83 lines
2.2 KiB
PHP
83 lines
2.2 KiB
PHP
<?php
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// {{{ICINGA_LICENSE_HEADER}}}
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// {{{ICINGA_LICENSE_HEADER}}}
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namespace Icinga\Chart\Render;
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use Icinga\Chart\Render\RenderContext;
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use Icinga\Chart\Primitive\Drawable;
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use DOMElement;
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/**
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* Class Rotator
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* @package Icinga\Chart\Render
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*/
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class Rotator implements Drawable
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{
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/**
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* The drawable element to rotate
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*
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* @var Drawable
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*/
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private $element;
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/**
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* @var int
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*/
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private $degrees;
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/**
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* Wrap an element into a new instance of Rotator
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*
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* @param Drawable $element The element to rotate
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* @param int $degrees The amount of degrees
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*/
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public function __construct(Drawable $element, $degrees)
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{
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$this->element = $element;
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$this->degrees = $degrees;
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}
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/**
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* Rotate the given element.
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*
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* @param RenderContext $ctx The rendering context
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* @param DOMElement $el The element to rotate
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* @param $degrees The amount of degrees
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*
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* @return DOMElement The rotated DOMElement
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*/
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private function rotate(RenderContext $ctx, DOMElement $el, $degrees)
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{
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// Create a box containing the rotated element relative to the original element position
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$container = $ctx->getDocument()->createElement('g');
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$x = $el->getAttribute('x');
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$y = $el->getAttribute('y');
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$container->setAttribute('transform', 'translate(' . $x . ',' . $y . ')');
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$el->removeAttribute('x');
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$el->removeAttribute('y');
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// Put the element into a rotated group
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//$rotate = $ctx->getDocument()->createElement('g');
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$el->setAttribute('transform', 'rotate(' . $degrees . ')');
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//$rotate->appendChild($el);
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$container->appendChild($el);
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return $container;
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}
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/**
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* Create the SVG representation from this Drawable
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*
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* @param RenderContext $ctx The context to use for rendering
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*
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* @return DOMElement The SVG Element
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*/
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public function toSvg(RenderContext $ctx)
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{
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$el = $this->element->toSvg($ctx);
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return $this->rotate($ctx, $el, $this->degrees);
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}
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}
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