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Show User Quota
This class allows you to supply the values of the user quota (as you might gather from the file system, imap, or your own database driven system) and output them as a nice graph, or as text. The colours of the graph are definable, and you can also change whether you have it as a flat pie chart or a 3D pie chart. This was designed to mimick the disk space graph used in Windows.
class.userquota.php
The main class file. You have to pass the max/used quota figures to it, but that's because there could be a number of different types of quota you want to get; imap, file system, or something of your own device.
<?php
//
// class.userquota.php
// version 1.0.1, 22nd August, 2003
//
// Description
//
// This is a class to allow a graphical or text display of a user's quota.
// The quota and how much has been used is passed to the class and the output
// is display as either a graphic or as text. The graphic is a pie chart and
// can be displayed in a few different ways.
//
// Author
//
// Andrew Collington, 2003
// php@amnuts.com, http://php.amnuts.com/
//
// Feedback
//
// http://php.amnuts.com/forums/index.php
// There is message board at the above URL where you can post
// feedback, bug reports, feature requests, etc., for this and
// any of the other scripts located at php.amnuts.com.
//
// Example of use
//
// require("class.userquota.php");
// $uq = new userQuota(24000000, 5087643);
// $uq->setOutputImage();
// $uq->setImageProperties(130, TRUE, TRUE, FALSE, 'DDDDDD', 'ED1C24', 'FFFFFF', '555555');
// $uq->displayQuota();
//
class userQuota
{
// quota variables
var $qType; // output type
var $qQuota; // quota value
var $qUsed; // used value
var $qUser; // input user name
// image variables
var $gWidth; // width of pie chart
var $gHeight; // height of pie chart (determined by width)
var $g3DHeight; // do we want a 3D look or not
var $gLegend; // display the legend or not
var $gQuotaColour; // colour of quota
var $gUsedColour; // colour of used space
var $gBackColour; // colour of the background
var $gTextColour; // colour of the legend text
var $gCentreUsed; // centre the 'used' wedge to bottom of pie
//
// class functions - user called
//
//
// $quota is the total quota the user has supplied as just a number
// $used is how much the user has taken up supplied as just a number
// $username, if supplied, will be displayed on the image legend or in the text output
//
function userQuota($quota, $used, $username = '')
{
$this->qUser = $username;
$this->setOutputImage();
$this->setImageProperties();
$this->qQuota = $quota;
$this->qUsed = $used;
$this->oPercent = ($this->qUsed / (!$this->qQuota ? 1 : $this->qQuota)) * 100;
$this->qUser = $username;
if ($this->oPercent > 100)
{
$this->oPercent = 100;
}
}
//
// set the class to output only in text mode
//
function setOutputText()
{
$this->qType = 0;
}
//
// set the class to output in graphical mode
//
function setOutputImage()
{
$this->qType = 1;
}
//
// determine the image properties for the class
//
// $width is the width of the graph in pixels, supplied as an int
// $threeD is a boolean value. TRUE shows graph in faux 3D and FALSE shows graph flat
// $legend is a boolean value. TRUE shows legend and FALSE does not
// $centre is a boolean value. TRUE shows used wedge centered in chart and FALSE defaults to the right
//
// all colours are supplied as HTML hex values
//
