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GraphicalFunctions.php
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GraphicalFunctions.php
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<?php
namespace TYPO3\CMS\Core\Imaging;
/*
* This file is part of the TYPO3 CMS project.
*
* It is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, either version 2
* of the License, or any later version.
*
* For the full copyright and license information, please read the
* LICENSE.txt file that was distributed with this source code.
*
* The TYPO3 project - inspiring people to share!
*/
use TYPO3\CMS\Core\Cache\CacheManager;
use TYPO3\CMS\Core\Charset\CharsetConverter;
use TYPO3\CMS\Core\Utility\ArrayUtility;
use TYPO3\CMS\Core\Utility\CommandUtility;
use TYPO3\CMS\Core\Utility\ExtensionManagementUtility;
use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Core\Utility\MathUtility;
/**
* Standard graphical functions
*
* Class contains a bunch of cool functions for manipulating graphics with GDlib/Freetype and ImageMagick.
* VERY OFTEN used with gifbuilder that extends this class and provides a TypoScript API to using these functions
*/
class GraphicalFunctions
{
/**
* If set, the frame pointer is appended to the filenames.
*
* @var bool
*/
public $addFrameSelection = true;
/**
* This should be changed to 'png' if you want this class to read/make PNG-files instead!
*
* @var string
*/
public $gifExtension = 'gif';
/**
* File formats supported by gdlib. This variable get's filled in "init" method
*
* @var array
*/
protected $gdlibExtensions = [];
/**
* defines the RGB colorspace to use
*
* @var string
*/
protected $colorspace = 'RGB';
/**
* colorspace names allowed
*
* @var array
*/
protected $allowedColorSpaceNames = [
'CMY',
'CMYK',
'Gray',
'HCL',
'HSB',
'HSL',
'HWB',
'Lab',
'LCH',
'LMS',
'Log',
'Luv',
'OHTA',
'Rec601Luma',
'Rec601YCbCr',
'Rec709Luma',
'Rec709YCbCr',
'RGB',
'sRGB',
'Transparent',
'XYZ',
'YCbCr',
'YCC',
'YIQ',
'YCbCr',
'YUV'
];
/**
* 16777216 Colors is the maximum value for PNG, JPEG truecolor images (24-bit, 8-bit / Channel)
*
* @var int
*/
public $truecolorColors = 16777215;
/**
* Allowed file extensions perceived as images by TYPO3.
* List should be set to 'gif,png,jpeg,jpg' if IM is not available.
*
* @var array
*/
protected $imageFileExt = ['gif', 'jpg', 'jpeg', 'png', 'tif', 'bmp', 'tga', 'pcx', 'ai', 'pdf'];
/**
* Web image extensions (can be shown by a webbrowser)
*
* @var array
*/
protected $webImageExt = ['gif', 'jpg', 'jpeg', 'png'];
/**
* Enable ImageMagick effects, disabled by default as IM5+ effects slow down the image generation
*
* @var bool
*/
protected $processorEffectsEnabled = false;
/**
* @var array
*/
public $cmds = [
'jpg' => '',
'jpeg' => '',
'gif' => '',
'png' => ''
];
/**
* @var bool
*/
protected $NO_IMAGE_MAGICK = false;
/**
* @var bool
*/
protected $mayScaleUp = true;
/**
* Filename prefix for images scaled in imageMagickConvert()
*
* @var string
*/
public $filenamePrefix = '';
/**
* Forcing the output filename of imageMagickConvert() to this value. However after calling imageMagickConvert() it will be set blank again.
*
* @var string
*/
public $imageMagickConvert_forceFileNameBody = '';
/**
* This flag should always be FALSE. If set TRUE, imageMagickConvert will always write a new file to the tempdir! Used for debugging.
*
* @var bool
*/
public $dontCheckForExistingTempFile = false;
/**
* Prevents imageMagickConvert() from compressing the gif-files with self::gifCompress()
*
* @var bool
*/
public $dontCompress = false;
/**
* For debugging only.
* Filenames will not be based on mtime and only filename (not path) will be used.
* This key is also included in the hash of the filename...
*
* @var string
*/
public $alternativeOutputKey = '';
/**
* All ImageMagick commands executed is stored in this array for tracking. Used by the Install Tools Image section
*
* @var array
*/
public $IM_commands = [];
/**
* @var array
*/
public $workArea = [];
/**
* Preserve the alpha transparency layer of read PNG images
*
* @var bool
*/
protected $saveAlphaLayer = false;
/**
* ImageMagick scaling command; "-geometry" or "-sample". Used in makeText() and imageMagickConvert()
*
* @var string
*/
public $scalecmd = '-geometry';
/**
* Used by v5_blur() to simulate 10 continuous steps of blurring
*
* @var string
*/
protected $im5fx_blurSteps = '1x2,2x2,3x2,4x3,5x3,5x4,6x4,7x5,8x5,9x5';
/**
* Used by v5_sharpen() to simulate 10 continuous steps of sharpening.
