/Image/Graph/Layout/Horizontal.php
PHP | 186 lines | 79 code | 15 blank | 92 comment | 15 complexity | f102c2124c43f7bf874ef528aed66f26 MD5 | raw file
Possible License(s): LGPL-2.1, GPL-2.0
- <?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: Horizontal.php,v 1.11 2006/02/28 22:48:07 nosey Exp $
- * @link http://pear.php.net/package/Image_Graph
- */
- /**
- * Include file Image/Graph/Layout.php
- */
- require_once 'Image/Graph/Layout.php';
- /**
- * Layout for displaying two elements side by side.
- *
- * This splits the area contained by this element in two, side by side by
- * a specified percentage (relative to the left side). A layout can be nested.
- * Fx. a HorizontalLayout can layout two {@link Image_Graph_Layout_Vertical}s to
- * make a 2 by 2 matrix of 'element-areas'.
- *
- * @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: 0.7.2
- * @link http://pear.php.net/package/Image_Graph
- */
- class Image_Graph_Layout_Horizontal extends Image_Graph_Layout
- {
- /**
- * Part1 of the layout
- * @var GraPHPElemnt
- * @access private
- */
- var $_part1 = false;
- /**
- * Part2 of the layout
- * @var GraPHPElemnt
- * @access private
- */
- var $_part2 = false;
- /**
- * The percentage of the graph where the split occurs
- * @var int
- * @access private
- */
- var $_percentage;
- /**
- * An absolute position where the split occurs
- * @var int
- * @access private
- */
- var $_absolute;
- /**
- * HorizontalLayout [Constructor]
- *
- * @param Image_Graph_Element $part1 The 1st part of the layout
- * @param Image_Graph_Element $part2 The 2nd part of the layout
- * @param int $percentage The percentage of the layout to split at
- */
- function Image_Graph_Layout_Horizontal(& $part1, & $part2, $percentage = 50)
- {
- parent::Image_Graph_Layout();
- if (!is_a($part1, 'Image_Graph_Layout')) {
- $this->_error(
- 'Cannot create layout on non-layouable parts: ' . get_class($part1),
- array('part1' => &$part1, 'part2' => &$part2)
- );
- } elseif (!is_a($part2, 'Image_Graph_Layout')) {
- $this->_error(
- 'Cannot create layout on non-layouable parts: ' . get_class($part2),
- array('part1' => &$part1, 'part2' => &$part2)
- );
- } else {
- $this->_part1 =& $part1;
- $this->_part2 =& $part2;
- $this->add($this->_part1);
- $this->add($this->_part2);
- };
- if ($percentage === 'auto') {
- $this->_percentage = false;
- $this->_absolute = 'runtime';
- } else {
- $this->_absolute = false;
- $this->_percentage = max(0, min(100, $percentage));
- }
- $this->_split();
- $this->_padding = array('left' => 0, 'top' => 0, 'right' => 0, 'bottom' => 0);
- }
- /**
- * Gets the absolute size of one of the parts.
- *
- * @param string $part The name of the part - auto_part(1|2)
- * @return int The number of pixels the edge should be pushed
- * @since 0.3.0dev2
- * @access private
- */
- function _getAbsolute(&$part)
- {
- $part1Size = $this->_part1->_getAutoSize();
- $part2Size = $this->_part2->_getAutoSize();
- $this->_percentage = false;
- if (($part1Size !== false) and ($part2Size !== false)) {
- $width = $this->_fillWidth() * $part1Size / ($part1Size + $part2Size);
- } elseif ($part1Size !== false) {
- $width = $part1Size;
- } elseif ($part2Size !== false) {
- $width = -$part2Size;
- } else {
- $width = $this->_fillWidth() / 2;
- }
- if ($part == 'auto_part2') {
- $width = -$width;
- }
- return $width;
- }
- /**
- * Splits the layout between the parts, by the specified percentage
- *
- * @access private
- */
- function _split()
- {
- if (($this->_part1) && ($this->_part2)) {
- if ($this->_percentage !== false) {
- $split1 = 100 - $this->_percentage;
- $split2 = $this->_percentage;
- $this->_part1->_push('right', "$split1%");
- $this->_part2->_push('left', "$split2%");
- } else {
- $this->_part1->_push('right', 'auto_part1');
- $this->_part2->_push('left', 'auto_part2');
- }
- }
- }
- /**
- * Output the layout to the canvas
- *
- * @return bool Was the output 'good' (true) or 'bad' (false).
- * @access private
- */
- function _done()
- {
- if (($this->_part1) && ($this->_part2)) {
- return (($this->_part1->_done()) && ($this->_part2->_done()));
- }
- return true;
- }
- }
- ?>