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Diffstat (limited to 'config/dspam/pear/Image/Canvas/PDF.php')
| -rw-r--r-- | config/dspam/pear/Image/Canvas/PDF.php | 1007 |
1 files changed, 1007 insertions, 0 deletions
diff --git a/config/dspam/pear/Image/Canvas/PDF.php b/config/dspam/pear/Image/Canvas/PDF.php new file mode 100644 index 00000000..180263cb --- /dev/null +++ b/config/dspam/pear/Image/Canvas/PDF.php @@ -0,0 +1,1007 @@ +<?php + +/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */ + +/** + * Class for handling output in PDF format. + * + * Requires PHP extension PDFlib + * + * PHP versions 4 and 5 + * + * 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'; + +/** + * PDF 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_PDF extends Image_Canvas +{ + + /** + * The PDF document + * @var resource + * @access private + */ + var $_pdf; + + /** + * The major version of PDFlib + * @var int + * @access private + */ + var $_pdflib; + + /** + * The font + * @var mixed + * @access private + */ + var $_pdfFont = false; + + /** + * The width of the page + * @var int + * @access private + */ + var $_pageWidth; + + /** + * The height of the page + * @var int + * @access private + */ + var $_pageHeight; + + /** + * Create the PDF canvas. + * + * Parameters available: + * + * 'page' Specify the page/paper format for the graph's page, available + * formats are: A0, A1, A2, A3, A4, A5, A6, B5, letter, legal, ledger, + * 11x17, cd_front, inlay, inlay_nosides + * + * 'align' Alignment of the graph on the page, available options are: + * topleft, topcenter, topright, leftcenter, center, rightcenter, + * leftbottom, centerbottom, rightbottom + * + * 'orientation' Specifies the paper orientation, default is 'portrait' and + * 'landscape' is also supported. + * + * 'creator' The creator tag of the PDF/graph + * + * 'author' The author tag of the PDF/graph + * + * 'title' The title tag of the PDF/graph + * + * 'width' The width of the graph on the page + * + * 'height' The height of the graph on the page + * + * 'left' The left offset of the graph on the page + * + * 'top' The top offset of the graph on the page + * + * 'filename' The PDF file to open/add page to, using 'filename' requires + * the commercial version of PDFlib (http://www.pdflib.com/), this has for + * obvious ($ 450) reasons not been tested + * + * 'pdf' An existing PDFlib PDF document to add the page to + * + * 'add_page' (true/false) Used together with 'pdf', to specify whether the + * canvas should add a new graph page (true) or create the graph on the + * current page (false), default is 'true' + * + * The 'page' and 'width' & 'height' can be mutually omitted, if 'page' is + * omitted the page is created using dimensions of width x height, and if + * width and height are omitted the page dimensions are used for the graph. + * + * If 'pdf' is specified, 'filename', 'creator', 'author' and 'title' has no + * effect. + * + * 'left' and 'top' are overridden by 'align' + * + * It is required either to specify 'width' & 'height' or 'page'. + * + * The PDF format/PDFlib has some limitations on the capabilities, which + * means some functionality available using other canvass (fx. alpha + * blending and gradient fills) are not supported with PDF (see Canvas.txt + * in the docs/ folder for further details) + * + * @param array $param Parameter array + */ + function Image_Canvas_PDF($param) + { + if (isset($param['page'])) { + switch (strtoupper($param['page'])) { + case 'A0': + $this->_pageWidth = 2380; + $this->_pageHeight = 3368; + break; + + case 'A1': + $this->_pageWidth = 1684; + $this->_pageHeight = 2380; + break; + + case 'A2': + $this->_pageWidth = 1190; + $this->_pageHeight = 1684; + break; + + case 'A3': + $this->_pageWidth = 842; + $this->_pageHeight = 1190; + break; + + case 'A4': + $this->_pageWidth = 595; + $this->_pageHeight = 842; + break; + + case 'A5': + $this->_pageWidth = 421; + $this->_pageHeight = 595; + break; + + case 'A6': + $this->_pageWidth = 297; + $this->_pageHeight = 421; + break; + + case 'B5': + $this->_pageWidth = 501; + $this->_pageHeight = 709; + break; + + case 