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Russ
2015-03-30 16:59:19 -04:00
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webdata/graph/pchart/class/pImage.class.php Normal file
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<?php
/*
pDraw - pChart core class
Version : 2.1.4
Made by : Jean-Damien POGOLOTTI
Last Update : 19/01/2014
This file can be distributed under the license you can find at :
http://www.pchart.net/license
You can find the whole class documentation on the pChart web site.
*/
/* The GD extension is mandatory */
if (!extension_loaded('gd') && !extension_loaded('gd2'))
{
echo "GD extension must be loaded. \r\n";
exit();
}
/* Image map handling */
define("IMAGE_MAP_STORAGE_FILE" , 680001);
define("IMAGE_MAP_STORAGE_SESSION" , 680002);
/* Last generated chart layout */
define("CHART_LAST_LAYOUT_REGULAR" , 680011);
define("CHART_LAST_LAYOUT_STACKED" , 680012);
/* ImageMap string delimiter */
define("IMAGE_MAP_DELIMITER" , chr(1));
class pImage extends pDraw
{
/* Image settings, size, quality, .. */
var $XSize = NULL; // Width of the picture
var $YSize = NULL; // Height of the picture
var $Picture = NULL; // GD picture object
var $Antialias = TRUE; // Turn antialias on or off
var $AntialiasQuality = 0; // Quality of the antialiasing implementation (0-1)
var $Mask = ""; // Already drawn pixels mask (Filled circle implementation)
var $TransparentBackground = FALSE; // Just to know if we need to flush the alpha channels when rendering
/* Graph area settings */
var $GraphAreaX1 = NULL; // Graph area X origin
var $GraphAreaY1 = NULL; // Graph area Y origin
var $GraphAreaX2 = NULL; // Graph area bottom right X position
var $GraphAreaY2 = NULL; // Graph area bottom right Y position
/* Scale settings */
var $ScaleMinDivHeight = 20; // Minimum height for scame divs
/* Font properties */
var $FontName = "fonts/GeosansLight.ttf"; // Default font file
var $FontSize = 12; // Default font size
var $FontBox = NULL; // Return the bounding box of the last written string
var $FontColorR = 0; // Default color settings
var $FontColorG = 0; // Default color settings
var $FontColorB = 0; // Default color settings
var $FontColorA = 100; // Default transparency
/* Shadow properties */
var $Shadow = FALSE; // Turn shadows on or off
var $ShadowX = NULL; // X Offset of the shadow
var $ShadowY = NULL; // Y Offset of the shadow
var $ShadowR = NULL; // R component of the shadow
var $ShadowG = NULL; // G component of the shadow
var $ShadowB = NULL; // B component of the shadow
var $Shadowa = NULL; // Alpha level of the shadow
/* Image map */
var $ImageMap = NULL; // Aray containing the image map
var $ImageMapIndex = "pChart"; // Name of the session array
var $ImageMapStorageMode = NULL; // Save the current imagemap storage mode
var $ImageMapAutoDelete = TRUE; // Automatic deletion of the image map temp files
/* Data Set */
var $DataSet = NULL; // Attached dataset
/* Last generated chart info */
