385 lines
12 KiB
PHP
385 lines
12 KiB
PHP
|
<?php
|
||
|
|
||
|
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
|
||
|
|
||
|
/**
|
||
|
* Image_Graph - Main class for the graph creation.
|
||
|
*
|
||
|
* 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 Legend
|
||
|
* @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: Legend.php,v 1.15 2005/09/30 18:59:18 nosey Exp $
|
||
|
* @link http://pear.php.net/package/Image_Graph
|
||
|
*/
|
||
|
|
||
|
/**
|
||
|
* Include file Image/Graph/Layout.php
|
||
|
*/
|
||
|
require_once 'Image/Graph/Layout.php';
|
||
|
|
||
|
/**
|
||
|
* Displays a legend for a plotarea.
|
||
|
*
|
||
|
* A legend can be displayed in two ways:
|
||
|
*
|
||
|
* 1 As an overlayed box within the plotarea
|
||
|
*
|
||
|
* 2 Layout'ed on the canvas smewhere next to the plotarea.
|
||
|
*
|
||
|
* @category Images
|
||
|
* @package Image_Graph
|
||
|
* @subpackage Legend
|
||
|
* @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_Legend extends Image_Graph_Layout
|
||
|
{
|
||
|
|
||
|
/**
|
||
|
* Alignment of the text
|
||
|
* @var int
|
||
|
* @access private
|
||
|
*/
|
||
|
var $_alignment = false;
|
||
|
|
||
|
/**
|
||
|
* The plotarea(s) to show the legend for
|
||
|
* @var array
|
||
|
* @access private
|
||
|
*/
|
||
|
var $_plotareas = array();
|
||
|
|
||
|
/**
|
||
|
* Should markers be shown or not on this legend
|
||
|
* @var bool
|
||
|
* @access private
|
||
|
*/
|
||
|
var $_showMarker = false;
|
||
|
|
||
|
/**
|
||
|
* Image_Graph_Legend [Constructor]
|
||
|
*/
|
||
|
function Image_Graph_Legend()
|
||
|
{
|
||
|
parent::Image_Graph_Layout();
|
||
|
$this->_padding = 5;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* The number of actual plots in the plot area
|
||
|
*
|
||
|
* @return int The number of plotes
|
||
|
* @access private
|
||
|
*/
|
||
|
function _plotCount()
|
||
|
{
|
||
|
$count = 0;
|
||
|
$keys = array_keys($this->_plotareas);
|
||
|
foreach($keys as $key) {
|
||
|
$plotarea =& $this->_plotareas[$key];
|
||
|
if (is_a($plotarea, 'Image_Graph_Plotarea')) {
|
||
|
$keys2 = array_keys($plotarea->_elements);
|
||
|
foreach ($keys2 as $key) {
|
||
|
$element =& $plotarea->_elements[$key];
|
||
|
if (is_a($element, 'Image_Graph_Plot')) {
|
||
|
$count ++;
|
||
|
}
|
||
|
}
|
||
|
unset($keys2);
|
||
|
}
|
||
|
}
|
||
|
unset($keys);
|
||
|
return $count;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Get a default parameter array for legendSamples
|
||
|
* @param bool $simulate Whether the array should be used for simulation or
|
||
|
* not
|
||
|
* @return array Default parameter array
|
||
|
* @access private
|
||
|
*/
|
||
|
function _parameterArray($simulate = false)
|
||
|
{
|
||
|
$param['left'] = $this->_left + $this->_padding;
|
||
|
$param['top'] = $this->_top + $this->_padding;
|
||
|
$param['right'] = $this->_right - $this->_padding;
|
||
|
$param['bottom'] = $this->_bottom - $this->_padding;
|
||
|
$param['align'] = $this->_alignment;
|
||
|
$param['x'] = $this->_left + $this->_padding;
|
||
|
$param['y'] = $this->_top + $this->_padding;
|
||
|
$param['width'] = 16;
|
||
|
$param['height'] = 16;
|
||
|
$param['show_marker'] = $this->_showMarker;
|
||
|
$param['maxwidth'] = 0;
|
||
|
$param['font'] = $this->_getFont();
|
||
|
if ($simulate) {
|
||
|
$param['simulate'] = true;
|
||
|
}
|
||
|
|
||
|
return $param;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* The height of the element on the canvas
|
||
|
*
|
||
|
* @return int Number of pixels representing the height of the element
|
||
|
* @access private
|
||
|
*/
|
||
|
function _height()
|
||
|
{
|
||
|
$parent = (is_object($this->_parent) ? get_class($this->_parent) : $this->_parent);
|
||
|
|
||
|
if (strtolower($parent) == 'image_graph_plotarea') {
|
||
|
$param = $this->_parameterArray(true);
|
||
|
$param['align'] = IMAGE_GRAPH_ALIGN_VERTICAL;
|
||
|
$param0 = $param;
|
||
|
