/**
* Method to apply a filter to an image resource.
*
* @param array $options An array of options for the filter.
*
* @return void
*
* @throws InvalidArgumentException
* @throws RuntimeException
*/
public function execute(array $options = array())
{
// Verify that image filter support for PHP is available.
if (!function_exists('imagefilter')) {
throw new RuntimeException('The imagefilter function for PHP is not available.');
}
if (empty($options)) {
throw new InvalidArgumentException('No valid amount was given. Expected float.');
}
$value = (int) array_shift($options);
if ($value == 0) {
$value = 128;
}
$width = imagesx($this->handle);
$height = imagesy($this->handle);
for ($x = 0; $x < $width; ++$x) {
for ($y = 0; $y < $height; ++$y) {
$index = imagecolorat($this->handle, $x, $y);
$rgb = imagecolorsforindex($this->handle, $index);
$r = $rgb['red'];
$g = $rgb['green'];
$b = $rgb['blue'];
$a = $rgb['alpha'];
$v = round(($r + $g + $b) / 3) >= $value ? 255 : 0;
$color = imagecolorallocatealpha($this->handle, $v, $v, $v, $a);
if ($color === false) {
$color = imagecolorclosestalpha($this->handle, $v, $v, $v, $a);
}
imagesetpixel($this->handle, $x, $y, $color);
}
}
}
function getClosestColorAlpha($R, $G = null, $B = null, $A = null)
{
if (is_array($R)) {
return imagecolorclosestalpha($this->handle, $R['red'], $R['green'], $R['blue'], $R['alpha']);
} else {
return imagecolorclosestalpha($this->handle, $R, $G, $B, $A);
}
}
/**
* Method to apply a filter to an image resource.
*
* @param array $options An array of options for the filter.
*
* @return void
*
* @throws InvalidArgumentException
* @throws RuntimeException
*/
public function execute(array $options = array())
{
// Verify that image filter support for PHP is available.
if (!function_exists('imagefilter')) {
throw new RuntimeException('The imagefilter function for PHP is not available.');
}
if (empty($options)) {
throw new InvalidArgumentException('No valid amount was given. Expected float.');
}
// percent value
$value = (int) array_shift($options);
if ($value == 0) {
return true;
}
$value = $value / 100;
// set max / min
$value = max(-1, min(1, $value));
// get width / height
$width = imagesx($this->handle);
$height = imagesy($this->handle);
for ($x = 0; $x < $width; ++$x) {
for ($y = 0; $y < $height; ++$y) {
$index = imagecolorat($this->handle, $x, $y);
$rgb = imagecolorsforindex($this->handle, $index);
$r = $rgb['red'];
$g = $rgb['green'];
$b = $rgb['blue'];
$a = $rgb['alpha'];
$average = ($r + $g + $b) / 3;
$r += round(($r - $average) * $value);
$g += round(($g - $average) * $value);
$b += round(($b - $average) * $value);
// clamp
$r = min(255, max(0, $r));
$g = min(255, max(0, $g));
$b = min(255, max(0, $b));
$color = imagecolorallocatealpha($this->handle, $r, $g, $b, $a);
if ($color === false) {
$color = imagecolorclosestalpha($this->handle, $r, $g, $b, $a);
}
imagesetpixel($this->handle, $x, $y, $color);
}
}
}
/**
* Method to apply a filter to an image resource.
*
* @param array $options An array of options for the filter.
*
* @return void
*
* @throws InvalidArgumentException
* @throws RuntimeException
*/
public function execute(array $options = array())
{
// Verify that image filter support for PHP is available.
if (!function_exists('imagefilter')) {
throw new RuntimeException('The imagefilter function for PHP is not available.');
}
if (empty($options)) {
throw new InvalidArgumentException('No valid amount was given. Expected float.');
}
$amount = (int) array_shift($options);
// 39, 14, -36
/*if (imagefilter($this->handle, IMG_FILTER_GRAYSCALE)) {
imagefilter($this->handle, IMG_FILTER_COLORIZE, 39, 14, -36);
}*/
// Microsoft Sepia
$width = imagesx($this->handle);
$height = imagesy($this->handle);
for ($x = 0; $x < $width; ++$x) {
for ($y = 0; $y < $height; ++$y) {
$index = imagecolorat($this->handle, $x, $y);
$rgb = imagecolorsforindex($this->handle, $index);
$r = $rgb['red'];
$g = $rgb['green'];
$b = $rgb['blue'];
$a = $rgb['alpha'];
$v1 = $r * 0.393 + $g * 0.769 + $b * 0.189;
$v2 = $r * 0.349 + $g * 0.6860000000000001 + $b * 0.168;
$v3 = $r * 0.272 + $g * 0.534 + $b * 0.131;
// clamp
$v1 = min(255, max(0, $v1));
$v2 = min(255, max(0, $v2));
$v3 = min(255, max(0, $v3));
$color = imagecolorallocatealpha($this->handle, $v1, $v2, $v3, $a);
if ($color === false) {
$color = imagecolorclosestalpha($this->handle, $v1, $v2, $v3, $a);
}
imagesetpixel($this->handle, $x, $y, $color);
}
}
}
/**
* imageconvolution() does not appear in PHP with non-bundled GD libraries.
* Because this is written in PHP, it is much slower than the bundled version.
*
* @param resource $image an image resource
* @param array $matrix a 3x3 matrix: an array of three arrays of three floats
* @param float $div the divisor of the result of the convolution, used for normalization
* @param float $offset color offset
* @return bool true on success or false on failure
* @access private
*/
private function imageconvolution($image, $matrix, $div, $offset)
{
if ($image == null) {
return 0;
}
$srcW = imagesx($image);
$srcH = imagesy($image);
$pxl = array(1, 1);
$tmp = imagecreatetruecolor($srcW, $srcH);
imagealphablending($tmp, false);
imagealphablending($image, false);
imagecopy($tmp, $image, 0, 0, 0, 0, $srcW, $srcH);
if ($tmp == null) {
return 0;
}
for ($y = 0; $y < $srcH; ++$y) {
for ($x = 0; $x < $srcW; ++$x) {
$newR = $newG = $newB = 0;
$alpha = imagecolorat($tmp, @$pxl[0], @$pxl[1]);
$newA = $alpha >> 24;
for ($j = 0; $j < 3; ++$j) {
$yv = min(max($y - 1 + $j, 0), $srcH - 1);
for ($i = 0; $i < 3; ++$i) {
$pxl = array(min(max($x - 1 + $i, 0), $srcW - 1), $yv);
$rgb = imagecolorat($tmp, $pxl[0], $pxl[1]);
$newR += ($rgb >> 16 & 0xff) * $matrix[$j][$i];
$newG += ($rgb >> 8 & 0xff) * $matrix[$j][$i];
$newB += ($rgb & 0xff) * $matrix[$j][$i];
$newA += ((0x7f000000 & $rgb) >> 24) * $matrix[$j][$i];
}
}
$newR = $newR / $div + $offset;
$newG = $newG / $div + $offset;
$newB = $newB / $div + $offset;
$newA = $newA / $div + $offset;
$newR = $newR > 255 ? 255 : ($newR < 0 ? 0 : $newR);
$newG = $newG > 255 ? 255 : ($newG < 0 ? 0 : $newG);
