function isImgCached($file)
{
if (!USE_CACHE) {
return false;
}
if ($file == 'auto') {
$file = GenImgName();
// imported from jpgraph.php
}
$filename = catfile(CACHE_DIR, $file);
if (file_exists($filename)) {
if (CACHE_TIMEOUT == 0) {
return true;
}
$diff = time() - filemtime($filename);
return $diff < CACHE_TIMEOUT * 60;
}
return false;
}
function PutAndStream(&$aImage, $aCacheFileName, $aInline, $aStrokeFileName)
{
// Some debugging code to brand the image with numbe of colors
// used
global $gJpgBrandTiming;
if ($gJpgBrandTiming) {
global $tim;
$t = $tim->Pop() / 1000.0;
$c = $aImage->SetColor("black");
$t = sprintf(BRAND_TIME_FORMAT, round($t, 3));
imagestring($this->img->img, 2, 5, $this->img->height - 20, $t, $c);
}
// Check if we should stroke the image to an arbitrary file
if (_FORCE_IMGTOFILE) {
$aStrokeFileName = _FORCE_IMGDIR . GenImgName();
}
if ($aStrokeFileName != "") {
if ($aStrokeFileName == "auto") {
$aStrokeFileName = GenImgName();
}
if (file_exists($aStrokeFileName)) {
// Delete the old file
if (!@unlink($aStrokeFileName)) {
JpGraphError::Raise(" Can't delete cached image {$aStrokeFileName}. Permission problem?");
}
}
$aImage->Stream($aStrokeFileName);
return;
}
if ($aCacheFileName != "" && USE_CACHE) {
$aCacheFileName = $this->cache_dir . $aCacheFileName;
if (file_exists($aCacheFileName)) {
if (!$aInline) {
// If we are generating image off-line (just writing to the cache)
// and the file exists and is still valid (no timeout)
// then do nothing, just return.
$diff = time() - filemtime($aCacheFileName);
if ($diff < 0) {
JpGraphError::Raise(" Cached imagefile ({$aCacheFileName}) has file date in the future!!");
}
if ($this->timeout > 0 && $diff <= $this->timeout * 60) {
return;
}
}
if (!@unlink($aCacheFileName)) {
JpGraphError::Raise(" Can't delete cached image {$aStrokeFileName}. Permission problem?");
}
$aImage->Stream($aCacheFileName);
} else {
$this->MakeDirs(dirname($aCacheFileName));
if (!is_writeable(dirname($aCacheFileName))) {
JpGraphError::Raise('PHP has not enough permissions to write to the cache file ' . $aCacheFileName . '. Please make sure that the user running PHP has write permission for this file if you wan to use the cache system with JpGraph.');
}
$aImage->Stream($aCacheFileName);
}
$res = true;
// Set group to specified
if (CACHE_FILE_GROUP != "") {
$res = @chgrp($aCacheFileName, CACHE_FILE_GROUP);
}
if (CACHE_FILE_MOD != "") {
$res = @chmod($aCacheFileName, CACHE_FILE_MOD);
}
if (!$res) {
JpGraphError::Raise(" Can't set permission for cached image {$aStrokeFileName}. Permission problem?");
}
$aImage->Destroy();
if ($aInline) {
if ($fh = @fopen($aCacheFileName, "rb")) {
$this->img->Headers();
fpassthru($fh);
return;
} else {
JpGraphError::Raise(" Cant open file from cache [{$aFile}]");
}
}
} elseif ($aInline) {
$this->img->Headers();
$aImage->Stream();
return;
}
}
function __construct($aWidth = 300, $aHeight = 200, $aCachedName = '', $aTimeout = 0, $aInline = true)
{
if (!is_numeric($aWidth) || !is_numeric($aHeight)) {
JpGraphError::RaiseL(25008);
//('Image width/height argument in Graph::Graph() must be numeric');
}
// Initialize frame and margin
$this->InitializeFrameAndMargin();
// Automatically generate the image file name based on the name of the script that
// generates the graph
if ($aCachedName == 'auto') {
$aCachedName = GenImgName();
}
// Should the image be streamed back to the browser or only to the cache?
