}
switch ($_REQUEST['renderer']) {
case 'PNG':
$renderer = new GD_GRenderer($_REQUEST['width'], $_REQUEST['height'], 'png');
$ext = 'png';
break;
case 'JPEG':
$renderer = new GD_GRenderer($_REQUEST['width'], $_REQUEST['height'], 'jpg');
$ext = 'jpg';
break;
case 'PDF':
$renderer = new PDFLib_GRenderer($_REQUEST['format'], $_REQUEST['orientation']);
$ext = 'pdf';
break;
case 'PS':
$renderer = new PS_GRenderer($_REQUEST['format'], $_REQUEST['orientation']);
$ext = 'ps';
break;
default:
$smarty->assign('msg', tra('You must select a renderer.'));
$smarty->display('error.tpl');
die;
}
if (file_exists($cache_file) && time() - filemtime($cache_file) < 3600) {
$renderer->httpHeaders("graph.{$ext}");
readfile($cache_file);
exit;
}
$handler = new TikiSheetDatabaseHandler($sheetId);
$grid = new TikiSheet($_REQUEST['sheetId']);
$grid->import($handler);