$newB = $newB > 255 ? 255 : ($newB < 0 ? 0 : $newB);
$newA = $newA > 127 ? 127 : ($newA < 0 ? 0 : $newA);
$newCol = imagecolorallocatealpha($image, (int) $newR, (int) $newG, (int) $newB, (int) $newA);
if ($newCol == -1) {
$newCol = imagecolorclosestalpha($image, (int) $newR, (int) $newG, (int) $newB, (int) $newA);
}
if ($y >= 0 && $y < $srcH) {
imagesetpixel($image, $x, $y, $newCol);
}
}
}
imagedestroy($tmp);
return 1;
}
function imageconvolution($src, $filter, $filter_div, $offset)
{
if ($src == NULL) {
return false;
}
$sx = imagesx($src);
$sy = imagesy($src);
$srcback = imagecreatetruecolor($sx, $sy);
imagecopy($srcback, $src, 0, 0, 0, 0, $sx, $sy);
if ($srcback == NULL) {
return 0;
}
for ($y = 0; $y < $sy; ++$y) {
for ($x = 0; $x < $sx; ++$x) {
$new_r = $new_g = $new_b = 0;
$alpha = imagecolorat($srcback, $pxl[0], $pxl[1]);
$new_a = $alpha >> 24;
for ($j = 0; $j < 3; ++$j) {
$yv = min(max($y - 1 + $j, 0), $sy - 1);
for ($i = 0; $i < 3; ++$i) {
$pxl = array(min(max($x - 1 + $i, 0), $sx - 1), $yv);
$rgb = imagecolorat($srcback, $pxl[0], $pxl[1]);
$new_r += ($rgb >> 16 & 0xff) * $filter[$j][$i];
$new_g += ($rgb >> 8 & 0xff) * $filter[$j][$i];
$new_b += ($rgb & 0xff) * $filter[$j][$i];
}
}
$new_r = $new_r / $filter_div + $offset;
$new_g = $new_g / $filter_div + $offset;
$new_b = $new_b / $filter_div + $offset;
$new_r = $new_r > 255 ? 255 : ($new_r < 0 ? 0 : $new_r);
$new_g = $new_g > 255 ? 255 : ($new_g < 0 ? 0 : $new_g);
$new_b = $new_b > 255 ? 255 : ($new_b < 0 ? 0 : $new_b);
$new_pxl = imagecolorallocatealpha($src, (int) $new_r, (int) $new_g, (int) $new_b, $new_a);
if ($new_pxl == -1) {
$new_pxl = imagecolorclosestalpha($src, (int) $new_r, (int) $new_g, (int) $new_b, $new_a);
}
if ($y >= 0 && $y < $sy) {
imagesetpixel($src, $x, $y, $new_pxl);
}
}
}
imagedestroy($srcback);
return true;
}
function imageconvolution($src, $filter, $filter_div, $offset)
{
if ($src == NULL) {
return 0;
}
$sx = imagesx($src);
$sy = imagesy($src);
$srcback = imagecreatetruecolor($sx, $sy);
imagecopy($srcback, $src, 0, 0, 0, 0, $sx, $sy);
if ($srcback == NULL) {
return 0;
}
// Fix here
// $pxl array was the problem so simply set it with very low values
$pxl = array(1, 1);
// this little fix worked for me as the undefined array threw out errors
for ($y = 0; $y < $sy; ++$y) {
for ($x = 0; $x < $sx; ++$x) {
$new_r = $new_g = $new_b = 0;
$alpha = imagecolorat($srcback, $pxl[0], $pxl[1]);
$new_a = $alpha >> 24;
for ($j = 0; $j < 3; ++$j) {
$yv = min(max($y - 1 + $j, 0), $sy - 1);
for ($i = 0; $i < 3; ++$i) {
$pxl = array(min(max($x - 1 + $i, 0), $sx - 1), $yv);
$rgb = imagecolorat($srcback, $pxl[0], $pxl[1]);
$new_r += ($rgb >> 16 & 0xff) * $filter[$j][$i];
$new_g += ($rgb >> 8 & 0xff) * $filter[$j][$i];
$new_b += ($rgb & 0xff) * $filter[$j][$i];
}
}
$new_r = $new_r / $filter_div + $offset;
$new_g = $new_g / $filter_div + $offset;
$new_b = $new_b / $filter_div + $offset;
$new_r = $new_r > 255 ? 255 : ($new_r < 0 ? 0 : $new_r);
$new_g = $new_g > 255 ? 255 : ($new_g < 0 ? 0 : $new_g);
$new_b = $new_b > 255 ? 255 : ($new_b < 0 ? 0 : $new_b);
$new_pxl = imagecolorallocatealpha($src, (int) $new_r, (int) $new_g, (int) $new_b, $new_a);
if ($new_pxl == -1) {
$new_pxl = imagecolorclosestalpha($src, (int) $new_r, (int) $new_g, (int) $new_b, $new_a);
}
if ($y >= 0 && $y < $sy) {
imagesetpixel($src, $x, $y, $new_pxl);
}
}
}
imagedestroy($srcback);
return 1;
}
public function getColorIndex($img, $color)
{
// Now set the destination pixel.
$colorIndex = imagecolorallocatealpha($img, $color['red'], $color['green'], $color['blue'], $color['alpha']);
// If we failed to allocate the color, try to find the already allocated color
// that is closest to what we want.
if ($colorIndex === false) {
$colorIndex = imagecolorclosestalpha($img, $color['red'], $color['green'], $color['blue'], $color['alpha']);
}
return $colorIndex;
}
function imagefilter($source, $var, $arg1 = null, $arg2 = null, $arg3 = null)
{
#define('IMAGE_FILTER_NEGATE',0);
#define('IMAGE_FILTER_GRAYSCALE',0);
#define('IMAGE_FILTER_BRIGHTNESS',2);
#define('IMAGE_FILTER_CONTRAST',3);
#define('IMAGE_FILTER_COLORIZE',4);
#define('IMAGE_FILTER_EDGEDETECT',5);
#define('IMAGE_FILTER_EMBOSS',6);
#define('IMAGE_FILTER_GAUSSIAN_BLUR',7);
#define('IMAGE_FILTER_SELECTIVE_BLUR',8);
#define('IMAGE_FILTER_MEAN_REMOVAL',9);
#define('IMAGE_FILTER_SMOOTH',10);
$max_y = imagesy($source);
$max_x = imagesx($source);
switch ($var) {
case 0:
$y = 0;
while ($y < $max_y) {
$x = 0;
while ($x < $max_x) {
$rgb = imagecolorat($source, $x, $y);
$r = 255 - ($rgb >> 16 & 0xff);
$g = 255 - ($rgb >> 8 & 0xff);
$b = 255 - ($rgb & 0xff);
$a = $rgb >> 24;
$new_pxl = imagecolorallocatealpha($source, $r, $g, $b, $a);
if ($new_pxl == false) {
$new_pxl = imagecolorclosestalpha($source, $r, $g, $b, $a);
}
imagesetpixel($source, $x, $y, $new_pxl);
++$x;
}
++$y;
}
return true;
break;
case 1:
$y = 0;
while ($y < $max_y) {
$x = 0;
while ($x < $max_x) {
$rgb = imagecolorat($source, $x, $y);
$a = $rgb >> 24;
$r = ($rgb >> 16 & 0xff) * 0.299 + ($rgb >> 8 & 0xff) * 0.587 + ($rgb & 0xff) * 0.114;
$new_pxl = imagecolorallocatealpha($source, $r, $r, $r, $a);
if ($new_pxl == false) {
$new_pxl = imagecolorclosestalpha($source, $r, $r, $r, $a);
}
imagesetpixel($source, $x, $y, $new_pxl);
++$x;
}
++$y;
}
return true;
break;
case 2:
$y = 0;
while ($y < $max_y) {
$x = 0;
while ($x < $max_x) {
$rgb = imagecolorat($source, $x, $y);
$r = ($rgb >> 16 & 0xff) + $arg1;
$g = ($rgb >> 8 & 0xff) + $arg1;
$b = ($rgb & 0xff) + $arg1;
$a = $rgb >> 24;
$r = $r > 255 ? 255 : ($r < 0 ? 0 : $r);
$g = $g > 255 ? 255 : ($g < 0 ? 0 : $g);
$b = $b > 255 ? 255 : ($b < 0 ? 0 : $b);
$new_pxl = imagecolorallocatealpha($source, $r, $g, $b, $a);
if ($new_pxl == false) {
$new_pxl = imagecolorclosestalpha($source, $r, $g, $b, $a);
}
imagesetpixel($source, $x, $y, $new_pxl);
++$x;
}
++$y;
}
return true;
break;
case 3:
$contrast = pow((100 - $arg1) / 100, 2);
$y = 0;
while ($y < $max_y) {
$x = 0;
while ($x < $max_x) {
$rgb = imagecolorat($source, $x, $y);
$a = $rgb >> 24;
$r = ((($rgb >> 16 & 0xff) / 255 - 0.5) * $contrast + 0.5) * 255;
