc_preset_area[i].name) == 0)
+        {
+          (*desc_preset_area[i].codec) (&w, preferences.preset_area[n], desc_preset_area[i].offset);
+        }
+        else
+        {
+          break;
+        }
+      }
+      DBG(DBG_info2, "preferences preset area definition %s read\n", preferences.preset_area[n]->name);
+      n++;
+    }
+  }
+
+  if (preferences.medium_definitions)
+  {
+    preferences.medium = calloc(preferences.medium_definitions, sizeof(void *)); 
+
+    n=0;
+    while (n < preferences.medium_definitions)
+    {
+      preferences.medium[n] = calloc(sizeof(Preferences_medium_t), 1);
+      for (i = 0; i < NELEMS(desc_medium); ++i)
+      {
+        xsane_rc_io_w_space(&w, 3);
+        if (w.status)
+        {
+          xsane_rc_io_w_exit(&w);
+         return;
+        }
+
+        xsane_rc_io_w_string(&w, &name);
+        if (w.status || !name)
+        {
+          xsane_rc_io_w_exit(&w);
+         return;
+        }
+
+        if (strcmp(name, desc_medium[i].name) == 0)
+        {
+          (*desc_medium[i].codec) (&w, preferences.medium[n], desc_medium[i].offset);
+        }
+        else
+        {
+          break;
+        }
+      }
+      DBG(DBG_info2, "preferences medium definition %s read\n", preferences.medium[n]->name);
+      n++;
+    }
+  }
+
+  xsane_rc_io_w_exit(&w);
+}