diff options
Diffstat (limited to 'config/archive/dspam/pear/Image/Canvas/SVG.php')
| -rw-r--r-- | config/archive/dspam/pear/Image/Canvas/SVG.php | 918 |
1 files changed, 918 insertions, 0 deletions
diff --git a/config/archive/dspam/pear/Image/Canvas/SVG.php b/config/archive/dspam/pear/Image/Canvas/SVG.php new file mode 100644 index 00000000..3fed62ba --- /dev/null +++ b/config/archive/dspam/pear/Image/Canvas/SVG.php @@ -0,0 +1,918 @@ +<?php + +/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */ + +/** + * Class for handling output in SVG format. + * + * LICENSE: This library is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation; either version 2.1 of the License, or (at your + * option) any later version. This library is distributed in the hope that it + * will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser + * General Public License for more details. You should have received a copy of + * the GNU Lesser General Public License along with this library; if not, write + * to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + * 02111-1307 USA + * + * @category Images + * @package Image_Canvas + * @author Jesper Veggerby <pear.nosey@veggerby.dk> + * @copyright Copyright (C) 2003, 2004 Jesper Veggerby Hansen + * @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1 + * @version CVS: $Id$ + * @link http://pear.php.net/pepr/pepr-proposal-show.php?id=212 + */ + +/** + * Include file Image/Canvas.php + */ +require_once 'Image/Canvas.php'; + +/** + * Include file Image/Canvas/Color.php + */ +require_once 'Image/Canvas/Color.php'; + +/** + * SVG Canvas class. + * + * @category Images + * @package Image_Canvas + * @author Jesper Veggerby <pear.nosey@veggerby.dk> + * @copyright Copyright (C) 2003, 2004 Jesper Veggerby Hansen + * @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1 + * @version Release: @package_version@ + * @link http://pear.php.net/pepr/pepr-proposal-show.php?id=212 + */ +class Image_Canvas_SVG extends Image_Canvas +{ + + /** + * The SVG elements + * @var string + * @access private + */ + var $_elements = ''; + + /** + * The SVG defines + * @var string + * @access private + */ + var $_defs = ''; + + /** + * The current indention level + * @var string + * @access private + */ + var $_indent = ' '; + + /** + * A unieuq id counter + * @var int + * @access private + */ + var $_id = 1; + + /** + * The current group ids + * @var array + * @access private + */ + var $_groupIDs = array(); + + /** + * Create the SVG canvas. + * + * Parameters available: + * + * 'width' The width of the graph + * + * 'height' The height of the graph + * + * @param array $param Parameter array + */ + function Image_Canvas_SVG($param) + { + parent::Image_Canvas($param); + $this->_reset(); + } + + /** + * Add a SVG "element" to the output + * + * @param string $element The element + * @access private + */ + function _addElement($element, $params = array()) { + $elementdata = $this->_indent . $element . "\n"; + + if (isset($params['url'])) { + $url = $params['url']; + $target = (isset($params['target']) ? $params['target'] : false); + $alt = (isset($params['alt']) ? $params['alt'] : false); + + $tags = ''; + if (isset($params['htmltags'])) { + foreach ($params['htmltags'] as $key => $value) { + $tags .= ' '; + if (strpos($value, '"') >= 0) { + $tags .= $key . '=\'' . $value . '\''; + } else { + $tags .= $key . '="' . $value . '"'; + } + } + } + + $elementdata = + $this->_indent . '<a xlink:href="' . $url . '"' . ($target ? ' target="' . $target . '"' : '') . '>' . "\n" . + ' ' . $elementdata . + $this->_indent . '</a>' . "\n"; + } + + + $this->_elements .= $elementdata; + } + + /** + * Add a SVG "define" to the output + * + * @param string $def The define + * @access private + */ + function _addDefine($def) { + $this->_defs .