function ThumbnailImage($path, $maxdimension = 100)
{
$this->maxdimension = $maxdimension;
//check path
is_file($path) or die("File: {$path} doesn't exist.");
//check type
$extension = substr($path, strpos($path, ".") + 1);
$extension = strtolower($extension);
in_array($extension, $this->types) or die("Incorrect file type.");
$this->fileextension = $extension;
$this->setMimeType($extension);
//get dimensions by creating imageproperties
$this->imageproperties = GetImageSize($path);
//create image
if ($extension == "jpeg" || $extension == "jpg") {
$this->image = imagecreatefromJPEG($path);
} elseif ($extension == "gif") {
$this->image = imagecreatefromGIF($path);
} elseif ($extension == "png") {
$this->image = imagecreatefromPNG($path);
} else {
die("Couldn't create image.");
}
$this->createThumb();
}
function tile_img($file, $xorig, $yorig, $width, $height, $mode)
{
$size = getimagesize($file);
$input_format = $size[2];
switch ($input_format) {
case 1:
$im = @imagecreatefromGIF($file);
if (!$im) {
$this->PrintError("tile_img:() Unable to open {$file} as a GIF.");
return FALSE;
}
break;
case 2:
$im = @imagecreatefromJPEG($file);
if (!$im) {
$this->PrintError("tile_img(): Unable to open {$file} as a JPG.");
return FALSE;
}
break;
case 3:
$im = @imagecreatefromPNG($file);
if (!$im) {
$this->PrintError("tile_img(): Unable to open {$file} as a PNG.");
return FALSE;
}
break;
default:
$this->PrintError('tile_img(): Please select a gif, jpg, or png image.');
return FALSE;
break;
}
if ($mode == 'scale') {
imagecopyresized($this->img, $im, $xorig, $yorig, 0, 0, $width, $height, $size[0], $size[1]);
return TRUE;
} else {
if ($mode == 'centeredtile') {
$x0 = -floor($size[0] / 2);
// Make the tile look better
$y0 = -floor($size[1] / 2);
} else {
if ($mode = 'tile') {
$x0 = 0;
$y0 = 0;
}
}
}
// Actually draw the tile
// But first on a temporal image.
$tmp = ImageCreate($width, $height);
if (!$tmp) {
$this->PrintError('tile_img(): Could not create image resource.');
}
for ($x = $x0; $x < $width; $x += $size[0]) {
for ($y = $y0; $y < $height; $y += $size[1]) {
imagecopy($tmp, $im, $x, $y, 0, 0, $size[0], $size[1]);
}
}
// Copy the temporal image onto the final one.
imagecopy($this->img, $tmp, $xorig, $yorig, 0, 0, $width, $height);
// Free resources
imagedestroy($tmp);
imagedestroy($im);
return TRUE;
}
function imager_makeGray($img_path, &$temp = false)
{
$dirs = infra_dirs();
$type = imager_type($img_path);
$name = md5($img_path);
$temp = tmpfile();
fwrite($temp, '');
$meta = stream_get_meta_data($temp);
$output_path = $meta['uri'];
$type_img = exif_imagetype($img_path);
$gd = gd_info();
if ($type_img == 3 and $gd['PNG Support'] == 1) {
$img_png = imagecreatefromPNG($img_path);
imagesavealpha($img_png, true);
if ($img_png and imagefilter($img_png, IMG_FILTER_GRAYSCALE)) {
imagepng($img_png, $output_path);
}
imagedestroy($img_png);
} elseif ($type_img == 2) {
$img = imagecreatefromJPEG($img_path);
if ($img and imagefilter($img, IMG_FILTER_GRAYSCALE)) {
imagejpeg($img, $output_path);
}
imagedestroy($img);
/*
if(!$color_total = imagecolorstotal($img_jpg)) {
