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|
<?php
/**
* SourceForge: Breaking Down the Barriers to Open Source Development
* Copyright 1999-2001 (c) VA Linux Systems
* http://sourceforge.net
*
* @author Tim Perdue <tperdue@valnux.com>
* @version $Id: HTML_Graphs.php 3442 2004-10-08 21:39:22Z gsmet $
* @date $Date: 2004-10-08 23:39:22 +0200 (ven, 08 oct 2004) $
*
* Ryan T. Sammartino made several changes to make the output XHTML 1.0
* Transitional.
*/
/*
#######################################################################
#
# $Source$
# $Revision: 3442 $
# $State$
#
# Revision 1.5 1998/11/05 06:15:52 pdavis
# Added error_reporting setting per Jean-Pierre Arneodo's request.
# (Though redundant) Added html_graph_init() to initialize vars array.
#
# Revision 1.4 1998/07/08 05:24:25 pdavis
# Add double_vertical_graph from Jan Diepens.
# Added "max" function to find $largest in examples page.
# Added code to increase values of zero to one.
# Added double_vertical_graph example
# Combined all source into one zip.
#
# Revision 1.3 1998/06/17 23:37:19 pdavis
# Added mixed color codes and images to double graph.
#
# Revision 1.2 1998/06/17 21:20:20 pdavis
# Fixed Background problem, added mixed color codes and graphics.
#
# Revision 1.1 1998/06/17 15:52:41 pdavis
# Initial revision
#
#
#######################################################################
#
# *
# * Phil Davis
# *
# * Smyrna, Tennessee 37167 USA
# *
# * pdavis@pobox.com
# * http://www.pobox.com/~pdavis/
# *
#
# (C) Copyright 1998
# Phil Davis
# Printed in the United States of America
#
# This program is free software; you can redistribute it
# and/or modify it under the terms of the GNU General
# Public License version 2 as published by the Free
# Software Foundation.
#
# This program 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 General Public License
# for more details.
#
# Released under GNU Public License v2.0, available
# at www.fsf.org. The author hereby disclaims all
# warranties relating to this software, express or implied,
# including with no limitation any implied warranties of
# merchantability, quality performance, or fitness for a
# particular purpose. The author and their distributors
# shall not be liable for any special, incidental,
# consequential, indirect or similar damages due to loss
# of data, even if an agent of the author has been found
# to be the source of loss or damage. In no event shall the
# author's liability for any damages ever exceed the price
# paid for the license to use software, regardless of the
# form of the claim. The person using the software bears all
# risk as to the quality and performance of the software.
#
# Swim at your own risk!
#
# This software program, documentation, accompanying
# written and disk-based notes and specifications, and all
# referenced and related program files, screen display
# renditions, and text files, are the property of the
# author.
#
# The authors have done their best to insure that the
# material found in this document is both useful and
# accurate. However, please be aware that errors may exist,
# the author does not make any guarantee concerning the
# accuracy of the information found here or in the uses
# to which it may be put.
#
#######################################################################
#
# About:
#
# The following PHP3 code provides a nice class interface for
# html graphs. It provides a single, reasonably consistent
# interface for creating HTML based graphs. The idea behind
# this code is that the user of the class sets up four or five
# arrays and pass these to html_graph() which then takes
# care of all the messy HTML layout. I am reasonably happy
# with the outcome of this interface. The HTML that must be
# generated for HTML graphs *is* messy, and the interface is
# very clean and flexible. I think that once you generate
# one graph with it, you'll never look at creating HTML graphs
# the same. The arrays that must be set up consist of:
#
# * A names array containing column/row identifiers ($names)
# * One or two values arrays containg corresponding
# values to the column/row names ($values & $dvalues)
# * One or two bars array which also corresponds to the names
# array. The values in these arrays are URLS to graphics
# or color codes starting with a # which will be used to
# generate the graph bar. Color codes and graphics may
# be mixed in the same chart, although color codes can't
# be used on Vertical charts. ($bars & $dbars)
# * The heart of customization... a vals array. If this
# array isn't created then html_graphs will use all
# default values for the chart. Items that are customizable
# include font styles & colors, backgrounds, graphics,
# labels, cellspacing, cellpadding, borders, anotations
# and scaling factor. ($vals)
#
#######################################################################
