CasperSecurity
<?php
/**
*--------------------------------------------------------------------
*
* Base class for Barcode 1D and 2D
*
*--------------------------------------------------------------------
* Copyright (C) Jean-Sebastien Goupil
* http://www.barcodephp.com
*/
include_once('BCGColor.php');
include_once('BCGLabel.php');
include_once('BCGArgumentException.php');
include_once('BCGDrawException.php');
abstract class BCGBarcode {
const COLOR_BG = 0;
const COLOR_FG = 1;
protected $colorFg, $colorBg; // Color Foreground, Barckground
protected $scale; // Scale of the graphic, default: 1
protected $offsetX, $offsetY; // Position where to start the drawing
protected $labels = array(); // Array of BCGLabel
protected $pushLabel = array(0, 0); // Push for the label, left and top
/**
* Constructor.
*/
protected function __construct() {
$this->setOffsetX(0);
$this->setOffsetY(0);
$this->setForegroundColor(0x000000);
$this->setBackgroundColor(0xffffff);
$this->setScale(1);
}
/**
* Parses the text before displaying it.
*
* @param mixed $text
*/
public function parse($text) {
}
/**
* Gets the foreground color of the barcode.
*
* @return BCGColor
*/
public function getForegroundColor() {
return $this->colorFg;
}
/**
* Sets the foreground color of the barcode. It could be a BCGColor
* value or simply a language code (white, black, yellow...) or hex value.
*
* @param mixed $code
*/
public function setForegroundColor($code) {
if ($code instanceof BCGColor) {
$this->colorFg = $code;
} else {
$this->colorFg = new BCGColor($code);
}
}
/**
* Gets the background color of the barcode.
*
* @return BCGColor
*/
public function getBackgroundColor() {
return $this->colorBg;
}
/**
* Sets the background color of the barcode. It could be a BCGColor
* value or simply a language code (white, black, yellow...) or hex value.
*
* @param mixed $code
*/
public function setBackgroundColor($code) {
if ($code instanceof BCGColor) {
$this->colorBg = $code;
} else {
$this->colorBg = new BCGColor($code);
}
foreach ($this->labels as $label) {
$label->setBackgroundColor($this->colorBg);
}
}
/**
* Sets the color.
*
* @param mixed $fg
* @param mixed $bg
*/
public function setColor($fg, $bg) {
$this->setForegroundColor($fg);
$this->setBackgroundColor($bg);
}
/**
* Gets the scale of the barcode.
*
* @return int
*/
public function getScale() {
return $this->scale;
}
/**
* Sets the scale of the barcode in pixel.
* If the scale is lower than 1, an exception is raised.
*
* @param int $scale
*/
public function setScale($scale) {
$scale = intval($scale);
if ($scale <= 0) {
throw new BCGArgumentException('The scale must be larger than 0.', 'scale');
}
$this->scale = $scale;
}
/**
* Abstract method that draws the barcode on the resource.
*
* @param resource $im
*/
public abstract function draw($im);
/**
* Returns the maximal size of a barcode.
* [0]->width
* [1]->height
*
* @param int $w
* @param int $h
* @return int[]
*/
public function getDimension($w, $h) {
$labels = $this->getBiggestLabels(false);
$pixelsAround = array(0, 0, 0, 0); // TRBL
if (isset($labels[BCGLabel::POSITION_TOP])) {
$dimension = $labels[BCGLabel::POSITION_TOP]->getDimension();
$pixelsAround[0] += $dimension[1];
}
if (isset($labels[BCGLabel::POSITION_RIGHT])) {
$dimension = $labels[BCGLabel::POSITION_RIGHT]->getDimension();
$pixelsAround[1] += $dimension[0];
}
if (isset($labels[BCGLabel::POSITION_BOTTOM])) {
$dimension = $labels[BCGLabel::POSITION_BOTTOM]->getDimension();
$pixelsAround[2] += $dimension[1];
}
if (isset($labels[BCGLabel::POSITION_LEFT])) {
$dimension = $labels[BCGLabel::POSITION_LEFT]->getDimension();
$pixelsAround[3] += $dimension[0];
}
$finalW = ($w + $this->offsetX) * $this->scale;
$finalH = ($h + $this->offsetY) * $this->scale;
// This section will check if a top/bottom label is too big for its width and left/right too big for its height
$reversedLabels = $this->getBiggestLabels(true);
