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ParametrizedPDF.php
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ParametrizedPDF.php
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<? require_once("lib/tcpdf/tcpdf.php");
class ParametrizedPDF extends TCPDF {
protected $footerItems = array();
protected $headerItems = array();
private $_theaderLeft;
public function __construct($pageOrientation, $unit,$paperSize) {
parent::__construct($pageOrientation, $unit,$paperSize);
$this->setHtmlVSpace(array(
"dt"=>array(0=>array("n"=>0)),
"ul"=>array(0=>array("n"=>0)),
"dd"=>array(0=>array("n"=>0))));
}
private function applyNewFont($newFont) {
$newFamily = getOptionalParam("family", $newFont, $this->getFontFamily());
$newStyle = getOptionalParam("style", $newFont, $this->getFontStyle());
$newSize = getOptionalParam("size", $newFont, $this->getFontSizePt());
$this->SetFont($newFamily, $newStyle, $newSize);
}
private function addTextItem($textItem, $idx) {
$text = getRequiredParam("text", $textItem, $idx);
$align = getOptionalParam("align", $textItem, "L");
$newLine = getOptionalParam("newLine", $textItem, true);
$newLine = $newLine ? 1 : 0;
$height = $this->getLineHeight($this);
// We decode the string as in PDFs content UTF8 is not supported
$text= str_replace("%PAGE_NUMBER%",$this->getAliasNumPage(),$text);
$text=str_replace("%PAGE_COUNT%",$this->getAliasNbPages(), $text);
$this->Cell(0, $height, $text, 0, $newLine, $align);
}
private function addParItem($parItem, $idx) {
$text = getRequiredParam("text", $parItem, $idx);
$align = getOptionalParam("align", $parItem, "L");
$width = getOptionalParam("width", $parItem, 0);
$lineHeight = $this->getLineHeight($this);
$text= str_replace("%PAGE_NUMBER%",$this->getAliasNumPage(),$text);
$text=str_replace("%PAGE_COUNT%",$this->getAliasNbPages(), $text);
$this->MultiCell($width, $lineHeight, $text, 0, $align);
}
private function addImageItem($imageItem, $idx) {
$pngImage = null;
if (array_key_exists("url", $imageItem)) {
// Image url can be a file in the server's filesystem, an url, or a data uri.
$imageURL = $imageItem["url"];
if (strpos($imageURL, "data:") === 0) {
$pngImage = $this->imageFromDataUri($imageURL, $idx);
} else {
// We try retrieving a remote image.
$pngImage = $this->imageFromRemoteUrl($imageURL, $idx);
}
} else if (array_key_exists("fileInputName", $imageItem)) {
// The file came as an uploaded file in an multipart post request.
$fileInputName = $imageItem["fileInputName"];
$pngImage = $this->imageFromUpload($fileInputName, $idx);
} else {
showError("Either 'url' or 'fileInputName' must be specified for imageItem at position $idx");
}
// We retrieve the image's size.
$imageWidthPx = imagesx($pngImage);
$imageHeightPx = imagesy($pngImage);
$dpi = getOptionalParam("dpi",$imageItem, 91);
// Conversion between mm and px. 1 inch = 25.4 mm, and standard PDF resolution is 72 dpi (px/inch).
$pxToMM = 25.4 / $dpi;
error_log($imageWidthPx.", ".$imageHeightPx);
$iWidth = $imageWidthPx * $pxToMM;
$iHeight = $imageHeightPx * $pxToMM;
// Optional params "width" and "height"
$width = $iWidth;
$height = $iHeight;
if (array_key_exists("width", $imageItem) && array_key_exists("height", $imageItem)) {
$width = $imageItem["width"];
$height = $imageItem["height"];
} else if (array_key_exists("width", $imageItem)) {
// If only one param is specified, we keep the aspect ratio.
$width = $imageItem["width"];
$height = $width * $iHeight / $iWidth;
} else if (array_key_exists("height", $imageItem)) {
$height = $imageItem["height"];
$width = $height * $iWidth / $iHeight;
}
// We save the image in a tmp file to be able to load it.
$imagePath = tempnam(sys_get_temp_dir(), "imageTmp");
imagealphablending($pngImage, false);
imagesavealpha($pngImage, true);
imagepng($pngImage, $imagePath, 1);
// Page break disabled before adding the image, or it might be downscaled to fit the page even if
// the Image method receives a fitonpage false by default.
$bottomMargin = $this->getBreakMargin();
$this->SetAutoPageBreak(false);
// We specify PNG as the format as we always convert the image or PDF to PNG.
