public function getAvatar($string, $widthHeight = 12, $theme = 'default')
{
$widthHeight = max($widthHeight, 12);
$md5 = md5($string);
$fileName = _TMP_DIR_ . '/' . $md5 . '.png';
if ($this->tmpFileExists($fileName)) {
return $fileName;
}
// Create seed.
$seed = intval(substr($md5, 0, 6), 16);
mt_srand($seed);
$body = array('legs' => mt_rand(0, count($this->availableParts[$theme]['legs']) - 1), 'hair' => mt_rand(0, count($this->availableParts[$theme]['hair']) - 1), 'arms' => mt_rand(0, count($this->availableParts[$theme]['arms']) - 1), 'body' => mt_rand(0, count($this->availableParts[$theme]['body']) - 1), 'eyes' => mt_rand(0, count($this->availableParts[$theme]['eyes']) - 1), 'mouth' => mt_rand(0, count($this->availableParts[$theme]['mouth']) - 1));
// Avatar random parts.
$parts = array('legs' => $this->availableParts[$theme]['legs'][$body['legs']], 'hair' => $this->availableParts[$theme]['hair'][$body['hair']], 'arms' => $this->availableParts[$theme]['arms'][$body['arms']], 'body' => $this->availableParts[$theme]['body'][$body['body']], 'eyes' => $this->availableParts[$theme]['eyes'][$body['eyes']], 'mouth' => $this->availableParts[$theme]['mouth'][$body['mouth']]);
$avatar = imagecreate($widthHeight, $widthHeight);
imagesavealpha($avatar, true);
imagealphablending($avatar, false);
$background = imagecolorallocate($avatar, 0, 0, 0);
$line_colour = imagecolorallocate($avatar, mt_rand(0, 200) + 55, mt_rand(0, 200) + 55, mt_rand(0, 200) + 55);
imagecolortransparent($avatar, $background);
imagefilledrectangle($avatar, 0, 0, $widthHeight, $widthHeight, $background);
// Fill avatar with random parts.
foreach ($parts as &$part) {
$this->drawPart($part, $avatar, $widthHeight, $line_colour, $background);
}
imagepng($avatar, $fileName);
imagecolordeallocate($avatar, $line_colour);
imagecolordeallocate($avatar, $background);
imagedestroy($avatar);
return $fileName;
}
static function load($filename)
{
$info = getimagesize($filename);
list($width, $height) = $info;
if (!$width || !$height) {
return null;
}
$image = null;
switch ($info['mime']) {
case 'image/gif':
$image = imagecreatefromgif($filename);
break;
case 'image/jpeg':
$image = imagecreatefromjpeg($filename);
break;
case 'image/png':
$image = imagecreatetruecolor($width, $height);
$white = imagecolorallocate($image, 255, 255, 255);
imagefill($image, 0, 0, $white);
$png = imagecreatefrompng($filename);
imagealphablending($png, true);
imagesavealpha($png, true);
imagecopy($image, $png, 0, 0, 0, 0, $width, $height);
imagedestroy($png);
break;
}
if ($image) {
return new image($image, $width, $height);
} else {
return null;
}
}
function GetPartialImage($url)
{
$W = 150;
$H = 130;
$F = 80;
$STEP = 1.0 / $F;
$im = imagecreatefromjpeg($url);
$dest = imagecreatetruecolor($W, $H);
imagecopy($dest, $im, 0, 0, 35, 40, $W, $H);
$a = 1;
for( $y = $H - $F; $y < $H; $y++ )
{
for ( $x = 0; $x < $W; $x++ )
{
$i = imagecolorat($dest, $x, $y);
$c = imagecolorsforindex($dest, $i);
$c = imagecolorallocate($dest,
a($c['red'], $a),
a($c['green'], $a),
a($c['blue'], $a)
);
imagesetpixel($dest, $x, $y, $c);
}
$a -= $STEP;
}
header('Content-type: image/png');
imagepng($dest);
imagedestroy($dest);
imagedestroy($im);
}
public function load($filename, $return_data = false)
{
extract(parent::load($filename, $return_data));
$return = false;
$image_extension == 'jpg' and $image_extension = 'jpeg';
if (!$return_data) {
$this->image_data !== null and imagedestroy($this->image_data);
$this->image_data = null;
}
// Check if the function exists
if (function_exists('imagecreatefrom' . $image_extension)) {
// Create a new transparent image.
