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<?php |
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namespace OneSheet\Width; |
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use OneSheet\Style\Font; |
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/** |
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* Class WidthCalculator to calculate the approximate width of |
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* a cell content. |
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* |
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* @package OneSheet\Width |
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*/ |
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class WidthCalculator |
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{ |
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/** |
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* @var WidthCollection |
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*/ |
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private $widthCollection; |
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/** |
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* @var array |
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*/ |
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private $characterWidths; |
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/** |
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* Calculator constructor. |
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* |
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* @param WidthCollection $widthCollection |
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*/ |
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public function __construct(WidthCollection $widthCollection) |
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{ |
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$this->widthCollection = $widthCollection; |
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} |
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/** |
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* Returns the estimated width of a cell value. |
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* |
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* @param mixed $value |
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* @param Font $font |
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* @return float |
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*/ |
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public function getCellWidth($value, Font $font) |
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{ |
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$width = 0.07 * $font->getSize(); |
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foreach ($this->getSingleCharacterArray($value) as $character) { |
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if (isset($this->characterWidths[$character])) { |
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$width += $this->characterWidths[$character]; |
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} elseif (strlen($character)) { |
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$width += 0.06 * $font->getSize(); |
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} |
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} |
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return $font->isBold() ? $width * $this->characterWidths['bold'] : $width; |
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} |
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/** |
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* Set proper font sizes by font. |
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* |
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* @param Font $font |
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*/ |
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public function setFont(Font $font) |
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{ |
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$this->characterWidths = $this->widthCollection->get($font->getName(), $font->getSize()); |
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} |
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/** |
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* Split value into individual characters. |
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* |
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* @param mixed $value |
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* @return array |
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*/ |
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private function getSingleCharacterArray($value) |
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{ |
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if (mb_strlen($value) == strlen($value)) { |
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return str_split($value); |
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} |
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return preg_split('~~u', $value, -1, PREG_SPLIT_NO_EMPTY); |
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} |
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} |
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nimmneun /
onesheet
