class pImage in Visitors 7
Same name and namespace in other branches
Hierarchy
Expanded class hierarchy of pImage
File
- pChart/
class/ pImage.class.php, line 34
View source
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("€", "\\u20AC", $Title);
$Title = htmlentities($Title, ENT_QUOTES, "ISO-8859-15");
if ($HTMLEncode) {
$Message = htmlentities($Message, ENT_QUOTES, "ISO-8859-15");
$Message = str_replace("<", "<", $Message);
$Message = str_replace(">", ">", $Message);
}
if ($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);
}
}