// $qc is the quota colour
// $uc is the used colour
// $bc is the background colour
// $tc is the legend text colour
//
function setImageProperties($width = 150, $threeD = TRUE, $legend = TRUE, $centre = TRUE, $qc = 'DDDDDD', $uc = 'ED1C24', $bc = 'FFFFFF', $tc = '000000')
{
$this->gWidth = (!$width ? 150 : $width);
if ($threeD)
{
$this->gHeight = $width/2;
$this->g3DHeight = $width/10;
}
else
{
$this->gHeight = $width;
$this->g3DHeight = 0;
}
$this->gLegend = ($legend == TRUE ? TRUE : FALSE);
$this->gCentreUsed = ($centre == TRUE ? TRUE : FALSE);
$this->gQuotaColour = $this->_htmlHexToBinArray($qc);
$this->gUsedColour = $this->_htmlHexToBinArray($uc);
$this->gBackColour = $this->_htmlHexToBinArray($bc);
$this->gTextColour = $this->_htmlHexToBinArray($tc);
}
//
// show the quota output
//
function displayQuota()
{
($this->qType == 0) ? $this->_displayText() : $this->_displayImage();
}
//
// internal functions
//
//
// convert HTML hex value into integer array
//
function _htmlHexToBinArray($hex)
{
for ($i=0; $i<3; $i++)
{
$foo = substr($hex, 2*$i, 2);
$rgb[$i] = 16 * hexdec(substr($foo, 0, 1)) + hexdec(substr($foo, 1, 1));
}
return $rgb;
}
//
// output the quota text
//
function _displayText()
{
if ($this->qUser) echo 'The quota for ', $this->qUser;
else echo 'Your quota';
echo ' is ', $this->_formatSize($this->qQuota), ' and ',
($this->qUser ? 'they' : 'you'), ' have used ',
$this->_formatSize($this->qUsed), ' (',
number_format($this->oPercent, 2), '%) of it.';
}
//
// output the quota graph
//
function _displayImage()
{
// the graph variables
$sStart = $this->g3DHeight * 2;
$wStart = $this->gWidth * 2;
$hStart = $this->gHeight * 2;
if ($this->qUsed >= $this->qQuota) $usedPercent = 359;
else $usedPercent = $this->oPercent * 3.6;
// work out where the 'used' wedge will be located
if ($this->gCentreUsed)
{
$sWedge = (int)(90 - ($usedPercent / 2));
if ($sWedge < 0) $sWedge += 360;
$mWedge = (int)(90 + ($usedPercent / 2));
$mWedge = ($mWedge == 90 ? 91 : $mWedge);
$eWedge = (int)$sWedge;
}
else
{
$sWedge = 0;
$mWedge = (int)($usedPercent ? $usedPercent : 1);
$eWedge = 360;
}
// setup image and main colours
$im = @ImageCreateTrueColor($wStart, $hStart + $sStart);
if ($im)
{
$cBg = ImageColorAllocate($im, $this->gBackColour[0], $this->gBackColour[1], $this->gBackColour[2]);
$cUsed = ImageColorAllocate($im, $this->gUsedColour[0], $this->gUsedColour[1], $this->gUsedColour[2]);
$cQuota = ImageColorAllocate($im, $this->gQuotaColour[0], $this->gQuotaColour[1], $this->gQuotaColour[2]);
ImageFill($im, 0, 0, $cBg);
// work out 3D look if needs be
if ($this->g3DHeight)
{
// process colours
$qDarkArray = $this->gQuotaColour;
for ($i=0; $i<3; $i++)
{
($qDarkArray[$i] > 99) ? $qDarkArray[$i] -= 100 : $qDarkArray[$i] = 0;
}
$uDarkArray = $this->gUsedColour;
for ($i=0; $i<3; $i++)
{
($uDarkArray[$i] > 99) ? $uDarkArray[$i] -= 100 : $uDarkArray[$i] = 0;
}
$cQuotaDark = ImageColorAllocate($im, $qDarkArray[0], $qDarkArray[1], $qDarkArray[2]);
$cUsedDark = ImageColorAllocate($im, $uDarkArray[0], $uDarkArray[1], $uDarkArray[2]);
// add 3D look
$shadow_start = ($hStart/2) + $sStart;
$shadow_end = $hStart/2;
for ($i=$shadow_start; $i>$shadow_end; $i--)
{
ImageFilledArc($im, ($wStart/2), $i, $wStart, $hStart, $sWedge, $mWedge, $cUsedDark, IMG_ARC_PIE);
ImageFilledArc($im, ($wStart/2), $i, $wStart, $hStart, $mWedge, $eWedge, $cQuotaDark, IMG_ARC_PIE);
}
}
// now do the top of the graph
