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Qtah Changelog

Unreleased

  • Fixed building on macOS w.r.t. new enum autodetection (issue #43).

  • Version bound fixes for parts of the Qt API (issue #42).

(2019-12-23) *-0.6.0

This release marks the largest API increase in any Qtah release so far: 62 new classes, many others fleshed out with new methods, and lots of new enums as well. This also bumps Qtah from Hoppy 0.5 to Hoppy 0.7, incorporating all of the new features launched in Hoppy 0.6 (the impact of which is summarized here).

  • [API change] QFlags are now implemented in Qtah itself, rather than relying on Bitspaces from Hoppy. There is a new Flags typeclasses to complement the existing IsFoo per-bitspace/flags typeclasses. This new typeclass links a flags type together with its enum and raw numeric types. The IsFoo typeclasses no longer have instances for Int, to make conversions between numeric types more explicit.

  • [API change] Passing this on from Hoppy, there are some important changes to enums.

    One: All enums are now capable of representing unknown values, i.e. if Qt defines values that Qtah doesn't, Qtah code will no longer invoke error on seeing such a value. There is an additional "Unknown" data constructor on each enum that holds a number. GHC will warn about these if you don't pattern match against them.

    Two: Hoppy previously had issues when two enum entries had the same numeric value, so for the binding definitions we just picked the most sensible one. Hoppy now supports this, so we can start including all enum entries. Some but not all enums have had their missing values added.

    Three: Enums no longer have instances for Bounded and Enum. Instead, they have instances for a new CppEnum typeclass provided by Hoppy. The Bounded and Enum instances weren't implemented correctly.

    Four: Hoppy now handles enum numeric types correctly rather than assuming everything is an Int. This might require you to perform additional casts for type safety.

  • Thanks to Maxim Koltsov and Yuriy Syrovetskiy for more additions and bug fixes, and an especially huge thanks to Jagoda Górska for a huge number of additions in this release: 62 new classes, many others fleshed out with new methods, and lots of new enums as well.

  • As of this release, Qtah will no longer support Qt 4.x. Qt 4 has been dead for a long time now, with most Linux distributions having dropped it, and it is no longer feasible to continue testing against and supporting it.

  • Removed uses of CPP from qtah-generator, except for Setup.hs. This bumps minimum version requirements to base >= 4.8.0 (GHC 8.0) and mtl >= 2.2.1, both of which have been available for over two years.

  • The Nix expressions, which had long been languishing, have been brought up to date, and now make use of Nix overlays. The example now includes Nix expressions.

(2018-09-07) qtah-0.5.1

  • Fixed the build under Cabal 2.2.

(2018-09-06) qtah-cpp-0.5.1

  • Fixed the build under Cabal 2.2.

(2018-06-05) *-0.5.0

Thanks to Yuriy Syrovetskiy, Maxim Koltsov, and Paul Tsupikoff for contributions to this release.

  • New coverage of the Qt API, plus some version range fixes, totalling 10 new classes, 8 new enums, and 12 other classes expanded upon.

  • Fixed the invocation of qtah-listener-gen under Windows/MSYS (issue #25).

  • Fixed a linking issue with the use of Qtah data types via Template Haskell, such as in lenses (MR !13).

  • Changed qtah.cabal's "extra-libaries: qtah" to be specified dynamically by Setup.hs, since Setup.hs is needed to be able to find this library. This fixes an issue for cabal2nix (part of issue #27, MR !13).

(2018-01-27) *-0.4.0

  • [API change] Changed QAction's constructors so that "new" and "newWithText" don't require parent parameters, and have "WithParent" forms instead, like normal.

  • [API change] QImage::fromData*() and ::loadFromData*() were renamed to ...DataRaw*(), because there are QByteString versions of these functions now.

  • New classes, many of these thanks to Yuriy Syrovetskiy:

    • Core: QByteArray, QTextCodec
    • Gui: QIcon, QPixmap, QStandardItem{,Model}
    • Widgets: QSystemTrayIcon, QToolBar, QTreeView, QTreeWidget{,Item}

  • Added support for Cabal 2.0 and fixed building under macOS (thanks Yuriy).

  • qtah-listener-gen now checks that bash 4.1 or newer is available, as it requires features introduced in that version, and OS X doesn't ship a bash anywhere near that new (issue #19).

  • install.sh now defaults to Qt 5 when no QTAH_QT_FLAGS environment variable is set, instead of selecting the system default (which is still Qt 4 on some Linux distros). To get the old behaviour, set QTAH_QT_FLAGS to an empty value.

(2017-06-10) *-0.3.0, qtah-cpp-0.3.1

37 new classes and 10 new enums in this release!

  • Added support for the Qt graphics view framework thanks to @effectfully.

  • Began adding model-view classes.

  • Qtah now builds on OS X, with help from @biglambda.

  • qtah-examples now presents a launcher, so that we can have more than one example program.

  • Discovered that "ghc-options: -dynamic" can be used for executables and tests linking to Qtah in lieu of having to pass Cabal "--enable-executable-dynamic" on the command line (thanks again @effectfully).

  • qtah-cpp now uses all available CPUs to build by default, as "cabal build" does (this requires Cabal >=1.20).

  • Dependency bump to support directory-1.3 in GHC 8.0.2, and HUnit-1.6.

  • Support for Qt <4.8 has been dropped, since even Qt 4.8 is quite old now.

(2017-01-14) qtah-examples-0.2.1

  • Add a configure warning when qtah-examples is being built without dynamic executable linking, since without this hint, it's not obvious at all why a simple "cabal install qtah-examples" fails.

(2016-12-16) *-0.2.0, qtah-generator-0.2.1

  • Makes use of the new class/enum/bitspace prefix customization feature in Hoppy 0.3.0 to strip the repetitive class name off of enum value names, for enums contained within classes (issue #10). This is an API change from 0.1.*. (We also do this internally for class entities to simplify Qtah's generator.)

  • Fixed the conversion from QPoint and QPointF to their H* components mistakenly swapping the components.

  • Fixed build issue with Cabal 1.24 / GHC 8 (issue #14).

(2016-10-01) qtah-0.1.2, qtah-examples-0.1.2

  • Version bump to support binary-0.8.*.

(2016-08-04) qtah-generator-0.1.2, qtah-cpp-0.1.2, qtah-0.1.1

  • Fixes the custom install logic to install additional files into requested locations instead of the default system ones.

(2016-07-30) qtah-cpp-0.1.1, qtah-examples-0.1.1

  • Another fix for NixOS, qtah-cpp expected qtchooser to be available when a version preference was specified (issue #8).

  • The notepad example is a much more usable program now.

(2016-07-15) qtah-generator-0.1.1

  • Allow QTAH_QT=x to work when qtchooser is not available, to fix building with Nixpkgs (issue #8).

(2016-07-10) *-0.1.0

  • Initial release.