git.osdn.net Git - kde/Katie.git/blob

1 Katie is continuation of the Qt4 C++ toolkit with the goal to keep it alive,

2 clean it up, fix some bugs and backport some features from Qt5. It is based

3 on the latest Git revision of Qt v4.8.

4

5 There are several things you should be aware before considering Katie:

6

7 - some components and tools have been removed:

8 - QMake, Linguist, Assistant, checksdk, macdeployqt, pixeltool, qconfig,

9 qdoc, qev, qvfb, runonphone and other non-essential

10 - Qt3Support, QtWebKit, QtHelp, QtXmlPatterns, QtOpenGL, ActiveQt, Phonon and

11 QtMultimedia

12

13 - some things have changed:

14 - QMake build system replaced with CMake

15 - QStyleOption*V{2,3,4} classes have been merged

16 - QIconEngineV{2} classes have been merged

17 - QIconEnginePluginV{2} classes have been merged

18 - QIconEngineFactoryInterfaceV{2} classes and interfaces have been merged

19 - QKeyEventEx and QKeyEvent classes have been merged

20 - QMouseEventEx and QMouseEvent classes have been merged

21 - QGuiPlatformPlugin class is public

22 - zlib, zstd, OpenSSL, PCRE, Freetype and X11 are required for building

23 - OpenSSL, D-Bus, CUPS, resolv and NSL cannot be runtime dependencies, they

24 must be linked to during build

25 - QtUiTools is build as shared library by default

26 - moc, uic, rcc, lrelease, lupdate, etc. are linked to components

27 - updated bundled Harfbuzz from upstream (not Harfbuzz-NG)

28 - updated bundled FFTW and Valgrind from upstream

29 - Symbian, QWS, QPA, Mac and Windows are no longer supported platforms

30 - OpenVG is no longer supported graphics output

31 - Blitter is no longer supported painting engine

32 - native graphics system is no more, rasterizer is just as fast as native

33 - QPicture, QPictureIO and plugins for it are no longer supported

34 - QML debugger and inspector have been removed, potentially dangerous

35 - no SIMD, zero performance impact with decent compiler

36 - state machine is no more

37 - removed non-open source DB2, OCI, TDS and InterBase database drivers

38 - removed 3rd party sources that are very common nowdays

39

40 - some additions have been made:

41 - JSON classes and types

42 - command line parser

43 - standard directories handler

44 - building with OpenSSL v1.1+ is possible

45 - building with ICU v59+ is possible

46 - building with IODBC instead of unixODBC is possible

47 - building with LTO is possible and supported, if the toolchain can handle it

48 - building without resolv is possible

49 - alternative libc implementations support

50 - support for generating SHA-224, SHA-256, SHA-384, SHA-512 hash sums (SHA-2)

51 - faster alternatives to qCompress() and qUncompress()

52 - brief manual pages for all command-line tools

53 - desktop files, Shell profile and dynamic linker/loader config

54 - automatic async DBus calls based on return type, no Q_NOREPLY needed

55 - more reliable qrand(), seeded per thread

56 - improved signal/slot template arguments handling

57 - improved OpenSSL default certificate and certificates directory detection

58 - improved namespaces support and introduced QT_NAMESPACE_COMPAT

59 - script component relies on PCRE instead of internal copy

60 - tests and benchmarks can be run without prior installation

61

62 Bugs fixed in Katie, some of which in Qt5 too:

63 QTBUG-23502, QTBUG-37115, QTBUG-15052, QTBUG-23522, QTBUG-6139, QTBUG-26889,

64 QTBUG-21548, QTBUG-6133, QTBUG-18188, QTBUG-36767, QTBUG-35387, QTBUG-37035,

65 QTBUG-28321, QTBUG-21993, QTBUG-26590, QTBUG-2124, QTBUG-20482, QTBUG-41361,

66 QTBUG-40153, QTBUG-35479, QTBUG-1628, QTBUG-42989, QTBUG-34861, QTBUG-46767,

67 QTBUG-25114, QTBUG-24672, QTBUG-23524 (WIP), QTBUG-56088, QTBUG-42189,

68 QTBUG-39285, QTBUG-18173, QTBUG-28968, QTBUG-34336, QTBUG-40974, QTBUG-44286,

69 QTBUG-12564, QTBUG-20028, QTBUG-71967, QTBUG-70956, QTBUG-71446, QTBUG-61307

70

71 Unless you use QMake and QDoc porting to Katie or even supporting it along with

72 Qt4 in the same codebase is trivial and requires only minor changes because

73 Katie is mostly source compatible with Qt 4.8.x, compatibility with releases

74 earlier than that is not a goal. Do note that using libraries that

75 are linked to Qt4 from applications linked to Katie will trigger undefined

76 behaviour.

77

78 Should you enouncter a problem please report it at

79 https://github.com/fluxer/katie/issues. For more information about changes,

80 how to handle them and general info please visit

81 https://github.com/fluxer/katie/wiki.