$sizes = $this->sizes($image_fullpath);
$tmpImage = call_user_func('imagecreatefrom' . $image_extension, $image_fullpath);
$image = $this->create_transparent_image($sizes->width, $sizes->height, $tmpImage);
if (!$return_data) {
$this->image_data = $image;
$return = true;
} else {
$return = $image;
}
$this->debug('', "<strong>Loaded</strong> <code>" . $image_fullpath . "</code> with size of " . $sizes->width . "x" . $sizes->height);
} else {
throw new \RuntimeException("Function imagecreatefrom" . $image_extension . "() does not exist (Missing GD?)");
}
return $return_data ? $return : $this;
}
public function fill_watermark()
{
$image = $this->editor->get_image();
$size = $this->editor->get_size();
list($mask_width, $mask_height, $mask_type, $mask_attr) = getimagesize($this->args['mask']);
switch ($mask_type) {
case 1:
$mask = imagecreatefromgif($this->args['mask']);
break;
case 2:
$mask = imagecreatefromjpeg($this->args['mask']);
break;
case 3:
$mask = imagecreatefrompng($this->args['mask']);
break;
}
imagealphablending($image, true);
if (strpos($this->args['position'], 'left') !== false) {
$left = $this->args['padding'];
} else {
$left = $size['width'] - $mask_width - $this->args['padding'];
}
if (strpos($this->args['position'], 'top') !== false) {
$top = $this->args['padding'];
} else {
$top = $size['height'] - $mask_height - $this->args['padding'];
}
imagecopy($image, $mask, $left, $top, 0, 0, $mask_width, $mask_height);
$this->editor->update_image($image);
imagedestroy($mask);
}
/**
* Displays the image
*
* @param integer $quality image render quality 1-100, default 100
* @access public
* @return void
*/
function render($quality = 100)
{
header('Content-type: image/' . $this->type);
@imageinterlace($this->handle, 1);
@imagegif($this->handle, NULL, $quality);
@imagedestroy($this->handle);
}
function thumb($filename, $destination = null, $dst_w = null, $dst_h = null, $isReservedSource = false, $scale = 0.5)
{
list($src_w, $src_h, $imagetype) = getimagesize($filename);
if (is_null($dst_w) || is_null($dst_h)) {
$dst_w = ceil($src_w * $scale);
$dst_h = ceil($src_h * $scale);
}
$mime = image_type_to_mime_type($imagetype);
$createFun = str_replace("/", "createfrom", $mime);
$outFun = str_replace("/", null, $mime);
$src_image = $createFun($filename);
$dst_image = imagecreatetruecolor($dst_w, $dst_h);
imagecopyresampled($dst_image, $src_image, 0, 0, 0, 0, $dst_w, $dst_h, $src_w, $src_h);
//image_50/sdfsdkfjkelwkerjle.jpg
if ($destination && !file_exists(dirname($destination))) {
mkdir(dirname($destination), 0777, true);
}
$dstFilename = $destination == null ? getUniName() . "." . getExt($filename) : $destination;
$outFun($dst_image, $dstFilename);
imagedestroy($src_image);
imagedestroy($dst_image);
if (!$isReservedSource) {
unlink($filename);
}
return $dstFilename;
}
public function index()
{
$code = substr(sha1(mt_rand()), 17, 6);
$this->session->set_userdata('captcha_code', $code);
$width = '120';
$height = '40';
$font = APPPATH . 'modules/contact/assets/fonts/monofont.ttf';
$font_size = $height * 0.75;
$image = @imagecreate($width, $height) or die('Cannot initialize new GD image stream');
/* set the colours */
$background_color = imagecolorallocate($image, 255, 255, 255);
$text_color = imagecolorallocate($image, 20, 40, 100);
$noise_color = imagecolorallocate($image, 100, 120, 180);
/* generate random dots in background */
for ($i = 0; $i < $width * $height / 3; $i++) {
imagefilledellipse($image, mt_rand(0, $width), mt_rand(0, $height), 1, 1, $noise_color);
}
/* generate random lines in background */
for ($i = 0; $i < $width * $height / 150; $i++) {
