diff options
Diffstat (limited to 'config/dspam/pear/Image/Graph/Axis/Category.php')
| -rw-r--r-- | config/dspam/pear/Image/Graph/Axis/Category.php | 437 |
1 files changed, 437 insertions, 0 deletions
diff --git a/config/dspam/pear/Image/Graph/Axis/Category.php b/config/dspam/pear/Image/Graph/Axis/Category.php new file mode 100644 index 00000000..b6451496 --- /dev/null +++ b/config/dspam/pear/Image/Graph/Axis/Category.php @@ -0,0 +1,437 @@ +<?php + +/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */ + +/** + * Class for axis handling. + * + * 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 Axis + * @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/Axis.php + */ +require_once 'Image/Graph/Axis.php'; + +/** + * A normal axis thats displays labels with a 'interval' of 1. + * This is basically a normal axis where the range is + * the number of labels defined, that is the range is explicitly defined + * when constructing the axis. + * + * @category Images + * @package Image_Graph + * @subpackage Axis + * @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 + */ +class Image_Graph_Axis_Category extends Image_Graph_Axis +{ + + /** + * The labels shown on the axis + * @var array + * @access private + */ + var $_labels = false; + + /** + * Image_Graph_Axis_Category [Constructor]. + * + * @param int $type The type (direction) of the Axis + */ + function Image_Graph_Axis_Category($type = IMAGE_GRAPH_AXIS_X) + { + parent::Image_Graph_Axis($type); + $this->_labels = array(); + $this->setlabelInterval(1); + } + + /** + * Gets the minimum value the axis will show. + * + * This is always 0 + * + * @return double The minumum value + * @access private + */ + function _getMinimum() + { + return 0; + } + + /** + * Gets the maximum value the axis will show. + * + * This is always the number of labels passed to the constructor. + * + * @return double The maximum value + * @access private + */ + function _getMaximum() + { + return count($this->_labels) - 1; + } + + /** + * Sets the minimum value the axis will show. + * + * A minimum cannot be set on a SequentialAxis, it is always 0. + * + * @param double Minimum The minumum value to use on the axis + * @access private + */ + function _setMinimum($minimum) + { + } + + /** + * Sets the maximum value the axis will show + * + * A maximum cannot be set on a SequentialAxis, it is always the number + * of labels passed to the constructor. + * + * @param double Maximum The maximum value to use on the axis + * @access private + */ + function _setMaximum($maximum) + { + } + + /** + * Forces the minimum value of the axis + * + * <b>A minimum cannot be set on this type of axis</b> + * + * To modify the labels which are displayed on the axis, instead use + * setLabelInterval($labels) where $labels is an array containing the + * values/labels the axis should display. <b>Note!</b> Only values in + * this array will then be displayed on the graph! + * + * @param double $minimum A minimum cannot be set on this type of axis + */ + function forceMinimum($minimum, $userEnforce = true) + { + } + + /** + * Forces the maximum value of the axis + * + * <b>A maximum cannot be set on this type of axis</b> + * + * To modify the labels which are displayed on the axis, instead use + * setLabelInterval($labels) where $labels is an array containing the + * values/labels the axis should display. <b>Note!</b> Only values in + * this array will then be displayed on the graph! + * + * @param double $maximum A maximum cannot be set on this type of axis + */ + function forceMaximum($maximum, $userEnforce = true) + { + } + + /** + * Sets an interval for where labels are shown on the axis. + * + * The label interval is rounded to nearest integer value. + * + * @param double $labelInterval The interval with which labels are shown + */ + function setLabelInterval($labelInterval = 'auto', $level = 1) + { + if (is_array($labelInterval)) { + parent::setLabelInterval($labelInterval); + } elseif ($labelInterval == 'auto') { + parent::setLabelInterval(1); + } else { + parent::setLabelInterval(round($labelInterval)); + } + } + + /** + * Preprocessor for values, ie for using logarithmic axis + * + * @param double $value The value to preprocess + * @return double The preprocessed value + * @access private + */ + function _value($value) + { +// $the_value = array_search($value, $this->_labels); + if (isset($this->_labels[$value])) { + $the_value = $this->_labels[$value]; + if ($the_value !== false) { + return $the_value + ($this->_pushValues ? 0.5 : 0); + } else { + return 0; + } + } + } + + + /** + * Get the minor label interval with which axis label ticks are drawn. + * + * For a sequential axis this is always disabled (i.e false) + * + * @return double The minor label interval, always false + * @access private + */ + function _minorLabelInterval() + { + return false; + } + + /** + * Get the size in pixels of the axis. + * + * For an x-axis this is the width of the axis including labels, and for an + * y-axis it is the corrresponding height + * + * @return int The size of the axis + * @access private + */ + function _size() + { + if (!$this->_visible) { + return 0; + } + + $this->_canvas->setFont($this->_getFont()); + + $maxSize = 0; + foreach($this->_labels as $label => $id) { + $labelPosition = $this->_point($label); + + if (is_object($this->_dataPreProcessor)) { + $labelText = $this->_dataPreProcessor->_process($label); + } else { + $labelText = $label; + } + + if ((($this->_type == IMAGE_GRAPH_AXIS_X) && (!