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Merge pull request #19 from jmleroux/jml-svg-templates
SVG templates
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,147 @@ | ||
| <?php | ||
|
|
||
| /* | ||
| * This file is part of the badge-poser package. | ||
| * | ||
| * (c) PUGX <http://pugx.github.io/> | ||
| * | ||
| * For the full copyright and license information, please view the LICENSE | ||
| * file that was distributed with this source code. | ||
| */ | ||
|
|
||
| namespace PUGX\Poser\Render; | ||
|
|
||
| use PUGX\Poser\Badge; | ||
| use PUGX\Poser\Calculator\GDTextSizeCalculator; | ||
| use PUGX\Poser\Calculator\TextSizeCalculatorInterface; | ||
| use PUGX\Poser\Image; | ||
| use SimpleXMLElement; | ||
|
|
||
| /** | ||
| * Local SVG renderer. | ||
| * Generate SVG badges from local templates. | ||
| * | ||
| * @author JM Leroux <[email protected]> | ||
| */ | ||
| abstract class LocalSvgRenderer implements RenderInterface | ||
| { | ||
| const VENDOR_COLOR = '#555'; | ||
|
|
||
| /** | ||
| * @var TextSizeCalculatorInterface | ||
| */ | ||
| private $textSizeCalculator; | ||
|
|
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| /** | ||
| * @var string | ||
| */ | ||
| private $templatesDirectory; | ||
|
|
||
| /** | ||
| * @param TextSizeCalculatorInterface $textSizeCalculator | ||
| * @param null|string $templatesDirectory | ||
| */ | ||
| public function __construct(TextSizeCalculatorInterface $textSizeCalculator = null, $templatesDirectory = null) | ||
| { | ||
| $this->textSizeCalculator = $textSizeCalculator; | ||
| if (null === $this->textSizeCalculator) { | ||
| $this->textSizeCalculator = new GDTextSizeCalculator(); | ||
| } | ||
|
|
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| $this->templatesDirectory = $templatesDirectory; | ||
| if (null === $this->templatesDirectory) { | ||
| $this->templatesDirectory = __DIR__ . '/../Resources/templates';; | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * @param Badge $badge | ||
| * | ||
| * @return mixed | ||
| */ | ||
| public function render(Badge $badge) | ||
| { | ||
| $template = $this->getTemplate($this->getTemplateName()); | ||
| $parameters = $this->buildParameters($badge); | ||
|
|
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| return $this->renderSvg($template, $parameters, $badge->getFormat()); | ||
| } | ||
|
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| /** | ||
| * @return string | ||
| */ | ||
| abstract protected function getTemplateName(); | ||
|
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| /** | ||
| * @param $format | ||
| * | ||
| * @return string SVG content of the template | ||
| */ | ||
| private function getTemplate($format) | ||
| { | ||
| $filepath = sprintf('%s/%s.svg', $this->templatesDirectory, $format); | ||
|
|
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| if (!file_exists($filepath)) { | ||
| throw new \InvalidArgumentException(sprintf('No template for format %s', $format)); | ||
| } | ||
|
|
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| return file_get_contents($filepath); | ||
| } | ||
|
|
||
| /** | ||
| * @param $text | ||
| * | ||
| * @return float | ||
| */ | ||
| private function stringWidth($text) | ||
| { | ||
| return $this->textSizeCalculator->calculateWidth($text); | ||
| } | ||
|
|
||
| /** | ||
| * @param string $render | ||
| * @param array $parameters | ||
| * @param string $format | ||
| * | ||
| * @return Image | ||
| */ | ||
| private function renderSvg($render, $parameters, $format) | ||
| { | ||
| foreach ($parameters as $key => $variable) { | ||
| $render = str_replace(sprintf('{{ %s }}', $key), $variable, $render); | ||
| } | ||
|
|
||
| try { | ||
| $xml = new SimpleXMLElement($render); | ||
| } catch (\Exception $e) { | ||
| throw new \RuntimeException('Generated string is not a valid XML'); | ||
| } | ||
| if ('svg' !== $xml->getName()) { | ||
| throw new \RuntimeException('Generated xml is not a SVG'); | ||
| } | ||
|
|
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| return Image::createFromString($render, $format); | ||
| } | ||
|
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| /** | ||
| * @param Badge $badge | ||
| * | ||
| * @return array | ||
| */ | ||
| private function buildParameters(Badge $badge) | ||
| { | ||
| $parameters = array(); | ||
|
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| $parameters['vendorWidth'] = $this->stringWidth($badge->getSubject()); | ||
| $parameters['valueWidth'] = $this->stringWidth($badge->getStatus()); | ||
| $parameters['totalWidth'] = $parameters['valueWidth'] + $parameters['vendorWidth']; | ||
| $parameters['vendorColor'] = static::VENDOR_COLOR; | ||
| $parameters['valueColor'] = $badge->getHexColor(); | ||
| $parameters['vendor'] = $badge->getSubject(); | ||
| $parameters['value'] = $badge->getStatus(); | ||
| $parameters['vendorStartPosition'] = round($parameters['vendorWidth'] / 2, 1) + 1; | ||
| $parameters['valueStartPosition'] = $parameters['vendorWidth'] + round($parameters['valueWidth'] / 2, 1) - 1; | ||
|
|
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| return $parameters; | ||
| } | ||
| } |
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