imageline($image, mt_rand(0, $width), mt_rand(0, $height), mt_rand(0, $width), mt_rand(0, $height), $noise_color);
}
/* create textbox and add text */
$textbox = imagettfbbox($font_size, 0, $font, $code) or die('Error in imagettfbbox function');
$x = ($width - $textbox[4]) / 2;
$y = ($height - $textbox[5]) / 2;
imagettftext($image, $font_size, 0, $x, $y, $text_color, $font, $code) or die('Error in imagettftext function');
/* output captcha image to browser */
header('Content-Type: image/jpeg');
imagejpeg($image);
imagedestroy($image);
}
function getCode($num, $w, $h)
{
// 去掉了 0 1 O l 等
$str = "23456789abcdefghijkmnpqrstuvwxyz";
$code = '';
for ($i = 0; $i < $num; $i++) {
$code .= $str[mt_rand(0, strlen($str) - 1)];
}
//将生成的验证码写入session，备验证页面使用
$_SESSION["my_checkcode"] = $code;
//创建图片，定义颜色值
Header("Content-type: image/PNG");
$im = imagecreate($w, $h);
$black = imagecolorallocate($im, mt_rand(0, 200), mt_rand(0, 120), mt_rand(0, 120));
$gray = imagecolorallocate($im, 118, 151, 199);
$bgcolor = imagecolorallocate($im, 235, 236, 237);
//画背景
imagefilledrectangle($im, 0, 0, $w, $h, $bgcolor);
//画边框
imagerectangle($im, 0, 0, $w - 1, $h - 1, $gray);
//imagefill($im, 0, 0, $bgcolor);
//在画布上随机生成大量点，起干扰作用;
for ($i = 0; $i < 80; $i++) {
imagesetpixel($im, rand(0, $w), rand(0, $h), $black);
}
//将字符随机显示在画布上,字符的水平间距和位置都按一定波动范围随机生成
$strx = rand(5, 10);
for ($i = 0; $i < $num; $i++) {
$strpos = rand(1, 6);
imagestring($im, 20, $strx, $strpos, substr($code, $i, 1), $black);
$strx += $w / 5;
}
imagepng($im);
imagedestroy($im);
}
function hacknrollify($picfilename)
{
$logofilename = "logo.png";
$logoPicPath = "logopics/" . $logofilename;
$originalPicPath = "originalpics/" . $picfilename;
$editedfilename = "hnr_" . $picfilename;
$editedPicPath = "editedpics/" . $editedfilename;
// read the original image from file
$profilepic = imagecreatefromjpeg($originalPicPath);
$profilepicWidth = imagesx($profilepic);
$profilepicHeight = imagesy($profilepic);
// create the black image overlay
$blackoverlay = imagecreate($profilepicWidth, $profilepicHeight);
imagecolorallocate($blackoverlay, 0, 0, 0);
// then merge the black and profilepic
imagecopymerge($profilepic, $blackoverlay, 0, 0, 0, 0, $profilepicWidth, $profilepicHeight, 50);
imagedestroy($blackoverlay);
// merge the resized logo
$logo = resizeImage($logoPicPath, $profilepicWidth - 80, 999999);
imageAlphaBlending($logo, false);
imageSaveAlpha($logo, true);
$logoWidth = imagesx($logo);
$logoHeight = imagesy($logo);
$verticalOffset = $profilepicHeight / 2 - $logoHeight / 2;
$horizontalOffset = 40;
imagecopyresampled($profilepic, $logo, $horizontalOffset, $verticalOffset, 0, 0, $logoWidth, $logoHeight, $logoWidth, $logoHeight);
$mergeSuccess = imagejpeg($profilepic, $editedPicPath);
if (!$mergeSuccess) {
echo "Image merge failed!";
}
imagedestroy($profilepic);
imagedestroy($logo);
return $editedPicPath;
}
function saveinfo()
{
$juser =& JFactory::getUser();
if ($juser->guest) {
$error = 'Bạn phải đăng nhập để thực hiện chức năng này';
$this->setError($error);
return false;
}
$post = JRequest::get('post');
$data = array();
$data['user_id'] = $juser->id;
$data['couple_name'] = $post['couple_name'];
$data['address'] = $post['address'];
$data['country'] = $post['country'];
if (isset($_FILES['avatar']) && $_FILES['avatar']['error'] == 0) {
require_once JPATH_COMPONENT_ADMINISTRATOR . DS . 'helpers' . DS . 'thumb.php';
$p = manThumb::resize($_FILES['avatar']['tmp_name'], 96, 96);
$name = 'avatar_' . $juser->id . '.jpg';
$file = JPATH_ROOT . DS . 'images' . DS . 'wedding' . DS . 'avatar' . DS . $name;
imagejpeg($p, $file, 90);
