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This commit brings full flexibility of custom image size definition and
usage. When a custom image size is defined, it automatically maps to the
album <item> tag arguments. Alternatively, this automatic name matching
can be overriden by <size tagname="..."> theme setup tags.
This allows us to supply image of different sizes that can be also used
in templates.
Legacy behaviour of "fullsize" and "preview" image size fallback is
retained (though not recommended in new theming setups).
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Turned out there was no need for having most of the picture page
closed in a block.
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There may be certain cases where images or thumbnails on album pages
are not needed and textual representation is just fine.
Metadata pulled from the source image files are still processed and
exposed.
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This mode retains given aspect ratio and crops the area from inside of the
source image.
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This commit makes use of a common function for all template parsing and page
writing. The behaviour is controlled by the "item" argument passed in. This
allows us to have a single code that generates code for list of items as well
as for a single item. In the future, this can be used for e.g. combining
thumbnails and large images on the same page.
Other than that this commit also brings several other changes:
- further clarification of theming setup XML file
- <protected_thumbnail> tag has been moved out of the <album> structure into
the <index> structure where it functionally belongs. Only whole albums can
be protected and the substitute thumbnail is displayed on index pages.
- position marker format has been broken out to a constant
- added few more FIXMEs to mark places that will change soon
- some template variables have been renamed
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Navigation bar can be complex and comprises of several different elements.
Until now the navigation bar was almost hardcoded. We needed to separate
different types of navigation bar elements:
* NAV_BAR_FIRST
- the first element, usually denoting gallery root. This element takes
priority and is used when there are no other elements in the path.
* NAV_BAR_ELEM
- normal element used in the path between first and last elements.
* NAV_BAR_LAST
- ending element, guaranteed there's at least the NAV_BAR_FIRST element
before.
* NAV_BAR_CURRENT
- non-clickable informational element displaying the current page title.
Optional, in contrast to the former three defines.
* NAV_BAR_CURRENT_ROOT
- a special case of the latter one, displayed at the very root page.
Also optional, in that case the navigation bar would become empty.
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This change makes thumbnail image sizes more flexible by explicitly
stating the particular image size is a thumbnail. And each thumbnail
image size can have different squared settings.
On the theme side it's now mandatory to specify which thumbnail size
to use (if applicable). This allows us to have different thumbnail styles
for index and album pages.
This commit also removes the <squared_thumbnails> tag from setup.xml
file but retains fallback for ver. 1 setup.xml files.
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Although probably not very common scenario, let's be consistent across
all defined image sizes and clearly state that an explicitly supplied
image file for an optional image size should carry the tag in order
not to get resized.
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This is a new internal properties storage for attributes that can be
defined both in the item and album scope, with the item scope taking
priority.
The big advantage is a better distinguishment from an undefined, default
value. It also makes easier to retrieve attributes with properly defined
scope priorities.
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There were lots of errors reported for the same issue recently, let's
silence some and only report image copy/resize errors.
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This is a file format break within development branch.
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Similar to using supplied timestamps this is useful for fully manual
lenses that don't provide any information to the camera.
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In simple crop square mode it's sometimes viable to specify position
of the square. This is vastly useful for portrait pictures so that you
don't crop the head off the body.
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Hopefully some browsers would understand that.
http://microformats.org/wiki/existing-rel-values
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If there's a tag defined but not used on replace table processing,
this option determines whether it should be written in the generated
file or ignored completely.
Turned on by default, this will save a few bytes. Use commandline option
'--debug-dont-strip-unused-tags' to turn it off, e.g. when debugging
template files.
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Some RAW editors like Adobe products like to include XMP data. Let's
strip them all off (unless disabled).
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Turned off by default, this will copy all data from supplied external
EXIF metadata file back to all generated image files. All user overrides
are still applied on top of it.
Another reason for turning this off is file size concern, target image
files would carry a lot more information that may not be always needed and
would increase total amount of data transferred.
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This essentially means faking the datetime, e.g. when you want to mask
original picture date.
This commit also changes little bit of datetime conversion, hopefully
fixing DST issues. Needs more testing.
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Simple datetime shift, including EXIF data modification.
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Also adds IS_PROTECTED define in local item scope.
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This change allows using local defines related to each item in the album
or index page.
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This adds support for simple password protected areas (albums and
all subalbums) through webserver HTTP authentication. CGG simply
generates .htaccess and password files and it's up to the user to
set up the rest on server side.
No UI changes at this point. Limited to one user per album for
the moment.
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This brings an ability to specify external file to read EXIF/IPTC
data from. The motivation was to work around RAW editors randomly
stripping some EXIF blocks.
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Simple check whether the EXIF/IPTC key is available for the current
image. Precisely one argument is required, similar to the get_exif_value()
custom function, an Exiv2 metadata attribute string is expected.
This allows templates to change behaviour when certain metadata key
is not present (e.g. don't print the particular table line at all).
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This brings a new HAS_EXIF define which is present when
EXIF information are available. Templates have been modified
to inform user when not available.
The test for EXIF metadata presence is fairly basic, we only look
for aperture, focal length and exposure time attributes. This might
be a subject to change in the future.
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This allows much greater flexibility from templates regarding
EXIF metadata handling, no more hardcoded symbols. It's possible
to display essentially any attribute known to Exiv2. Please see
http://exiv2.org/metadata.html
This brings two new functions that can be called from templates:
* get_exif_value (exiv2_attribute)
* get_exif_value_fixed (exiv2_attribute)
Both functions take a string argument of metadata attribute name
from Exiv2 namespace. The difference is that get_exif_value_fixed()
does some extra formatting for several basic attributes
(e.g. datetime format).
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This comes with a cost of decoding full image when only getting image size.
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This change allows greater flexibility for separate themes.
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This allows actual defines to be used without explicit update.
Also brings the benefit of placing empty string when define is not defined.
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This is very basic scripting support - simple value retrieval and
block conditionals. Defines could be either static from theme setup
or programatically added during page generation.
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This extends current templating system to another dimension,
bringing the possibility to have multiple themes generated
at once. The purpose is to be able to switch between multiple
designs, from PC to mobile, classic vs. flat view, slideshow, etc.
For the moment, only the classic theme is available.
Rules:
* for switching between themes, place a link inside your template
manually - it's not a cgg concern, only your theming infrastructure
* don't forget to define different file names for index and album
pages across different themes
* it's recommended to keep default theme named as "index.*" to avoid
showing directory listing on webserver
Notes:
* some TODOs will be fixed when we have new theme using these advanced
features (e.g. pictures in album pages)
* TODO: introduce tag/block conditional system, allow custom user
defines for each theme/page
* TODO: deprecate <show_go_up>, <show_exif_table> and <border style>
in favor of conditionals (these tags belong to theming)
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No need to store generated data during thread work anymore.
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This has a nice side effect of not having double slashes in paths anymore.
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This will allow us to pass detailed path info to worker methods.
Each path info instance is bound to a currently processed album
and directory.
Possibly move to struct TItems in the future.
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Disabled by default, only very simple center crop implemented.
The SQUARED_SIMPLE_SHAVE_AMOUNT constant may be slightly adjusted
according to future experience. It's a really dumb algorithm which
may not be suitable for every picture.
Looking for a fast and smart algorithm to determine image weight center
and radius, i.e. focus on object of interest. The OpenCV's face recognition
features are worth to test and consider, though I fear the speed issues.
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This option takes the highest priority
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