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-<?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/Plotarea/Element.php
- */
-require_once 'Image/Graph/Plotarea/Element.php';
-
-/**
- * Diplays a normal linear axis (either X- or Y-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 extends Image_Graph_Plotarea_Element
-{
-
- /**
- * The type of the axis, possible values are:
- * <ul>
- * <li>IMAGE_GRAPH_AXIS_X / IMAGE_GRAPH_AXIS_HORIZONTAL
- * <li>IMAGE_GRAPH_AXIS_Y / IMAGE_GRAPH_AXIS_VERTICAL /
- * IMAGE_GRAPH_AXIS_Y_SECONDARY
- * </ul>
- * @var int
- * @access private
- */
- var $_type;
-
- /**
- * The minimum value the axis displays
- * @var int
- * @access private
- */
- var $_minimum = false;
-
- /**
- * The minimum value the axis has been explicitly set by the user
- * @var bool
- * @access private
- */
- var $_minimumSet = false;
-
- /**
- * The maximum value the axis displays
- * @var int
- * @access private
- */
- var $_maximum = false;
-
- /**
- * The maximum value the axis has been explicitly set by the user
- * @var bool
- * @access private
- */
- var $_maximumSet = false;
-
- /**
- * The value span of the axis.
- * This is primarily included for performance reasons
- * @var double
- * @access private
- */
- var $_axisSpan = false;
-
- /**
- * The value span of the axis.
- * This is primarily included for performance reasons
- * @var double
- * @access private
- */
- var $_axisValueSpan = false;
-
- /**
- * The axis padding.
- * The index 'low' specifies the padding for the low axis values (when not
- * inverted), i.e. to the left on an x-axis and on the bottom of an y-axis,
- * vice versa for 'high'.
- *
- * Axis padding does not make sense on a normal linear y-axis with a 'y-min'
- * of 0 since this corresponds to displaying a small part of the y-axis
- * below 0!
- *
- * @var array
- * @access private
- */
- var $_axisPadding = array('low' => 0, 'high' => 0);
-
- /**
- * The number of "pixels" representing 1 unit on the axis
- *
- * This is primarily included for performance reasons
- * @var double
- * @access private
- */
- var $_delta = false;
-
- /**
- * Specify if the axis should label the minimum value
- * @var bool
- * @access private
- */
- var $_showLabelMinimum = true;
-
- /**
- * Specify if the axis should label 0 (zero)
- * @var bool
- * @access private
- */
- var $_showLabelZero = false;
-
- /**
- * Specify if the axis should label the maximum value
- * @var bool
- * @access private
- */
- var $_showLabelMaximum = true;
-
- /**
- * Show arrow heads at the 'end' of the axis, default: false
- * @var bool
- * @access private
- */
- var $_showArrow = false;
-
- /**
- * Intersection data of axis
- * @var array
- * @access private
- */
- var $_intersect = array('value' => 'default', 'axis' => 'default');
-
- /**
- * The fixed size of the axis (i.e. width for y-axis, height for x-axis)
- * @var mixed
- * @access private
- */
- var $_fixedSize = false;
-
- /**
- * The label options
- *
- * Should text be shows, preferences for ticks. The indexes start at level
- * 1, which is chosen for readability
- * @var array
- * @access private
- */
- var $_labelOptions = array(
- 1 => array(
- 'interval' => 1,
- 'type' => 'auto',
- 'tick' => array(
- 'start' => -2,
- 'end' => 2,
- 'color' => false // default color
- ),
- 'showtext' => true,
- 'showoffset' => false,
- 'font' => array(),
- 'offset' => 0,
- 'position' => 'outside',
- )
- );
-
- /**
- * The labels that are shown.
- *
- * This is used to make values show only once...
- * @access private
- */
- var $_labelText = array();
-
- /**
- * A data preprocessor for formatting labels, fx showing dates as a standard
- * date instead of Unix time stamp
- * @var Image_Graph_DatePreProcessor
- * @access private
- * @see Image_Graph_DataPreProcessor
- */
- var $_dataPreProcessor = null;
-
- /**
- * Point marked in the axis
- * @var array
- * @access private
- */
- var $_marks = array();
-
- /**
- * Specifies whether the values should be 'pushed' by 0.5
- * @var bool
- * @access private
- */
- var $_pushValues = false;
-
- /**
- * The title of this axis
- * @var string
- * @access private
- */
- var $_title = '';
-
- /**
- * The font used for the title of this axis
- * @var Image_Graph_Font
- * @access private
- */
- var $_titleFont = false;
-
- /**
- * Invert the axis (i.e. if an y-axis normally displays minimum values at
- * the bottom, they are not displayed at the top
- * @var bool
- * @access private
- * @since 0.3.0dev3
- */
- var $_invert = false;
-
- /**
- * Transpose the axis (i.e. is a normal y-axis transposed, so thats it's not show
- * vertically as normally expected, but instead horizontally)
- * @var bool
- * @access private
- */
- var $_transpose = false;
-
- /**
- * Image_Graph_Axis [Constructor].
- * Normally a manual creation should not be necessary, axis are created
- * automatically by the {@link Image_Graph_Plotarea} constructor unless
- * explicitly defined otherwise
- *
- * @param int $type The type (direction) of the Axis, use IMAGE_GRAPH_AXIS_X
- * for an X-axis (default, may be omitted) and IMAGE_GRAPH_AXIS_Y for Y-
- * axis)
- */
- function Image_Graph_Axis($type = IMAGE_GRAPH_AXIS_X)
- {
- parent::Image_Graph_Element();
- $this->_type = $type;
- $this->_fillStyle = 'black';
- }
-
- /**
- * Push the values by 0.5 (for bar and step chart)
- *
- * @access private
- */
- function _pushValues()
- {
- $this->_pushValues = true;
- }
-
- /**
- * Sets the axis padding for a given position ('low' or 'high')
- * @param string $where The position
- * @param int $value The number of pixels to "pad"
- * @access private
- */
- function _setAxisPadding($where, $value)
- {
- $this->_axisPadding[$where] = $value;
- }
-
- /**
- * Gets the font of the title.
