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List:       pykde
Subject:    [PyKDE] [PyQT]problem updating a QTreeView after model changes
From:       "Oscar Cossu" <zerozerosette () gmail ! com>
Date:       2006-08-29 16:31:30
Message-ID: 45b429340608290931v378f4474h4af1f50af5946da4 () mail ! gmail ! com
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Hy all.
I use a QTreeView to show a QDomDocument object. Using drag & drop i makes
change to the DOM three.

The issue: when i send the signal to view to update, data goes corrupted,
but only in the view.

This is the code:

def dropEvent(self, event):
        oggetto=event.source()
        parent=oggetto.indexAt(event.pos()).parent()  ## this manage the
ModelIndex of target when drop

        NomeDest=parent.child(oggetto.indexAt(event.pos
()).row(),0).data().toString()
        DestId=self.getValoreCaratteristica(parent.child(oggetto.indexAt(
event.pos()).row(),1).data().toString(),"id") ## a function that parse the
node to find the specified Attributes (in this case "id")

        DragTargetElem=self.findNodeByTagNameID(NomeDest,DestId) ## this
return the QDomNode specified by his name and his id
        targetParent=DragTargetElem.parentNode()
        targetParent.insertBefore(self.view.startDragModelInd,
DragTargetElem) ##change the Dom layout

        oggetto.model().emit(QtCore.SIGNAL("layoutChanged()"))  ## HERE,
work but treeview display garbage text

        print DragTargetElem.ownerDocument().toString()     ##  used to
verify the Dom consistence



What error? treeview display  a Dom without the dragged/dropped node, also
the other node is doubled.

[Attachment #5 (text/html)]

Hy all.<br>I use a QTreeView to show a QDomDocument object. Using drag &amp; drop i \
makes change to the DOM three.<br><br>The issue: when i send the signal to view to \
update, data goes corrupted, but only in the view. <br> <br>This is the \
code:<br><br>def dropEvent(self, \
event):<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \
oggetto=event.source()<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \
parent=oggetto.indexAt(event.pos()).parent()&nbsp; ## this manage the ModelIndex of \
target when drop<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; NomeDest= \
parent.child(oggetto.indexAt(event.pos()).row(),0).data().toString()<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \
DestId=self.getValoreCaratteristica(parent.child(oggetto.indexAt(event.pos()).row(),1).data().toString(),&quot;id&quot;) \
## a function that parse the node to find the  <span \
onclick="dr4sdgryt(event)">specified Attributes (in this case \
&quot;id&quot;)</span><br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \
DragTargetElem=self.findNodeByTagNameID(NomeDest,DestId) ## this return the QDomNode \
specified by his name and his id <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \
targetParent=DragTargetElem.parentNode()<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \
targetParent.insertBefore(self.view.startDragModelInd, DragTargetElem) ##change the \
Dom layout<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \
oggetto.model().emit(QtCore.SIGNAL(&quot;layoutChanged()&quot;))&nbsp; ## HERE, work \
but treeview  <span onclick="dr4sdgryt(event)">display garbage text</span><br>&nbsp;  \
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; print \
DragTargetElem.ownerDocument().toString()&nbsp;&nbsp;&nbsp;&nbsp; ##&nbsp; used to \
verify the Dom <span onclick="dr4sdgryt(event)">consistence<br><br><br><br>What \
error? treeview  </span><span onclick="dr4sdgryt(event)">display</span><span \
onclick="dr4sdgryt(event)">&nbsp; a Dom without the dragged/dropped node, also the \
other node is doubled.<br></span>



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