$g = ((($rgb >> 8 & 0xff) / 255 - 0.5) * $contrast + 0.5) * 255;
$b = ((($rgb & 0xff) / 255 - 0.5) * $contrast + 0.5) * 255;
$r = $r > 255 ? 255 : ($r < 0 ? 0 : $r);
$g = $g > 255 ? 255 : ($g < 0 ? 0 : $g);
$b = $b > 255 ? 255 : ($b < 0 ? 0 : $b);
$new_pxl = imagecolorallocatealpha($source, $r, $g, $b, $a);
if ($new_pxl == false) {
$new_pxl = imagecolorclosestalpha($source, $r, $g, $b, $a);
}
imagesetpixel($source, $x, $y, $new_pxl);
++$x;
}
++$y;
}
return true;
break;
case 4:
$x = 0;
while ($x < $max_x) {
$y = 0;
while ($y < $max_y) {
$rgb = imagecolorat($source, $x, $y);
$r = ($rgb >> 16 & 0xff) + $arg1;
$g = ($rgb >> 8 & 0xff) + $arg2;
$b = ($rgb & 0xff) + $arg3;
$a = $rgb >> 24;
$r = $r > 255 ? 255 : ($r < 0 ? 0 : $r);
$g = $g > 255 ? 255 : ($g < 0 ? 0 : $g);
$b = $b > 255 ? 255 : ($b < 0 ? 0 : $b);
$new_pxl = imagecolorallocatealpha($source, $r, $g, $b, $a);
if ($new_pxl == false) {
$new_pxl = imagecolorclosestalpha($source, $r, $g, $b, $a);
}
imagesetpixel($source, $x, $y, $new_pxl);
++$y;
}
++$x;
}
return true;
break;
case 5:
return imageconvolution($source, array(array(-1, 0, -1), array(0, 4, 0), array(-1, 0, -1)), 1, 127);
break;
case 6:
return imageconvolution($source, array(array(1.5, 0, 0), array(0, 0, 0), array(0, 0, -1.5)), 1, 127);
break;
case 7:
return imageconvolution($source, array(array(1, 2, 1), array(2, 4, 2), array(1, 2, 1)), 16, 0);
break;
case 8:
for ($y = 0; $y < $max_y; $y++) {
for ($x = 0; $x < $max_x; $x++) {
$flt_r_sum = $flt_g_sum = $flt_b_sum = 0;
$cpxl = imagecolorat($source, $x, $y);
for ($j = 0; $j < 3; $j++) {
for ($i = 0; $i < 3; $i++) {
if ($j == 1 && $i == 1) {
$flt_r[1][1] = $flt_g[1][1] = $flt_b[1][1] = 0.5;
} else {
$pxl = imagecolorat($source, $x - (3 >> 1) + $i, $y - (3 >> 1) + $j);
$new_a = $pxl >> 24;
//$r = (($pxl >> 16) & 0xFF);
//$g = (($pxl >> 8) & 0xFF);
//$b = ($pxl & 0xFF);
$new_r = abs(($cpxl >> 16 & 0xff) - ($pxl >> 16 & 0xff));
if ($new_r != 0) {
$flt_r[$j][$i] = 1 / $new_r;
} else {
$flt_r[$j][$i] = 1;
}
$new_g = abs(($cpxl >> 8 & 0xff) - ($pxl >> 8 & 0xff));
if ($new_g != 0) {
$flt_g[$j][$i] = 1 / $new_g;
} else {
$flt_g[$j][$i] = 1;
}
$new_b = abs(($cpxl & 0xff) - ($pxl & 0xff));
if ($new_b != 0) {
$flt_b[$j][$i] = 1 / $new_b;
} else {
$flt_b[$j][$i] = 1;
}
}
$flt_r_sum += $flt_r[$j][$i];
$flt_g_sum += $flt_g[$j][$i];
$flt_b_sum += $flt_b[$j][$i];
}
}
for ($j = 0; $j < 3; $j++) {
for ($i = 0; $i < 3; $i++) {
if ($flt_r_sum != 0) {
$flt_r[$j][$i] /= $flt_r_sum;
}
if ($flt_g_sum != 0) {
$flt_g[$j][$i] /= $flt_g_sum;
}
if ($flt_b_sum != 0) {
$flt_b[$j][$i] /= $flt_b_sum;
}
}
}
$new_r = $new_g = $new_b = 0;
for ($j = 0; $j < 3; $j++) {
for ($i = 0; $i < 3; $i++) {
$pxl = imagecolorat($source, $x - (3 >> 1) + $i, $y - (3 >> 1) + $j);
$new_r += ($pxl >> 16 & 0xff) * $flt_r[$j][$i];
$new_g += ($pxl >> 8 & 0xff) * $flt_g[$j][$i];
$new_b += ($pxl & 0xff) * $flt_b[$j][$i];
}
}
$new_r = $new_r > 255 ? 255 : ($new_r < 0 ? 0 : $new_r);
$new_g = $new_g > 255 ? 255 : ($new_g < 0 ? 0 : $new_g);
$new_b = $new_b > 255 ? 255 : ($new_b < 0 ? 0 : $new_b);
$new_pxl = ImageColorAllocateAlpha($source, (int) $new_r, (int) $new_g, (int) $new_b, $new_a);
if ($new_pxl == false) {
$new_pxl = ImageColorClosestAlpha($source, (int) $new_r, (int) $new_g, (int) $new_b, $new_a);
}
imagesetpixel($source, $x, $y, $new_pxl);
}
}
return true;
break;
case 9:
return imageconvolution($source, array(array(-1, -1, -1), array(-1, 9, -1), array(-1, -1, -1)), 1, 0);
break;
case 10:
return imageconvolution($source, array(array(1, 1, 1), array(1, $arg1, 1), array(1, 1, 1)), $arg1 + 8, 0);
break;
}
}
public function closest(string $rgb) : int
{
$rgb = explode('|', $rgb);
$red = isset($rgb[0]) ? $rgb[0] : 0;
$green = isset($rgb[1]) ? $rgb[1] : 0;
$blue = isset($rgb[2]) ? $rgb[2] : 0;
$alpha = isset($rgb[3]) ? $rgb[3] : 0;
return imagecolorclosestalpha($this->canvas, $red, $green, $blue, $alpha);
}
$AF_colorize_RGB = array(base_convert(substr($colorize, 0, 2), 16, 10), base_convert(substr($colorize, 2, 2), 16, 10), base_convert(substr($colorize, 4, 2), 16, 10));
$x = 0;
while ($x < $src_w) {
$y = 0;
while ($y < $src_h) {
$rgb = imagecolorat($src_img, $x, $y);
$r = ($rgb >> 16 & 0xff) + $AF_colorize_RGB[0];
$g = ($rgb >> 8 & 0xff) + $AF_colorize_RGB[1];
$b = ($rgb & 0xff) + $AF_colorize_RGB[2];
$a = $rgb >> 24;
$r = $r > 255 ? 255 : ($r < 0 ? 0 : $r);
$g = $g > 255 ? 255 : ($g < 0 ? 0 : $g);
$b = $b > 255 ? 255 : ($b < 0 ? 0 : $b);
$new_pxl = imagecolorallocatealpha($src_img, $r, $g, $b, $a);
if ($new_pxl == false) {
$new_pxl = imagecolorclosestalpha($src_img, $r, $g, $b, $a);
}
imagesetpixel($src_img, $x, $y, $new_pxl);
++$y;
}
++$x;
}
}
$dst_img = imagecreatetruecolor($dst_w, $dst_h);
$AF_bgcolor_RGB = array(base_convert(substr($bgcolor, 0, 2), 16, 10), base_convert(substr($bgcolor, 2, 2), 16, 10), base_convert(substr($bgcolor, 4, 2), 16, 10));
$AF_BGCOLOR = imagecolorallocatealpha($dst_img, $AF_bgcolor_RGB[0], $AF_bgcolor_RGB[1], $AF_bgcolor_RGB[2], 127);
imagefill($dst_img, 0, 0, $AF_BGCOLOR);
imagecopyresampled($dst_img, $src_img, 0, 0, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h);
header('Content-type: image/png');
imagesavealpha($dst_img, true);
imagepng($dst_img, NULL, 0);
/**
* Watermark - Text Version
*
* @access public
* @return bool
*/
function text_watermark()
{
if (!($src_img = $this->image_create_gd())) {
return FALSE;
}
if ($this->wm_use_truetype == TRUE and !file_exists($this->wm_font_path)) {
$this->set_error('imglib_missing_font');
return FALSE;
}
// Fetch source image properties
$this->get_image_properties();
// Set RGB values for text and shadow
$this->wm_font_color = str_replace('#', '', $this->wm_font_color);
$this->wm_shadow_color = str_replace('#', '', $this->wm_shadow_color);
$R1 = hexdec(substr($this->wm_font_color, 0, 2));
$G1 = hexdec(substr($this->wm_font_color, 2, 2));
$B1 = hexdec(substr($this->wm_font_color, 4, 2));
$R2 = hexdec(substr($this->wm_shadow_color, 0, 2));
$G2 = hexdec(substr($this->wm_shadow_color, 2, 2));
$B2 = hexdec(substr($this->wm_shadow_color, 4, 2));
// Reverse the vertical offset
