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<?php |
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namespace Sign; |
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class Line { |
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private $_length = 21; |
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private $_text; |
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private $_background = 'black'; |
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private $_parent; |
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private $_colours = array(); |
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private $_params = array(); |
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public function __construct($text, $parent) { |
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$this->setText($text); |
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$this->_parent = $parent; |
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} |
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public function setText($text) { |
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// tokenise text |
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preg_match_all('/\?+/', $text, $matches, PREG_OFFSET_CAPTURE); |
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$this->_params = array(); |
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foreach ($matches[0] as $key => $match) { |
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$this->_params[$key] = array('param' => new Param(strlen($match[0])), 'offset' => $match[1]); |
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} |
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$this->_text = $text; |
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} |
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public function color($start, $end, $name) { |
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return $this->colour($start, $end, $name); |
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} |
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public function colour($start, $end, $name) { |
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$this->_colours[] = array($start, $end, $name); |
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return $this; |
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} |
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public function end() { |
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return $this->_parent; |
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} |
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public function bind($position, $value) { |
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$this->_params[$position]['param']->setValue($value); |
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return $this; |
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} |
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public function align($position, $type) { |
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$this->_params[$position]['param']->align($type); |
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return $this; |
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} |
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private function _getColour($key) { |
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foreach ($this->_colours as $colour) { |
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if ($key >= $colour[0] && $key <= $colour[1]) { |
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return $colour[2]; |
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} |
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} |
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return 'red'; |
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} |
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public function render() { |
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$output = ''; |
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$length = 0; |
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foreach ($this->_params as $key => $param) { |
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$p = $param['param']; |
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if (!$p->bound()) continue; |
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$this->_text = substr_replace($this->_text, $p->value(), $param['offset'], strlen($p->value())); |
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} |
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// apply colours |
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foreach (str_split($this->_text) as $key => $char) { |
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if ($length++ > $this->_length) break; |
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$fore = $this->_getColour($key); |
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$output .= $this->_char($char, $fore); |
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} |
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// add padding |
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if ($length < $this->_length) { |
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for ($i=$length; $i < $this->_length; $i++) { |
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$output .= $this->_char(' ', null, $this->_background); |
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} |
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} |
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return $output; |
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} |
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private function _char($char, $fore = 'red', $back = 'black') { |
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return ColourMap::get($fore, $back).dechex(ord($char)); |
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} |
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} |
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YarekTyshchenko /
Sign