*
* @var string
*/
protected $im5fx_sharpenSteps = '1x2,2x2,3x2,2x3,3x3,4x3,3x4,4x4,4x5,5x5';
/**
* This is the limit for the number of pixels in an image before it will be rendered as JPG instead of GIF/PNG
*
* @var int
*/
protected $pixelLimitGif = 10000;
/**
* Array mapping HTML color names to RGB values.
*
* @var array
*/
protected $colMap = [
'aqua' => [0, 255, 255],
'black' => [0, 0, 0],
'blue' => [0, 0, 255],
'fuchsia' => [255, 0, 255],
'gray' => [128, 128, 128],
'green' => [0, 128, 0],
'lime' => [0, 255, 0],
'maroon' => [128, 0, 0],
'navy' => [0, 0, 128],
'olive' => [128, 128, 0],
'purple' => [128, 0, 128],
'red' => [255, 0, 0],
'silver' => [192, 192, 192],
'teal' => [0, 128, 128],
'yellow' => [255, 255, 0],
'white' => [255, 255, 255]
];
/**
* Charset conversion object:
*
* @var CharsetConverter
*/
protected $csConvObj;
/**
* @var int
*/
protected $jpegQuality = 85;
/**
* @var string
*/
public $map = '';
/**
* This holds the operational setup.
* Basically this is a TypoScript array with properties.
*
* @var array
*/
public $setup = [];
/**
* @var int
*/
public $w = 0;
/**
* @var int
*/
public $h = 0;
/**
* @var array
*/
protected $OFFSET;
/**
* @var resource
*/
protected $im;
/**
* Init function. Must always call this when using the class.
* This function will read the configuration information from $GLOBALS['TYPO3_CONF_VARS']['GFX'] can set some values in internal variables.
*/
public function init()
{
$gfxConf = $GLOBALS['TYPO3_CONF_VARS']['GFX'];
if (function_exists('imagecreatefromjpeg') && function_exists('imagejpeg')) {
$this->gdlibExtensions[] = 'jpg';
$this->gdlibExtensions[] = 'jpeg';
}
if (function_exists('imagecreatefrompng') && function_exists('imagepng')) {
$this->gdlibExtensions[] = 'png';
}
if (function_exists('imagecreatefromgif') && function_exists('imagegif')) {
$this->gdlibExtensions[] = 'gif';
}
if ($gfxConf['processor_colorspace'] && in_array($gfxConf['processor_colorspace'], $this->allowedColorSpaceNames, true)) {
$this->colorspace = $gfxConf['processor_colorspace'];
}
if (!$gfxConf['processor_enabled']) {
$this->NO_IMAGE_MAGICK = true;
}
// Setting default JPG parameters:
$this->jpegQuality = MathUtility::forceIntegerInRange($gfxConf['jpg_quality'], 10, 100, 85);
$this->addFrameSelection = (bool)$gfxConf['processor_allowFrameSelection'];
if ($gfxConf['gdlib_png']) {
$this->gifExtension = 'png';
}
$this->imageFileExt = GeneralUtility::trimExplode(',', $gfxConf['imagefile_ext']);
// Boolean. This is necessary if using ImageMagick 5+.
// Effects in Imagemagick 5+ tends to render very slowly!!
// - therefore must be disabled in order not to perform sharpen, blurring and such.
$this->cmds['jpg'] = $this->cmds['jpeg'] = '-colorspace ' . $this->colorspace . ' -quality ' . $this->jpegQuality;
// ... but if 'processor_effects' is set, enable effects
if ($gfxConf['processor_effects']) {
$this->processorEffectsEnabled = true;
$this->cmds['jpg'] .= $this->v5_sharpen(10);
$this->cmds['jpeg'] .= $this->v5_sharpen(10);
}
// Secures that images are not scaled up.
$this->mayScaleUp = (bool)$gfxConf['processor_allowUpscaling'];
$this->csConvObj = GeneralUtility::makeInstance(CharsetConverter::class);
}
/*************************************************
*
* Layering images / "IMAGE" GIFBUILDER object
*
*************************************************/
/**
* Implements the "IMAGE" GIFBUILDER object, when the "mask" property is TRUE.
* It reads the two images defined by $conf['file'] and $conf['mask'] and copies the $conf['file'] onto the input image pointer image using the $conf['mask'] as a grayscale mask
* The operation involves ImageMagick for combining.
*
* @param resource $im GDlib image pointer
* @param array $conf TypoScript array with configuration for the GIFBUILDER object.
* @param array $workArea The current working area coordinates.
