Function generateLayerTemplate

maptemplate.c:2673–2803

! * Replace all tags from layer template * with correct value. * * this function return a buffer containing * the template with correct values. * * buffer must be freed by caller. */

 * buffer must be freed by caller.
*/
int generateLayerTemplate(char *pszLayerTemplate, mapObj *map, int nIdxLayer, hashTableObj *oLayerArgs, char **pszTemp, char* pszPrefix)
{
   hashTableObj *myHashTable;
   char szStatus[10];
   char szType[10];
   
   int nOptFlag=0;
   char *pszOptFlag = NULL;
   char *pszClassImg;

   char szTmpstr[128]; /* easily big enough for the couple of instances we need */

   *pszTemp = NULL;
   
   if(!pszLayerTemplate || 
       !map || 
       nIdxLayer > map->numlayers ||
       nIdxLayer < 0 ) {
     msSetError(MS_WEBERR, "Invalid pointer.", "generateLayerTemplate()");
     return MS_FAILURE;
   }

   if(oLayerArgs)
       pszOptFlag = msLookupHashTable(oLayerArgs, "opt_flag");

   if(pszOptFlag)
     nOptFlag = atoi(pszOptFlag);

   /* don't display deleted layers */
   if(GET_LAYER(map, nIdxLayer)->status == MS_DELETE)
     return MS_SUCCESS;

   /* dont display layer is off. */
   /* check this if Opt flag is not set */
   if((nOptFlag & 2) == 0 && GET_LAYER(map, nIdxLayer)->status == MS_OFF)
     return MS_SUCCESS;

   /* dont display layer is query. */
   /* check this if Opt flag is not set */
   if((nOptFlag & 4) == 0  && GET_LAYER(map, nIdxLayer)->type == MS_LAYER_QUERY)
     return MS_SUCCESS;

   /* dont display layer is annotation. */
   /* check this if Opt flag is not set       */
   if((nOptFlag & 8) == 0 && GET_LAYER(map, nIdxLayer)->type == MS_LAYER_ANNOTATION)
     return MS_SUCCESS;      

   /* dont display layer if out of scale. */
   /* check this if Opt flag is not set             */
   if((nOptFlag & 1) == 0) {
      if(map->scaledenom > 0) {
         if((GET_LAYER(map, nIdxLayer)->maxscaledenom > 0) && (map->scaledenom > GET_LAYER(map, nIdxLayer)->maxscaledenom))
           return MS_SUCCESS;
         if((GET_LAYER(map, nIdxLayer)->minscaledenom > 0) && (map->scaledenom <= GET_LAYER(map, nIdxLayer)->minscaledenom))
           return MS_SUCCESS;
      }
   }