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<?php |
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namespace nstdio\svg\container; |
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use nstdio\svg\ElementInterface; |
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use nstdio\svg\shape\Line; |
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use nstdio\svg\shape\Shape; |
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/** |
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* Class Pattern |
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* |
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* A pattern is used to fill or stroke an object using a pre-defined graphic object which can be replicated ("tiled") |
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* at fixed intervals in x and y to cover the areas to be painted. Patterns are defined using a 'pattern' element and |
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* then referenced by properties 'fill' and 'stroke' on a given graphics element to indicate that the given element |
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* shall be filled or stroked with the referenced pattern. |
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* |
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* @link https://www.w3.org/TR/SVG/pservers.html#Patterns |
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* @property string patternUnits "userSpaceOnUse | objectBoundingBox" Defines the coordinate system for |
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* attributes 'x', |
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* 'y', 'width' and 'height'. If patternUnits="userSpaceOnUse", 'x', 'y', 'width' and 'height' represent |
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* values in the coordinate system that results from taking the current user coordinate system in place at |
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* the time when the 'pattern' element is referenced (i.e., the user coordinate system for the element |
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* referencing the 'pattern' element via a 'fill' or 'stroke' property) and then applying the transform |
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* specified by attribute 'patternTransform'. If patternUnits="objectBoundingBox", the user coordinate system |
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* for attributes 'x', 'y', 'width' and 'height' is established using the bounding box of the element to |
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* which the pattern is applied (see Object bounding box units) and then applying the transform specified by |
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* attribute 'patternTransform'. If attribute 'patternUnits' is not specified, then the effect is as if a |
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* value of 'objectBoundingBox' were specified. |
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* @property string patternContentUnits = "userSpaceOnUse | objectBoundingBox" Defines the coordinate system for the |
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* contents of the ‘pattern’. Note that this attribute has no effect if attribute ‘viewBox’ is specified. If |
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* patternContentUnits="userSpaceOnUse", the user coordinate system for the contents of the ‘pattern’ element |
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* is the coordinate system that results from taking the current user coordinate system in place at the time |
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* when the ‘pattern’ element is referenced (i.e., the user coordinate system for the element referencing the |
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* ‘pattern’ element via a ‘fill’ or ‘stroke’ property) and then applying the transform specified by |
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* attribute ‘patternTransform’. If patternContentUnits="objectBoundingBox", the user coordinate system for |
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* the contents of the ‘pattern’ element is established using the bounding box of the element to which the |
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* pattern is applied (see Object bounding box units) and then applying the transform specified by attribute |
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* ‘patternTransform’. If attribute ‘patternContentUnits’ is not specified, then the effect is as if a value |
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* of 'userSpaceOnUse' were specified. |
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* @property string patternTransform = "<transform-list>" Contains the definition of an optional additional |
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* transformation from the pattern coordinate system onto the target coordinate system (i.e., |
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* 'userSpaceOnUse' or 'objectBoundingBox'). This allows for things such as skewing the pattern tiles. This |
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* additional transformation matrix is post-multiplied to (i.e., inserted to the right of) any previously |
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* defined transformations, including the implicit transformation necessary to convert from object bounding |
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* box units to user space. If attribute ‘patternTransform’ is not specified, then the effect is as if an |
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* identity transform were specified. |
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* @property float x = "<coordinate>" ‘x’, ‘y’, ‘width’ and ‘height’ indicate how the pattern tiles |
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* are placed and spaced. These attributes represent coordinates and values in the coordinate space specified |
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* by the combination of attributes ‘patternUnits’ and ‘patternTransform’. If the attribute is not specified, |
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* the effect is as if a value of zero were specified. |
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* @property float y = "<coordinate>" See ‘x’. If the attribute is not specified, the effect is as |
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* if a value of zero were specified. |
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* @property float width = "<length>" See ‘x’. A negative value is an error (see Error processing). A |
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* value of zero disables rendering of the element (i.e., no paint is applied). If the attribute is not |
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* specified, the effect is as if a value of zero were specified. |
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* @property float height = "<length>" See ‘x’. A negative value is an error (see Error processing). A |
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* value of zero disables rendering of the element (i.e., no paint is applied). If the attribute is not |
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* specified, the effect is as if a value of zero were specified. |
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* @property float xlink :href = "<iri>" An IRI reference to a different ‘pattern’ element within the |
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* current SVG document fragment. Any attributes which are defined on the referenced element which are not |
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* defined on this element are inherited by this element. If this element has no children, and the referenced |
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* element does (possibly due to its own ‘xlink:href’ attribute), then this element inherits the children |
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* from the referenced element. Inheritance can be indirect to an arbitrary level; thus, if the referenced |
