mirror of
https://bitbucket.org/smil3y/katie.git
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93 lines
4.8 KiB
Text
93 lines
4.8 KiB
Text
Katie is continuation of the Qt4 C++ toolkit with the goal to keep it alive,
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clean it up, fix some bugs and backport some features from Qt5. It is based
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on the latest Git revision of Qt v4.8.
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There are several things you should be aware before considering Katie:
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- some components and tools have been removed:
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- QMake, Linguist, Assistant, checksdk, macdeployqt, pixeltool, qconfig,
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qdoc, qev, qvfb, runonphone and other non-essential
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- Qt3Support, QtWebKit, QtHelp, QtXmlPatterns, QtOpenGL, ActiveQt, Phonon and
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QtMultimedia
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- some things have changed:
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- QMake build system replaced with CMake
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- QStyleOption*V{2,3,4} classes have been merged
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- QIconEngineV{2} classes have been merged
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- QIconEnginePluginV{2} classes have been merged
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- QIconEngineFactoryInterfaceV{2} classes and interfaces have been merged
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- QKeyEventEx and QKeyEvent classes have been merged
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- QMouseEventEx and QMouseEvent classes have been merged
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- QGuiPlatformPlugin class is public
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- zlib, zstd, OpenSSL, PCRE, Freetype, ICU and X11 are required for building
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- OpenSSL, D-Bus, CUPS, resolv and NSL cannot be runtime dependencies, they
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must be linked to during build
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- QtUiTools is build as shared library by default
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- moc, uic, rcc, lrelease, lupdate, etc. are linked to components
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- updated bundled Harfbuzz from upstream (not Harfbuzz-NG)
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- updated bundled FFTW and Valgrind from upstream
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- updated localizations data from Common Locale Data Repository v36
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- SQLite driver uses UTF-8 encoding instead of UTF-16
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- default text codec for C-strings is UTF-8
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- Symbian, QWS, QPA, Mac and Windows are no longer supported platforms
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- OpenVG is no longer supported graphics output
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- Blitter is no longer supported painting engine
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- native graphics system is no more, rasterizer is just as fast as native
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- QPicture, QPictureIO and plugins for it are no longer supported
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- QML debugger and inspector have been removed, potentially dangerous
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- no SIMD, zero performance impact with decent compiler
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- state machine is no more
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- removed non-open source DB2, OCI, TDS and InterBase database drivers
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- removed 3rd party sources that are very common nowdays
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- dropped dnotify filesystem watcher support
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- dropped Glib2 event dispatcher support
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- some additions have been made:
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- JSON classes and types
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- command line parser
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- standard directories handler
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- building with OpenSSL v1.1+ is possible
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- building with IODBC instead of unixODBC is possible
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- building with LTO is possible and supported, if the toolchain can handle it
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- building without resolv is possible
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- alternative libc implementations support
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- additional text codecs via ICU converter
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- Unicode v5.0+ characters and partial scripts support
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- support for locale aliases
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- support for generating SHA-224, SHA-256, SHA-384, SHA-512 hash sums (SHA-2)
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- verification section for plugins build with Clang
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- faster alternatives to qCompress() and qUncompress()
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- stack unwinding on assert via libunwind
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- brief manual pages for all command-line tools
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- desktop files, Shell profile and dynamic linker/loader config
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- automatic async DBus calls based on return type, no Q_NOREPLY needed
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- more reliable qrand(), seeded per thread
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- improved signal/slot template arguments handling
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- improved OpenSSL default certificate and certificates directory detection
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- improved namespaces support and introduced QT_NAMESPACE_COMPAT
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- improved cross-compilation support
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- script component relies on PCRE instead of internal copy
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- tests and benchmarks can be run without prior installation
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Bugs fixed in Katie, some of which in Qt5 too:
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QTBUG-23502, QTBUG-37115, QTBUG-15052, QTBUG-23522, QTBUG-6139, QTBUG-26889,
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QTBUG-21548, QTBUG-6133, QTBUG-18188, QTBUG-36767, QTBUG-35387, QTBUG-37035,
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QTBUG-28321, QTBUG-21993, QTBUG-26590, QTBUG-2124, QTBUG-20482, QTBUG-41361,
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QTBUG-40153, QTBUG-35479, QTBUG-1628, QTBUG-42989, QTBUG-34861, QTBUG-46767,
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QTBUG-25114, QTBUG-24672, QTBUG-23524 (WIP), QTBUG-56088, QTBUG-42189,
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QTBUG-39285, QTBUG-18173, QTBUG-28968, QTBUG-34336, QTBUG-40974, QTBUG-44286,
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QTBUG-12564, QTBUG-20028, QTBUG-71967, QTBUG-70956, QTBUG-71446, QTBUG-61307,
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QTBUG-27287, QTBUG-25143, QTBUG-22833, QTBUG-57399, QTBUG-59159, QTBUG-15773,
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QTBUG-70506, QTBUG-46054
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Unless you use QMake and QDoc porting to Katie or even supporting it along with
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Qt4 in the same codebase is trivial and requires only minor changes because
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Katie is mostly source compatible with Qt 4.8.x, compatibility with releases
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earlier than that is not a goal. Do note that using libraries that
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are linked to Qt4 from applications linked to Katie will trigger undefined
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behaviour.
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Should you enouncter a problem please report it at
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https://github.com/fluxer/katie/issues. For more information about changes,
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how to handle them and general info please visit
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https://github.com/fluxer/katie/wiki.
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