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<?php
/*
* This file is part of the Imagine package.
*
* (c) Bulat Shakirzyanov <mallluhuct@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Imagine\Gmagick;
use Imagine\Driver\Info;
use Imagine\Driver\InfoProvider;
use Imagine\Exception\InvalidArgumentException;
use Imagine\Exception\NotSupportedException;
use Imagine\Exception\OutOfBoundsException;
use Imagine\Exception\RuntimeException;
use Imagine\Factory\ClassFactoryInterface;
use Imagine\Image\AbstractImage;
use Imagine\Image\BoxInterface;
use Imagine\Image\Fill\FillInterface;
use Imagine\Image\ImageInterface;
use Imagine\Image\Metadata\MetadataBag;
use Imagine\Image\Palette\Color\ColorInterface;
use Imagine\Image\Palette\PaletteInterface;
use Imagine\Image\Point;
use Imagine\Image\PointInterface;
use Imagine\Image\ProfileInterface;
/**
* Image implementation using the Gmagick PHP extension.
*/
final class Image extends AbstractImage implements InfoProvider
{
/**
* @var \Gmagick
*/
private $gmagick;
/**
* @var \Imagine\Gmagick\Layers|null
*/
private $layers;
/**
* @var \Imagine\Image\Palette\PaletteInterface
*/
private $palette;
/**
* @var array|null
*/
private static $colorspaceMapping = null;
/**
* Constructs a new Image instance.
*
* @param \Gmagick $gmagick
* @param \Imagine\Image\Palette\PaletteInterface $palette
* @param \Imagine\Image\Metadata\MetadataBag $metadata
*/
public function __construct(\Gmagick $gmagick, PaletteInterface $palette, MetadataBag $metadata)
{
$this->metadata = $metadata;
$this->gmagick = $gmagick;
$this->setColorspace($palette);
}
/**
* Destroys allocated gmagick resources.
*/
public function __destruct()
{
if ($this->gmagick instanceof \Gmagick) {
$this->gmagick->clear();
$this->gmagick->destroy();
}
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\AbstractImage::__clone()
*/
public function __clone()
{
parent::__clone();
$this->gmagick = clone $this->gmagick;
$this->palette = clone $this->palette;
if ($this->layers !== null) {
$this->layers = $this->getClassFactory()->createLayers(ClassFactoryInterface::HANDLE_GMAGICK, $this, $this->layers->key());
}
}
/**
* {@inheritdoc}
*
* @see \Imagine\Driver\InfoProvider::getDriverInfo()
* @since 1.3.0
*/
public static function getDriverInfo($required = true)
{
return DriverInfo::get($required);
}
/**
* Returns gmagick instance.
*
* @return \Gmagick
*/
public function getGmagick()
{
return $this->gmagick;
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\ManipulatorInterface::copy()
*/
public function copy()
{
return clone $this;
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\ManipulatorInterface::crop()
*/
public function crop(PointInterface $start, BoxInterface $size)
{
if (!$start->in($this->getSize())) {
throw new OutOfBoundsException('Crop coordinates must start at minimum 0, 0 position from top left corner, crop height and width must be positive integers and must not exceed the current image borders');
}
try {
$this->gmagick->cropimage($size->getWidth(), $size->getHeight(), $start->getX(), $start->getY());
} catch (\GmagickException $e) {
throw new RuntimeException('Crop operation failed', $e->getCode(), $e);
}
return $this;
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\ManipulatorInterface::flipHorizontally()
*/
public function flipHorizontally()
{
try {
$this->gmagick->flopimage();
} catch (\GmagickException $e) {
throw new RuntimeException('Horizontal flip operation failed', $e->getCode(), $e);
}
return $this;
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\ManipulatorInterface::flipVertically()
*/
public function flipVertically()
{
try {
$this->gmagick->flipimage();
