Augustin Cavalier cd3045596e BColumnListView: Optimize check for whether the focus row has moved.
If the new row is not in an open branch, it cannot possibly have
caused the focused row to have moved, and so we need neither check
nor perform an invalidation if that is the case.

This code has been this way since it was originally imported into
Vision's (!) CVS repository in 2001 from some Be sample code area,
and has not been substantially changed since it was imported into
Haiku's repository in 2004.

This saves quite a number of app_server round-trips and redraws
when importing lots of rows to the list, which fixes the other half
of the hang when changing functions in the call stack in Debugger.
2022-08-31 00:13:24 -04:00
2022-08-10 08:01:06 +00:00
2022-08-27 08:22:26 +00:00
2018-01-04 00:04:02 -06:00
2021-06-13 21:06:58 +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.

Description
The Haiku operating system
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