$keys = array_keys($this->_plotareas);
|
||
|
foreach($keys as $key) {
|
||
|
$plotarea =& $this->_plotareas[$key];
|
||
|
$keys2 = array_keys($plotarea->_elements);
|
||
|
foreach($keys2 as $key) {
|
||
|
$element =& $plotarea->_elements[$key];
|
||
|
if (is_a($element, 'Image_Graph_Plot')) {
|
||
|
$element->_legendSample($param);
|
||
|
}
|
||
|
}
|
||
|
unset($keys2);
|
||
|
}
|
||
|
unset($keys);
|
||
|
return abs($param['y'] - $param0['y']) + 2*$this->_padding;
|
||
|
} else {
|
||
|
return parent::height();
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* The width of the element on the canvas
|
||
|
*
|
||
|
* @return int Number of pixels representing the width of the element
|
||
|
* @access private
|
||
|
*/
|
||
|
function _width()
|
||
|
{
|
||
|
$parent = (is_object($this->_parent) ? get_class($this->_parent) : $this->_parent);
|
||
|
|
||
|
if (strtolower($parent) == 'image_graph_plotarea') {
|
||
|
$param = $this->_parameterArray(true);
|
||
|
$param['align'] = IMAGE_GRAPH_ALIGN_VERTICAL;
|
||
|
$keys = array_keys($this->_plotareas);
|
||
|
foreach($keys as $key) {
|
||
|
$plotarea =& $this->_plotareas[$key];
|
||
|
$keys2 = array_keys($plotarea->_elements);
|
||
|
foreach($keys2 as $key) {
|
||
|
$element =& $plotarea->_elements[$key];
|
||
|
if (is_a($element, 'Image_Graph_Plot')) {
|
||
|
$element->_legendSample($param);
|
||
|
}
|
||
|
}
|
||
|
unset($keys2);
|
||
|
}
|
||
|
unset($keys);
|
||
|
return $param['maxwidth'];
|
||
|
} else {
|
||
|
return parent::width();
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Set the alignment of the legend
|
||
|
*
|
||
|
* @param int $alignment The alignment
|
||
|
*/
|
||
|
function setAlignment($alignment)
|
||
|
{
|
||
|
$this->_alignment = $alignment;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Update coordinates
|
||
|
*
|
||
|
* @access private
|
||
|
*/
|
||
|
function _updateCoords()
|
||
|
{
|
||
|
parent::_updateCoords();
|
||
|
|
||
|
$parent = (is_object($this->_parent) ? get_class($this->_parent) : $this->_parent);
|
||
|
|
||
|
if (strtolower($parent) == 'image_graph_plotarea') {
|
||
|
$w = $this->_width();
|
||
|
$h = $this->_height();
|
||
|
|
||
|
if ($this->_alignment === false) {
|
||
|
$this->_alignment = IMAGE_GRAPH_ALIGN_TOP + IMAGE_GRAPH_ALIGN_RIGHT;
|
||
|
}
|
||
|
|
||
|
if (($this->_alignment & IMAGE_GRAPH_ALIGN_BOTTOM) != 0) {
|
||
|
$y = $this->_parent->_fillBottom() - $h - $this->_padding;
|
||
|
} else {
|
||
|
$y = $this->_parent->_fillTop() + $this->_padding;
|
||
|
}
|
||
|
|
||
|
if (($this->_alignment & IMAGE_GRAPH_ALIGN_LEFT) != 0) {
|
||
|
$x = $this->_parent->_fillLeft() + $this->_padding;
|
||
|
} else {
|
||
|
$x = $this->_parent->_fillRight() - $w - $this->_padding;
|
||
|
}
|
||
|
|
||
|
$this->_setCoords($x, $y, $x + $w, $y + $h);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Sets Plotarea
|
||
|
*
|
||
|
* @param Image_Graph_Plotarea $plotarea The plotarea
|
||
|
*/
|
||
|
function setPlotarea(& $plotarea)
|
||
|
{
|
||
|
if (is_a($plotarea, 'Image_Graph_Plotarea')) {
|
||
|
$this->_plotareas[] =& $plotarea;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Sets the parent. The parent chain should ultimately be a GraPHP object
|
||
|
*
|
||
|
* @see Image_Graph
|
||
|
* @param Image_Graph_Common $parent The parent
|
||
|
* @access private
|
||
|
*/
|
||
|
function _setParent(& $parent)
|
||
|
{
|
||
|
parent::_setParent($parent);
|
||
|
if (count($this->_plotareas) == 0) {
|
||
|
$this->setPlotarea($parent);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Set if this legends should show markers
|
||
|
*
|
||
|
* @param bool $showMarker True if markers are to be shown, false is not
|
||
|
*/
|
||
|
function setShowMarker($showMarker)
|
||
|
{
|
||
|
$this->_showMarker = $showMarker;
|
||
|
}
|
||
|
|
||
|
|
||
|
/**
|
||
|
* Output the plot
|
||
|
*
|
||
|
* @return bool Was the output 'good' (true) or 'bad' (false).