// When the image is positioned at the bottom
// we don't want the vertical offset to push it
// further down. We want the reverse, so we'll
// invert the offset. Note: The horizontal
// offset flips itself automatically
if ($this->wm_vrt_alignment == 'B') {
$this->wm_vrt_offset = $this->wm_vrt_offset * -1;
}
if ($this->wm_hor_alignment == 'R') {
$this->wm_hor_offset = $this->wm_hor_offset * -1;
}
// Set font width and height
// These are calculated differently depending on
// whether we are using the true type font or not
if ($this->wm_use_truetype == TRUE) {
if ($this->wm_font_size == '') {
$this->wm_font_size = '17';
}
//$fontwidth = $this->wm_font_size-($this->wm_font_size/4);
//AG_EDIT
$fontwidth = $this->wm_font_size - $this->wm_font_size / 4;
$fontheight = $this->wm_font_size;
//$this->wm_vrt_offset += $this->wm_font_size;
} else {
$fontwidth = imagefontwidth($this->wm_font_size);
$fontheight = imagefontheight($this->wm_font_size);
}
// Set base X and Y axis values
$x_axis = $this->wm_hor_offset + $this->wm_padding;
$y_axis = $this->wm_vrt_offset + $this->wm_padding;
// Set verticle alignment
if ($this->wm_use_drop_shadow == FALSE) {
$this->wm_shadow_distance = 0;
}
$this->wm_vrt_alignment = strtoupper(substr($this->wm_vrt_alignment, 0, 1));
$this->wm_hor_alignment = strtoupper(substr($this->wm_hor_alignment, 0, 1));
if (!$this->wm_use_truetype) {
switch ($this->wm_vrt_alignment) {
case "T":
break;
case "M":
$y_axis += $this->orig_height / 2 + $fontheight / 2;
break;
case "B":
$y_axis += $this->orig_height - $fontheight - $this->wm_shadow_distance - $fontheight / 2;
break;
}
$x_shad = $x_axis + $this->wm_shadow_distance;
$y_shad = $y_axis + $this->wm_shadow_distance;
// Set horizontal alignment
switch ($this->wm_hor_alignment) {
case "L":
break;
case "R":
//if ($this->wm_use_drop_shadow)
//$x_shad += ($this->orig_width - $fontwidth*strlen($this->wm_text));
//$x_axis += ($this->orig_width - $fontwidth*strlen($this->wm_text));
//AG_EDIT
if ($this->wm_use_drop_shadow) {
$x_shad += $this->orig_width - $fontwidth * mb_strlen($this->wm_text);
}
$x_axis += $this->orig_width - $fontwidth * mb_strlen($this->wm_text);
break;
case "C":
//if ($this->wm_use_drop_shadow)
//$x_shad += floor(($this->orig_width - $fontwidth*strlen($this->wm_text))/2);
//$x_axis += floor(($this->orig_width -$fontwidth*strlen($this->wm_text))/2);
//AG_EDIT
if ($this->wm_use_drop_shadow) {
$x_shad += floor(($this->orig_width - $fontwidth * mb_strlen($this->wm_text)) / 2);
}
$x_axis += floor(($this->orig_width - $fontwidth * mb_strlen($this->wm_text)) / 2);
break;
}
}
// Add the text to the source image
if ($this->wm_use_truetype) {
//Ширина прямоугольника с текстом
$XY = imageftbbox($this->wm_font_size, 0, $this->wm_font_path, $this->wm_text);
$Textwidth = $XY[2] - $XY[0];
//Проверка или прямоугольник не больше изображения с отступом от краем
if ($Textwidth + $this->wm_shadow_distance > $this->orig_width - $x_axis - $this->orig_width / 20) {
//Вычисляем максимально возможный размер шрифта через пропорцию
$this->wm_font_size = floor(($this->orig_width - $x_axis - $this->orig_width / 20) * $this->wm_font_size / ($Textwidth + $this->wm_shadow_distance));
//Узнаем ширину прямоугольника с текстом
$XY = imageftbbox($this->wm_font_size, 0, $this->wm_font_path, $this->wm_text);
$Textwidth = $XY[2] - $XY[0];
}
//Ширина создаваемого изображения с водяным знаком учитывая тень
$TW = $Textwidth + $this->wm_shadow_distance;
//Высота создаваемого изображения с водяным знаком + 50% от величины шрифта + учитывание тени
$TH = floor($this->wm_font_size + $this->wm_font_size / 2 + $this->wm_shadow_distance);
//Отступ от верхнего угла для imagettftext навно размеру шрифта + 20% - отступ тени
$TY = floor($this->wm_font_size + $this->wm_font_size / 7 - $this->wm_shadow_distance);
//После этих манипуляций текст не должен вылазить на пределы создаваемого изображения водяного знака
$TIMG = imagecreatetruecolor($TW, $TH);
imagealphablending($TIMG, TRUE);
imagesavealpha($TIMG, true);
//Цвет текста без прозрачности и цвет тени с прозрачность <> 40%
$txt_color = imagecolorallocatealpha($TIMG, $R1, $G1, $B1, 0);
$drp_color = imagecolorallocatealpha($TIMG, $R2, $G2, $B2, 50);
$BGcolor = imagecolorclosestalpha($TIMG, 255, 255, 255, 127);
imagefill($TIMG, 0, 0, $BGcolor);
imagealphablending($TIMG, TRUE);
//Наложение текстов на изображение
imagettftext($TIMG, $this->wm_font_size, 0, $this->wm_shadow_distance, $TY + $this->wm_shadow_distance, $drp_color, $this->wm_font_path, $this->wm_text);
imagettftext($TIMG, $this->wm_font_size, 0, 0, $TY, $txt_color, $this->wm_font_path, $this->wm_text);
//Проверка выравнивания водяного знака по оси Y
switch ($this->wm_vrt_alignment) {
case "T":
break;
case "M":
$y_axis += floor($this->orig_height / 2 - $TH / 2);
break;
case "B":
$y_axis += $this->orig_height - $TH;
break;
}
//Проверка выравнивания водяного знака по оси X
switch ($this->wm_hor_alignment) {
case "L":
$x_axis += $this->orig_width / 40;
break;
case "R":
$x_axis += floor($this->orig_width - $TW - $this->orig_width / 40);
break;
case "C":
$x_axis += floor(($this->orig_width - $TW) / 2);
break;
}
if ($this->wm_opacity > 0 && $this->wm_opacity < 100) {
$this->filter_opacity($TIMG, $this->wm_opacity);
}
imagecopy($src_img, $TIMG, $x_axis, $y_axis, 0, 0, $TW, $TH);
imagedestroy($TIMG);
} else {
if ($this->wm_use_drop_shadow) {
imagestring($src_img, $this->wm_font_size, $x_shad, $y_shad, $this->wm_text, $drp_color);
}
imagestring($src_img, $this->wm_font_size, $x_axis, $y_axis, $this->wm_text, $txt_color);
}
// Output the final image
if ($this->dynamic_output == TRUE) {
$this->image_display_gd($src_img);
} else {
$this->image_save_gd($src_img);
}
imagedestroy($src_img);
return TRUE;
}
/**
* An Old but Needed function for the Actual Days of PhP
* @source http://forums.devnetwork.net/viewtopic.php?f=1&t=103330#p553333
* @author RedMonkey
* @editor Claudio Santoro
*
* "@observation Sorry of this function need to be big. Is because the simpliest approaches found in internet"
* "doesn't work as well that these approach.."
