[PyQt] Styling an QMdiArea widget

[Sarah Mount]

On Sun, Apr 17, 2011 at 16:48, Vincent Vande Vyvre
<vincent.vandevyvre at swing.be> wrote:
> Le 17/04/11 16:36, Sarah Mount a écrit :
>
> On Sun, Apr 17, 2011 at 15:28, Vincent Vande Vyvre
> <vincent.vandevyvre at swing.be> wrote:
>
> Le 17/04/11 15:17, Sarah Mount a écrit :
>
> Hi everyone,
>
> I have a main application window that I want to style with a style
> sheet like this:
>
>
> #mywidget {
>     background : white;
>     background-image : url(:/images/images/EfDChancoComposite.jpg);
>     background-repeat : no-repeat;
> }
>
>
> When the project is created, the widget that I want to apply the CSS
> to becomes an MDI area, so presumably the styling now needs to apply
> to the MDI area, not the original widget, like this:
>
>
> class MyMainWindow(QtGui.QMainWindow, Ui_MainWindow):
>     def __init__(self, parent=None):
>         QtGui.QMainWindow.__init__(self)
>         self.setupUi(self)
>         self.mdi = QtGui.QMdiArea()
>         self.mdi.setStyleSheet("QMdiArea { background : white;
> background-image : url(:/images/images/EfDChancoComposite.jpg);
> background-repeat : no-repeat; }")
>         self.setCentralWidget(self.mdi)
>
>
> ...but that doesn't work! Is this because QMdiArea widgets can't be
> styled with CSS, and if so, is it possible to use a QBrush to do this
> (including the no-repeat directive)? Or, have I just misunderstood the
> API?
>
>
> Many thanks,
>
> Sarah
>
> Hi,
>
> You can use setBackground()
>
>         self.brush = QtGui.QBrush(QtGui.QPixmap("view.jpg"))
>         self.mdi.setBackground(self.brush)
>
> but reimplement sizeEvent() for rescale the pixmap
>
> Thanks, tried that code and the image doesn't appear :( There's no
> traceback so it's difficult to figure out why...
>
> Sarah
>
> Strange, if I use this code that works:
>
> class MyMainWindow(QtGui.QMainWindow):
>     def __init__(self, parent=None):
>         QtGui.QMainWindow.__init__(self)
>         self.mdi = QtGui.QMdiArea()
>         self.setCentralWidget(self.mdi)
>         pix = QtGui.QPixmap("img.jpg")
>         self.brush = QtGui.QBrush(pix)
>         self.mdi.setBackground(self.brush)
>

Thanks, you and David were both right, the error was an incorrect path
for the JPG. However, what I was after was to have one image appear in
the background, and not to have the image tiled. This is possible
using a style sheet, but I'm not sure a) if it's possible using a
brush (your code comes out with the image tiled) or b) whether it's
possible to use a style sheet, as my code for that didn't work!

Any advice greatly appreciated.

Sarah


-- 
Sarah Mount, Senior Lecturer, University of Wolverhampton
website:  http://www.snim2.org/
twitter: @snim2