|
||
|
* @access private
|
||
|
*/
|
||
|
function _done()
|
||
|
{
|
||
|
|
||
|
if (Image_Graph_Element::_done() === false) {
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
$this->_canvas->startGroup(get_class($this));
|
||
|
|
||
|
$param = $this->_parameterArray();
|
||
|
|
||
|
$parent = (is_object($this->_parent) ?
|
||
|
get_class($this->_parent) :
|
||
|
$this->_parent
|
||
|
);
|
||
|
|
||
|
if (strtolower($parent) == 'image_graph_plotarea') {
|
||
|
$this->_getFillStyle();
|
||
|
$this->_getLineStyle();
|
||
|
$this->_canvas->rectangle(
|
||
|
array(
|
||
|
'x0' => $this->_left,
|
||
|
'y0' => $this->_top,
|
||
|
'x1' => $this->_right,
|
||
|
'y1' => $this->_bottom
|
||
|
)
|
||
|
);
|
||
|
|
||
|
$param = $this->_parameterArray();
|
||
|
|
||
|
$keys = array_keys($this->_plotareas);
|
||
|
foreach($keys as $key) {
|
||
|
$plotarea =& $this->_plotareas[$key];
|
||
|
$keys2 = array_keys($plotarea->_elements);
|
||
|
foreach($keys2 as $key) {
|
||
|
$element =& $plotarea->_elements[$key];
|
||
|
if (is_a($element, 'Image_Graph_Plot')) {
|
||
|
$element->_legendSample($param);
|
||
|
}
|
||
|
}
|
||
|
unset($keys2);
|
||
|
}
|
||
|
unset($keys);
|
||
|
} else {
|
||
|
$param0 = $param;
|
||
|
$param0['simulate'] = true;
|
||
|
$keys = array_keys($this->_plotareas);
|
||
|
foreach($keys as $key) {
|
||
|
$plotarea =& $this->_plotareas[$key];
|
||
|
$keys2 = array_keys($plotarea->_elements);
|
||
|
foreach($keys2 as $key) {
|
||
|
$element =& $plotarea->_elements[$key];
|
||
|
if (is_a($element, 'Image_Graph_Plot')) {
|
||
|
$element->_legendSample($param0);
|
||
|
}
|
||
|
}
|
||
|
unset($keys2);
|
||
|
}
|
||
|
unset($keys);
|
||
|
if (($this->_alignment & IMAGE_GRAPH_ALIGN_VERTICAL) != 0) {
|
||
|
if ($param0['x'] == $param['x']) {
|
||
|
$param['y'] = $param['y'] + ($this->_height() - ($param0['y'] - $param['y']))/2;
|
||
|
}
|
||
|
} else {
|
||
|
if ($param0['y'] == $param['y']) {
|
||
|
$param['x'] = $param['x'] + ($this->_width() - ($param0['x'] - $param['x']))/2;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
$keys = array_keys($this->_plotareas);
|
||
|
foreach($keys as $key) {
|
||
|
$plotarea =& $this->_plotareas[$key];
|
||
|
$keys2 = array_keys($plotarea->_elements);
|
||
|
foreach($keys2 as $key) {
|
||
|
$element =& $plotarea->_elements[$key];
|
||
|
if (is_a($element, 'Image_Graph_Plot')) {
|
||
|
$element->_legendSample($param);
|
||
|
}
|
||
|
}
|
||
|
unset($keys2);
|
||
|
}
|
||
|
unset($keys);
|
||
|
}
|
||
|
|
||
|
$this->_canvas->endGroup();
|
||
|
|
||
|
return true;
|
||
|
}
|
||
|
}
|
||
|
?>
|