- *
- * If not font has been set, the parent font is propagated through it's
- * children.
- *
- * @return array An associated array used for canvas
- * @access private
- */
- function _getTitleFont()
- {
- if ($this->_titleFont === false) {
- if ($this->_defaultFontOptions !== false) {
- return $this->_defaultFontOptions;
- } else {
- return $this->_getFont();
- }
- } else {
- if (is_object($this->_titleFont)) {
- return $this->_titleFont->_getFont();
- } elseif (is_array($this->_titleFont)) {
- return $this->_getFont($this->_titleFont);
- } elseif (is_int($this->_titleFont)) {
- return $this->_getFont(array('size' => $this->_titleFont));
- }
- }
- return array();
- }
-
- /**
- * Shows a label for the the specified values.
- *
- * Allowed values are combinations of:
- * <ul>
- * <li>IMAGE_GRAPH_LABEL_MINIMUM
- * <li>IMAGE_GRAPH_LABEL_ZERO
- * <li>IMAGE_GRAPH_LABEL_MAXIMUM
- * </ul>
- * By default none of these are shows on the axis
- *
- * @param int $value The values to show labels for
- */
- function showLabel($value)
- {
- $this->_showLabelMinimum = ($value & IMAGE_GRAPH_LABEL_MINIMUM);
- $this->_showLabelZero = ($value & IMAGE_GRAPH_LABEL_ZERO);
- $this->_showLabelMaximum = ($value & IMAGE_GRAPH_LABEL_MAXIMUM);
- }
-
- /**
- * Sets a data preprocessor for formatting the axis labels
- *
- * @param Image_Graph_DataPreprocessor $dataPreProcessor The data preprocessor
- * @see Image_Graph_DataPreprocessor
- */
- function setDataPreProcessor(& $dataPreProcessor)
- {
- $this->_dataPreProcessor =& $dataPreProcessor;
- }
-
- /**
- * Gets the minimum value the axis will show
- *
- * @return double The minumum value
- * @access private
- */
- function _getMinimum()
- {
- return $this->_minimum;
- }
-
- /**
- * Gets the maximum value the axis will show
- *
- * @return double The maximum value
- * @access private
- */
- function _getMaximum()
- {
- return $this->_maximum;
- }
-
- /**
- * Sets the minimum value the axis will show
- *
- * @param double $minimum The minumum value to use on the axis
- * @access private
- */
- function _setMinimum($minimum)
- {
- if ($this->_minimum === false) {
- $this->forceMinimum($minimum, false);
- } else {
- $this->forceMinimum(min($this->_minimum, $minimum), false);
- }
- }
-
- /**
- * Sets the maximum value the axis will show
- *
- * @param double $maximum The maximum value to use on the axis
- * @access private
- */
- function _setMaximum($maximum)
- {
- if ($this->_maximum === false) {
- $this->forceMaximum($maximum, false);
- } else {
- $this->forceMaximum(max($this->_maximum, $maximum), false);
- }
- }
-
- /**
- * Forces the minimum value of the axis
- *
- * @param double $minimum The minumum value to use on the axis
- * @param bool $userEnforce This value should not be set, used internally
- */
- function forceMinimum($minimum, $userEnforce = true)
- {
- if (($userEnforce) || (!$this->_minimumSet)) {
- $this->_minimum = $minimum;
- $this->_minimumSet = $userEnforce;
- }
- $this->_calcLabelInterval();
- }
-
- /**
- * Forces the maximum value of the axis
- *
- * @param double $maximum The maximum value to use on the axis
- * @param bool $userEnforce This value should not be set, used internally
- */
- function forceMaximum($maximum, $userEnforce = true)
- {
- if (($userEnforce) || (!$this->_maximumSet)) {
- $this->_maximum = $maximum;
- $this->_maximumSet = $userEnforce;
- }
- $this->_calcLabelInterval();
- }
-
- /**
- * Show an arrow head on the 'end' of the axis
- */
- function showArrow()
- {
- $this->_showArrow = true;
- }
-
- /**
- * Do not show an arrow head on the 'end' of the axis (default)
- */
- function hideArrow()
- {
- $this->_showArrow = false;
- }
-
- /**
- * Return the label distance.
- *
- * @param int $level The label level to return the distance of
- * @return int The distance between 2 adjacent labels
- * @access private
- */
- function _labelDistance($level = 1)
- {
- $l1 = $this->_getNextLabel(false, $level);
- $l2 = $this->_getNextLabel($l1, $level);;
- return abs($this->_point($l2) - $this->_point($l1));
- }
-
- /**
- * Sets an interval for when labels are shown on the axis.
- *
- * By default 'auto' is used, forcing the axis to calculate a approximate
- * best label interval to be used. Specify an array to use user-defined
- * values for labels.
- *
- * @param mixed $labelInterval The interval with which labels are shown
- * @param int $level The label level to set the interval on
- */
- function setLabelInterval($labelInterval = 'auto', $level = 1)
- {
- if (!isset($this->_labelOptions[$level])) {
- $this->_labelOptions[$level] = array();
- }
-
- if ($labelInterval === 'auto') {
- $this->_labelOptions[$level]['type'] = 'auto';
- $this->_calcLabelInterval();
- } else {
- $this->_labelOptions[$level]['type'] = 'manual';
- $this->_labelOptions[$level]['interval'] = $labelInterval;
- }
- }
-
- /**
- * Sets options for the label at a specific level.
- *
- * Possible options are:
- *
- * 'showtext' true or false whether label text should be shown or not
- *
- * 'showoffset' should the label be shown at an offset, i.e. should the
- * label be shown at a position so that it does not overlap with prior
- * levels. Only applies to multilevel labels with text
- *
- * 'font' The font options as an associated array
- *
- * 'position' The position at which the labels are written ('inside' or
- * 'outside' the axis). NB! This relative position only applies to the
- * default location of the axis, i.e. if an x-axis is inverted then
- * 'outside' still refers to the "left" side of a normal y-axis (since this
- * is normally 'outside') but the actual output will be labels on the
- * "inside"!
