142 lines
3.8 KiB
PHP
142 lines
3.8 KiB
PHP
<?php
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// {{{ICINGA_LICENSE_HEADER}}}
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/**
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* This file is part of Icinga 2 Web.
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*
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* Icinga 2 Web - Head for multiple monitoring backends.
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* Copyright (C) 2013 Icinga Development Team
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* @copyright 2013 Icinga Development Team <info@icinga.org>
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* @license http://www.gnu.org/licenses/gpl-2.0.txt GPL, version 2
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* @author Icinga Development Team <info@icinga.org>
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*/
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// {{{ICINGA_LICENSE_HEADER}}}
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namespace Icinga\Chart\Primitive;
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use \DOMElement;
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use \Icinga\Chart\Render\LayoutBox;
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use \Icinga\Chart\Render\RenderContext;
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/**
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* Canvas SVG component that encapsulates grouping and padding and allows rendering
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* multiple elements in a group
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*
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*/
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class Canvas implements Drawable
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{
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/**
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* The name of the canvas, will be used as the id
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*
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* @var string
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*/
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private $name;
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/**
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* An array of child elements of this Canvas
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*
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* @var array
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*/
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private $children = array();
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/**
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* When true, this canvas is encapsulated in a clipPath tag and not drawn
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*
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* @var bool
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*/
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private $isClipPath = false;
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/**
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* The LayoutBox of this Canvas
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*
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* @var LayoutBox
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*/
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private $rect;
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/**
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* Create this canvas
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*
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* @param String $name The name of this canvas
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* @param LayoutBox $rect The layout and size of this canvas
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*/
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public function __construct($name, LayoutBox $rect)
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{
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$this->rect = $rect;
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$this->name = $name;
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}
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/**
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* Convert this canvas to a clipPath element
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*/
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public function toClipPath()
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{
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$this->isClipPath = true;
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}
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/**
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* Return the layout of this canvas
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*
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* @return LayoutBox
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*/
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public function getLayout()
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{
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return $this->rect;
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}
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/**
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* Add an element to this canvas
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*
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* @param Drawable $child
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*/
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public function addElement(Drawable $child)
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{
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$this->children[] = $child;
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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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* @return DOMElement The SVG Element
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*/
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public function toSvg(RenderContext $ctx)
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{
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$doc = $ctx->getDocument();
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if ($this->isClipPath) {
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$outer = $doc->createElement('defs');
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$innerContainer = $element = $doc->createElement('clipPath');
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$outer->appendChild($element);
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} else {
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$outer = $element = $doc->createElement('g');
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$innerContainer = $doc->createElement('g');
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$innerContainer->setAttribute('x', 0);
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$innerContainer->setAttribute('y', 0);
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$innerContainer->setAttribute('id', $this->name . '_inner');
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$innerContainer->setAttribute('transform', $this->rect->getInnerTransform($ctx));
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$element->appendChild($innerContainer);
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}
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$element->setAttribute('id', $this->name);
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foreach ($this->children as $child) {
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$innerContainer->appendChild($child->toSvg($ctx));
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}
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return $outer;
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}
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}
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