var $LastChartLayout = CHART_LAST_LAYOUT_REGULAR; // Last layout : regular or stacked
/* Class constructor */
function pImage($XSize,$YSize,$DataSet=NULL,$TransparentBackground=FALSE)
{
$this->TransparentBackground = $TransparentBackground;
if ( $DataSet != NULL ) { $this->DataSet = $DataSet; }
$this->XSize = $XSize;
$this->YSize = $YSize;
$this->Picture = imagecreatetruecolor($XSize,$YSize);
if ( $this->TransparentBackground )
{
imagealphablending($this->Picture,FALSE);
imagefilledrectangle($this->Picture, 0,0,$XSize, $YSize, imagecolorallocatealpha($this->Picture, 255, 255, 255, 127));
imagealphablending($this->Picture,TRUE);
imagesavealpha($this->Picture,true);
}
else
{
$C_White = $this->AllocateColor($this->Picture,255,255,255);
imagefilledrectangle($this->Picture,0,0,$XSize,$YSize,$C_White);
}
}
/* Enable / Disable and set shadow properties */
function setShadow($Enabled=TRUE,$Format="")
{
$X = isset($Format["X"]) ? $Format["X"] : 2;
$Y = isset($Format["Y"]) ? $Format["Y"] : 2;
$R = isset($Format["R"]) ? $Format["R"] : 0;
$G = isset($Format["G"]) ? $Format["G"] : 0;
$B = isset($Format["B"]) ? $Format["B"] : 0;
$Alpha = isset($Format["Alpha"]) ? $Format["Alpha"] : 10;
$this->Shadow = $Enabled;
$this->ShadowX = $X;
$this->ShadowY = $Y;
$this->ShadowR = $R;
$this->ShadowG = $G;
$this->ShadowB = $B;
$this->Shadowa = $Alpha;
}
/* Set the graph area position */
function setGraphArea($X1,$Y1,$X2,$Y2)
{
if ( $X2 < $X1 || $X1 == $X2 || $Y2 < $Y1 || $Y1 == $Y2 ) { return(-1); }
$this->GraphAreaX1 = $X1; $this->DataSet->Data["GraphArea"]["X1"] = $X1;
$this->GraphAreaY1 = $Y1; $this->DataSet->Data["GraphArea"]["Y1"] = $Y1;
$this->GraphAreaX2 = $X2; $this->DataSet->Data["GraphArea"]["X2"] = $X2;
$this->GraphAreaY2 = $Y2; $this->DataSet->Data["GraphArea"]["Y2"] = $Y2;
}
/* Return the width of the picture */
function getWidth()
{ return($this->XSize); }
/* Return the heigth of the picture */
function getHeight()
{ return($this->YSize); }
/* Render the picture to a file */
function render($FileName)
{
if ( $this->TransparentBackground ) { imagealphablending($this->Picture,false); imagesavealpha($this->Picture,true); }
imagepng($this->Picture,$FileName);
}
/* Render the picture to a web browser stream */
function stroke($BrowserExpire=FALSE)
{
if ( $this->TransparentBackground ) { imagealphablending($this->Picture,false); imagesavealpha($this->Picture,true); }
if ( $BrowserExpire )
{
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
header("Cache-Control: no-cache");
header("Pragma: no-cache");
}
header('Content-type: image/png');
imagepng($this->Picture);
}
/* Automatic output method based on the calling interface */
function autoOutput($FileName="output.png")
{
if (php_sapi_name() == "cli")
$this->Render($FileName);
else
$this->Stroke();
}
/* Return the length between two points */
function getLength($X1,$Y1,$X2,$Y2)
{ return(sqrt(pow(max($X1,$X2)-min($X1,$X2),2)+pow(max($Y1,$Y2)-min($Y1,$Y2),2))); }