- *
- * 'format' To format the label text according to a sprintf statement
- *
- * 'dateformat' To format the label as a date, fx. j. M Y = 29. Jun 2005
- *
- * @param string $option The label option name (see detailed description
- * for possible values)
- * @param mixed $value The value for the option
- * @param int $level The label level to set the interval on
- */
- function setLabelOption($option, $value, $level = 1)
- {
- if (!isset($this->_labelOptions[$level])) {
- $this->_labelOptions[$level] = array('type' => 'auto');
- }
-
- $this->_labelOptions[$level][$option] = $value;
- }
-
- /**
- * Sets options for the label at a specific level.
- *
- * The possible options are specified in {@link Image_Graph_Axis::
- * setLabelOption()}.
- *
- * @param array $options An assciated array with label options
- * @param int $level The label level to set the interval on
- */
- function setLabelOptions($options, $level = 1)
- {
- if (is_array($options)) {
- if (isset($this->_labelOptions[$level])) {
- $this->_labelOptions[$level] = array_merge($this->_labelOptions[$level], $options);
- } else {
- $this->_labelOptions[$level] = $options;
- }
-
- }
- }
-
- /**
- * Sets the title of this axis.
- *
- * This is used as an alternative (maybe better) method, than using layout's
- * for axis-title generation.
- *
- * To use the current propagated font, but just set it vertically, simply
- * pass 'vertical' as second parameter for vertical alignment down-to-up or
- * 'vertical2' for up-to-down alignment.
- *
- * @param string $title The title of this axis
- * @param Image_Graph_Font $font The font used for the title
- * @since 0.3.0dev2
- */
- function setTitle($title, $font = false)
- {
- $this->_title = $title;
- if ($font === 'vertical') {
- $this->_titleFont = array('vertical' => true, 'angle' => 90);
- } elseif ($font === 'vertical2') {
- $this->_titleFont = array('vertical' => true, 'angle' => 270);
- } else {
- $this->_titleFont =& $font;
- }
- }
-
- /**
- * Sets a fixed "size" for the axis.
- *
- * If the axis is any type of y-axis the size relates to the width of the
- * axis, if an x-axis is concerned the size is the height.
- *
- * @param int $size The fixed size of the axis
- * @since 0.3.0dev5
- */
- function setFixedSize($size)
- {
- $this->_fixedSize = $size;
- }
-
- /**
- * 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)
- {
- return $value - $this->_getMinimum() + ($this->_pushValues ? 0.5 : 0);
- }
-
- /**
- * Apply the dataset to the axis
- *
- * @param Image_Graph_Dataset $dataset The dataset
- * @access private
- */
- function _applyDataset(&$dataset)
- {
- if ($this->_type == IMAGE_GRAPH_AXIS_X) {
- $this->_setMinimum($dataset->minimumX());
- $this->_setMaximum($dataset->maximumX());
- } else {
- $this->_setMinimum($dataset->minimumY());
- $this->_setMaximum($dataset->maximumY());
- }
- }
-
- /**
- * Get the pixel position represented by a value on the canvas
- *
- * @param double $value the value to get the pixel-point for
- * @return double The pixel position along the axis
- * @access private
- */
- function _point($value)
- {
- if ((($this->_type == IMAGE_GRAPH_AXIS_X) && (!$this->_transpose)) ||
- (($this->_type != IMAGE_GRAPH_AXIS_X) && ($this->_transpose)))
- {
- if ($this->_invert) {
- return max($this->_left, $this->_right - $this->_axisPadding['high'] - $this->_delta * $this->_value($value));
- } else {
- return min($this->_right, $this->_left + $this->_axisPadding['low'] + $this->_delta * $this->_value($value));
- }
- } else {
- if ($this->_invert) {
- return min($this->_bottom, $this->_top + $this->_axisPadding['high'] + $this->_delta * $this->_value($value));
- } else {
- return max($this->_top, $this->_bottom - $this->_axisPadding['low'] - $this->_delta * $this->_value($value));
- }
- }
- }
-
-
- /**
- * Get the axis intersection pixel position
- *
- * This is only to be called prior to output! I.e. between the user
- * invokation of Image_Graph::done() and any actual output is performed.
- * This is because it can change the axis range.
- *
- * @param double $value the intersection value to get the pixel-point for
- * @return double The pixel position along the axis
- * @access private
- */
- function _intersectPoint($value)
- {
-
- if (($value === 'min') || ($value < $this->_getMinimum())) {
- if ($this->_type == IMAGE_GRAPH_AXIS_X) {
- if ($this->_invert) {
- return ($this->_transpose ? $this->_top : $this->_right);
- } else {
- return ($this->_transpose ? $this->_bottom : $this->_left);
- }
- } else {
- if ($this->_invert) {
- return ($this->_transpose ? $this->_right : $this->_top);
- } else {
- return ($this->_transpose ? $this->_left : $this->_bottom);
- }
- }
- } elseif (($value === 'max') || ($value > $this->_getMaximum())) {
- if ($this->_type == IMAGE_GRAPH_AXIS_X) {
- if ($this->_invert) {
- return ($this->_transpose ? $this->_bottom : $this->_left);
- } else {
- return ($this->_transpose ? $this->_top : $this->_right);
- }
- } else {
- if ($this->_invert) {
- return ($this->_transpose ? $this->_left : $this->_bottom);
- } else {
- return ($this->_transpose ? $this->_right : $this->_top);
- }
- }
- }
-
- return $this->_point($value);
- }
-
- /**
- * Calculate the delta value (the number of pixels representing one unit
- * on the axis)
- *
- * @return double The label interval
- * @access private
- */
- function _calcDelta()
- {
- if ($this->_axisValueSpan == 0) {
- $this->_delta = false;
- } elseif ($this->_type == IMAGE_GRAPH_AXIS_X) {
- $this->_delta = (($this->_transpose ? $this->height() : $this->width()) - ($this->_axisPadding['low'] + $this->_axisPadding['high'])) / ($this->_axisValueSpan + ($this->_pushValues ? 1 : 0));
- } else {
- $this->_delta = (($this->_transpose ? $this->width() : $this->height()) - ($this->_axisPadding['low'] + $this->_axisPadding['high'])) / ($this->_axisValueSpan + ($this->_pushValues ? 1 : 0));
- }
- }
-
- /**
- * Calculate the label interval
- *
- * If explicitly defined this will be calucated to an approximate best.