} catch (\GmagickException $e) {
throw new RuntimeException('Vertical flip operation failed', $e->getCode(), $e);
}
return $this;
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\ManipulatorInterface::strip()
*/
public function strip()
{
try {
try {
$this->profile($this->palette->profile());
} catch (\Exception $e) {
// here we discard setting the profile as the previous incorporated profile
// is corrupted, let's now strip the image
}
$this->gmagick->stripimage();
} catch (\GmagickException $e) {
throw new RuntimeException('Strip operation failed', $e->getCode(), $e);
}
return $this;
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\ManipulatorInterface::paste()
*/
public function paste(ImageInterface $image, PointInterface $start, $alpha = 100)
{
if (!$image instanceof self) {
throw new InvalidArgumentException(sprintf('Gmagick\Image can only paste() Gmagick\Image instances, %s given', get_class($image)));
}
$alpha = (int) round($alpha);
if ($alpha < 0 || $alpha > 100) {
throw new InvalidArgumentException(sprintf('The %1$s argument can range from %2$d to %3$d, but you specified %4$d.', '$alpha', 0, 100, $alpha));
}
if ($alpha === 100) {
try {
$this->gmagick->compositeimage($image->gmagick, \Gmagick::COMPOSITE_DEFAULT, $start->getX(), $start->getY());
} catch (\GmagickException $e) {
throw new RuntimeException('Paste operation failed', $e->getCode(), $e);
}
} elseif ($alpha > 0) {
throw new NotSupportedException('Gmagick doesn\'t support paste with alpha.', 1);
}
return $this;
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\ManipulatorInterface::resize()
*/
public function resize(BoxInterface $size, $filter = ImageInterface::FILTER_UNDEFINED)
{
if (!in_array($filter, static::getAllFilterValues(), true)) {
throw new InvalidArgumentException('Unsupported filter type');
}
static $supportedFilters = array(
ImageInterface::FILTER_UNDEFINED => \Gmagick::FILTER_UNDEFINED,
ImageInterface::FILTER_BESSEL => \Gmagick::FILTER_BESSEL,
ImageInterface::FILTER_BLACKMAN => \Gmagick::FILTER_BLACKMAN,
ImageInterface::FILTER_BOX => \Gmagick::FILTER_BOX,
ImageInterface::FILTER_CATROM => \Gmagick::FILTER_CATROM,
ImageInterface::FILTER_CUBIC => \Gmagick::FILTER_CUBIC,
ImageInterface::FILTER_GAUSSIAN => \Gmagick::FILTER_GAUSSIAN,
ImageInterface::FILTER_HANNING => \Gmagick::FILTER_HANNING,
ImageInterface::FILTER_HAMMING => \Gmagick::FILTER_HAMMING,
ImageInterface::FILTER_HERMITE => \Gmagick::FILTER_HERMITE,
ImageInterface::FILTER_LANCZOS => \Gmagick::FILTER_LANCZOS,
ImageInterface::FILTER_MITCHELL => \Gmagick::FILTER_MITCHELL,
ImageInterface::FILTER_POINT => \Gmagick::FILTER_POINT,
ImageInterface::FILTER_QUADRATIC => \Gmagick::FILTER_QUADRATIC,
ImageInterface::FILTER_SINC => \Gmagick::FILTER_SINC,
ImageInterface::FILTER_TRIANGLE => \Gmagick::FILTER_TRIANGLE,
);
if (!array_key_exists($filter, $supportedFilters)) {
$filter = ImageInterface::FILTER_UNDEFINED;
}
try {
$this->gmagick->resizeimage($size->getWidth(), $size->getHeight(), $supportedFilters[$filter], 1);
} catch (\GmagickException $e) {
throw new RuntimeException('Resize operation failed', $e->getCode(), $e);
}
return $this;
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\ManipulatorInterface::rotate()
*/
public function rotate($angle, ColorInterface $background = null)
{
try {
if ($background === null) {
$background = $this->palette->color('fff');
}
$pixel = $this->getColor($background);
$this->gmagick->rotateimage($pixel, $angle);
unset($pixel);
} catch (\GmagickException $e) {
throw new RuntimeException('Rotate operation failed', $e->getCode(), $e);
}
return $this;
}
/**
* Applies options before save or output.