$color_total = 256;
}
imagetruecolortopalette( $img_jpg, FALSE, $color_total );
for( $c = 0; $c < $color_total; $c++ ) {
$col = imagecolorsforindex( $img_jpg, $c );
$i = ( $col['red']+$col['green']+$col['blue'] )/3;
imagecolorset( $img_jpg, $c, $i, $i, $i );
}
@unlink( $output_path );
imagejpeg( $img_jpg, $output_path );
imagedestroy( $img_jpg );*/
} elseif ($type_img == 1) {
$img = imagecreatefromGIF($img_path);
if ($img and imagefilter($img, IMG_FILTER_GRAYSCALE)) {
imagegif($img, $output_path);
}
imagedestroy($img);
/*if(!$color_total = imagecolorstotal( $img_gif )) {
$color_total = 256;
}
imagetruecolortopalette( $img_gif, FALSE, $color_total );
for( $c = 0; $c < $color_total; $c++ ) {
$col = imagecolorsforindex( $img_gif, $c );
$i = ( $col['red']+$col['green']+$col['blue'] )/3;
imagecolorset( $img_gif, $c, $i, $i, $i );
}
@unlink( $output_path );
imagegif( $img_gif, $output_path );
imagedestroy( $img_gif );*/
} else {
return $img_path;
}
return $output_path;
}
function thumb($source_dir, $thumb_dir, $width = 85, $height = 85, $op = false)
{
$source_dir = Import::gz_iconv()->ec_iconv('UTF8', 'GB2312', $source_dir);
$thumb_dir = Import::gz_iconv()->ec_iconv('UTF8', 'GB2312', $thumb_dir);
$this->checkDir($thumb_dir);
if (!file_exists($source_dir) && is_dir(dirname($source_dir))) {
$this->seterror("不能生成缩略图，源文件不存在！<br />");
return false;
}
$DS = $this->DS;
$data = getimagesize($source_dir);
switch ($data[2]) {
case 1:
$im = @imagecreatefromgif($source_dir);
break;
case 2:
$im = @imagecreatefromjpeg($source_dir);
break;
case 3:
$im = @imagecreatefrompng($source_dir);
break;
}
$srcW = imagesx($im);
$this->setwidth($srcW);
$srcH = imagesy($im);
$this->setheight($srcH);
/*if($srcW>$srcH){ //宽大于高
if($srcW<$width){
$width = $srcW;
$height = $srcH*($width/$srcW);
}
}else{ //高大于宽
if($srcH<$height){
$height = $srcH;
$width = $srcW*($height/$srcH);
}
}
$tw = $width;
$th = $height;
$ni=imagecreatetruecolor($width,$height);
//用白色填充
sscanf('FFFFFF', "%2x%2x%2x", $red, $green, $blue);
$clr = imagecolorallocate($ni, $red, $green, $blue);
imagefilledrectangle($ni, 0, 0, $width, $height, $clr);
$mult = $width/$srcW;
if($height/$srcH<$mult) {
$mult = $height/$srcH;
}
$width = $srcW*$mult;
$height =$srcH*$mult;
$dst_x = ($tw - $width) / 2;
$dst_y = ($th - $height) / 2;
// imagecopyresized($ni,$im,0,0,0,0,$width,$height,$srcW,$srcH); //生成一般缩略图
imagecopyresampled($ni,$im, $dst_x, $dst_y, 0, 0,$width,$height,$srcW,$srcH); //生成高清缩略图 必须支持GD2
// imagecopyresampled($ni,$im, 0, 0, 0, 0,$width,$height,$srcW,$srcH); //生成高清缩略图
$cr = imagejpeg($ni,$thumb_dir);
chmod($thumb_dir, 0777);
*/
$mult = $width / $srcW;
if ($height / $srcH < $mult) {
$mult = $height / $srcH;
}
$width = $srcW * $mult;
$height = $srcH * $mult;
/*
$dst_x = ($tw - $width) / 2;
$dst_y = ($th - $height) / 2;
*/
$ni = imagecreatetruecolor($width, $height);
sscanf('FFFFFF', "%2x%2x%2x", $red, $green, $blue);
$clr = imagecolorallocate($ni, $red, $green, $blue);
imagefilledrectangle($ni, 0, 0, $width, $height, $clr);
// imagecopyresized($ni,$im,0,0,0,0,$width,$height,$srcW,$srcH); //生成一般缩略图
