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<?php |
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namespace Box\Spout\Writer\XLSX\Helper; |
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/** |
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* SizeCollection to build and hold widths & heights of individual characters. |
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*/ |
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class SizeCollection |
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{ |
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/** Constant for default character size. */ |
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const BASE_SIZE = 12; |
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/** @var array Contains character widths/heights for each font & size. */ |
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private $sizes = array(); |
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/** |
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* SizeCollection constructor to read character sizes from csv. |
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*/ |
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public function __construct() |
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{ |
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$fh = fopen(dirname(__FILE__) . '/size_collection.csv', 'r'); |
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$head = fgetcsv($fh); |
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unset($head[0], $head[1]); |
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while ($row = fgetcsv($fh)) { |
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$this->addSizesToCollection($head, $row); |
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} |
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} |
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/** |
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* Return character sizes for given font name. |
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* |
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* @param string $fontName |
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* @param int $fontSize |
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* @return array |
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*/ |
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public function get($fontName, $fontSize) |
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{ |
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if (isset($this->sizes[$fontName][$fontSize])) { |
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return $this->sizes[$fontName][$fontSize]; |
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} |
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return $this->calculate($fontName, $fontSize); |
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} |
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/** |
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* Calculate character widths based on font name and size. |
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* |
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* @param string $fontName |
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* @param int $fontSize |
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* @return array |
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*/ |
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private function calculate($fontName, $fontSize) |
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{ |
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foreach ($this->getBaseSizes($fontName) as $character => $size) { |
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$size = round($size / self::BASE_SIZE * $fontSize, 3); |
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$this->sizes[$fontName][$fontSize][$character] = $size; |
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} |
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return $this->sizes[$fontName][$fontSize]; |
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} |
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/** |
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* Get character base widths by font name or default. |
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* |
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* @param string $fontName |
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* @return array |
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*/ |
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private function getBaseSizes($fontName) |
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{ |
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if (isset($this->sizes[$fontName])) { |
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return $this->sizes[$fontName][self::BASE_SIZE]; |
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} |
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return $this->sizes['Calibri'][self::BASE_SIZE]; |
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} |
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/** |
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* Add character widths for a single font. |
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* |
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* @param array $keys |
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* @param array $values |
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*/ |
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private function addSizesToCollection(array $keys, array $values) |
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{ |
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$fontName = array_shift($values); |
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$fontSize = array_shift($values); |
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$this->sizes[$fontName][$fontSize] = array_combine($keys, $values); |
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} |
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} |
box /
spout