foreach ($reversedLabels as $label) {
$dimension = $label->getDimension();
$alignment = $label->getAlignment();
if ($label->getPosition() === BCGLabel::POSITION_LEFT || $label->getPosition() === BCGLabel::POSITION_RIGHT) {
if ($alignment === BCGLabel::ALIGN_TOP) {
$pixelsAround[2] = max($pixelsAround[2], $dimension[1] - $finalH);
} elseif ($alignment === BCGLabel::ALIGN_CENTER) {
$temp = ceil(($dimension[1] - $finalH) / 2);
$pixelsAround[0] = max($pixelsAround[0], $temp);
$pixelsAround[2] = max($pixelsAround[2], $temp);
} elseif ($alignment === BCGLabel::ALIGN_BOTTOM) {
$pixelsAround[0] = max($pixelsAround[0], $dimension[1] - $finalH);
}
} else {
if ($alignment === BCGLabel::ALIGN_LEFT) {
$pixelsAround[1] = max($pixelsAround[1], $dimension[0] - $finalW);
} elseif ($alignment === BCGLabel::ALIGN_CENTER) {
$temp = ceil(($dimension[0] - $finalW) / 2);
$pixelsAround[1] = max($pixelsAround[1], $temp);
$pixelsAround[3] = max($pixelsAround[3], $temp);
} elseif ($alignment === BCGLabel::ALIGN_RIGHT) {
$pixelsAround[3] = max($pixelsAround[3], $dimension[0] - $finalW);
}
}
}
$this->pushLabel[0] = $pixelsAround[3];
$this->pushLabel[1] = $pixelsAround[0];
$finalW = ($w + $this->offsetX) * $this->scale + $pixelsAround[1] + $pixelsAround[3];
$finalH = ($h + $this->offsetY) * $this->scale + $pixelsAround[0] + $pixelsAround[2];
return array($finalW, $finalH);
}
/**
* Gets the X offset.
*
* @return int
*/
public function getOffsetX() {
return $this->offsetX;
}
/**
* Sets the X offset.
*
* @param int $offsetX
*/
public function setOffsetX($offsetX) {
$offsetX = intval($offsetX);
if ($offsetX < 0) {
throw new BCGArgumentException('The offset X must be 0 or larger.', 'offsetX');
}
$this->offsetX = $offsetX;
}
/**
* Gets the Y offset.
*
* @return int
*/
public function getOffsetY() {
return $this->offsetY;
}
/**
* Sets the Y offset.
*
* @param int $offsetY
*/
public function setOffsetY($offsetY) {
$offsetY = intval($offsetY);
if ($offsetY < 0) {
throw new BCGArgumentException('The offset Y must be 0 or larger.', 'offsetY');
}
$this->offsetY = $offsetY;
}
/**
* Adds the label to the drawing.
*
* @param BCGLabel $label
*/
public function addLabel(BCGLabel $label) {
$label->setBackgroundColor($this->colorBg);
$this->labels[] = $label;
}
/**
* Removes the label from the drawing.
*
* @param BCGLabel $label
*/
public function removeLabel(BCGLabel $label) {
$remove = -1;
$c = count($this->labels);
for ($i = 0; $i < $c; $i++) {
if ($this->labels[$i] === $label) {
$remove = $i;
break;
}
}
if ($remove > -1) {
array_splice($this->labels, $remove, 1);
}
}
/**
* Clears the labels.
*/
public function clearLabels() {
$this->labels = array();
}
/**
* Draws the text.
* The coordinate passed are the positions of the barcode.
* $x1 and $y1 represent the top left corner.
* $x2 and $y2 represent the bottom right corner.
*
* @param resource $im
* @param int $x1
* @param int $y1
* @param int $x2
* @param int $y2
*/
protected function drawText($im, $x1, $y1, $x2, $y2) {
foreach ($this->labels as $label) {
$label->draw($im,
($x1 + $this->offsetX) * $this->scale + $this->pushLabel[0],
($y1 + $this->offsetY) * $this->scale + $this->pushLabel[1],
($x2 + $this->offsetX) * $this->scale + $this->pushLabel[0],
($y2 + $this->offsetY) * $this->scale + $this->pushLabel[1]);
}
}
/**
* Draws 1 pixel on the resource at a specific position with a determined color.
*
* @param resource $im
* @param int $x
* @param int $y
* @param int $color
*/
protected function drawPixel($im, $x, $y, $color = self::COLOR_FG) {
$xR = ($x + $this->offsetX) * $this->scale + $this->pushLabel[0];
$yR = ($y + $this->offsetY) * $this->scale + $this->pushLabel[1];
// We always draw a rectangle
imagefilledrectangle($im,
$xR,
$yR,
$xR + $this->scale - 1,
$yR + $this->scale - 1,
$this->getColor($im, $color));
}
/**
* Draws an empty rectangle on the resource at a specific position with a determined color.
