On 4/10/06, Bert Rodiers <[EMAIL PROTECTED]> wrote:
> On 4/9/06, Andreas Pakulat <[EMAIL PROTECTED]> wrote:
>
> > Provide a minimal compilable example that demonstrates your problem. We
> > can't tell what's going on from the snippet above, at least I can't.
> >
>
> Ok, I'll do that (tomorrow). I'll have to reduce the amount of code.
In attachment an example for the first problem (the rest will
follow...). The tree should be filled in when I push the button. If I
put a breakpoint in the __init__ of class TreeModel it works,
otherwise it doesn't.
Bert
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'untitled.ui'
#
# Created: Mon Apr 10 12:27:30 2006
# by: PyQt4 UI code generator vsnapshot-20060407
#
# WARNING! All changes made in this file will be lost!
import sys
from PyQt4 import QtCore, QtGui
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(QtCore.QSize(QtCore.QRect(0,0,800,600).size()).expandedTo(MainWindow.minimumSizeHint()))
self.centralwidget = QtGui.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.treeView = QtGui.QTreeView(self.centralwidget)
self.treeView.setGeometry(QtCore.QRect(170,180,120,80))
self.treeView.setObjectName("treeView")
self.pushButton = QtGui.QPushButton(self.centralwidget)
self.pushButton.setGeometry(QtCore.QRect(320,80,75,24))
self.pushButton.setObjectName("pushButton")
MainWindow.setCentralWidget(self.centralwidget)
self.statusbar = QtGui.QStatusBar(MainWindow)
self.statusbar.setGeometry(QtCore.QRect(0,581,800,19))
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
QtCore.QObject.connect(self.pushButton,QtCore.SIGNAL("clicked()"),self.test)
def tr(self, string):
return QtGui.QApplication.translate("MainWindow", string, None,
QtGui.QApplication.UnicodeUTF8)
def retranslateUi(self, MainWindow):
MainWindow.setWindowTitle(self.tr("MainWindow"))
self.pushButton.setText(self.tr("PushButton"))
def test(self):
model = TreeModel()
self.treeView.setModel(model)
class TreeItem:
def __init__(self, label, parent = None):
self.parentItem = parent
self.children = []
self.label = label
def child(self, row):
return self.children[row]
def childCount(self):
return len(self.children)
def displayLabel(self):
return self.label
def parent(self):
return self.parentItem
def row(self):
if self.parentItem:
return self.parentItem.children.index(self)
return 0
def dictionaryOfAllTreeElements(self):
dictionary = {}
for child in self.children:
dictionary[id(child)] = child
dictionary.update(child.dictionaryOfAllTreeElements())
return dictionary
def addChild(self, label):
self.children.append(TreeItem(label, self))
class TreeModel(QtCore.QAbstractItemModel):
def __init__(self, parent=None):
QtCore.QAbstractItemModel.__init__(self, parent)
self.rootItem = TreeItem('title')
self.rootItem.addChild('1')
self.rootItem.addChild('2')
self.rootItem.children[0].addChild('3')
self.rootItem.children[0].addChild('4')
self.object_dict = self.rootItem.dictionaryOfAllTreeElements()
def columnCount(self, parent):
return 1
def data(self, index, role):
if not index.isValid():
return QtCore.QVariant()
if role != QtCore.Qt.DisplayRole:
return QtCore.QVariant()
item = self.object_dict[index.internalId()]
label = item.displayLabel()
assert(index.column() == 0)
return QtCore.QVariant(label)
def flags(self, index):
if not index.isValid():
return QtCore.Qt.ItemIsEnabled
return QtCore.Qt.ItemIsEnabled | QtCore.Qt.ItemIsSelectable
def index(self, row, column, parent):
if not parent.isValid():
parentItem = self.rootItem
else:
parentItem = self.object_dict[parent.internalId()]
childItem = parentItem.child(row)
if childItem:
return self.createIndex(row, column, id(childItem))
else:
return QtCore.QModelIndex()
def parent(self, index):
if not index.isValid():
return QtCore.QModelIndex()
childItem = self.object_dict[index.internalId()]
parentItem = childItem.parent()
if parentItem == self.rootItem:
return QtCore.QModelIndex()
return self.createIndex(parentItem.row(), 0, id(parentItem))
def rowCount(self, parent):
if not parent.isValid():
parentItem = self.rootItem
else:
parentItem = self.object_dict[parent.internalId()]
return parentItem.childCount()
if __name__ == "__main__":
app = QtGui.QApplication(sys.argv)
mainWindow = QtGui.QMainWindow()
windowClass = Ui_MainWindow()
windowClass.setupUi(mainWindow)
app.setActiveWindow(mainWindow)
mainWindow.show()
app.exec_()
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