* "i know oop need small functions, but sorry"
*
* @param resource $dst Destination Allocated Image
* @param resource $src Source Allocated Image
* @param int $dst_x Destination Position X
* @param int $dst_y Destination Position Y
* @param int $src_x Source Position X
* @param int $src_y Source Position Y
* @param int $w Width
* @param int $h Height
* @param int $pct Alpha Percent
* @return null
*/
private function image_copy_merge_with_alpha($dst, $src, $dst_x = 0, $dst_y = 0, $src_x = 0, $src_y = 0, $w = 0, $h = 0, $pct = 100)
{
/* yes divide */
$pct /= 100;
/* make sure opacity level is within range before going any further */
$pct = max(min(1, $pct), 0);
/* work out if we need to bother correcting for opacity */
if ($pct < 1) {
/* we need a copy of the original to work from, only copy the cropped */
/* area of src */
$src_copy = imagecreatetruecolor($w, $h);
/* attempt to maintain alpha levels, alpha blending must be *off* */
imagealphablending($src_copy, false);
imagesavealpha($src_copy, true);
imagecopy($src_copy, $src, 0, 0, $src_x, $src_y, $w, $h);
/* we need to know the max transparency of the image */
$max_t = 0;
for ($y = 0; $y < $h; $y++) {
for ($x = 0; $x < $w; $x++) {
$src_c = imagecolorat($src_copy, $x, $y);
$src_a = $src_c >> 24 & 0xff;
$max_t = $src_a > $max_t ? $src_a : $max_t;
}
}
/* src has no transparency? set it to use full alpha range */
$max_t = $max_t == 0 ? 127 : $max_t;
/* $max_t is now being reused as the correction factor to apply based */
/* on the original transparency range of src */
$max_t /= 127;
/* go back through the image adjusting alpha channel as required */
for ($y = 0; $y < $h; $y++) {
for ($x = 0; $x < $w; $x++) {
$src_c = imagecolorat($src, $src_x + $x, $src_y + $y);
$src_a = $src_c >> 24 & 0xff;
$src_r = $src_c >> 16 & 0xff;
$src_g = $src_c >> 8 & 0xff;
$src_b = $src_c & 0xff;
/* alpha channel compensation */
$src_a = ($src_a + 127 - 127 * $pct) * $max_t;
$src_a = $src_a > 127 ? 127 : (int) $src_a;
/* get and set this pixel's adjusted RGBA colour index */
$rgba = imagecolorallocatealpha($src_copy, $src_r, $src_g, $src_b, $src_a);
/* @method /imagecolorclosestalpha returns -1 for PHP versions prior */
/* to 5.1.3 when allocation failed */
if ($rgba === false || $rgba == -1) {
$rgba = imagecolorclosestalpha($src_copy, $src_r, $src_g, $src_b, $src_a);
}
imagesetpixel($src_copy, $x, $y, $rgba);
}
}
/* call image copy passing our alpha adjusted image as src */
imagecopy($dst, $src_copy, $dst_x, $dst_y, 0, 0, $w, $h);
/* cleanup, free memory */
imagedestroy($src_copy);
return null;
}
/* still here? no opacity adjustment required so pass straight through to */
/* @method /imagecopy rather than @method /imagecopymerge to retain alpha channels */
imagecopy($dst, $src, $dst_x, $dst_y, $src_x, $src_y, $w, $h);
return null;
}
function chinese_yzimg($str)
{
$fnt = ROOT_PATH . "inc/font.ttf";
if (WEB_LANG == 'gb2312') {
$str = gbk2utf8($str);
}
$c = 'red';
$x = 0;
$y = 0;
$size = 11;
$image = ROOT_PATH . 'images/default/chinese_yzimg.jpg';
if (!is_file($image)) {
die('背景图片不存在');
}
$img_array = getimagesize($image);
$font_array = ImageTTFBBox($size, 0, $fnt, $str);
$font_wight = intval($font_array[2] - $font_array[0]);
$font_height = intval($font_array[3] - $font_array[5]);
$x || ($x = intval(($img_array[0] - $font_wight) / 2));
$y || ($y = intval($img_array[1] / 2 + $font_height / 2));
$im = imagecreatefromjpeg($image);
if ($c == 'blue') {
$color = imagecolorclosestalpha($im, 00, 00, 255, 20);
$color2 = imagecolorclosestalpha($im, 00, 00, 00, 98);
imagettftext($im, $size, 0, $x + 2, $y + 2, $color2, $fnt, $str);
} elseif ($c == 'white') {
$color = imagecolorclosestalpha($im, 255, 255, 255, 20);
$color2 = imagecolorclosestalpha($im, 00, 00, 00, 99);
imagettftext($im, $size, 0, $x + 2, $y + 2, $color2, $fnt, $str);
} elseif ($c == 'red') {
$color = imagecolorclosestalpha($im, 255, 00, 00, 20);
$color2 = imagecolorclosestalpha($im, 255, 255, 255, 20);
imagettftext($im, $size, 0, $x + 2, $y + 2, $color2, $fnt, $str);
} else {
$color = imagecolorclosestalpha($im, 00, 00, 00, 20);
$color2 = imagecolorclosestalpha($im, 255, 255, 255, 40);
imagettftext($im, $size, 0, $x + 2, $y + 2, $color2, $fnt, $str);
}
imagettftext($im, $size, 0, $x, $y, $color, $fnt, $str);
ImageJPEG($im);
ImageDestroy($im);
}
public function closest($rgb = '')
{
if (!is_string($rgb)) {
Error::set(lang('Error', 'stringParameter', '1.(rgb)'));
return false;
}
$rgb = explode('|', $rgb);
$red = isset($rgb[0]) ? $rgb[0] : 0;
$green = isset($rgb[1]) ? $rgb[1] : 0;
$blue = isset($rgb[2]) ? $rgb[2] : 0;
$alpha = isset($rgb[3]) ? $rgb[3] : 0;
return imagecolorclosestalpha($this->canvas, $red, $green, $blue, $alpha);
}
function WatermarkImage(&$obj, $Params = array())
{
$file = $Params['file'];
if (!$obj || empty($file) || !file_exists($file) || !is_file($file) || !function_exists("gd_info")) {
return false;
}
$arFile = array("ext" => GetFileExtension($file));
$Params["width"] = intval(@imagesx($obj));
$Params["height"] = intval(@imagesy($obj));
$Params["coefficient"] = floatval($Params["coefficient"]);
if (!isset($Params["alpha_level"])) {
$Params["alpha_level"] = 100;
}
$Params["alpha_level"] = intval($Params["alpha_level"]) / 100;
$wmWidth = round($Params["width"] * $Params["coefficient"]);
$wmHeight = round($Params["height"] * $Params["coefficient"]);
$arFileSizeTmp = CFile::GetImageSize($file);
if (!in_array($arFileSizeTmp[2], array(IMAGETYPE_PNG, IMAGETYPE_JPEG, IMAGETYPE_GIF, IMAGETYPE_BMP))) {
return false;
}
if ($Params["fill"] == 'resize') {
$file_obj_1 = CFile::CreateImage($file, $arFileSizeTmp[2]);
$arFile["width"] = intval(imagesx($file_obj_1));
$arFile["height"] = intval(imagesy($file_obj_1));
if ($arFile["width"] > $wmWidth || $arFile["height"] > $wmHeight) {
$file_1 = $file . '_new.tmp';
CFile::ResizeImageFile($file, $file_1, array('width' => $wmWidth, 'height' => $wmHeight));
$file_obj = CFile::CreateImage($file_1, $arFileSizeTmp[2]);
@imagedestroy($file_obj_1);
} else {
$file_obj = $file_obj_1;
}
} else {
$file_obj = CFile::CreateImage($file, $arFileSizeTmp[2]);
if ($Params["fill"] == 'repeat') {
$Params["position"] = array('x' => 'top', 'y' => 'left');
}
}
if (!$file_obj) {
return false;
}
$arFile["width"] = intval(@imagesx($file_obj));
$arFile["height"] = intval(@imagesy($file_obj));
$wm_pos = array("x" => 2, "y" => 2, "width" => $arFile["width"], "height" => $arFile["height"]);
if ($Params["position"]['y'] == 'center') {
$wm_pos["y"] = intval(($Params["height"] - $wm_pos["height"]) / 2);
} elseif ($Params["position"]['y'] == 'bottom') {
$wm_pos["y"] = intval($Params["height"] - $wm_pos["height"]);
}
if ($Params["position"]['x'] == 'center') {
$wm_pos["x"] = intval(($Params["width"] - $wm_pos["width"]) / 2);
} elseif ($Params["position"]['x'] == 'right') {
$wm_pos["x"] = intval($Params["width"] - $wm_pos["width"]);
}
if ($wm_pos["y"] < 2) {
