An ObjectListView demo with moveable items

olv_move_items.py

import wx
from ObjectListView import ObjectListView, ColumnDefn


class Book(object):
    """
    Model of the Book object

    Contains the following attributes:
    'ISBN', 'Author', 'Manufacturer', 'Title'
    """
    
    def __init__(self, title, author, isbn, mfg):
        self.isbn = isbn
        self.author = author
        self.mfg = mfg
        self.title = title
        
    def __repr__(self):
        return "<Book: {title}>".format(title=self.title)


class MainPanel(wx.Panel):
    
    def __init__(self, parent):
        wx.Panel.__init__(self, parent=parent, id=wx.ID_ANY)
        self.current_selection = None
        self.products = [Book("wxPython in Action", "Robin Dunn",
                              "1932394621", "Manning"),
                         Book("Hello World", "Warren and Carter Sande",
                              "1933988495", "Manning"),
                         Book("Core Python Programming", "Wesley Chun",
                             "0132269937", "Prentice Hall"),
                         Book("Python Programming for the Absolute Beginner",
                              "Michael Dawson", "1598631128",
                              "Course Technology"),
                         Book("Learning Python", "Mark Lutz",
                              "0596513984", "O'Reilly")
                         ]
        
        self.dataOlv = ObjectListView(self, wx.ID_ANY, 
                                      style=wx.LC_REPORT|wx.SUNKEN_BORDER)
        self.setBooks()

        # Allow the cell values to be edited when double-clicked
        self.dataOlv.cellEditMode = ObjectListView.CELLEDIT_SINGLECLICK

        # create up and down buttons
        up_btn = wx.Button(self, wx.ID_ANY, "Up")
        up_btn.Bind(wx.EVT_BUTTON, self.move_up)
        
        down_btn = wx.Button(self, wx.ID_ANY, "Down")
        down_btn.Bind(wx.EVT_BUTTON, self.move_down)

        # Create some sizers
        mainSizer = wx.BoxSizer(wx.VERTICAL)

        mainSizer.Add(self.dataOlv, 1, wx.ALL|wx.EXPAND, 5)
        mainSizer.Add(up_btn, 0, wx.ALL|wx.CENTER, 5)
        mainSizer.Add(down_btn, 0, wx.ALL|wx.CENTER, 5)
        self.SetSizer(mainSizer)
        
    def move_up(self, event):
        """
        Move an item up the list
        """        
        self.current_selection = self.dataOlv.GetSelectedObject()
        data = self.dataOlv.GetObjects()
        if self.current_selection:
            index = data.index(self.current_selection)
            if index > 0:
                new_index = index - 1
            else:
                new_index = len(data)-1
            data.insert(new_index, data.pop(index))
            self.products = data
            self.setBooks()
            self.dataOlv.Select(new_index)
    
    def move_down(self, event):
        """
        Move an item down the list
        """
        self.current_selection = self.dataOlv.GetSelectedObject()
        data = self.dataOlv.GetObjects()
        if self.current_selection:
            index = data.index(self.current_selection)
            if index < len(data) - 1:
                new_index = index + 1
            else:
                new_index = 0
            data.insert(new_index, data.pop(index))
            self.products = data
            self.setBooks()
            self.dataOlv.Select(new_index)
    
    def setBooks(self):
        self.dataOlv.SetColumns([
            ColumnDefn("Title", "left", 220, "title"),
            ColumnDefn("Author", "left", 200, "author"),
            ColumnDefn("ISBN", "right", 100, "isbn"),
            ColumnDefn("Mfg", "left", 180, "mfg")
        ])

        self.dataOlv.SetObjects(self.products)


class MainFrame(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self, parent=None, id=wx.ID_ANY, 
                          title="ObjectListView Demo", size=(800,600))
        panel = MainPanel(self)
        self.Show()


if __name__ == "__main__":
    app = wx.App(False)
    frame = MainFrame()
    app.MainLoop()