/* Return the orientation of a line */
function getAngle($X1,$Y1,$X2,$Y2)
{
$Opposite = $Y2 - $Y1; $Adjacent = $X2 - $X1;$Angle = rad2deg(atan2($Opposite,$Adjacent));
if ($Angle > 0) { return($Angle); } else { return(360-abs($Angle)); }
}
/* Return the surrounding box of text area */
function getTextBox_deprecated($X,$Y,$FontName,$FontSize,$Angle,$Text)
{
$Size = imagettfbbox($FontSize,$Angle,$FontName,$Text);
$Width = $this->getLength($Size[0],$Size[1],$Size[2],$Size[3])+1;
$Height = $this->getLength($Size[2],$Size[3],$Size[4],$Size[5])+1;
$RealPos[0]["X"] = $X; $RealPos[0]["Y"] = $Y;
$RealPos[1]["X"] = cos((360-$Angle)*PI/180)*$Width + $RealPos[0]["X"]; $RealPos[1]["Y"] = sin((360-$Angle)*PI/180)*$Width + $RealPos[0]["Y"];
$RealPos[2]["X"] = cos((270-$Angle)*PI/180)*$Height + $RealPos[1]["X"]; $RealPos[2]["Y"] = sin((270-$Angle)*PI/180)*$Height + $RealPos[1]["Y"];
$RealPos[3]["X"] = cos((180-$Angle)*PI/180)*$Width + $RealPos[2]["X"]; $RealPos[3]["Y"] = sin((180-$Angle)*PI/180)*$Width + $RealPos[2]["Y"];
$RealPos[TEXT_ALIGN_BOTTOMLEFT]["X"] = $RealPos[0]["X"]; $RealPos[TEXT_ALIGN_BOTTOMLEFT]["Y"] = $RealPos[0]["Y"];
$RealPos[TEXT_ALIGN_BOTTOMRIGHT]["X"] = $RealPos[1]["X"]; $RealPos[TEXT_ALIGN_BOTTOMRIGHT]["Y"] = $RealPos[1]["Y"];
return($RealPos);
}
/* Return the surrounding box of text area */
function getTextBox($X,$Y,$FontName,$FontSize,$Angle,$Text)
{
$coords = imagettfbbox($FontSize, 0, $FontName, $Text);
$a = deg2rad($Angle); $ca = cos($a); $sa = sin($a); $RealPos = array();
for($i = 0; $i < 7; $i += 2)
{
$RealPos[$i/2]["X"] = $X + round($coords[$i] * $ca + $coords[$i+1] * $sa);
$RealPos[$i/2]["Y"] = $Y + round($coords[$i+1] * $ca - $coords[$i] * $sa);
}
$RealPos[TEXT_ALIGN_BOTTOMLEFT]["X"] = $RealPos[0]["X"]; $RealPos[TEXT_ALIGN_BOTTOMLEFT]["Y"] = $RealPos[0]["Y"];
$RealPos[TEXT_ALIGN_BOTTOMRIGHT]["X"] = $RealPos[1]["X"]; $RealPos[TEXT_ALIGN_BOTTOMRIGHT]["Y"] = $RealPos[1]["Y"];
$RealPos[TEXT_ALIGN_TOPLEFT]["X"] = $RealPos[3]["X"]; $RealPos[TEXT_ALIGN_TOPLEFT]["Y"] = $RealPos[3]["Y"];
$RealPos[TEXT_ALIGN_TOPRIGHT]["X"] = $RealPos[2]["X"]; $RealPos[TEXT_ALIGN_TOPRIGHT]["Y"] = $RealPos[2]["Y"];
$RealPos[TEXT_ALIGN_BOTTOMMIDDLE]["X"] = ($RealPos[1]["X"]-$RealPos[0]["X"])/2+$RealPos[0]["X"]; $RealPos[TEXT_ALIGN_BOTTOMMIDDLE]["Y"] = ($RealPos[0]["Y"]-$RealPos[1]["Y"])/2+$RealPos[1]["Y"];
$RealPos[TEXT_ALIGN_TOPMIDDLE]["X"] = ($RealPos[2]["X"]-$RealPos[3]["X"])/2+$RealPos[3]["X"]; $RealPos[TEXT_ALIGN_TOPMIDDLE]["Y"] = ($RealPos[3]["Y"]-$RealPos[2]["Y"])/2+$RealPos[2]["Y"];
$RealPos[TEXT_ALIGN_MIDDLELEFT]["X"] = ($RealPos[0]["X"]-$RealPos[3]["X"])/2+$RealPos[3]["X"]; $RealPos[TEXT_ALIGN_MIDDLELEFT]["Y"] = ($RealPos[0]["Y"]-$RealPos[3]["Y"])/2+$RealPos[3]["Y"];
$RealPos[TEXT_ALIGN_MIDDLERIGHT]["X"] = ($RealPos[1]["X"]-$RealPos[2]["X"])/2+$RealPos[2]["X"]; $RealPos[TEXT_ALIGN_MIDDLERIGHT]["Y"] = ($RealPos[1]["Y"]-$RealPos[2]["Y"])/2+$RealPos[2]["Y"];
