/**
* Fixes image orientation
*
* @since 1.0
* @access public
* @param string
* @return
*/
public function fixOrientation()
{
$exif = FD::get('Exif');
if (!$exif->isAvailable()) {
return false;
}
// Get the mime type for this image
$mime = $this->getMime();
// Only image with jpeg are supported.
if ($mime != 'image/jpeg') {
return false;
}
// Load exif data.
$exif->load($this->meta->path);
$orientation = $exif->getOrientation();
switch ($orientation) {
case 1:
// Do nothing here as the image is already correct.
$this->adapter->rotate($this->image, 0);
break;
case 2:
// Flip image horizontally since it's at top right
$this->adapter->flop($this->image);
break;
case 3:
// Rotate image 180 degrees left since it's at bottom right
$this->adapter->rotate($this->image, 180);
break;
case 4:
// Flip image vertically because it's at bottom left
$this->adapter->flip($this->image);
break;
case 5:
// Flip image vertically
$this->adapter->flip($this->image);
// Rotate image 90 degrees right.
$this->adapter->rotate($this->image, -90);
break;
case 6:
// Rotate image 90 degrees right
$this->adapter->rotate($this->image, 90);
break;
case 7:
// Flip image horizontally
$this->adapter->flop($this->image);
// Rotate 90 degrees right.
$this->adapter->rotate($this->image, 90);
break;
case 8:
// Rotate image 90 degrees left
$this->adapter->rotate($this->image, -90);
break;
}
}
function generateThumbnail($originalImgPath, $thumbDir, $prefix, $thumbWidth = 0, $thumbHeight = 0, $type = 'resize', $typeParams = array(), $filters = array())
{
$thumbSize = AriImageHelper::getThumbnailDimension($originalImgPath, $thumbWidth, $thumbHeight);
if (!$thumbSize['w'] || !$thumbSize['h'] || !@is_readable($originalImgPath))
return null;
$width = $thumbSize['w'];
$height = $thumbSize['h'];
$path_parts = pathinfo($originalImgPath);
$thumbName = AriImageHelper::generateThumbnailFileName($prefix, $originalImgPath, $width, $height, $type);
$thumbImgPath = $thumbDir . DS . $thumbName;
if (@file_exists($thumbImgPath) && @filemtime($thumbImgPath) > @filemtime($originalImgPath))
return $thumbName;
if (!AriImageHelper::initAsido())
return ;
$thumbImg = Asido::image($originalImgPath, $thumbImgPath);
$needResize = true;
if ($type == 'crop')
{
Asido::crop(
$thumbImg,
intval(AriUtils::getParam($typeParams, 'x', 0), 10),
intval(AriUtils::getParam($typeParams, 'y', 0), 10),
$width ? $width : $height,
$height ? $height : $width
);
$needResize = false;
}
else if ($type == 'cropresize')
{
Asido::crop(
$thumbImg,
intval(AriUtils::getParam($typeParams, 'x', 0), 10),
intval(AriUtils::getParam($typeParams, 'y', 0), 10),
intval(AriUtils::getParam($typeParams, 'width', 0), 10),
intval(AriUtils::getParam($typeParams, 'height', 0), 10)
);
}
if ($filters)
{
if (AriUtils::parseValueBySample(
AriUtils::getParam($filters, 'grayscale', false),
false)
)
{
Asido::grayscale($thumbImg);
}
$rotateFilter = AriUtils::getParam($filters, 'rotate');
if (is_array($rotateFilter) &&
AriUtils::parseValueBySample(
AriUtils::getParam($rotateFilter, 'enable', false),
false)
)
{
$angle = 0;
$rotateType = AriUtils::getParam($rotateFilter, 'type', 'fixed');
if ($rotateType == 'random')
{
$startAngle = intval(AriUtils::getParam($rotateFilter, 'startAngle', 0), 10);
$endAngle = intval(AriUtils::getParam($rotateFilter, 'endAngle', 0), 10);
$angle = rand($startAngle, $endAngle);
}
else
{
$angle = intval(AriUtils::getParam($rotateFilter, 'angle', 0), 10);
}
$angle = $angle % 360;
if ($angle != 0)
{
Asido::rotate($thumbImg, $angle);
}
}
}
if ($needResize)
{
if (!$width)
Asido::height($thumbImg, $height);
else if (!$height)
Asido::width($thumbImg, $width);
else
Asido::resize($thumbImg, $width, $height, ASIDO_RESIZE_STRETCH);
}
$thumbImg->save(ASIDO_OVERWRITE_ENABLED);
return $thumbName;
}
