#!/usr/bin/env python

"""***************************************************************************
**
** Copyright (C) 2005-2005 Trolltech AS. All rights reserved.
**
** This file is part of the example classes of the Qt Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of
** this file.  Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
** http://www.trolltech.com/products/qt/opensource.html
**
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://www.trolltech.com/products/qt/licensing.html or contact the
** sales department at sales@trolltech.com.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
***************************************************************************"""

"""
    delegate.cpp

    A delegate that allows the user to change integer values from the model
    using a spin box widget.
"""

import sys
from PyQt4 import QtCore, QtGui


class SpinBoxDelegate(QtGui.QItemDelegate):
    def __init__(self, parent = None):
        QtGui.QItemDelegate.__init__(self, parent)

    def createEditor(self, parent, option, index):
        editor = QtGui.QSpinBox(parent)
        editor.setMinimum(0)
        editor.setMaximum(100)
        editor.installEventFilter(self)

        return editor

    def setEditorData(self, spinBox, index):
        value, ok = index.model().data(index, QtCore.Qt.DisplayRole).toInt()

        spinBox.setValue(value)

    def setModelData(self, spinBox, model, index):
        spinBox.interpretText()
        value = spinBox.value()

        model.setData(index, QtCore.QVariant(value))

    def updateEditorGeometry(self, editor, option, index):
        editor.setGeometry(option.rect)


if __name__ == "__main__":
    app = QtGui.QApplication(sys.argv)

    model = QtGui.QStandardItemModel(4, 2)
    tableView = QtGui.QTableView()
    tableView.setModel(model)

    delegate = SpinBoxDelegate()
    tableView.setItemDelegate(delegate)

    for row in range(4):
        for column in range(2):
            index = model.index(row, column, QtCore.QModelIndex())
            model.setData(index, QtCore.QVariant((row+1) * (column+1)))

    tableView.setWindowTitle("Spin Box Delegate")
    tableView.show()
    sys.exit(app.exec_())