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<?php |
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namespace OneSheet\Width; |
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/** |
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* Class WidthCollection |
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* |
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* @package OneSheet |
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*/ |
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class WidthCollection |
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{ |
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/** |
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* Array containing character widths for each font & size. |
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* |
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* @var array |
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*/ |
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private static $widths = array(); |
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/** |
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* Create character width map for each font. |
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*/ |
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public function __construct() |
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{ |
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self::loadWidthsFromCsv(dirname(__FILE__) . '/width_collection.csv'); |
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} |
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/** |
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* Dirty way to allow developers to load character widths that |
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* are not yet included. |
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* |
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* @param string $csvPath |
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*/ |
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public static function loadWidthsFromCsv($csvPath) |
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{ |
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$fh = fopen($csvPath, 'r'); |
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$head = fgetcsv($fh); |
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unset($head[0], $head[1]); |
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while ($row = fgetcsv($fh)) { |
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$fontName = array_shift($row); |
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$fontSize = array_shift($row); |
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self::$widths[$fontName][$fontSize] = array_combine($head, $row); |
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} |
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} |
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/** |
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* Return character widths 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, $fontSize) |
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{ |
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if (isset(self::$widths[$fontName][$fontSize])) { |
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return self::$widths[$fontName][$fontSize]; |
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} |
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return self::calculate($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 $fontSize |
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* @return array |
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*/ |
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private static function calculate($fontName, $fontSize) |
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{ |
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if (isset(self::$widths[$fontName])) { |
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$baseWidths = self::$widths[$fontName][12]; |
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} else { |
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$baseWidths = self::$widths['Calibri'][12]; |
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} |
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foreach ($baseWidths as $character => $width) { |
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self::$widths[$fontName][$fontSize][$character] = $width / 12 * $fontSize; |
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} |
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return self::$widths[$fontName][$fontSize]; |
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} |
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} |
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nimmneun /
onesheet
