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<?php |
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/** |
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* Copyright (C) 2019-2021 Graham Breach |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Lesser General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (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 Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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/** |
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* For more information, please contact <graham@goat1000.com> |
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*/ |
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|
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namespace Goat1000\SVGGraph; |
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|
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class MarkerShape extends Shape { |
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protected $element = 'use'; |
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protected $required = ['type', 'x', 'y']; |
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protected $transform = ['size' => 'y']; |
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protected $transform_from = ['size' => 'y']; |
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protected $transform_pairs = [ ['x', 'y'] ]; |
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|
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/** |
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* Override to draw a marker |
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*/ |
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protected function drawElement(&$graph, &$attributes) |
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{ |
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$markers = new Markers($graph); |
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$size = isset($attributes['size']) ? $attributes['size'] : 10; |
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$stroke_width = isset($attributes['stroke-width']) ? |
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$attributes['stroke-width'] : 1; |
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$opacity = isset($attributes['opacity']) ? |
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$attributes['opacity'] : 1; |
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$angle = isset($attributes['angle']) ? |
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$attributes['angle'] : 0; |
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$id = $markers->create($attributes['type'], $size, |
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$attributes['fill'], $stroke_width, $attributes['stroke'], |
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$opacity, $angle); |
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|
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$remove = ['type', 'size', 'fill', 'stroke', 'stroke-width', |
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'opacity', 'angle']; |
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$use = $attributes; |
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foreach($remove as $key) { |
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unset($use[$key]); |
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} |
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|
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// clip-path must be applied to <g> to prevent being offset with <use> |
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if(isset($use['clip-path'])) { |
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$group = ['clip-path' => $use['clip-path']]; |
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unset($use['clip-path']); |
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$e = $graph->element('g', $group, null, |
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$graph->defs->useSymbol($id, $use)); |
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} else { |
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$e = $graph->defs->useSymbol($id, $use); |
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} |
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return $e; |
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} |
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} |
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