*
* @param resource $im
* @param int $x1
* @param int $y1
* @param int $x2
* @param int $y2
* @param int $color
*/
protected function drawRectangle($im, $x1, $y1, $x2, $y2, $color = self::COLOR_FG) {
if ($this->scale === 1) {
imagefilledrectangle($im,
($x1 + $this->offsetX) + $this->pushLabel[0],
($y1 + $this->offsetY) + $this->pushLabel[1],
($x2 + $this->offsetX) + $this->pushLabel[0],
($y2 + $this->offsetY) + $this->pushLabel[1],
$this->getColor($im, $color));
} else {
imagefilledrectangle($im, ($x1 + $this->offsetX) * $this->scale + $this->pushLabel[0], ($y1 + $this->offsetY) * $this->scale + $this->pushLabel[1], ($x2 + $this->offsetX) * $this->scale + $this->pushLabel[0] + $this->scale - 1, ($y1 + $this->offsetY) * $this->scale + $this->pushLabel[1] + $this->scale - 1, $this->getColor($im, $color));
imagefilledrectangle($im, ($x1 + $this->offsetX) * $this->scale + $this->pushLabel[0], ($y1 + $this->offsetY) * $this->scale + $this->pushLabel[1], ($x1 + $this->offsetX) * $this->scale + $this->pushLabel[0] + $this->scale - 1, ($y2 + $this->offsetY) * $this->scale + $this->pushLabel[1] + $this->scale - 1, $this->getColor($im, $color));
imagefilledrectangle($im, ($x2 + $this->offsetX) * $this->scale + $this->pushLabel[0], ($y1 + $this->offsetY) * $this->scale + $this->pushLabel[1], ($x2 + $this->offsetX) * $this->scale + $this->pushLabel[0] + $this->scale - 1, ($y2 + $this->offsetY) * $this->scale + $this->pushLabel[1] + $this->scale - 1, $this->getColor($im, $color));
imagefilledrectangle($im, ($x1 + $this->offsetX) * $this->scale + $this->pushLabel[0], ($y2 + $this->offsetY) * $this->scale + $this->pushLabel[1], ($x2 + $this->offsetX) * $this->scale + $this->pushLabel[0] + $this->scale - 1, ($y2 + $this->offsetY) * $this->scale + $this->pushLabel[1] + $this->scale - 1, $this->getColor($im, $color));
}
}
/**
* Draws a filled rectangle on the resource at a specific position with a determined color.
*
* @param resource $im
* @param int $x1
* @param int $y1
* @param int $x2
* @param int $y2
* @param int $color
*/
protected function drawFilledRectangle($im, $x1, $y1, $x2, $y2, $color = self::COLOR_FG) {
if ($x1 > $x2) { // Swap
$x1 ^= $x2 ^= $x1 ^= $x2;
}
if ($y1 > $y2) { // Swap
$y1 ^= $y2 ^= $y1 ^= $y2;
}
imagefilledrectangle($im,
($x1 + $this->offsetX) * $this->scale + $this->pushLabel[0],
($y1 + $this->offsetY) * $this->scale + $this->pushLabel[1],
($x2 + $this->offsetX) * $this->scale + $this->pushLabel[0] + $this->scale - 1,
($y2 + $this->offsetY) * $this->scale + $this->pushLabel[1] + $this->scale - 1,
$this->getColor($im, $color));
}
/**
* Allocates the color based on the integer.
*
* @param resource $im
* @param int $color
* @return resource
*/
protected function getColor($im, $color) {
if ($color === self::COLOR_BG) {
return $this->colorBg->allocate($im);
} else {
return $this->colorFg->allocate($im);
}
}
/**
* Returning the biggest label widths for LEFT/RIGHT and heights for TOP/BOTTOM.
*
* @param bool $reversed
* @return BCGLabel[]
*/
private function getBiggestLabels($reversed = false) {
$searchLR = $reversed ? 1 : 0;
$searchTB = $reversed ? 0 : 1;
$labels = array();
foreach ($this->labels as $label) {
$position = $label->getPosition();
if (isset($labels[$position])) {
$savedDimension = $labels[$position]->getDimension();
$dimension = $label->getDimension();
if ($position === BCGLabel::POSITION_LEFT || $position === BCGLabel::POSITION_RIGHT) {
if ($dimension[$searchLR] > $savedDimension[$searchLR]) {
$labels[$position] = $label;
}
} else {
if ($dimension[$searchTB] > $savedDimension[$searchTB]) {
$labels[$position] = $label;
}
}
} else {
$labels[$position] = $label;
}
}
return $labels;
}
}
?>