//imagecopyresampled($ni,$im, $dst_x, $dst_y, 0, 0,$width,$height,$srcW,$srcH); //生成高清缩略图 必须支持GD2
imagecopyresampled($ni, $im, 0, 0, 0, 0, $width, $height, $srcW, $srcH);
//生成高清缩略图
//imagecolorallocatealpha();
$cr = imagejpeg($ni, $thumb_dir);
chmod($thumb_dir, 0777);
if (!$cr) {
$this->seterror("缩略图生成失败 <br />");
return false;
}
//是否添加水印
if ($this->is_upload) {
if ($this->watermark == 1) {
$iinfo = getimagesize($thumb_dir);
$nimage = imagecreatetruecolor($iinfo[0], $iinfo[1]);
$white = imagecolorallocate($nimage, 255, 255, 255);
$black = imagecolorallocate($nimage, 0, 0, 0);
$red = imagecolorallocate($nimage, 255, 0, 0);
switch ($iinfo[2]) {
case 1:
$simage = imagecreatefromgif($thumb_dir);
break;
case 2:
$simage = imagecreatefromjpeg($thumb_dir);
break;
case 3:
$simage = imagecreatefrompng($thumb_dir);
break;
case 6:
$simage = imagecreatefromwbmp($thumb_dir);
break;
default:
$this->seterror("不支持的文件类 <br />型");
$this->is_upload = false;
return false;
}
imagecopy($nimage, $simage, 0, 0, 0, 0, $iinfo[0], $iinfo[1]);
switch ($this->watertype) {
case 1:
//加水印字符串
imagestring($nimage, 2, 3, $iinfo[1] - 15, $this->waterstring, $black);
break;
case 2:
$inn = getimagesize($this->waterimg);
switch ($inn[2]) {
//1:GIG 2:JPEG 3:PNG
case 1:
$in = @imagecreatefromGIF($this->waterimg);
break;
case 2:
$in = @imagecreatefromJPEG($this->waterimg);
break;
case 3:
$in = @imagecreatefromPNG($this->waterimg);
break;
}
$wh = imagecolorallocate($in, 255, 255, 255);
imagecolortransparent($in, $wh);
imagecopy($nimage, $in, rand(20, $iinfo[0] - 100), rand(20, $iinfo[1] - 100), 0, 0, $inn[0], $inn[1]);
imagedestroy($in);
break;
}
switch ($iinfo[2]) {
case 1:
imagejpeg($nimage, $thumb_dir);
break;
case 2:
imagejpeg($nimage, $thumb_dir);
break;
case 3:
imagepng($nimage, $thumb_dir);
break;
case 6:
imagewbmp($nimage, $thumb_dir);
break;
}
}
//end 水印IF
}
//end 是否符合上传IF
return true;
}
/**
* The filename must have an extension and it must be one of the following: jpg, gif, png, jpeg, or bmp.
* If a thumbnail already exists in the source files' directory, this function automatically appends an
* incremental numeric suffix.
*
* If the output filename already exists on disk, this function will revert to auto-creating a thumbnail filename.
*
* @param string $filename The filename to process
* @param string $outputFilename The name of the file to write to
* @param string $outputDirectory The name of the directory that holds our outputfile
* @param integer $width The width in pixels of the created thumbnail
* @param integer $height The height in pixels of the created thumbnail
* @param boolean $max If set to true then the image aspect ratio is preserved
* with the max length of either width or height being {@link $width} or {@link $height}
* @param boolean $crop If set to true, the image will be cropped to the dimensions specified.
* If set to false, the image will be resized.
*
* @return string the name of the file where the thumbnail can be found
* @throws ThumbnailsException If any of the parameters are invalid.
*
* @see generateThumbnail(...)