$RealPos[TEXT_ALIGN_MIDDLEMIDDLE]["X"] = ($RealPos[1]["X"]-$RealPos[3]["X"])/2+$RealPos[3]["X"]; $RealPos[TEXT_ALIGN_MIDDLEMIDDLE]["Y"] = ($RealPos[0]["Y"]-$RealPos[2]["Y"])/2+$RealPos[2]["Y"];
return($RealPos);
}
/* Set current font properties */
function setFontProperties($Format="")
{
$R = isset($Format["R"]) ? $Format["R"] : -1;
$G = isset($Format["G"]) ? $Format["G"] : -1;
$B = isset($Format["B"]) ? $Format["B"] : -1;
$Alpha = isset($Format["Alpha"]) ? $Format["Alpha"] : 100;
$FontName = isset($Format["FontName"]) ? $Format["FontName"] : NULL;
$FontSize = isset($Format["FontSize"]) ? $Format["FontSize"] : NULL;
if ( $R != -1) { $this->FontColorR = $R; }
if ( $G != -1) { $this->FontColorG = $G; }
if ( $B != -1) { $this->FontColorB = $B; }
if ( $Alpha != NULL) { $this->FontColorA = $Alpha; }
if ( $FontName != NULL )
$this->FontName = $FontName;
if ( $FontSize != NULL )
$this->FontSize = $FontSize;
}
/* Returns the 1st decimal values (used to correct AA bugs) */
function getFirstDecimal($Value)
{
$Values = preg_split("/\./",$Value);
if ( isset($Values[1]) ) { return(substr($Values[1],0,1)); } else { return(0); }
}
/* Attach a dataset to your pChart Object */
function setDataSet(&$DataSet)
{ $this->DataSet = $DataSet; }
/* Print attached dataset contents to STDOUT */
function printDataSet()
{ print_r($this->DataSet); }
/* Initialise the image map methods */
function initialiseImageMap($Name="pChart",$StorageMode=IMAGE_MAP_STORAGE_SESSION,$UniqueID="imageMap",$StorageFolder="tmp")
{
$this->ImageMapIndex = $Name;
$this->ImageMapStorageMode = $StorageMode;
if ($StorageMode == IMAGE_MAP_STORAGE_SESSION)
{
if(!isset($_SESSION)) { session_start(); }
$_SESSION[$this->ImageMapIndex] = NULL;
}
elseif($StorageMode == IMAGE_MAP_STORAGE_FILE)
{
$this->ImageMapFileName = $UniqueID;
$this->ImageMapStorageFolder = $StorageFolder;
if (file_exists($StorageFolder."/".$UniqueID.".map")) { unlink($StorageFolder."/".$UniqueID.".map"); }
}
}
/* Add a zone to the image map */
function addToImageMap($Type,$Plots,$Color=NULL,$Title=NULL,$Message=NULL,$HTMLEncode=FALSE)
{
if ( $this->ImageMapStorageMode == NULL ) { $this->initialiseImageMap(); }
/* Encode the characters in the imagemap in HTML standards */
$Title = str_replace("&#8364;","\u20AC",$Title);
$Title = htmlentities($Title,ENT_QUOTES,"ISO-8859-15");
if ( $HTMLEncode )
{
$Message = htmlentities($Message,ENT_QUOTES,"ISO-8859-15");
$Message = str_replace("&lt;","<",$Message);
$Message = str_replace("&gt;",">",$Message);
}
if ( $this->ImageMapStorageMode == IMAGE_MAP_STORAGE_SESSION )
{
if(!isset($_SESSION)) { $this->initialiseImageMap(); }
$_SESSION[$this->ImageMapIndex][] = array($Type,$Plots,$Color,$Title,$Message);
}
elseif($this->ImageMapStorageMode == IMAGE_MAP_STORAGE_FILE)
{
$Handle = fopen($this->ImageMapStorageFolder."/".$this->ImageMapFileName.".map", 'a');
fwrite($Handle, $Type.IMAGE_MAP_DELIMITER.$Plots.IMAGE_MAP_DELIMITER.$Color.IMAGE_MAP_DELIMITER.$Title.IMAGE_MAP_DELIMITER.$Message."\r\n");
