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Diffstat (limited to 'packages/dspam/pear/Image/Graph/Marker/Value.php')
| -rw-r--r-- | packages/dspam/pear/Image/Graph/Marker/Value.php | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/packages/dspam/pear/Image/Graph/Marker/Value.php b/packages/dspam/pear/Image/Graph/Marker/Value.php new file mode 100644 index 00000000..24f142f3 --- /dev/null +++ b/packages/dspam/pear/Image/Graph/Marker/Value.php @@ -0,0 +1,214 @@ +<?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 Marker + * @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/Marker.php + */ +require_once 'Image/Graph/Marker.php'; + +/** + * A marker showing the data value. + * + * @category Images + * @package Image_Graph + * @subpackage Marker + * @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_Marker_Value extends Image_Graph_Marker +{ + + /** + * Datapreproccesor to format the value + * @var DataPreprocessor + * @access private + */ + var $_dataPreprocessor = null; + + /** + * Which value to use from the data set, ie the X or Y value + * @var int + * @access private + */ + var $_useValue; + + /** + * Create a value marker, ie a box containing the value of the 'pointing + * data' + * + * @param int $useValue Defines which value to use from the dataset, i.e. the + * X or Y value + */ + function Image_Graph_Marker_Value($useValue = IMAGE_GRAPH_VALUE_X) + { + parent::Image_Graph_Marker(); + $this->_padding = array('left' => 2, 'top' => 2, 'right' => 2, 'bottom' => 2); + $this->_useValue = $useValue; + $this->_fillStyle = 'white'; + $this->_borderStyle = 'black'; + } + + /** + * Sets the background fill style of the element + * + * @param Image_Graph_Fill $background The background + * @see Image_Graph_Fill + */ + function setBackground(& $background) + { + $this->setFillStyle($background); + } + + /** + * Sets the background color of the element + * + * @param mixed $color The color + */ + function setBackgroundColor($color) + { + $this->setFillColor($color); + } + + /** + * Sets a data preprocessor for formatting the values + * + * @param DataPreprocessor $dataPreprocessor The data preprocessor + * @return Image_Graph_DataPreprocessor The data preprocessor + */ + function &setDataPreprocessor(& $dataPreprocessor) + { + $this->_dataPreprocessor =& $dataPreprocessor; + return $dataPreprocessor; + } + + /** + * Get the value to display + * + * @param array $values The values representing the data the marker 'points' + * to + * @return string The display value, this is the pre-preprocessor value, to + * support for customized with multiple values. i.e show 'x = y' or '(x, y)' + * @access private + */ + function _getDisplayValue($values) + { + switch ($this->_useValue) { + case IMAGE_GRAPH_VALUE_X: + $value = $values['X']; + break; + + case IMAGE_GRAPH_PCT_X_MIN: + $value = $values['PCT_MIN_X']; + break; + + case IMAGE_GRAPH_PCT_X_MAX: + $value = $values['PCT_MAX_X']; + break; + + case IMAGE_GRAPH_PCT_Y_MIN: + $value = $values['PCT_MIN_Y']; + break; + + case IMAGE_GRAPH_PCT_Y_MAX: + $value = $values['PCT_MAX_Y']; + break; + + case IMAGE_GRAPH_PCT_Y_TOTAL: + if (isset($values['SUM_Y'])) { + $value = 100 * $values['Y'] / $values['SUM_Y']; + } + else { + $value = 0; + } + break; + + case IMAGE_GRAPH_POINT_ID: + $value = $values['ID']; + break; + + default: + $value = $values['Y']; + break; + } + return $value; + } + + /** + * Draw the marker on the canvas + * + * @param int $x The X (horizontal) position (in pixels) of the marker on + * the canvas + * @param int $y The Y (vertical) position (in pixels) of the marker on the + * canvas + * @param array $values The values representing the data the marker 'points' + * to + * @access private + */ + function _drawMarker($x, $y, $values = false) + { + parent::_drawMarker($x, $y, $values); + + $value = $this->_getDisplayValue($values); + + if ($this->_dataPreprocessor) { + $value = $this->_dataPreprocessor->_process($value); + } + + if ($this->_defaultFontOptions !== false) { + $this->_canvas->setFont($this->_defaultFontOptions); + } else { + $this->_canvas->setFont($this->_getFont()); + } + + $width = $this->_canvas->textWidth($value); + $height = $this->_canvas->textHeight($value); + $offsetX = $width/2 + $this->_padding['left']; + $offsetY = $height/2 + $this->_padding['top']; + + $this->_getFillStyle(); + $this->_getBorderStyle(); + $this->_canvas->rectangle( + array( + 'x0' => $x - $offsetX, + 'y0' => $y - $offsetY, + 'x1' => $x + $offsetX, + 'y1' => $y + $offsetY + ) + ); + + $this->write($x, $y, $value, IMAGE_GRAPH_ALIGN_CENTER); + } + +} + +?>
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