= ' ' . $def . "\n"; + } + + /** + * Get the color index for the RGB color + * + * @param int $color The color + * @return int A SVG compatible color + * @access private + */ + function _color($color = false) + { + if ($color === false) { + return 'transparent'; + } else { + $color = Image_Canvas_Color::color2RGB($color); + return 'rgb(' . $color[0] . ',' . $color[1] . ',' . $color[2] . ')'; + } + } + + /** + * Get the opacity for the RGB color + * + * @param int $color The color + * @return int A SVG compatible opacity value + * @access private + */ + function _opacity($color = false) + { + if ($color === false) { + return false; + } else { + $color = Image_Canvas_Color::color2RGB($color); + if ($color[3] != 255) { + return sprintf('%0.1f', $color[3]/255); + } else { + return false; + } + } + } + + /** + * Get the SVG applicable linestyle + * + * @param mixed $lineStyle The line style to return, false if the one + * explicitly set + * @return mixed A SVG compatible linestyle + * @access private + */ + function _getLineStyle($lineStyle = false) + { + $result = ''; + if ($lineStyle === false) { + $lineStyle = $this->_lineStyle; + } + + // TODO Linestyles (i.e. fx. dotted) does not work + + if (($lineStyle != 'transparent') && ($lineStyle !== false)) { + $result = 'stroke-width:' . $this->_thickness . ';'; + $result .= 'stroke:' .$this->_color($lineStyle) . ';'; + if ($opacity = $this->_opacity($lineStyle)) { + $result .= 'stroke-opacity:' . $opacity . ';'; + } + } + return $result; + } + + /** + * Get the SVG applicable fillstyle + * + * @param mixed $fillStyle The fillstyle to return, false if the one + * explicitly set + * @return mixed A SVG compatible fillstyle + * @access private + */ + function _getFillStyle($fillStyle = false) + { + $result = ''; + if ($fillStyle === false) { + $fillStyle = $this->_fillStyle; + } + + if (is_array($fillStyle)) { + if ($fillStyle['type'] == 'gradient') { + $id = 'gradient_' . ($this->_id++); + $startColor = $this->_color($fillStyle['start']); + $endColor = $this->_color($fillStyle['end']); + $startOpacity = $this->_opacity($fillStyle['start']); + $endOpacity = $this->_opacity($fillStyle['end']); + + switch ($fillStyle['direction']) { + case 'horizontal': + case 'horizontal_mirror': + $x1 = '0%'; + $y1 = '0%'; + $x2 = '100%'; + $y2 = '0%'; + break; + + case 'vertical': + case 'vertical_mirror': + $x1 = '0%'; + $y1 = '100%'; + $x2 = '0%'; + $y2 = '0%'; + break; + + case 'diagonal_tl_br': + $x1 = '0%'; + $y1 = '0%'; + $x2 = '100%'; + $y2 = '100%'; + break; + + case 'diagonal_bl_tr': + $x1 = '0%'; + $y1 = '100%'; + $x2 = '100%'; + $y2 = '0%'; + break; + + case 'radial': + $cx = '50%'; + $cy = '50%'; + $r = '100%'; + $fx = '50%'; + $fy = '50%'; + break; + + } + + if ($fillStyle['direction'] == 'radial') { + $this->_addDefine( + '<radialGradient id="' . $id . '" cx="' . + $cx .'" cy="' . $cy .'" r="' . $r .'" fx="' . + $fx .'" fy="' . $fy .'">' + ); + $this->_addDefine( + ' <stop offset="0%" style="stop-color:' . + $startColor. ';' . ($startOpacity ? 'stop-opacity:' . + $startOpacity . ';' : ''). '"/>' + ); + $this->_addDefine( + ' <stop offset="100%" style="stop-color:' . + $endColor. ';' . ($endOpacity ? 'stop-opacity:' . + $endOpacity . ';' : ''). '"/>' + ); + $this->_addDefine( + '</radialGradient>' + ); + } elseif (($fillStyle['direction'] == 'vertical_mirror') || + ($fillStyle['direction'] == 'horizontal_mirror')) + { + $this->_addDefine( + '<linearGradient id="' . $id . '" x1="' . + $x1 .'" y1="' . $y1 .'" x2="' . $x2 .'" y2="' . + $y2 .'">' + ); + $this->_addDefine( + ' <stop offset="0%" style="stop-color:' . + $startColor. ';' . ($startOpacity ? 'stop-opacity:' . + $startOpacity . ';' : ''). '"/>' + ); + $this->_addDefine( + ' <stop offset="50%" style="stop-color:' . + $endColor. ';' . ($endOpacity ? 'stop-opacity:' . + $endOpacity . ';' : ''). '"/>' + ); + $this->_addDefine( + ' <stop offset="100%" style="stop-color:' . + $startColor. ';' . ($startOpacity ? 'stop-opacity:' . + $startOpacity . ';' : ''). '"/>' + ); + $this->_addDefine( + '</linearGradient>' + ); + } else { + $this->_addDefine( + '<linearGradient id="' . $id . '" x1="' . + $x1 .'" y1="' . $y1 .'" x2="' . $x2 .'" y2="' . + $y2 .'">' + ); + $this->_addDefine( + ' <stop offset="0%" style="stop-color:' . + $startColor. ';' . ($startOpacity ? 