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libui: a portable GUI library for C
This README is being written.
Status
It has come to my attention that I have not been particularly clear about how usable or feature-complete libui is, and that this has fooled many people into expecting more from libui right this moment than I have explicitly promised to make available. I apologize for not doing this sooner.
libui is currently mid-alpha software. Much of what is currently present runs stabily enough for the examples and perhaps some small programs to work, but the stability is still a work-in-progress, much of what is already there is not feature-complete, some of it will be buggy on certain platforms, and there's a lot of stuff missing. In short, here's a list of features that I would like to add to libui, but that aren't in yet:
trees
clipboard support, including drag and drop
more and better dialogs
printing
accessibility for uiArea and custom controls
document-based programs
tighter OS integration (especially for document-based programs), to allow programs to fully feel native, rather than merely look and act native
better support for standard dialogs and features (search bars, etc.)
OpenGL support
In addition, here is a list of issues generalizing existing problems.
Furthermore, libui is not properly fully documented yet. This is mainly due to the fact that the API was initially unstable enough so as to result in rewriting documentation multiple times, in addition to me not being happy with really any existing C code documentation tool. That being said, I have started to pin down my ideal code documentation style in parts of ui.h, most notably in the uiAttributedString APIs. Over time, I plan on extending this to the rest of the headers. You can also use the documentation for libui's Go bindings as a reference, though it is somewhat stale and not optimally written.
But libui is not dead; I am working on it whenever I can, and I hope to get it to a point of real quality soon!
News
Note that today's entry (Eastern Time) may be updated later today.
7 April 2019
The build system has been switched to Meson. See below for instructions. This change was made because the previous build system, CMake, caused countless headaches over trivial issues. Meson was chosen due to how unproblematic setting up libui's build just right was, as well as having design goals that are by coincidence closely aligned with what libui wants.
Travis CI has been replaced with Azure Pipelines and much of the AppVeyor CI configuration was integrated into the Azure Pipelines configuration. This shouldn't affect most developers.
1 September 2018
Alpha 4.1 is here. This is an emergency fix to Alpha 4 to fix uiImageAppend() not working as documented. It now works properly, with one important difference you'll need to care about: it now requires image data to be alpha-premultiplied. In addition, uiImage also is implemented slightly more nicely now, and ui.h has minor documentation typo fixes.
Alpha 4.1 also tries to make everything properly PIC-enabled.
10 August 2018
Alpha 4 is finally here. Everything from Alpha 3.5 and what's listed below is in this release; the two biggest changes are still the new text drawing API and new uiTable control. In between all that is a whole bunch of bugfixes, and hopefully more stability too. Thanks to everybody who helped contribute!
Alpha 4 should hopefully also include automated binary releases via CI. Thanks to those who helped set that up!
8 August 2018
Finally introduced an API for loading images, uiImage, and a new control, uiTable, for displaying tabular data. These provide enough basic functionality for now, but will be improved over time. You can read the documentation for the new features as they are here. Thanks to everyone who helped get to this point, in particular @bcampbell for the initial Windows code, and to everyone else for their patience!
30 May 2018
Merged the previous Announcements and Updates section of this README into a single News section, and merged the respective archive files into a single NEWS.md file.
16 May 2018
Thanks to @parro-it and @msink, libui now has better CI, including AppVeyor for Windows CI, and automated creation of binary releases when I make a tagged release.
13 May 2018
Added new functions to work with uiDateTimePickers: uiDateTimePickerTime(), uiDateTimePickerSetTime(), and uiDateTimePickerOnChanged(). These operate on standard <time.h> struct tms. Thanks @cody271!
Release builds on Windows with MSVC should be fixed now; thanks @l0calh05t, @slahn, @mischnic, and @zentner-kyle.
12 May 2018
GTK+ and OS X now have a cleaner build process for static libraries which no longer has intermediate files and differing configurations. As a result, certain issues should no longer be present. New naming rules for internal symbols of libui have also started being drafted; runtime symbols and edge cases still need to be handled (and the rules applied to Windows) before this can become a regular thing.
2 May 2018
On Windows, you no longer need to carry around a libui.res file with static builds. You do need to link in the appropriate manifest file, such as the one in the windows/ folder (I still need to figure out exactly what is needed apart from the Common Controls v6 dependency, or at least to create a complete-ish template), or at least include it alongside your executables. This also means you should no longer see random cmake errors when building the static libraries.
18 April 2018
Introduced a new uiTimer() function for running code on a timer on the main thread. (Thanks to @cody271.)
Migrated all code in the common/ directory to use uipriv prefixes for everything that isn't static. This is the first step toward fixing static library oddities within libui, allowing libui to truly be safely used as either a static library or a shared library.
18 March 2018
Introduced an all-new formatted text API that allows you to process formatted text in ways tha
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