/lib/Zend/Barcode/Renderer/Svg.php
PHP | 382 lines | 217 code | 25 blank | 140 comment | 26 complexity | f343fcfe2ae96bc3805913bbe09addf6 MD5 | raw file
- <?php
- /**
- * Zend Framework
- *
- * LICENSE
- *
- * This source file is subject to the new BSD license that is bundled
- * with this package in the file LICENSE.txt.
- * It is also available through the world-wide-web at this URL:
- * http://framework.zend.com/license/new-bsd
- * If you did not receive a copy of the license and are unable to
- * obtain it through the world-wide-web, please send an email
- * to license@zend.com so we can send you a copy immediately.
- *
- * @category Zend
- * @package Zend_Barcode
- * @subpackage Renderer
- * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
- * @license http://framework.zend.com/license/new-bsd New BSD License
- * @version $Id: Image.php 20366 2010-01-18 03:56:52Z ralph $
- */
- /** @see Zend_Barcode_Renderer_RendererAbstract*/
- #require_once 'Zend/Barcode/Renderer/RendererAbstract.php';
- /**
- * Class for rendering the barcode as svg
- *
- * @category Zend
- * @package Zend_Barcode
- * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
- * @license http://framework.zend.com/license/new-bsd New BSD License
- */
- class Zend_Barcode_Renderer_Svg extends Zend_Barcode_Renderer_RendererAbstract
- {
- /**
- * Resource for the image
- * @var DOMDocument
- */
- protected $_resource = null;
- /**
- * Root element of the XML structure
- * @var DOMElement
- */
- protected $_rootElement = null;
- /**
- * Height of the rendered image wanted by user
- * @var integer
- */
- protected $_userHeight = 0;
- /**
- * Width of the rendered image wanted by user
- * @var integer
- */
- protected $_userWidth = 0;
- /**
- * Set height of the result image
- * @param null|integer $value
- * @return Zend_Image_Barcode_Abstract
- * @throw Zend_Image_Barcode_Exception
- */
- public function setHeight($value)
- {
- if (!is_numeric($value) || intval($value) < 0) {
- #require_once 'Zend/Barcode/Renderer/Exception.php';
- throw new Zend_Barcode_Renderer_Exception(
- 'Svg height must be greater than or equals 0'
- );
- }
- $this->_userHeight = intval($value);
- return $this;
- }
- /**
- * Get barcode height
- *
- * @return int
- */
- public function getHeight()
- {
- return $this->_userHeight;
- }
- /**
- * Set barcode width
- *
- * @param mixed $value
- * @return void
- */
- public function setWidth($value)
- {
- if (!is_numeric($value) || intval($value) < 0) {
- #require_once 'Zend/Barcode/Renderer/Exception.php';
- throw new Zend_Barcode_Renderer_Exception(
- 'Svg width must be greater than or equals 0'
- );
- }
- $this->_userWidth = intval($value);
- return $this;
- }
- /**
- * Get barcode width
- *
- * @return int
- */
- public function getWidth()
- {
- return $this->_userWidth;
- }
- /**
- * Set an image resource to draw the barcode inside
- *
- * @param DOMDocument $value
- * @return Zend_Barcode_Renderer
- * @throw Zend_Barcode_Renderer_Exception
- */
- public function setResource($svg)
- {
- if (!$svg instanceof DOMDocument) {
- #require_once 'Zend/Barcode/Renderer/Exception.php';
- throw new Zend_Barcode_Renderer_Exception(
- 'Invalid DOMDocument resource provided to setResource()'
- );
- }
- $this->_resource = $svg;
- return $this;
- }
- /**
- * Initialize the image resource
- *
- * @return void
- */
- protected function _initRenderer()
- {
- $barcodeWidth = $this->_barcode->getWidth(true);
- $barcodeHeight = $this->_barcode->getHeight(true);
- $backgroundColor = $this->_barcode->getBackgroundColor();
- $imageBackgroundColor = 'rgb(' . implode(', ', array(($backgroundColor & 0xFF0000) >> 16,
- ($backgroundColor & 0x00FF00) >> 8,
- ($backgroundColor & 0x0000FF))) . ')';
- $width = $barcodeWidth;
- $height = $barcodeHeight;
- if ($this->_userWidth && $this->_barcode->getType() != 'error') {
- $width = $this->_userWidth;
- }
- if ($this->_userHeight && $this->_barcode->getType() != 'error') {
- $height = $this->_userHeight;
- }
- if ($this->_resource === null) {
- $this->_resource = new DOMDocument('1.0', 'utf-8');
- $this->_resource->formatOutput = true;
- $this->_rootElement = $this->_resource->createElement('svg');
- $this->_rootElement->setAttribute('xmlns', "http://www.w3.org/2000/svg");
- $this->_rootElement->setAttribute('version', '1.1');
- $this->_rootElement->setAttribute('width', $width);
- $this->_rootElement->setAttribute('height', $height);
- $this->_appendRootElement('title',
- array(),
- "Barcode " . strtoupper($this->_barcode->getType()) . " " . $this->_barcode->getText());
- } else {
- $this->_readRootElement();
- $width = $this->_rootElement->getAttribute('width');
- $height = $this->_rootElement->getAttribute('height');
- }
- $this->_adjustPosition($height, $width);
- $this->_appendRootElement('rect',
- array('x' => $this->_leftOffset,
- 'y' => $this->_topOffset,
- 'width' => ($this->_leftOffset + $barcodeWidth - 1),
- 'height' => ($this->_topOffset + $barcodeHeight - 1),
- 'fill' => $imageBackgroundColor));
- }
- protected function _readRootElement()
- {
- if ($this->_resource !== null) {