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* element inherits attributes or children due to its own ‘xlink:href’ attribute, then the current element |
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* can inherit those attributes or children. |
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* @package nstdio\svg\container |
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* @author Edgar Asatryan <[email protected]> |
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*/ |
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class Pattern extends Container |
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{ |
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public function __construct(ElementInterface $parent, $id = null) |
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{ |
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if ($parent instanceof SVG) { |
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$defs = $parent->getFirstChild(); |
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$parent = $defs; |
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} |
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parent::__construct($parent); |
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$this->id = $id; |
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} |
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public function getName() |
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{ |
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return 'pattern'; |
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} |
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public static function withShape(ContainerInterface $container, Shape $shape, array $patternConfig = [], $id = null) |
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{ |
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$patternConfig = array_merge(self::getDefaultConfig(), $patternConfig); |
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$shapeBox = $shape->getBoundingBox(); |
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$patternConfig['width'] = $shapeBox['width']; |
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$patternConfig['height'] = $shapeBox['height']; |
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$pattern = (new self($container, $id))->apply($patternConfig); |
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$shape->selfRemove(); |
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$pattern->append($shape); |
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return $pattern; |
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} |
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public static function verticalHatch(ContainerInterface $container, array $patternConfig = [], array $lineConfig = [], $id = null) |
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{ |
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return self::hatch($container, $patternConfig, $lineConfig, $id); |
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} |
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public static function horizontalHatch(ContainerInterface $container, array $patternConfig = [], array $lineConfig = [], $id = null) |
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{ |
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$patternConfig['patternTransform'] = "rotate(90)"; |
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return self::hatch($container, $patternConfig, $lineConfig, $id); |
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} |
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public static function diagonalHatch(ContainerInterface $container, array $patternConfig = [], array $lineConfig = [], $id = null) |
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{ |
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$patternConfig['patternTransform'] = "rotate(45)"; |
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return self::hatch($container, $patternConfig, $lineConfig, $id); |
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} |
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public static function crossHatch(ContainerInterface $container, array $patternConfig = [], array $lineConfig = [], $id = null) |
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{ |
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if (isset($patternConfig['width'])) { |
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$patternConfig['height'] = $patternConfig['width']; |
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} |
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if (isset($patternConfig['height'])) { |
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$patternConfig['width'] = $patternConfig['height']; |
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} |
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$patternConfig['patternTransform'] = "rotate(45)"; |
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$pattern = self::hatch($container, $patternConfig, $lineConfig, $id); |
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/** @var Line $firstLine */ |
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$firstLine = $pattern->getFirstChild()->apply([ |
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'x1' => 0, |
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'y1' => $pattern->height / 2, |
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'x2' => $pattern->width, |
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'y2' => $pattern->height / 2, |
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]); |
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$attrs = $firstLine->allAttributes(['x1', 'y1', 'x2', 'y2', 'id']); |
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$line = new Line($pattern, $pattern->width / 2, 0, $pattern->width / 2, $pattern->height); |
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$line->id = null; |
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$line->apply($attrs); |
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return $pattern; |
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} |
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public static function straightCrossHatch(ContainerInterface $container, array $patternConfig = [], array $lineConfig = [], $id = null) |
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{ |
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$patternConfig['patternTransform'] = 'rotate(45)'; |
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return self::crossHatch($container, $patternConfig, $lineConfig, $id); |
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} |
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protected static function hatch(ContainerInterface $container, array $patternConfig = [], array $lineConfig = [], $id = null) |
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{ |
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$patternConfig = array_merge(self::getDefaultConfig(), $patternConfig); |
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$lineDefaultConfig = ['stroke' => 'black', 'stroke-width' => 1, 'fill' => 'none']; |
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$lineConfig = array_merge($lineDefaultConfig, $lineConfig); |
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$pattern = (new self($container, $id))->apply($patternConfig); |
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(new Line($pattern, 0, 0, 0, $pattern->height))->apply($lineConfig); |
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return $pattern; |
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} |
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protected static function getDefaultConfig() |
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{ |
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return ['x' => 0, 'y' => 0, 'height' => 4, 'width' => 4, 'patternUnits' => 'userSpaceOnUse']; |
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} |
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} |
nstdio /
SVGMagick
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