Augustin Cavalier 8672fc2739 InterfaceDefs: Adjust and introduce new spacing/insets constants.
* Nothing in the tree and few things outside it used BIG_{SPACING|INSETS};
   it seems a value of 15px (at default font size) is not that useful.
   There are, however, a lot of things around the tree that use multiples
   of 20px. So, make BIG be that, with the intent to replace those
   with BIG directly.

 * Introduce CORNER_{SPACING|INSETS}. There are a lot of applications
   (e.g. Tracker, Terminal, Debugger etc.) which use scroll bar width/height
   to metrically align controls with the window frame or with some other
   control which contains scroll bars. Rather than have to invoke
   BScrollBar or BControlLook directly to get the value, we should just
   derive the size of scrollbars from a spacing constant instead
   and get rid of the custom function. (For now it is just replaced.)
   This reuses the old values for BIG, as it is equal to 14px at default.

 * Introduce BORDER_{SPACING|INSETS}. This is equal to the typical border
   size of 1px at default font size (or lower) and uses floor() instead of
   ciel() to compute what the size should be (i.e. it will remain 1px
   at 150%/18pt and only go up at 200%/24pt.) This will allow a lot of
   the hardcoded border sizes around the tree and elsewhere to use
   ComposeSpacing() instead.

Change-Id: Iaea3fa30364859888e816a9d61ac156268d70758
Reviewed-on: https://review.haiku-os.org/c/haiku/+/5702
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
Reviewed-by: nephele <nep@packageloss.eu>
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
2022-11-02 02:23:32 +00:00
2022-10-29 08:13:39 +00:00

Haiku

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Haiku is an open-source operating system that specifically targets personal computing. Inspired by the BeOS, Haiku is fast, simple to use, easy to learn and yet very powerful.

Goals

  • Sensible defaults with minimal configuration required.
  • Clean, clear, concise code.
  • Unified desktop environment.

Trying Haiku

Haiku provides pre-built nightly images and release images. Haiku is compatible with a large variety of hardware, but in case you don't want to "take the plunge" and install Haiku on bare metal, you can install it on a virtual machine (VM) instead. If you've never used a VM before, you can follow one of the "Emulating Haiku" guides.

Compiling Haiku

See ReadMe.Compiling.

Contributing

Haiku is a meritocratic open source project with a large variety of tasks. Even if you can't write code, you can still help! Haiku needs designers, (technical) writers, translators, testers... Get involved and help out!

Contributing code

If you're submitting a patch to us, please make sure you're following the patch submitting guidelines.

If you're having trouble finding something in the source tree, you can use one of our web-based source code browsers:

Contributing documentation

The main piece of documentation that still needs work are the API docs (found in the tree at docs/user). Just find an undocumented class, write documentation for it, and submit a patch.

Contributing translations

See wiki:i18n.

Contributing software ports

See HaikuPorts.

Contributing to our infrastructure

See Infrastructure.

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