- *
- * @return double The label interval
- * @access private
- */
- function _calcLabelInterval()
- {
- $min = $this->_getMinimum();
- $max = $this->_getMaximum();
-
- $this->_axisValueSpan = $this->_axisSpan = abs($max - $min);
-
- if ((!empty($min)) && (!empty($max)) && ($min > $max)) {
- $this->_labelOptions[1]['interval'] = 1;
- return true;
- }
-
- $span = 0;
- foreach($this->_labelOptions as $level => $labelOptions) {
- if ((!isset($labelOptions['type'])) || ($labelOptions['type'] !== 'auto')) {
- $span = false;
- } elseif ($level == 1) {
- $span = $this->_axisValueSpan;
- } else {
- $l1 = $this->_getNextLabel(false, $level - 1);
- $l2 = $this->_getNextLabel($l1, $level - 1);
- if ((!is_numeric($l1)) || (!is_numeric($l2))) {
- $span == false;
- } else {
- $span = $l2 - $l1;
- }
- }
-
- if ($span !== false) {
- $interval = pow(10, floor(log10($span)));
-
- if ($interval == 0) {
- $interval = 1;
- }
-
- if ((($span) / $interval) < 3) {
- $interval = $interval / 4;
- } elseif ((($span) / $interval) < 5) {
- $interval = $interval / 2;
- } elseif ((($span) / $interval) > 10) {
- $interval = $interval * 2;
- }
-
- if (($interval -floor($interval) == 0.5) && ($interval != 0.5)) {
- $interval = floor($interval);
- }
-
- // just to be 100% sure that an interval of 0 is not returned some
- // additional checks are performed
- if ($interval == 0) {
- $interval = ($span) / 5;
- }
-
- if ($interval == 0) {
- $interval = 1;
- }
-
- $this->_labelOptions[$level]['interval'] = $interval;
- }
- }
- }
-
- /**
- * Get next label point
- *
- * @param doubt $currentLabel The current label, if omitted or false, the
- * first is returned
- * @param int $level The label level to get the next label from
- * @return double The next label point
- * @access private
- */
- function _getNextLabel($currentLabel = false, $level = 1)
- {
- if (!isset($this->_labelOptions[$level])) {
- return false;
- }
-
- if (is_array($this->_labelOptions[$level]['interval'])) {
- if ($currentLabel === false) {
- reset($this->_labelOptions[$level]['interval']);
- }
-
- if (list(, $label) = each($this->_labelOptions[$level]['interval'])) {
- return $label;
- } else {
- return false;
- }
- } else {
- $li = $this->_labelInterval($level);
- if (($this->_axisSpan == 0) || ($this->_axisValueSpan == 0) ||
- ($li == 0)
- ) {
- return false;
- }
-
- $labelInterval = $this->_axisSpan / ($this->_axisValueSpan / $li);
-
- if ($labelInterval == 0) {
- return false;
- }
-
- if ($currentLabel === false) {
- $label = ((int) ($this->_getMinimum() / $labelInterval)) *
- $labelInterval - $labelInterval;
- while ($label < $this->_getMinimum()) {
- $label += $labelInterval;
- }
- return $label;
- } else {
- if ($currentLabel + $labelInterval > $this->_getMaximum()) {
- return false;
- } else {
- return $currentLabel + $labelInterval;
- }
- }
- }
- }
-
- /**
- * Get the interval with which labels are shown on the axis.
- *
- * If explicitly defined this will be calucated to an approximate best.