$this->_transpose)) || + (($this->_type != IMAGE_GRAPH_AXIS_X) && ($this->_transpose))) + { + $maxSize = max($maxSize, $this->_canvas->textHeight($labelText)); + } else { + $maxSize = max($maxSize, $this->_canvas->textWidth($labelText)); + } + } + + if ($this->_title) { + $this->_canvas->setFont($this->_getTitleFont()); + + if ((($this->_type == IMAGE_GRAPH_AXIS_X) && (!$this->_transpose)) || + (($this->_type != IMAGE_GRAPH_AXIS_X) && ($this->_transpose))) + { + $maxSize += $this->_canvas->textHeight($this->_title); + } else { + $maxSize += $this->_canvas->textWidth($this->_title); + } + $maxSize += 10; + } + return $maxSize +3; + } + + /** + * Apply the dataset to the axis. + * + * This calculates the order of the categories, which is very important + * for fx. line plots, so that the line does not "go backwards", consider + * these X-sets:<p> + * 1: (1, 2, 3, 4, 5, 6)<br> + * 2: (0, 1, 2, 3, 4, 5, 6, 7)<p> + * If they are not ordered, but simply appended, the categories on the axis + * would be:<p> + * X: (1, 2, 3, 4, 5, 6, 0, 7)<p> + * Which would render the a line for the second plot to show incorrectly. + * Instead this algorithm, uses and 'value- is- before' method to see that + * the 0 is before a 1 in the second set, and that it should also be before + * a 1 in the X set. Hence:<p> + * X: (0, 1, 2, 3, 4, 5, 6, 7) + * + * @param Image_Graph_Dataset $dataset The dataset + * @access private + */ + function _applyDataset(&$dataset) + { + $newLabels = array(); + $allLabels = array(); + + $dataset->_reset(); + $count = 0; + $count_new = 0; + while ($point = $dataset->_next()) { + if ($this->_type == IMAGE_GRAPH_AXIS_X) { + $data = $point['X']; + } else { + $data = $point['Y']; + } + if (!isset($this->_labels[$data])) { + $newLabels[$data] = $count_new++; + //$this->_labels[] = $data; + } + $allLabels[$data] = $count++; + } + + if (count($this->_labels) == 0) { + $this->_labels = $newLabels; + } elseif ((is_array($newLabels)) && (count($newLabels) > 0)) { + // get all intersecting labels + $intersect = array_intersect(array_keys($allLabels), array_keys($this->_labels)); + // traverse all new and find their relative position withing the + // intersec, fx value X0 is before X1 in the intersection, which + // means that X0 should be placed before X1 in the label array + foreach($newLabels as $newLabel => $id) { + $key = $allLabels[$newLabel]; + reset($intersect); + $this_value = false; + // intersect indexes are the same as in allLabels! + $first = true; + while ((list($id, $value) = each($intersect)) && + ($this_value === false)) + { + if (($first) && ($id > $key)) { + $this_value = $value; + } elseif ($id >= $key) { + $this_value = $value; + } + $first = false; + } + + if ($this_value === false) { + // the new label was not found before anything in the + // intersection -> append it + $this->_labels[$newLabel] = count($this->_labels); + } else { + // the new label was found before $this_value in the + // intersection, insert the label before this position in + // the label array +// $key = $this->_labels[$this_value]; + $keys = array_keys($this->_labels); + $key = array_search($this_value, $keys); + $pre = array_slice($keys, 0, $key); + $pre[] = $newLabel; + $post = array_slice($keys, $key); + $this->_labels = array_flip(array_merge($pre, $post)); + } + } + unset($keys); + } + + $labels = array_keys($this->_labels); + $i = 0; + foreach ($labels as $label) { + $this->_labels[$label] = $i++; + } + +// $this->_labels = array_values(array_unique($this->_labels)); + $this->_calcLabelInterval(); + } + + /** + * Return the label distance. + * + * @return int The distance between 2 adjacent labels + * @access private + */ + function _labelDistance($level = 1) + { + reset($this->_labels); + list($l1) = each($this->_labels); + list($l2) = each($this->_labels); + return abs($this->_point($l2) - $this->_point($l1)); + } + + /** + * Get next label point + * + * @param doubt $point The current point, if omitted or false, the first is + * returned + * @return double The next label point + * @access private + */ + function _getNextLabel($currentLabel = false, $level = 1) + { + if ($currentLabel === false) { + reset($this->_labels); + } + $result = false; + $count = ($currentLabel === false ? $this->_labelInterval() - 1 : 0); + while ($count < $this->_labelInterval()) { + $result = (list($label) = each($this->_labels)); + $count++; + } + if ($result) { + return $label; + } else { + return false; + } + } + + /** + * Is the axis numeric or not? + * + * @return bool True if numeric, false if not + * @access private + */ + function _isNumeric() + { + return false; + } + + /** + * Output the axis + * + * @return bool Was the output 'good' (true) or 'bad' (false). + * @access private + */ + function _done() + { + $result = true; + if (Image_Graph_Element::_done() === false) { + $result = false; + } + + $this->_canvas->startGroup(get_class($this)); + + $this->_drawAxisLines(); + + $this->_canvas->startGroup(get_class($this) . '_ticks'); + $label = false; + while (($label = $this->_getNextLabel($label)) !== false) { + $this->_drawTick($label); + } + $this->_canvas->endGroup(); + + $this->_canvas->endGroup(); + + return $result; + } + +} + +?>
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