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Diffstat (limited to 'config/dspam/pear/Image/Graph/Grid.php')
| -rw-r--r-- | config/dspam/pear/Image/Graph/Grid.php | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/config/dspam/pear/Image/Graph/Grid.php b/config/dspam/pear/Image/Graph/Grid.php new file mode 100644 index 00000000..4406dbdd --- /dev/null +++ b/config/dspam/pear/Image/Graph/Grid.php @@ -0,0 +1,175 @@ +<?php + +/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */ + +/** + * Image_Graph - PEAR PHP OO Graph Rendering Utility. + * + * 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_Graph + * @subpackage Grid + * @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/package/Image_Graph + */ + +/** + * Include file Image/Graph/Element.php + */ +require_once 'Image/Graph/Element.php'; + +/** + * A grid displayed on the plotarea. + * + * A grid is associated with a primary and a secondary axis. The grid is + * displayed in context of the primary axis' label interval - meaning that a + * grid for an Y-axis displays a grid for every label on the y-axis (fx. a {@link + * Image_Graph_Grid_Lines}, which displays horizontal lines for every label on + * the y-axis from the x-axis minimum to the x-axis maximum). You should always + * add the grid as one of the first elements to the plotarea. This is due to the + * fact that elements are 'outputted' in the order they are added, i.e. if an + * grid is added *after* a chart, the grid will be displayed on top of the chart + * which is (probably) not desired. + * + * @category Images + * @package Image_Graph + * @subpackage Grid + * @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/package/Image_Graph + * @abstract + */ +class Image_Graph_Grid extends Image_Graph_Plotarea_Element +{ + + /** + * The primary axis: the grid 'refers' to + * @var Axis + * @access private + */ + var $_primaryAxis = null; + + /** + * The secondary axis + * @var Axis + * @access private + */ + var $_secondaryAxis = null; + + /** + * Set the primary axis: the grid should 'refer' to + * + * @param Image_Graph_Axis $axis The axis + * @access private + */ + function _setPrimaryAxis(& $axis) + { + $this->_primaryAxis =& $axis; + } + + /** + * Set the secondary axis + * + * @param Image_Graph_Axis $axis The axis + * @access private + */ + function _setSecondaryAxis(& $axis) + { + $this->_secondaryAxis =& $axis; + } + + /** + * Get the points on the secondary axis that the grid should 'connect' + * + * @return array The secondary data values that should mark the grid 'end points' + * @access private + */ + function _getSecondaryAxisPoints() + { + if (is_a($this->_secondaryAxis, 'Image_Graph_Axis_Radar')) { + $secondaryValue = false; + $firstValue = $secondaryValue; + while (($secondaryValue = $this->_secondaryAxis->_getNextLabel($secondaryValue)) !== false) { + $secondaryAxisPoints[] = $secondaryValue; + } + $secondaryAxisPoints[] = $firstValue; + } else { + $secondaryAxisPoints = array ('#min#', '#max#'); + } + return $secondaryAxisPoints; + } + + /** + * Get the X pixel position represented by a value + * + * @param double $point the value to get the pixel-point for + * @return double The pixel position along the axis + * @access private + */ + function _pointX($point) + { + if (($this->_primaryAxis->_type == IMAGE_GRAPH_AXIS_Y) || + ($this->_primaryAxis->_type == IMAGE_GRAPH_AXIS_Y_SECONDARY)) + { + $point['AXIS_Y'] = $this->_primaryAxis->_type; + } else { + $point['AXIS_Y'] = $this->_secondaryAxis->_type; + } + return parent::_pointX($point); + } + + /** + * Get the Y pixel position represented by a value + * + * @param double $point the value to get the pixel-point for + * @return double The pixel position along the axis + * @access private + */ + function _pointY($point) + { + if (($this->_primaryAxis->_type == IMAGE_GRAPH_AXIS_Y) || + ($this->_primaryAxis->_type == IMAGE_GRAPH_AXIS_Y_SECONDARY)) + { + $point['AXIS_Y'] = $this->_primaryAxis->_type; + } else { + $point['AXIS_Y'] = $this->_secondaryAxis->_type; + } + return parent::_pointY($point); + } + + /** + * Causes the object to update all sub elements coordinates. + * + * @access private + */ + function _updateCoords() + { + $this->_setCoords( + $this->_parent->_plotLeft, + $this->_parent->_plotTop, + $this->_parent->_plotRight, + $this->_parent->_plotBottom + ); + parent::_updateCoords(); + } + +} + +?>
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