mirror of
https://github.com/Apress/foundations-of-pygtk-development.git
synced 2025-07-21 20:01:08 +02:00
86 lines
3.1 KiB
Python
86 lines
3.1 KiB
Python
#!/usr/bin/python3
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import sys
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import gi
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gi.require_version('Gtk', '3.0')
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from gi.repository import Gtk, GObject
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QUANTITY = 0
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PRODUCT = 1
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GroceryItem = (( 1, "Paper Towels" ),
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( 2, "Bread" ),
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( 1, "Butter" ),
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( 1, "Milk" ),
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( 3, "Chips" ),
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( 4, "Soda" ))
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class AppWindow(Gtk.ApplicationWindow):
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self.set_border_width(10)
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self.set_size_request(250, 175)
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treeview = Gtk.TreeView.new()
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self.setup_tree_view(treeview)
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store = Gtk.ListStore.new((GObject.TYPE_STRING,
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GObject.TYPE_STRING))
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for row in GroceryItem:
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iter = store.append(None)
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store.set(iter, QUANTITY, "%.0f" % row[QUANTITY], PRODUCT, row[PRODUCT])
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treeview.set_model(store)
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scrolled_win = Gtk.ScrolledWindow.new(None, None)
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scrolled_win.set_policy(Gtk.PolicyType.AUTOMATIC, Gtk.PolicyType.AUTOMATIC)
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scrolled_win.add(treeview)
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self.add(scrolled_win)
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def setup_tree_view(self, treeview):
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# Create a GtkListStore that will be used for the combo box renderer.
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model = Gtk.ListStore.new((GObject.TYPE_STRING,
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GObject.TYPE_STRING))
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iter = model.append()
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model.set(iter, 0, "None")
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iter = model.append()
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model.set(iter, 0, "One")
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iter = model.append()
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model.set(iter, 0, "Half a Dozen")
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iter = model.append()
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model.set(iter, 0, "Dozen")
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iter = model.append()
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model.set(iter, 0, "Two Dozen")
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# Create the GtkCellRendererCombo and add the tree model. Then, add the
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# renderer to a new column and add the column to the GtkTreeView.
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renderer = Gtk.CellRendererCombo(text_column=0, editable=True,
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has_entry=True, model=model)
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column = Gtk.TreeViewColumn("Count", renderer, text=QUANTITY)
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treeview.append_column(column)
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renderer.connect("edited", self.cell_edited, treeview)
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renderer = Gtk.CellRendererText.new()
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column = Gtk.TreeViewColumn("Product", renderer, text=PRODUCT)
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treeview.append_column(column)
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def cell_edited(self, renderer, path, new_text, treeview):
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# Make sure the text is not empty. If not, apply it to the tree view cell.
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if new_text != "":
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model = treeview.get_model()
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iter = model.get_iter_from_string(path)
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if iter:
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model.set(iter, QUANTITY, new_text)
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class Application(Gtk.Application):
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def __init__(self, *args, **kwargs):
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super().__init__(*args, application_id="org.example.myapp",
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**kwargs)
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self.window = None
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def do_activate(self):
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if not self.window:
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self.window = AppWindow(application=self, title="Grocery List")
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self.window.show_all()
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self.window.present()
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if __name__ == "__main__":
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app = Application()
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app.run(sys.argv)
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