$wm_pos["y"] = 2;
}
if ($wm_pos["x"] < 2) {
$wm_pos["x"] = 2;
}
for ($y = 0; $y < $arFile["height"]; $y++) {
for ($x = 0; $x < $arFile["width"]; $x++) {
$watermark_y = $wm_pos["y"] + $y;
while (true) {
$watermark_x = $wm_pos["x"] + $x;
while (true) {
$return_color = NULL;
$watermark_alpha = $Params["alpha_level"];
$main_rgb = imagecolorsforindex($obj, imagecolorat($obj, $watermark_x, $watermark_y));
$watermark_rbg = imagecolorsforindex($file_obj, imagecolorat($file_obj, $x, $y));
if ($watermark_rbg['alpha']) {
$watermark_alpha = round((127 - $watermark_rbg['alpha']) / 127, 2);
$watermark_alpha = $watermark_alpha * $Params["alpha_level"];
}
$res = array();
foreach (array('red', 'green', 'blue', 'alpha') as $k) {
$res[$k] = round($main_rgb[$k] * (1 - $watermark_alpha) + $watermark_rbg[$k] * $watermark_alpha);
}
$return_color = imagecolorexactalpha($obj, $res["red"], $res["green"], $res["blue"], $res["alpha"]);
if ($return_color == -1) {
$return_color = imagecolorallocatealpha($obj, $res["red"], $res["green"], $res["blue"], $res["alpha"]);
if ($return_color == -1) {
$return_color = imagecolorclosestalpha($obj, $res["red"], $res["green"], $res["blue"], $res["alpha"]);
}
}
imagesetpixel($obj, $watermark_x, $watermark_y, $return_color);
$watermark_x += $arFile["width"];
if ($Params["fill"] != 'repeat' || $watermark_x > $Params["width"]) {
break;
}
}
$watermark_y += $arFile["height"];
if ($Params["fill"] != 'repeat' || $watermark_y > $Params["height"]) {
break;
}
}
}
}
@imagedestroy($file_obj);
return true;
}
public function blend($baseImage, $topImage, $mode)
{
$baseIsTrueColor = imageistruecolor($baseImage);
$topIsTrueColor = imageistruecolor($topImage);
$baseWidth = imagesx($baseImage);
$baseHeight = imagesy($baseImage);
$topWidth = imagesx($topImage);
$topHeight = imagesy($topImage);
$destX = ($baseWidth - $topWidth) / 2;
$destY = ($baseHeight - $topHeight) / 2;
for ($x = 0; $x < $topWidth; ++$x) {
for ($y = 0; $y < $topHeight; ++$y) {
$color = imagecolorat($baseImage, $x + $destX, $y + $destY);
if ($baseIsTrueColor) {
$baseColor = array('red' => $color >> 16 & 0xff, 'green' => $color >> 8 & 0xff, 'blue' => $color & 0xff, 'alpha' => ($color & 0x7f000000) >> 24);
} else {
$baseColor = imagecolorsforindex($baseImage, $color);
}
$color = imagecolorat($topImage, $x, $y);
if ($topIsTrueColor) {
$topColor = array('red' => $color >> 16 & 0xff, 'green' => $color >> 8 & 0xff, 'blue' => $color & 0xff, 'alpha' => ($color & 0x7f000000) >> 24);
} else {
$topColor = imagecolorsforindex($topImage, $color);
}
switch ($mode) {
case 'dissolve':
$topOpacityPercent = round($topColor['alpha'] / 127 * 100);
$randomPercent = rand(1, 100);
if ($randomPercent <= $topOpacityPercent) {
$destColorAlpha = 127.0;
} else {
$destColorAlpha = 0.0;
}
$destColor = array('red' => intval($topColor['red']), 'green' => intval($topColor['green']), 'blue' => intval($topColor['blue']), 'alpha' => intval($destColorAlpha));
break;
case 'darkerColor':
$baseColorHsl = $this->rgbToHsl($baseColor['red'], $baseColor['green'], $baseColor['green']);
$topColorHsl = $this->rgbToHsl($topColor['red'], $topColor['green'], $topColor['blue']);
if ($baseColorHsl['lightness'] < $topColorHsl['lightness']) {
$destColor = array('red' => intval($baseColor['red']), 'green' => intval($baseColor['green']), 'blue' => intval($baseColor['blue']), 'alpha' => intval($baseColor['alpha']));
} else {
$destColor = array('red' => intval($topColor['red']), 'green' => intval($topColor['green']), 'blue' => intval($topColor['blue']), 'alpha' => intval($topColor['alpha']));
}
break;
case 'darken':
$destColor = array('red' => intval(min($baseColor['red'], $topColor['red'])), 'green' => intval(min($baseColor['green'], $topColor['green'])), 'blue' => intval(min($baseColor['blue'], $topColor['blue'])), 'alpha' => intval($topColor['alpha']));
break;
default:
case 'multiply':
$destColor = array('red' => intval($baseColor['red'] * ($topColor['red'] / 255.0)), 'green' => intval($baseColor['green'] * ($topColor['green'] / 255.0)), 'blue' => intval($baseColor['blue'] * ($topColor['blue'] / 255.0)), 'alpha' => intval($topColor['alpha']));
break;
case 'colorBurn':
$destColor = array('red' => intval($baseColor['red'] * ($topColor['red'] / 255.0)), 'green' => intval($baseColor['green'] * ($topColor['green'] / 255.0)), 'blue' => intval($baseColor['blue'] * ($topColor['blue'] / 255.0)), 'alpha' => intval($topColor['alpha']));
break;
case 'linearBurn':
$destColor = array('red' => intval($baseColor['red'] + $topColor['red'] - 255.0), 'green' => intval($baseColor['green'] + $topColor['green'] - 255.0), 'blue' => intval($baseColor['blue'] + $topColor['blue'] - 255.0), 'alpha' => intval($topColor['alpha']));
break;
case 'lighterColor':
$baseColorHsl = $this->rgbToHsl($baseColor['red'], $baseColor['green'], $baseColor['green']);
$topColorHsl = $this->rgbToHsl($topColor['red'], $topColor['green'], $topColor['blue']);
if ($baseColorHsl['lightness'] > $topColorHsl['lightness']) {
$destColor = array('red' => intval($baseColor['red']), 'green' => intval($baseColor['green']), 'blue' => intval($baseColor['blue']), 'alpha' => intval($baseColor['alpha']));
} else {
$destColor = array('red' => intval($topColor['red']), 'green' => intval($topColor['green']), 'blue' => intval($topColor['blue']), 'alpha' => intval($topColor['alpha']));
}
break;
case 'lighten':
$destColor = array('red' => intval(max($baseColor['red'], $topColor['red'])), 'green' => intval(max($baseColor['green'], $topColor['green'])), 'blue' => intval(max($baseColor['blue'], $topColor['blue'])), 'alpha' => intval($topColor['alpha']));
break;
case 'screen':
$destColor = array('red' => intval(round($baseColor['red'] + (255.0 - $baseColor['red']) / 100 * ($topColor['red'] / 255.0 * 100))), 'green' => intval(round($baseColor['green'] + (255.0 - $baseColor['green']) / 100 * ($topColor['green'] / 255.0 * 100))), 'blue' => intval(round($baseColor['blue'] + (255.0 - $baseColor['blue']) / 100 * ($topColor['blue'] / 255.0 * 100))), 'alpha' => intval($topColor['alpha']));
break;
case 'colorDodge':
$destColor = array('red' => intval($baseColor['red'] + $topColor['red'] > 255.0 ? 255.0 : $baseColor['red']), 'green' => intval($baseColor['green'] + $topColor['green'] > 255.0 ? 255.0 : $baseColor['green']), 'blue' => intval($baseColor['blue'] + $topColor['blue'] > 255.0 ? 255.0 : $baseColor['blue']), 'alpha' => intval($topColor['alpha']));
break;
case 'linearDodge':
$destColor = array('red' => intval($baseColor['red'] + $topColor['red'] > 255.0 ? 255.0 : $baseColor['red'] + $topColor['red']), 'green' => intval($baseColor['green'] + $topColor['green'] > 255.0 ? 255.0 : $baseColor['green'] + $topColor['red']), 'blue' => intval($baseColor['blue'] + $topColor['blue'] > 255.0 ? 255.0 : $baseColor['blue'] + $topColor['blue']), 'alpha' => intval($topColor['alpha']));
break;
case 'overlay':