ImageFilledArc($im, ($wStart/2), ($hStart/2), $wStart, $hStart, $sWedge, $mWedge, $cUsed, IMG_ARC_PIE);
ImageFilledArc($im, ($wStart/2), ($hStart/2), $wStart, $hStart, $mWedge, $eWedge, $cQuota, IMG_ARC_PIE);
// now create a legend image if needs be
if ($this->gLegend)
{
// the legend variables
$lHeight = $lWidth = 0;
$spacer = 10;
// build quota strings
$qText[0] = 'Quota: ' . $this->_formatSize($this->qQuota);
if ($this->qUser) $qText[1] = ' (' . $this->qUser . ')';
else $qText[1] = '';
$uText[0] = 'Used : ' . $this->_formatSize($this->qUsed);
$uText[1] = ' (' . number_format($this->oPercent,2) . '%)';
// space + line + spacer + line
$lHeight = (ImageFontHeight(2) * ($qText[1] == '' ? 3 : 4)) + $spacer;
// get biggest string length and add spacer to it - legend block is size of font height (square)
$qMax = (strlen($qText[0]) > strlen($qText[1])) ? strlen($qText[0]) : strlen($qText[1]);
$uMax = (strlen($uText[0]) > strlen($uText[1])) ? strlen($uText[0]) : strlen($uText[1]);
$tMax = ($qMax > $uMax ? $qMax : $uMax);
$lWidth = ($tMax * ImageFontWidth(2)) + $spacer + ImageFontHeight(2);
// now create the image
$lim = ImageCreateTrueColor($lWidth, $lHeight);
ImageFill($lim, 0, 0, $cBg);
$cText = ImageColorAllocate($lim, $this->gTextColour[0], $this->gTextColour[1], $this->gTextColour[2]);
$lx = 0;
$ly = 0;
// write out the 'quota' legend
ImageFilledRectangle($lim, $lx, $ly, ($lx + ImageFontHeight(2)), ($ly + ImageFontHeight(2)), $cQuota);
ImageString($lim, 2, ($lx + ImageFontHeight(2) + $spacer), $ly, $qText[0], $cText);
if ($qText[1] != '')
{
$ly += ImageFontHeight(2);
ImageString($lim, 2, ($lx + ImageFontHeight(2) + $spacer), $ly, $qText[1], $cText);
}
$ly += ($spacer + ImageFontHeight(2));
// write out the 'used' legend
ImageFilledRectangle($lim, $lx, $ly, ($lx + ImageFontHeight(2)), ($ly + ImageFontHeight(2)), $cUsed);
ImageString($lim, 2, ($lx + ImageFontHeight(2) + $spacer), $ly, $uText[0], $cText);
$ly += ImageFontHeight(2);
ImageString($lim, 2, ($lx + ImageFontHeight(2) + $spacer), $ly, $uText[1], $cText);
// now merge the two images into the final one
// anti-aliasing look
$gsx = ImageSX($im);
$gsy = ImageSY($im);
$lsx = ImageSX($lim);
$lsy = ImageSY($lim);
$gnx = ($gsx >> 1);
$gny = ($gsy >> 1);
$fx = ($gnx > $lsx) ? $gnx : $lsx;
$fy = $gny + $lsy + ($spacer * 2);
$final = ImageCreateTrueColor($fx, $fy);
ImageFill($final, 0, 0, $cBg);
ImageCopyResampled($final, $im, (($fx/2)-($gnx/2)), 0, 0, 0, $gnx, $gny, $gsx, $gsy);
ImageCopyResampled($final, $lim, (($fx/2)-($lsx/2)), $gny + ($spacer * 2), 0, 0, $lsx, $lsy, $lsx, $lsy);
ImageDestroy($lim);
}
else
{
// we do not have a legend, so just reample graph
$sx = ImageSX($im);
$sy = ImageSY($im);
$nx = ($sx>>1);
$ny = ($sy>>1);
$final = ImageCreateTrueColor($nx, $ny);
ImageCopyResampled($final, $im, 0, 0, 0, 0, $nx, $ny, $sx, $sy);
}
// flush image
header("Content-type: image/jpeg");
ImageJPEG($final, NULL, 100);
ImageDestroy($im);
ImageDestroy($final);
}
}
//
// make the size of the quota values more human readable
//
function _formatSize($size = 0)
{
if ($size >= 1073741824) $size = round($size/1073741824*100)/100 . " Gb";
else if ($size >= 1048576) $size = round($size/1048576*100)/100 . " Mb";
else if ($size >= 1024) $size = round($size/1024*100)/100 . " kb";
else $size = $size . " bytes";
return $size;
}
}
?>
10.05kb in size
last modified May 6, 2006 at 9:55pm
11436 views, 9501 downloads
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