imagedestroy($p);
$data['avatar'] = 'images/wedding/avatar/' . $name;
}
$row =& $this->getTable('users');
if (!$row->bind($data)) {
$this->setError($this->_db->getErrorMsg());
return false;
}
if (!$row->store()) {
$this->setError($this->_db->getErrorMsg());
return false;
}
return true;
}
function resizer($image)
{
$name = md5(sha1(date('d-m-y H:i:s') . $image['tmp_name']));
$type = $image['type'];
switch ($type) {
case "image/jpeg":
$img = imagecreatefromjpeg($image['tmp_name']);
break;
case "image/png":
$img = imagecreatefrompng($image['tmp_name']);
break;
}
$x = imagesx($img);
$y = imagesy($img);
$height = 150 * $y / $x;
$new = imagecreatetruecolor(150, $height);
imagecopyresampled($new, $img, 0, 0, 0, 0, 150, $height, $x, $y);
switch ($type) {
case "image/jpeg":
$local = "../assets/img/crudpartners/{$name}" . ".jpg";
imagejpeg($new, $local);
break;
case "image/png":
$local = "../assets/img/crudpartners/{$name}" . ".png";
imagejpeg($new, $local);
break;
}
imagedestroy($img);
imagedestroy($new);
return $local;
}
function upload($tmp, $name, $nome, $larguraP, $pasta)
{
$ext = strtolower(end(explode('.', $name)));
if ($ext == 'jpg') {
$img = imagecreatefromjpeg($tmp);
} elseif ($ext == 'gif') {
$img = imagecreatefromgif($tmp);
} else {
$img = imagecreatefrompng($tmp);
}
$x = imagesx($img);
$y = imagesy($img);
$largura = $x > $larguraP ? $larguraP : $x;
$altura = $largura * $y / $x;
if ($altura > $larguraP) {
$altura = $larguraP;
$largura = $altura * $x / $y;
}
$nova = imagecreatetruecolor($largura, $altura);
imagecopyresampled($nova, $img, 0, 0, 0, 0, $largura, $altura, $x, $y);
imagejpeg($nova, "{$pasta}/{$nome}");
imagedestroy($img);
imagedestroy($nova);
return $nome;
}
public function createImageKey($user, $dblink)
{
if ($stm = $dblink->prepare("SELECT 2fa_imgname FROM " . TABLE_USERS . " WHERE email = ?")) {
$stm->execute(array($user));
$row = $stm->fetch();
$stm = NULL;
$file = 'uploads/2fa/' . $row['2fa_imgname'];
}
$im = new Image();
$imageclean = $im->loadLocalFile($file);
$imagekey = $im->embedStegoKey($imageclean);
$stegoKey = $im->stegoKey;
$hash = password_hash($stegoKey, PASSWORD_DEFAULT);
if ($stm = $dblink->prepare("UPDATE " . TABLE_USERS . " SET 2fa_hash = ? WHERE email = ?")) {
$stm->execute(array($hash, $user));
$stm = NULL;
}
if (ob_get_level()) {
ob_end_clean();
}
header('Content-Description: File Transfer');
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename=KeyImage.png');
header('Content-Transfer-Encoding: binary');
header('Expires: 0');
header('Cache-Control: must-revalidate');
header('Pragma: public');
//header('Content-Length: ' . filesize($file));
$ok = imagepng($imagekey);
//, NULL, 9
imagedestroy($imagekey);
return $ok;
}
function embroidery2image($embroidery, $scale_post = 1, $scale_pre = false)
{
// Create image
$im = imagecreatetruecolor(ceil($embroidery->imageWidth * $scale_post), ceil($embroidery->imageHeight * $scale_post));
imagesavealpha($im, true);
imagealphablending($im, false);
$color = imagecolorallocatealpha($im, 255, 255, 255, 127);
imagefill($im, 0, 0, $color);
// Draw stitches
foreach ($embroidery->blocks as $block) {
$color = imagecolorallocate($im, $block->color->r, $block->color->g, $block->color->b);
$x = false;
foreach ($block->stitches as $stitch) {
if ($x !== false) {
imageline($im, ($x - $embroidery->min->x) * $scale_post, ($y - $embroidery->min->y) * $scale_post, ($stitch->x - $embroidery->min->x) * $scale_post, ($stitch->y - $embroidery->min->y) * $scale_post, $color);
}
$x = $stitch->x;
$y = $stitch->y;
}
}
// Scale finished image
if ($scale_pre) {