$this->inline = $aInline;
$this->img = new RotImage($aWidth, $aHeight);
$this->cache = new ImgStreamCache();
// Window doesn't like '?' in the file name so replace it with an '_'
$aCachedName = str_replace("?", "_", $aCachedName);
$this->SetupCache($aCachedName, $aTimeout);
$this->title = new Text();
$this->title->ParagraphAlign('center');
$this->title->SetFont(FF_DEFAULT, FS_NORMAL);
//FF_FONT2, FS_BOLD
$this->title->SetMargin(5);
$this->title->SetAlign('center');
$this->subtitle = new Text();
$this->subtitle->ParagraphAlign('center');
$this->subtitle->SetMargin(3);
$this->subtitle->SetAlign('center');
$this->subsubtitle = new Text();
$this->subsubtitle->ParagraphAlign('center');
$this->subsubtitle->SetMargin(3);
$this->subsubtitle->SetAlign('center');
$this->legend = new Legend();
$this->footer = new Footer();
// If the cached version exist just read it directly from the
// cache, stream it back to browser and exit
if ($aCachedName != '' && READ_CACHE && $aInline) {
if ($this->cache->GetAndStream($this->img, $aCachedName)) {
exit;
}
}
$this->SetTickDensity();
// Normal density
$this->tabtitle = new GraphTabTitle();
if (!$this->isRunningClear) {
$this->inputValues = array();
$this->inputValues['aWidth'] = $aWidth;
$this->inputValues['aHeight'] = $aHeight;
$this->inputValues['aCachedName'] = $aCachedName;
$this->inputValues['aTimeout'] = $aTimeout;
$this->inputValues['aInline'] = $aInline;
$theme_class = DEFAULT_THEME_CLASS;
if (class_exists($theme_class)) {
$this->graph_theme = new $theme_class();
}
}
}
function PutAndStream($aImage, $aCacheFileName, $aInline, $aStrokeFileName)
{
// Check if we should always stroke the image to a file
if (_FORCE_IMGTOFILE) {
$aStrokeFileName = _FORCE_IMGDIR . GenImgName();
}
if ($aStrokeFileName != '') {
if ($aStrokeFileName == 'auto') {
$aStrokeFileName = GenImgName();
}
if (file_exists($aStrokeFileName)) {
// Wait for lock (to make sure no readers are trying to access the image)
$fd = fopen($aStrokeFileName, 'w');
$lock = flock($fd, LOCK_EX);
// Since the image write routines only accepts a filename which must not
// exist we need to delete the old file first
if (!@unlink($aStrokeFileName)) {
$lock = flock($fd, LOCK_UN);
JpGraphError::RaiseL(25111, $aStrokeFileName);
//(" Can't delete cached image $aStrokeFileName. Permission problem?");
}
$aImage->Stream($aStrokeFileName);
$lock = flock($fd, LOCK_UN);
fclose($fd);
} else {
$aImage->Stream($aStrokeFileName);
}
return;
}
if ($aCacheFileName != '' && USE_CACHE) {
$aCacheFileName = $this->cache_dir . $aCacheFileName;
if (file_exists($aCacheFileName)) {
if (!$aInline) {
// If we are generating image off-line (just writing to the cache)
// and the file exists and is still valid (no timeout)
// then do nothing, just return.