*/
protected function generateThumbnail($filename, $outputFilename, $outputDirectory, $width = 0, $height = 0, $max = false, $crop = false, $ext = null, $quality = null)
{
if (!is_file($filename)) {
throw new ThumbnailsException("Source file does not exist '" . $filename . "'");
}
$path = pathinfo($filename);
if (empty($path['extension'])) {
throw new ThumbnailsException("Source file does not have an extension '" . $filename . "'");
}
$originalExt = strtolower(trim($path['extension']));
if (empty($ext)) {
$ext = $originalExt;
}
if (!in_array($ext, $this->supportedExtensions)) {
throw new ThumbnailsException("Thumbnail file extension [{$ext}] is not supported");
}
if ($outputDirectory != null && !is_dir($outputDirectory)) {
throw new ThumbnailsException("Output directory does not exist or is not a valid directory '{$outputDirectory}'");
}
//parameter validation
if ($width === 0 && $height === 0) {
throw new ThumbnailsException("Width and/or height must be specified");
}
if (!is_int($width)) {
throw new ThumbnailsException("Width [{$width}] is not a valid integer");
}
if (!is_int($height)) {
throw new ThumbnailsException("Height [{$height}] is not a valid integer");
}
if ($width < 0) {
throw new ThumbnailsException("Width cannot be negative");
}
if ($height < 0) {
throw new ThumbnailsException("Height cannot be negative");
}
if ($max === true && ($width === 0 || $height === 0)) {
throw new ThumbnailsException("If max is true then width and height must be positive");
}
if ($crop === true && ($width === 0 || $height === 0 || $max === true)) {
throw new ThumbnailsException("If crop is true then width and height must be positive and max must be false");
}
if ($outputDirectory == null) {
$outputDirectory = $path['dirname'];
} else {
$outputDirectory = rtrim($outputDirectory, '/');
}
//check for existing thumbnail in same directory, increment filename
$outfile = $outputFilename == null ? "{$path['filename']}{$this->autoNameSuffix}.{$ext}" : $outputFilename;
$inc = 1;
while (is_file("{$outputDirectory}/{$outfile}")) {
$outfile = "{$path['filename']}{$this->autoNameSuffix}-{$inc}.{$ext}";
$inc++;
}
//list($origwidth, $origheight) = getimagesize($filename);
//build ImageMagick operation
if ($this->convertMode == 'exec_imagick') {
if ($max === true) {
$op = "-resize {$width}x{$height}\\>";
} else {
if ($crop === true) {
if ($this->imageMagickCompatMode == false) {
// As of IM v6.3.8-3 the special resize option flag '^' was added
// to make cutting the image to fit easier.
$op = "-resize {$width}x{$height}\\>^ -gravity {$this->cropGravity} -crop {$width}x{$height}+0+0 +repage";
} else {
// Complex trickiness to perform the cut to fit resize
// Calculate the thumbnail aspect ratio.
// > 1 is a wide thumb
// < 1 is a tall thumb
// 1 is a square thumb
$thumb_aspect_ratio = $width / $height;
// Get the dimensions of the image
$dimensions = getimagesize($filename);
$image_aspect_ratio = $dimensions[0] / $dimensions[1];
// Definitions:
// width-crop = Resize the image to the full width of the thumbnail and trim the top and bottom
// height-crop = Resize the image to the full height of the thumbnail and trip the sides
// Behavior:
// If image_aspect_ratio < thumb_aspect_ratio perform a width-crop
// If image_aspect_ratio >= thumb_aspect_ratio perform a height-crop
if ($image_aspect_ratio < $thumb_aspect_ratio) {
$op = "-resize {$width}x\\> -gravity {$this->cropGravity} -crop {$width}x{$height}+0+0 +repage";
} else {
$op = "-resize x{$height}\\> -gravity {$this->cropGravity} -crop {$width}x{$height}+0+0 +repage";
}
}
} else {
if ($height === 0) {
$op = "-resize {$width}x\\>";
} else {
if ($width === 0) {
$op = "-resize x{$height}\\>";
} else {
$op = "-resize {$width}x{$height}!\\>";
}
}
}
}
$qualityArg = $quality ? '-quality ' . escapeshellarg($quality) : ($qualityArg = '');
$outPath = escapeshellarg("{$outputDirectory}/{$outfile}");
//full ImageMagick command; redirect STDERR to STDOUT
$filename = escapeshellarg($filename);
$cmd = "{$this->pathToImageMagickConvert} {$filename} {$op} {$qualityArg} {$outPath} 2>&1";
$retval = 1;
$output = array();
$this->Logger->debug("Excecuting [{$cmd}]");
exec($cmd, $output, $retval);
if ($retval > 0) {
throw new ThumbnailsException("Generation failed '" . $cmd . "\n" . implode("\n", $output) . "'");
}
} elseif ($this->convertMode == 'pecl_imagick') {
$image = new Imagick($filename);
if ($max == true) {
$image->scaleImage($width, $height, true);
} elseif ($crop === true) {
// Because Imagick::cropThumbnailImage() doesn't support different gravities,
// we need to expand the functionality out here. PITA!