'stop-opacity:' . + $startOpacity . ';' : ''). '"/>' + ); + $this->_addDefine( + ' <stop offset="100%" style="stop-color:' . + $endColor. ';' . ($endOpacity ? 'stop-opacity:' . + $endOpacity . ';' : ''). '"/>' + ); + $this->_addDefine( + '</linearGradient>' + ); + } + + return 'fill:url(#' . $id . ');'; + } + } elseif (($fillStyle != 'transparent') && ($fillStyle !== false)) { + $result = 'fill:' . $this->_color($fillStyle) . ';'; + if ($opacity = $this->_opacity($fillStyle)) { + $result .= 'fill-opacity:' . $opacity . ';'; + } + return $result; + } else { + return 'fill:none;'; + } + } + + /** + * Sets an image that should be used for filling + * + * @param string $filename The filename of the image to fill with + */ + function setFillImage($filename) + { + } + + /** + * Sets a gradient fill + * + * @param array $gradient Gradient fill options + */ + function setGradientFill($gradient) + { + $this->_fillStyle = $gradient; + $this->_fillStyle['type'] = 'gradient'; + } + + /** + * Sets the font options. + * + * The $font array may have the following entries: + * 'type' = 'ttf' (TrueType) or omitted for default<br> + * If 'type' = 'ttf' then the following can be specified<br> + * 'size' = size in pixels<br> + * 'angle' = the angle with which to write the text + * 'file' = the .ttf file (either the basename, filename or full path) + * + * @param array $font The font options. + */ + function setFont($fontOptions) + { + parent::setFont($fontOptions); + if (!isset($this->_font['size'])) { + $this->_font['size'] = 10; + } + } + + /** + * Parameter array: + * 'x0': int X start point + * 'y0': int Y start point + * 'x1': int X end point + * 'y1': int Y end point + * 'color': mixed [optional] The line color + * @param array $params Parameter array + */ + function line($params) + { + $x0 = $this->_getX($params['x0']); + $y0 = $this->_getY($params['y0']); + $x1 = $this->_getX($params['x1']); + $y1 = $this->_getY($params['y1']); + $color = (isset($params['color']) ? $params['color'] : false); + + $style = $this->_getLineStyle($color) . $this->_getFillStyle('transparent'); + if ($style != '') { + $this->_addElement( + '<line ' . + 'x1="' . round($x0) . '" ' . + 'y1="' . round($y0) . '" ' . + 'x2="' . round($x1) . '" ' . + 'y2="' . round($y1) . '" ' . + 'style="' . $style . '"' . + '/>', + $params + ); + } + parent::line($params); + } + + /** + * Parameter array: + * 'connect': bool [optional] Specifies whether the start point should be + * connected to the endpoint (closed polygon) or not (connected line) + * 'fill': mixed [optional] The fill color + * 'line': mixed [optional] The line color + * @param array $params Parameter array + */ + function polygon($params = array()) + { + $connectEnds = (isset($params['connect']) ? $params['connect'] : false); + $fillColor = (isset($params['fill']) ? $params['line'] : false); + $lineColor = (isset($params['line']) ? $params['line'] : false); + + if (!$connectEnds) { + $fillColor = 'transparent'; + } + $style = $this->_getLineStyle($lineColor) . $this->_getFillStyle($fillColor); + + $first = true; + $spline = false; + $lastpoint = false; + foreach($this->_polygon as $point) { + if ($first) { + $points = 'M'; + } elseif (!$spline) { + $points .= ' L'; + } + + if (($spline) && ($lastpoint !== false)) { + $points .= ' ' .round($lastpoint['P1X']) . ',' . round($lastpoint['P1Y']) . ' ' . + round($lastpoint['P2X']) . ',' . round($lastpoint['P2Y']); + } + + $points .= ' ' . round($point['X']) . ',' . round($point['Y']); + + if ((isset($point['P1X'])) && (isset($point['P1Y'])) && + (isset($point['P2X'])) && (isset($point['P2Y']))) + { + if (($first) || (!$spline)) { + $points .= ' C'; + } + $lastpoint = $point; + $spline = true; + } else { + $spline = false; + } + $first = false; + } + if ($connectEnds) { + $point .