* @see \TYPO3\CMS\Frontend\Imaging\GifBuilder::make()
*/
public function maskImageOntoImage(&$im, $conf, $workArea)
{
if ($conf['file'] && $conf['mask']) {
$imgInf = pathinfo($conf['file']);
$imgExt = strtolower($imgInf['extension']);
if (!in_array($imgExt, $this->gdlibExtensions, true)) {
$BBimage = $this->imageMagickConvert($conf['file'], $this->gifExtension);
} else {
$BBimage = $this->getImageDimensions($conf['file']);
}
$maskInf = pathinfo($conf['mask']);
$maskExt = strtolower($maskInf['extension']);
if (!in_array($maskExt, $this->gdlibExtensions, true)) {
$BBmask = $this->imageMagickConvert($conf['mask'], $this->gifExtension);
} else {
$BBmask = $this->getImageDimensions($conf['mask']);
}
if ($BBimage && $BBmask) {
$w = imagesx($im);
$h = imagesy($im);
$tmpStr = $this->randomName();
$theImage = $tmpStr . '_img.' . $this->gifExtension;
$theDest = $tmpStr . '_dest.' . $this->gifExtension;
$theMask = $tmpStr . '_mask.' . $this->gifExtension;
// Prepare overlay image
$cpImg = $this->imageCreateFromFile($BBimage[3]);
$destImg = imagecreatetruecolor($w, $h);
// Preserve alpha transparency
if ($this->saveAlphaLayer) {
imagesavealpha($destImg, true);
$Bcolor = imagecolorallocatealpha($destImg, 0, 0, 0, 127);
imagefill($destImg, 0, 0, $Bcolor);
} else {
$Bcolor = imagecolorallocate($destImg, 0, 0, 0);
imagefilledrectangle($destImg, 0, 0, $w, $h, $Bcolor);
}
$this->copyGifOntoGif($destImg, $cpImg, $conf, $workArea);
$this->ImageWrite($destImg, $theImage);
imagedestroy($cpImg);
imagedestroy($destImg);
// Prepare mask image
$cpImg = $this->imageCreateFromFile($BBmask[3]);
$destImg = imagecreatetruecolor($w, $h);
if ($this->saveAlphaLayer) {
imagesavealpha($destImg, true);
$Bcolor = imagecolorallocatealpha($destImg, 0, 0, 0, 127);
imagefill($destImg, 0, 0, $Bcolor);
} else {
$Bcolor = imagecolorallocate($destImg, 0, 0, 0);
imagefilledrectangle($destImg, 0, 0, $w, $h, $Bcolor);
}
$this->copyGifOntoGif($destImg, $cpImg, $conf, $workArea);
$this->ImageWrite($destImg, $theMask);
imagedestroy($cpImg);
imagedestroy($destImg);
// Mask the images
$this->ImageWrite($im, $theDest);
// Let combineExec handle maskNegation
$this->combineExec($theDest, $theImage, $theMask, $theDest);
// The main image is loaded again...
$backIm = $this->imageCreateFromFile($theDest);
// ... and if nothing went wrong we load it onto the old one.
if ($backIm) {
if (!$this->saveAlphaLayer) {
imagecolortransparent($backIm, -1);
}
$im = $backIm;
}
// Unlink files from process
unlink($theDest);
unlink($theImage);
unlink($theMask);
}
}
}
/**
* Implements the "IMAGE" GIFBUILDER object, when the "mask" property is FALSE (using only $conf['file'])
*
* @param resource $im GDlib image pointer
* @param array $conf TypoScript array with configuration for the GIFBUILDER object.
* @param array $workArea The current working area coordinates.
* @see \TYPO3\CMS\Frontend\Imaging\GifBuilder::make(), maskImageOntoImage()
*/
public function copyImageOntoImage(&$im, $conf, $workArea)
{
if ($conf['file']) {
if (!in_array($conf['BBOX'][2], $this->gdlibExtensions, true)) {
$conf['BBOX'] = $this->imageMagickConvert($conf['BBOX'][3], $this->gifExtension);
$conf['file'] = $conf['BBOX'][3];
}
$cpImg = $this->imageCreateFromFile($conf['file']);
$this->copyGifOntoGif($im, $cpImg, $conf, $workArea);
imagedestroy($cpImg);
}
}
/**
* Copies two GDlib image pointers onto each other, using TypoScript configuration from $conf and the input $workArea definition.
*
* @param resource $im GDlib image pointer, destination (bottom image)
* @param resource $cpImg GDlib image pointer, source (top image)
* @param array $conf TypoScript array with the properties for the IMAGE GIFBUILDER object. Only used for the "tile" property value.