if ($this->cropGravity == 'center') {
$image->cropThumbnailImage($width, $height);
} else {
// Resize full image by default so the smallest edge is
// the max width/height
if ($image->getImageWidth() > $image->getImageHeight()) {
$image->scaleImage(0, $height);
} else {
$image->scaleImage($width, 0);
}
// Then crop out the needed section.
$image_width = $image->getImageWidth();
$image_height = $image->getImageHeight();
switch (strtolower($this->cropGravity)) {
case 'northwest':
$x = $image_width - $width;
$y = 0;
break;
case 'north':
$x = $image_width / 2 - $width / 2;
$y = 0;
break;
case 'northeast':
$x = 0;
$y = 0;
break;
case 'west':
$x = 0;
$y = $image_height / 2 - $height / 2;
break;
case 'east':
$x = $image_width - $width;
$y = $image_height / 2 - $height / 2;
break;
case 'southwest':
$x = 0;
$y = $image_height - $height;
break;
case 'south':
$x = $image_width / 2 - $width / 2;
$y = $image_height - $height;
break;
case 'southeast':
$x = $image_width - $width;
$y = $image_height - $height;
break;
default:
throw new ThumbnailsException("Unsupported crop gravity: {$this->cropGravity}");
}
$x = floor($x);
$y = floor($y);
$image->cropImage($width, $height, $x, $y);
}
} elseif ($height === 0) {
$image->scaleImage($width, $height);
} elseif ($width === 0) {
$image->scaleImage($width, $height);
} else {
$image->resizeImage($width, $height, Imagick::FILTER_LANCZOS, 1);
}
if ($quality) {
$image->setImageCompressionQuality($quality);
}
// Imagick will infer the file format from the filename extension
$image->writeImage("{$outputDirectory}/{$outfile}");
$image->clear();
$image->destroy();
} elseif ($this->convertMode == 'gd') {
$origImage = null;
switch ($originalExt) {
case 'jpg':
case 'jpeg':
$origImage = imagecreatefromJPEG($filename);
break;
case 'gif':
$origImage = imagecreatefromGIF($filename);
break;
case 'png':
$origImage = imagecreatefromPNG($filename);
break;
case 'bmp':
$origImage = imagecreatefromWBMP($filename);
break;
default:
throw new ThumbnailsException('GD does not know how to handle .' . $originalExt . ' files.');
}
if (function_exists('imageantialias')) {
imageantialias($origImage, true);
}
$image_attr = getimagesize($filename);
$image_width = $image_attr[0];
$image_height = $image_attr[1];
$dst_x = 0;
$dst_y = 0;
$src_x = null;
$src_y = null;
$dst_w = null;
$dst_h = null;
$src_w = null;
$src_h = null;
if ($max === true) {
// resize to dimensions, preserving aspect ratio
$src_x = 0;
$src_y = 0;
$src_w = $image_width;
$src_h = $image_height;
if ($image_width > $image_height) {
$dst_w = $width;
$dst_h = (int) floor($image_height * ($width / $image_width));
} else {
$dst_h = $height;
$dst_w = (int) floor($image_width * ($height / $image_height));
}
} else {
if ($crop === true) {
// crop the image with cropGravity
$dst_w = $width;
$dst_h = $height;
// By default, resize the whole image
$src_w = $image_attr[0];
$src_h = $image_attr[1];
$thumb_aspect_ratio = $width / $height;
$image_aspect_ratio = $image_attr[0] / $image_attr[1];
