/**
* @param array $options
* 'watermark' => waImage|string $watermark
* 'opacity' => float|int 0..1
* 'align' => self::ALIGN_* const
* 'font_file' => null|string If null - will be used some default font. Note: use when watermark option is text
* 'font_size' => float Size of font. Note: use when watermark option is text
* 'font_color' => string Hex-formatted of color (without #). Note: use when watermark option is text
* 'text_orientation' => self::ORIENTATION_* const. Note: use when watermark option is text
* @throws waException
* @return mixed
*/
protected function _watermark($options)
{
$watermark = false;
$opacity = 0.5;
$align = self::ALIGN_BOTTOM_RIGHT;
$font_file = null;
$font_size = 12;
$font_color = '888888';
$text_orientation = self::ORIENTATION_HORIZONTAL;
extract($options, EXTR_IF_EXISTS);
$opacity = min(max($opacity, 0), 1);
imagealphablending($this->image, true);
if ($watermark instanceof waImage) {
$type = $watermark->type;
$gd_watermark = $this->createGDImageResourse($watermark->file, $type);
$width = ifset($options['width'], $watermark->width);
$height = ifset($options['height'], $watermark->height);
$offset = $this->calcWatermarkOffset($width, $height, $align);
if ($width != $watermark->width || $height != $watermark->height) {
$watermark_resized = $this->_create($width, $height);
if (function_exists('imagecopyresampled')) {
imagecopyresampled($watermark_resized, $gd_watermark, 0, 0, 0, 0, $width, $height, $watermark->width, $watermark->height);
} else {
imagecopyresized($watermark_resized, $gd_watermark, 0, 0, 0, 0, $width, $height, $watermark->width, $watermark->height);
}
imagedestroy($gd_watermark);
$gd_watermark = $watermark_resized;
}
imagecopymerge_alpha($this->image, $gd_watermark, $offset[0], $offset[1], 0, 0, $width, $height, $opacity * 100);
imagedestroy($gd_watermark);
} else {
$text = (string) $watermark;
if (!$text) {
return;
}
$margin = round($font_size / 3.6);
$font_color = array('r' => '0x' . substr($font_color, 0, 2), 'g' => '0x' . substr($font_color, 2, 2), 'b' => '0x' . substr($font_color, 4, 2), 'a' => floor((1 - $opacity) * 127));
if ($align == self::ALIGN_CENTER) {
$rotation = (int) ifempty($options['rotation'], 0);
$text_orientation = self::ORIENTATION_HORIZONTAL;
} else {
if ($text_orientation == self::ORIENTATION_VERTICAL) {
$rotation = 90;
} else {
$rotation = 0;
}
}
if (!empty($font_file) && file_exists($font_file)) {
$gd_info = gd_info();
$gd_version = preg_replace('/[^0-9\\.]/', '', $gd_info['GD Version']);
if (!empty($gd_info['FreeType Support']) && version_compare($gd_version, '2.0.1', '>=')) {
// Free Type
$free_type = true;
} else {
// True Type
$free_type = false;
// GD1 use pixels, GD2 use points
if (version_compare($gd_version, '2.0', '<')) {
$font_size = 24 * $font_size / 18;
// 24px = 18pt
}
}
if ($free_type) {
$metrics = imageftbbox($font_size, 0, $font_file, $text);
} else {
$metrics = imagettfbbox($font_size, 0, $font_file, $text);
}
if ($metrics) {
$width = $metrics[2] - $metrics[0];
$height = $metrics[1] - $metrics[7];
if ($text_orientation == self::ORIENTATION_VERTICAL) {
list($width, $height) = array($height, $width);
}
$offset = $this->calcWatermarkOffset($width, $height, $align, $margin);
$offset = $this->watermarkOffsetFix($offset, $width, $height, $align, $text_orientation, $align == self::ALIGN_CENTER ? $rotation : 0);
$color = imagecolorallocatealpha($this->image, $font_color['r'], $font_color['g'], $font_color['b'], $font_color['a']);
if ($free_type) {
imagefttext($this->image, $font_size, $rotation, $offset[0], $offset[1], $color, $font_file, $text);
} else {
imagettftext($this->image, $font_size, $rotation, $offset[0], $offset[1], $color, $font_file, $text);
}
} else {