$scaleMode = 2;
$dpi=300;
if($width!=$iWidth || $height!= $iHeight) {
$scaleMode = false;
$dpi=0;
}
$x = $this->GetX();
$y = $this->GetY();
$this->Image($imagePath, $this->GetX(), $this->GetY(), $width, $height, "PNG","","",$scaleMode,$dpi);
$border = getOptionalParam("border", $imageItem, false);
if($border===true) {
$border = array('LTRB' => array('width' => 0.1, 'cap' => 'square', 'join' => 'mitter', 'dash' => 0, 'color' => array(0, 0, 0)));
} else if($border) {
$borderColor = getOptionalParam("color", $border, "black");
$borderWidth = getOptionalParam("width", $border, 1);
$border = array('LTRB' => array('width' => $borderWidth, 'cap' => 'butt', 'join' => 'miter', 'dash' => 0, 'color' => $borderColor));
}
if($border) {
$this->Rect($x, $y, $width, $height,"", $border, null);
}
$this->SetAutoPageBreak(true, $bottomMargin);
$this->SetY($this->GetY() + $height);
unlink($imagePath);
imagedestroy($pngImage);
}
private function imageFromDataUri($imageURL, $idx) {
// We get the image's content.
$imgData = base64_decode(substr($imageURL, strpos($imageURL, ",") + 1));
$pngImage = $this->imageFromContents($imgData, $idx);
if (!$pngImage) {
showError("The data uri provided as url parameter for image item at position $idx doesn't contain a valid image or PDF.");
}
return $pngImage;
}
private function imageFromRemoteUrl($url, $idx) {
$imageContent = $this->remoteRequest($url, $idx);
// Handle response
$srcImage = $this->imageFromContents($imageContent);
if (!$srcImage) {
showError("The url specified for image item at position $idx didn't contain a valid image.");
}
return $srcImage;
}
private function remoteRequest($url, $idx) {
// Defining the default CURL options
// $defaults = array(
// CURLOPT_URL => $url,
// CURLOPT_CONNECTTIMEOUT=>0,
// CURLOPT_FRESH_CONNECT=>TRUE,
// CURLOPT_RETURNTRANSFER => TRUE);
// // Open the Curl session
// $session = curl_init();
// // Setting the options
// curl_setopt_array($session, $defaults);
// // Make the call
// $remoteContent = curl_exec($session);
$remoteContent = file_get_contents($url);
if (!$remoteContent) {
showError("Curl couldn't retrieve the content of url ".$url.
" specified in the item at position $idx.: ");
}
// // Close the connetion
// curl_close($session);
return $remoteContent;
}
private function imageFromUpload($formFieldName, $idx) {
if (!array_key_exists($formFieldName, $_FILES)) {
showError("No uploaded file found for file input name '$formFieldName' specified for item at position $idx");
}
$error = $_FILES[$formFieldName]["error"];
switch ($error) {
case UPLOAD_ERR_OK:
$error = false;
break;
case UPLOAD_ERR_INI_SIZE:
$error = 'The uploaded file exceeds the upload_max_filesize directive in php.ini.';
break;
case UPLOAD_ERR_FORM_SIZE:
$error = 'The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form.';
break;
case UPLOAD_ERR_PARTIAL:
$error = 'The uploaded file was only partially uploaded.';
break;
case UPLOAD_ERR_NO_FILE:
$error = 'No file was uploaded.';
break;
case UPLOAD_ERR_NO_TMP_DIR:
$error = 'Missing a temporary folder. Introduced in PHP 4.3.10 and PHP 5.0.3.';
break;
case UPLOAD_ERR_CANT_WRITE:
$error = 'Failed to write file to disk. Introduced in PHP 5.1.0.';
break;
case UPLOAD_ERR_EXTENSION:
$error = 'File upload stopped by extension. Introduced in PHP 5.2.0.';
break;
default:
$error = 'Unknown error';
break;
}
if($error) {
showError("The image upload for field '$formFieldName' for image item at $idx failed: $error");
}
$fileName = $_FILES[$formFieldName]["name"];
// We try opening the uploaded file we don't trust mime type or extensions.
//$filePath = $_FILES[$formFieldName]["tmp_name"];
$filePath = sys_get_temp_dir()."/".$fileName;
$fileContents = file_get_contents($filePath);
if(!$fileContents) {
showError("The image uploaded in field '$formFieldName' for image item at $idx is empty, path: $filePath, filename: $fileName");
}
$resultImg = $this->imageFromContents($fileContents);
if (!$resultImg) {
showError("The image uploaded in field '$formFieldName' for image item at $idx has an invalid format.");
}
return $resultImg;
}
private function imageFromContents($fileContents) {
$img = @imagecreatefromstring($fileContents);
if (!$img) {
// We try converting this from pdf.
