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<?php |
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namespace SixtyNine\Cloud; |
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use SixtyNine\Cloud\Model\Box; |
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use SixtyNine\Cloud\Placer\PlacerInterface; |
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/** |
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* Responsible to find a place for the word in the cloud |
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*/ |
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class Usher |
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{ |
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const DEFAULT_MAX_TRIES = 100000; |
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/** @var int */ |
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protected $maxTries; |
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/** @var \SixtyNine\Cloud\SimpleMask */ |
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protected $mask; |
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/** @var \SixtyNine\Cloud\Placer\PlacerInterface */ |
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protected $placer; |
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/** @var \SixtyNine\Cloud\FontMetrics */ |
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protected $metrics; |
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/** |
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* @param int $imgWidth |
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* @param int $imgHeight |
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* @param PlacerInterface $placer |
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* @param FontMetrics $metrics |
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* @param int $maxTries |
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*/ |
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public function __construct( |
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$imgWidth, |
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$imgHeight, |
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PlacerInterface $placer, |
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FontMetrics $metrics, |
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$maxTries = self::DEFAULT_MAX_TRIES |
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) { |
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$this->mask = new SimpleMask(); |
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$this->metrics = $metrics; |
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$this->imgHeight = $imgHeight; |
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$this->imgWidth = $imgWidth; |
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$this->maxTries = $maxTries; |
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$this->placer = $placer; |
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} |
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/** |
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* @param string $word |
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* @param string $font |
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* @param int $size |
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* @param int $angle |
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* @return bool|Box |
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*/ |
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public function getPlace($word, $font, $size, $angle) |
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{ |
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$bounds = new Box(0, 0, $this->imgWidth, $this->imgHeight); |
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$box = $this->metrics->calculateSize($word, $font, $size, $angle); |
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$place = $this->searchPlace($bounds, $box); |
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if ($place) { |
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$this->mask->add($place->getPosition(), $box); |
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return $place; |
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} |
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return false; |
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} |
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/** |
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* Search a free place for a new box. |
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* @param \SixtyNine\Cloud\Model\Box $bounds |
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* @param \SixtyNine\Cloud\Model\Box $box |
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* @return bool|Box |
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*/ |
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protected function searchPlace(Box $bounds, Box $box) |
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{ |
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$place_found = false; |
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$current = $this->placer->getFirstPlaceToTry(); |
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$curTry = 1; |
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while (!$place_found) { |
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if (!$current) { |
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return false; |
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} |
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if ($curTry > $this->maxTries) { |
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return false; |
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} |
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$currentBox = $box->move($current->getX(), $current->getY()); |
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$place_found = !$this->mask->overlaps($currentBox); |
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$place_found = $place_found && $currentBox->inside($bounds); |
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if ($place_found) { |
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break; |
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} |
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$current = $this->placer->getNextPlaceToTry($current); |
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$curTry++; |
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} |
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$currentBox = $box->move($current->getX(), $current->getY()); |
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return $currentBox->inside($bounds) ? $currentBox : false; |
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} |
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} |
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sixty-nine /
php-cloud-lib
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In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: