fae6352bf2
Removed PHP_Compat, and references to it. Removed ionCube/Zend/mmCache compatibility checks in test.php script. Changed minimum PHP requirement to 5.0 in test.php script.
763 lines
22 KiB
PHP
763 lines
22 KiB
PHP
<?php
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/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
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/**
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* Image_Graph - Main class for the graph creation.
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*
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* PHP versions 4 and 5
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*
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* LICENSE: This library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or (at your
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* option) any later version. This library is distributed in the hope that it
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* will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
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* General Public License for more details. You should have received a copy of
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* the GNU Lesser General Public License along with this library; if not, write
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* to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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* 02111-1307 USA
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*
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* @category Images
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* @package Image_Graph
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* @author Jesper Veggerby <pear.nosey@veggerby.dk>
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* @copyright Copyright (C) 2003, 2004 Jesper Veggerby Hansen
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* @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1
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* @version CVS: $Id: Element.php,v 1.18 2006/02/28 22:48:07 nosey Exp $
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* @link http://pear.php.net/package/Image_Graph
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*/
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/**
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* Include file Common.php
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*/
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require_once 'Image/Graph/Common.php';
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/**
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* Representation of a element.
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*
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* The Image_Graph_Element can be drawn on the canvas, ie it has coordinates,
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* {@link Image_Graph_Line}, {@link Image_Graph_Fill}, border and background -
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* although not all of these may apply to all children.
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*
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* @category Images
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* @package Image_Graph
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* @author Jesper Veggerby <pear.nosey@veggerby.dk>
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* @copyright Copyright (C) 2003, 2004 Jesper Veggerby Hansen
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* @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1
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* @version Release: @package_version@
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* @link http://pear.php.net/package/Image_Graph
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* @abstract
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*/
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class Image_Graph_Element extends Image_Graph_Common
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{
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/**
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* The leftmost pixel of the element on the canvas
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* @var int
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* @access private
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*/
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var $_left = 0;
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/**
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* The topmost pixel of the element on the canvas
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* @var int
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* @access private
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*/
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var $_top = 0;
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/**
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* The rightmost pixel of the element on the canvas
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* @var int
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* @access private
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*/
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var $_right = 0;
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/**
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* The bottommost pixel of the element on the canvas
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* @var int
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* @access private
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*/
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var $_bottom = 0;
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/**
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* Background of the element. Default: None
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* @var FillStyle
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* @access private
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*/
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var $_background = null;
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/**
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* Borderstyle of the element. Default: None
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* @var LineStyle
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* @access private
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*/
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var $_borderStyle = null;
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/**
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* Line style of the element. Default: None
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* @var LineStyle
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* @access private
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*/
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var $_lineStyle = 'black';
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/**
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* Fill style of the element. Default: None
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* @var FillStyle
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* @access private
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*/
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var $_fillStyle = 'white';
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/**
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* Font of the element. Default: Standard font - FONT
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* @var Font
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* @access private
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* @see $IMAGE_GRAPH_FONT
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*/
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var $_font = null;
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/**
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* Font options
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* @var array
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* @access private
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*/
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var $_fontOptions = array();
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/**
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* Default font options
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*
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* This option is included for performance reasons. The value is calculated
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* before output and reused in default cases to avoid unnecessary recursive
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* calls.
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*
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* @var array
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* @access private
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*/
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var $_defaultFontOptions = false;
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/**
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* Shadows options of the element
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* @var mixed
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* @access private
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*/
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var $_shadow = false;
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/**
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* The padding displayed on the element
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* @var int
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* @access private
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*/
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var $_padding = array('left' => 0, 'top' => 0, 'right' => 0, 'bottom' => 0);
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/**
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* Sets the background fill style of the element
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*
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* @param Image_Graph_Fill $background The background
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* @see Image_Graph_Fill
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*/
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function setBackground(& $background)
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{
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if (!is_a($background, 'Image_Graph_Fill')) {
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$this->_error(
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'Could not set background for ' . get_class($this) . ': ' .
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get_class($background), array('background' => &$background)
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);
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} else {
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$this->_background =& $background;
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$this->add($background);
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}
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}
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/**
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* Shows shadow on the element
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*/
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function showShadow($color = 'black@0.2', $size = 5)
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{
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$this->_shadow = array(
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'color' => $color,
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'size' => $size
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);
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}
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/**
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* Sets the background color of the element.
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*
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* See colors.txt in the docs/ folder for a list of available named colors.
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*
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* @param mixed $color The color
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*/
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function setBackgroundColor($color)
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{
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$this->_background = $color;
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}
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/**
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* Gets the background fill style of the element
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*
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* @return int A GD fillstyle representing the background style
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* @see Image_Graph_Fill
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* @access private
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*/
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function _getBackground()
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{
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if (is_object($this->_background)) {
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$this->_canvas->setFill($this->_background->_getFillStyle());
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} elseif ($this->_background != null) {
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$this->_canvas->setFill($this->_background);
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} else {
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return false;
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}
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return true;
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}
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/**
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* Sets the border line style of the element
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*
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* @param Image_Graph_Line $borderStyle The line style of the border
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* @see Image_Graph_Line
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*/
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function setBorderStyle(& $borderStyle)
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{
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if (!is_a($borderStyle, 'Image_Graph_Line')) {
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$this->_error(
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'Could not set border style for ' . get_class($this) . ': ' .
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get_class($borderStyle), array('borderstyle' => &$borderStyle)
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);
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} else {
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$this->_borderStyle =& $borderStyle;
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$this->add($borderStyle);
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}
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}
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/**
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* Sets the border color of the element.
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*
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* See colors.txt in the docs/ folder for a list of available named colors.
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* @param mixed $color The color
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*/
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function setBorderColor($color)
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{
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$this->_borderStyle = $color;
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}
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/**
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* Gets the border line style of the element
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*
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* @return int A GD linestyle representing the borders line style
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* @see Image_Graph_Line
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* @access private
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*/
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function _getBorderStyle()
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{
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if (is_object($this->_borderStyle)) {
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$result = $this->_borderStyle->_getLineStyle();
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$this->_canvas->setLineThickness($result['thickness']);
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$this->_canvas->setLineColor($result['color']);
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} elseif ($this->_borderStyle != null) {
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$this->_canvas->setLineThickness(1);
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$this->_canvas->setLineColor($this->_borderStyle);
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} else {
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return false;
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}
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return true;
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}
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/**
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* Sets the line style of the element
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*
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* @param Image_Graph_Line $lineStyle The line style of the element
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* @see Image_Graph_Line
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*/
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function setLineStyle(& $lineStyle)
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{
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if (!is_object($lineStyle)) {
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$this->_error(
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'Could not set line style for ' . get_class($this) . ': ' .
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get_class($lineStyle), array('linestyle' => &$lineStyle)
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);
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} else {
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$this->_lineStyle =& $lineStyle;
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$this->add($lineStyle);
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}
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}
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/**
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* Sets the line color of the element.
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*
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* See colors.txt in the docs/ folder for a list of available named colors.
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*
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* @param mixed $color The color
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*/
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function setLineColor($color)
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{
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$this->_lineStyle = $color;
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}
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/**
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* Gets the line style of the element
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*
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* @return int A GD linestyle representing the line style
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* @see Image_Graph_Line
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* @access private
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*/
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function _getLineStyle($ID = false)
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{
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if (is_object($this->_lineStyle)) {
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$result = $this->_lineStyle->_getLineStyle($ID);
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if (is_array($result)) {
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$this->_canvas->setLineThickness($result['thickness']);
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$this->_canvas->setLineColor($result['color']);
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} else {
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$this->_canvas->setLineThickness(1);
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$this->_canvas->setLineColor($result);
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}
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} elseif ($this->_lineStyle != null) {
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$this->_canvas->setLineThickness(1);
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$this->_canvas->setLineColor($this->_lineStyle);
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} else {
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return false;
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}
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return true;
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}
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/**
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* Sets the fill style of the element
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*
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* @param Image_Graph_Fill $fillStyle The fill style of the element
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* @see Image_Graph_Fill
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*/
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function setFillStyle(& $fillStyle)
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{
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if (!is_a($fillStyle, 'Image_Graph_Fill')) {
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$this->_error(
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'Could not set fill style for ' . get_class($this) . ': ' .
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get_class($fillStyle), array('fillstyle' => &$fillStyle)
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);
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} else {
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$this->_fillStyle =& $fillStyle;
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$this->add($fillStyle);
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}
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}
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/**
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* Sets the fill color of the element.
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*
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* See colors.txt in the docs/ folder for a list of available named colors.
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*
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* @param mixed $color The color
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*/
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function setFillColor($color)
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{
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$this->_fillStyle = $color;
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}
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/**
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* Gets the fill style of the element
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*
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* @return int A GD filestyle representing the fill style
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* @see Image_Graph_Fill
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* @access private
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*/
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function _getFillStyle($ID = false)
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{
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if (is_object($this->_fillStyle)) {
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$this->_canvas->setFill($this->_fillStyle->_getFillStyle($ID));
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} elseif ($this->_fillStyle != null) {
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$this->_canvas->setFill($this->_fillStyle);
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} else {
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return false;
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}
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return true;
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}
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/**
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* Gets the font of the element.
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*
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* If not font has been set, the parent font is propagated through it's
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* children.
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*
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* @return array An associated array used for canvas
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* @access private
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*/
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function _getFont($options = false)
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{
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if (($options === false) && ($this->_defaultFontOptions !== false)) {
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return $this->_defaultFontOptions;
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}
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if ($options === false) {
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$saveDefault = true;
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} else {
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$saveDefault = false;
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}
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if ($options === false) {
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$options = $this->_fontOptions;
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} else {
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$options = array_merge($this->_fontOptions, $options);
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}
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if ($this->_font == null) {
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$result = $this->_parent->_getFont($options);
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} else {
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$result = $this->_font->_getFont($options);
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}
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if ((isset($result['size'])) && (isset($result['size_rel']))) {
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$result['size'] += $result['size_rel'];
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unset($result['size_rel']);
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}
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if ($saveDefault) {
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$this->_defaultFontOptions = $result;
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}
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return $result;
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}
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/**
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* Sets the font of the element
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*
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* @param Image_Graph_Font $font The font of the element
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* @see Image_Graph_Font
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*/
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function setFont(& $font)
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{
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if (!is_a($font, 'Image_Graph_Font')) {
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$this->_error('Invalid font set on ' . get_class($this));
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} else {
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$this->_font =& $font;
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$this->add($font);
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}
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}
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/**
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* Sets the font size
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*
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* @param int $size The size of the font
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*/
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function setFontSize($size)
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{
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$this->_fontOptions['size'] = $size;
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}
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/**
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* Sets the font angle
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*
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* @param int $angle The angle of the font
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*/
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function setFontAngle($angle)
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{
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if ($angle == 'vertical') {
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$this->_fontOptions['vertical'] = true;
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$this->_fontOptions['angle'] = 90;
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} else {
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$this->_fontOptions['angle'] = $angle;
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}
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}
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/**
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* Sets the font color
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*
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* @param mixed $color The color of the font
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*/
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function setFontColor($color)
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{
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$this->_fontOptions['color'] = $color;
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}
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/**
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* Clip the canvas to the coordinates of the element
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*
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* @param $enable bool Whether clipping should be enabled or disabled
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* @access protected
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*/
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function _clip($enable)
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{
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$this->_canvas->setClipping(
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($enable ?
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array(
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'x0' => min($this->_left, $this->_right),
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'y0' => min($this->_top, $this->_bottom),
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'x1' => max($this->_left, $this->_right),
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'y1' => max($this->_top, $this->_bottom)
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)
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: false
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)
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);
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}
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/**
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* Sets the coordinates of the element
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*
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* @param int $left The leftmost pixel of the element on the canvas
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* @param int $top The topmost pixel of the element on the canvas
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* @param int $right The rightmost pixel of the element on the canvas
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* @param int $bottom The bottommost pixel of the element on the canvas
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* @access private
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*/
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function _setCoords($left, $top, $right, $bottom)
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{
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if ($left === false) {
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$left = $this->_left;
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}
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if ($top === false) {
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$top = $this->_top;
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}
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if ($right === false) {
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$right = $this->_right;
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}
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if ($bottom === false) {
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$bottom = $this->_bottom;
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}
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$this->_left = min($left, $right);
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$this->_top = min($top, $bottom);
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$this->_right = max($left, $right);
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$this->_bottom = max($top, $bottom);
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}
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/**
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* Moves the element
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*
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* @param int $deltaX Number of pixels to move the element to the right
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* (negative values move to the left)
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* @param int $deltaY Number of pixels to move the element downwards
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* (negative values move upwards)
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* @access private
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*/
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function _move($deltaX, $deltaY)
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{
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$this->_left += $deltaX;
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$this->_right += $deltaX;
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$this->_top += $deltaY;
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$this->_bottom += $deltaY;
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}
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/**
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* Sets the width of the element relative to the left side
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*
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* @param int $width Number of pixels the element should be in width
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* @access private
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*/
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function _setWidth($width)
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{
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$this->_right = $this->_left + $width;
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}
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/**
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* Sets the height of the element relative to the top
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*
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* @param int $width Number of pixels the element should be in height
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* @access private
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*/
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function _setHeight($height)
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{
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$this->_bottom = $this->_top + $height;
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}
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/**
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* Sets padding of the element
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*
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* @param mixed $padding Number of pixels the element should be padded with
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* or an array of paddings (left, top, right and bottom as index)
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*/
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function setPadding($padding)
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{
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if (is_array($padding)) {
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$this->_padding = array();
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$this->_padding['left'] = (isset($padding['left']) ? $padding['left'] : 0);
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$this->_padding['top'] = (isset($padding['top']) ? $padding['top'] : 0);
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$this->_padding['right'] = (isset($padding['right']) ? $padding['right'] : 0);
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$this->_padding['bottom'] = (isset($padding['bottom']) ? $padding['bottom'] : 0);
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}
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else {
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$this->_padding = array(
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'left' => $padding,
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'top' => $padding,
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'right' => $padding,
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'bottom' => $padding
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);
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}
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}
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/**
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* The width of the element on the canvas
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*
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* @return int Number of pixels representing the width of the element
|
|
*/
|
|
function width()
|
|
{
|
|
return abs($this->_right - $this->_left) + 1;
|
|
}
|
|
|
|
/**
|
|
* The height of the element on the canvas
|
|
*
|
|
* @return int Number of pixels representing the height of the element
|
|
*/
|
|
function height()
|
|
{
|
|
return abs($this->_bottom - $this->_top) + 1;
|
|
}
|
|
|
|
/**
|
|
* Left boundary of the background fill area
|
|
*
|
|
* @return int Leftmost position on the canvas
|
|
* @access private
|
|
*/
|
|
function _fillLeft()
|
|
{
|
|
return $this->_left + $this->_padding['left'];
|
|
}
|
|
|
|
/**
|
|
* Top boundary of the background fill area
|
|
*
|
|
* @return int Topmost position on the canvas
|
|
* @access private
|
|
*/
|
|
function _fillTop()
|
|
{
|
|
return $this->_top + $this->_padding['top'];
|
|
}
|
|
|
|
/**
|
|
* Right boundary of the background fill area
|
|
*
|
|
* @return int Rightmost position on the canvas
|
|
* @access private
|
|
*/
|
|
function _fillRight()
|
|
{
|
|
return $this->_right - $this->_padding['right'];
|
|
}
|
|
|
|
/**
|
|
* Bottom boundary of the background fill area
|
|
*
|
|
* @return int Bottommost position on the canvas
|
|
* @access private
|
|
*/
|
|
function _fillBottom()
|
|
{
|
|
return $this->_bottom - $this->_padding['bottom'];
|
|
}
|
|
|
|
/**
|
|
* Returns the filling width of the element on the canvas
|
|
*
|
|
* @return int Filling width
|
|
* @access private
|
|
*/
|
|
function _fillWidth()
|
|
{
|
|
return $this->_fillRight() - $this->_fillLeft() + 1;
|
|
}
|
|
|
|
/**
|
|
* Returns the filling height of the element on the canvas
|
|
*
|
|
* @return int Filling height
|
|
* @access private
|
|
*/
|
|
function _fillHeight()
|
|
{
|
|
return $this->_fillBottom() - $this->_fillTop() + 1;
|
|
}
|
|
|
|
/**
|
|
* Draws a shadow 'around' the element
|
|
*
|
|
* Not implemented yet.