#
# Known Bugs:
#
# * Currently the $vals["background"] tag element doesn't
# work in Netscape.
#
#######################################################################
#
# To Do:
#
# * Would like to make the $vals array to html_graph() completely
# optional. Currently it has to at least be an empty array.
#
#######################################################################
#
# Contributors:
#
# Jan Diepens - Eindhoven University of Technologie
# Jean-Pierre Arneodo
#
#######################################################################
#
# Contact:
#
# If you have questions, suggestions, bugs, bug fixes, or enhancements
# please send them to pdavis@pobox.com so that they may be wrapped into
# future versions of HTML_Graph.
#
#######################################################################
#
# Examples:
#
# See http://www.pobox.com/~pdavis/programs/
#
#######################################################################
*/
/*
#######################################################################
#
# Function: html_graph($names, $values, $bars, $vals[, $dvalues, $dbars])
#
# Purpose: Calls routines to initialize defaults, set up table
# print data, and close table.
#
# Arguments:
# $names - Array of element names.
# $values - Array of corresponding values for elements.
# $bars - Array of corresponding graphic image names
# or color codes (begining with a #) for elements.
# Color codes can't be used on vertical charts.
# $dvalues - Array of corresponding values for elements.
# This set is required only in the double graph.
# $dbars - Array of corresponding graphic image names
# or color codes (begining with a #) for elements.
# This set is required only in the double graph.
#
# $vals - array("vlabel"=>"",
# "hlabel"=>"",
# "type"=>"",
# "cellpadding"=>"",
# "cellspacing"=>"",
# "border"=>"",
# "width"=>"",
# "background"=>"",
# "vfcolor"=>"",
# "hfcolor"=>"",
# "vbgcolor"=>"",
# "hbgcolor"=>"",
# "vfstyle"=>"",
# "hfstyle"=>"",
# "noshowvals"=>"",
# "scale"=>"",
# "namebgcolor"=>"",
# "valuebgcolor"=>"",
# "namefcolor"=>"",
# "valuefcolor"=>"",
# "namefstyle"=>"",
# "valuefstyle"=>"",
# "doublefcolor"=>"")
#
# Where:
#
# vlabel - Vertical Label to apply
# default is NUL
# hlabel - Horizontal Label to apply
# default is NUL
# type - Type of graph
# 0 = horizontal
# 1 = vertical
# 2 = double horizontal
# 3 = double vertical
# default is 0
# cellpadding - Padding for the overall table
# default is 0
# cellspacing - Space for the overall table
# default is 0
# border - Border size for the overall table
# default is 0
# width - Width of the overall table
# default is NUL
# background - Background image for the overall table
# If this value exists then no BGCOLOR
# codes will be added to table elements.
# default is NUL
# vfcolor - Vertical label font color
# default is #000000
# hfcolor - Horizontal label font color
# default is #000000
# vbgcolor - Vertical label background color
# Not used if background is set
# default is #FFFFFF
# hbgcolor - Horizontal label background color
# Not used if background is set
# default is #FFFFFF
# vfstyle - Vertical label font style
# default is NUL
# hfstyle - Horizontal label font style
# default is NUL
# noshowvals - Don't show numeric value at end of graphic
# Boolean value, default is FALSE
# scale - Scale values by some number.
# default is 1.
# namebgcolor - Color code for element name cells
# Not used if background is set
# default is "#000000"
# valuebgcolor - Color code for value cells
# Not used if background is set
# default is "#000000"
# namefcolor - Color code for font of name element
# default is "#FFFFFF"
# valuefcolor - Color code for font of value element
# default is "#000000"
# namefstyle - Style code for font of name element
# default is NUL
# valuefstyle - Style code for font of value element
# default is NUL
# doublefcolor - Color code for font of second element value
# default is "#886666"
#
#######################################################################
*/
function html_graph($names, $values, $bars, $vals, $dvalues=0, $dbars=0)
{
// Set the error level on entry and exit so as not to interfear
// with anyone elses error checking.