$destColor = array('red' => intval($baseColor['red'] > 127.5 ? $topColor['red'] * ((255.0 - $baseColor['red']) / 127.5) + ($baseColor['red'] - (255.0 - $baseColor['red'])) : $topColor['red'] * ($baseColor['red'] / 127.5)), 'green' => intval($baseColor['green'] > 127.5 ? $topColor['green'] * ((255.0 - $baseColor['green']) / 127.5) + ($baseColor['green'] - (255.0 - $baseColor['green'])) : $topColor['green'] * ($baseColor['green'] / 127.5)), 'blue' => intval($baseColor['blue'] > 127.5 ? $topColor['blue'] * ((255.0 - $baseColor['blue']) / 127.5) + ($baseColor['blue'] - (255.0 - $baseColor['blue'])) : $topColor['blue'] * ($baseColor['blue'] / 127.5)), 'alpha' => intval($topColor['alpha']));
break;
case 'softLight':
$destColor = array('red' => intval(round($topColor['red'] / 255.0 < 0.5 ? (2 * ($baseColor['red'] / 255.0) * ($topColor['red'] / 255.0) + $baseColor['red'] / 255.0 * ($baseColor['red'] / 255.0) * (1 - 2 * ($topColor['red'] / 255.0))) * 255.0 : (2 * ($baseColor['red'] / 255.0) * (1 - $topColor['red'] / 255.0) + sqrt($baseColor['red'] / 255.0) * (2 * ($topColor['red'] / 255.0) - 1)) * 255.0)), 'green' => intval(round($topColor['green'] / 255.0 < 0.5 ? (2 * ($baseColor['green'] / 255.0) * ($topColor['green'] / 255.0) + $baseColor['green'] / 255.0 * ($baseColor['green'] / 255.0) * (1 - 2 * ($topColor['green'] / 255.0))) * 255.0 : (2 * ($baseColor['green'] / 255.0) * (1 - $topColor['green'] / 255.0) + sqrt($baseColor['green'] / 255.0) * (2 * ($topColor['green'] / 255.0) - 1)) * 255.0)), 'blue' => intval(round($topColor['blue'] / 255.0 < 0.5 ? (2 * ($baseColor['blue'] / 255.0) * ($topColor['blue'] / 255.0) + $baseColor['blue'] / 255.0 * ($baseColor['blue'] / 255.0) * (1 - 2 * ($topColor['blue'] / 255.0))) * 255.0 : (2 * ($baseColor['blue'] / 255.0) * (1 - $topColor['blue'] / 255.0) + sqrt($baseColor['blue'] / 255.0) * (2 * ($topColor['blue'] / 255.0) - 1)) * 255.0)), 'alpha' => intval($topColor['alpha']));
break;
case 'hardLight':
$destColor = array('red' => intval(round($topColor['red'] > 127.5 ? $baseColor['red'] * ((255 - $topColor['red']) / 127.5) + ($topColor['red'] - (255 - $topColor['red'])) : $baseColor['red'] * ($topColor['red'] / 127.5))), 'green' => intval(round($topColor['green'] > 127.5 ? $baseColor['green'] * ((255 - $topColor['green']) / 127.5) + ($topColor['green'] - (255 - $topColor['green'])) : $baseColor['green'] * ($topColor['green'] / 127.5))), 'blue' => intval(round($topColor['blue'] > 127.5 ? $baseColor['blue'] * ((255 - $topColor['blue']) / 127.5) + ($topColor['blue'] - (255 - $topColor['blue'])) : $baseColor['blue'] * ($topColor['blue'] / 127.5))), 'alpha' => intval($topColor['alpha']));
break;
case 'vividLight':
// hotfix for division by zero bug
foreach ($baseColor as $baseKey => $base) {
if ($baseKey != 'alpha') {
if ($base <= 0) {
$baseColor[$baseKey] = 1.0;
} elseif ($base >= 255.0) {
$baseColor[$baseKey] = 254.0;
}
}
}
foreach ($topColor as $topKey => $top) {
if ($topKey != 'alpha') {
if ($top <= 0) {
$topColor[$topKey] = 1.0;
} elseif ($top >= 255.0) {
$topColor[$topKey] = 254.0;
}
}
}
$destColor = array('red' => intval(round($topColor['red'] / 255 <= 0.5 ? (1 - (1 - $baseColor['red'] / 255.0) / (2 * ($topColor['red'] / 255.0))) * 255.0 : $baseColor['red'] / 255.0 / (2 * (1 - $topColor['red'] / 255.0)) * 255.0)), 'green' => intval(round($topColor['green'] / 255 <= 0.5 ? (1 - (1 - $baseColor['green'] / 255.0) / (2 * ($topColor['green'] / 255.0))) * 255.0 : $baseColor['green'] / 255.0 / (2 * (1 - $topColor['green'] / 255.0)) * 255.0)), 'blue' => intval(round($topColor['blue'] / 255 <= 0.5 ? (1 - (1 - $baseColor['blue'] / 255.0) / (2 * ($topColor['blue'] / 255.0))) * 255.0 : $baseColor['blue'] / 255.0 / (2 * (1 - $topColor['blue'] / 255.0)) * 255.0)), 'alpha' => intval($topColor['alpha']));
break;
case 'linearLight':
$destColor = array('red' => intval(round(($baseColor['red'] / 255 + 2 * ($topColor['red'] / 255) - 1) * 255.0)), 'green' => intval(round(($baseColor['green'] / 255 + 2 * ($topColor['green'] / 255) - 1) * 255.0)), 'blue' => intval(round(($baseColor['blue'] / 255 + 2 * ($topColor['blue'] / 255) - 1) * 255.0)), 'alpha' => intval($topColor['alpha']));
break;
case 'pinLight':
$destColor = array('red' => intval(round($baseColor['red'] / 255.0 < 2 * ($topColor['red'] / 255.0) - 1 ? (2 * ($topColor['red'] / 255.0) - 1) * 255.0 : 2 * ($topColor['red'] / 255.0) - 1 < $baseColor['red'] / 255.0 && $baseColor['red'] / 255.0 < 2 * ($topColor['red'] / 255.0) ? $baseColor['red'] : 2 * ($topColor['red'] / 255.0) * 255.0)), 'green' => intval(round($baseColor['green'] / 255.0 < 2 * ($topColor['green'] / 255.0) - 1 ? (2 * ($topColor['green'] / 255.0) - 1) * 255.0 : 2 * ($topColor['green'] / 255.0) - 1 < $baseColor['green'] / 255.0 && $baseColor['green'] / 255.0 < 2 * ($topColor['green'] / 255.0) ? $baseColor['green'] : 2 * ($topColor['green'] / 255.0) * 255.0)), 'blue' => intval(round($baseColor['blue'] / 255.0 < 2 * ($topColor['blue'] / 255.0) - 1 ? (2 * ($topColor['blue'] / 255.0) - 1) * 255.0 : 2 * ($topColor['blue'] / 255.0) - 1 < $baseColor['blue'] / 255.0 && $baseColor['blue'] / 255.0 < 2 * ($topColor['blue'] / 255.0) ? $baseColor['blue'] : 2 * ($topColor['blue'] / 255.0) * 255.0)), 'alpha' => intval($topColor['alpha']));
break;
case 'hardMix':
$destColor = array('red' => intval($baseColor['red'] + $topColor['red'] >= 255.0 ? 255.0 : 0.0), 'green' => intval($baseColor['green'] + $topColor['green'] >= 255.0 ? 255.0 : 0.0), 'blue' => intval($baseColor['blue'] + $topColor['blue'] >= 255.0 ? 255.0 : 0.0), 'alpha' => intval($topColor['alpha']));
break;
case 'difference':
$destColor = array('red' => intval($topColor['red'] - $baseColor['red'] < 0 ? ($topColor['red'] - $baseColor['red']) * -1 : $topColor['red'] - $baseColor['red']), 'green' => intval($topColor['green'] - $baseColor['green'] < 0 ? ($topColor['green'] - $baseColor['green']) * -1 : $topColor['green'] - $baseColor['green']), 'blue' => intval($topColor['blue'] - $baseColor['blue'] < 0 ? ($topColor['blue'] - $baseColor['blue']) * -1 : $topColor['blue'] - $baseColor['blue']), 'alpha' => intval($topColor['alpha']));
break;
case 'exclusion':
$destColor = array('red' => intval(round((0.5 - 2.0 * ($baseColor['red'] / 255.0 - 0.5) * ($topColor['red'] / 255.0 - 0.5)) * 255.0)), 'green' => intval(round((0.5 - 2.0 * ($baseColor['green'] / 255.0 - 0.5) * ($topColor['green'] / 255.0 - 0.5)) * 255.0)), 'blue' => intval(round((0.5 - 2.0 * ($baseColor['blue'] / 255.0 - 0.5) * ($topColor['blue'] / 255.0 - 0.5)) * 255.0)), 'alpha' => intval($topColor['alpha']));
break;
case 'subtract':
$destColor = array('red' => intval($baseColor['red'] - $topColor['red'] < 0.0 ? 0.0 : $baseColor['red'] - $topColor['red']), 'green' => intval($baseColor['green'] - $topColor['green'] < 0.0 ? 0.0 : $baseColor['green'] - $topColor['green']), 'blue' => intval($baseColor['blue'] - $topColor['blue'] < 0.0 ? 0.0 : $baseColor['blue'] - $topColor['blue']), 'alpha' => intval($topColor['alpha']));
