On Sun, Jul 27, 2003 at 03:05:47AM -0700, Colin Fox wrote:
> Is there any documentation or examples that show how to use the new
> GtkTree code in python? Especially with a libglade generated interface?
>
> A working tree example would be ideal.
There's a tutorial here:
http://liw.iki.fi/liw/texts/gtktreeview-tutorial.html
Don't forget the examples that come with the pygtk distribution. I whipped
up my own example of a multi-column treeview. It demonstrates a few things:
* How make certain cells editable. Here I use two "control" columns
at the end of my row (store column 2 & 3) that control whether a cell
is editable and visible. How the renderer uses these columns is set with
column = gtk.TreeViewColumn(column_titles[i], cell, text=i,
editable=ncols+i, visible=ncols+i)
which means that the renderer will get the text to render from column i
and determine whether the cell is editable and visible using the
values in column ncols+i. See the properties for the different
renderers to see what other keywords you can use.
* A callback for the "edited" signal which actually sets the new text
that you type in a cell. I use set_data/get_data to retrieve the
actual store column that the renderer corresponds to (you could also
pass it as user_data when connecting the callback).
* How to get a selection, this is in the on_delete_button_clicked callback.
Dave Cook
try:
import pygtk; pygtk.require('2.0')
except:
# Hope for the best...
pass
import gobject
import gtk
from gtk import mainquit
import gtk.glade
GLADEFILE = 'simple_treestore.glade'
COLUMN_TITLES = ('Composer', 'Title')
COLUMN_TYPES = [gobject.TYPE_STRING]*2 + [gobject.TYPE_BOOLEAN]*2
treedata = [[0, 'Mahler, Gustav', 1, '', 2, 1, 3, 0],
[0, '', 1, 'Symphony No 1', 2, 0, 3, 1],
[0, '', 1, 'Symphony No 9', 2, 0, 3, 1],
[0, 'Prokofiev, Sergei', 1, '', 2, 1, 3, 0],
[0, '', 1, 'Alexander Nevsky', 2, 0, 3, 1],
[0, '', 1, 'Piano Concerto No 3', 2, 0, 3, 1],
[0, 'Bartok, Bela', 1, '', 2, 1, 3, 0],
[0, '', 1, 'Concerto for Orchestra', 2, 0, 3, 1],
[0, '', 1, 'String Quartet No 5', 2, 0, 3, 1]]
def on_delete_button_clicked(treeview):
selection = treeview.get_selection()
select_tuple = selection.get_selected()
if select_tuple:
store, iter = select_tuple
store.remove(iter)
def edited_callback(renderer, path_string, newtext, treeview):
colno = renderer.get_data('colno')
if colno!=None:
indices = path_string.split(':')
path = tuple( map(int, indices) )
store = treeview.get_model()
iter = store.get_iter(path)
store.set_value(iter, colno, newtext)
def add_columns(treeview, column_titles):
ncols = len(column_titles)
for i in range(ncols):
cell = gtk.CellRendererText()
column = gtk.TreeViewColumn(column_titles[i], cell, text=i,
editable=ncols+i, visible=ncols+i)
cell.set_data('colno', i)
cell.connect("edited", edited_callback, treeview)
treeview.append_column(column)
def init_store(store, rows):
for row in rows:
if row[-1]==0:
iter = store.append(None)
parent = iter
else:
iter = store.append(parent)
store.set(iter, *row)
def main():
xml = gtk.glade.XML(GLADEFILE)
treeview = xml.get_widget('treeview')
add_columns(treeview, COLUMN_TITLES)
xml.signal_autoconnect(globals())
store = gtk.TreeStore(*COLUMN_TYPES)
init_store(store, treedata)
treeview.set_model(store)
gtk.main()
if __name__=='__main__':
main()
<?xml version="1.0" standalone="no"?> <!--*- mode: xml -*-->
<!DOCTYPE glade-interface SYSTEM "http://glade.gnome.org/glade-2.0.dtd";>
<glade-interface>
<widget class="GtkWindow" id="window1">
<property name="visible">True</property>
<property name="title" translatable="yes">window1</property>
<property name="type">GTK_WINDOW_TOPLEVEL</property>
<property name="window_position">GTK_WIN_POS_NONE</property>
<property name="modal">False</property>
<property name="default_width">240</property>
<property name="default_height">240</property>
<property name="resizable">True</property>
<property name="destroy_with_parent">False</property>
<signal name="delete_event" handler="mainquit" last_modification_time="Sun, 27 Jul
2003 12:15:57 GMT"/>
<child>
<widget class="GtkVBox" id="vbox1">
<property name="visible">True</property>
<property name="homogeneous">False</property>
<property name="spacing">0</property>
<child>
<widget class="GtkScrolledWindow" id="scrolledwindow1">
<property name="border_width">3</property>
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="hscrollbar_policy">GTK_POLICY_AUTOMATIC</property>
<property name="vscrollbar_policy">GTK_POLICY_AUTOMATIC</property>
<property name="shadow_type">GTK_SHADOW_ETCHED_IN</property>
<property name="window_placement">GTK_CORNER_TOP_LEFT</property>
<child>
<widget class="GtkTreeView" id="treeview">
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="headers_visible">True</property>
<property name="rules_hint">False</property>
<property name="reorderable">False</property>
<property name="enable_search">True</property>
</widget>
</child>
</widget>
<packing>
<property name="padding">0</property>
<property name="expand">True</property>
<property name="fill">True</property>
</packing>
</child>
<child>
<widget class="GtkButton" id="delete_button">
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="label" translatable="yes">Delete Row</property>
<property name="use_underline">True</property>
<property name="relief">GTK_RELIEF_NORMAL</property>
<signal name="clicked" handler="on_delete_button_clicked" object="treeview"
last_modification_time="Sun, 27 Jul 2003 11:55:13 GMT"/>
</widget>
<packing>
<property name="padding">0</property>
<property name="expand">False</property>
<property name="fill">False</property>
</packing>
</child>
</widget>
</child>
</widget>
</glade-interface>
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