Let's say I have a TreeView (with a backing TreeStore) that represents a list of products.
A Product has the following specifications:
Also, each product has a list of Components that it is constructed of. I want to display data about the components in the sub-nodes of the tree (so it would be, basically, a 2-level treeview), but then the top-level nodes will have a different model the the sub-nodes.
How can I accomplish it using Glade (Or if neccessery, through Python+PyGObjecy)?
You can only have one model per TreeView, but you can make a model that in realty are two (or more) models glued together, and add some boolean columns that controls which model should that line be displaying. Then, you add a set of CellRenderers and map it's visibility to those control columns.
The difficulty of this is when you want that the column had a name displayed on the top, in that case it can be difficult to order the information. If you can wireframe how you want the Tree to look like I can offer a base example implementation.
== EDIT ==
This is one example:
main.py:
from gi.repository import Gtk
from os.path import abspath, dirname, join
WHERE_AM_I = abspath(dirname(__file__))
# My Model map
mm = {
'name' : 0,
'catalog_num' : 1,
'comment' : 2,
'component' : 3,
'is_top' : 4,
'is_child' : 5,
}
class MyApp(object):
def __init__(self):
"""
Build GUI
"""
# Build GUI from Glade file
self.builder = Gtk.Builder()
self.glade_file = join(WHERE_AM_I, 'gui.glade')
self.builder.add_from_file(self.glade_file)
# Get objects
go = self.builder.get_object
self.window = go('window')
self.treestore = go('treestore')
# Fill model
self._load_model()
# Connect signals
self.builder.connect_signals(self)
self.window.connect('delete-event', lambda x,y: Gtk.main_quit())
# Everything is ready
self.window.show()
def _load_model(self):
my_data = [
['Cheese', 'F001', 'This is the best cheese ever!', '', True, False],
['Pepperoni', 'F002', 'Delicious pepperoni :}', '', True, False],
['Pepperonni Pizza', 'P001', 'Yes, I\'m hungry :(', '', True, False],
['', '', None, 'Cheese', False, True],
['', '', None, 'Pepperonni', False, True],
]
parent = None
for i in my_data:
if i[mm['is_child']]:
self.treestore.append(parent, i)
else:
parent = self.treestore.append(None, i)
if __name__ == '__main__':
gui = MyApp()
Gtk.main()
gui.glade:
<?xml version="1.0" encoding="UTF-8"?>
<interface>
<!-- interface-requires gtk+ 3.0 -->
<object class="GtkTreeStore" id="treestore">
<columns>
<!-- column-name name -->
<column type="gchararray"/>
<!-- column-name catalog_num -->
<column type="gchararray"/>
<!-- column-name comment -->
<column type="gchararray"/>
<!-- column-name component -->
<column type="gchararray"/>
<!-- column-name is_top -->
<column type="gboolean"/>
<!-- column-name is_child -->
<column type="gboolean"/>
</columns>
</object>
<object class="GtkWindow" id="window">
<property name="can_focus">False</property>
<property name="border_width">10</property>
<property name="title" translatable="yes">TreeView test</property>
<property name="window_position">center-always</property>
<property name="default_width">400</property>
<property name="default_height">300</property>
<child>
<object class="GtkScrolledWindow" id="scrolledwindow">
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="shadow_type">in</property>
<child>
<object class="GtkTreeView" id="treeview">
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="model">treestore</property>
<property name="headers_visible">False</property>
<property name="headers_clickable">False</property>
<property name="search_column">1</property>
<property name="tooltip_column">2</property>
<child internal-child="selection">
<object class="GtkTreeSelection" id="treeview-selection"/>
</child>
<child>
<object class="GtkTreeViewColumn" id="treeviewcolumn_name">
<property name="title" translatable="yes">Name</property>
<child>
<object class="GtkCellRendererText" id="cellrenderertext_name"/>
<attributes>
<attribute name="visible">4</attribute>
<attribute name="text">0</attribute>
</attributes>
</child>
<child>
<object class="GtkCellRendererText" id="cellrenderertext_component"/>
<attributes>
<attribute name="visible">5</attribute>
<attribute name="text">3</attribute>
</attributes>
</child>
</object>
</child>
<child>
<object class="GtkTreeViewColumn" id="treeviewcolumn_catalog_num">
<property name="title" translatable="yes">Catalog #</property>
<child>
<object class="GtkCellRendererText" id="cellrenderertext_catalog"/>
<attributes>
<attribute name="visible">4</attribute>
<attribute name="text">1</attribute>
</attributes>
</child>
</object>
</child>
</object>
</child>
</object>
</child>
</object>
</interface>
Code can also be found at: https://gist.github.com/carlos-jenkins/5555283