$im2 = imagecreatetruecolor($embroidery->imageWidth * $scale_post * $scale_pre, $embroidery->imageHeight * $scale_post * $scale_pre);
imagesavealpha($im2, true);
imagealphablending($im2, false);
imagecopyresized($im2, $im, 0, 0, 0, 0, $embroidery->imageWidth * $scale_post * $scale_pre, $embroidery->imageHeight * $scale_post * $scale_pre, $embroidery->imageWidth * $scale_post, $embroidery->imageHeight * $scale_post);
imagedestroy($im);
$im = $im2;
}
return $im;
}
private static function __image()
{
self::__background();
self::__adulterate();
self::__font();
header("Expires: 0" . PHP_EOL);
header("Cache-Control: no-cache" . PHP_EOL);
header("Pragma: no-cache" . PHP_EOL);
if (function_exists('imagejpeg')) {
header('Content-type:image/jpeg' . PHP_EOL);
$void = imagejpeg(self::$im);
} else {
if (function_exists('imagepng')) {
header('Content-type:image/png' . PHP_EOL);
$void = imagepng(self::$im);
} else {
if (function_exists('imagegif')) {
header('Content-type:image/gif' . PHP_EOL);
$void = imagegif(self::$im);
} else {
return false;
}
}
}
imagedestroy(self::$im);
return $void;
}
function mkthumb($img_src, $img_width = "100", $img_height = "100", $folder_scr = "include/files", $des_src = "include/files")
{
// Größe und Typ ermitteln
list($src_width, $src_height, $src_typ) = getimagesize($folder_scr . "/" . $img_src);
if (!$src_typ) {
return false;
}
// calculate new size
if ($src_width >= $src_height) {
$new_image_height = $src_height / $src_width * $img_width;
$new_image_width = $img_width;
if ($new_image_height > $img_height) {
$new_image_width = $new_image_width / $new_image_height * $img_height;
$new_image_height = $img_height;
}
} else {
$new_image_width = $src_width / $src_height * $img_height;
$new_image_height = $img_height;
if ($new_image_width > $img_width) {
$new_image_height = $new_image_height / $new_image_width * $img_width;
$new_image_width = $img_width;
}
}
// for the case that the thumbnail would be bigger then the original picture
if ($new_image_height > $src_height) {
$new_image_width = $new_image_width * $src_height / $new_image_height;
$new_image_height = $src_height;
}
if ($new_image_width > $src_width) {
$new_image_height = $new_image_height * $new_image_width / $src_width;
$new_image_width = $src_width;
}
if ($src_typ == 1) {
$image = imagecreatefromgif($folder_scr . "/" . $img_src);
$new_image = imagecreate($new_image_width, $new_image_height);
imagecopyresampled($new_image, $image, 0, 0, 0, 0, $new_image_width, $new_image_height, $src_width, $src_height);
imagegif($new_image, $des_src . "/" . $img_src . "_thumb", 100);
imagedestroy($image);
imagedestroy($new_image);
return true;
} elseif ($src_typ == 2) {
$image = imagecreatefromjpeg($folder_scr . "/" . $img_src);
$new_image = imagecreatetruecolor($new_image_width, $new_image_height);
imagecopyresampled($new_image, $image, 0, 0, 0, 0, $new_image_width, $new_image_height, $src_width, $src_height);
imagejpeg($new_image, $des_src . "/" . $img_src . "_thumb", 100);
imagedestroy($image);
imagedestroy($new_image);
return true;
} elseif ($src_typ == 3) {
$image = imagecreatefrompng($folder_scr . "/" . $img_src);
$new_image = imagecreatetruecolor($new_image_width, $new_image_height);
imagecopyresampled($new_image, $image, 0, 0, 0, 0, $new_image_width, $new_image_height, $src_width, $src_height);
imagepng($new_image, $des_src . "/" . $img_src . "_thumb");
imagedestroy($image);
imagedestroy($new_image);
return true;
} else {
return false;
}
}
function UploadImage($bukti_name)
{
//direktori gambar
$vdir_upload = "bukti/";
$vfile_upload = $vdir_upload . $bukti_name;
//Simpan gambar dalam ukuran sebenarnya
