QwtPlot - promote to custom widget

[Carlton]

I had the same problem. I just use a QWidget item in Qt Designer instead of a QwtPlot item. I then promote the QWidget item to my custom QwtPlot item. Works great.

Apologies for adding to this old thread, Could someone provide an example of the correct syntax to promote the QWidget to my custom QwtPlot class?

[FelixB]

Apologies for adding to this old thread, Could someone provide an example of the correct syntax to promote the QWidget to my custom QwtPlot class?

thats easy:

* in the qtdesigner, put a QWidget as placeholder on your widget (can be any class derived by qwidget, I usually take a QListView)
* rightclick on this QWidget you'd like to promote
* in the contextmenu, choose "promote to..."
* fill in your custom class name (e.g. "MyCustomQwtPlot") and the header file your class is located in (e.g. "MyCustomQwtPlot.h")
* press enter and the "Promote" button gets enabled
* click this button and everything should work

[gbruti]

i have done this in following way:

-manually edit *.ui file
-find tag customwidgets
-add sub tag
<customwidget>
<class>QwtPlotEx</class>
<extends>QwtPlot</extends>
<header>qwt_plotex.h</header>
</customwidget>
-save
-open this file in "QT designer"
-promote QwtPlot to QwtPlotEx !!
-create qwt_plotex.h and qwt_plotex.cpp