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imagettftextblur helper

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This commit is contained in:
Ismo Vuorinen
2013-12-10 07:20:52 +02:00
committed by Ismo Vuorinen
parent fc0f80fa87
commit 0e3fe358d4
1 changed files with 131 additions and 0 deletions
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131
application/helpers/ecards_helper.php
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@@ -80,6 +80,137 @@ function checkboxed(
return $string;
}
/*
* imagettftextblur v1.0.0
*
* Copyright (c) 2013 Andrew G. Johnson <andrew@andrewgjohnson.com>
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
* THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* @author Andrew G. Johnson <andrew@andrewgjohnson.com>
* @copyright Copyright (c) 2013 Andrew G. Johnson <andrew@andrewgjohnson.com>
* @link http://github.com/andrewgjohnson/imagettftextblur
* @license http://www.opensource.org/licenses/mit-license.php The MIT License
* @version 1.0.0
* @package imagettftextblur
*
*/
if (!function_exists('imagettftextblur')) {
/**
* imagettftextblur
*
* @author Andrew G. Johnson <andrew@andrewgjohnson.com>
* @link http://github.com/andrewgjohnson/imagettftextblur
*
* @param resource $image Image resource
* @param integer $size Font size
* @param integer $angle Text angle
* @param integer $x First letter x cordinate
* @param integer $y First letter baseline y cordinate
* @param integer $color Color index
* @param string $fontfile Path to font file (.ttf)
* @param string $text Text on image
* @param integer $blur_intensity Blur intensity, more the blurrier
* @return [type] [description]
*/
function imagettftextblur(
&$image,
$size,
$angle,
$x,
$y,
$color,
$fontfile,
$text,
$blur_intensity = null
) {
$blur_intensity = !is_null($blur_intensity) && is_numeric($blur_intensity)
? (int)$blur_intensity : 0;
if ($blur_intensity > 0) {
$text_shadow_image = imagecreatetruecolor(
imagesx($image),
imagesy($image)
);
imagefill(
$text_shadow_image,
0,
0,
imagecolorallocate(
$text_shadow_image,
0x00,
0x00,
0x00
)
);
imagettftext(
$text_shadow_image,
$size,
$angle,
$x,
$y,
imagecolorallocate(
$text_shadow_image,
0xFF,
0xFF,
0xFF
),
$fontfile,
$text
);
for ($blur = 1; $blur <= $blur_intensity; $blur++) {
imagefilter($text_shadow_image, IMG_FILTER_GAUSSIAN_BLUR);
}
for ($x_offset = 0; $x_offset < imagesx($text_shadow_image); $x_offset++) {
for ($y_offset = 0; $y_offset < imagesy($text_shadow_image); $y_offset++) {
$visibility = (imagecolorat($text_shadow_image, $x_offset, $y_offset) & 0xFF) / 255;
if ($visibility > 0) {
imagesetpixel(
$image,
$x_offset,
$y_offset,
imagecolorallocatealpha(
$image,
($color >> 16) & 0xFF,
($color >> 8) & 0xFF,
$color & 0xFF,
(1 - $visibility) * 127
)
);
}
}
}
imagedestroy($text_shadow_image);
} else {
return imagettftext(
$image,
$size,
$angle,
$x,
$y,
$color,
$fontfile,
$text
);
}
}
}
function fetchBaseCards($from = null)
{
if (empty($from)) {