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<?php |
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namespace Elphin\IcoFileLoader; |
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/** |
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* An instance of icon holds the extracted data from a .ico file |
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*/ |
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class Icon implements \ArrayAccess, \Countable |
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{ |
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/** |
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* @var IconImage[] |
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*/ |
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private $images = []; |
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/** |
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* Returns best icon image with dimensions matching w,h |
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* @param $w |
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* @param $h |
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* @return IconImage|null |
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*/ |
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public function findBestForSize($w, $h) |
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{ |
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$bestBitCount = 0; |
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$best = null; |
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foreach ($this->images as $image) { |
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if ($image->width == $w && $image->height == $h && ($image->bitCount > $bestBitCount)) { |
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$bestBitCount = $image->bitCount; |
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$best = $image; |
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} |
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} |
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return $best; |
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} |
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/** |
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* Finds the highest quality image in the icon |
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* @return IconImage|null |
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*/ |
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public function findBest() |
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{ |
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$bestBitCount = 0; |
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$bestWidth=0; |
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$best = null; |
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foreach ($this->images as $image) { |
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if (($image->width > $bestWidth) || |
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(($image->width == $bestWidth) && ($image->bitCount > $bestBitCount)) |
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) { |
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$bestWidth = $image->width; |
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$bestBitCount = $image->bitCount; |
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$best = $image; |
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} |
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} |
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return $best; |
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} |
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/** |
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* Count number of images in the icon |
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* As this class implements Countable you can simply use count($icon) if you desire |
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* @return int |
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*/ |
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public function count() |
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{ |
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return count($this->images); |
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} |
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/** |
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* Set an icon |
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* This is an implementation of ArrayAccess allowing you to do $icon[$x]=$image |
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* @param integer $offset |
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* @param IconImage $value |
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*/ |
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public function offsetSet($offset, $value) |
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{ |
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if (!$value instanceof IconImage) { |
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throw new \InvalidArgumentException('Can only add IconImage instances to an Icon'); |
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} |
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if (is_null($offset)) { |
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$this->images[] = $value; |
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} else { |
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$this->images[$offset] = $value; |
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} |
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} |
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/** |
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* Check if image with particular index exists |
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* This is an implementation of ArrayAccess allowing you to do isset($icon[$x]) |
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* @param integer $offset |
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* @return boolean |
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*/ |
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public function offsetExists($offset) |
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{ |
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return isset($this->images[$offset]); |
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} |
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/** |
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* Remove image from icon |
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* This is an implementation of ArrayAccess allowing you to do unset($icon[$x]) |
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* @param integer $offset |
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* @return boolean |
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*/ |
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public function offsetUnset($offset) |
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{ |
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unset($this->images[$offset]); |
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} |
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/** |
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* Get image from icon |
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* This is an implementation of ArrayAccess allowing you to do $image = $icon[$x] |
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* @param integer $offset |
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* @return IconImage |
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*/ |
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public function offsetGet($offset) |
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{ |
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return isset($this->images[$offset]) ? $this->images[$offset] : null; |
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} |
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} |
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lordelph /
icofileloader