- $this->_rootElement = $this->_resource->documentElement;
- }
- }
- /**
- * Append a new DOMElement to the root element
- *
- * @param string $tagName
- * @param array $attributes
- * @param string $textContent
- */
- protected function _appendRootElement($tagName, $attributes = array(), $textContent = null)
- {
- $newElement = $this->_createElement($tagName, $attributes, $textContent);
- $this->_rootElement->appendChild($newElement);
- }
- /**
- * Create DOMElement
- *
- * @param string $tagName
- * @param array $attributes
- * @param string $textContent
- * @return DOMElement
- */
- protected function _createElement($tagName, $attributes = array(), $textContent = null)
- {
- $element = $this->_resource->createElement($tagName);
- foreach ($attributes as $k =>$v) {
- $element->setAttribute($k, $v);
- }
- if ($textContent !== null) {
- $element->appendChild(new DOMText((string) $textContent));
- }
- return $element;
- }
- /**
- * Check barcode parameters
- *
- * @return void
- */
- protected function _checkParams()
- {
- $this->_checkDimensions();
- }
- /**
- * Check barcode dimensions
- *
- * @return void
- */
- protected function _checkDimensions()
- {
- if ($this->_resource !== null) {
- $this->_readRootElement();
- $height = (float) $this->_rootElement->getAttribute('height');
- if ($height < $this->_barcode->getHeight(true)) {
- #require_once 'Zend/Barcode/Renderer/Exception.php';
- throw new Zend_Barcode_Renderer_Exception(
- 'Barcode is define outside the image (height)'
- );
- }
- } else {
- if ($this->_userHeight) {
- $height = $this->_barcode->getHeight(true);
- if ($this->_userHeight < $height) {
- #require_once 'Zend/Barcode/Renderer/Exception.php';
- throw new Zend_Barcode_Renderer_Exception(sprintf(
- "Barcode is define outside the image (calculated: '%d', provided: '%d')",
- $height,
- $this->_userHeight
- ));
- }
- }
- }
- if ($this->_resource !== null) {
- $this->_readRootElement();
- $width = $this->_rootElement->getAttribute('width');
- if ($width < $this->_barcode->getWidth(true)) {
- #require_once 'Zend/Barcode/Renderer/Exception.php';
- throw new Zend_Barcode_Renderer_Exception(
- 'Barcode is define outside the image (width)'
- );
- }
- } else {
- if ($this->_userWidth) {
- $width = (float) $this->_barcode->getWidth(true);
- if ($this->_userWidth < $width) {
- #require_once 'Zend/Barcode/Renderer/Exception.php';
- throw new Zend_Barcode_Renderer_Exception(sprintf(
- "Barcode is define outside the image (calculated: '%d', provided: '%d')",
- $width,
- $this->_userWidth
- ));
- }
- }
- }
- }
- /**
- * Draw the barcode in the rendering resource
- * @return mixed
- */
- public function draw()
- {
- parent::draw();
- $this->_resource->appendChild($this->_rootElement);
- return $this->_resource;
- }
- /**
- * Draw and render the barcode with correct headers
- *
- * @return mixed
- */
- public function render()
- {
- $this->draw();
- header("Content-Type: image/svg+xml");
- echo $this->_resource->saveXML();
- }
- /**
- * Draw a polygon in the svg resource
- *
- * @param array $points
- * @param integer $color
- * @param boolean $filled
- */
- protected function _drawPolygon($points, $color, $filled = true)
- {
- $color = 'rgb(' . implode(', ', array(($color & 0xFF0000) >> 16,
- ($color & 0x00FF00) >> 8,
- ($color & 0x0000FF))) . ')';
- $orientation = $this->getBarcode()->getOrientation();
- $newPoints = array(
- $points[0][0] + $this->_leftOffset,
- $points[0][1] + $this->_topOffset,
- $points[1][0] + $this->_leftOffset,
- $points[1][1] + $this->_topOffset,
- $points[2][0] + $this->_leftOffset + cos(-$orientation),
- $points[2][1] + $this->_topOffset - sin($orientation),
- $points[3][0] + $this->_leftOffset + cos(-$orientation),
- $points[3][1] + $this->_topOffset - sin($orientation),
- );
- $newPoints = implode(' ', $newPoints);
- $attributes['points'] = $newPoints;
- $attributes['fill'] = $color;
- $this->_appendRootElement('polygon', $attributes);
- }
- /**
- * Draw a polygon in the svg resource
- *
- * @param string $text
- * @param float $size
- * @param array $position
- * @param string $font
- * @param integer $color
- * @param string $alignment
- * @param float $orientation
- */
- protected function _drawText($text, $size, $position, $font, $color, $alignment = 'center', $orientation = 0)
- {
- $color = 'rgb(' . implode(', ', array(($color & 0xFF0000) >> 16,
- ($color & 0x00FF00) >> 8,
- ($color & 0x0000FF))) . ')';
- $attributes['x'] = $position[0] + $this->_leftOffset;
- $attributes['y'] = $position[1] + $this->_topOffset;
- //$attributes['font-family'] = $font;
- $attributes['color'] = $color;
- $attributes['font-size'] = $size * 1.2;
- switch ($alignment) {
- case 'left':
- $textAnchor = 'start';
- break;
- case 'right':
- $textAnchor = 'end';
- break;
- case 'center':
- default:
- $textAnchor = 'middle';
- }
- $attributes['style'] = 'text-anchor: ' . $textAnchor;
- $attributes['transform'] = 'rotate('
- . (- $orientation)
- . ', '
- . ($position[0] + $this->_leftOffset)
- . ', ' . ($position[1] + $this->_topOffset)
- . ')';
- $this->_appendRootElement('text', $attributes, $text);
- }
- }