if ($image_aspect_ratio < $thumb_aspect_ratio) {
// width-crop
$src_w = $image_attr[0];
// original-width
$resize_ratio = $image_attr[0] / $width;
// original-width / thumbnail-width
$src_h = floor($height * $resize_ratio);
// thumbnail-height * original-width / thumbnail-width
} else {
// height-crop
$src_h = $image_attr[1];
// original-height
$resize_ratio = $image_attr[1] / $height;
// original-height / thumbnail-height
$src_w = floor($width * $resize_ratio);
// thumbnail-width * original-height / thumbnail-height
}
$dst_x = 0;
$dst_y = 0;
$dst_w = $width;
$dst_h = $height;
switch (strtolower($this->cropGravity)) {
case 'center':
$src_x = floor(($image_attr[0] - $src_w) / 2);
$src_y = floor(($image_attr[1] - $src_h) / 2);
break;
case 'northeast':
$src_x = 0;
$src_y = 0;
break;
case 'north':
$src_x = floor(($image_attr[0] - $src_w) / 2);
$src_y = 0;
break;
case 'south':
$src_x = floor($image_attr[0] - $image_width);
$src_y = floor($image_attr[1] - $image_height);
break;
default:
throw new ThumbnailsException("Unsupported cropGravity for GD: {$this->cropGravity}");
}
} else {
if ($height === 0) {
// resize to max width, preserving aspect ratio
$src_x = 0;
$src_y = 0;
$src_w = $image_width;
$src_h = $image_height;
$dst_w = $width;
$dst_h = $image_height * ($width / $image_width);
} else {
if ($width === 0) {
// resize to max height, preserving aspect ratio
$src_x = 0;
$src_y = 0;
$src_w = $image_width;
$src_h = $image_height;
$dst_h = $height;
$dst_w = $image_width * ($height / $image_height);
} else {
// resize, ignoring aspect ratio
$src_x = 0;
$src_y = 0;
$src_w = $image_width;
$src_h = $image_height;
$dst_w = $width;
$dst_h = $height;
}
}
}
}
$newImage = imagecreateTrueColor($dst_w, $dst_h);
//preserve transparency
$transindex = -1;
if ($ext == 'gif') {
imagealphablending($newImage, false);
$transindex = imagecolortransparent($origImage);
if ($transindex >= 0) {
$transcol = imagecolorsforindex($origImage, $transindex);
$transindex = imagecolorallocatealpha($newImage, $transcol['red'], $transcol['green'], $transcol['blue'], 127);
imagefill($newImage, 0, 0, $transindex);
}
}
@imagecopyResampled($newImage, $origImage, $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h);
//preserve transparency
if ($ext == 'gif') {
if ($transindex >= 0) {
imagecolortransparent($newImage, $transindex);
for ($y = 0; $y < $dst_h; ++$y) {
for ($x = 0; $x < $dst_w; ++$x) {
if ((imagecolorat($newImage, $x, $y) >> 24 & 0x7f) >= 100) {
imagesetpixel($newImage, $x, $y, $transindex);
}
}
}
imagetruecolortopalette($newImage, true, 255);
imagesavealpha($newImage, false);
}
}
// echo "<pre>"; var_dump($dst_h); die("</pre>");
$outfilepath = "{$outputDirectory}/{$outfile}";
switch ($ext) {
case 'jpg':
case 'jpeg':
imageJPEG($newImage, $outfilepath, $quality);
break;
case 'gif':
imageGIF($newImage, $outfilepath);
break;
case 'png':
imagePNG($newImage, $outfilepath, $quality);
break;
case 'bmp':
imageWBMP($newImage, $outfilepath);
break;
}
imagedestroy($newImage);
imagedestroy($origImage);
}
return $outfile;
}