- *
- * @param int $level The label level to get the label interval for
- * @return double The label interval
- * @access private
- */
- function _labelInterval($level = 1)
- {
- if ((!isset($this->_labelOptions[$level])) ||
- (!isset($this->_labelOptions[$level]['interval']))
- ) {
- return 1;
- }
-
- return (is_array($this->_labelOptions[$level]['interval'])
- ? 1
- : $this->_labelOptions[$level]['interval']
- );
- }
-
- /**
- * 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 (!$this->_visible) {
- return 0;
- }
-
- if ($this->_fixedSize !== false) {
- return $this->_fixedSize;
- }
-
- krsort($this->_labelOptions);
-
- $totalMaxSize = 0;
-
- foreach ($this->_labelOptions as $level => $labelOptions) {
- if ((isset($labelOptions['showoffset'])) && ($labelOptions['showoffset'] === true)) {
- $this->_labelOptions[$level]['offset'] += $totalMaxSize;
- } elseif (!isset($this->_labelOptions[$level]['offset'])) {
- $this->_labelOptions[$level]['offset'] = 0;
- }
- if (
- (isset($labelOptions['showtext'])) &&
- ($labelOptions['showtext'] === true) &&
- (
- (!isset($labelOptions['position'])) ||
- ($labelOptions['position'] == 'outside')
- )
- ) {
- if (isset($labelOptions['font'])) {
- $font = $this->_getFont($labelOptions['font']);
- } else {
- if ($this->_defaultFontOptions !== false) {
- $font = $this->_defaultFontOptions;
- } else {
- $font = $this->_getFont();
- }
- }
- $this->_canvas->setFont($font);
-
- $value = false;
- $maxSize = 0;
- while (($value = $this->_getNextLabel($value, $level)) !== false) {
- if ((abs($value) > 0.0001) && ($value > $this->_getMinimum()) &&
- ($value < $this->_getMaximum()))
- {
- if (is_object($this->_dataPreProcessor)) {
- $labelText = $this->_dataPreProcessor->_process($value);
- } elseif (isset($labelOptions['format'])) {
- $labelText = sprintf($labelOptions['format'], $value);
- } elseif (isset($labelOptions['dateformat'])) {
- $labelText = date($labelOptions['dateformat'], $value);
- } else {
- $labelText = $value;
- }
-
- if ((($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 ((isset($labelOptions['showoffset'])) && ($labelOptions['showoffset'] === true)) {
- $totalMaxSize += $maxSize;
- } else {
- $totalMaxSize = max($totalMaxSize, $maxSize);
- }
- }
- }
-
- if ($this->_title) {
- $this->_canvas->setFont($this->_getTitleFont());
-
- if ((($this->_type == IMAGE_GRAPH_AXIS_X) && (!$this->_transpose)) ||
- (($this->_type != IMAGE_GRAPH_AXIS_X) && ($this->_transpose)))
- {
- $totalMaxSize += $this->_canvas->textHeight($this->_title);
- } else {
- $totalMaxSize += $this->_canvas->textWidth($this->_title);
- }
- $totalMaxSize += 10;
- }
-
- return $totalMaxSize + 3;
- }
-
- /**
- * Adds a mark to the axis at the specified value
- *
- * @param double $value The value
- * @param double $value2 The second value (for a ranged mark)
- */
- function addMark($value, $value2 = false, $text = false)
- {
- if ($value2 === false) {
- $this->_marks[] = $value;
- } else {
- $this->_marks[] = array($value, $value2);
- }
- }
-
- /**
- * Is the axis numeric or not?
- *
- * @return bool True if numeric, false if not
- * @access private
- */
- function _isNumeric()
- {
- return true;
- }
-
- /**
- * Set the major tick appearance.
- *
- * The positions are specified in pixels relative to the axis, meaning that
- * a value of -1 for start will draw the major tick 'line' starting at 1
- * pixel outside (negative) value the axis (i.e. below an x-axis and to the
- * left of a normal y-axis).
- *
- * @param int $start The start position relative to the axis
- * @param int $end The end position relative to the axis
- * @param int $level The label level to set the tick options for
- * @since 0.3.0dev2
- */
- function setTickOptions($start, $end, $level = 1)
- {
- if (!isset($this->_labelOptions[$level])) {
- $this->_labelOptions[$level] = array();
- }
-
- $this->_labelOptions[$level]['tick'] = array(
- 'start' => $start,
- 'end' => $end
- );
- }
-
- /**
- * Invert the axis direction
- *
- * If the minimum values are normally displayed fx. at the bottom setting
- * axis inversion to true, will cause the minimum values to be displayed at
- * the top and maximum at the bottom.
- *
- * @param bool $invert True if the axis is to be inverted, false if not
- * @since 0.3.0dev3
- */
- function setInverted($invert)
- {
- $this->_invert = $invert;
- }
-
- /**
- * Set axis intersection.
- *
- * Sets the value at which the axis intersects other axis, fx. at which Y-
- * value the x-axis intersects the y-axis (normally at 0).
- *
- * Possible values are 'default', 'min', 'max' or a number between axis min
- * and max (the value will automatically be limited to this range).
- *
- * For a coordinate system with 2 y-axis, the x-axis can either intersect
- * the primary or the secondary y-axis. To make the x-axis intersect the
- * secondary y-axis at a given value pass IMAGE_GRAPH_AXIS_Y_SECONDARY as
- * second parameter.
- *
- * @param mixed $intersection The value at which the axis intersect the
- * 'other' axis
- * @param mixed $axis The axis to intersect. Only applies to x-axis with
- * both a primary and secondary y-axis available.
- * @since 0.3.0dev2
- */
- function setAxisIntersection($intersection, $axis = 'default')
- {
- if ($axis == 'x') {
- $axis = IMAGE_GRAPH_AXIS_X;
- } elseif ($axis == 'y') {
- $axis = IMAGE_GRAPH_AXIS_Y;
- } elseif ($axis == 'ysec') {
- $axis = IMAGE_GRAPH_AXIS_Y_SECONDARY;
- }
- $this->_intersect = array(
- 'value' => $intersection,
- 'axis' => $axis
- );
- }
-
- /**
- * Get axis intersection data.
- *
- * @return array An array with the axis intersection data.
- * @since 0.3.0dev2
- * @access private
- */
- function _getAxisIntersection()
- {
- $value = $this->_intersect['value'];
- $axis = $this->_intersect['axis'];
- if (($this->_type == IMAGE_GRAPH_AXIS_Y)
- || ($this->_type == IMAGE_GRAPH_AXIS_Y_SECONDARY)
- ) {
- $axis = IMAGE_GRAPH_AXIS_X;
- } elseif ($axis == 'default') {
- $axis = IMAGE_GRAPH_AXIS_Y;
- }
-
- if ($value === 'default') {
- switch ($this->_type) {
- case IMAGE_GRAPH_AXIS_Y:
- $value = 'min';
- break;
- case IMAGE_GRAPH_AXIS_Y_SECONDARY:
- $value = 'max';
- break;
- case IMAGE_GRAPH_AXIS_X:
- $value = 0;
- break;
- }
- }
-
- return array('value' => $value, 'axis' => $axis);
- }
-
- /**
- * Resets the elements
- *
- * @access private
- */
- function _reset()
- {
- parent::_reset();
- $this->_labelText = array();
- }
-
- /**
- * Output an axis tick mark.