* @param array $workArea Work area
* @access private
*/
public function copyGifOntoGif(&$im, $cpImg, $conf, $workArea)
{
$cpW = imagesx($cpImg);
$cpH = imagesy($cpImg);
$tile = GeneralUtility::intExplode(',', $conf['tile']);
$tile[0] = MathUtility::forceIntegerInRange($tile[0], 1, 20);
$tile[1] = MathUtility::forceIntegerInRange($tile[1], 1, 20);
$cpOff = $this->objPosition($conf, $workArea, [$cpW * $tile[0], $cpH * $tile[1]]);
for ($xt = 0; $xt < $tile[0]; $xt++) {
$Xstart = $cpOff[0] + $cpW * $xt;
// If this image is inside of the workArea, then go on
if ($Xstart + $cpW > $workArea[0]) {
// X:
if ($Xstart < $workArea[0]) {
$cpImgCutX = $workArea[0] - $Xstart;
$Xstart = $workArea[0];
} else {
$cpImgCutX = 0;
}
$w = $cpW - $cpImgCutX;
if ($Xstart > $workArea[0] + $workArea[2] - $w) {
$w = $workArea[0] + $workArea[2] - $Xstart;
}
// If this image is inside of the workArea, then go on
if ($Xstart < $workArea[0] + $workArea[2]) {
// Y:
for ($yt = 0; $yt < $tile[1]; $yt++) {
$Ystart = $cpOff[1] + $cpH * $yt;
// If this image is inside of the workArea, then go on
if ($Ystart + $cpH > $workArea[1]) {
if ($Ystart < $workArea[1]) {
$cpImgCutY = $workArea[1] - $Ystart;
$Ystart = $workArea[1];
} else {
$cpImgCutY = 0;
}
$h = $cpH - $cpImgCutY;
if ($Ystart > $workArea[1] + $workArea[3] - $h) {
$h = $workArea[1] + $workArea[3] - $Ystart;
}
// If this image is inside of the workArea, then go on
if ($Ystart < $workArea[1] + $workArea[3]) {
$this->imagecopyresized($im, $cpImg, $Xstart, $Ystart, $cpImgCutX, $cpImgCutY, $w, $h, $w, $h);
}
}
}
}
}
}
}
/**
* Alternative function for using the similar PHP function imagecopyresized(). Used for GD2 only.
*
* OK, the reason for this stupid fix is the following story:
* GD1.x was capable of copying two images together and combining their palettes! GD2 is apparently not.
* With GD2 only the palette of the dest-image is used which mostly results in totally black images when trying to
* copy a color-ful image onto the destination.
* The GD2-fix is to
* 1) Create a blank TRUE-COLOR image
* 2) Copy the destination image onto that one
* 3) Then do the actual operation; Copying the source (top image) onto that
* 4) ... and return the result pointer.
* 5) Reduce colors (if we do not, the result may become strange!)
* It works, but the resulting images is now a true-color PNG which may be very large.
* So, why not use 'imagetruecolortopalette ($im, TRUE, 256)' - well because it does NOT WORK! So simple is that.
*
* @param resource $dstImg Destination image
* @param resource $srcImg Source image
* @param int $dstX Destination x-coordinate
* @param int $dstY Destination y-coordinate
* @param int $srcX Source x-coordinate
* @param int $srcY Source y-coordinate
* @param int $dstWidth Destination width
* @param int $dstHeight Destination height
* @param int $srcWidth Source width
* @param int $srcHeight Source height
* @access private
*/
public function imagecopyresized(&$dstImg, $srcImg, $dstX, $dstY, $srcX, $srcY, $dstWidth, $dstHeight, $srcWidth, $srcHeight)
{
if (!$this->saveAlphaLayer) {
// Make true color image
$tmpImg = imagecreatetruecolor(imagesx($dstImg), imagesy($dstImg));
// Copy the source image onto that
imagecopyresized($tmpImg, $dstImg, 0, 0, 0, 0, imagesx($dstImg), imagesy($dstImg), imagesx($dstImg), imagesy($dstImg));
// Then copy the source image onto that (the actual operation!)
imagecopyresized($tmpImg, $srcImg, $dstX, $dstY, $srcX, $srcY, $dstWidth, $dstHeight, $srcWidth, $srcHeight);
// Set the destination image
$dstImg = $tmpImg;
} else {
imagecopyresized($dstImg, $srcImg, $dstX, $dstY, $srcX, $srcY, $dstWidth, $dstHeight, $srcWidth, $srcHeight);
}
}
/********************************
*
* Text / "TEXT" GIFBUILDER object
*
********************************/
/**
* Implements the "TEXT" GIFBUILDER object
*
* @param resource $im GDlib image pointer
* @param array $conf TypoScript array with configuration for the GIFBUILDER object.
* @param array $workArea The current working area coordinates.
