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Diffstat (limited to 'config/dspam/pear/Image/Graph/Layout.php')
| -rw-r--r-- | config/dspam/pear/Image/Graph/Layout.php | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/config/dspam/pear/Image/Graph/Layout.php b/config/dspam/pear/Image/Graph/Layout.php new file mode 100644 index 00000000..1561aafa --- /dev/null +++ b/config/dspam/pear/Image/Graph/Layout.php @@ -0,0 +1,219 @@ +<?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 Layout + * @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/Plotarea/Element.php + */ +require_once 'Image/Graph/Plotarea/Element.php'; + +/** + * Defines an area of the graph that can be layout'ed. + * + * Any class that extends this abstract class can be used within a layout on the canvas. + * + * @category Images + * @package Image_Graph + * @subpackage Layout + * @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_Layout extends Image_Graph_Plotarea_Element +{ + + /** + * Has the coordinates already been updated? + * @var bool + * @access private + */ + var $_updated = false; + + /** + * Alignment of the area for each vertice (left, top, right, bottom) + * @var array + * @access private + */ + var $_alignSize = array ('left' => 0, 'top' => 0, 'right' => 0, 'bottom' => 0); + + /** + * Image_Graph_Layout [Constructor] + */ + function Image_Graph_Layout() + { + parent::Image_Graph_Element(); + $this->_padding = array('left' => 2, 'top' => 2, 'right' => 2, 'bottom' => 2); + } + + /** + * Resets the elements + * + * @access private + */ + function _reset() + { + parent::_reset(); + $this->_updated = false; + } + + /** + * Calculate the edge offset for a specific edge + * @param array $alignSize The alignment of the edge + * @param int $offset The offset/posision of the at 0% edge + * @param int $total The total size (width or height) of the element + * @param int $multiplier +/- 1 if the edge should pushed either toward more + * negative or positive values + * @since 0.3.0dev2 + * @access private + */ + function _calcEdgeOffset($alignSize, $offset, $total, $multiplier) + { + if ($alignSize['unit'] == 'percentage') { + return $offset + $multiplier * ($total * $alignSize['value'] / 100); + } elseif ($alignSize['unit'] == 'pixels') { + if (($alignSize['value'] == 'auto_part1') || ($alignSize['value'] == 'auto_part2')) { + $alignSize['value'] = $multiplier * $this->_parent->_getAbsolute($alignSize['value']); + } + if ($alignSize['value'] < 0) { + return $offset + $multiplier * ($total + $alignSize['value']); + } else { + return $offset + $multiplier * $alignSize['value']; + } + } + return $offset; + } + + /** + * Calculate the edges + * + * @access private + */ + function _calcEdges() + { + if ((is_array($this->_alignSize)) && (!$this->_updated)) { + $left = $this->_calcEdgeOffset( + $this->_alignSize['left'], + $this->_parent->_fillLeft(), + $this->_parent->_fillWidth(), + +1 + ); + $top = $this->_calcEdgeOffset( + $this->_alignSize['top'], + $this->_parent->_fillTop(), + $this->_parent->_fillHeight(), + +1 + ); + $right = $this->_calcEdgeOffset( + $this->_alignSize['right'], + $this->_parent->_fillRight(), + $this->_parent->_fillWidth(), + -1 + ); + $bottom = $this->_calcEdgeOffset( + $this->_alignSize['bottom'], + $this->_parent->_fillBottom(), + $this->_parent->_fillHeight(), + -1 + ); + + $this->_setCoords( + $left + $this->_padding['left'], + $top + $this->_padding['top'], + $right - $this->_padding['right'], + $bottom - $this->_padding['bottom'] + ); + } + } + + /** + * Update coordinates + * + * @access private + */ + function _updateCoords() + { + $this->_calcEdges(); + parent::_updateCoords(); + } + + /** + * Pushes an edge of area a specific distance 'into' the canvas + * + * @param int $edge The edge of the canvas to align relative to + * @param int $size The number of pixels or the percentage of the canvas total size to occupy relative to the selected alignment edge + * @access private + */ + function _push($edge, $size = '100%') + { + $result = array(); + if (ereg("([0-9]*)\%", $size, $result)) { + $this->_alignSize[$edge] = array( + 'value' => min(100, max(0, $result[1])), + 'unit' => 'percentage' + ); + } else { + $this->_alignSize[$edge] = array( + 'value' => $size, + 'unit' => 'pixels' + ); + } + } + + /** + * Sets the coordinates of the element + * + * @param int $left The leftmost pixel of the element on the canvas + * @param int $top The topmost pixel of the element on the canvas + * @param int $right The rightmost pixel of the element on the canvas + * @param int $bottom The bottommost pixel of the element on the canvas + * @access private + */ + function _setCoords($left, $top, $right, $bottom) + { + parent::_setCoords($left, $top, $right, $bottom); + $this->_updated = true; + } + + /** + * Returns the calculated "auto" size + * + * @return int The calculated auto size + * @access private + */ + function _getAutoSize() + { + return false; + } + +} + +?>
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