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help with treeview property setting

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help with treeview property setting

 
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  #1
Nov 5th, 2006
I am trying to get to grips with treeviews in pygtk/gtk and am stuck on setting the alignment of the columns.

No matter what I try I cannot change the alignmenthttp://ubuntuforums.org/images/smilies/eusa_wall.gif

Here is the code I found on the web which I am using to change different lines to see the effect and thus learn how they work. However I added the line self.cell1.set_property('alignment', pango.ALIGN_CENTER) and it makes no difference. I have tried right align too with no joy!

Can anyone help me please?

Python Syntax (Toggle Plain Text) 
  1. def __init__(self):
  2.  
  3.         # Create a new window
  4.  
  5.         self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)
  6.  
  7.         self.window.set_title("TreeViewColumn Example")
  8.  
  9.         self.window.set_size_request(400, 200)
  10.  
  11.         self.window.connect("delete_event", self.delete_event)
  12.  
  13.         # create a liststore with one string column to use as the model
  14.  
  15.         self.liststore = gtk.ListStore(str, str, str, 'gboolean')
  16.  
  17.         # create the TreeView using liststore
  18.  
  19.         self.treeview = gtk.TreeView(self.liststore)
  20.  
  21.         # create the TreeViewColumns to display the data
  22.  
  23.         self.tvcolumn = gtk.TreeViewColumn('Pixbuf and Text')
  24.  
  25.         self.tvcolumn1 = gtk.TreeViewColumn('Text Only')
  26.  
  27.         # add a row with text and a stock item - color strings for
  28.  
  29.         # the background
  30.  
  31.         self.liststore.append(['Open', gtk.STOCK_OPEN, 'Open a File', True])
  32.  
  33.         self.liststore.append(['New', gtk.STOCK_NEW, 'New File', True])
  34.  
  35.         self.liststore.append(['Print', gtk.STOCK_PRINT, 'Print File', False])
  36.  
  37.         # add columns to treeview
  38.  
  39.         self.treeview.append_column(self.tvcolumn)
  40.  
  41.         self.treeview.append_column(self.tvcolumn1)
  42.  
  43.         # create a CellRenderers to render the data
  44.  
  45.         self.cellpb = gtk.CellRendererPixbuf()
  46.  
  47.         self.cell = gtk.CellRendererText()
  48.  
  49.         self.cell1 = gtk.CellRendererText()
  50.  
  51.         # set background color property
  52.  
  53.         self.cellpb.set_property('cell-background', 'yellow')
  54.  
  55.         self.cell.set_property('cell-background', 'cyan')
  56.  
  57.         self.cell1.set_property('cell-background', 'pink')
  58.  
  59. 	self.cell1.set_property('alignment', pango.ALIGN_CENTER)
  60.  
  61.         # add the cells to the columns - 2 in the first
  62.  
  63.         self.tvcolumn.pack_start(self.cellpb, False)
  64.  
  65.         self.tvcolumn.pack_start(self.cell, True)
  66.  
  67.         self.tvcolumn1.pack_start(self.cell1, True)
  68.  
  69.         # set the cell attributes to the appropriate liststore column
  70.  
  71.         # GTK+ 2.0 doesn't support the "stock_id" property
  72.  
  73.         if gtk.gtk_version[1] < 2:
  74.  
  75.             self.tvcolumn.set_cell_data_func(self.cellpb, self.make_pb)
  76.  
  77.         else:
  78.  
  79.             self.tvcolumn.set_attributes(self.cellpb, stock_id=1)
  80.  
  81.         self.tvcolumn.set_attributes(self.cell, text=0)
  82.  
  83.         self.tvcolumn1.set_attributes(self.cell1, text=2,
  84.  
  85.                                       cell_background_set=3)
  86.  
  87.         # make treeview searchable
  88.  
  89.         self.treeview.set_search_column(0)
  90.  
  91.         # Allow sorting on the column
  92.  
  93.         self.tvcolumn.set_sort_column_id(0)
  94.  
  95.         # Allow drag and drop reordering of rows
  96.  
  97.         self.treeview.set_reorderable(True)
  98.  
  99.         self.window.add(self.treeview)
  100.  
  101.         self.window.show_all()
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Re: help with treeview property setting

 
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  #2
Nov 5th, 2006
What is pygtk/gtk and what is is it used for?
Also, what is a treeview?
No one died when Clinton lied.
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Re: help with treeview property setting

 
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  #3
Nov 6th, 2006
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Originally Posted by sneekula View Post
What is pygtk/gtk and what is is it used for?
Also, what is a treeview?
If you don't know then you wont be able to help me.
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Re: help with treeview property setting

 
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  #4
Nov 6th, 2006
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Originally Posted by pachjo View Post
If you don't know then you wont be able to help me.
Thanks for your kind answer. I took the liberty to check
http://www.pygtk.org/pygtk2reference...ktreeview.html
all I can say is "ouch!", that is one complex thing! No wonder you are lost!
No one died when Clinton lied.
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Re: help with treeview property setting

 
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  #5
Nov 6th, 2006
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Originally Posted by sneekula View Post
Thanks for your kind answer. I took the liberty to check
http://www.pygtk.org/pygtk2reference...ktreeview.html
all I can say is "ouch!", that is one complex thing! No wonder you are lost!
hey, no offence intended.....

I just presumed that if you did not know what they were, you would know the answer.

And yep....it is making my head hurt!

Stupid thing is I could have had the application finished now in MS but as I only use Linux now at home want to do it in python. Needless to say I am less than impressed that it has taken me days now of searching and am still no nearer the answer. Also I dont seem to get any response from other forums either.

I can only guess this is something python/pygtk/gtk just cant do even though the sparse help suggests otherwise:eek:
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