* @see \TYPO3\CMS\Frontend\Imaging\GifBuilder::make()
*/
public function makeText(&$im, $conf, $workArea)
{
// Spacing
list($spacing, $wordSpacing) = $this->calcWordSpacing($conf);
// Position
$txtPos = $this->txtPosition($conf, $workArea, $conf['BBOX']);
$theText = $conf['text'];
if ($conf['imgMap'] && is_array($conf['imgMap.'])) {
$this->addToMap($this->calcTextCordsForMap($conf['BBOX'][2], $txtPos, $conf['imgMap.']), $conf['imgMap.']);
}
if (!$conf['hideButCreateMap']) {
// Font Color:
$cols = $this->convertColor($conf['fontColor']);
// NiceText is calculated
if (!$conf['niceText']) {
$Fcolor = imagecolorallocate($im, $cols[0], $cols[1], $cols[2]);
// antiAliasing is setup:
$Fcolor = $conf['antiAlias'] ? $Fcolor : -$Fcolor;
for ($a = 0; $a < $conf['iterations']; $a++) {
// If any kind of spacing applys, we use this function:
if ($spacing || $wordSpacing) {
$this->SpacedImageTTFText($im, $conf['fontSize'], $conf['angle'], $txtPos[0], $txtPos[1], $Fcolor, GeneralUtility::getFileAbsFileName($conf['fontFile']), $theText, $spacing, $wordSpacing, $conf['splitRendering.']);
} else {
$this->renderTTFText($im, $conf['fontSize'], $conf['angle'], $txtPos[0], $txtPos[1], $Fcolor, $conf['fontFile'], $theText, $conf['splitRendering.'], $conf);
}
}
} else {
// NICETEXT::
// options anti_aliased and iterations is NOT available when doing this!!
$w = imagesx($im);
$h = imagesy($im);
$tmpStr = $this->randomName();
$fileMenu = $tmpStr . '_menuNT.' . $this->gifExtension;
$fileColor = $tmpStr . '_colorNT.' . $this->gifExtension;
$fileMask = $tmpStr . '_maskNT.' . $this->gifExtension;
// Scalefactor
$sF = MathUtility::forceIntegerInRange($conf['niceText.']['scaleFactor'], 2, 5);
$newW = ceil($sF * imagesx($im));
$newH = ceil($sF * imagesy($im));
// Make mask
$maskImg = imagecreatetruecolor($newW, $newH);
$Bcolor = imagecolorallocate($maskImg, 255, 255, 255);
imagefilledrectangle($maskImg, 0, 0, $newW, $newH, $Bcolor);
$Fcolor = imagecolorallocate($maskImg, 0, 0, 0);
// If any kind of spacing applies, we use this function:
if ($spacing || $wordSpacing) {
$this->SpacedImageTTFText($maskImg, $conf['fontSize'], $conf['angle'], $txtPos[0], $txtPos[1], $Fcolor, GeneralUtility::getFileAbsFileName($conf['fontFile']), $theText, $spacing, $wordSpacing, $conf['splitRendering.'], $sF);
} else {
$this->renderTTFText($maskImg, $conf['fontSize'], $conf['angle'], $txtPos[0], $txtPos[1], $Fcolor, $conf['fontFile'], $theText, $conf['splitRendering.'], $conf, $sF);
}
$this->ImageWrite($maskImg, $fileMask);
imagedestroy($maskImg);
// Downscales the mask
if (!$this->processorEffectsEnabled) {
$command = trim($this->scalecmd . ' ' . $w . 'x' . $h . '! -negate');
} else {
$command = trim($conf['niceText.']['before'] . ' ' . $this->scalecmd . ' ' . $w . 'x' . $h . '! ' . $conf['niceText.']['after'] . ' -negate');
if ($conf['niceText.']['sharpen']) {
$command .= $this->v5_sharpen($conf['niceText.']['sharpen']);
}
}
$this->imageMagickExec($fileMask, $fileMask, $command);
// Make the color-file
$colorImg = imagecreatetruecolor($w, $h);
$Ccolor = imagecolorallocate($colorImg, $cols[0], $cols[1], $cols[2]);
imagefilledrectangle($colorImg, 0, 0, $w, $h, $Ccolor);
$this->ImageWrite($colorImg, $fileColor);
imagedestroy($colorImg);
// The mask is applied
// The main pictures is saved temporarily
$this->ImageWrite($im, $fileMenu);
$this->combineExec($fileMenu, $fileColor, $fileMask, $fileMenu);
// The main image is loaded again...
$backIm = $this->imageCreateFromFile($fileMenu);
// ... and if nothing went wrong we load it onto the old one.
if ($backIm) {
if (!$this->saveAlphaLayer) {
imagecolortransparent($backIm, -1);
}
$im = $backIm;
}
// Deleting temporary files;
unlink($fileMenu);
unlink($fileColor);
unlink($fileMask);
}
}
}
/**
* Calculates text position for printing the text onto the image based on configuration like alignment and workarea.