$er = error_reporting(1);
// Set the values that the user didn't
$vals = hv_graph_defaults($vals);
start_graph($vals, $names);
if ($vals["type"] == 0)
{
horizontal_graph($names, $values, $bars, $vals);
}
elseif ($vals["type"] == 1)
{
vertical_graph($names, $values, $bars, $vals);
}
elseif ($vals["type"] == 2)
{
double_horizontal_graph($names, $values, $bars, $vals, $dvalues, $dbars);
}
elseif ($vals["type"] == 3)
{
double_vertical_graph($names, $values, $bars, $vals, $dvalues, $dbars);
}
end_graph();
// Set the error level back to where it was.
error_reporting($er);
}
/*
#######################################################################
#
# Function: html_graph_init()
#
# Purpose: Sets up the $vals array by initializing all values to
# null. Used to avoid warnings from error_reporting being
# set high. This routine only needs to be called if you
# are woried about using uninitialized variables.
#
# Returns: The initialized $vals array
#
#######################################################################
*/
function html_graph_init()
{
$vals = array("vlabel"=>"",
"hlabel"=>"",
"type"=>"",
"cellpadding"=>"",
"cellspacing"=>"",
"border"=>"",
"width"=>"",
"background"=>"",
"vfcolor"=>"",
"hfcolor"=>"",
"vbgcolor"=>"",
"hbgcolor"=>"",
"vfstyle"=>"",
"hfstyle"=>"",
"noshowvals"=>"",
"scale"=>"",
"namebgcolor"=>"",
"valuebgcolor"=>"",
"namefcolor"=>"",
"valuefcolor"=>"",
"namefstyle"=>"",
"valuefstyle"=>"",
"doublefcolor"=>"");
return($vals);
}
/*
#######################################################################
#
# Function: start_graph($vals, $names)
#
# Purpose: Prints out the table header and graph labels.
#
#######################################################################
*/
function start_graph($vals, $names)
{
print "<!-- Start Inner Graph Table -->\n\n<table";
print ' cellpadding="' . $vals["cellpadding"] . '"';
print ' cellspacing="' . $vals["cellspacing"] . '"';
print ' border="' . $vals["border"] . '"';
if ($vals["width"] != 0) { print ' width="' . $vals["width"] . '"'; }
if ($vals["background"]) { print ' background="' . $vals["background"] . '"'; }
print '>';
if (($vals["vlabel"]) || ($vals["hlabel"]))
{
if (($vals["type"] == 0) || ($vals["type"] == 2 ))// horizontal chart
{
$rowspan = SizeOf($names) + 1;
$colspan = 3;
}
elseif ($vals["type"] == 1 || ($vals["type"] == 3 )) // vertical chart
{
$rowspan = 3;
$colspan = SizeOf($names) + 1;
}
print '<tr><td align="center" valign="center" ';
// If a background was choosen don't print cell BGCOLOR
if (! $vals["background"]) { print 'style="background-color:' . $vals["hbgcolor"] . '"'; }
print ' colspan="' . $colspan . '">';
print '<span style="color:' . $vals["hfcolor"] . '; ' . $vals["hfstyle"] . '">';
print "<strong>" . $vals["hlabel"] . "</strong>";
print '</span></td></tr>';
print '<tr><td align="center" valign="center" ';
// If a background was choosen don't print cell BGCOLOR
if (! $vals["background"]) { print 'style="background-color:' . $vals["vbgcolor"] . '"'; }
print ' rowspan="' . $rowspan . '">';
print '<span style="color:' . $vals["vfcolor"] . '; ' . $vals["vfstyle"] . '">';
print "<strong>" . $vals["vlabel"] . "</strong>";
print '</span></td>';