|
|
*
|
|
* @access private
|
|
*/
|
|
function _displayShadow()
|
|
{
|
|
if (is_array($this->_shadow)) {
|
|
$this->_canvas->startGroup(get_class($this) . '_shadow');
|
|
$this->_canvas->setFillColor($this->_shadow['color']);
|
|
$this->_canvas->addVertex(array('x' => $this->_right + 1, 'y' => $this->_top + $this->_shadow['size']));
|
|
$this->_canvas->addVertex(array('x' => $this->_right + $this->_shadow['size'], 'y' => $this->_top + $this->_shadow['size']));
|
|
$this->_canvas->addVertex(array('x' => $this->_right + $this->_shadow['size'], 'y' => $this->_bottom + $this->_shadow['size']));
|
|
$this->_canvas->addVertex(array('x' => $this->_left + $this->_shadow['size'], 'y' => $this->_bottom + $this->_shadow['size']));
|
|
$this->_canvas->addVertex(array('x' => $this->_left + $this->_shadow['size'], 'y' => $this->_bottom + 1));
|
|
$this->_canvas->addVertex(array('x' => $this->_right + 1, 'y' => $this->_bottom + 1));
|
|
$this->_canvas->polygon(array('connect' => true));
|
|
$this->_canvas->endGroup();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Writes text to the canvas.
|
|
*
|
|
* @param int $x The x position relative to alignment
|
|
* @param int $y The y position relative to alignment
|
|
* @param string $text The text
|
|
* @param int $alignmen The text alignment (both vertically and horizontally)
|
|
*/
|
|
function write($x, $y, $text, $alignment = false, $font = false)
|
|
{
|
|
if (($font === false) && ($this->_defaultFontOptions !== false)) {
|
|
$font = $this->_defaultFontOptions;
|
|
} else {
|
|
$font = $this->_getFont($font);
|
|
}
|
|
|
|
if ($alignment === false) {
|
|
$alignment = IMAGE_GRAPH_ALIGN_LEFT + IMAGE_GRAPH_ALIGN_TOP;
|
|
}
|
|
|
|
$align = array();
|
|
|
|
if (($alignment & IMAGE_GRAPH_ALIGN_TOP) != 0) {
|
|
$align['vertical'] = 'top';
|
|
} else if (($alignment & IMAGE_GRAPH_ALIGN_BOTTOM) != 0) {
|
|
$align['vertical'] = 'bottom';
|
|
} else {
|
|
$align['vertical'] = 'center';
|
|
}
|
|
|
|
if (($alignment & IMAGE_GRAPH_ALIGN_LEFT) != 0) {
|
|
$align['horizontal'] = 'left';
|
|
} else if (($alignment & IMAGE_GRAPH_ALIGN_RIGHT) != 0) {
|
|
$align['horizontal'] = 'right';
|
|
} else {
|
|
$align['horizontal'] = 'center';
|
|
}
|
|
|
|
$this->_canvas->setFont($font);
|
|
$this->_canvas->addText(array('x' => $x, 'y' => $y, 'text' => $text, 'alignment' => $align));
|
|
}
|
|
|
|
/**
|
|
* Output the element to the canvas
|
|
*
|
|
* @return bool Was the output 'good' (true) or 'bad' (false).
|
|
* @see Image_Graph_Common
|
|
* @access private
|
|
*/
|
|
function _done()
|
|
{
|
|
$background = $this->_getBackground();
|
|
$border = $this->_getBorderStyle();
|
|
if (($background) || ($border)) {
|
|
$this->_canvas->rectangle(array('x0' => $this->_left, 'y0' => $this->_top, 'x1' => $this->_right, 'y1' => $this->_bottom));
|
|
}
|
|
|
|
$result = parent::_done();
|
|
|
|
if ($this->_shadow !== false) {
|
|
$this->_displayShadow();
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
}
|
|
?>
|