[solved] QGraphicsView to fill main window with QT Designer

[gkroeger]

Hi:

I'm new here, so forgive me if this is answered already...

I am trying to create a main window filled with a QGraphicsView that expands and contracts with the window.

I can do this programmatically in the main window constructor as follows:

@theGraphicsView = new QGraphicsView(this);
setCentralWidget(theGraphicsView);@

I can't seem to replicate this using QT Designer?

When I drag a QGraphicsView into the main window, it adds it to the CentralWidget... but it doesn't change size with the window. I have tried various settings of maximum sizes and sizePolicy. I'm probably missing something really obvious, but I am stumped.

Thanks for any suggestions.

Glenn

[DenisKormalev]

You should add it into layout. In QtDesigner you can put QGraphicsView into central widget , than right click on it and layout it horizontally or vertically.

[gkroeger]

Denis:

Thanks... I thought that was needed... but all of the layout options are grayed out, both in the popup menu and in the tools->form editor menus?

Glenn

[gkroeger]

Denis et al:

Got it! I added a grid layout, then added the Graphics View and all is well.

Thanks.

[gkroeger]

Well, maybe not... the Graphics View fills the layout, but the layout doesn't fill the central widget when the window is resized.

[DenisKormalev]

Try next steps:
Put GraphicsView into centralWidget
Right click on empty space in centralWidget
Layout
Vertically

[gkroeger]

That did it! Thanks. I had tried to set the layout on the central widget prior to adding the graphics view, but menus aren't active until at least one widget is added.

Thanks again.
Glenn