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'Orientation' EXIF field. Apache::Gallery will then automatically
rotate your images. 

This behavior is default but can be disabled by setting GalleryAutoRotate
to 0.

=item B<GalleryCacheDir>

Directory where Apache::Gallery should create its cache with scaled
pictures. The default is /var/cache/www/ . Here, a directory for each
virtualhost or location will be created automatically. Make sure your
webserver has write access to the CacheDir.

=item B<GalleryTemplateDir>

Full path to the directory where you placed the templates. This option
can be used both in your global configuration and in .htaccess files,
this way you can have different layouts in different parts of your 
gallery.

No default value, this option is required.

=item B<GalleryInfo>

With this option you can define which EXIF information you would like
to present from the image. The format is: '<MyName => KeyInEXIF, 
MyOtherName => OtherKeyInEXIF'

Examples of keys: B<ShutterSpeedValue>, B<ApertureValue>, B<SubjectDistance>,
and B<Camera>

You can view all the keys from the EXIF header using this perl-oneliner:

perl C<-e> 'use Data::Dumper; use Image::Info qw(image_info); print Dumper(image_info(shift));' filename.jpg

Default is: 'Picture Taken => DateTimeOriginal, Flash => Flash'

=item B<GallerySizes>

Defines which widths images can be scaled to. Images cannot be
scaled to other widths than the ones you define with this option.

The default is '640 800 1024 1600'

=item B<GalleryThumbnailSize>

Defines the width and height of the thumbnail images. 

Defaults to '100x75'

=item B<GalleryThumbnailSizeLS>

If set to '1', B<GalleryThumbnailSize> is the long and the short side of
the thumbnail image instead of the width and height.

Defaults to '0'.

=item B<GalleryCopyrightImage>

Image you want to blend into your images in the lower right
corner. This could be a transparent png saying "copyright
my name 2001".

Optional.

=item B<GalleryWrapNavigation>

Make the navigation in the picture view wrap around (So Next
at the end displays the first picture, etc.)

Set to 1 or 0, default is 0

=item B<GalleryAllowOriginal>

Allow the user to download the Original picture without
resizing or putting the CopyrightImage on it.

Set to 1 or 0, default is 0

=item B<GallerySlideshowIntervals>

With this option you can configure which intervals can be selected for
a slideshow. The default is '3 5 10 15 30'

=item B<GallerySortBy>

Instead of the default filename ordering you can sort by any
stat attribute. For example size, atime, mtime, ctime.

=item B<GalleryDirSortBy>

Set this variable to sort directories differently than other items,
can be set to size, atime, mtime and ctime; setting any other value
will revert to sorting by name.

=item B<GalleryMemoize>

Cache EXIF data using Memoize - this will make Apache::Gallery faster
when many people access the same images, but it will also cache EXIF
data until the current Apache child dies.

=item B<GalleryUseFileDate>

Set this option to 1 to make A::G show the files timestamp
instead of the EXIF value for "Picture taken".

=item B<GallerySelectionMode>

Enable the selection mode. Select images with checkboxes and
get a list of filenames. 

=item B<GalleryEXIFMode>

You can choose how Apache::Gallery should display EXIF info
from your images. 

The default setting is 'namevalue'. This setting will make 
Apache::Gallery print out the names and values of the EXIF values 
you configure with GalleryInfo. The information will be parsed into 
$INFO in pictureinfo.tpl.