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config.c

/*
 * wdm - WINGs display manager
 * Copyright (C) 2003 Alexey Voinov <voins@voins.program.ru>
 * Copyright (C) 1998 Gene Czarcinski
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * config.c: read configuration for wdmLogin
 */
#include <wdmconfig.h>
#include <wdmlib.h>
#include <wdmLogin.h>
#include <stdlib.h>
#include <string.h>

static Bool WDMCheckPLGeometry(WMPropList *pl, void *def, void *target);

static WMRect default_geometry = {{INT_MIN, INT_MIN}, {530, 240}};

static WDMDictionaryStruct wdmLogin_config_struct[] = 
{
      {"geometry", WDMCheckPLGeometry, &default_geometry,
            offsetof(WDMLoginConfig, geometry)},
#ifdef USE_AA
      {"aa", WDMCheckPLBool, (void*)False,
            offsetof(WDMLoginConfig, aaenabled)},
      {"multibyte", WDMCheckPLBool, (void*)True,
            offsetof(WDMLoginConfig, multibyte)},
#endif
      {"animations", WDMCheckPLBool, False,
            offsetof(WDMLoginConfig, animations)},
      {NULL, NULL, NULL, 0}
};

static WDMDictionarySpec wdmLogin_config =
      {sizeof(WDMLoginConfig), wdmLogin_config_struct};
      
static Bool WDMCheckPLInteger(WMPropList *pl, void *def, void *target)
{
      int *int_target = (int *)target;
      int int_def = (int)def;
      char *text = NULL;
      char *endptr = NULL;

      WDMDebug("WDMCheckPLInteger(%p, %p, %p)\n", (void*)pl, def, target);
      
      *int_target = int_def;
      if(pl && WMIsPLString(pl))
      {
            text = WMGetFromPLString(pl);
            if(text != NULL)
                  *int_target = strtol(text, &endptr, 0);
      }
      return True;
}

static Bool WDMCheckPLUInteger(WMPropList *pl, void *def, void *target)
{
      unsigned int *int_target = (unsigned int *)target;
      unsigned int int_def = (unsigned int)def;
      char *text = NULL;
      char *endptr = NULL;

      WDMDebug("WDMCheckPLUInteger(%p, %p, %p)\n", (void*)pl, def, target);
      
      *int_target = int_def;
      if(pl && WMIsPLString(pl))
      {
            text = WMGetFromPLString(pl);
            if(text != NULL)
                  *int_target = strtoul(text, &endptr, 0);
      }
      return True;
}

static Bool WDMCheckPLGeometry(WMPropList *pl, void *def, void *target)
{
      WMRect *rect_target = (WMRect *)target;

      WDMDebug("WDMCheckPLGeometry(%p, %p, %p)\n", (void*)pl, def, target);

      if(def)
            memcpy(rect_target, def, sizeof(WMRect));

      if(pl != NULL && WMIsPLArray(pl))
      {
            WDMCheckPLUInteger(WMGetFromPLArray(pl, 0),
                        (void*)rect_target->size.width,
                        &rect_target->size.width);
            WDMCheckPLUInteger(WMGetFromPLArray(pl, 1),
                        (void*)rect_target->size.height,
                        &rect_target->size.height);
            WDMCheckPLInteger(WMGetFromPLArray(pl, 2),
                        (void*)rect_target->pos.x,
                        &rect_target->pos.x);
            WDMCheckPLInteger(WMGetFromPLArray(pl, 3),
                        (void*)rect_target->pos.y,
                        &rect_target->pos.y);
            return True;
      }
      return False;
}

WDMLoginConfig *
LoadConfiguration(char *configFile)
{
      char *filename = configFile ? configFile : DEF_WDMLOGIN_CONFIG;
      WMPropList *db;
      WDMLoginConfig *config = NULL;

      db = WMReadPropListFromFile(filename);
      if(db == NULL)
            WDMError("Cannot open config file. Using builtin defaults\n");
      if(!WDMCheckPLDictionary(db, &wdmLogin_config, &config))
            WDMError("Error parsing config file. Using builtin defaults\n");
      if(db)
            WMReleasePropList(db);
      return config;
}


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