- *
- * @param int $value The value to output
- * @param int $level The label level to draw the tick for
- * @access private
- */
- function _drawTick($value, $level = 1)
- {
- if (isset($this->_labelOptions[$level])) {
- $labelOptions = $this->_labelOptions[$level];
- $labelPosition = $this->_point($value);
-
- if (isset($labelOptions['offset'])) {
- $offset = $labelOptions['offset'];
- } else {
- $offset = 0;
- }
-
- if ((isset($labelOptions['showtext'])) && ($labelOptions['showtext'] === true)) {
- if (is_object($this->_dataPreProcessor)) {
- $labelText = $this->_dataPreProcessor->_process($value);
- } elseif (isset($labelOptions['format'])) {
- $labelText = sprintf($labelOptions['format'], $value);
- } elseif (isset($labelOptions['dateformat'])) {
- $labelText = date($labelOptions['dateformat'], $value);
- } else {
- $labelText = $value;
- }
-
- if (!in_array($labelText, $this->_labelText)) {
- $this->_labelText[] = $labelText;
-
- if (isset($labelOptions['font'])) {
- $font = $this->_getFont($labelOptions['font']);
- } else {
- if ($this->_defaultFontOptions !== false) {
- $font = $this->_defaultFontOptions;
- } else {
- $font = $this->_getFont();
- }
- }
- $this->_canvas->setFont($font);
-
- if (
- (isset($labelOptions['position'])) &&
- ($labelOptions['position'] == 'inside')
- ) {
- $labelInside = true;
- } else {
- $labelInside = false;
- }
-
- if ($this->_type == IMAGE_GRAPH_AXIS_Y) {
- if ($this->_transpose) {
- if ($labelInside) {
- $this->write(
- $labelPosition,
- $this->_top - 3 - $offset,
- $labelText,
- IMAGE_GRAPH_ALIGN_BOTTOM | IMAGE_GRAPH_ALIGN_CENTER_X,
- $font
- );
- } else {
- $this->write(
- $labelPosition,
- $this->_top + 6 + $offset + $font['size'] * (substr_count($labelText, "\n") + 1),
- $labelText,
- IMAGE_GRAPH_ALIGN_BOTTOM | IMAGE_GRAPH_ALIGN_CENTER_X,
- $font
- );
- }
- }
- else {
- if ($labelInside) {
- $this->write(
- $this->_right + 3 + $offset,
- $labelPosition,
- $labelText,
- IMAGE_GRAPH_ALIGN_CENTER_Y | IMAGE_GRAPH_ALIGN_LEFT,
- $font
- );
- } else {
- $this->write(
- $this->_right - 3 - $offset,
- $labelPosition,
- $labelText,
- IMAGE_GRAPH_ALIGN_CENTER_Y | IMAGE_GRAPH_ALIGN_RIGHT,
- $font
- );
- }
- }
- } elseif ($this->_type == IMAGE_GRAPH_AXIS_Y_SECONDARY) {
- if ($this->_transpose) {
- if ($labelInside) {
- $this->write(
- $labelPosition,
- $this->_bottom + 6 + $offset + $font['size'] * (substr_count($labelText, "\n") + 1),
- $labelText,
- IMAGE_GRAPH_ALIGN_BOTTOM | IMAGE_GRAPH_ALIGN_CENTER_X,
- $font
- );
- } else {
- $this->write(
- $labelPosition,
- $this->_bottom - 3 - $offset,
- $labelText,
- IMAGE_GRAPH_ALIGN_BOTTOM | IMAGE_GRAPH_ALIGN_CENTER_X,
- $font
- );
- }
- }
- else {
- if ($labelInside) {
- $this->write(
- $this->_left - 3 - $offset,
- $labelPosition,
- $labelText,
- IMAGE_GRAPH_ALIGN_CENTER_Y | IMAGE_GRAPH_ALIGN_RIGHT,
- $font
- );
- } else {
- $this->write(
- $this->_left + 3 + $offset,
- $labelPosition,
- $labelText,
- IMAGE_GRAPH_ALIGN_CENTER_Y | IMAGE_GRAPH_ALIGN_LEFT,
- $font
- );
- }
- }
- } else {
- if ($this->_transpose) {
- if ($labelInside) {
- $this->write(
- $this->_right + 3 + $offset,
- $labelPosition,
- $labelText,
- IMAGE_GRAPH_ALIGN_CENTER_Y | IMAGE_GRAPH_ALIGN_LEFT,
- $font
- );
- } else {
- $this->write(
- $this->_right - 3 - $offset,
- $labelPosition,
- $labelText,
- IMAGE_GRAPH_ALIGN_CENTER_Y | IMAGE_GRAPH_ALIGN_RIGHT,
- $font
- );
- }
- }
- else {
- if ($labelInside === true) {
- $this->write(
- $labelPosition,
- $this->_top - 3 - $offset,
- $labelText,
- IMAGE_GRAPH_ALIGN_CENTER_X | IMAGE_GRAPH_ALIGN_BOTTOM,
- $font
- );
- } else {
- $this->write(
- $labelPosition,
- $this->_top + 6 + $offset + $font['size'] * (substr_count($labelText, "\n") + 1),
- $labelText,
- IMAGE_GRAPH_ALIGN_CENTER_X | IMAGE_GRAPH_ALIGN_BOTTOM,
- $font
- );
- }
- }
- }
- }
- }
-
- $tickColor = false;
- if (isset($this->_labelOptions[$level]['tick'])) {
- if (isset($this->_labelOptions[$level]['tick']['start'])) {
- $tickStart = $this->_labelOptions[$level]['tick']['start'];
- } else {
- $tickStart = false;
- }
-
- if (isset($this->_labelOptions[$level]['tick']['end'])) {
- $tickEnd = $this->_labelOptions[$level]['tick']['end'];
- } else {
- $tickEnd = false;
- }
-
- if ((isset($this->_labelOptions[$level]['tick']['color'])) && ($this->_labelOptions[$level]['tick']['color'] !== false)) {
- $tickColor = $this->_labelOptions[$level]['tick']['color'];
- }
- }
-
- if ($tickStart === false) {
- $tickStart = -2;
- }
-
- if ($tickEnd === false) {
- $tickEnd = 2;
- }
-
- if ($tickColor !== false) {
- $this->_canvas->setLineColor($tickColor);
- }
- else {
- $this->_getLineStyle();
- }
-
- if ($this->_type == IMAGE_GRAPH_AXIS_Y) {
- if ($tickStart === 'auto') {
- $tickStart = -$offset;
- }
- if ($this->_transpose) {
- $this->_canvas->line(
- array(
- 'x0' => $labelPosition,
