* @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 * @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 . '' . "\n" . ' ' . $elementdata . $this->_indent . '' . "\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( '' ); $this->_addDefine( ' ' ); $this->_addDefine( ' ' ); $this->_addDefine( '' ); } elseif (($fillStyle['direction'] == 'vertical_mirror') || ($fillStyle['direction'] == 'horizontal_mirror')) { $this->_addDefine( '' ); $this->_addDefine( ' ' ); $this->_addDefine( ' ' ); $this->_addDefine( ' ' ); $this->_addDefine( '' ); } else { $this->_addDefine( '' ); $this->_addDefine( ' ' ); $this->_addDefine( ' ' ); $this->_addDefine( '' ); } 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
* If 'type' = 'ttf' then the following can be specified
* 'size' = size in pixels
* '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( '', $params ); } parent::line($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( '', $params ); parent::polygon($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( '', $params ); } parent::rectangle($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( '', $params ); } parent::ellipse($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( '', $params ); } parent::pieslice($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( '' . "\n" . $this->_indent . ' _font['angle']) && ($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) . '' . "\n" . $this->_indent . '', $params ); parent::addText($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( '', $params ); parent::image($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(''); $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(''); } /** * Output the result of the canvas * * @param array $param Parameter array */ function show($param = false) { parent::show($param); $output = '' . "\n" . '' . "\n" . ''; header('Content-Type: image/svg+xml'); header('Content-Disposition: inline; filename = "' . basename($_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 = '' . "\n" . '' . "\n" . ''; $file = fopen($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(''); } else { $group = "clipping_" . $this->_id; $this->_id++; $this->_addElement(''); $this->_addDefine(''); $this->_addDefine(' '); $this->_addDefine(''); } } /** * Get a canvas specific HTML tag. * * This method implicitly saves the canvas to the filename in the * filesystem path specified and parses it as URL specified by URL path * * Parameter array: * 'filename': string * 'filepath': string Path to the file on the file system. Remember the final slash * 'urlpath': string Path to the file available through an URL. Remember the final slash * 'width': int The width in pixels * 'height': int The height in pixels */ function toHtml($params) { parent::toHtml($params); return ''; } } ?>