break;
case 'divide':
// hotfix for division by zero bug
foreach ($baseColor as $baseKey => $base) {
if ($baseKey != 'alpha') {
if ($base <= 0) {
$baseColor[$baseKey] = 1;
}
}
}
foreach ($topColor as $topKey => $top) {
if ($topKey != 'alpha') {
if ($top <= 0) {
$topColor[$topKey] = 1;
}
}
}
$destColor = array('red' => intval($baseColor['red'] / $topColor['red'] * 255.0 > 255.0 ? 255.0 : $baseColor['red'] / $topColor['red'] * 255.0), 'green' => intval($baseColor['green'] / $topColor['green'] * 255.0 > 255.0 ? 255.0 : $baseColor['green'] / $topColor['green'] * 255.0), 'blue' => intval($baseColor['blue'] / $topColor['blue'] * 255.0 > 255.0 ? 255.0 : $baseColor['blue'] / $topColor['blue'] * 255.0), 'alpha' => intval($topColor['alpha']));
break;
case 'hue':
$baseColorHsl = $this->rgbToHsl($baseColor['red'], $baseColor['green'], $baseColor['green']);
$topColorHsl = $this->rgbToHsl($topColor['red'], $topColor['green'], $topColor['blue']);
$destColorRgb = $this->hslToRgb($topColorHsl['hue'], $baseColorHsl['saturation'], $baseColorHsl['lightness']);
$destColor = array('red' => $destColorRgb['red'], 'green' => $destColorRgb['green'], 'blue' => $destColorRgb['blue'], 'alpha' => $topColor['alpha']);
break;
case 'saturation':
$baseColorHsl = $this->rgbToHsl($baseColor['red'], $baseColor['green'], $baseColor['green']);
$topColorHsl = $this->rgbToHsl($topColor['red'], $topColor['green'], $topColor['blue']);
$destColorRgb = $this->hslToRgb($baseColorHsl['hue'], $topColorHsl['saturation'], $baseColorHsl['lightness']);
$destColor = array('red' => $destColorRgb['red'], 'green' => $destColorRgb['green'], 'blue' => $destColorRgb['blue'], 'alpha' => $topColor['alpha']);
break;
case 'color':
$baseColorHsl = $this->rgbToHsl($baseColor['red'], $baseColor['green'], $baseColor['green']);
$topColorHsl = $this->rgbToHsl($topColor['red'], $topColor['green'], $topColor['blue']);
$destColorRgb = $this->hslToRgb($topColorHsl['hue'], $topColorHsl['saturation'], $baseColorHsl['lightness']);
$destColor = array('red' => $destColorRgb['red'], 'green' => $destColorRgb['green'], 'blue' => $destColorRgb['blue'], 'alpha' => $topColor['alpha']);
break;
case 'luminosity':
$baseColorHsl = $this->rgbToHsl($baseColor['red'], $baseColor['green'], $baseColor['green']);
$topColorHsl = $this->rgbToHsl($topColor['red'], $topColor['green'], $topColor['blue']);
$destColorRgb = $this->hslToRgb($baseColorHsl['hue'], $baseColorHsl['saturation'], $topColorHsl['lightness']);
$destColor = array('red' => $destColorRgb['red'], 'green' => $destColorRgb['green'], 'blue' => $destColorRgb['blue'], 'alpha' => $topColor['alpha']);
break;
}
$colorIndex = imagecolorallocatealpha($baseImage, $destColor['red'], $destColor['green'], $destColor['blue'], $destColor['alpha']);
if ($colorIndex === false) {
$colorIndex = imagecolorclosestalpha($baseImage, $destColor['red'], $destColor['green'], $destColor['blue'], $destColor['alpha']);
}
imagesetpixel($baseImage, $x + $destX, $y + $destY, $colorIndex);
}
}
return $baseImage;
}
print_r(imagecolorsforindex($im, $c));
// with alpha
$im = imagecreatetruecolor(5, 5);
$c = imagecolorclosestalpha($im, 255, 0, 255, 100);
printf("%X\n", $c);
imagedestroy($im);
$im = imagecreate(5, 5);
$c = imagecolorclosestalpha($im, 255, 0, 255, 100);
print_r(imagecolorsforindex($im, $c));
imagedestroy($im);
$im = imagecreate(5, 5);
imagecolorallocatealpha($im, 255, 0, 255, 1);
$c = imagecolorclosestalpha($im, 255, 0, 255, 1);
print_r(imagecolorsforindex($im, $c));
imagedestroy($im);
$im = imagecreate(5, 5);
for ($i = 0; $i < 255; $i++) {
imagecolorresolvealpha($im, $i, 0, 0, 1);
}
$c = imagecolorclosestalpha($im, 255, 0, 0, 1);
print_r(imagecolorsforindex($im, $c));
$im = imagecreate(5, 5);
for ($i = 0; $i < 256; $i++) {
if ($i == 246) {
imagecolorallocatealpha($im, $i, 10, 10, 1);
} else {
imagecolorallocatealpha($im, $i, 0, 0, 100);
}
}
$c = imagecolorclosestalpha($im, 255, 10, 10, 1);
print_r(imagecolorsforindex($im, $c));
/**
* 添加文字
* 参数格式
* array("txt" => $txt, "opacity" => $opacity,
"gravity" => $gravity, "font" => array("name" => $font['name'], "size" => $font["size"],
"weight" => $font["weight"], "color" => $font["color"]))
* @param array $args
*/
private function _annotate($args)
{
$font = $args['font'];
$rgb = $this->toRGB($font['color']);
$color = imagecolorclosestalpha($this->_image, $rgb['r'], $rgb['g'], $rgb['b'], (1 - $args['opacity']) * 100);
//设置位置
$fontSize = imagettfbbox($font['size'], 0, $font['name'], $args['txt']);
$textWidth = $fontSize[4];
//取出宽
$textHeight = abs($fontSize[7]);
//取出高
switch ($args['gravity']) {
case SAE_NorthWest:
$x = 0;
$y = $textHeight;
break;
case SAE_North:
$x = ($this->_width - $textWidth) / 2;
$y = $textHeight;
break;
case SAE_NorthEast:
$x = $this->_width - $textWidth;
$y = $textHeight;
break;
case SAE_West:
$x = 0;
$y = ($this->_height - $textHeight) / 2;
break;
case SAE_East:
$x = $this->_width - $textWidth;
$y = ($this->_height - $textHeight) / 2;
break;
case SAE_SouthWest:
$x = 0;
$y = $this->_height - $textHeight;
break;
case SAE_South:
$x = ($this->_width - $textWidth) / 2;
$y = $this->_height - $textHeight;
break;
case SAE_SouthEast:
$x = $this->_width - $textWidth;
$y = $this->_height - $textHeight;
break;
case SAE_Static:
default:
$x = ($this->_width - $textWidth) / 2;
$y = ($this->_height - $textHeight) / 2;
break;
}
imagettftext($this->_image, $font['size'], 0, $x, $y, $color, $font['name'], $args['txt']);
}
$str || ($str = "ÇëÊäÈë×ÖÌå!");
$cnvert = new Chinese("GB2312", "UTF8", $str, dirname(__FILE__) . "/../inc/" . "gbkcode/");
$str = $cnvert->ConvertIT();
$size || ($size = 30);
$img_array = getimagesize($image);
$font_array = ImageTTFBBox($size, 0, $fnt, $str);
$font_wight = intval($font_array[2] - $font_array[0]);
$font_height = intval($font_array[3] - $font_array[5]);
$x || ($x = intval(($img_array[0] - $font_wight) / 2));
$y || ($y = intval($img_array[1] / 2 + $font_height / 2));
$im = imagecreatefromjpeg($image);
if ($c == 'blue') {
$color = imagecolorclosestalpha($im, 00, 00, 255, 20);
$color2 = imagecolorclosestalpha($im, 00, 00, 00, 98);
imagettftext($im, $size, 0, $x + 2, $y + 2, $color2, $fnt, $str);
} elseif ($c == 'white') {
$color = imagecolorclosestalpha($im, 255, 255, 255, 20);
$color2 = imagecolorclosestalpha($im, 00, 00, 00, 99);
imagettftext($im, $size, 0, $x + 2, $y + 2, $color2, $fnt, $str);
} elseif ($c == 'red') {
$color = imagecolorclosestalpha($im, 255, 00, 00, 20);
$color2 = imagecolorclosestalpha($im, 255, 255, 255, 20);
imagettftext($im, $size, 0, $x + 2, $y + 2, $color2, $fnt, $str);
} else {
$color = imagecolorclosestalpha($im, 00, 00, 00, 20);
$color2 = imagecolorclosestalpha($im, 255, 255, 255, 40);
imagettftext($im, $size, 0, $x + 2, $y + 2, $color2, $fnt, $str);
}
imagettftext($im, $size, 0, $x, $y, $color, $fnt, $str);
ImageJPEG($im);
ImageDestroy($im);
