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<?php |
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/** |
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* Class to Handle Polygons in SM. |
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* This class is used to convert the string representation |
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* of Polygons to concrete structures. |
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* Also acts as a factory class for polygons |
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* |
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* @since 2.1 |
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* |
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* @file SM_PolygonHandler.php |
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* |
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* @author Nischay Nahata |
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*/ |
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class PolygonHandler { |
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/** |
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* The string used to store this value as a string in SMW. |
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* |
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* @since 2.1 |
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* |
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* @var string |
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*/ |
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protected $text; |
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/** |
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* The string used to store this value as an object. |
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* |
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* @since 2.1 |
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* |
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* @var object or null |
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*/ |
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protected $value = null; |
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/** |
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* The array of error messages occurred in parsing. |
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* |
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* @since 2.1 |
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* |
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* @var array |
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*/ |
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protected $errors = []; |
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/** |
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* Array of classes used to validate different Geographic shapes. |
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* |
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* @since 2.1 |
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* |
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* @var array |
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*/ |
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protected $validatorClasses = [ |
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'locations' => 'LocationValidator', |
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'lines' => 'LineValidator', |
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'polygons' => 'PolygonValidator', |
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'circles' => 'CircleValidator', |
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'rectangles' => 'RectangleValidator' |
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]; |
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/** |
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* Array of classes of different Geographic shapes. |
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* |
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* @since 2.1 |
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* |
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* @var array |
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*/ |
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protected $geoClasses = [ |
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'locations' => 'MapsLocation', |
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'lines' => 'MapsLine', |
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'polygons' => 'MapsPolygon', |
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'circles' => 'MapsCircle', |
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'rectangles' => 'MapsRectanlge' |
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]; |
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/** |
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* NOTE: These need to be changed as Manipulations are depreceated. |
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* Array of classes for param handling of different Geographic shapes. |
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* |
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* @since 2.1 |
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* |
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* @var array |
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*/ |
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protected $paramClasses = [ |
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'locations' => 'MapsParamLocation', |
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'lines' => 'MapsParamLine', |
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'polygons' => 'MapsParamPolygon', |
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'circles' => 'MapsParamCircle', |
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'rectangles' => 'MapsParamRectangle' |
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]; |
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/** |
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* Constructor. |
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* |
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* @since 2.1 |
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* |
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* @param string $text |
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*/ |
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public function __construct( $text ) { |
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$this->text = $text; |
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} |
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public function getGeoType() { |
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$parts = explode( '=', $this->text ); |
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return current( $parts ); |
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} |
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public function getValidationErrors() { |
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$this->validateText(); |
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return $this->errors; |
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} |
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protected function validateText() { |
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$parts = explode( '=', $this->text ); |
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if( array_key_exists( $parts[0], $this->validatorClasses ) ) { |
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$validatorClass = new $this->validatorClasses[ $parts[0] ]( '~' ); |
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if ( !$validatorClass->doValidation( $parts[1] ) ) |
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$this->errors[] = wfMessage( 'semanticmaps-shapes-improperformat', $this->text )->escaped(); |
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} else { |
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$this->errors[] = wfMessage( 'semanticmaps-shapes-missingshape', $parts[0] )->escaped(); |
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} |
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} |
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/** |
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* Gets an object of the model class the string represents. |
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* |
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* @since 2.1 |
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*/ |
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public function shapeFromText() { |
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$parts = explode( '~' , $this->text ); |
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$shape = explode( '=', array_shift( $parts ) ); |
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if( array_key_exists( $shape[0] , $this->geoClasses ) ) { |
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$geoClass = new $this->geoClasses[ $shape[0] ]( explode( ':' , $shape[1] ) ); |
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return $geoClass; |
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} else { |
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return false; |
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} |
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} |
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} |
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SemanticMediaWiki /
SemanticMaps