*
* @param \Gmagick $image
* @param array $options
* @param string $path
*
* @throws \Imagine\Exception\InvalidArgumentException
*/
private function applyImageOptions(\Gmagick $image, array $options, $path)
{
if (isset($options['format'])) {
$format = $options['format'];
} elseif ('' !== $extension = pathinfo($path, \PATHINFO_EXTENSION)) {
$format = $extension;
} else {
$format = pathinfo($image->getImageFilename(), \PATHINFO_EXTENSION);
}
$format = strtolower($format);
switch ($format) {
case 'jpeg':
case 'jpg':
case 'pjpeg':
if (!isset($options['jpeg_quality'])) {
if (isset($options['quality'])) {
$options['jpeg_quality'] = $options['quality'];
}
}
if (isset($options['jpeg_quality'])) {
$image->setCompressionQuality($options['jpeg_quality']);
}
if (isset($options['jpeg_sampling_factors'])) {
if (!is_array($options['jpeg_sampling_factors']) || \count($options['jpeg_sampling_factors']) < 1) {
throw new InvalidArgumentException('jpeg_sampling_factors option should be an array of integers');
}
$image->setSamplingFactors(array_map(function ($factor) {
return (int) $factor;
}, $options['jpeg_sampling_factors']));
}
break;
case 'png':
if (!isset($options['png_compression_level'])) {
if (isset($options['quality'])) {
$options['png_compression_level'] = round((100 - $options['quality']) * 9 / 100);
}
}
if (isset($options['png_compression_level'])) {
if ($options['png_compression_level'] < 0 || $options['png_compression_level'] > 9) {
throw new InvalidArgumentException('png_compression_level option should be an integer from 0 to 9');
}
}
if (isset($options['png_compression_filter'])) {
if ($options['png_compression_filter'] < 0 || $options['png_compression_filter'] > 9) {
throw new InvalidArgumentException('png_compression_filter option should be an integer from 0 to 9');
}
}
if (isset($options['png_compression_level']) || isset($options['png_compression_filter'])) {
// first digit: compression level (default: 7)
$compression = isset($options['png_compression_level']) ? $options['png_compression_level'] * 10 : 70;
// second digit: compression filter (default: 5)
$compression += isset($options['png_compression_filter']) ? $options['png_compression_filter'] : 5;
$image->setCompressionQuality($compression);
}
break;
case 'webp':
if (!isset($options['webp_quality'])) {
if (isset($options['quality'])) {
$options['webp_quality'] = $options['quality'];
}
}
if (isset($options['webp_quality'])) {
$image->setCompressionQuality($options['webp_quality']);
}
break;
}
if (isset($options['resolution-units']) && isset($options['resolution-x']) && isset($options['resolution-y'])) {
switch ($options['resolution-units']) {
case ImageInterface::RESOLUTION_PIXELSPERCENTIMETER:
$image->setimageunits(\Gmagick::RESOLUTION_PIXELSPERCENTIMETER);
break;
case ImageInterface::RESOLUTION_PIXELSPERINCH:
$image->setimageunits(\Gmagick::RESOLUTION_PIXELSPERINCH);
break;
default:
throw new InvalidArgumentException('Unsupported image unit format');
}
$image->setimageresolution($options['resolution-x'], $options['resolution-y']);
}
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\ManipulatorInterface::save()
*/
public function save($path = null, array $options = array())
{
$path = $path === null ? $this->gmagick->getImageFilename() : $path;
if (trim($path) === '') {
throw new RuntimeException('You can omit save path only if image has been open from a file');
}
try {
$this->prepareOutput($options, $path);
$allFrames = !isset($options['animated']) || $options['animated'] === false;
$this->gmagick->writeimage($path, $allFrames);
} catch (\GmagickException $e) {
throw new RuntimeException('Save operation failed', $e->getCode(), $e);
}
return $this;
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\ManipulatorInterface::show()
*/
public function show($format, array $options = array())
{
header('Content-type: ' . $this->getMimeType($format));
echo $this->get($format, $options);
return $this;
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\ImageInterface::get()
*/
public function get($format, array $options = array())
{
try {
$options['format'] = $format;
$this->prepareOutput($options);
} catch (\GmagickException $e) {
throw new RuntimeException('Get operation failed', $e->getCode(), $e);
}
return $this->gmagick->getimagesblob();
}
/**
* @param array $options
* @param string $path
*/
private function prepareOutput(array $options, $path = null)
{
if (isset($options['animated']) && $options['animated'] === true) {
$format = isset($options['format']) ? $options['format'] : 'gif';