$diff = time() - filemtime($aCacheFileName);
if ($diff < 0) {
JpGraphError::RaiseL(25112, $aCacheFileName);
//(" Cached imagefile ($aCacheFileName) has file date in the future!!");
}
if ($this->timeout > 0 && $diff <= $this->timeout * 60) {
return;
}
}
// Wait for lock (to make sure no readers are trying to access the image)
$fd = fopen($aCacheFileName, 'w');
$lock = flock($fd, LOCK_EX);
if (!@unlink($aCacheFileName)) {
$lock = flock($fd, LOCK_UN);
JpGraphError::RaiseL(25113, $aStrokeFileName);
//(" Can't delete cached image $aStrokeFileName. Permission problem?");
}
$aImage->Stream($aCacheFileName);
$lock = flock($fd, LOCK_UN);
fclose($fd);
} else {
$this->MakeDirs(dirname($aCacheFileName));
if (!is_writeable(dirname($aCacheFileName))) {
JpGraphError::RaiseL(25114, $aCacheFileName);
//('PHP has not enough permissions to write to the cache file '.$aCacheFileName.'. Please make sure that the user running PHP has write permission for this file if you wan to use the cache system with JpGraph.');
}
$aImage->Stream($aCacheFileName);
}
$res = true;
// Set group to specified
if (CACHE_FILE_GROUP != '') {
$res = @chgrp($aCacheFileName, CACHE_FILE_GROUP);
}
if (CACHE_FILE_MOD != '') {
$res = @chmod($aCacheFileName, CACHE_FILE_MOD);
}
if (!$res) {
JpGraphError::RaiseL(25115, $aStrokeFileName);
//(" Can't set permission for cached image $aStrokeFileName. Permission problem?");
}
$aImage->Destroy();
if ($aInline) {
if ($fh = @fopen($aCacheFileName, "rb")) {
$aImage->Headers();
fpassthru($fh);
return;
} else {
JpGraphError::RaiseL(25116, $aFile);
//(" Cant open file from cache [$aFile]");
}
}
} elseif ($aInline) {
$aImage->Headers();
$aImage->Stream();
return;
}
}
<?php
include "../jpgraph.php";
include "../jpgraph_pie.php";
// Some data
$data = array(40, 21, 17, 14, 23);
// Create the Pie Graph.
$graph = new PieGraph(300, 200);
$graph->SetShadow();
// Set A title for the plot
$graph->title->Set("Client side image map");
$graph->title->SetFont(FF_FONT1, FS_BOLD);
// Create
$p1 = new PiePlot($data);
$p1->SetLegends(array("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul"));
$targ = array("pie_csimex1.php#1", "pie_csimex1.php#2", "pie_csimex1.php#3", "pie_csimex1.php#4", "pie_csimex1.php#5", "pie_csimex1.php#6");
$alts = array("val=%v", "val=%v", "val=%v", "val=%v", "val=%v", "val=%v");
$p1->SetCSIMTargets($targ, $alts);
$graph->Add($p1);
$graph->Stroke(GenImgName());
echo $graph->GetHTMLImageMap("myimagemap");
echo "<img src=\"" . GenImgName() . "\" ISMAP USEMAP=\"#myimagemap\" border=0>";
?>
function Graph($aWidth = 300, $aHeight = 200, $aCachedName = "", $aTimeOut = 0, $aInline = true)
{
global $gJpgBrandTiming;
// If timing is used create a new timing object
if ($gJpgBrandTiming) {
global $tim;
$tim = new JpgTimer();
$tim->Push();
}
if (!is_numeric($aWidth) || !is_numeric($aHeight)) {
JpGraphError::RaiseL(25008);
//('Image width/height argument in Graph::Graph() must be numeric');
}
// Automatically generate the image file name based on the name of the script that
// generates the graph
if ($aCachedName == "auto") {
$aCachedName = GenImgName();
}
// Should the image be streamed back to the browser or only to the cache?
