CasperSecurity
<?php
/**
*--------------------------------------------------------------------
*
* Class for Label
*
*--------------------------------------------------------------------
* Copyright (C) Jean-Sebastien Goupil
* http://www.barcodephp.com
*/
include_once('BCGArgumentException.php');
include_once('BCGFontPhp.php');
include_once('BCGFontFile.php');
class BCGLabel {
const POSITION_TOP = 0;
const POSITION_RIGHT = 1;
const POSITION_BOTTOM = 2;
const POSITION_LEFT = 3;
const ALIGN_LEFT = 0;
const ALIGN_TOP = 0;
const ALIGN_CENTER = 1;
const ALIGN_RIGHT = 2;
const ALIGN_BOTTOM = 2;
private $font;
private $text;
private $position;
private $alignment;
private $offset;
private $spacing;
private $rotationAngle;
private $backgroundColor;
/**
* Constructor.
*
* @param string $text
* @param BCGFont $font
* @param int $position
* @param int $alignment
*/
public function __construct($text = '', $font = null, $position = self::POSITION_BOTTOM, $alignment = self::ALIGN_CENTER) {
$font = $font === null ? new BCGFontPhp(5) : $font;
$this->setFont($font);
$this->setText($text);
$this->setPosition($position);
$this->setAlignment($alignment);
$this->setSpacing(4);
$this->setOffset(0);
$this->setRotationAngle(0);
$this->setBackgroundColor(new BCGColor('white'));
}
/**
* Gets the text.
*
* @return string
*/
public function getText() {
return $this->font->getText();
}
/**
* Sets the text.
*
* @param string $text
*/
public function setText($text) {
$this->text = $text;
$this->font->setText($this->text);
}
/**
* Gets the font.
*
* @return BCGFont
*/
public function getFont() {
return $this->font;
}
/**
* Sets the font.
*
* @param BCGFont $font
*/
public function setFont($font) {
if ($font === null) {
throw new BCGArgumentException('Font cannot be null.', 'font');
}
$this->font = clone $font;
$this->font->setText($this->text);
$this->font->setRotationAngle($this->rotationAngle);
$this->font->setBackgroundColor($this->backgroundColor);
}
/**
* Gets the text position for drawing.
*
* @return int
*/
public function getPosition() {
return $this->position;
}
/**
* Sets the text position for drawing.
*
* @param int $position
*/
public function setPosition($position) {
$position = intval($position);
if ($position !== self::POSITION_TOP && $position !== self::POSITION_RIGHT && $position !== self::POSITION_BOTTOM && $position !== self::POSITION_LEFT) {
throw new BCGArgumentException('The text position must be one of a valid constant.', 'position');
}
$this->position = $position;
}
/**
* Gets the text alignment for drawing.
*
* @return int
*/
public function getAlignment() {
return $this->alignment;
}
/**
* Sets the text alignment for drawing.
*
* @param int $alignment
*/
public function setAlignment($alignment) {
$alignment = intval($alignment);
if ($alignment !== self::ALIGN_LEFT && $alignment !== self::ALIGN_TOP && $alignment !== self::ALIGN_CENTER && $alignment !== self::ALIGN_RIGHT && $alignment !== self::ALIGN_BOTTOM) {
throw new BCGArgumentException('The text alignment must be one of a valid constant.', 'alignment');
}
$this->alignment = $alignment;
}
/**
* Gets the offset.
*
* @return int
*/
public function getOffset() {
return $this->offset;
}
/**
* Sets the offset.
*
* @param int $offset
*/
public function setOffset($offset) {
$this->offset = intval($offset);
}
/**
* Gets the spacing.
*
* @return int
*/
public function getSpacing() {
return $this->spacing;
}
/**
* Sets the spacing.
*
* @param int $spacing
*/
public function setSpacing($spacing) {
$this->spacing = max(0, intval($spacing));
}
/**
* Gets the rotation angle in degree.
*
* @return float
*/
public function getRotationAngle() {
return $this->font->getRotationAngle();
}
/**
* Sets the rotation angle in degree.
*
* @param int $rotationAngle
*/
public function setRotationAngle($rotationAngle) {
$this->rotationAngle = intval($rotationAngle);
$this->font->setRotationAngle($this->rotationAngle);
}
/**
* Gets the background color in case of rotation.
*
* @return BCGColor
*/
public function getBackgroundColor($backgroundColor) {
return $this->font->getBackgroundColor();
}
/**
* Sets the background color in case of rotation.
*
* @param BCGColor $backgroundColor
*/
public /*internal*/ function setBackgroundColor($backgroundColor) {
$this->backgroundColor = $backgroundColor;
$this->font->setBackgroundColor($this->backgroundColor);
}
/**
* Gets the dimension taken by the label, including the spacing and offset.
* [0]: width
* [1]: height
*
* @return int[]
*/
public function getDimension() {
$w = 0;
$h = 0;
$dimension = $this->font->getDimension();
$w = $dimension[0];
$h = $dimension[1];
if ($this->position === self::POSITION_TOP || $this->position === self::POSITION_BOTTOM) {
$h += $this->spacing;
$w += max(0, $this->offset);
} else {
$w += $this->spacing;
$h += max(0, $this->offset);
}
return array($w, $h);
}
/**
* 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 $y2
*/
public /*internal*/ function draw($im, $x1, $y1, $x2, $y2) {
$x = 0;
$y = 0;
$fontDimension = $this->font->getDimension();
if ($this->position === self::POSITION_TOP || $this->position === self::POSITION_BOTTOM) {
if ($this->position === self::POSITION_TOP) {
$y = $y1 - $this->spacing - $fontDimension[1];
} elseif ($this->position === self::POSITION_BOTTOM) {
$y = $y2 + $this->spacing;
}
if ($this->alignment === self::ALIGN_CENTER) {
$x = ($x2 - $x1) / 2 + $x1 - $fontDimension[0] / 2 + $this->offset;
} elseif ($this->alignment === self::ALIGN_LEFT) {
$x = $x1 + $this->offset;
} else {
$x = $x2 + $this->offset - $fontDimension[0];
}
} else {
if ($this->position === self::POSITION_LEFT) {
$x = $x1 - $this->spacing - $fontDimension[0];
} elseif ($this->position === self::POSITION_RIGHT) {
$x = $x2 + $this->spacing;
}
if ($this->alignment === self::ALIGN_CENTER) {
$y = ($y2 - $y1) / 2 + $y1 - $fontDimension[1] / 2 + $this->offset;
} elseif ($this->alignment === self::ALIGN_TOP) {
$y = $y1 + $this->offset;
} else {
$y = $y2 + $this->offset - $fontDimension[1];
}
}
$this->font->setText($this->text);
$this->font->draw($im, 0, $x, $y);
}
}