$delay = isset($options['animated.delay']) ? $options['animated.delay'] : null;
$loops = isset($options['animated.loops']) ? $options['animated.loops'] : 0;
$options['flatten'] = false;
$this->layers()->animate($format, $delay, $loops);
} else {
$this->layers()->merge();
}
$this->applyImageOptions($this->gmagick, $options, $path);
// flatten only if image has multiple layers
if ((!isset($options['flatten']) || $options['flatten'] === true) && $this->layers()->count() > 1) {
$this->flatten();
}
if (isset($options['format'])) {
$this->gmagick->setimageformat(strtoupper($options['format']));
}
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\ImageInterface::__toString()
*/
public function __toString()
{
return $this->get('png');
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\ImageInterface::draw()
*/
public function draw()
{
return $this->getClassFactory()->createDrawer(ClassFactoryInterface::HANDLE_GMAGICK, $this->gmagick);
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\ImageInterface::effects()
*/
public function effects()
{
return $this->getClassFactory()->createEffects(ClassFactoryInterface::HANDLE_GMAGICK, $this->gmagick);
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\ImageInterface::getSize()
*/
public function getSize()
{
try {
$i = $this->gmagick->getimageindex();
$this->gmagick->setimageindex(0); //rewind
$width = $this->gmagick->getimagewidth();
$height = $this->gmagick->getimageheight();
$this->gmagick->setimageindex($i);
} catch (\GmagickException $e) {
throw new RuntimeException('Get size operation failed', $e->getCode(), $e);
}
return $this->getClassFactory()->createBox($width, $height);
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\ManipulatorInterface::applyMask()
*/
public function applyMask(ImageInterface $mask)
{
if (!$mask instanceof self) {
throw new InvalidArgumentException('Can only apply instances of Imagine\Gmagick\Image as masks');
}
$size = $this->getSize();
$maskSize = $mask->getSize();
if ($size != $maskSize) {
throw new InvalidArgumentException(sprintf('The given mask doesn\'t match current image\'s size, current mask\'s dimensions are %s, while image\'s dimensions are %s', $maskSize, $size));
}
try {
$mask = $mask->copy();
$this->gmagick->compositeimage($mask->gmagick, \Gmagick::COMPOSITE_DEFAULT, 0, 0);
} catch (\GmagickException $e) {
throw new RuntimeException('Apply mask operation failed', $e->getCode(), $e);
}
return $this;
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\ImageInterface::mask()
*/
public function mask()
{
$mask = $this->copy();
try {
$mask->gmagick->modulateimage(100, 0, 100);
} catch (\GmagickException $e) {
throw new RuntimeException('Mask operation failed', $e->getCode(), $e);
}
return $mask;
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\ManipulatorInterface::fill()
*/
public function fill(FillInterface $fill)
{
try {
$draw = new \GmagickDraw();
$size = $this->getSize();
$w = $size->getWidth();
$h = $size->getHeight();
for ($x = 0; $x < $w; $x++) {
for ($y = 0; $y < $h; $y++) {
$pixel = $this->getColor($fill->getColor(new Point($x, $y)));
$draw->setfillcolor($pixel);
$draw->point($x, $y);
$pixel = null;
}
}
$this->gmagick->drawimage($draw);
$draw = null;
} catch (\GmagickException $e) {
throw new RuntimeException('Fill operation failed', $e->getCode(), $e);
}
return $this;
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\ImageInterface::histogram()
*/
public function histogram()
{
try {
$pixels = $this->gmagick->getimagehistogram();
} catch (\GmagickException $e) {
throw new RuntimeException('Error while fetching histogram', $e->getCode(), $e);
}
$image = $this;
return array_map(function (\GmagickPixel $pixel) use ($image) {
return $image->pixelToColor($pixel);
}, $pixels);
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\ImageInterface::getColorAt()
*/
public function getColorAt(PointInterface $point)
{
if (!$point->in($this->getSize())) {
throw new InvalidArgumentException(sprintf('Error getting color at point [%s,%s]. The point must be inside the image of size [%s,%s]', $point->getX(), $point->getY(), $this->getSize()->getWidth(), $this->getSize()->getHeight()));
}
try {
$cropped = clone $this->gmagick;
$histogram = $cropped
->rollimage(-$point->getX(), -$point->getY())
->cropImage(1, 1, 0, 0)
->getImageHistogram();
} catch (\GmagickException $e) {
throw new RuntimeException('Unable to get the pixel', $e->getCode(), $e);
}
$pixel = array_shift($histogram);
unset($histogram, $cropped);
return $this->pixelToColor($pixel);
}
/**
* Returns a color given a pixel, depending the Palette context.
