libui/README.md

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# libui: a portable GUI library for C
This README is being written.<br>
[![Build Status](https://travis-ci.org/andlabs/libui.png)](https://travis-ci.org/andlabs/libui)
*(currently failing because the version of cmake that Travis uses treats Objective-C files as C++; if you know the fix please file a PR)*
## Announcements
* **5 June 2016**
* **Alpha 3.1 is here.** This was a much-needed update to Alpha 3 that changes a few things:
* **The build system is now cmake.** cmake 2.8.11 or higher is needed.
* Static linking is now fully possible.
* MinGW linking is back, but static only.
*Old announcements can be found in the ANNOUNCE.md file.*
## Updates
*Note that today's entry may be updated later today.*
* **8 June 2016**
* Added `uiForm`, a new container control that arranges controls vertically, with properly aligned labels on each. Have fun!
* **6 June 2016**
* Added `uiRadioButtonsSelected()`, `uiRadioButtonsSetSelected()`, and `uiRadioButtonsOnSelected()` to control selection of a radio button and catch an event when such a thing happens.
* **5 June 2016**
* Added `uiNewPasswordEntry()`, which creates a new `uiEntry` suitable for entering passwords.
* Added `uiNewSearchEntry()`, which creates a new `uiEntry` suitable for searching. On some systems, the `OnChanged()` event will be slightly delayed and/or combined, to produce a more natural feel when searching.
*Old updates can be found in the Changelog.md file.*
## Runtime Requirements
* Windows: Windows Vista SP2 with Platform Update or newer
* Unix: GTK+ 3.10 or newer
* Mac OS X: OS X 10.8 or newer
## Build Requirements
* All platforms:
* CMake 2.8.11 or newer
* Windows: either
* Microsoft Visual Studio 2013 or newer (2013 is needed for `va_copy()`) — you can build either a static or a shared library
* MinGW-w64 (other flavors of MinGW may not work) — **you can only build a static library**; shared library support will be re-added once the following features come in:
* [Isolation awareness](https://msdn.microsoft.com/en-us/library/aa375197%28v=vs.85%29.aspx), which is how you get themed controls from a DLL without needing a manifest
* Unix: nothing else specific
* Mac OS X: nothing else specific, so long as you can build Cocoa programs
## Building
Out-of-tree builds typical of cmake are preferred:
```
$ # you must be in the top-level libui directory, otherwise this won't work
$ mkdir build
$ cd build
$ cmake ..
```
Pass `-DBUILD_SHARED_LIBS=OFF` to `cmake` to build a static library. The standard cmake build configurations are provided; if none is specified, `Debug` is used.
If you use a makefile generator with cmake, then
```
$ make
$ make tester # for the test program
$ make examples # for examples
```
and pass `VERBOSE=1` to see build commands. Build targets will be in the `build/out` folder.
Project file generators should work, but are untested by me.
On Windows, I use the `Unix Makefiles` generator and GNU make (built using the `build_w32.bat` script included in the source and run in the Visual Studio command line). In this state, if MinGW-w64 (either 32-bit or 64-bit) is not in your `%PATH%`, cmake will use MSVC by default; otherwise, cmake will use with whatever MinGW-w64 is in your path. `set PATH=%PATH%;c:\msys2\mingw(32/64)\bin` should be enough to temporarily change to a MinGW-w64 build for the current command line session only if you installed MinGW-w64 through [MSYS2](https://msys2.github.io/); no need to change global environment variables constantly.
## Installation
#### Arch Linux
Can be built from AUR: https://aur.archlinux.org/packages/libui-git/
## Documentation
Needs to be written. Consult ui.h and the examples for details for now.
## Language Bindings
libui was originally written as part of my [package ui for Go](https://github.com/andlabs/ui). Now that libui is separate, package ui has become a binding to libui. As such, package ui is the only official binding.
Other people have made bindings to other languages:
Language | Bindings
--- | ---
C#/.net | [LibUI.Binding](https://github.com/NattyNarwhal/LibUI.Binding), [SharpUI](https://github.com/benpye/sharpui/)
Crystal | [libui.cr](https://github.com/Fusion/libui.cr)
D | [DerelictLibui](https://github.com/Extrawurst/DerelictLibui)
Euphoria | [libui-euphoria](https://github.com/ghaberek/libui-euphoria)
Haskell | [libui-haskell](https://github.com/ajnsit/libui-haskell)
JavaScript | [libui.js (merged into libui-node?)](https://github.com/mavenave/libui.js)
Julia | [Libui.jl](https://github.com/joa-quim/Libui.jl)
Lua | [libuilua](https://github.com/zevv/libuilua), [libui-lua](https://github.com/mdombroski/libui-lua)
Nim | [ui](https://github.com/nim-lang/ui)
Node.js | [libui-node](https://github.com/parro-it/libui-node)
Python | [pylibui](https://github.com/joaoventura/pylibui)
Ruby | [libui-ruby](https://github.com/jamescook/libui-ruby)
Rust | [libui-rs](https://github.com/pcwalton/libui-rs)
## Screenshots
From examples/controlgallery:
![Windows](examples/controlgallery/windows.png)
![Unix](examples/controlgallery/unix.png)
![OS X](examples/controlgallery/darwin.png)