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Wiki page about-efl.md changed with summary [Markdown version] by Nate Drake
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~~Title: About EFL~~
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==== EFL ====
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[[download|Download EFL Here]]
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Code quality - [[https://scan.coverity.com/projects/552|EFL Coverity scan status]]
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{{:efl-core.png?nolink |}}
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EFL is made up of quite a few libraries that build on top of each other
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in layers, steadily becoming higher-level, yet allowing access to
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each level as they go. The higher up you go, the less you have to do
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yourself. Elementary is about as high up as you get, while you still
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access layers below it for day to day things as there is no need for
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it to wrap things that work perfectly well as-is.
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All of EFL exposes its APIs by default in C, with several bindings
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available. We are now also working on supporting bindings for various
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language as first-class-citizens in EFL by auto-generating the
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bindings directly from our new object orientation infrastructure for
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C. We stick to C mostly because the libraries have been around for a
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long time, were originally written in C and the developers who write
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the libraries prefer C. We add OO features in C with tools and
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infrastructure where needed. Also moving from C would limit the
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audience. C programmers won't be able to access a %%C++%% API (whereas a
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%%C++%% programmer can access both C and %%C++%%). That is partly why we aim
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to auto-generate bindings so programmers of various languages can get
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native-like APIs for their chose language from the same core EFL API
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set.
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Our components are divided into named libraries or projects. Core EFL
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components are:
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^Component ^ Description ^
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|Evas |Core scene graph and rendering |
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|Eina |Data structures and low level helpers |
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|Edje |UI layout & animation data files for themes |
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|Eet |Data (de)serialization and storage |
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|Ecore |Core loop and system abstractions like X11 |
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|Efreet |Freedesktop.org standards handling |
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|Eldbus |D-Bus glue and handling |
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|Embryo |Tiny VM and compiler based on Pawn |
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|Eeze |Device enumeration and access library |
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|Emotion |Video decode wrapping, glue and abstraction |
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|Ethumb |Thumbnailing handler |
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|Ephysics |Physics (bullet) wrapper and Evas glue |
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|EIO |Asynchronous I/O handling |
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|Evas Generic Loaders |Extra image loaders for complex image types |
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|Emotion Generic Players |Extra video decoders (for VLC) |
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|Elementary |Widgets and high level abstractions |
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Binding support exists for several languages such as:
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* Python
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* Javascript
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* %%C++%%
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* Ruby
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* Lua
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EFL was originally intended to provide the core for Enlightenment, but
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has grown to do much more. In trying to keep EFL lean, it has found a
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use for embedded devices all the way up to powerful desktop behemoths.
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These libraries already power millions of systems, from mobile
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phones to set top boxes, desktops, laptops, game systems and more. It
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is only now being recognized for its forward-thinking approaches, as
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products and designers want to do more than the boring functional user
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experiences of the past. This is where EFL excels.
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[[http://www.free.fr|Free.fr]] has shipped millions of set top boxes in
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France, powered by EFL. The
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[[http://wiki.openmoko.org/wiki/Neo_FreeRunner|Openmoko Freerunner]]
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sold thousands of devices with EFL and Enlightenment on them.
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[[http://www.yellowdoglinux.com/|Yellow Dog Linux]] for the Sony PS3
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ships with Enlightenment as the default. EFL has been used on printers,
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netbooks and more. It powers the
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[[http://www.samsung.com/us/mobile/wearable-tech|Samsung Galaxy Gear]]
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watches (Gear 2, S, S2, S3...), is behind the
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[[http://www.samsung.com/in/consumer/mobile-phone/mobile-phone/dual-sim-phone/SM-Z130HZKDINS|Samsung Z1 ]],
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[[http://www.samsung.com/in/microsite/z2|Z2]] and
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[[http://www.samsung.com/in/microsite/z3|Z3]] mobile phones,
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and the
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[[http://www.samsung.com/us/video/4k-suhd-tv|Samsung SUHD Smart TVs]]
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that run Tizen. Cameras also use Enlightenment and EFL such as the
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[[http://www.samsung.com/uk/discover/camera/find-your-signature-with-samsung-nx1/|Samsung NX1]]
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and the
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[[http://www.samsung.com/global/nx/nx300m/|Samsung NX300M]] smart
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Camera. Also GPS units such as models from
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[[https://www.moncoyote.com/|Coyote]] Run EFL on a lean and mean RTOS.
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Also Web conference cameras such as
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[[https://www.biscotti.com/|Biscotti]] use EFL to do their work.
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