}
}
/*
#######################################################################
#
# Function: end_graph()
#
# Purpose: Prints out the table footer.
#
#######################################################################
*/
function end_graph()
{
print "\n</table>\n\n<!-- end inner graph table -->\n\n";
}
/*
#######################################################################
#
# Function: hv_graph_defaults($vals)
#
# Purpose: Sets the default values for the $vals array
#
#######################################################################
*/
function hv_graph_defaults($vals)
{
if (! $vals["vfcolor"]) { $vals["vfcolor"]="#000000"; }
if (! $vals["hfcolor"]) { $vals["hfcolor"]="#000000"; }
if (! $vals["vbgcolor"]) { $vals["vbgcolor"]="#ffffff"; }
if (! $vals["hbgcolor"]) { $vals["hbgcolor"]="#ffffff"; }
if (! $vals["cellpadding"]) { $vals["cellpadding"]=0; }
if (! $vals["cellspacing"]) { $vals["cellspacing"]=0; }
if (! $vals["border"]) { $vals["border"]=0; }
if (! $vals["scale"]) { $vals["scale"]=1; }
if (! $vals["namebgcolor"]) { $vals["namebgcolor"]="#ffffff"; }
if (! $vals["valuebgcolor"]) { $vals["valuebgcolor"]="#ffffff"; }
if (! $vals["namefcolor"]) { $vals["namefcolor"]="#000000"; }
if (! $vals["valuefcolor"]) { $vals["valuefcolor"]="#000000"; }
if (! $vals["doublefcolor"]) { $vals["doublefcolor"]="#886666"; }
return ($vals);
}
/*
#######################################################################
#
# Function: horizontal_graph($names, $values, $bars, $vals)
#
# Purpose: Prints out the actual data for the horizontal chart.
#
#######################################################################
*/
function horizontal_graph($names, $values, $bars, $vals)
{
for( $i=0;$i<SizeOf($values);$i++ )
{
?>
<tr>
<td align="right" <?php
// If a background was choosen don't print cell BGCOLOR
if (! $vals["background"]) { print ' style="background-color:' . $vals["namebgcolor"] . '"'; }
?>>
<span style="font-size: -1;color:<?php
echo $vals["namefcolor"];
?>;<?php
echo $vals["namefstyle"];
echo "\">";
echo "\n".$names[$i]; ?>
</span>
</td>
<td align="left" <?php
// If a background was choosen don't print cell BGCOLOR
if (! $vals["background"]) { print ' style="background-color:' . $vals["valuebgcolor"] . '"'; }
echo ">";
// Decide if the value in bar is a color code or image.
if (ereg("^#", $bars[$i]))
{
?>
<table align="left" cellpadding="0" cellspacing="0" style="background-color:<?php echo $bars[$i] ?>" width="<?php echo $values[$i] * $vals["scale"] ?>">
<tr><td> </td></tr>
</table>
<?php
}
else
{
print '<img src="' . $bars[$i] . '"';
print ' height="10" width="' . $values[$i] * $vals["scale"] . '" alt= "" />';
}
if (! $vals["noshowvals"])
{
print ' <em><span style="font-size: -2;color:' . $vals["valuefcolor"] . ';'
. $vals["valuefstyle"] . '">(';
print $values[$i] . ")</span></em>";
}
?>
</td>
</tr>
<?php
} // endfor
} // end horizontal_graph
/*
#######################################################################
#
# Function: vertical_graph($names, $values, $bars, $vals)
#
# Purpose: Prints out the actual data for the vertical chart.
#
#######################################################################
*/
function vertical_graph($names, $values, $bars, $vals)
{
print "<tr>";
for( $i=0;$i<SizeOf($values);$i++ )
{
print '<td align="center" valign="bottom" ';
// If a background was choosen don't print cell BGCOLOR
if (! $vals["background"]) { print ' style="background-color:' . $vals["valuebgcolor"] . '"'; }
print ">";
if (! $vals["noshowvals"])
{
print '<em><span style="font-size: -2;color:' . $vals["valuefcolor"] . ';'
. $vals["valuefstyle"] . '">(';
print $values[$i] . ")</span></em><br />";
}
?>
<img src="<?php echo $bars[$i] ?>" width="5" height="<?php
// Values of zero are displayed wrong because a image height of zero
// gives a strange behavior in Netscape. For this reason the height
// is set at 1 pixel if the value is zero. - Jan Diepens
if ($values[$i] != 0)
{
echo $values[$i] * $vals["scale"];
}
else
{
echo "1";
}
?>" alt="" />
</td>
<?php
} // endfor
print "</tr><tr>";
for( $i=0;$i<SizeOf($values);$i++ )
{
?>
<td align="center" valign="top"
<?php
// If a background was choosen don't print cell BGCOLOR
if (! $vals["background"]) { print ' style="background-color:' . $vals["namebgcolor"] . '"'; }
?>
>
<span style="font-size: -1;color:<?php echo $vals["namefcolor"] ?>;<?php echo $vals["namefstyle"] ?>">
