Re: [PyQt] issue with QPainter.drawPolyline and list of QPoints

2012-02-01 Thread Hans-Peter Jansen 
On Wednesday 01 February 2012, 09:57:35 Phil Thompson wrote:
> On Wed, 1 Feb 2012 01:25:57 +0100, "Hans-Peter Jansen"
> 
>
> wrote:
> > Hi Phil,
> >
> > shouldn't this work:
> >
> > from PyQt4 import QtCore, QtGui
> > app = QtGui.QApplication([])
> > pixmap = QtGui.QPixmap(16, 16)
> > painter = QtGui.QPainter(pixmap)
> > plist = [QtCore.QPoint(0, 15), QtCore.QPoint(0, 0),
> > QtCore.QPoint(15,
>
> 0)]
>
> > painter.drawPolyline(plist)
>
> No, try...
>
>   painter.drawPolyline(*plist)

Of course, silly me.

Thanks, Phil.

Pete
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Re: [PyQt] issue with QPainter.drawPolyline and list of QPoints

2012-02-01 Thread Phil Thompson 
On Wed, 1 Feb 2012 01:25:57 +0100, "Hans-Peter Jansen" 
wrote:
> Hi Phil,
> 
> shouldn't this work:
> 
> from PyQt4 import QtCore, QtGui
> app = QtGui.QApplication([])
> pixmap = QtGui.QPixmap(16, 16)
> painter = QtGui.QPainter(pixmap)
> plist = [QtCore.QPoint(0, 15), QtCore.QPoint(0, 0), QtCore.QPoint(15,
0)]
> painter.drawPolyline(plist)

No, try...

  painter.drawPolyline(*plist)

Phil
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[PyQt] issue with QPainter.drawPolyline and list of QPoints

2012-01-31 Thread Hans-Peter Jansen 
Hi Phil,

shouldn't this work:

from PyQt4 import QtCore, QtGui
app = QtGui.QApplication([])
pixmap = QtGui.QPixmap(16, 16)
painter = QtGui.QPainter(pixmap)
plist = [QtCore.QPoint(0, 15), QtCore.QPoint(0, 0), QtCore.QPoint(15, 0)]
painter.drawPolyline(plist)

With PyQt 4.9, this results in:

TypeError: arguments did not match any overloaded call:
  QPainter.drawPolyline(QPointF, ...): argument 1 has unexpected type 'list'
  QPainter.drawPolyline(QPolygonF): argument 1 has unexpected type 'list'
  QPainter.drawPolyline(QPoint, ...): argument 1 has unexpected type 'list'
  QPainter.drawPolyline(QPolygon): argument 1 has unexpected type 'list'
 
QPaintDevice: Cannot destroy paint device that is being painted
Speicherzugriffsfehler

although you provide a %MethodCode handler for the list of QPoints case.
Ref: line 354 in sip/QtGui/qpainter.sip

Hmm,
Pete
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