[PyQt] QDirmodel - Removing a directory and it's descendents..

[detlev]

Hi,

how about using a QSortFilterProxy model to filter the excluded ones?

Detlev

On Samstag, 16. Januar 2010, Jebagnana Das wrote:
> Hello all,
>         Greetings.. After a spending a long time for googling i found the
> way to list the contents of a particular directory. Thanks to QDirModel.
> 
>        My aim here is to allow the user to exclude specific directories
> within the chosen directory.. After adding a particular directory to the
> exclusion list(on the right side)the selected directory and it's
>  descendents should be removed(or hidden)from the tree view so that the
>  user is not allowed to select the same folder again..
> 
>       Given here the minimal example needed for my app.. In this example
> when the user presses add to exclude list push button the folder is added
>  to the exclude folders listwidget..
> 
> from PyQt4 import QtCore, QtGui
> 
> class Ui_Dialog(QtGui.QDialog):
> 
>     def __init__(self,parent=None):
>         QtGui.QDialog.__init__(self,parent)
>         self.resize(600, 500)
> 
>         self.model = QtGui.QDirModel()
>         self.tree = QtGui.QTreeView(self)
>         self.tree.setModel(self.model)
>         self.model.setFilter(QtCore.QDir.Dirs|QtCore.QDir.NoDotAndDotDot)
>         self.tree.setSortingEnabled(True)
> 
> self.tree.setRootIndex(self.model.index("/home/jebagnanadasa/Python-3.1.1")
> )
> 
>         self.tree.hideColumn(1)
>         self.tree.setWindowTitle("Dir View")
>         self.tree.resize(400, 480)
>         self.tree.setColumnWidth(0,150)
>         self.tree.show()
> 
>         self.pushButton = QtGui.QPushButton(self)
>         self.pushButton.setGeometry(QtCore.QRect(420, 30, 151, 28))
>         self.listWidget = QtGui.QListWidget(self)
>         self.listWidget.setGeometry(QtCore.QRect(410, 80, 171, 231))
> 
>         QtCore.QObject.connect(self.tree,
> QtCore.SIGNAL("clicked(QModelIndex)"), self.test)
> 
> QtCore.QObject.connect(self.pushButton,QtCore.SIGNAL('clicked()'),self.addT
> oList) QtCore.QMetaObject.connectSlotsByName(self)
> 
>         self.setWindowTitle(QtGui.QApplication.translate("Dialog",
>  "Dialog", None, QtGui.QApplication.UnicodeUTF8))
>         self.pushButton.setText(QtGui.QApplication.translate("Dialog", "Add
> to Exclude List", None, QtGui.QApplication.UnicodeUTF8))
> 
>     def test(self,index):
> 
>         if self.model.data(index.parent())=="jebagnanadasa":
>             self.selectedDirectoryPath=self.model.data(index)
>             print(self.selectedDirectoryPath)
>         else:
>             dirHierarchy=[]
>             dirHierarchy.insert(0,self.model.data(index))
>             while (self.model.data(index.parent())!="jebagnanadasa"):
>                 index=index.parent()
>                 dirHierarchy.insert(0,self.model.data(index))
>             self.selectedDirectoryPath="/".join(dirHierarchy)
>             print(self.selectedDirectoryPath)
> 
>         #self.model.removeRow(0,index)
> 
>     def addToList(self):
>         self.listWidget.addItem(self.selectedDirectoryPath)
> 
> 
> if __name__ == "__main__":
>     import sys
>     app = QtGui.QApplication(sys.argv)
>     ui = Ui_Dialog()
>     ui.show()
>     sys.exit(app.exec_())
> 
> See the screenshot also..
> 
> [image:
> ?ui=2&view=att&th=12637fd44b798078&attid=0.1&disp=attd&realattid=ii_12637fd
> 44b798078&zw]
> 
> Is there a way that i can make the excluded directories to be ignored when
> displaying the contents of the directory on consecutive startup(since it
>  was already on the exclusion list)?
> 
> Any help would be much appreciated.. Thanks..
> 
> P.S: remove() and rmdir() is not recommended since it deletes the
> directories entirely from the file System!
> 


-- 
Detlev Offenbach
detlev at die-offenbachs.de