move_uploaded_file($_FILES["bukti"]["tmp_name"], $vfile_upload);
//identitas file asli
$im_src = imagecreatefromjpeg($vfile_upload);
$src_width = imageSX($im_src);
$src_height = imageSY($im_src);
//Simpan dalam versi small 110 pixel
//Set ukuran gambar hasil perubahan
$dst_width = 50;
$dst_height = $dst_width / $src_width * $src_height;
//proses perubahan ukuran
$im = imagecreatetruecolor($dst_width, $dst_height);
imagecopyresampled($im, $im_src, 0, 0, 0, 0, $dst_width, $dst_height, $src_width, $src_height);
//Simpan gambar
imagejpeg($im, $vdir_upload . "small_" . $bukti_name);
//Simpan dalam versi medium 360 pixel
//Set ukuran gambar hasil perubahan
$dst_width2 = 270;
$dst_height2 = $dst_width2 / $src_width * $src_height;
//proses perubahan ukuran
$im2 = imagecreatetruecolor($dst_width2, $dst_height2);
imagecopyresampled($im2, $im_src, 0, 0, 0, 0, $dst_width2, $dst_height2, $src_width, $src_height);
//Simpan gambar
imagejpeg($im2, $vdir_upload . "medium_" . $bukti_name);
//Hapus gambar di memori komputer
imagedestroy($im_src);
imagedestroy($im);
imagedestroy($im2);
}
function close($Media)
{
if (is_resource($Media->resources['gd'])) {
return imagedestroy($Media->resources['gd']);
}
return false;
}
function CaptchaSecurityImages($width = '120', $height = '40', $characters = '6')
{
$code = $this->generateCode($characters);
/* font size will be 75% of the image height */
$font_size = $height * 0.5;
$image = @imagecreate($width, $height) or die('Cannot initialize new GD image stream');
/* set the colours */
$background_color = imagecolorallocate($image, 20, 20, 20);
$text_color = imagecolorallocate($image, 230, 197, 89);
$noise_color = imagecolorallocate($image, 0, 0, 0);
/* generate random dots in background */
for ($i = 0; $i < $width * $height / 3; $i++) {
imagefilledellipse($image, mt_rand(0, $width), mt_rand(0, $height), 1, 1, $noise_color);
}
/* generate random lines in background */
/*for( $i=0; $i<($width*$height)/150; $i++ ) {
imageline($image, mt_rand(0,$width), mt_rand(0,$height), mt_rand(0,$width), mt_rand(0,$height), $noise_color);
}*/
/* create textbox and add text */
$textbox = imagettfbbox($font_size, 0, $this->font, $code) or die('Error in imagettfbbox function');
$x = ($width - $textbox[4]) / 2;
$y = ($height - $textbox[5]) / 2;
imagettftext($image, $font_size, 0, $x, $y, $text_color, $this->font, $code) or die('Error in imagettftext function');
/* output captcha image to browser */
header('Content-Type: image/jpeg');
imagejpeg($image);
imagedestroy($image);
$_SESSION['security_code'] = $code;
}
namespace common;
class upload
{
//从tmp中移动upload
public static function zoom(&$file, &$maxWidth = 0, &$maxHeight = 0)
{
list($width, $height, $im, $func, $ext) = self::_init($file);
if (!$im) {
\yk\log::runlog('file upload error: im not found', 'upload');
return false;
}
if ($maxWidth > 0) {
$p = max($width / $maxWidth, $height / $maxHeight);
$dstwidth = intval($width / $p);
$dstheight = intval($height / $p);
} else {
$dstwidth = $width;
$dstheight = $height;
}
$maxWidth = $dstwidth;
$maxHeight = $dstheight;
$dstim = imagecreatetruecolor($dstwidth, $dstheight);
imagealphablending($dstim, false);
//关闭混杂模式,不可缺少, PHP文档中说明: (在非混色模式下，画笔颜色连同其 alpha 通道信息一起被拷贝，替换掉目标像素。混色模式在画调色板图像时不可用。) 而且是imagesavealpha方法起作用的前置步骤.
imagesavealpha($dstim, true);
//保存 PNG 图像时保存完整的 alpha 通道信息
$transparent = imagecolorallocatealpha($dstim, 255, 255, 255, 127);
//取得一个透明的颜色, 透明度在 0-127 间
imagefill($dstim, 0, 0, $transparent);
imagecopyresampled($dstim, $im, 0, 0, 0, 0, $dstwidth, $dstheight, $width, $height);
$file = uniqid() . $ext;
/**
* Output binary image from base-64 encoded data.