$tmpPDFInput = tempnam(sys_get_temp_dir(), "pdfInput");
file_put_contents($tmpPDFInput, $fileContents);
$img = convertPDFFileToImage($tmpPDFInput);
unlink($tmpPDFInput);
}
return $img;
}
private function addTableItem($tableItem, $idx) {
$rows = getRequiredParam("rows", $tableItem, $idx);
$left = $this->GetX();
$top = $this->GetY();
$this->setDrawColor(0, 0, 0);
$borderWidth = $this->GetLineWidth();
$cellPadding = getOptionalParam("cellpadding", $tableItem, 2);
$htmlTable = "<table border=\"$borderWidth\" cellpadding=\"$cellPadding\">";
$vAlignHeightHack = $this->GetFontSize() * 2;
for ($rowIdx = 0; $rowIdx < count($rows); $rowIdx++) {
$htmlTable.= "<tr>";
$row = $rows[$rowIdx];
for ($colIdx = 0; $colIdx < count($row); $colIdx++) {
$column = $row[$colIdx];
$colSpan = 1;
$rowSpan = 1;
$hAlign = "left";
$vAlign = "top";
$columnText = $column;
$width = "auto";
if (is_array($column)) {
if (!array_key_exists("text", $column)) {
showError("'text' must be defined for the cell $cIdx of row $rIdx of tableItem at position $idx");
}
$columnText = $column["text"];
$colSpan = getOptionalParam("colspan", $column, 1);
$rowSpan = getOptionalParam("rowspan", $column, 1);
$hAlign = getOptionalParam("align", $column, "left");
$vAlign = getOptionalParam("valign", $column, "top");
$width = getOptionalParam("width", $column, "auto");
}
if ($rowSpan > 1) {
switch ($vAlign) {
case 'bottom':
$columnText = "<span style=\"font-size: $vAlignHeightHack;\">".str_repeat(' <br/>', $rowSpan).
'</span>'.$columnText;
break;
case 'middle':
$columnText = "<span style=\"font-size: $vAlignHeightHack;\">".str_repeat(' <br/>', $rowSpan - 1).
'</span>'.$columnText;
break;
}
}
if ($width === "auto") {
$htmlTable.= "<td align=\"$hAlign\" colspan=\"$colSpan\" rowspan=\"$rowSpan\">$columnText</td>";
} else {
$width.= "mm";
$htmlTable.= "<td align=\"$hAlign\" colspan=\"$colSpan\" rowspan=\"$rowSpan\" width=\"$width\">$columnText</td>";
}
}
$htmlTable.= "</tr>";
}
$htmlTable.= "</table>";
$htmlTable= str_replace("%PAGE_NUMBER%",$this->getAliasNumPage(),$htmlTable);
$htmlTable=str_replace("%PAGE_COUNT%",$this->getAliasNbPages(), $htmlTable);
$this->writeHTML($htmlTable, false, false, false, false, '');
}
private function addHtmlItem($htmlItem, $idx) {
$htmlContent = getOptionalParam("content", $htmlItem, "");
if (!$htmlContent) {
$url = getOptionalParam("url", $htmlItem, false);
if (!$url) {
showError("Either 'url' or 'content' must be specified for the html item at position $idx");
}
$htmlContent = $this->remoteRequest($url, $idx);
}
$this->setListIndentWidth(getOptionalParam("listIndent", $htmlItem, $this->GetStringWidth("x")));
$htmlContent= str_replace("%PAGE_NUMBER%",$this->getAliasNumPage(),$htmlContent);
$htmlContent=str_replace("%PAGE_COUNT%",$this->getAliasNbPages(), $htmlContent);
$this->writeHTML($htmlContent, false, false, false, false, '');
}
private function addPageBreakItem($pageBreakItem, $idx) {
$this->AddPage();
$columns = getOptionalParam("columns", $pageBreakItem,1);
$columnTopMargin= getOptionalParam("topMargin", $pageBreakItem,1);
if($columns>1){
$this->setEqualColumns($columns, ($this->getPageWidth()/$columns) -5, $columnTopMargin);
} else {
$this->resetColumns();
}
}
private function getLineHeight() {
// A possibly very bad appoximation.
return $this->GetStringWidth("x")*1.5;
}
public function addItems($items) {
for($i=0; $i < count($items); $i++) {
$this->addItem($items[$i], $i);
}
}
public function addItem($item, $idx) {
// Here we do the common stuff.
