/**
* display any message as a PNG image
*
* @param string $txt message to be displayed
*/
function ImageFlushError($txt)
{
Header('Content-Type: image/png');
$image = imagecreate(safe_GET_integer('width', 100, 1000, 400), safe_GET_integer('height', 40, 400, 100));
$bg = imagecolorallocate($image, 0xee, 0xee, 0xee);
$red = Imagecolorallocate($image, 0xff, 0x0, 0x0);
imagestring($image, 2, 10, 10, $txt, $red);
imagepng($image);
}
private function create_do()
{
$this->im = Imagecreate($this->config['width'], $this->config['height']);
//设置背景为白色
Imagecolorallocate($this->im, $this->config['color'][0], $this->config['color'][1], $this->config['color'][2]);
//为此背景加个边框
if ($this->config['boxline'] == True) {
$bordercolor = Imagecolorallocate($this->im, 37, 37, 37);
Imagerectangle($this->im, 0, 0, $this->config['width'] - 1, $this->config['height'] - 1, $bordercolor);
}
//生成验证码
$this->create_str();
$coder = $_SESSION[$this->config['codname']];
//输入文字
$fontcolor = Imagecolorallocate($this->im, 46, 46, 46);
for ($i = 0; $i < $this->config['length']; $i++) {
Imagestring($this->im, 5, $i * 10 + 6, rand(2, 5), $coder[$i], $fontcolor);
}
//加入干扰线
$interfere = $this->config['interfere'];
$interfere = $interfere > 30 ? "30" : $interfere;
if (!empty($interfere) && $interfere > 1) {
for ($i = 1; $i < $interfere; $i++) {
$linecolor = Imagecolorallocate($this->im, rand(0, 255), rand(0, 255), rand(0, 255));
$x = rand(1, $this->config['width']);
$y = rand(1, $this->config['height']);
$x2 = rand($x - 10, $x + 10);
$y2 = rand($y - 10, $y + 10);
Imageline($this->im, $x, $y, $x2, $y2, $linecolor);
}
}
ob_clean();
Header("Pragma:no-cache\r\n");
Header("Cache-Control:no-cache\r\n");
Header("Expires:0\r\n");
Header("Content-type:Image/jpeg\r\n");
Imagejpeg($this->im);
Imagedestroy($this->im);
exit;
}
/**
* Draw
*
* @return image resource
*/
public function draw()
{
// Create image
$im = imageCreate($this->matrixSize, $this->matrixSize);
// Colours used in Barcode
$color = array(Imagecolorallocate($im, 255, 255, 255), Imagecolorallocate($im, 0, 0, 0));
for ($y = 0; $y < $this->matrixSize; $y++) {
for ($x = 0; $x < $this->matrixSize; $x++) {
imagesetpixel($im, $x, $y, $color[$this->matrix[$y][$x]]);
}
}
$dimension = $this->symbolSize * $this->moduleSize;
$dimensionNoQuiet = $this->matrixSize * $this->moduleSize;
$out = ImageCreate($dimension, $dimension);
Imagecolorallocate($out, 255, 255, 255);
$move = self::QUIET_ZONE * $this->moduleSize;
// resize image and add quiet zone
imagecopyresized($out, $im, $move, $move, 0, 0, $dimensionNoQuiet, $dimensionNoQuiet, $this->matrixSize, $this->matrixSize);
return $out;
}
/**
* Draw
* Create image with barcode
*
* @param bool $showText
* @return image resource
*/
public function draw($showText = true)
{
// Image create
$margin = $this->margin * $this->moduleSize;
$im = ImageCreate($this->getBarcodeLen() * $this->moduleSize + 2 * $margin, $this->height + $this->fontSize + 2 * $margin);
// Color set
$white = Imagecolorallocate($im, 255, 255, 255);
$black = Imagecolorallocate($im, 0, 0, 0);
// Draw lines
$pos = 0;
foreach ($this->biteCode as $type => $values) {
switch ($type) {
case 'DATA':
case 'DATA2':
// Data
for ($i = 0; $i < strlen($values); $i++) {
$color = $values[$i] == '1' ? $black : $white;
imagefilledrectangle($im, $pos * $this->moduleSize + $margin, $margin, ($pos + 1) * $this->moduleSize + $margin, $this->height - 5 * $this->moduleSize + $margin, $color);
$pos++;
}
break;
default:
// Special chars
// will be longer
for ($i = 0; $i < strlen($values); $i++) {
$color = $values[$i] == '1' ? $black : $white;
imagefilledrectangle($im, $pos * $this->moduleSize + $margin, $margin, ($pos + 1) * $this->moduleSize + $margin, $this->height + $margin, $color);
$pos++;
}
break;
}
}
// Text
if ($showText) {
$textWidth = ImageFontWidth($this->fontSize) * strlen($this->text);
imagestring($im, $this->fontSize, $this->getBarcodeLen() * $this->moduleSize / 2 - $textWidth / 2 + $margin, $this->height - $this->fontSize / 2 + $margin, $this->text, $black);
}
return $im;
}
/**
* Draw
*
* @param bool $showText
* @return image resource
*/
public function draw($showText = true)
{
$im = parent::draw(false);
$margin = $this->margin * $this->moduleSize;
$white = Imagecolorallocate($im, 255, 255, 255);
$black = Imagecolorallocate($im, 0, 0, 0);
if ($showText) {
$im2 = ImageCreate($this->getBarcodeLen() * $this->moduleSize + 2 * $margin + $margin, $this->height + $this->fontSize + 2 * $margin);
imagecopy($im2, $im, $margin, 0, 0, 0, $this->getBarcodeLen() * $this->moduleSize + 2 * $margin, $this->height + $this->fontSize + 2 * $margin);
$charsA = $this->text[0];
for ($i = 1; $i <= strlen($this->text); $i++) {
if ($i <= 6) {
$charsB .= $this->text[$i];
} else {
$charsC .= $this->text[$i];
}
}
$textWidth = ImageFontWidth($this->fontSize) * strlen($charsB);
imagestring($im2, $this->fontSize, $this->getBarcodeLen() * $this->moduleSize / 4 - $textWidth / 2 + 2 * $margin, $this->height - $this->fontSize / 2 + $margin, $charsB, $black);
$textWidth = ImageFontWidth($this->fontSize) * strlen($charsC);
imagestring($im2, $this->fontSize, $this->getBarcodeLen() * $this->moduleSize - $this->getBarcodeLen() * $this->moduleSize / 4 - $textWidth / 2 + 2 * $margin, $this->height - $this->fontSize / 2 + $margin, $charsC, $black);
}
return $im2;
}
/**
* Draw
* Add text into barcode
*
* @param bool $showText
* @return image resource
*/
public function draw($showText = true)
{
$im = parent::draw(false);
$margin = $this->margin * $this->moduleSize;
$white = Imagecolorallocate($im, 255, 255, 255);
$black = Imagecolorallocate($im, 0, 0, 0);
if ($showText) {
// Increase space between symbol 2x
$im2 = ImageCreate($this->getBarcodeLen() * $this->moduleSize + 2 * $margin + $margin, $this->height + $this->fontSize + 2 * $margin);
imagecopy($im2, $im, $margin, 0, 0, 0, $this->getBarcodeLen() * $this->moduleSize + 2 * $margin, $this->height + $this->fontSize + 2 * $margin);
// Divide text into three parts and each insert to the diffrerent place
$charsA = $this->text[0];
// first char
for ($i = 1; $i <= strlen($this->text); $i++) {
if ($i <= 6) {
$charsB .= $this->text[$i];
} else {
$charsC .= $this->text[$i];
}
}
// Insert A
$textWidth = ImageFontWidth($this->fontSize) * strlen($charsA);
imagestring($im2, $this->fontSize, $margin, $this->height - $this->fontSize / 2 + $margin, $charsA, $black);
// Insert B
$textWidth = ImageFontWidth($this->fontSize) * strlen($charsB);
imagestring($im2, $this->fontSize, $this->getBarcodeLen() * $this->moduleSize / 4 - $textWidth / 2 + 2 * $margin, $this->height - $this->fontSize / 2 + $margin, $charsB, $black);
// Insert C
$textWidth = ImageFontWidth($this->fontSize) * strlen($charsC);
imagestring($im2, $this->fontSize, $this->getBarcodeLen() * $this->moduleSize - $this->getBarcodeLen() * $this->moduleSize / 4 - $textWidth / 2 + 2 * $margin, $this->height - $this->fontSize / 2 + $margin, $charsC, $black);
}
return $im2;
}