- 'y0' => $this->_top + $tickStart,
- 'x1' => $labelPosition,
- 'y1' => $this->_top + $tickEnd
- )
- );
- }
- else {
- $this->_canvas->line(
- array(
- 'x0' => $this->_right + $tickStart,
- 'y0' => $labelPosition,
- 'x1' => $this->_right + $tickEnd,
- 'y1' => $labelPosition
- )
- );
- }
- } elseif ($this->_type == IMAGE_GRAPH_AXIS_Y_SECONDARY) {
- if ($tickStart === 'auto') {
- $tickStart = $offset;
- }
- if ($this->_transpose) {
- $this->_canvas->line(
- array(
- 'x0' => $labelPosition,
- 'y0' => $this->_bottom - $tickStart,
- 'x1' => $labelPosition,
- 'y1' => $this->_bottom - $tickEnd
- )
- );
- }
- else {
- $this->_canvas->line(
- array(
- 'x0' => $this->_left - $tickStart,
- 'y0' => $labelPosition,
- 'x1' => $this->_left - $tickEnd,
- 'y1' => $labelPosition
- )
- );
- }
- } else {
- if ($tickStart === 'auto') {
- $tickStart = $offset;
- }
- if ($this->_transpose) {
- $this->_canvas->line(
- array(
- 'x0' => $this->_right + $tickStart,
- 'y0' => $labelPosition,
- 'x1' => $this->_right + $tickEnd,
- 'y1' => $labelPosition
- )
- );
- }
- else {
- $this->_canvas->line(
- array(
- 'x0' => $labelPosition,
- 'y0' => $this->_top - $tickStart,
- 'x1' => $labelPosition,
- 'y1' => $this->_top - $tickEnd
- )
- );
- }
- }
- }
- }
-
- /**
- * Draws axis lines.
- *
- * @access private
- */
- function _drawAxisLines()
- {
- if ($this->_type == IMAGE_GRAPH_AXIS_X) {
- $this->_getLineStyle();
- $this->_getFillStyle();
-
- if ($this->_transpose) {
- $data = array(
- 'x0' => $this->_right,
- 'y0' => $this->_top,
- 'x1' => $this->_right,
- 'y1' => $this->_bottom
- );
- } else {
- $data = array(
- 'x0' => $this->_left,
- 'y0' => $this->_top,
- 'x1' => $this->_right,
- 'y1' => $this->_top
- );
- }
-
- if ($this->_showArrow) {
- if ($this->_getMaximum() <= 0) {
- $data['end0'] = 'arrow2';
- $data['size0'] = 7;
- }
- else {
- $data['end1'] = 'arrow2';
- $data['size1'] = 7;
- }
- }
-
- $this->_canvas->line($data);
-
- if ($this->_title) {
- if (!$this->_transpose) {
- $y = $this->_bottom;
- $x = $this->_left + $this->width() / 2;
- $this->write($x, $y, $this->_title, IMAGE_GRAPH_ALIGN_CENTER_X + IMAGE_GRAPH_ALIGN_BOTTOM, $this->_getTitleFont());
- }
- else {
- $y = $this->_top + $this->height() / 2;
- $x = $this->_left;
- $this->write($x, $y, $this->_title, IMAGE_GRAPH_ALIGN_LEFT + IMAGE_GRAPH_ALIGN_CENTER_Y, $this->_getTitleFont());
- }
- }
- } elseif ($this->_type == IMAGE_GRAPH_AXIS_Y_SECONDARY) {
- $this->_getLineStyle();
- $this->_getFillStyle();
-
- if ($this->_transpose) {
- $data = array(
- 'x0' => $this->_left,
- 'y0' => $this->_bottom,
- 'x1' => $this->_right,
- 'y1' => $this->_bottom
- );
- } else {
- $data = array(
- 'x0' => $this->_left,
- 'y0' => $this->_bottom,
- 'x1' => $this->_left,
- 'y1' => $this->_top
- );
- }
- if ($this->_showArrow) {
- if ($this->_getMaximum() <= 0) {
- $data['end0'] = 'arrow2';
- $data['size0'] = 7;
- }
- else {
- $data['end1'] = 'arrow2';
- $data['size1'] = 7;
- }
- }
- $this->_canvas->line($data);
-
- if ($this->_title) {
- if ($this->_transpose) {
- $y = $this->_top;
- $x = $this->_left + $this->width() / 2;
- $this->write($x, $y, $this->_title, IMAGE_GRAPH_ALIGN_CENTER_X + IMAGE_GRAPH_ALIGN_TOP, $this->_getTitleFont());
- }
- else {
- $y = $this->_top + $this->height() / 2;
- $x = $this->_right;
- $this->write($x, $y, $this->_title, IMAGE_GRAPH_ALIGN_RIGHT + IMAGE_GRAPH_ALIGN_CENTER_Y, $this->_getTitleFont());
- }
- }
- } else {
- $this->_getLineStyle();
- $this->_getFillStyle();
-
- if ($this->_transpose) {
- $data = array(
- 'x0' => $this->_left,
- 'y0' => $this->_top,
- 'x1' => $this->_right,
- 'y1' => $this->_top
- );
- } else {
- $data = array(
- 'x0' => $this->_right,
- 'y0' => $this->_bottom,
- 'x1' => $this->_right,
- 'y1' => $this->_top
- );
- }
- if ($this->_showArrow) {
- if ($this->_getMaximum() <= 0) {
- $data['end0'] = 'arrow2';
- $data['size0'] = 7;
- }
- else {
- $data['end1'] = 'arrow2';
- $data['size1'] = 7;
- }
- }
- $this->_canvas->line($data);
-
- if ($this->_title) {
- if ($this->_transpose) {
- $y = $this->_bottom;
- $x = $this->_left + $this->width() / 2;
- $this->write($x, $y, $this->_title, IMAGE_GRAPH_ALIGN_CENTER_X + IMAGE_GRAPH_ALIGN_BOTTOM, $this->_getTitleFont());
- }
- else {
- $y = $this->_top + $this->height() / 2;
- $x = $this->_left;
- $this->write($x, $y, $this->_title, IMAGE_GRAPH_ALIGN_LEFT + IMAGE_GRAPH_ALIGN_CENTER_Y, $this->_getTitleFont());
- }
- }
- }
- }
-
- /**
- * Causes the object to update all sub elements coordinates
- *
- * (Image_Graph_Common, does not itself have coordinates, this is basically
- * an abstract method)
- *
- * @access private
- */
- function _updateCoords()
- {
- parent::_updateCoords();
- $this->_calcDelta();
- }
-
- /**
- * Output the axis
- *
- * @return bool Was the output 'good' (true) or 'bad' (false).