// We set the font styles that will be used in this items and following ones
// (if not changed again).
if (array_key_exists("newFont", $item)) {
$this->applyNewFont($item["newFont"]);
}
$lineWidth = getOptionalParam("newLineWidth", $item, $this->GetLineWidth());
$this->SetLineWidth($lineWidth);
$type = getOptionalParam("type", $item, "text");
$x = $this->GetX();
if (array_key_exists("x", $item)) {
// Absolute positioning.
$x = intval($item["x"]);
} else if (array_key_exists("dx", $item)) {
// Relative
$x += intval($item["dx"]);
}
$y = $this->GetY();
if (array_key_exists("y", $item)) {
// Absolute positioning.
$y = intval($item["y"]);
} else if (array_key_exists("dy", $item)) {
// Relative
$y += intval($item["dy"]);
}
$this->SetXY($x, $y);
switch (strtolower($type)) {
case "text":
$this->addTextItem($item, $idx);
break;
case "paragraph":
case "par":
$this->addParItem($item, $idx);
break;
case "image":
$this->addImageItem($item, $idx);
break;
case "table":
$this->addTableItem($item, $idx);
break;
case "html":
$this->addHtmlItem($item, $idx);
break;
case "pagebreak":
$this->addPageBreakItem($item, $idx);
break;
default:
showError("Unsupported item type for item ".$idx.": ".$type);
}
// By default, we advance the position so we are placed after the element.
$keepPosition = getOptionalParam("keepPosition", $item, false);
if ($keepPosition) {
// We keep the initial position, so we reset the calculated x and y.
$this->SetXY($x, $y);
}
}
public function setCustomHeader($header) {
if(!$header) {
return;
}
$margin = getOptionalParam("margin", $header, 10);
$this->setHeaderMargin($margin);
$items = getOptionalParam("items", $header, false);
if(!$items) {
return;
}
$this->headerItems = $items;
}
public function setCustomFooter($footer) {
if(!$footer) {
return;
}
$margin = getOptionalParam("margin", $footer, 10);
$this->setFooterMargin($margin);
$items = getOptionalParam("items", $footer, false);
if(!$items) {
return;
}
$this->footerItems = $items;
}
public function Header() {
if($this->headerItems && count($this->headerItems)>0) {
$this->addItems($this->headerItems);
}
}
public function Footer() {
if($this->footerItems && count($this->footerItems)>0) {
$this->addItems($this->footerItems);
}
}
protected function setTableHeader() {
if ($this->num_columns > 1) {
// multi column mode
return;
}
if (isset($this->theadMargins['top'])) {
// restore the original top-margin
$this->tMargin = $this->theadMargins['top'];
$this->pagedim[$this->page]['tm'] = $this->tMargin;
$this->y = $this->tMargin;
}
if (!TCPDF_STATIC::empty_string($this->thead) AND (!$this->inthead)) {
// set margins
$prev_lMargin = $this->lMargin;
$prev_rMargin = $this->rMargin;
error_log("1. ".$this->_theaderLeft);
if($this->theadMargins["lmargin"]!= $this->lMargin) {
$this->_theaderLeft = $this->lMargin;
}
$prev_cell_padding = $this->cell_padding;
$this->lMargin = $this->theadMargins['lmargin'] + ($this->pagedim[$this->page]['olm'] - $this->pagedim[$this->theadMargins['page']]['olm']);
$this->rMargin = $this->theadMargins['rmargin'] + ($this->pagedim[$this->page]['orm'] - $this->pagedim[$this->theadMargins['page']]['orm']);
$this->cell_padding = $this->theadMargins['cell_padding'];
if ($this->rtl) {
$this->x = $this->w - $this->rMargin;
} else {
$this->x = $this->lMargin;
}
// account for special "cell" mode
if ($this->theadMargins['cell']) {
if ($this->rtl) {
$this->x -= $this->cell_padding['R'];
} else {
$this->x += $this->cell_padding['L'];
}
}
error_log("2. ".$this->_theaderLeft);
$this->x = $this->lMargin;
// print table header
$this->writeHTML($this->thead, false, false, false, false, '');
// set new top margin to skip the table headers
if (!isset($this->theadMargins['top'])) {
$this->theadMargins['top'] = $this->tMargin;
}
// store end of header position
if (!isset($this->columns[0]['th'])) {
$this->columns[0]['th'] = array();
}
$this->columns[0]['th']['\''.$this->page.'\''] = $this->y;
$this->tMargin = $this->y;
$this->pagedim[$this->page]['tm'] = $this->tMargin;
$this->lasth = 0;
$this->lMargin = $prev_lMargin;
$this->rMargin = $prev_rMargin;
$this->cell_padding = $prev_cell_padding;
}
}
}