/**
* 获取图片mime
*/
public function getMimeType()
{
return MagickGetImageMimeType(self::$resource);
}
public function test($filepath, $original_filename = "")
{
switch ($this->backend) {
case LIBRARY_GD:
$va_info = getimagesize($filepath);
if ($va_info[2] > 0) {
return image_type_to_mime_type($va_info[2]);
}
break;
default:
// Try to detect PDF file by header; if we pass a PDF to MagickPingImage()
// it can crash Apache (on some Linux boxes, at least)
if ($r_fp = fopen($filepath, "r")) {
$vs_header = fread($r_fp, 4);
if ($vs_header == "%PDF") {
return false;
}
fclose($r_fp);
} else {
return false;
}
$r_handle = NewMagickWand();
if (MagickPingImage($r_handle, $filepath)) {
if ($mimetype = MagickGetImageMimeType($r_handle)) {
return $mimetype;
}
}
break;
}
return false;
}
/**
* liberty_magickwand_resize_image
*
* @param array $pFileHash
* @access public
* @return TRUE on success, FALSE on failure - mErrors will contain reason for failure
*/
function liberty_magickwand_resize_image(&$pFileHash)
{
global $gBitSystem;
// static var here is crucial
static $rgbConverts = array();
$magickWand = NewMagickWand();
$pFileHash['error'] = NULL;
$ret = NULL;
if (!empty($pFileHash['source_file']) && is_file($pFileHash['source_file']) && filesize($pFileHash['source_file'])) {
if ($error = liberty_magickwand_check_error(MagickReadImage($magickWand, $pFileHash['source_file']), $magickWand)) {
// $pFileHash['error'] = $error;
$destFile = liberty_process_generic($pFileHash, FALSE);
} else {
if (MagickGetImageColorspace($magickWand) == MW_CMYKColorspace) {
// These two lines are a hack needed for version of Ghostscript less that 8.60
MagickRemoveImageProfile($magickWand, "ICC");
MagickSetImageProfile($magickWand, 'ICC', file_get_contents(UTIL_PKG_PATH . 'icc/USWebCoatedSWOP.icc'));
MagickProfileImage($magickWand, 'ICC', file_get_contents(UTIL_PKG_PATH . 'icc/srgb.icm'));
MagickSetImageColorspace($magickWand, MW_RGBColorspace);
$pFileHash['colorspace_conversion'] = TRUE;
}
MagickSetImageCompressionQuality($magickWand, $gBitSystem->getConfig('liberty_thumbnail_quality', 85));
$iwidth = round(MagickGetImageWidth($magickWand));
$iheight = round(MagickGetImageHeight($magickWand));
// this does not seem to be needed. magickwand will work out what to do by using the destination file extension
//MagickSetImageFormat( $magickWand, $format );
if (empty($pFileHash['max_width']) && empty($pFileHash['max_height']) || !empty($pFileHash['max_width']) && $pFileHash['max_width'] == MAX_THUMBNAIL_DIMENSION || !empty($pFileHash['max_height']) && $pFileHash['max_height'] == MAX_THUMBNAIL_DIMENSION) {
$pFileHash['max_width'] = $iwidth;
$pFileHash['max_height'] = $iheight;
} elseif ($iheight && $iwidth / $iheight < 1 && !empty($pFileHash['max_width']) && !empty($pFileHash['max_height'])) {
// we have a portrait image, flip everything
$temp = $pFileHash['max_width'];
$pFileHash['max_height'] = $pFileHash['max_width'];
$pFileHash['max_width'] = round($iwidth / $iheight * $pFileHash['max_height']);
} elseif (!empty($pFileHash['max_width'])) {
$pFileHash['max_height'] = round($iheight / $iwidth * $pFileHash['max_width']);
} elseif (!empty($pFileHash['max_height'])) {
$pFileHash['max_width'] = round($iwidth / $iheight * $pFileHash['max_height']);
}
// Make sure not to scale up
if ($pFileHash['max_width'] > $iwidth && $pFileHash['max_height'] > $iheight) {
$pFileHash['max_width'] = $iwidth;
$pFileHash['max_height'] = $iheight;
}
// override $mimeExt if we have a custom setting for it
if ($gBitSystem->isFeatureActive('liberty_thumbnail_format')) {
$mimeExt = $gBitSystem->getConfig('liberty_thumbnail_format');
} elseif ($itype = MagickGetImageMimeType($magickWand)) {
list($type, $mimeExt) = preg_split('#/#', strtolower($itype));
