Building qwt with qt5 alpha

[alizadeh91]

hi all..
Is it possible to build qwt with qt5?? I've done this before but there is some error with QPrinter.h . In the qt5 QPrinter.h have some changes in relative to earlier versions.

Thanks..

[Uwe]

I once built Qwt from SVN trunk with Qt5 alpha successfully. For the Qwt 6.0 and 5.2 branches I have not decided what to do - not until at least a Qt 5 beta with a stable API is available.

But I wouldn't expect too much from using Qwt and Qt 5.0 - until widgets and quick stuff can coexist ( planned maybe for Qt 5.1 ) I don't see many good reasons for upgrading an application using Qwt to Qt 5.

Unfortunately it will need some time to reorganize the Qwt plot framework, so that it can be used optionally without widgets. But this time please don't blame me for all the related API incompatibilities ...

Uwe

[alizadeh91]

Thanks Uwe...
Actually because of qml's opengl rendering(in qt5) i want to use qt5. In the other hand i need plotting(so i choose qwt).

What version of qwt did you build with qt5 from SVN???

Thanks for your reply.

[Uwe]

Actually because of qml's opengl rendering(in qt5) i want to use qt5. In the other hand i need plotting(so i choose qwt).

Impossible due to the design of Qt 5.0 - beside the QML stuff and the plot widget are located in different top level widgets. Coexistence is maybe possible with Qt 5.1.

The same limitation is for all widgets ( Qt widgets too ! ) and as there are no desktop components available yet for Qt Quick 2.0 better check your options before you start.

Uwe

[alizadeh91]

I've found a class with name: "WindowWidget" in internet which integrate qml in qwidget easily!!! its performance is excellent!!!

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Added after 8 minutes:

I've uploaded them

[Uwe]

I've found a class with name: "WindowWidget" in internet which integrate qml in qwidget easily!!! its performance is excellent!!!

Probably for Qt4.

Qt/Quick 1 is simply a layer on top of widgets, while Qt/Quick 2 has a completely different graphic backend ( scene graph ), that is incompatible with that one used for widgets.

Uwe

[alizadeh91]

No I've compiled it with qt5 and it works believe me it works!! it embedds QWindow in QWidget

[Uwe]

No I've compiled it with qt5 and it works believe me it works!! it embedds QWindow in QWidget

And rendering is done by the scene graph - what was your reason for using Qt 5 ?
What you are looking for is the other way round: how to embed QWidget into a scene graph based window.

Uwe

[alizadeh91]

Yes the embedded qwindow is rendering with scene graph. my reason for using Qt 5 is pretty clear (because it has scene graph)

You didn't tell me which version of qwt you built with qt5 from SVN?

[Uwe]

You didn't tell me which version of qwt you built with qt5 from SVN?

SVN trunk ( don't ask me for the version number ). And I didn't update for any modifications that happened in Qt5 since the alpha.

Uwe

PS: the version in trunk offers the option of using an OpenGL plot canvas.