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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.php
parentdc3d5f22067dd659e4e8bd407e0745f78769fc85 (diff)
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+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * Image_Canvas
+ *
+ * Canvas based creation of images to facilitate different output formats
+ *
+ * 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
+ */
+
+/**
+ * Specfies the path to the system location of font files.
+ *
+ * Remember trailing slash!
+ *
+ * This is set by default on Windows systems to %SystemRoot%\Fonts\
+ */
+if (!defined('IMAGE_CANVAS_SYSTEM_FONT_PATH')) {
+ if (isset($_SERVER['SystemRoot'])) {
+ define('IMAGE_CANVAS_SYSTEM_FONT_PATH', $_SERVER['SystemRoot'] . '/Fonts/');
+ } else {
+ /**
+ * @ignore
+ */
+ define('IMAGE_CANVAS_SYSTEM_FONT_PATH', '');
+ }
+}
+
+/**
+ * Class for handling different output formats
+ *
+ * @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
+ * @abstract
+ */
+class Image_Canvas
+{
+
+ /**
+ * The leftmost pixel of the element on the canvas
+ * @var int
+ * @access private
+ */
+ var $_left = 0;
+
+ /**
+ * The topmost pixel of the element on the canvas
+ * @var int
+ * @access private
+ */
+ var $_top = 0;
+
+ /**
+ * The width of the graph
+ * @var int
+ * @access private
+ */
+ var $_width = 0;
+
+ /**
+ * The height of the graph
+ * @var int
+ * @access private
+ */
+ var $_height = 0;
+
+ /**
+ * Polygon vertex placeholder
+ * @var array
+ * @access private
+ */
+ var $_polygon = array();
+
+ /**
+ * The thickness of the line(s)
+ * @var int
+ * @access private
+ */
+ var $_thickness = 1;
+
+ /**
+ * The line style
+ * @var mixed
+ * @access private
+ */
+ var $_lineStyle = 'transparent';
+
+ /**
+ * The fill style
+ * @var mixed
+ * @access private
+ */
+ var $_fillStyle = 'transparent';
+
+ /**
+ * The font options
+ * @var array
+ * @access private
+ */
+ var $_font = array();
+
+ /**
+ * The default font
+ * @var array
+ * @access private
+ */
+ var $_defaultFont = array('name' => 'Courier New', 'color' => 'black', 'size' => 9);
+
+ /**
+ * Create the canvas.
+ *
+ * Parameters available:
+ *
+ * 'width' The width of the graph on the canvas
+ *
+ * 'height' The height of the graph on the canvas
+ *
+ * 'left' The left offset of the graph on the canvas
+ *
+ * 'top' The top offset of the graph on the canvas
+ *
+ * @param array $params Parameter array
+ * @abstract
+ */
+ function Image_Canvas($params)
+ {
+ if (isset($params['left'])) {
+ $this->_left = $params['left'];
+ }
+
+ if (isset($params['top'])) {
+ $this->_top = $params['top'];
+ }
+
+ if (isset($params['width'])) {
+ $this->_width = $params['width'];
+ }
+
+ if (isset($params['height'])) {
+ $this->_height = $params['height'];
+ }
+
+ $this->setDefaultFont($this->_defaultFont);
+ }
+
+ /**
+ * 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 floor($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 floor($this->_top + $y);
+ }
+
+ /**
+ * Get the width of the canvas
+ *
+ * @return int The width
+ */
+ function getWidth()
+ {
+ return $this->_width;
+ }
+
+ /**
+ * Get the height of the canvas
+ *
+ * @return int The height
+ */
+ function getHeight()
+ {
+ return $this->_height;
+ }
+
+ /**
+ * Sets the thickness of the line(s) to be drawn
+ *
+ * @param int $thickness The actual thickness (in pixels)
+ */
+ function setLineThickness($thickness)
+ {
+ $this->_thickness = $thickness;
+ }
+
+ /**
+ * Sets the color of the line(s) to be drawn
+ *
+ * @param mixed $color The color of the line
+ */
+ function setLineColor($color)
+ {
+ $this->_lineStyle = $color;
+ }
+
+ /**
+ * Sets the style of the filling of drawn objects.
+ *
+ * This method gives simple access to setFillColor(), setFillImage() and
+ * setGradientFill()
+ *
+ * @param mixed $fill The fill style
+ */
+ function setFill($fill)
+ {
+ if (is_array($fill)) {
+ $this->setGradientFill($fill);
+ } elseif (file_exists($fill)) {
+ $this->setFillImage($fill);
+ } else {
+ $this->setFillColor($fill);
+ }
+ }
+
+ /**
+ * Sets the color of the filling of drawn objects
+ *
+ * @param mixed $color The fill color
+ */
+ function setFillColor($color)
+ {
+ $this->_fillStyle = $color;
+ }
+
+ /**
+ * 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;
+ }
+
+ /**
+ * Sets the font options.
+ *
+ * The $font array may have the following entries:
+ *
+ * 'name' The name of the font. This name must either be supported
+ * natively by the canvas or mapped to a font using the font-mapping scheme
+ *
+ * 'size' Size in pixels
+ *
+ * 'angle' The angle with which to write the text
+ *
+ * @param array $fontOptions The font options.
+ */
+ function setFont($fontOptions)
+ {
+ $this->_font = $fontOptions;
+
+ if (!isset($this->_font['color'])) {
+ $this->_font['color'] = 'black';
+ }
+
+ if (!(isset($this->_font['angle'])) || ($this->_font['angle'] === false)) {
+ $this->_font['angle'] = 0;
+ }
+
+ if (isset($this->_font['angle'])) {
+ if ((($this->_font['angle'] > 45) && ($this->_font['angle'] < 135)) ||
+ (($this->_font['angle'] > 225) && ($this->_font['angle'] < 315))
+ ) {
+ $this->_font['vertical'] = true;
+ }
+ }
+
+ if ((!isset($this->_font['file'])) && (isset($this->_font['name']))) {
+ include_once 'Image/Canvas/Tool.php';
+ $this->_font['file'] = Image_Canvas_Tool::fontMap($this->_font['name']);
+ }
+ }
+
+ /**
+ * Sets the default font options.
+ *
+ * The $font array may have the following entries:
+ *
+ * 'name' The name of the font. This name must either be supported
+ * natively by the canvas or mapped to a font using the font-mapping scheme
+ *
+ * 'size' Size in pixels
+ *
+ * 'angle' The angle with which to write the text
+ *
+ * @param array $fontOptions The font options.
+ */
+ function setDefaultFont($fontOptions)
+ {
+ $this->setFont($fontOptions);
+ $this->_defaultFont = $this->_font;
+ }
+
+ /**
+ * Resets the canvas.
+ *
+ * Includes fillstyle, linestyle, thickness and polygon
+ *
+ * @access private
+ */
+ function _reset()
+ {
+ $this->_lineStyle = false;
+ $this->_fillStyle = false;
+ $this->_thickness = 1;
+ $this->_polygon = array();
+ $this->_font = $this->_defaultFont;
+ }
+
+ /**
+ * Reset the canvas.
+ *
+ * Includes fillstyle, linestyle, thickness and polygon
+ */
+ function reset()
+ {
+ $this->_reset();
+ }
+
+ /**
+ * Draw a line end
+ *
+ * Parameter array:
+ * 'x': int X point
+ * 'y': int Y point
+ * 'end': string The end type of the end
+ * 'angle': int [optional] The angle with which to draw the end
+ * @param array $params Parameter array
+ */
+ function drawEnd($params)
+ {
+ }
+
+ /**
+ * 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
+ * 'end0': string [optional] The end type of end0 (the start)
+ * 'end1': string [optional] The end type of end1 (the end)
+ * 'size0': int [optional] The size of end0
+ * 'size1': int [optional] The size of end1
+ * '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']);
+ if (isset($params['end0'])) {
+ $angle = Image_Canvas_Tool::getAngle($x1, $y1, $x0, $y0);
+ $this->drawEnd(
+ array(
+ 'end' => $params['end0'],
+ 'x' => $params['x0'],
+ 'y' => $params['y0'],
+ 'angle' => $angle,
+ 'color' => (isset($params['color0']) ? $params['color0'] : false),
+ 'size' => $params['size0']
+ )
+ );
+ }
+ if (isset($params['end1'])) {
+ $angle = Image_Canvas_Tool::getAngle($x0, $y0, $x1, $y1);
+ //print "<pre>"; var_dump($params, $angle); print "</pre>";
+ $this->drawEnd(
+ array(
+ 'end' => $params['end1'],
+ 'x' => $params['x1'],
+ 'y' => $params['y1'],
+ 'angle' => $angle,
+ 'color' => (isset($params['color1']) ? $params['color1'] : false),
+ 'size' => $params['size1']
+ )
+ );
+ }
+ $this->_reset();
+ }
+
+ /**
+ * Adds vertex to a polygon
+ *
+ * Parameter array:
+ * 'x': int X point
+ * 'y': int Y point
+ * 'url': string [optional] URL to link the vertex to (must be used with 'map_vertices' in polygon() on a canvas that support image maps)
+ * 'alt': string [optional] Alternative text to show in the image map (must be used with 'map_vertices' in polygon() on a canvas that support image maps)
+ * 'target': string [optional] The link target on the image map (must be used with 'map_vertices' in polygon() on a canvas that support image maps)
+ * 'mapsize': int [optional] The size of the "map", i.e. the size of the hot spot (must be used with 'map_vertices' in polygon() on a canvas that support image maps)
+ * @param array $params Parameter array
+ */
+ function addVertex($params)
+ {
+ $params['X'] = $this->_getX($params['x']);
+ $params['Y'] = $this->_getY($params['y']);
+ $this->_polygon[] = $params;
+ }
+
+ /**
+ * Adds "splined" vertex to a polygon
+ *
+ * Parameter array:
+ * 'x': int X point
+ * 'y': int Y point
+ * 'p1x': int X Control point 1
+ * 'p1y': int Y Control point 1
+ * 'p2x': int X Control point 2
+ * 'p2y': int Y Control point 2
+ * 'url': string [optional] URL to link the vertex to (must be used with 'map_vertices' in polygon() on a canvas that support image maps)
+ * 'alt': string [optional] Alternative text to show in the image map (must be used with 'map_vertices' in polygon() on a canvas that support image maps)
+ * 'target': string [optional] The link target on the image map (must be used with 'map_vertices' in polygon() on a canvas that support image maps)
+ * 'mapsize': int [optional] The size of the "map", i.e. the size of the hot spot (must be used with 'map_vertices' in polygon() on a canvas that support image maps)
+ * @param array $params Parameter array
+ */
+ function addSpline($params)
+ {
+ $params['X'] = $this->_getX($params['x']);
+ $params['Y'] = $this->_getY($params['y']);
+ $params['P1X'] = $this->_getX($params['p1x']);
+ $params['P1Y'] = $this->_getY($params['p1y']);
+ $params['P2X'] = $this->_getX($params['p2x']);
+ $params['P2Y'] = $this->_getY($params['p2y']);
+ $this->_polygon[] = $params;
+ }
+
+ /**
+ * Draws a polygon
+ *
+ * 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)
+ {
+ $this->_reset();
+ }
+
+ /**
+ * 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)
+ {
+ $this->_reset();
+ }
+
+ /**
+ * 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)
+ {
+ $this->_reset();
+ }
+
+ /**
+ * 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)
+ {
+ $this->_reset();
+ }
+
+ /**
+ * 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)
+ {
+ }
+
+ /**
+ * 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)
+ {
+ }
+
+ /**
+ * 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)
+ {
+ $this->_reset();
+ }
+
+ /**
+ * Overlay image
+ *
+ * Parameter array:
+ * 'x': int X-point of overlayed image
+ * 'y': int Y-point of overlayed image
+ * 'filename': string The filename of the image to overlay
+ * 'width': int [optional] The width of the overlayed image (resizing if possible)
+ * 'height': int [optional] The height of the overlayed image (resizing if possible)
+ * 'alignment': array [optional] Alignment
+ */
+ function image($params)
+ {
+ }
+
+ /**
+ * 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)
+ {
+ }
+
+ /**
+ * Start a group.
+ *
+ * What this does, depends on the canvas/format.
+ *
+ * @param string $name The name of the group
+ */
+ function startGroup($name = false)
+ {
+ }
+
+ /**
+ * End the "current" group.
+ *
+ * What this does, depends on the canvas/format.
+ */
+ function endGroup()
+ {
+ }
+
+ /**
+ * Output the result of the canvas to the browser
+ *
+ * @param array $params Parameter array, the contents and meaning depends on the actual Canvas
+ * @abstract
+ */
+ function show($params = false)
+ {
+ if ($params === false) {
+ header('Expires: Tue, 2 Jul 1974 17:41:00 GMT'); // Date in the past
+ header('Last-Modified: '.gmdate('D, d M Y H:i:s').' GMT'); // always modified
+ header('Cache-Control: no-cache, must-revalidate'); // HTTP/1.1
+ header('Pragma: no-cache');
+ }
+ }
+
+ /**
+ * Save the result of the canvas to a file
+ *
+ * Parameter array:
+ * 'filename': string The file to output to
+ * @param array $params Parameter array, the contents and meaning depends on the actual Canvas
+ * @abstract
+ */
+ function save($params = false)
+ {
+ }
+
+ /**
+ * 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
+ */
+ function toHtml($params)
+ {
+ $this->save(array('filename' => $params['filepath'] . $params['filename']));
+ }
+
+ /**
+ * Canvas factory method.
+ *
+ * Supported canvass are:
+ *
+ * 'png': output in PNG format (using GD)
+ *
+ * 'jpg': output in JPEG format (using GD)
+ *
+ * 'pdf': output in PDF format (using PDFlib)
+ *
+ * 'svg': output in SVG format
+ *
+ * 'imagemap': output as a html image map
+ *
+ * An example of usage:
+ *
+ * <code>
+ * <?php
+ * $Canvas =& Image_Graph::factory('png',
+ * array('width' => 800, 'height' => 600, 'antialias' => 'native')
+ * );
+ * ?>
+ * </code>
+ *
+ * @param string $canvas The canvas type
+ * @param array $params The parameters for the canvas constructor
+ * @return Image_Canvas The newly created canvas
+ * @static
+ */
+ function &factory($canvas, $params)
+ {
+ $canvas = strtoupper($canvas);
+
+ if (($canvas == 'PNG') || ($canvas == 'GD')) {
+ $canvas = 'GD_PNG';
+ }
+ if (($canvas == 'JPG') || ($canvas == 'JPEG')) {
+ $canvas = 'GD_JPG';
+ }
+
+ if ($canvas == 'IMAGEMAP') {
+ $canvas = 'ImageMap';
+ }
+
+ $class = 'Image_Canvas_'. $canvas;
+ include_once 'Image/Canvas/'. str_replace('_', '/', $canvas) . '.php';
+
+ $obj =& new $class($params);
+ return $obj;
+ }
+
+}
+
+?> \ No newline at end of file