*
* Note : this method is public for PHP 5.3 compatibility
*
* @param \GmagickPixel $pixel
*
* @throws \Imagine\Exception\InvalidArgumentException In case a unknown color is requested
*
* @return \Imagine\Image\Palette\Color\ColorInterface
*/
public function pixelToColor(\GmagickPixel $pixel)
{
static $colorMapping = array(
ColorInterface::COLOR_RED => \Gmagick::COLOR_RED,
ColorInterface::COLOR_GREEN => \Gmagick::COLOR_GREEN,
ColorInterface::COLOR_BLUE => \Gmagick::COLOR_BLUE,
ColorInterface::COLOR_CYAN => \Gmagick::COLOR_CYAN,
ColorInterface::COLOR_MAGENTA => \Gmagick::COLOR_MAGENTA,
ColorInterface::COLOR_YELLOW => \Gmagick::COLOR_YELLOW,
ColorInterface::COLOR_KEYLINE => \Gmagick::COLOR_BLACK,
// There is no gray component in \Gmagick, let's use one of the RGB comp
ColorInterface::COLOR_GRAY => \Gmagick::COLOR_RED,
);
$alpha = null;
if ($this->palette->supportsAlpha()) {
if ($alpha === null && defined('Gmagick::COLOR_ALPHA')) {
try {
$alpha = (int) round($pixel->getcolorvalue(\Gmagick::COLOR_ALPHA) * 100);
} catch (\GmagickPixelException $e) {
}
}
if ($alpha === null && defined('Gmagick::COLOR_OPACITY')) {
try {
$alpha = (int) round(100 - $pixel->getcolorvalue(\Gmagick::COLOR_OPACITY) * 100);
} catch (\GmagickPixelException $e) {
}
}
}
$multiplier = $this->palette()->getChannelsMaxValue();
return $this->palette->color(array_map(function ($color) use ($multiplier, $pixel, $colorMapping) {
if (!isset($colorMapping[$color])) {
throw new InvalidArgumentException(sprintf('Color %s is not mapped in Gmagick', $color));
}
return $pixel->getcolorvalue($colorMapping[$color]) * $multiplier;
}, $this->palette->pixelDefinition()), $alpha);
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\ImageInterface::layers()
*/
public function layers()
{
if ($this->layers === null) {
$this->layers = $this->getClassFactory()->createLayers(ClassFactoryInterface::HANDLE_GMAGICK, $this);
}
return $this->layers;
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\ImageInterface::interlace()
*/
public function interlace($scheme)
{
static $supportedInterlaceSchemes = array(
ImageInterface::INTERLACE_NONE => \Gmagick::INTERLACE_NO,
ImageInterface::INTERLACE_LINE => \Gmagick::INTERLACE_LINE,
ImageInterface::INTERLACE_PLANE => \Gmagick::INTERLACE_PLANE,
ImageInterface::INTERLACE_PARTITION => \Gmagick::INTERLACE_PARTITION,
);
if (!array_key_exists($scheme, $supportedInterlaceSchemes)) {
throw new InvalidArgumentException('Unsupported interlace type');
}
$this->gmagick->setInterlaceScheme($supportedInterlaceSchemes[$scheme]);
return $this;
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\ImageInterface::usePalette()
*/
public function usePalette(PaletteInterface $palette)
{
if ($this->palette->name() === $palette->name()) {
return $this;
}
$colorspaceMapping = self::getColorspaceMapping();
if (!isset($colorspaceMapping[$palette->name()])) {
throw new InvalidArgumentException(sprintf('The palette %s is not supported by Gmagick driver', $palette->name()));
}
try {
try {
$hasICCProfile = (bool) $this->gmagick->getimageprofile('ICM');
} catch (\GmagickException $e) {
$hasICCProfile = false;
}
if (!$hasICCProfile) {
$this->profile($this->palette->profile());
}
$this->profile($palette->profile());
$this->setColorspace($palette);
