NARCISO, Rui wrote:
and when doing so create the sub-node "Folder1" if it does not exist within
"campaign" and put the dragged items under "folder1" (and not
"campaign" where they were dropped). How to do this ? Do I do this
in a dropEvent? In a dropEventAction ?
you could monitor the tree using QTreeView.rowsInserted and then
reparent dropped items as necessary.
Hi again,
I have tried but I am unable from redefining rowsInserted to reparent the items.
I am having problems combining the information QModelIndex used by rowsInserted
and the QAbstractModel automatically set-up behind the scenes by QTreeWidget
....
don't know what you're trying to do, but i had in mind something like this:
import sys
from PyQt4 import QtGui, QtCore
CAMPAIGN_TYPE, FOLDER_TYPE, CALC_TYPE = range(1001, 1004)
class TreeWidget(QtGui.QTreeWidget):
def __init__(self, parent=None):
QtGui.QTreeWidget.__init__(self, parent)
self.header().setHidden(True)
self.setSelectionMode(self.ExtendedSelection)
self.setDragDropMode(self.InternalMove)
self.setDragEnabled(True)
self.setDropIndicatorShown(True)
self.invisibleRootItem().setFlags(QtCore.Qt.NoItemFlags)
parent = TreeWidgetItem(self, CAMPAIGN_TYPE)
for i in xrange(1, 4):
TreeWidgetItem(parent, CALC_TYPE)
TreeWidgetItem(self, CAMPAIGN_TYPE)
TreeWidgetItem(self, CAMPAIGN_TYPE)
def rowsInserted(self, parent, start, end):
QtGui.QTreeWidget.rowsInserted(self, parent, start, end)
item = self.itemFromIndex(parent)
if (item is not None and
item.type() == CAMPAIGN_TYPE and
item.child(start).type() == CALC_TYPE):
child = item.takeChild(start)
if item.folder is None:
item.folder = TreeWidgetItem(item, FOLDER_TYPE)
item.folder.addChild(child)
class TreeWidgetItem(QtGui.QTreeWidgetItem):
def __init__(self, parent, type):
QtGui.QTreeWidgetItem.__init__(self, parent, type)
if type == CALC_TYPE:
text, flags = 'Calc', ~QtCore.Qt.ItemIsDropEnabled
else:
self.setChildIndicatorPolicy(self.ShowIndicator)
self.setExpanded(True)
if type == CAMPAIGN_TYPE:
text, flags = 'Campaign', ~QtCore.Qt.ItemIsDragEnabled
elif type == FOLDER_TYPE:
text, flags = 'Folder', ~QtCore.Qt.ItemIsDragEnabled
self.setText(0, text)
self.setFlags(self.flags() & flags)
self.folder = None
if __name__ == "__main__":
app = QtGui.QApplication(sys.argv)
tree = TreeWidget()
tree.resize(200, 300)
tree.move(300, 300)
tree.show()
sys.exit(app.exec_())
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