Qt-contributors-summit-2014-Qt-for-WinRT: Difference between revisions

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===Better collaboration with other ports===


* See coordination meta-task at https://bugreports.qt.io/browse/QTBUG-36015
* A cross-platform native webview <span class="caps">API</span> may be created in the future; WinRT should be able to provide the <span class="caps">API</span> as well.
* <span class="caps">QPA</span> callbacks for Android intents may be needed – WinRT has various launching techniques as well, and includes an <span class="caps">IPC</span> mechanism for transferring data from one app to another. We should agree on some kind of <span class="caps">API</span> for this.
* Text composition <span class="caps">API</span>s may need to be improved to support Android/iOS/WinRT in a similar manner
* Text context callbacks may also be needed, which e.g. change the Enter key on the virtual keyboard depending on what the action is.
===<span class="caps">XAML</span> integration===
* By rendering Qt into a <span class="caps">XAML</span> layer, we can integrate with the native controls which exist on <span class="caps">XAML</span> layers. This may be useful for a native webview as well as various platform controls such as the command bar. A proof-of-concept is available at https://codereview.qt.io/86264
===Multimedia===
* Camera, Video, Audio, Radio are all possible to support
* Video texture handles are easily accessible, but we might also be able to use <span class="caps">XAML</span> video playback for the high-level controls
===Client-side composition===
* We should investigate reusing the <span class="caps">EGLFS</span> compositor to improve the raster window situation
===Qt Quick Controls===
* Some native styling has been started for 5.4 – should be relatively simple due to the simplistic style of WinRT/WinPhone
* Native dialogs and simulated native popups should be written though
===Qt Creator===
* We should contribute to a cross-platform manifest editor (see http://qt.io/groups/qt-contributors-summit-2014/wiki/QtCS14CrossPlatformManifestXmlInfoPlist)
* Implementing a debugging for msvsmon would be hard but possible through some observation of the communication between VS and msvsmon. This would allow Creator to debug Windows (including WinRT/WinPhone) apps from any environment.
===Shader precompilation===
* We could cache/precompile shaders using the scene graph adaptation like Jolla already does. Someone should investigate this.
===<span class="caps">SSL</span>/networking===
* We should follow the lead of the new iOS backend (https://qt.gitorious.org/qt/sharkys-qtbase/source/7745df2a61447acf7e7debc0786ef80a1ff7bb29:src/network/ssl) and create <span class="caps">PIMPL</span>s for WinRT.
===Code sharing with desktop Windows 8===
* Most of the WinRT <span class="caps">API</span> runs on desktop
* No urgent places to do this, apart from possibly sensors (https://bugreports.qt.io/browse/QTBUG-39590)
===Solving the test data problem===
* Testlib data is usually not in the application package
* One option is to use <span class="caps">QRC</span>
* Another option is to use a framework bundle of the entire qt source tree, and depend on that (Android may use the same approach)

Revision as of 14:11, 25 February 2015

Better collaboration with other ports

  • See coordination meta-task at https://bugreports.qt.io/browse/QTBUG-36015
  • A cross-platform native webview API may be created in the future; WinRT should be able to provide the API as well.
  • QPA callbacks for Android intents may be needed – WinRT has various launching techniques as well, and includes an IPC mechanism for transferring data from one app to another. We should agree on some kind of API for this.
  • Text composition APIs may need to be improved to support Android/iOS/WinRT in a similar manner
  • Text context callbacks may also be needed, which e.g. change the Enter key on the virtual keyboard depending on what the action is.

XAML integration

  • By rendering Qt into a XAML layer, we can integrate with the native controls which exist on XAML layers. This may be useful for a native webview as well as various platform controls such as the command bar. A proof-of-concept is available at https://codereview.qt.io/86264

Multimedia

  • Camera, Video, Audio, Radio are all possible to support
  • Video texture handles are easily accessible, but we might also be able to use XAML video playback for the high-level controls

Client-side composition

  • We should investigate reusing the EGLFS compositor to improve the raster window situation

Qt Quick Controls

  • Some native styling has been started for 5.4 – should be relatively simple due to the simplistic style of WinRT/WinPhone
  • Native dialogs and simulated native popups should be written though

Qt Creator

Shader precompilation

  • We could cache/precompile shaders using the scene graph adaptation like Jolla already does. Someone should investigate this.

SSL/networking

Code sharing with desktop Windows 8

Solving the test data problem

  • Testlib data is usually not in the application package
  • One option is to use QRC
  • Another option is to use a framework bundle of the entire qt source tree, and depend on that (Android may use the same approach)
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