- * @access private
- */
- function _done()
- {
- $this->_canvas->startGroup(get_class($this));
-
- if (parent::_done() === false) {
- return false;
- }
-
- $this->_drawAxisLines();
-
- $this->_canvas->startGroup(get_class($this) . '_ticks');
- ksort($this->_labelOptions);
- foreach ($this->_labelOptions as $level => $labelOption) {
- $value = false;
- while (($value = $this->_getNextLabel($value, $level)) !== false) {
- if ((((abs($value) > 0.0001) || ($this->_showLabelZero)) &&
- (($value > $this->_getMinimum()) || ($this->_showLabelMinimum)) &&
- (($value < $this->_getMaximum()) || ($this->_showLabelMaximum))) &&
- ($value >= $this->_getMinimum()) && ($value <= $this->_getMaximum())
- ) {
- $this->_drawTick($value, $level);
- }
- }
- }
- $this->_canvas->endGroup();
-
- $tickStart = -3;
- $tickEnd = 2;
-
- foreach ($this->_marks as $mark) {
- if (is_array($mark)) {
- if ($this->_type == IMAGE_GRAPH_AXIS_X) {
- if ($this->_transpose) {
- $x0 = $this->_right + $tickStart;
- $y0 = $this->_point($mark[1]);
- $x1 = $this->_right + $tickEnd;
- $y1 = $this->_point($mark[0]);
- }
- else {
- $x0 = $this->_point($mark[0]);
- $y0 = $this->_top + $tickStart;
- $x1 = $this->_point($mark[1]);
- $y1 = $this->_top + $tickEnd;
- }
- } elseif ($this->_type == IMAGE_GRAPH_AXIS_Y) {
- if ($this->_transpose) {
- $x0 = $this->_point($mark[0]);
- $y0 = $this->_top + $tickStart;
- $x1 = $this->_point($mark[1]);
- $y1 = $this->_top + $tickEnd;
- }
- else {
- $x0 = $this->_right + $tickStart;
- $y0 = $this->_point($mark[1]);
- $x1 = $this->_right + $tickEnd;
- $y1 = $this->_point($mark[0]);
- }
- } elseif ($this->_type == IMAGE_GRAPH_AXIS_Y_SECONDARY) {
- if ($this->_transpose) {
- $x0 = $this->_point($mark[0]);
- $y0 = $this->_bottom + $tickStart;
- $x1 = $this->_point($mark[1]);
- $y1 = $this->_bottom + $tickEnd;
- }
- else {
- $x0 = $this->_left + $tickStart;
- $y0 = $this->_point($mark[1]);
- $x1 = $this->_left + $tickEnd;
- $y1 = $this->_point($mark[0]);
- }
- }
- $this->_getFillStyle();
- $this->_getLineStyle();
- $this->_canvas->rectangle(array('x0' => $x0, 'y0' => $y0, 'x1' => $x1, 'y1' => $y1));
- } else {
- if ($this->_type == IMAGE_GRAPH_AXIS_X) {
- if ($this->_transpose) {
- $x0 = $this->_right + 5;
- $y0 = $this->_point($mark);
- $x1 = $this->_right + 15;
- $y1 = $y0;
- }
- else {
- $x0 = $this->_point($mark);
- $y0 = $this->_top - 5;
- $x1 = $x0;
- $y1 = $this->_top - 15;
- }
- } elseif ($this->_type == IMAGE_GRAPH_AXIS_Y) {
- if ($this->_transpose) {
- $x0 = $this->_point($mark);
- $y0 = $this->_top - 5;
- $x1 = $x0;
- $y1 = $this->_top - 15;
- }
- else {
- $x0 = $this->_right + 5;
- $y0 = $this->_point($mark);
- $x1 = $this->_right + 15;
- $y1 = $y0;
- }
- } elseif ($this->_type == IMAGE_GRAPH_AXIS_Y_SECONDARY) {
- if ($this->_transpose) {
- $x0 = $this->_point($mark);
- $y0 = $this->_bottom + 5;
- $x1 = $x0;
- $y1 = $this->_bottom + 15;
- }
- else {
- $x0 = $this->_left - 5;
- $y0 = $this->_point($mark);
- $x1 = $this->_left - 15;
- $y1 = $y0;
- }
- }
- $this->_getFillStyle();
- $this->_getLineStyle();
- $this->_canvas->line(
- array(
- 'x0' => $x0,
- 'y0' => $y0,
- 'x1' => $x1,
- 'y1' => $y1,
- 'end0' => 'arrow2',
- 'size0' => 5
- )
- );
- }
- }
- $this->_canvas->endGroup();
-
- return true;
- }
-
-}
-
-?> \ No newline at end of file
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-21 20:16:52 +0000