Function processShplabelTag

maptemplate.c:1499–1843

static int processShplabelTag(layerObj *layer, char **line, shapeObj *origshape) 
{
    char *tag, *tagStart, *tagEnd;
    char *tagValue=NULL;
    hashTableObj *tagArgs=NULL;
    int tagOffset, tagLength;
    char *format;
    char *argValue=NULL;
    char *projectionString=NULL;
    shapeObj tShape;
    int precision=0;
    int clip_to_map=MS_TRUE;
    int use_label_settings=MS_FALSE;
    double cellsize=0;
    int labelposvalid = MS_FALSE;
    pointObj labelPos;
    int i,status;
    char number[64]; /* holds a single number in the extent */
    char numberFormat[16];
    shapeObj *shape = NULL;

    if(!*line) {
    msSetError(MS_WEBERR, "Invalid line pointer.", "processShplabelTag()");
    return(MS_FAILURE);
    }
    if( msCheckParentPointer(layer->map,"map")==MS_FAILURE )
      return MS_FAILURE;
  
    tagStart = findTag(*line, "shplabel");

    /* It is OK to have no shplabel tags, just return. */
    if( !tagStart )
      return MS_SUCCESS;

    if(!origshape || origshape->numlines <= 0) { /* I suppose we need to make sure the part has vertices (need shape checker?) */
      msSetError(MS_WEBERR, "Null or empty shape.", "processShplabelTag()");
      return(MS_FAILURE);
    }

    
    while (tagStart) 
    {
        if (shape)
          msFreeShape(shape);
        shape = (shapeObj *) msSmallMalloc(sizeof(shapeObj));
        msInitShape(shape);
        msCopyShape(origshape, shape);

        projectionString = NULL;
        format = "$x,$y";
        tagOffset = tagStart - *line;

        if(getTagArgs("shplabel", tagStart, &tagArgs) != MS_SUCCESS) return(MS_FAILURE);
        if(tagArgs) 
        {
            argValue = msLookupHashTable(tagArgs, "format");
            if(argValue) format = argValue;