fclose($Handle);
}
}
/* Remove VOID values from an imagemap custom values array */
function removeVOIDFromArray($SerieName, $Values)
{
if ( !isset($this->DataSet->Data["Series"][$SerieName]) ) { return(-1); }
$Result = "";
foreach($this->DataSet->Data["Series"][$SerieName]["Data"] as $Key => $Value)
{ if ( $Value != VOID && isset($Values[$Key]) ) { $Result[] = $Values[$Key]; } }
return($Result);
}
/* Replace the title of one image map serie */
function replaceImageMapTitle($OldTitle, $NewTitle)
{
if ( $this->ImageMapStorageMode == NULL ) { return(-1); }
if ( is_array($NewTitle) ) { $NewTitle = $this->removeVOIDFromArray($OldTitle, $NewTitle); }
if ( $this->ImageMapStorageMode == IMAGE_MAP_STORAGE_SESSION )
{
if(!isset($_SESSION)) { return(-1); }
if ( is_array($NewTitle) )
{ $ID = 0; foreach($_SESSION[$this->ImageMapIndex] as $Key => $Settings) { if ( $Settings[3] == $OldTitle && isset($NewTitle[$ID])) { $_SESSION[$this->ImageMapIndex][$Key][3] = $NewTitle[$ID]; $ID++; } } }
else
{ foreach($_SESSION[$this->ImageMapIndex] as $Key => $Settings) { if ( $Settings[3] == $OldTitle ) { $_SESSION[$this->ImageMapIndex][$Key][3] = $NewTitle; } } }
}
elseif( $this->ImageMapStorageMode == IMAGE_MAP_STORAGE_FILE )
{
$TempArray = "";
$Handle = @fopen($this->ImageMapStorageFolder."/".$this->ImageMapFileName.".map", "r");
if ($Handle)
{
while (($Buffer = fgets($Handle, 4096)) !== false)
{
$Fields = preg_split("/".IMAGE_MAP_DELIMITER."/",str_replace(array(chr(10),chr(13)),"",$Buffer));
$TempArray[] = array($Fields[0],$Fields[1],$Fields[2],$Fields[3],$Fields[4]);
}
fclose($Handle);
if ( is_array($NewTitle) )
{ $ID = 0; foreach($TempArray as $Key => $Settings) { if ( $Settings[3] == $OldTitle && isset($NewTitle[$ID]) ) { $TempArray[$Key][3] = $NewTitle[$ID]; $ID++; } } }
else
{ foreach($TempArray as $Key => $Settings) { if ( $Settings[3] == $OldTitle ) { $TempArray[$Key][3] = $NewTitle; } } }
$Handle = fopen($this->ImageMapStorageFolder."/".$this->ImageMapFileName.".map", 'w');
foreach($TempArray as $Key => $Settings)
{ fwrite($Handle, $Settings[0].IMAGE_MAP_DELIMITER.$Settings[1].IMAGE_MAP_DELIMITER.$Settings[2].IMAGE_MAP_DELIMITER.$Settings[3].IMAGE_MAP_DELIMITER.$Settings[4]."\r\n"); }
fclose($Handle);
}
}
}
/* Replace the values of the image map contents */
function replaceImageMapValues($Title, $Values)
{
if ( $this->ImageMapStorageMode == NULL ) { return(-1); }
$Values = $this->removeVOIDFromArray($Title, $Values);
$ID = 0;
if ( $this->ImageMapStorageMode == IMAGE_MAP_STORAGE_SESSION )
{
if(!isset($_SESSION)) { return(-1); }
foreach($_SESSION[$this->ImageMapIndex] as $Key => $Settings) { if ( $Settings[3] == $Title ) { if ( isset($Values[$ID]) ) { $_SESSION[$this->ImageMapIndex][$Key][4] = $Values[$ID]; } $ID++; } }
}
elseif( $this->ImageMapStorageMode == IMAGE_MAP_STORAGE_FILE )
{
$TempArray = "";
$Handle = @fopen($this->ImageMapStorageFolder."/".$this->ImageMapFileName.".map", "r");
if ($Handle)
{