*
* @param array $conf TypoScript array for the TEXT GIFBUILDER object
* @param array $workArea Work area definition
* @param array $BB Bounding box information, was set in \TYPO3\CMS\Frontend\Imaging\GifBuilder::start()
* @return array [0]=x, [1]=y, [2]=w, [3]=h
* @access private
* @see makeText()
*/
public function txtPosition($conf, $workArea, $BB)
{
$angle = (int)$conf['angle'] / 180 * pi();
$conf['angle'] = 0;
$straightBB = $this->calcBBox($conf);
// offset, align, valign, workarea
// [0]=x, [1]=y, [2]=w, [3]=h
$result = [];
$result[2] = $BB[0];
$result[3] = $BB[1];
$w = $workArea[2];
switch ($conf['align']) {
case 'right':
case 'center':
$factor = abs(cos($angle));
$sign = cos($angle) < 0 ? -1 : 1;
$len1 = $sign * $factor * $straightBB[0];
$len2 = $sign * $BB[0];
$result[0] = $w - ceil(($len2 * $factor + (1 - $factor) * $len1));
$factor = abs(sin($angle));
$sign = sin($angle) < 0 ? -1 : 1;
$len1 = $sign * $factor * $straightBB[0];
$len2 = $sign * $BB[1];
$result[1] = ceil($len2 * $factor + (1 - $factor) * $len1);
break;
}
switch ($conf['align']) {
case 'right':
break;
case 'center':
$result[0] = round($result[0] / 2);
$result[1] = round($result[1] / 2);
break;
default:
$result[0] = 0;
$result[1] = 0;
}
$result = $this->applyOffset($result, GeneralUtility::intExplode(',', $conf['offset']));
$result = $this->applyOffset($result, $workArea);
return $result;
}
/**
* Calculates bounding box information for the TEXT GIFBUILDER object.
*
* @param array $conf TypoScript array for the TEXT GIFBUILDER object
* @return array Array with three keys [0]/[1] being x/y and [2] being the bounding box array
* @access private
* @see txtPosition(), \TYPO3\CMS\Frontend\Imaging\GifBuilder::start()
*/
public function calcBBox($conf)
{
$sF = $this->getTextScalFactor($conf);
list($spacing, $wordSpacing) = $this->calcWordSpacing($conf, $sF);
$theText = $conf['text'];
$charInf = $this->ImageTTFBBoxWrapper($conf['fontSize'], $conf['angle'], $conf['fontFile'], $theText, $conf['splitRendering.'], $sF);
$theBBoxInfo = $charInf;
if ($conf['angle']) {
$xArr = [$charInf[0], $charInf[2], $charInf[4], $charInf[6]];
$yArr = [$charInf[1], $charInf[3], $charInf[5], $charInf[7]];
$x = max($xArr) - min($xArr);
$y = max($yArr) - min($yArr);
} else {
$x = $charInf[2] - $charInf[0];
$y = $charInf[1] - $charInf[7];
}
// Set original lineHeight (used by line breaks):
$theBBoxInfo['lineHeight'] = $y;
// If any kind of spacing applys, we use this function:
if ($spacing || $wordSpacing) {
$x = 0;
if (!$spacing && $wordSpacing) {
$bits = explode(' ', $theText);
foreach ($bits as $word) {
$word .= ' ';
$wordInf = $this->ImageTTFBBoxWrapper($conf['fontSize'], $conf['angle'], $conf['fontFile'], $word, $conf['splitRendering.'], $sF);
$wordW = $wordInf[2] - $wordInf[0];
$x += $wordW + $wordSpacing;
}
} else {
$utf8Chars = $this->csConvObj->utf8_to_numberarray($theText);
// For each UTF-8 char, do:
foreach ($utf8Chars as $char) {
$charInf = $this->ImageTTFBBoxWrapper($conf['fontSize'], $conf['angle'], $conf['fontFile'], $char, $conf['splitRendering.'], $sF);
$charW = $charInf[2] - $charInf[0];
$x += $charW + ($char === ' ' ? $wordSpacing : $spacing);
}
}
} elseif (isset($conf['breakWidth']) && $conf['breakWidth'] && $this->getRenderedTextWidth($conf['text'], $conf) > $conf['breakWidth']) {
$maxWidth = 0;
$currentWidth = 0;
$breakWidth = $conf['breakWidth'];
$breakSpace = $this->getBreakSpace($conf, $theBBoxInfo);
$wordPairs = $this->getWordPairsForLineBreak($conf['text']);
// Iterate through all word pairs:
foreach ($wordPairs as $index => $wordPair) {
$wordWidth = $this->getRenderedTextWidth($wordPair, $conf);
if ($index == 0 || $currentWidth + $wordWidth <= $breakWidth) {
$currentWidth += $wordWidth;
} else {
$maxWidth = max($maxWidth, $currentWidth);
$y += $breakSpace;
// Restart:
$currentWidth = $wordWidth;
}
}
$x = max($maxWidth, $currentWidth) * $sF;
}
if ($sF > 1) {
$x = ceil($x / $sF);
$y = ceil($y / $sF);
if (is_array($theBBoxInfo)) {
foreach ($theBBoxInfo as &$value) {
$value = ceil($value / $sF);
}
unset($value);
}
}
return [$x, $y, $theBBoxInfo];
}
/**
* Adds an <area> tag to the internal variable $this->map which is used to accumulate the content for an ImageMap
*
* @param array $cords Coordinates for a polygon image map as created by ->calcTextCordsForMap()
* @param array $conf Configuration for "imgMap." property of a TEXT GIFBUILDER object.