= ' Z'; + } + $this->_addElement( + '<path ' . + 'd="' . $points . '" ' . + 'style="' . $style . '"' . + '/>', + $params + ); + + parent::polygon($params); + } + + /** + * Draw a rectangle + * + * Parameter array: + * 'x0': int X start point + * 'y0': int Y start point + * 'x1': int X end point + * 'y1': int Y end point + * 'fill': mixed [optional] The fill color + * 'line': mixed [optional] The line color + * @param array $params Parameter array + */ + function rectangle($params) + { + $x0 = min($this->_getX($params['x0']), $this->_getX($params['x1'])); + $y0 = min($this->_getY($params['y0']), $this->_getY($params['y1'])); + $x1 = max($this->_getX($params['x0']), $this->_getX($params['x1'])); + $y1 = max($this->_getY($params['y0']), $this->_getY($params['y1'])); + $fillColor = (isset($params['fill']) ? $params['line'] : false); + $lineColor = (isset($params['line']) ? $params['line'] : false); + + $style = $this->_getLineStyle($lineColor) . $this->_getFillStyle($fillColor); + if ($style != '') { + $this->_addElement( + '<rect ' . + 'x="' . round($x0) . '" ' . + 'y="' . round($y0) . '" ' . + 'width="' . round(abs($x1 - $x0)) . '" ' . + 'height="' . round(abs($y1 - $y0)) . '" ' . + 'style="' . $style . '"' . + '/>', + $params + ); + } + parent::rectangle($params); + } + + /** + * Draw an ellipse + * + * Parameter array: + * 'x': int X center point + * 'y': int Y center point + * 'rx': int X radius + * 'ry': int Y radius + * 'fill': mixed [optional] The fill color + * 'line': mixed [optional] The line color + * @param array $params Parameter array + */ + function ellipse($params) + { + $x = $this->_getX($params['x']); + $y = $this->_getY($params['y']); + $rx = $this->_getX($params['rx']); + $ry = $this->_getY($params['ry']); + $fillColor = (isset($params['fill']) ? $params['line'] : false); + $lineColor = (isset($params['line']) ? $params['line'] : false); + + $style = $this->_getLineStyle($lineColor) . $this->_getFillStyle($fillColor); + if ($style != '') { + $this->_addElement( + '<ellipse ' . + 'cx="' . round($x) . '" ' . + 'cy="' . round($y) . '" ' . + 'rx="' . round($rx) . '" ' . + 'ry="' . round($ry) . '" ' . + 'style="' . $style . '"' . + '/>', + $params + ); + } + parent::ellipse($params); + } + + /** + * Draw a pie slice + * + * Parameter array: + * 'x': int X center point + * 'y': int Y center point + * 'rx': int X radius + * 'ry': int Y radius + * 'v1': int The starting angle (in degrees) + * 'v2': int The end angle (in degrees) + * 'srx': int [optional] Starting X-radius of the pie slice (i.e. for a doughnut) + * 'sry': int [optional] Starting Y-radius of the pie slice (i.e. for a doughnut) + * 'fill': mixed [optional] The fill color + * 'line': mixed [optional] The line color + * @param array $params Parameter array + */ + function pieslice($params) + { + $x = $this->_getX($params['x']); + $y = $this->_getY($params['y']); + $rx = $this->_getX($params['rx']); + $ry = $this->_getY($params['ry']); + $v1 = $this->_getX($params['v1']); + $v2 = $this->_getY($params['v2']); + $srx = (isset($params['srx']) ? $this->_getX($params['srx']) : false); + $sry = (isset($params['sry']) ? $this->_getX($params['sry']) : false); + $fillColor = (isset($params['fill']) ? $params['line'] : false); + $lineColor = (isset($params['line']) ? $params['line'] : false); + + $dv = max($v2, $v1) - min($v2, $v1); + if ($dv >= 360) { + $this->ellipse($params); + } + else { + $style = $this->_getLineStyle($lineColor) . $this->_getFillStyle($fillColor); + if ($style != '') { + $x1 = ($x + $rx * cos(deg2rad(min($v1, $v2) % 360))); + $y1 = ($y + $ry * sin(deg2rad(min($v1, $v2) % 360))); + $x2 = ($x + $rx * cos(deg2rad(max($v1, $v2) % 360))); + $y2 = ($y + $ry * sin(deg2rad(max($v1, $v2) % 360))); + $this->_addElement( + '<path d="' . + 'M' . round($x) . ',' . round($y) . ' ' . + 'L' . round($x1) . ',' . round($y1) . ' ' . + 'A' . round($rx) . ',' . round($ry) . ($dv > 180 ? ' 0 1,1 ' : ' 0 0,1 ') . + round($x2) . ',' . round($y2) . ' ' . + 'Z" ' . + 'style="' . $style . '"' . + '/>', + $params + ); + } + + parent::pieslice($params); + } + } + + /** + * Get the width of a text, + * + * @param string $text The text to get