*
* @deprecated 1.5.1
*
* @param string $imageData Base-64 encoded image data (via $_POST)
*/
public static function outputBinaryImage()
{
Piwik::checkUserHasSomeViewAccess();
$rawData = Piwik_Common::getRequestVar('imageData', '', 'string', $_POST);
// returns false if any illegal characters in input
$data = base64_decode($rawData);
if ($data !== false) {
// check for PNG header
if (Piwik_Common::substr($data, 0, 8) === "‰PNG\r\n\n") {
header('Content-Type: image/png');
// more robust validation (if available)
if (function_exists('imagecreatefromstring')) {
// validate image data
$imgResource = @imagecreatefromstring($data);
if ($imgResource !== false) {
// output image and clean-up
imagepng($imgResource);
imagedestroy($imgResource);
exit;
}
} else {
echo $data;
exit;
}
}
}
Piwik::setHttpStatus('400 Bad Request');
exit;
}
function background()
{
$this->im = imagecreatetruecolor($this->width, $this->height);
$backgrounds = $c = array();
if (!$this->background || !$backgrounds) {
for ($i = 0; $i < 3; $i++) {
$start[$i] = mt_rand(200, 255);
$end[$i] = mt_rand(100, 150);
$step[$i] = ($end[$i] - $start[$i]) / $this->width;
$c[$i] = $start[$i];
}
for ($i = 0; $i < $this->width; $i++) {
$color = imagecolorallocate($this->im, $c[0], $c[1], $c[2]);
imageline($this->im, $i, 0, $i, $this->height, $color);
$c[0] += $step[0];
$c[1] += $step[1];
$c[2] += $step[2];
}
$c[0] -= 20;
$c[1] -= 20;
$c[2] -= 20;
}
ob_start();
if (function_exists('imagepng')) {
imagepng($this->im);
} else {
imagejpeg($this->im, '', 100);
}
imagedestroy($this->im);
$bgcontent = ob_get_contents();
ob_end_clean();
$this->fontcolor = $c;
return $bgcontent;
}
function destroy()
{
if ($this->isValid() && !$this->handleReleased) {
imagedestroy($this->handle);
}
$this->handle = null;
}
function createthumb($originalImage, $newName, $new_w, $new_h)
{
$src_img = imagecreatefromjpeg($originalImage);
$newName .= ".jpg";
# Maintain proportions
$old_x = imageSX($src_img);
$old_y = imageSY($src_img);
if ($old_x > $old_y) {
$thumb_w = $new_w;
$thumb_h = $old_y * ($new_h / $old_x);
}
if ($old_x < $old_y) {
$thumb_w = $old_x * ($new_w / $old_y);
$thumb_h = $new_h;
}
if ($old_x == $old_y) {
$thumb_w = $new_w;
$thumb_h = $new_h;
}
# Create destination-image-resource
$dst_img = ImageCreateTrueColor($thumb_w, $thumb_h);
# Copy source-image-resource to destination-image-resource
imagecopyresampled($dst_img, $src_img, 0, 0, 0, 0, $thumb_w, $thumb_h, $old_x, $old_y);
# Create the final image from the destination-image-resource
imagejpeg($dst_img, $newName);
# Delete our image-resources
imagedestroy($dst_img);
imagedestroy($src_img);
# Show results
return $newName;
}
/**
* Displays the captcha image
*
* @access public
* @param int $key Captcha key
* @return mixed Captcha raw image data
*/
function image($key)
{
$value = Jaws_Utils::RandomText();
$result = $this->update($key, $value);
if (Jaws_Error::IsError($result)) {
$value = '';
}
$bg = dirname(__FILE__) . '/resources/simple.bg.png';
$im = imagecreatefrompng($bg);
imagecolortransparent($im, imagecolorallocate($im, 255, 255, 255));
// Write it in a random position..