* @access private
* @see makeText(), calcTextCordsForMap()
*/
public function addToMap($cords, $conf)
{
$this->map .= '<area' . ' shape="poly"' . ' coords="' . implode(',', $cords) . '"'
. ' href="' . htmlspecialchars($conf['url']) . '"'
. ($conf['target'] ? ' target="' . htmlspecialchars($conf['target']) . '"' : '')
. ((string)$conf['titleText'] !== '' ? ' title="' . htmlspecialchars($conf['titleText']) . '"' : '')
. ' alt="' . htmlspecialchars($conf['altText']) . '" />';
}
/**
* Calculating the coordinates for a TEXT string on an image map. Used in an <area> tag
*
* @param array $cords Coordinates (from BBOX array)
* @param array $offset Offset array
* @param array $conf Configuration for "imgMap." property of a TEXT GIFBUILDER object.
* @return array
* @access private
* @see makeText(), calcTextCordsForMap()
*/
public function calcTextCordsForMap($cords, $offset, $conf)
{
$pars = GeneralUtility::intExplode(',', $conf['explode'] . ',');
$newCords[0] = $cords[0] + $offset[0] - $pars[0];
$newCords[1] = $cords[1] + $offset[1] + $pars[1];
$newCords[2] = $cords[2] + $offset[0] + $pars[0];
$newCords[3] = $cords[3] + $offset[1] + $pars[1];
$newCords[4] = $cords[4] + $offset[0] + $pars[0];
$newCords[5] = $cords[5] + $offset[1] - $pars[1];
$newCords[6] = $cords[6] + $offset[0] - $pars[0];
$newCords[7] = $cords[7] + $offset[1] - $pars[1];
return $newCords;
}
/**
* Printing text onto an image like the PHP function imageTTFText does but in addition it offers options for spacing of letters and words.
* Spacing is done by printing one char at a time and this means that the spacing is rather uneven and probably not very nice.
* See
*
* @param resource $im (See argument for PHP function imageTTFtext())
* @param int $fontSize (See argument for PHP function imageTTFtext())
* @param int $angle (See argument for PHP function imageTTFtext())
* @param int $x (See argument for PHP function imageTTFtext())
* @param int $y (See argument for PHP function imageTTFtext())
* @param int $Fcolor (See argument for PHP function imageTTFtext())
* @param string $fontFile (See argument for PHP function imageTTFtext())
* @param string $text (See argument for PHP function imageTTFtext()). UTF-8 string, possibly with entities in.
* @param int $spacing The spacing of letters in pixels
* @param int $wordSpacing The spacing of words in pixels
* @param array $splitRenderingConf Array
* @param int $sF Scale factor
* @access private
*/
public function SpacedImageTTFText(&$im, $fontSize, $angle, $x, $y, $Fcolor, $fontFile, $text, $spacing, $wordSpacing, $splitRenderingConf, $sF = 1)
{
$spacing *= $sF;
$wordSpacing *= $sF;
if (!$spacing && $wordSpacing) {
$bits = explode(' ', $text);
foreach ($bits as $word) {
$word .= ' ';
$wordInf = $this->ImageTTFBBoxWrapper($fontSize, $angle, $fontFile, $word, $splitRenderingConf, $sF);
$wordW = $wordInf[2] - $wordInf[0];
$this->ImageTTFTextWrapper($im, $fontSize, $angle, $x, $y, $Fcolor, $fontFile, $word, $splitRenderingConf, $sF);
$x += $wordW + $wordSpacing;
}
} else {
$utf8Chars = $this->csConvObj->utf8_to_numberarray($text);
// For each UTF-8 char, do:
foreach ($utf8Chars as $char) {
$charInf = $this->ImageTTFBBoxWrapper($fontSize, $angle, $fontFile, $char, $splitRenderingConf, $sF);
$charW = $charInf[2] - $charInf[0];
$this->ImageTTFTextWrapper($im, $fontSize, $angle, $x, $y, $Fcolor, $fontFile, $char, $splitRenderingConf, $sF);
$x += $charW + ($char === ' ' ? $wordSpacing : $spacing);
}
}
}
/**
* Function that finds the right fontsize that will render the textstring within a certain width
*
* @param array $conf The TypoScript properties of the TEXT GIFBUILDER object
* @return int The new fontSize
* @access private
* @see \TYPO3\CMS\Frontend\Imaging\GifBuilder::start()
*/
public function fontResize($conf)
{
// You have to use +calc options like [10.h] in 'offset' to get the right position of your text-image, if you use +calc in XY height!!!!
$maxWidth = (int)$conf['maxWidth'];
list($spacing, $wordSpacing) = $this->calcWordSpacing($conf);
if ($maxWidth) {
// If any kind of spacing applys, we use this function:
if ($spacing || $wordSpacing) {
return $conf['fontSize'];
}
do {
// Determine bounding box.