the width of + * @return int The width of the text + */ + function textWidth($text) + { + if ((isset($this->_font['vertical'])) && ($this->_font['vertical'])) { + return $this->_font['size']; + } else { + return round($this->_font['size'] * 0.7 * strlen($text)); + } + } + + /** + * Get the height of a text, + * + * @param string $text The text to get the height of + * @return int The height of the text + */ + function textHeight($text) + { + if ((isset($this->_font['vertical'])) && ($this->_font['vertical'])) { + return round($this->_font['size'] * 0.7 * strlen($text)); + } else { + return $this->_font['size']; + } + } + + /** + * Writes text + * + * Parameter array: + * 'x': int X-point of text + * 'y': int Y-point of text + * 'text': string The text to add + * 'alignment': array [optional] Alignment + * 'color': mixed [optional] The color of the text + */ + function addText($params) + { + $x = $this->_getX($params['x']); + $y = $this->_getY($params['y']); + $text = $params['text']; + $color = (isset($params['color']) ? $params['color'] : false); + $alignment = (isset($params['alignment']) ? $params['alignment'] : false); + + $textHeight = $this->textHeight($text); + + if (!is_array($alignment)) { + $alignment = array('vertical' => 'top', 'horizontal' => 'left'); + } + + if (!isset($alignment['vertical'])) { + $alignment['vertical'] = 'top'; + } + + if (!isset($alignment['horizontal'])) { + $alignment['horizontal'] = 'left'; + } + + $align = ''; + + if ((isset($this->_font['vertical'])) && ($this->_font['vertical'])) { +// $align .= 'writing-mode: tb-rl;'; + + if ($alignment['vertical'] == 'bottom') { + $align .= 'text-anchor:end;'; + //$y = $y + $textHeight; + } elseif ($alignment['vertical'] == 'center') { + //$y = $y + ($textHeight / 2); + $align .= 'text-anchor:middle;'; + } + } else { + if ($alignment['horizontal'] == 'right') { + $align .= 'text-anchor:end;'; + } elseif ($alignment['horizontal'] == 'center') { + $align .= 'text-anchor:middle;'; + } + + if ($alignment['vertical'] == 'top') { + $y = $y + $textHeight; + } elseif ($alignment['vertical'] == 'center') { + $y = $y + ($textHeight / 2); + } + } + + if (($color === false) && (isset($this->_font['color']))) { + $color = $this->_font['color']; + } + + $textColor = $this->_color($color); + $textOpacity = $this->_opacity($color); + + $this->_addElement( + '<g transform="translate(' . round($x) . ', ' . round($y) . ')">' . "\n" . + $this->_indent . ' <text ' . + 'x="0" ' . + 'y="0" ' . + (isset($this->_font['angle']) && ($this->_font['angle'] > 0) ? + 'transform="rotate(' . $this->_font['angle'] . ')" ' : + '' + ) . + 'style="' . + (isset($this->_font['name']) ? + 'font-family:' . $this->_font['name'] . ';' : '') . + 'font-size:' . $this->_font['size'] . 'px;fill:' . + $textColor . ($textOpacity ? ';fill-opacity:' . + $textOpacity : + '' + ) . ';' . $align . '">' . + htmlspecialchars($text) . + '</text>' . "\n" . + $this->_indent . '</g>', + $params + ); + parent::addText($params); + } + + /** + * Overlay image + * + * Parameter array: + * 'x': int X-point of overlayed image + * 'y': int Y-point of overlayed image + * 'filename': string The filename of the image to overlay + * 'width': int [optional] The width of the overlayed image (resizing if possible) + * 'height': int [optional] The height of the overlayed image (resizing if possible) + * 'alignment': array [optional] Alignment + */ + function image($params) + { + $x = $this->_getX($params['x']); + $y = $this->_getY($params['y']); + $filename = $params['filename']; + + list($width, $height, $type, $attr) = getimagesize($filename); + $width = (isset($params['width']) ? $params['width'] : $width); + $height = (isset($params['height']) ? $params['height'] : $height); + $alignment = (isset($params['alignment']) ? $params['alignment'] : false); + + $file = fopen($filename, 'rb'); + $filedata = fread($file, filesize($filename)); + fclose($file); + + $data = 'data:' . image_type_to_mime_type($type) . ';base64,' . base64_encode($filedata); + $this->_addElement( + '<image xlink:href="' . $data . '" x="' . $x . '" y="' . $y . '"' . + ($width ? ' width="' . $width . '"' : '') . + ($height ? ' height="' . $height . '"' : '') . + ' preserveAspectRatio="none"/>', + $params + ); + parent::image($params); + } + + /** + * Start a group. + * + * What this does, depends on the canvas/format. + * + * @param string $name The name of the group + */ + function startGroup($name = false) + { + $name = strtolower(str_replace(' ', '_', $name)); + if (in_array($name, $this->_groupIDs)) { + $name .