public function renderFile()
{
$mMaxWidth = is_numeric(@$_REQUEST['max_width']) ? (int) $_REQUEST['max_width'] : 'full';
$mMaxHeight = is_numeric(@$_REQUEST['max_height']) ? (int) $_REQUEST['max_height'] : 'full';
if (!$this->oDocument->isGDImage()) {
$mMaxWidth = 'full';
$mMaxHeight = 'full';
}
$sCacheString = 'doc_' . $this->oDocument->getId() . '_' . $mMaxWidth . 'x' . $mMaxHeight . (isset($_REQUEST['add_text']) ? '_' . $_REQUEST['add_text'] : "");
$oCache = new Cache($sCacheString, DIRNAME_IMAGES);
$sDisplay = "inline";
if (isset($_REQUEST['download']) && $_REQUEST['download'] == "true") {
$sDisplay = "attachment";
}
header('Content-Disposition: ' . $sDisplay . ';filename="' . $this->oDocument->getFullName() . '"');
//Don’t base the last-modified off the cache but rather off the document’s updated-at.
LinkUtil::sendCacheControlHeaders($this->oDocument, $oCache);
if ($oCache->entryExists() && !$oCache->isOlderThan($this->oDocument)) {
header("Content-Type: " . $this->oDocument->getDocumentType()->getMimetype());
$oCache->passContents(true);
exit;
}
$rDataStream = $this->oDocument->getData();
try {
if (is_int($mMaxWidth) || is_int($mMaxHeight)) {
$oImage = Image::imageFromStream($rDataStream);
if (is_int($mMaxWidth) && is_int($mMaxHeight)) {
$oImage->setSize($mMaxWidth, $mMaxHeight, Image::RESIZE_TO_SMALLER_VALUE);
} else {
if (is_int($mMaxWidth)) {
$oImage->setSize($mMaxWidth, 0, Image::RESIZE_TO_WIDTH);
} else {
$oImage->setSize(0, $mMaxHeight, Image::RESIZE_TO_HEIGHT);
}
}
//Since $bDontBlowUp is true, do a preliminary check whether it’s necessary to even use the image class
if ($oImage->getScalingFactor() < 1.0) {
$oImage->setFileType($this->oDocument->getDocumentType()->getExtension());
$oImage->render(true, null, $oCache);
exit;
} else {
//Free up space
$oImage->destroy();
rewind($rDataStream);
}
}
} catch (Exception $ex) {
}
//Ignore unrecognized image format
header("Content-Type: " . $this->oDocument->getDocumentType()->getMimetype());
header("Content-Length: " . $this->oDocument->getDataSize());
$oCache->setContents(stream_get_contents($rDataStream));
rewind($rDataStream);
fpassthru($rDataStream);
}
public function renderFile()
{
$sCacheString = 'preview_' . $this->oDocumentType->getId() . '_' . $this->iSize;
$oCache = new Cache($sCacheString, DIRNAME_IMAGES);
LinkUtil::sendCacheControlHeaders($this->oDocumentType, $oCache);
if ($oCache->entryExists() && !$oCache->isOlderThan($this->oDocumentType)) {
header("Content-Type: " . self::MIME_TYPE);
$oCache->passContents(true);
exit;
}
$sFileName = "{$this->oDocumentType->getDocumentKind()}.png";
$sFilePath = ResourceFinder::findResource(array(DIRNAME_MODULES, self::getType(), $this->getModuleName(), ResourceIncluder::RESOURCE_TYPE_ICON, $sFileName));
if ($sFilePath === null) {
$sFileName = 'default.png';
}
$sFilePath = ResourceFinder::findResource(array(DIRNAME_MODULES, self::getType(), $this->getModuleName(), ResourceIncluder::RESOURCE_TYPE_ICON, $sFileName));
if ($sFilePath === null) {
throw new Exception("Error in DocumentTypePreviewFileModule->renderFile: type has unknown kind: {$this->oDocumentType->getDocumentKind()}");
}
$sFontFilePath = ResourceFinder::findResource(array(DIRNAME_MODULES, self::getType(), $this->getModuleName(), 'PTS55F.ttf'));
$oImage = Image::imageFromPath($sFilePath);
if (Image::supportsText()) {
$sText = strtoupper($this->oDocumentType->getExtension());
$fFontSize = 72.0;
$aSize = Image::textSize($sFontFilePath, $sText, $fFontSize);
$iDesiredWidth = 300;
$iDesiredHeight = 145;
$fWidthRatio = $iDesiredWidth / $aSize[0];
$fHeightRatio = $iDesiredHeight / $aSize[1];
$fRatio = min($fWidthRatio, $fHeightRatio);
$fFontSize *= $fRatio;
$iDesiredPositionX = 107 - 7 * $fRatio;
$iDesiredPositionY = 338;
$iStartPositionX = $iDesiredPositionX + ($iDesiredWidth - $aSize[0] * $fRatio) / 2;
$iStartPositionY = $iDesiredPositionY + $aSize[1] * $fRatio + ($iDesiredHeight - $aSize[1] * $fRatio) / 2;
$oImage->addText($sFontFilePath, $sText, 1, $fFontSize, 150, 150, 150, $iStartPositionX, $iStartPositionY);
}
if ($this->iSize < 512) {
$oImage->setSize($this->iSize, $this->iSize, Image::STRETCH);
}
$oImage->setFileType('png');
$oImage->render(true, null, $oCache);
exit;
}
/**
* Sends the cache control headers Last-Modified and ETag
* Uses the timestamp of the cache file as base for calculation.
* Additionally, this method exits if the client sent a matching If-None-Match or If-Modified-Since header
* You can call this method twice if you created a new cache file and don’t have any other timestamp. It will only output the headers once.
* @param $iTimestamp deprecated: to use this method without a cache file, call LinkUtil::sendCacheControlHeaders directly
*/
public function sendCacheControlHeaders($iTimestamp = null)
{
if ($iTimestamp !== null) {
LinkUtil::sendCacheControlHeaders($iTimestamp);
} else {
LinkUtil::sendCacheControlHeadersForCache($this);
}
}