throw new waException(_ws("Can't read font file {$font_file}"));
}
} else {
$font = floor(5 * $font_size / 12);
if ($font < 1) {
$font = 1;
} else {
if ($font > 5) {
$font = 5;
}
}
$width = imagefontwidth($font) * strlen($text);
$height = imagefontheight($font);
if ($text_orientation == self::ORIENTATION_VERTICAL) {
list($width, $height) = array($height, $width);
}
$offset = $this->calcWatermarkOffset($width, $height, $align, $margin);
if ($rotation != 0) {
imagestring_rotate($this->image, $font, $rotation, $offset[0], $offset[1], $text, $font_color['r'], $font_color['g'], $font_color['b'], $font_color['a']);
} else {
$color = imagecolorallocatealpha($this->image, $font_color['r'], $font_color['g'], $font_color['b'], $font_color['a']);
imagestring($this->image, $font, $offset[0], $offset[1], $text, $color);
}
}
}
}
/**
* @param array $options
* 'watermark' => waImage|string $watermark
* 'opacity' => float|int 0..1
* 'align' => self::ALIGN_* const
* 'font_file' => null|string If null - will be used some default font. Note: use when watermark option is text
* 'font_size' => float Size of font. Note: use when watermark option is text
* 'font_color' => string Hex-formatted of color (without #). Note: use when watermark option is text
* 'text_orientation' => self::ORIENTATION_* const. Note: use when watermark option is text
* @return mixed
*/
protected function _watermark($options)
{
// export options to php-vars
foreach ($options as $name => $value) {
${$name} = $value;
}
$opacity = min(max($opacity, 0), 1);
imagealphablending($this->image, true);
if ($watermark instanceof waImage) {
$width = $watermark->width;
$height = $watermark->height;
$offset = $this->calcWatermarkOffset($width, $height, $align);
$type = $watermark->type;
$watermark = $this->createGDImageResourse($watermark->file, $type);
imagecopymerge_alpha($this->image, $watermark, $offset[0], $offset[1], 0, 0, $width, $height, $opacity * 100);
imagedestroy($watermark);
} else {
$text = (string) $watermark;
if (!$text) {
return;
}
$font_color = array('r' => '0x' . substr($font_color, 0, 2), 'g' => '0x' . substr($font_color, 2, 2), 'b' => '0x' . substr($font_color, 4, 2), 'a' => floor((1 - $opacity) * 127));
if ($font_file && file_exists($font_file)) {
$metrics = imagettfbbox($font_size, 0, $font_file, $text);
if ($metrics) {
$width = $metrics[2] - $metrics[0];
$height = $metrics[1] - $metrics[7];
if ($text_orientation == self::ORIENTATION_VERTICAL) {
list($width, $height) = array($height, $width);
}
$offset = $this->calcWatermarkOffset($width, $height, $align);
$offset = $this->watermarkOffsetFix($offset, $width, $height, $text_orientation);
$color = imagecolorallocatealpha($this->image, $font_color['r'], $font_color['g'], $font_color['b'], $font_color['a']);
imagettftext($this->image, $font_size, $text_orientation == self::ORIENTATION_VERTICAL ? 90 : 0, $offset[0], $offset[1], $color, $font_file, $text);
} else {
throw new waException(_ws("Can't read font file {$font_file}"));
}
} else {
$font = floor(5 * $font_size / 12);
if ($font < 1) {
$font = 1;
} else {
if ($font > 5) {
$font = 5;
}
}
$width = imagefontwidth($font) * strlen($text);
$height = imagefontheight($font);
if ($text_orientation == self::ORIENTATION_VERTICAL) {
list($width, $height) = array($height, $width);
}
$offset = $this->calcWatermarkOffset($width, $height, $align);
if ($text_orientation == self::ORIENTATION_VERTICAL) {
imagestring_rotate($this->image, $font, 90, $offset[0], $offset[1], $text, $font_color['r'], $font_color['g'], $font_color['b'], $font_color['a']);
} else {
$color = imagecolorallocatealpha($this->image, $font_color['r'], $font_color['g'], $font_color['b'], $font_color['a']);
imagestring($this->image, $font, $offset[0], $offset[1], $text, $color);
}
}
}
}