= $this->_id; + $this->_id++; + } + $this->_groupIDs[] = $name; + $this->_addElement('<g id="' . htmlspecialchars($name) . '">'); + $this->_indent .= ' '; + } + + /** + * End the "current" group. + * + * What this does, depends on the canvas/format. + */ + function endGroup() + { + $this->_indent = substr($this->_indent, 0, -4); + $this->_addElement('</g>'); + } + + /** + * Output the result of the canvas + * + * @param array $param Parameter array + */ + function show($param = false) + { + parent::show($param); + $output = '<?xml version="1.0" encoding="iso-8859-1"?>' . "\n" . + '<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.0//EN"' . "\n\t" . + ' "http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd">' . "\n" . + '<svg width="' . $this->_width . '" height="' . $this->_height . + '" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">' . "\n" . + ($this->_defs ? + ' <defs>' . "\n" . + $this->_defs . + ' </defs>' . "\n" : + '' + ) . + $this->_elements . + '</svg>'; + + header('Content-Type: image/svg+xml'); + header('Content-Disposition: inline; filename = "' . basename($_SERVER['PHP_SELF'], '.php') . '.svg"'); + print $output; + } + + /** + * Output the result of the canvas + * + * @param array $param Parameter array + */ + function save($param = false) + { + parent::save($param); + $output = '<?xml version="1.0" encoding="iso-8859-1"?>' . "\n" . + '<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.0//EN"' . "\n\t" . + ' "http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd">' . "\n" . + '<svg width="' . $this->_width . '" height="' . $this->_height . + '" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">' . "\n" . + ($this->_defs ? + ' <defs>' . "\n" . + $this->_defs . + ' </defs>' . "\n" : + '' + ) . + $this->_elements . + '</svg>'; + + $file = fopen($param['filename'], 'w+'); + fwrite($file, $output); + fclose($file); + } + + /** + * Set clipping to occur + * + * Parameter array: + * + * 'x0': int X point of Upper-left corner + * 'y0': int X point of Upper-left corner + * 'x1': int X point of lower-right corner + * 'y1': int Y point of lower-right corner + */ + function setClipping($params = false) + { + if ($params === false) { + $this->_addElement('</g>'); + } + else { + $group = "clipping_" . $this->_id; + $this->_id++; + $this->_addElement('<g clip-path="url(#' . $group . ')">'); + + $this->_addDefine('<clipPath id="' . $group . '">'); + $this->_addDefine(' <path d="' . + 'M' . $this->_getX($params['x0']) . ' ' . $this->_getY($params['y0']) . + ' H' . $this->_getX($params['x1']) . + ' V' . $this->_getY($params['y1']) . + ' H' . $this->_getX($params['x0']) . + ' Z"/>'); + $this->_addDefine('</clipPath>'); + } + } + + /** + * Get a canvas specific HTML tag. + * + * This method implicitly saves the canvas to the filename in the + * filesystem path specified and parses it as URL specified by URL path + * + * Parameter array: + * 'filename': string + * 'filepath': string Path to the file on the file system. Remember the final slash + * 'urlpath': string Path to the file available through an URL. Remember the final slash + * 'width': int The width in pixels + * 'height': int The height in pixels + */ + function toHtml($params) + { + parent::toHtml($params); + return '<embed src="' . $params['urlpath'] . $params['filename'] . '" width=' . $params['width'] . ' height=' . $params['height'] . ' type="image/svg+xml">'; + } + +} + +?>
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