int KmlRenderer::mergeRasterBuffer(imageObj *image, rasterBufferObj *rb)
{
assert(rb && rb->type == MS_BUFFER_BYTE_RGBA);
char *tmpFileName = NULL;
char *tmpUrl = NULL;
FILE *tmpFile = NULL;
tmpFileName = msTmpFile(NULL, MapPath, image->imagepath, "png");
tmpFile = fopen(tmpFileName,"wb");
if (tmpFile) {
if (!aggFormat->vtable)
msInitializeRendererVTable(aggFormat);
msSaveRasterBuffer(map,rb,tmpFile,aggFormat);
tmpUrl = msStrdup( image->imageurl);
tmpUrl = msStringConcatenate(tmpUrl, (char *)(msGetBasename(tmpFileName)));
tmpUrl = msStringConcatenate(tmpUrl, ".png");
createGroundOverlayNode(LayerNode, tmpUrl, currentLayer);
msFree(tmpFileName);
msFree(tmpUrl);
fclose(tmpFile);
return MS_SUCCESS;
} else {
msSetError(MS_IOERR,"Failed to create file for kml overlay","KmlRenderer::mergeRasterBuffer()");
return MS_FAILURE;
}
}
char* KmlRenderer::lookupSymbolUrl(imageObj *img, symbolObj *symbol, symbolStyleObj *symstyle)
{
char symbolHexColor[32];
/*
<Style id="randomColorIcon">
<IconStyle>
<color>ff00ff00</color>
<colorMode>random</colorMode>
<scale>1.1</scale>
<Icon>
<href>http://maps.google.com/mapfiles/kml/pal3/icon21.png</href>
</Icon>
</IconStyle>
</Style>
*/
sprintf(symbolHexColor,"%02x%02x%02x%02x", symstyle->style->color.alpha, symstyle->style->color.blue,
symstyle->style->color.green, symstyle->style->color.red);
snprintf(SymbolName, sizeof(SymbolName), "symbol_%s_%.1f_%s", symbol->name, symstyle->scale, symbolHexColor);
char *symbolUrl = msLookupHashTable(StyleHashTable, SymbolName);
if (!symbolUrl)
{
char iconFileName[MS_MAXPATHLEN];
char iconUrl[MS_MAXPATHLEN];
if (img->imagepath)
{
char *tmpFileName = msTmpFile(NULL, MapPath, img->imagepath, "png");
snprintf(iconFileName, sizeof(iconFileName), "%s", tmpFileName);
msFree(tmpFileName);
}
else
{
sprintf(iconFileName, "symbol_%s_%.1f.%s", symbol->name, symstyle->scale, "png");
}
if (createIconImage(iconFileName, symbol, symstyle) != MS_SUCCESS)
{
char errMsg[512];
sprintf(errMsg, "Error creating icon file '%s'", iconFileName);
msSetError(MS_IOERR, errMsg, "KmlRenderer::lookupSymbolStyle()" );
return NULL;
}
if (img->imageurl)
sprintf(iconUrl, "%s%s.%s", img->imageurl, msGetBasename(iconFileName), "png");
else
snprintf(iconUrl, sizeof(iconUrl), "%s", iconFileName);
hashObj *hash = msInsertHashTable(StyleHashTable, SymbolName, iconUrl);
symbolUrl = hash->data;
}
return symbolUrl;
}