while (($Buffer = fgets($Handle, 4096)) !== false)
{
$Fields = preg_split("/".IMAGE_MAP_DELIMITER."/",str_replace(array(chr(10),chr(13)),"",$Buffer));
$TempArray[] = array($Fields[0],$Fields[1],$Fields[2],$Fields[3],$Fields[4]);
}
fclose($Handle);
foreach($TempArray as $Key => $Settings) { if ( $Settings[3] == $Title ) { if ( isset($Values[$ID]) ) { $TempArray[$Key][4] = $Values[$ID]; } $ID++; } }
$Handle = fopen($this->ImageMapStorageFolder."/".$this->ImageMapFileName.".map", 'w');
foreach($TempArray as $Key => $Settings)
{ fwrite($Handle, $Settings[0].IMAGE_MAP_DELIMITER.$Settings[1].IMAGE_MAP_DELIMITER.$Settings[2].IMAGE_MAP_DELIMITER.$Settings[3].IMAGE_MAP_DELIMITER.$Settings[4]."\r\n"); }
fclose($Handle);
}
}
}
/* Dump the image map */
function dumpImageMap($Name="pChart",$StorageMode=IMAGE_MAP_STORAGE_SESSION,$UniqueID="imageMap",$StorageFolder="tmp")
{
$this->ImageMapIndex = $Name;
$this->ImageMapStorageMode = $StorageMode;
if ( $this->ImageMapStorageMode == IMAGE_MAP_STORAGE_SESSION )
{
if(!isset($_SESSION)) { session_start(); }
if ( $_SESSION[$Name] != NULL )
{
foreach($_SESSION[$Name] as $Key => $Params)
{ echo $Params[0].IMAGE_MAP_DELIMITER.$Params[1].IMAGE_MAP_DELIMITER.$Params[2].IMAGE_MAP_DELIMITER.$Params[3].IMAGE_MAP_DELIMITER.$Params[4]."\r\n"; }
}
}
elseif( $this->ImageMapStorageMode == IMAGE_MAP_STORAGE_FILE )
{
if (file_exists($StorageFolder."/".$UniqueID.".map"))
{
$Handle = @fopen($StorageFolder."/".$UniqueID.".map", "r");
if ($Handle) { while (($Buffer = fgets($Handle, 4096)) !== false) { echo $Buffer; } }
fclose($Handle);
if ( $this->ImageMapAutoDelete ) { unlink($StorageFolder."/".$UniqueID.".map"); }
}
}
/* When the image map is returned to the client, the script ends */
exit();
}
/* Return the HTML converted color from the RGB composite values */
function toHTMLColor($R,$G,$B)
{
$R=intval($R); $G=intval($G); $B=intval($B);
$R=dechex($R<0?0:($R>255?255:$R)); $G=dechex($G<0?0:($G>255?255:$G));$B=dechex($B<0?0:($B>255?255:$B));
$Color="#".(strlen($R) < 2?'0':'').$R; $Color.=(strlen($G) < 2?'0':'').$G; $Color.= (strlen($B) < 2?'0':'').$B;
return($Color);
}
/* Reverse an array of points */
function reversePlots($Plots)
{
$Result = "";
for($i=count($Plots)-2;$i>=0;$i=$i-2) { $Result[] = $Plots[$i]; $Result[] = $Plots[$i+1]; }
return($Result);
}
/* Mirror Effect */
function drawAreaMirror($X,$Y,$Width,$Height,$Format="")
{
$StartAlpha = isset($Format["StartAlpha"]) ? $Format["StartAlpha"] : 80;
$EndAlpha = isset($Format["EndAlpha"]) ? $Format["EndAlpha"] : 0;
$AlphaStep = ($StartAlpha-$EndAlpha)/$Height;
$Picture = imagecreatetruecolor($this->XSize,$this->YSize);
imagecopy($Picture,$this->Picture,0,0,0,0,$this->XSize,$this->YSize);
for($i=1;$i<=$Height;$i++)
{
if ( $Y+($i-1) < $this->YSize && $Y-$i > 0 ) { imagecopymerge($Picture,$this->Picture,$X,$Y+($i-1),$X,$Y-$i,$Width,1,$StartAlpha-$AlphaStep*$i); }
}
imagecopy($this->Picture,$Picture,0,0,0,0,$this->XSize,$this->YSize);
}
}
?>