$bounds = $this->ImageTTFBBoxWrapper($conf['fontSize'], $conf['angle'], $conf['fontFile'], $conf['text'], $conf['splitRendering.']);
if ($conf['angle'] < 0) {
$pixelWidth = abs($bounds[4] - $bounds[0]);
} elseif ($conf['angle'] > 0) {
$pixelWidth = abs($bounds[2] - $bounds[6]);
} else {
$pixelWidth = abs($bounds[4] - $bounds[6]);
}
// Size is fine, exit:
if ($pixelWidth <= $maxWidth) {
break;
}
$conf['fontSize']--;
} while ($conf['fontSize'] > 1);
}
return $conf['fontSize'];
}
/**
* Wrapper for ImageTTFBBox
*
* @param int $fontSize (See argument for PHP function ImageTTFBBox())
* @param int $angle (See argument for PHP function ImageTTFBBox())
* @param string $fontFile (See argument for PHP function ImageTTFBBox())
* @param string $string (See argument for PHP function ImageTTFBBox())
* @param array $splitRendering Split-rendering configuration
* @param int $sF Scale factor
* @return array Information array.
*/
public function ImageTTFBBoxWrapper($fontSize, $angle, $fontFile, $string, $splitRendering, $sF = 1)
{
// Initialize:
$offsetInfo = [];
$stringParts = $this->splitString($string, $splitRendering, $fontSize, $fontFile);
// Traverse string parts:
foreach ($stringParts as $strCfg) {
$fontFile = GeneralUtility::getFileAbsFileName($strCfg['fontFile']);
if (is_readable($fontFile)) {
/**
* Calculate Bounding Box for part.
* Due to a PHP bug, we must retry if $calc[2] is negative.
*
* @see https://bugs.php.net/bug.php?id=51315
* @see https://bugs.php.net/bug.php?id=22513
*/
$try = 0;
do {
$calc = imagettfbbox($this->compensateFontSizeiBasedOnFreetypeDpi($sF * $strCfg['fontSize']), $angle, $fontFile, $strCfg['str']);
} while ($calc[2] < 0 && $try++ < 10);
// Calculate offsets:
if (empty($offsetInfo)) {
// First run, just copy over.
$offsetInfo = $calc;
} else {
$offsetInfo[2] += $calc[2] - $calc[0] + (int)$splitRendering['compX'] + (int)$strCfg['xSpaceBefore'] + (int)$strCfg['xSpaceAfter'];
$offsetInfo[3] += $calc[3] - $calc[1] - (int)$splitRendering['compY'] - (int)$strCfg['ySpaceBefore'] - (int)$strCfg['ySpaceAfter'];
$offsetInfo[4] += $calc[4] - $calc[6] + (int)$splitRendering['compX'] + (int)$strCfg['xSpaceBefore'] + (int)$strCfg['xSpaceAfter'];
$offsetInfo[5] += $calc[5] - $calc[7] - (int)$splitRendering['compY'] - (int)$strCfg['ySpaceBefore'] - (int)$strCfg['ySpaceAfter'];
}
} else {
debug('cannot read file: ' . $fontFile, self::class . '::ImageTTFBBoxWrapper()');
}
}
return $offsetInfo;
}
/**
* Wrapper for ImageTTFText
*
* @param resource $im (See argument for PHP function imageTTFtext())
* @param int $fontSize (See argument for PHP function imageTTFtext())
* @param int $angle (See argument for PHP function imageTTFtext())
* @param int $x (See argument for PHP function imageTTFtext())
* @param int $y (See argument for PHP function imageTTFtext())
* @param int $color (See argument for PHP function imageTTFtext())
* @param string $fontFile (See argument for PHP function imageTTFtext())
* @param string $string (See argument for PHP function imageTTFtext()). UTF-8 string, possibly with entities in.
* @param array $splitRendering Split-rendering configuration
* @param int $sF Scale factor
*/
public function ImageTTFTextWrapper($im, $fontSize, $angle, $x, $y, $color, $fontFile, $string, $splitRendering, $sF = 1)
{
// Initialize:
$stringParts = $this->splitString($string, $splitRendering, $fontSize, $fontFile);
$x = ceil($sF * $x);
$y = ceil($sF * $y);
// Traverse string parts:
foreach ($stringParts as $i => $strCfg) {
// Initialize:
$colorIndex = $color;
// Set custom color if any (only when niceText is off):
if ($strCfg['color'] && $sF == 1) {
$cols = $this->convertColor($strCfg['color']);
$colorIndex = imagecolorallocate($im, $cols[0], $cols[1], $cols[2]);
$colorIndex = $color >= 0 ? $colorIndex : -$colorIndex;
}
// Setting xSpaceBefore
if ($i) {
$x += (int)$strCfg['xSpaceBefore'];
$y -= (int)$strCfg['ySpaceBefore'];