'LETTER': + $this->_pageWidth = 612; + $this->_pageHeight = 792; + break; + + case 'LEGAL': + $this->_pageWidth = 612; + $this->_pageHeight = 1008; + break; + + case 'LEDGER': + $this->_pageWidth = 1224; + $this->_pageHeight = 792; + break; + + case '11X17': + $this->_pageWidth = 792; + $this->_pageHeight = 1224; + break; + + case 'CD_FRONT': + $this->_pageWidth = 337; + $this->_pageHeight = 337; + break; + + case 'INLAY': + $this->_pageWidth = 425; + $this->_pageHeight = 332; + break; + + case 'INLAY_NOSIDES': + $this->_pageWidth = 390; + $this->_pageHeight = 332; + break; + } + } + + if ((isset($param['orientation'])) && (strtoupper($param['orientation']) == 'LANDSCAPE')) { + $w = $this->_pageWidth; + $this->_pageWidth = $this->_pageHeight; + $this->_pageHeight = $w; + } + + parent::Image_Canvas($param); + + if (!$this->_pageWidth) { + $this->_pageWidth = $this->_width; + } elseif (!$this->_width) { + $this->_width = $this->_pageWidth; + } + + if (!$this->_pageHeight) { + $this->_pageHeight = $this->_height; + } elseif (!$this->_height) { + $this->_height = $this->_pageHeight; + } + + $this->_width = min($this->_width, $this->_pageWidth); + $this->_height = min($this->_height, $this->_pageHeight); + + if ((isset($param['align'])) && + (($this->_width != $this->_pageWidth) || ($this->_height != $this->_pageHeight)) + ) { + switch (strtoupper($param['align'])) { + case 'TOPLEFT': + $this->_top = 0; + $this->_left = 0; + break; + + case 'TOPCENTER': + $this->_top = 0; + $this->_left = ($this->_pageWidth - $this->_width) / 2; + break; + + case 'TOPRIGHT': + $this->_top = 0; + $this->_left = $this->_pageWidth - $this->_width; + break; + + case 'LEFTCENTER': + $this->_top = ($this->_pageHeight - $this->_height) / 2; + $this->_left = 0; + break; + + case 'CENTER': + $this->_top = ($this->_pageHeight - $this->_height) / 2; + $this->_left = ($this->_pageWidth - $this->_width) / 2; + break; + + case 'RIGHTCENTER': + $this->_top = ($this->_pageHeight - $this->_height) / 2; + $this->_left = $this->_pageWidth - $this->_width; + break; + + case 'LEFTBOTTOM': + $this->_top = $this->_pageHeight - $this->_height; + $this->_left = 0; + break; + + case 'CENTERBOTTOM': + $this->_top = $this->_pageHeight - $this->_height; + $this->_left = ($this->_pageWidth - $this->_width) / 2; + break; + + case 'RIGHTBOTTOM': + $this->_top = $this->_pageHeight - $this->_height; + $this->_left = $this->_pageWidth - $this->_width; + break; + } + } + + $this->_pdflib = $this->_version(); + + $addPage = true; + if ((isset($param['pdf'])) && (is_resource($param['pdf']))) { + $this->_pdf =& $param['pdf']; + if ((isset($param['add_page'])) && ($param['add_page'] === false)) { + $addPage = false; + } + } else { + $this->_pdf = pdf_new(); + + if (isset($param['filename'])) { + pdf_open_file($this->_pdf, $param['filename']); + } else { + pdf_open_file($this->_pdf, ''); + } + + pdf_set_parameter($this->_pdf, 'warning', 'true'); + + pdf_set_info($this->_pdf, 'Creator', (isset($param['creator']) ? $param['creator'] : 'PEAR::Image_Canvas')); + pdf_set_info($this->_pdf, 'Author', (isset($param['author']) ? $param['author'] : 'Jesper Veggerby')); + pdf_set_info($this->_pdf, 'Title', (isset($param['title']) ? $param['title'] : 'Image_Canvas')); + } + + if ($addPage) { + pdf_begin_page($this->_pdf, $this->_pageWidth, $this->_pageHeight); + } + $this->_reset(); + } + + /** + * Get the x-point from the relative to absolute coordinates + * + * @param float $x The relative x-coordinate (in percentage of total width) + * @return float The x-coordinate as applied to the canvas + * @access private + */ + function _getX($x) + { + return $this->_left + $x; + } + + /** + * Get the y-point from the relative to absolute coordinates + * + * @param float $y The relative y-coordinate (in percentage of total width) + * @return float The y-coordinate as applied to the canvas + * @access private + */ + function _getY($y) + { + return $this->_pageHeight - ($this->_top + $y); + } + + /** + * Get the color index for the RGB color + * + * @param int $color The color + * @return int The GD image index of the color + * @access private + */ + function _color($color = false) + { + if (($color === false) || ($color === 'opague') || ($color === 'transparent')) { + return false; + } else { + $color = Image_Canvas_Color::color2RGB($color); + $color[0] = $color[0]/255; + $color[1] = $color[1]/255; + $color[2] = $color[2]/255; + return $color; + } + } + + /** + * Get the PDF linestyle + * + * @param mixed $lineStyle The line style to return, false if the one + * explicitly set + * @return bool True if set (so that a line should be drawn) + * @access private + */ + function _setLineStyle($lineStyle = false) + { + if ($lineStyle === false) { + $lineStyle = $this->_lineStyle; + } + + if (($lineStyle == 'transparent') || ($lineStyle === false)) { + return false; + } + + if (is_array($lineStyle)) { + // TODO Implement linestyles in PDFlib (using pdf_setcolor(.., 'pattern'...); ? + reset($lineStyle); + $lineStyle = current($lineStyle); + } + + $color = $this->_color($lineStyle); + + pdf_setlinewidth($this->_pdf, $this->_thickness); + if ($this->_pdflib < 4) { + pdf_setrgbcolor_stroke($this->_pdf, $color[0]/255, $color[1]/255, $color[2]/255); + } else { + pdf_setcolor($this->_pdf, 'stroke', 'rgb', $color[0], $color[1], $color[2], 0); + } + return true; + } + + /** + * Set the PDF fill style + * + * @param mixed $fillStyle The fillstyle to return, false if the one + * explicitly set + * @return bool True if set (so that a line should be drawn) + * @access private + */ + function _setFillStyle($fillStyle = false) + { + if ($fillStyle === false) { + $fillStyle = $this->_fillStyle; + } + + if (($fillStyle == 'transparent') || ($fillStyle === false)) { + return false; + } + + $color = $this->_color($fillStyle); + + if ($this->_pdflib < 4) { + pdf_setrgbcolor_fill($this->_pdf, $color[0]/255, $color[1]/255, $color[2]/255); + } else { + pdf_setcolor($this->_pdf, 'fill', 'rgb', $color[0], $color[1], $color[2], 0); + } + return true; + } + + /** + * Set the PDF font + * + * @access private + */ + function _setFont() + { + $this->_pdfFont = false; + if (isset($this->_font['name'])) { + pdf_set_parameter($this->_pdf, 'FontOutline', $this->_font['name'] . '=' . $this->_font['file']); + $this->_pdfFont = pdf_findfont($this->_pdf, $this->_font['name'], $this->_font['encoding'], 1); + + if ($this->_pdfFont) { + pdf_setfont($this->_pdf, $this->_pdfFont, $this->_font['size']); + $this->_setFillStyle($this->_font['color']); + } + } else { + $this->_setFillStyle('black'); + } + } + + /** + * Sets an image that should be used for filling. + * + * Image filling is not supported with PDF, filling 'transparent' + * + * @param string $filename The filename of the image to fill with + */ + function setFillImage($filename) + { + $this->_fillStyle = 'transparent'; + } + + /** + * Sets a gradient fill + * + * Gradient filling is not supported with PDF, end color used as solid fill. + * + * @param array $gradient Gradient fill options + */ + function setGradientFill($gradient) + { + $this->_fillStyle = $gradient['end']; + } + + /** + * Sets the font options. + * + * The $font array may have the following entries: + * + * 'ttf' = the .ttf file (either the basename, filename or full path) + * If 'ttf' is specified, then the following can be specified + * + * 'size' = size in pixels + * + * 'angle' = the angle with which to write the text + * + * @param array $font The font options. + */ + function setFont($fontOptions) + { + parent::setFont($fontOptions); + + if (!isset($this->_font['size'])) { + $this->_font['size'] = 12; + } + + if (!isset($this->_font['encoding'])) { + $this->_font['encoding'] = 'winansi'; + } + + if (!isset($this->_font['color'])) { + $this->_font['color'] = 'black'; + } + } + + /** + * Resets the canvas. + * + * Includes fillstyle, linestyle, thickness and polygon + * + * @access private + */ + function _reset() + { + pdf_initgraphics($this->_pdf); + parent::_reset(); + } + + /** + * Draw a line + * + * 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) + { + $color = (isset($params['color']) ? $params['color'] : false); + if ($this->_setLineStyle($color)) { + pdf_moveto($this->_pdf, $this->_getX($params['x0']), $this->_getY($params['y0'])); + pdf_lineto($this->_pdf, $this->_getX($params['x1']), $this->_getY($params['x1'])); + pdf_stroke($this->_pdf); + } + parent::line($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); + + $line = $this->_setLineStyle($lineColor); + $fill = false; + if ($connectEnds) { + $fill = $this->_setFillStyle($fillColor); + } + + $first = true; + foreach ($this->_polygon as $point) { + if ($first === true) { + pdf_moveto($this->_pdf, $point['X'], $point['Y']); + $first = $point; + } else { + if (isset($last['P1X'])) { + pdf_curveto($this->_pdf, + $last['P1X'], + $last['P1Y'], + $last['P2X'], + $last['P2Y'], + $point['X'], + $point['Y'] + ); + } else { + pdf_lineto($this->_pdf, + $point['X'], + $point['Y'] + ); + } + } + $last = $point; + } + + if ($connectEnds) { + if (isset($last['P1X'])) { + pdf_curveto($this->_pdf, + $last['P1X'], + $last['P1Y'], + $last['P2X'], + $last['P2Y'], + $first['X'], + $first['Y'] + ); + } else { + pdf_lineto($this->_pdf, + $first['X'], + $first['Y'] + ); + } + } + + if (($line) && ($fill)) { + pdf_fill_stroke($this->_pdf); + } elseif ($line) { + pdf_stroke($this->_pdf); + } elseif ($fill) { + pdf_fill($this->_pdf); + } + 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 = $this->_getX($params['x0']); + $y0 = $this->_getY($params['y0']); + $x1 = $this->_getX($params['x1']); + $y1 = $this->_getY($params['y1']); + $fillColor = (isset($params['fill']) ? $params['line'] : false); + $lineColor = (isset($params['line']) ? $params['line'] : false); + + $line = $this->_setLineStyle($lineColor); + $fill = $this->_setFillStyle($fillColor); + if (($line) || ($fill)) { + pdf_rect($this->_pdf, $this->_getX(min($x0, $x1)), $this->_getY(max($y0, $y1)), abs($x1 - $x0), abs($y1 - $y0)); + if (($line) && ($fill)) { + pdf_fill_stroke($this->_pdf); + } elseif ($line) { + pdf_stroke($this->_pdf); + } elseif ($fill) { + pdf_fill($this->_pdf); + } + } + 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); + + $line = $this->_setLineStyle($lineColor); + $fill = $this->_setFillStyle($fillColor); + if (($line) || ($fill)) { + if ($rx == $ry) { + pdf_circle($this->_pdf, $this->_getX($x), $this->_getY($y), $rx); + } else { + pdf_moveto($this->_pdf, $this->_getX($x - $rx), $this->_getY($y)); + pdf_curveto($this->_pdf, + $this->_getX($x - $rx), $this->_getY($y), + $this->_getX($x - $rx), $this->_getY($y - $ry), + $this->_getX($x), $this->_getY($y - $ry) + ); + pdf_curveto($this->_pdf, + $this->_getX($x), $this->_getY($y - $ry), + $this->_getX($x + $rx), $this->_getY($y - $ry), + $this->_getX($x + $rx), $this->_getY($y) + ); + pdf_curveto($this->_pdf, + $this->_getX($x + $rx), $this->_getY($y), + $this->_getX($x + $rx), $this->_getY($y + $ry), + $this->_getX($x), $this->_getY($y + $ry) + ); + pdf_curveto($this->_pdf, + $this->_getX($x), $this->_getY($y + $ry), + $this->_getX($x - $rx), $this->_getY($y + $ry), + $this->_getX($x - $rx), $this->_getY($y) + ); + } + + if (($line) && ($fill)) { + pdf_fill_stroke($this->_pdf); + } elseif ($line) { + pdf_stroke($this->_pdf); + } elseif ($fill) { + pdf_fill($this->_pdf); + } + } + parent::ellipse($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 = $this->_getX($params['srx']); + $sry = $this->_getY($params['sry']); + $fillColor = (isset($params['fill']) ? $params['line'] : false); + $lineColor = (isset($params['line']) ? $params['line'] : false); + + // TODO Implement PDFLIB::pieSlice() + parent::pieslice($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 ($this->_pdfFont === false) { + return $this->_font['size'] * 0.7 * strlen($text); + } else { + return pdf_stringwidth($this->_pdf, $text, $this->_pdfFont, $this->_font['size']); + } + } + + /** + * 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['size'])) { + return $this->_font['size']; + } else { + return 12; + } + } + + /** + * Writes text + * + * Parameter array: + * 'x': int X-point of text + * 'y': int Y-point of text + * 'text': string The text to add + * 'alignment': array [optional] Alignment + * 'color': mixed [optional] The color of the text + */ + function