/home/kueuepay/public_html/vendor/intervention/image/src/Intervention/Image/Gd/Font.php
<?php
namespace Intervention\Image\Gd;
use Intervention\Image\Exception\NotSupportedException;
use Intervention\Image\Image;
class Font extends \Intervention\Image\AbstractFont
{
/**
* Get font size in points
*
* @return int
*/
protected function getPointSize()
{
return intval(ceil($this->size * 0.75));
}
/**
* Filter function to access internal integer font values
*
* @return int
*/
private function getInternalFont()
{
$internalfont = is_null($this->file) ? 1 : $this->file;
$internalfont = is_numeric($internalfont) ? $internalfont : false;
if ( ! in_array($internalfont, [1, 2, 3, 4, 5])) {
throw new NotSupportedException(
sprintf('Internal GD font (%s) not available. Use only 1-5.', $internalfont)
);
}
return intval($internalfont);
}
/**
* Get width of an internal font character
*
* @return int
*/
private function getInternalFontWidth()
{
return $this->getInternalFont() + 4;
}
/**
* Get height of an internal font character
*
* @return int
*/
private function getInternalFontHeight()
{
switch ($this->getInternalFont()) {
case 1:
return 8;
case 2:
return 14;
case 3:
return 14;
case 4:
return 16;
case 5:
return 16;
}
}
/**
* Calculates bounding box of current font setting
*
* @return Array
*/
public function getBoxSize()
{
$box = [];
if ($this->hasApplicableFontFile()) {
// imagettfbbox() converts numeric entities to their respective
// character. Preserve any originally double encoded entities to be
// represented as is.
// eg: &#160; will render   rather than its character.
$this->text = preg_replace('/&(#(?:x[a-fA-F0-9]+|[0-9]+);)/', '&\1', $this->text);
$this->text = mb_encode_numericentity($this->text, array(0x0080, 0xffff, 0, 0xffff), 'UTF-8');
// get bounding box with angle 0
$box = imagettfbbox($this->getPointSize(), 0, $this->file, $this->text);
// rotate points manually
if ($this->angle != 0) {
$angle = pi() * 2 - $this->angle * pi() * 2 / 360;
for ($i=0; $i<4; $i++) {
$x = $box[$i * 2];
$y = $box[$i * 2 + 1];
$box[$i * 2] = cos($angle) * $x - sin($angle) * $y;
$box[$i * 2 + 1] = sin($angle) * $x + cos($angle) * $y;
}
}
$box['width'] = intval(abs($box[4] - $box[0]));
$box['height'] = intval(abs($box[5] - $box[1]));
} else {
// get current internal font size
$width = $this->getInternalFontWidth();
$height = $this->getInternalFontHeight();
if (strlen($this->text) == 0) {
// no text -> no boxsize
$box['width'] = 0;
$box['height'] = 0;
} else {
// calculate boxsize
$box['width'] = strlen($this->text) * $width;
$box['height'] = $height;
}
}
return $box;
}
/**
* Draws font to given image at given position
*
* @param Image $image
* @param int $posx
* @param int $posy
* @return void
*/
public function applyToImage(Image $image, $posx = 0, $posy = 0)
{
// parse text color
$color = new Color($this->color);
if ($this->hasApplicableFontFile()) {
if ($this->angle != 0 || is_string($this->align) || is_string($this->valign)) {
$box = $this->getBoxSize();
$align = is_null($this->align) ? 'left' : strtolower($this->align);
$valign = is_null($this->valign) ? 'bottom' : strtolower($this->valign);
// correction on position depending on v/h alignment
switch ($align.'-'.$valign) {
case 'center-top':
$posx = $posx - round(($box[6]+$box[4])/2);
$posy = $posy - round(($box[7]+$box[5])/2);
break;
case 'right-top':
$posx = $posx - $box[4];
$posy = $posy - $box[5];
break;
case 'left-top':
$posx = $posx - $box[6];
$posy = $posy - $box[7];
break;
case 'center-center':
case 'center-middle':
$posx = $posx - round(($box[0]+$box[4])/2);
$posy = $posy - round(($box[1]+$box[5])/2);
break;
case 'right-center':
case 'right-middle':
$posx = $posx - round(($box[2]+$box[4])/2);
$posy = $posy - round(($box[3]+$box[5])/2);
break;
case 'left-center':
case 'left-middle':
$posx = $posx - round(($box[0]+$box[6])/2);
$posy = $posy - round(($box[1]+$box[7])/2);
break;
case 'center-bottom':
$posx = $posx - round(($box[0]+$box[2])/2);
$posy = $posy - round(($box[1]+$box[3])/2);
break;
case 'right-bottom':
$posx = $posx - $box[2];
$posy = $posy - $box[3];
break;
case 'left-bottom':
$posx = $posx - $box[0];
$posy = $posy - $box[1];
break;
}
}
// enable alphablending for imagettftext
imagealphablending($image->getCore(), true);
// draw ttf text
imagettftext($image->getCore(), $this->getPointSize(), $this->angle, $posx, $posy, $color->getInt(), $this->file, $this->text);
} else {
// get box size
$box = $this->getBoxSize();
$width = $box['width'];
$height = $box['height'];
// internal font specific position corrections
if ($this->getInternalFont() == 1) {
$top_correction = 1;
$bottom_correction = 2;
} elseif ($this->getInternalFont() == 3) {
$top_correction = 2;
$bottom_correction = 4;
} else {
$top_correction = 3;
$bottom_correction = 4;
}
// x-position corrections for horizontal alignment
switch (strtolower($this->align)) {
case 'center':
$posx = ceil($posx - ($width / 2));
break;
case 'right':
$posx = ceil($posx - $width) + 1;
break;
}
// y-position corrections for vertical alignment
switch (strtolower($this->valign)) {
case 'center':
case 'middle':
$posy = ceil($posy - ($height / 2));
break;
case 'top':
$posy = ceil($posy - $top_correction);
break;
default:
case 'bottom':
$posy = round($posy - $height + $bottom_correction);
break;
}
// draw text
imagestring($image->getCore(), $this->getInternalFont(), $posx, $posy, $this->text, $color->getInt());
}
}
/**
* Set text kerning
*
* @param string $kerning
* @return void
*/
public function kerning($kerning)
{
throw new \Intervention\Image\Exception\NotSupportedException(
"Kerning is not supported by GD driver."
);
}
}
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