Super(ShaderDefTreeView, self). So the new code looks like this: class ShaderDefTreeView(QtGui.QTreeView): Another popular alternative is the Tkinter library. With the help of PyQt5 we can create modern, portable and stylish GUI’s for our Python programs. It is the result of combining the versatile Python language with the powerful Qt library. I don't know why, but some (rare) examples on the web suggested that this might be the caseĢ) I had to override the setModel method of the QTreeView such that it calls the superclass' setModel method and then makes the connections afterwards. PyQt is actually derived from the famous cross-platform GUI library, Qt. In order to make it work I had to make two changes:ġ) The emitting object had to be changed to be the QTreeView's selectionModel. Since I was making the connections in the init but only setting the model for this QTreeView later, there was no valid selectionModel in place. #self.model().selection_changed(newSelection) nnect(self, QtCore.SIGNAL("expanded(const QModelIndex &)"),ĭef store_current_selection(self, newSelection, oldSelection): nnect(self, QtCore.SIGNAL("collapsed(const QModelIndex &)"), learn Python Tree view widgets and Tree view scrollbar in Tkinter-Python. Qt's model/view architecture provides a standard way for views to manipulate information in a data source, using an abstract model of the data to simplify and standardize the way it is accessed. Protobuf in Python PyQt library in Python How to Prettify Data Structures. nnect(self, QtCore.SIGNAL("activated(const QModelIndex &)"), PyQt TreeView model from YAML file Qt World Summit: Register Today UNSOLVED PyQt TreeView model from YAML file als0052, 11:38 Im trying to write a GUI editor for a tree data structure in the YAML format and Im having some issues with creating the model for PyQt. The Simple Tree Model example shows how to use a hierarchical model with Qt's standard view classes. QtCore.SIGNAL("selectionChanged(QItemSelection&, QItemSelection&)"), #whenever the selection changes, let the data model know Super(ShaderDefTreeView, self)._init_(parent) Overrides the QTreeView to handle keypress events.Ĭonstructor for the ShaderDefTreeView class. from PyQt4 import QtGuiĬlass ShaderDefTreeView(QtGui.QTreeView): Could someone tell me what I am doing wrong? Thanks. In the following code example, I successfully connect to the expanded and collapsed signals, but not to the selectionChanged or activated signals. But now I cannot get similar code to work. I have done this in the past (for a QTableView) and was successful. I am trying to connect to the selectionChanged signal of a QTreeView using PyQt.
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