addText($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); + + $this->_setFont(); + + $textWidth = $this->textWidth($text); + $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'])) { + $alignment['horizontal'] = 'left'; + } + + if ($alignment['horizontal'] == 'right') { + $x = $x - $textWidth; + } elseif ($alignment['horizontal'] == 'center') { + $x = $x - ($textWidth / 2); + } + + if ($alignment['vertical'] == 'top') { + $y = $y + $textHeight; + } elseif ($alignment['vertical'] == 'center') { + $y = $y + ($textHeight / 2); + } + + if (($color === false) && (isset($this->_font['color']))) { + $color = $this->_font['color']; + } + + pdf_show_xy($this->_pdf, $text, $this->_getX($x), $this->_getY($y)); + + 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']; + $width = (isset($params['width']) ? $params['width'] : false); + $height = (isset($params['height']) ? $params['height'] : false); + $alignment = (isset($params['alignment']) ? $params['alignment'] : false); + + if (substr($filename, -4) == '.png') { + $type = 'png'; + } elseif (substr($filename, -4) == '.jpg') { + $type = 'jpeg'; + } + + $image = pdf_load_image($this->_pdf, $type, realpath($filename), ''); + $width_ = pdf_get_value($this->_pdf, 'imagewidth', $image); + $height_ = pdf_get_value($this->_pdf, 'imageheight', $image); + + $outputWidth = ($width !== false ? $width : $width_); + $outputHeight = ($height !== false ? $height : $height_); + + if (!is_array($alignment)) { + $alignment = array('vertical' => 'top', 'horizontal' => 'left'); + } + + if (!isset($alignment['vertical'])) { + $alignment['vertical'] = 'top'; + } + + if (!isset($alignment['horizontal'])) { + $alignment['horizontal'] = 'left'; + } + + if ($alignment['horizontal'] == 'right') { + $x -= $outputWidth; + } elseif ($alignment['horizontal'] == 'center') { + $x -= $outputWidth / 2; + } + + if ($alignment['vertical'] == 'top') { + $y += $outputHeight; + } elseif ($alignment['vertical'] == 'center') { + $y += $outputHeight / 2; + } + + if (($width === false) && ($height === false)) { + $scale = 1; + } else { + $scale = max(($height/$height_), ($width/$width_)); + } + + pdf_place_image($this->_pdf, $image, $this->_getX($x), $this->_getY($y), $scale); + pdf_close_image($this->_pdf, $image); + + parent::image($params); + } + + /** + * Output the result of the canvas + * + * @param array $param Parameter array + * @abstract + */ + function show($param = false) + { + parent::show($param); + pdf_end_page($this->_pdf); + pdf_close($this->_pdf); + + $buf = pdf_get_buffer($this->_pdf); + $len = strlen($buf); + + header('Content-type: application/pdf'); + header('Content-Length: ' . $len); + header('Content-Disposition: inline; filename=image_graph.pdf'); + print $buf; + + pdf_delete($this->_pdf); + } + + /** + * Output the result of the canvas + * + * @param array $param Parameter array + * @abstract + */ + function save($param = false) + { + parent::save($param); + pdf_end_page($this->_pdf); + pdf_close($this->_pdf); + + $buf = pdf_get_buffer($this->_pdf); + $len = strlen($buf); + + $fp = @fopen($param['filename'], 'wb'); + if ($fp) { + fwrite($fp, $buf, strlen($buf)); + fclose($fp); + } + pdf_delete($this->_pdf); + } + + /** + * 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 + * 'title': string The url title + */ + function toHtml($params) + { + parent::toHtml($params); + return '<a href="' . $params['urlpath'] . $params['filename'] . '">' . $params['title'] . '</a>'; + } + + /** + * Check which major version of PDFlib is installed + * + * @return int The mahor version number of PDFlib + * @access private + */ + function _version() + { + $result = false; + if (function_exists('pdf_get_majorversion')) { + $version = pdf_get_majorversion(); + } else { + ob_start(); + phpinfo(8); + $php_info = ob_get_contents(); + ob_end_clean(); + + if (ereg("<td[^>]*>PDFlib GmbH Version *<\/td><td[^>]*>([^<]*)<\/td>", + $php_info, $result)) + { + $version = $result[1]; + } + } + + if (ereg('([0-9]{1,2})\.[0-9]{1,2}(\.[0-9]{1,2})?', trim($version), $result)) { + return $result[1]; + } else { + return 0; + } + } + +} + +?>
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