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/**********************************************************************
*
* PostGIS - Spatial Types for PostgreSQL
* http://postgis.net
* Copyright 2008 Kevin Neufeld
*
* This is free software; you can redistribute and/or modify it under
* the terms of the GNU General Public Licence. See the COPYING file.
*
* TODO: fix segfault bug caused by a referenced style that doesn't exist in
* the .conf file
**********************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "styles.h"
void
getStyles( LAYERSTYLE **headRef )
{
char line [128];
FILE* pFile;
char *getResults;
*headRef = NULL;
if ((pFile = fopen("styles.conf", "r")) == NULL)
{
perror ( "styles.conf: No such file or directory" );
return;
}
getResults = fgets ( line, sizeof line, pFile );
while ( getResults != NULL )
{
// process defined styles
while ( (getResults != NULL) && strncmp(line, "[Style]", 7) == 0)
{
char *styleName = "DefaultStyle";
int pointSize = 5;
char *pointColor = "Grey";
int lineWidth = 5;
char *lineColor = "Grey";
char *polygonFillColor = "Grey";
char *polygonStrokeColor = "Grey";
int polygonStrokeWidth = 0;
getResults = fgets ( line, sizeof line, pFile );
while ( (getResults != NULL) && (strncmp(line, "[Style]", 7) != 0) )
{
char *ptr;
// loop over all lines until [Style] is reached again
if ( (*line != '#') && (ptr = strchr(line, '=')) )
{
ptr = trim((++ptr));
if (strncmp(line, "styleName", 9) == 0)
styleName = ptr;
else if (strncmp(line, "pointSize", 9) == 0)
{
pointSize = atoi(ptr);
free(ptr);
}
else if (strncmp(line, "pointColor", 10) == 0)
pointColor = ptr;
else if (strncmp(line, "lineWidth", 9) == 0)
{
lineWidth = atoi(ptr);
free(ptr);
}
else if (strncmp(line, "lineColor", 9) == 0)
lineColor = ptr;
else if (strncmp(line, "polygonFillColor", 16) == 0)
polygonFillColor = ptr;
else if (strncmp(line, "polygonStrokeColor", 18) == 0)
polygonStrokeColor = ptr;
else if (strncmp(line, "polygonStrokeWidth", 18) == 0)
{
polygonStrokeWidth = atoi(ptr);
free(ptr);
}
}
getResults = fgets ( line, sizeof line, pFile );
}
addStyle(headRef, styleName, pointSize, pointColor, lineWidth, lineColor, polygonFillColor, polygonStrokeColor, polygonStrokeWidth);
}
getResults = fgets ( line, sizeof line, pFile );
}
fclose( pFile );
}
void
freeStyles( LAYERSTYLE **headRef )
{
LAYERSTYLE *curr = *headRef;
LAYERSTYLE *next;
while (curr != NULL)
{
next = curr->next;
free(curr->styleName);
free(curr->pointColor);
free(curr->lineColor);
free(curr->polygonFillColor);
free(curr->polygonStrokeColor);
free(curr);
curr = next;
}
*headRef = NULL;
}
void
addStyle(
LAYERSTYLE **headRef,
char* styleName,
int pointSize, char* pointColor,
int lineWidth, char* lineColor,
char* polygonFillColor, char* polygonStrokeColor, int polygonStrokeWidth)
{
LAYERSTYLE *style = malloc( sizeof(LAYERSTYLE) );
style->styleName = styleName;
style->pointSize = pointSize;
style->pointColor = pointColor;
style->lineWidth = lineWidth;
style->lineColor = lineColor;
style->polygonFillColor = polygonFillColor;
style->polygonStrokeColor = polygonStrokeColor;
style->polygonStrokeWidth = polygonStrokeWidth;
style->next = *headRef;
*headRef = style;
}
int
length( LAYERSTYLE *head )
{
int count = 0;
LAYERSTYLE *curr = head;
while (curr != NULL)
{
count++;
curr = curr->next;
}
return (count);
}
LAYERSTYLE*
getStyle( LAYERSTYLE *headRef, char* styleName )
{
LAYERSTYLE *curr = headRef;
while (curr != NULL && (strcmp(curr->styleName, styleName) != 0))
curr = curr->next;
return (curr);
}
char*
trim(char* str)
{
int len;
char* result;
char* start = str;
char* end = strchr(start, '\0');
while (start<end && isspace(*start)) start++;
while (start<end && isspace(*(end-1))) end--;
len = end-start;
result = malloc( len+1 );
strncpy(result, start, len);
result[len] = '\0';
return result;
}
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