$darkgray = imagecolorallocate($im, 0x10, 0x70, 0x70);
$x = 5;
$y = 20;
$text_length = strlen($value);
for ($i = 0; $i < $text_length; $i++) {
$fnt = rand(7, 10);
$y = rand(6, 10);
imagestring($im, $fnt, $x, $y, $value[$i], $darkgray);
$x = $x + rand(15, 25);
}
header("Content-Type: image/png");
ob_start();
imagepng($im);
$content = ob_get_contents();
ob_end_clean();
imagedestroy($im);
return $content;
}
function draw_bar_graph($width, $height, $data, $max_value, $filename)
{
// Create the empty graph image
$img = imagecreatetruecolor($width, $height);
// Set a white background with black text and gray graphics
$bg_color = imagecolorallocate($img, 255, 255, 255);
// white
$text_color = imagecolorallocate($img, 255, 255, 255);
// white
$bar_color = imagecolorallocate($img, 0, 0, 0);
// black
$border_color = imagecolorallocate($img, 192, 192, 192);
// light gray
// Fill the background
imagefilledrectangle($img, 0, 0, $width, $height, $bg_color);
// Draw the bars
$bar_width = $width / (count($data) * 2 + 1);
for ($i = 0; $i < count($data); $i++) {
imagefilledrectangle($img, $i * $bar_width * 2 + $bar_width, $height, $i * $bar_width * 2 + $bar_width * 2, $height - $height / $max_value * $data[$i][1], $bar_color);
imagestringup($img, 5, $i * $bar_width * 2 + $bar_width, $height - 5, $data[$i][0], $text_color);
}
// Draw a rectangle around the whole thing
imagerectangle($img, 0, 0, $width - 1, $height - 1, $border_color);
// Draw the range up the left side of the graph
for ($i = 1; $i <= $max_value; $i++) {
imagestring($img, 5, 0, $height - $i * ($height / $max_value), $i, $bar_color);
}
// Write the graph image to a file
imagepng($img, $filename, 5);
imagedestroy($img);
}
public function save()
{
$maxHeight = 0;
$width = 0;
foreach ($this->_segmentsArray as $segment) {
$maxHeight = max($maxHeight, $segment->height);
$width += $segment->width;
}
// create our canvas
$img = imagecreatetruecolor($width, $maxHeight);
$background = imagecolorallocatealpha($img, 255, 255, 255, 127);
imagefill($img, 0, 0, $background);
imagealphablending($img, false);
imagesavealpha($img, true);
// start placing our images on a single x axis
$xPos = 0;
foreach ($this->_segmentsArray as $segment) {
$tmp = imagecreatefromjpeg($segment->pathToImage);
imagecopy($img, $tmp, $xPos, 0, 0, 0, $segment->width, $segment->height);
$xPos += $segment->width;
imagedestroy($tmp);
}
// create our final output image.
imagepng($img, $this->_saveToPath);
}
function output()
{
$arr = $this->ret;
$bg = DATA_DIR . '/cache/vcodebg.png';
$image = imagecreatefrompng($bg);
list($w, $baseH) = getimagesize($bg);
header('Content-type: image/png');
$x = 1;
foreach ($arr as $i => $filename) {
list($w, $h) = getimagesize($filename);
$source = imagecreatefrompng($filename);
$t_id = imagecolortransparent($source);
$rotate = imagerotate($source, rand(-20, 20), $t_id);
$w2 = $w * $baseH / $h;
imagecopyresized($image, $rotate, $x, 0, 0, 0, $w2, $baseH, $w, $h);
imagedestroy($source);
imagedestroy($rotate);
$x += $w2;
}
$x += 1;
$dst = imagecreatetruecolor($x, $baseH);
imagecopyresampled($dst, $image, 0, 0, 0, 0, $x, $baseH, $x, $baseH);
imagepng($dst);
imagedestroy($image);
imagedestroy($dst);
exit;
}
function createthumb($originalImage, $new_w, $new_h)
{
$src_img = imagecreatefromjpeg("uploads/" . $originalImage);
# Add the _t to our image name
list($imageName, $extension) = explode(".", $originalImage);
$newName = $imageName . "_t." . $extension;
# Maintain proportions
$old_x = imageSX($src_img);
$old_y = imageSY($src_img);
if ($old_x > $old_y) {
$thumb_w = $new_w;
$thumb_h = $old_y * ($new_h / $old_x);
}
if ($old_x < $old_y) {
$thumb_w = $old_x * ($new_w / $old_y);
$thumb_h = $new_h;
}
if ($old_x == $old_y) {
$thumb_w = $new_w;
$thumb_h = $new_h;
}
# Create destination-image-resource
$dst_img = ImageCreateTrueColor($thumb_w, $thumb_h);
# Copy source-image-resource to destination-image-resource
imagecopyresampled($dst_img, $src_img, 0, 0, 0, 0, $thumb_w, $thumb_h, $old_x, $old_y);
# Create the final image from the destination-image-resource
imagejpeg($dst_img, "uploads/" . $newName);
# Delete our image-resources
imagedestroy($dst_img);
imagedestroy($src_img);
# Show results
return $newName;
}