} else {
list($type, $mimeExt) = preg_split('#/#', strtolower($pFileHash['type']));
}
$replaced = FALSE;
$mimeExt = preg_replace("!^(x-)?(jpeg|png|gif)\$!", "\$2", $mimeExt, -1, $replaced);
if ($replaced) {
$targetType = $mimeExt;
$destExt = '.' . $mimeExt;
}
if (empty($destExt) || $mimeExt == 'jpeg') {
$targetType = 'jpeg';
$destExt = '.jpg';
}
if (!empty($pFileHash['dest_file'])) {
$destFile = $pFileHash['dest_file'];
} else {
$destFile = STORAGE_PKG_PATH . $pFileHash['dest_branch'] . $pFileHash['dest_base_name'] . $destExt;
}
if (!empty($pFileHash['max_width']) && !empty($pFileHash['max_height']) && ($pFileHash['max_width'] < $iwidth || $pFileHash['max_height'] < $iheight || $mimeExt != $targetType) || !empty($pFileHash['colorspace_conversion'])) {
$pFileHash['name'] = $pFileHash['dest_base_name'] . $destExt;
// Alternate Filter settings can seen here http://www.dylanbeattie.net/magick/filters/result.html
if ($error = liberty_magickwand_check_error(MagickResizeImage($magickWand, $pFileHash['max_width'], $pFileHash['max_height'], MW_CatromFilter, 1.0), $magickWand)) {
$pFileHash['error'] .= $error;
}
if ($error = liberty_magickwand_check_error(MagickWriteImage($magickWand, $destFile), $magickWand)) {
$pFileHash['error'] .= $error;
}
$pFileHash['size'] = filesize($destFile);
} else {
copy($pFileHash['source_file'], $destFile);
}
}
$ret = $destFile;
} else {
$pFileHash['error'] = "No source file to resize";
}
DestroyMagickWand($magickWand);
return $ret;
}
/**
* This is a utility function for adding images to your system. This can be used in
* a console application to pick up an image located at $fsPath and copy it to
* your disk-based data store and create a record in the Images table.
*
* @param string $fsPath The full path to the image you want to add to the system
* @param string $filePath The relative path and file name that you want to use for the resulting Image
* @return string An Image object.
*/
public function createImageObjectFromFileSystemPath($fsPath, $filePath)
{
if (!file_exists($fsPath)) {
throw new Exception("File {$fsPath} does not exist");
}
$magick_wand = NewMagickWand();
MagickReadImage($magick_wand, $fsPath);
//check the image type
$mimeType = MagickGetImageMimeType($magick_wand);
$typeStr = '';
switch ($mimeType) {
case 'image/png':
$typeStr = 'PNG';
break;
case 'image/jpg':
case 'image/jpeg':
$typeStr = 'JPG';
break;
case 'image/gif':
$typeStr = 'GIF';
break;
default:
throw new Exception("Unknown image mime-type {$mimeType}");
break;
}
//Ensure that $filePath is not the path of another Image already in the system. If
//it is a duplicate, append an interger to the file name to make it unique.
$unique = false;
//initialze the unique flag to false
$parts = pathinfo($filePath);
//get the path parts
$baseName = "{$parts['dirname']}/{$parts['filename']}";
//the full path minus file extension
$ext = $parts['extension'];
//the extention
$ct = 0;
//the integer we will append to the filename, if necessary
$testFile = "{$baseName}.{$ext}";
while (!$unique) {
$existImg = Image::findByFilePath($testFile);
//check the database to see if this path already exists
if (!isset($existImg)) {
$unique = true;
//it doesn't exist. $unique==true will break the while
} else {
$ct++;
//it does exist - increment the counter, change the $testFile, then loop to test the file name
$testFile = "{$baseName}{$ct}.{$ext}";
}
}
$finalFilePath = $testFile;
$this->ensureImagePath($finalFilePath);
$fullImagePath = $this->imagesRoot . $finalFilePath;
copy($fsPath, $fullImagePath);
//copy the file to it's official location
$img = new Image();
//create new Image Object
$img->FilePath = $finalFilePath;
$img->ImageType = $typeStr;
$img->Version = 1;
$img->save();
//commit to database
return $img;
}