<?php echo $names[$i] ?>
</span>
</td>
<?php
} // endfor
} // end vertical_graph
/*
#######################################################################
#
# Function: double_horizontal_graph($names, $values, $bars,
# $vals, $dvalues, $dbars)
#
# Purpose: Prints out the actual data for the double horizontal chart.
#
#######################################################################
*/
function double_horizontal_graph($names, $values, $bars, $vals, $dvalues, $dbars)
{
for( $i=0;$i<SizeOf($values);$i++ )
{
?>
<tr>
<td align="right"
<?php
// If a background was choosen don't print cell BGCOLOR
if (! $vals["background"]) { print ' style="background-color:' . $vals["namebgcolor"] . '"'; }
?>
>
<span style="font-size: -1;color:<?php echo $vals["namefcolor"] ?>;<?php echo $vals["namefstyle"] ?>">
<?php echo $names[$i] ?>
</span>
</td>
<td align="left"
<?php
// If a background was choosen don't print cell BGCOLOR
if (! $vals["background"]) { print ' style="background-color:' . $vals["valuebgcolor"] . '"'; }
?>
>
<table align="left" cellpadding="0" cellspacing="0" width="<?php echo $dvalues[$i] * $vals["scale"] ?>">
<tr><td
<?php
// Set background to a color if it starts with # or
// an image otherwise.
if (ereg("^#", $dbars[$i])) { print 'style="background-color:' . $dbars[$i] . '">'; }
else { print 'background="' . $dbars[$i] . '">'; }
?>
<nowrap>
<?php
// Decide if the value in bar is a color code or image.
if (ereg("^#", $bars[$i]))
{
?>
<table align="left" cellpadding="0" cellspacing="0"
style="background-color:"<?php echo $bars[$i] ?>"
width="<?php echo $values[$i] * $vals["scale"] ?>">
<tr><td> </td></tr>
</table>
<?php
}
else
{
print '<img src="' . $bars[$i] . '"';
print ' height="10" width="' . $values[$i] * $vals["scale"] . '" alt="" />';
}
if (! $vals["noshowvals"])
{
print '<em><span style="font-size: -3:color:' . $vals["valuefcolor"] . ';'
. $vals["valuefstyle"] . '">(';
print $values[$i] . ")</span></em>";
}
?>
</nowrap>
</td></tr>
</table>
<?php
if (! $vals["noshowvals"])
{
print '<em><span style="font-size:-3;color:' . $vals["doublefcolor"] . ';'
. $vals["valuefstyle"] . '">(';
print $dvalues[$i] . ")</span></em>";