$this->inline = $aInline;
$this->img = new RotImage($aWidth, $aHeight);
$this->cache = new ImgStreamCache($this->img);
$this->cache->SetTimeOut($aTimeOut);
$this->title = new Text();
$this->title->ParagraphAlign('center');
$this->title->SetFont(FF_FONT2, FS_BOLD);
$this->title->SetMargin(3);
$this->title->SetAlign('center');
$this->subtitle = new Text();
$this->subtitle->ParagraphAlign('center');
$this->subtitle->SetMargin(2);
$this->subtitle->SetAlign('center');
$this->subsubtitle = new Text();
$this->subsubtitle->ParagraphAlign('center');
$this->subsubtitle->SetMargin(2);
$this->subsubtitle->SetAlign('center');
$this->legend = new Legend();
$this->footer = new Footer();
// Window doesn't like '?' in the file name so replace it with an '_'
$aCachedName = str_replace("?", "_", $aCachedName);
// If the cached version exist just read it directly from the
// cache, stream it back to browser and exit
if ($aCachedName != "" && READ_CACHE && $aInline) {
if ($this->cache->GetAndStream($aCachedName)) {
exit;
}
}
$this->cache_name = $aCachedName;
$this->SetTickDensity();
// Normal density
$this->tabtitle = new GraphTabTitle();
}
function PutAndStream(&$aImage, $aCacheFileName, $aInline, $aStrokeFileName)
{
global $gJpgBrandTiming;
if ($gJpgBrandTiming) {
global $tim;
$t = $tim->Pop() / 1000.0;
$c = $aImage->SetColor("black");
$t = sprintf(BRAND_TIME_FORMAT, round($t, 3));
imagestring($this->img->img, 2, 5, $this->img->height - 20, $t, $c);
}
if (_FORCE_IMGTOFILE) {
$aStrokeFileName = _FORCE_IMGDIR . GenImgName();
}
if ($aStrokeFileName != "") {
if ($aStrokeFileName == "auto") {
$aStrokeFileName = GenImgName();
}
if (file_exists($aStrokeFileName)) {
if (!@unlink($aStrokeFileName)) {
JpGraphError::RaiseL(25111, $aStrokeFileName);
}
}
$aImage->Stream($aStrokeFileName);
return;
}
if ($aCacheFileName != "" && USE_CACHE) {
$aCacheFileName = $this->cache_dir . $aCacheFileName;
if (file_exists($aCacheFileName)) {
if (!$aInline) {
$diff = time() - filemtime($aCacheFileName);
if ($diff < 0) {
JpGraphError::RaiseL(25112, $aCacheFileName);
}
if ($this->timeout > 0 && $diff <= $this->timeout * 60) {
return;
}
}
if (!@unlink($aCacheFileName)) {
JpGraphError::RaiseL(25113, $aStrokeFileName);
}
$aImage->Stream($aCacheFileName);
} else {
$this->MakeDirs(dirname($aCacheFileName));
if (!is_writeable(dirname($aCacheFileName))) {
JpGraphError::RaiseL(25114, $aCacheFileName);
}
$aImage->Stream($aCacheFileName);
}
$res = true;
if (CACHE_FILE_GROUP != "") {
$res = @chgrp($aCacheFileName, CACHE_FILE_GROUP);
}
if (CACHE_FILE_MOD != "") {
$res = @chmod($aCacheFileName, CACHE_FILE_MOD);
}
if (!$res) {
JpGraphError::RaiseL(25115, $aStrokeFileName);
}
$aImage->Destroy();
if ($aInline) {
if ($fh = @fopen($aCacheFileName, "rb")) {
$this->img->Headers();
fpassthru($fh);
return;
} else {
JpGraphError::RaiseL(25116, $aFile);
}
}
} elseif ($aInline) {
$this->img->Headers();
$aImage->Stream();
return;
}
}
function Graph($aWidth = 300, $aHeight = 200, $aCachedName = "", $aTimeOut = 0, $aInline = true)
{
// If timing is used create a new timing object
if (BRAND_TIMING) {
global $tim;
$tim = new JpgTimer();
$tim->Push();
}
// Automatically generate the image file name based on the name of the script that
// generates the graph
if ($aCachedName == "auto") {
$aCachedName = GenImgName();
}
// Should the image be streamed back to the browser or only to the cache?
$this->inline = $aInline;
$this->img = new RotImage($aWidth, $aHeight);
$this->cache = new ImgStreamCache($this->img);
$this->cache->SetTimeOut($aTimeOut);
$this->title = new Text("");
$this->subtitle = new Text("");
$this->legend = new Legend();
// If the cached version exist just read it directly from the
// cache, stream it back to browser and exit
if ($aCachedName != "" && READ_CACHE && $aInline) {
if ($this->cache->GetAndStream($aCachedName)) {
exit;
}
}
$this->cache_name = $aCachedName;
$this->SetTickDensity();
// Normal density
}
