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authorChris Buechler <cmb@pfsense.org>2011-01-25 05:20:28 -0500
committerChris Buechler <cmb@pfsense.org>2011-01-25 05:21:06 -0500
commit7af18d10dc23084ae8390241c2e9951d530248f7 (patch)
treebba85a3958c7c11a8ce0bc8d6b0addad3a24c2f1 /config/archive/dspam/pear/Image/Canvas/SVG.php
parentdc3d5f22067dd659e4e8bd407e0745f78769fc85 (diff)
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Diffstat (limited to 'config/archive/dspam/pear/Image/Canvas/SVG.php')
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+<?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">';
+ }
+
+}
+
+?> \ No newline at end of file