}
?>
</td>
</tr>
<?php
} // endfor
} // end double_horizontal_graph
/*
#######################################################################
#
# Function: double_vertical_graph($names, $values, $bars, $vals, $dvalues, $dbars)
#
# Purpose: Prints out the actual data for the double vertical chart.
#
# Author: Jan Diepens
#
#######################################################################
*/
function double_vertical_graph($names, $values, $bars, $vals, $dvalues, $dbars)
{
// print "<tr>";
for( $i=0;$i<SizeOf($values);$i++ )
{
print '<td align="center" valign="bottom" ';
// If a background was choosen don't print cell BGCOLOR
if (! $vals["background"]) { print ' style="background-color:' . $vals["valuebgcolor"] . '"'; }
print ">";
print '<table><tr><td align="center" valign="bottom" ';
// If a background was choosen don't print cell BGCOLOR
if (! $vals["background"]) { print ' style="background-color:' . $vals["valuebgcolor"] . '"'; }
print ">";
if (! $vals["noshowvals"])
{
print '<em><span style="font-size:-2;color:' . $vals["valuefcolor"] . ';'
. $vals["valuefstyle"] . '">(';
print $values[$i] . ")</span></em><br />";
}
?>
<img src="<?php echo $bars[$i] ?>" width="10" height="<?php if ($values[$i]!=0){
echo $values[$i] * $vals["scale"];
} else { echo "1";} ?>" alt="" />
</td><td align="center" valign="bottom"
<?php
// If a background was choosen don't print cell BGCOLOR
if (! $vals["background"]) { print ' style="background-color:' . $vals["valuebgcolor"] . '"'; }
print ">";
if (! $vals["noshowvals"])
{
print '<em><span style="font-size:-2;color:' . $vals["doublefcolor"] . ';'
. $vals["valuefstyle"] . '">(';
print $dvalues[$i] . ")</span></em><br />";
}
?>
<img src="<?php echo $dbars[$i] ?>" width="10" height="<?php if ($dvalues[$i]!=0){
echo $dvalues[$i] * $vals["scale"];
} else { echo "1";} ?>" alt="" />
</td></tr></table>
</td>
<?php
} // endfor
print "</tr><tr>";
for( $i=0;$i<SizeOf($values);$i++ )
{
?>
<td align="center" valign="top"
<?php
// If a background was choosen don't print cell BGCOLOR
if (! $vals["background"]) { print ' style="background-color:' . $vals["namebgcolor"] . '"'; }
?>
>
<span style="font-size:-1;color:<?php echo $vals["namefcolor"] ?>;<?php echo $vals["namefstyle"] ?>">
<?php echo $names[$i] ?>
</span>
</td>
<?php
} // endfor
} // end double_vertical_graph
/*
#######################################################################
#
# Function: horizontal_absolute_multi_graph($names, $multi_rows,
# $colors, $vals,
# $additive)
# $multi_rows - array of arrays of values (may be seen as
# array of columns - column for first color, for second, etc.)
# $colors - array of color names or codes
# $additive - treat data as absolute values (will be
# differentiated for drawing, and hence should be non-decreasing
# sequence) or additive (just stick one on another).
#
# Purpose: Prints out the actual data for the horizontal chart of
# bars with multiple sections
#
#######################################################################
*/
function horizontal_multisection_graph($names, $multi_rows, $colors, $vals, $additive=false)
{
$subbars_num=SizeOf($multi_rows);
for( $i=0;$i<SizeOf($names);$i++ )
{
?>
<tr>
<td align="right" <?php
// If a background was choosen don't print cell BGCOLOR
if (! $vals["background"]) { print ' style="background-color:' . $vals["namebgcolor"] . '"'; }
?>>
<span style="font-size:-1;color:<?php echo $vals["namefcolor"]; ?>;<?php echo $vals["namefstyle"]; ?>">
<?php
echo "\n".$names[$i]; ?>
</span>
</td>
<td align="left" <?php
// If a background was choosen don't print cell BGCOLOR
if (! $vals["background"]) { print ' style="background-color:' . $vals["valuebgcolor"] . '"'; }
echo ">";
echo '<table align="left" border="0" cellpadding="0" cellspacing="0"><tr>'."\n";
$prev_val=0;
$shown=0;
for( $j=0;$j<$subbars_num;$j++ ) {
$width=$multi_rows[$j][$i];
if (!$additive) $width-=$prev_val;
if ($width<=0 && ($j!=$subbars_num-1 || $shown)) continue;
// make sure that we show at least stump, but only one
$shown=1;
$prev_val=$multi_rows[$j][$i];
$pix_width=$width * $vals["scale"];
echo "<td style=\"background-color:".$colors[$j]."\" width=\"".$pix_width."\"> </td>";
}
echo '</tr></table>';
if (! $vals["noshowvals"])
{
print ' <em><span style="font-size:-2;color:' . $vals["valuefcolor"] . ';'
. $vals["valuefstyle"] . '"> (';
for( $j=0;$j<SizeOf($multi_rows);$j++ ) {
if ($j) print "/";
print $multi_rows[$j][$i];
}
print ")</span></em>";
}
?>
</td>
</tr>
<?php
} // endfor
} // end horizontal_graph
function graph_calculate_scale($multi_rows,$width) {
$max_value=0;
$rows_num=count($multi_rows);
for ($row_i = 0; $row_i < $rows_num; $row_i++) {
$row=$multi_rows[$row_i];
$counter=count($row);
for ($i = 0; $i < $counter; $i++) {
if ($row[$i] > $max_value) {
$max_value=$row[$i];
}
}
}
if ($max_value < 1) {
$max_value=1;
}
$scale=($width/$max_value);
return $scale;
}
?>
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