} catch (\GmagickException $e) {
throw new RuntimeException('Failed to set colorspace', $e->getCode(), $e);
}
return $this;
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\ImageInterface::palette()
*/
public function palette()
{
return $this->palette;
}
/**
* {@inheritdoc}
*
* @see \Imagine\Image\ImageInterface::profile()
*/
public function profile(ProfileInterface $profile)
{
try {
$this->gmagick->profileimage('ICM', $profile->data());
} catch (\GmagickException $e) {
if (strpos($e->getMessage(), 'LCMS encoding not enabled') !== false) {
throw new RuntimeException(sprintf('Unable to add profile %s to image, be sue to compile graphicsmagick with `--with-lcms2` option', $profile->name()), $e->getCode(), $e);
}
throw new RuntimeException(sprintf('Unable to add profile %s to image', $profile->name()), $e->getCode(), $e);
}
return $this;
}
/**
* Flatten the image.
*/
private function flatten()
{
// @see http://pecl.php.net/bugs/bug.php?id=22435
if (method_exists($this->gmagick, 'flattenImages')) {
try {
$this->gmagick = $this->gmagick->flattenImages();
} catch (\GmagickException $e) {
throw new RuntimeException('Flatten operation failed', $e->getCode(), $e);
}
}
}
/**
* Gets specifically formatted color string from Color instance.
*
* @param \Imagine\Image\Palette\Color\ColorInterface $color
*
* @throws \Imagine\Exception\InvalidArgumentException
*
* @return \GmagickPixel
*/
private function getColor(ColorInterface $color)
{
if (!$color->isOpaque()) {
static::getDriverInfo()->requireFeature(Info::FEATURE_TRANSPARENCY);
}
return new \GmagickPixel((string) $color);
}
/**
* Get the mime type based on format.
*
* @param string $format
*
* @throws \Imagine\Exception\InvalidArgumentException
*
* @return string mime-type
*/
private function getMimeType($format)
{
static $mimeTypes = array(
'jpeg' => 'image/jpeg',
'jpg' => 'image/jpeg',
'gif' => 'image/gif',
'png' => 'image/png',
'webp' => 'image/webp',
'wbmp' => 'image/vnd.wap.wbmp',
'xbm' => 'image/xbm',
'bmp' => 'image/bmp',
);
if (!isset($mimeTypes[$format])) {
throw new InvalidArgumentException(sprintf('Unsupported format given. Only %s are supported, %s given', implode(', ', array_keys($mimeTypes)), $format));
}
return $mimeTypes[$format];
}
/**
* Sets colorspace and image type, assigns the palette.
*
* @param \Imagine\Image\Palette\PaletteInterface $palette
*
* @throws \Imagine\Exception\InvalidArgumentException
*/
private function setColorspace(PaletteInterface $palette)
{
$colorspaceMapping = self::getColorspaceMapping();
if (!isset($colorspaceMapping[$palette->name()])) {
throw new InvalidArgumentException(sprintf('The palette %s is not supported by Gmagick driver', $palette->name()));
}
$this->gmagick->setimagecolorspace($colorspaceMapping[$palette->name()]);
$this->palette = $palette;
}
/**
* @return array
*/
private static function getColorspaceMapping()
{
if (self::$colorspaceMapping === null) {
$csm = array(
PaletteInterface::PALETTE_CMYK => \Gmagick::COLORSPACE_CMYK,
PaletteInterface::PALETTE_RGB => \Gmagick::COLORSPACE_RGB,
);
if (defined('Gmagick::COLORSPACE_GRAY')) {
$csm[PaletteInterface::PALETTE_GRAYSCALE] = \Gmagick::COLORSPACE_GRAY;
}
self::$colorspaceMapping = $csm;
}
return self::$colorspaceMapping;
}
}
Zerion Mini Shell 1.0