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List:       pykde
Subject:    [PyKDE] QListViewItems
From:       Peter Osborne <pete () bookware3000 ! ca>
Date:       2002-09-20 23:07:16
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Hello All,

I was wondering if someone could enlighten me on why Qt is doing this.

I have reimplemented QListViewItem to allow me to change font colors and also 
to allow me to have Cell 1 of my ListView overwrite Cell 2 when needed. 
Here's my paintCell method.
________________________________________________________________
def paintCell(self,qpainter,cg,col,width,align):
        qpainter.setFont(self.font)
        if self.overwrite_columns:
                if col == 1:
                        width += 90
                elif col == 2:
                        return
        
QListViewItem.paintCell(self,qpainter,self.pal.active(),col,width,align)
________________________________________________________________

If overwrite_columns is true, it tells column one that it is 90 pixels wider 
and ignores column 2.

The problem is, when I add an item to my QListView, it truncates the last 90 
pixels but if I select a record or scroll, it renders properly.

Does anyone know if QListView or QListViewItem does some behind the scenes 
erasing cells?

Thanks,
-Pete

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