1 files changed, 108 insertions, 0 deletions
diff --git a/examples/pygtk-demo/demos/sizegroup.py b/examples/pygtk-demo/demos/sizegroup.py
new file mode 100644
index 00000000..c40ce383
--- /dev/null
+++ b/examples/pygtk-demo/demos/sizegroup.py
@@ -0,0 +1,108 @@
+#!/usr/bin/env python
+"""Size Groups
+
+GtkSizeGroup provides a mechanism for grouping a number of widgets together so
+they all request the same amount of space. This is typically useful when you
+want a column of widgets to have the same size, but you can't use a GtkTable
+widget.
+
+Note that size groups only affect the amount of space requested, not the size
+that the widgets finally receive. If you want the widgets in a GtkSizeGroup to
+actually be the same size, you need to pack them in such a way that they get
+the size they request and not more. For example, if you are packing your
+widgets into a table, you would not include the GTK_FILL flag."""
+
+description = "Size Groups"
+
+import gtk
+
+def create_option_menu(options):
+    menu = gtk.Menu()
+    for str in options:
+        menu_item = gtk.MenuItem(str)
+        menu_item.show()
+        gtk.MenuShell.append(menu, menu_item)
+    
+    option_menu = gtk.OptionMenu()
+    option_menu.set_menu(menu)
+    
+    return option_menu
+
+def add_row(table, row, size_group, label_text, options):
+    label = gtk.Label(label_text)
+    label.set_use_underline(gtk.TRUE)
+    label.set_alignment(0, 1)
+    table.attach(label, 0, 1, row, row + 1, gtk.EXPAND + gtk.FILL, 0, 0, 0)
+    
+    option_menu = create_option_menu(options)
+    label.set_mnemonic_widget(option_menu)
+    size_group.add_widget(option_menu)
+    table.attach(option_menu, 1, 2, row, row + 1, 0, 0, 0, 0)
+
+def toggle_grouping(check_button, size_group):
+    # gtk.SIZE_GROUP_NONE is not generally useful, but is useful
+    # here to show the effect of gtk.SIZE_GROUP_HORIZONTAL by
+    # contrast.
+    if check_button.get_active():
+        size_group.set_mode(gtk.SIZE_GROUP_HORIZONTAL)
+    else:
+        size_group.set_mode(gtk.SIZE_GROUP_NONE)
+
+def main():
+    color_options = ["Red", "Green", "Blue"]
+    dash_options = ["Solid", "Dashed", "Dotted"]
+    end_options = ["Square", "Round", "Arrow"]
+    
+    window = gtk.Dialog("GtkSizeGroups", None, 0,
+            (gtk.STOCK_CLOSE, gtk.RESPONSE_NONE))
+    window.set_resizable(gtk.FALSE)
+    window.connect('response', lambda w, d: window.destroy())
+    if __name__ == '__main__':
+        window.connect('destroy', lambda win: gtk.main_quit())
+    
+    vbox = gtk.VBox(gtk.FALSE, 5)
+    window.vbox.pack_start(vbox, gtk.TRUE, gtk.TRUE, 0)
+    vbox.set_border_width(5)
+    
+    size_group = gtk.SizeGroup(gtk.SIZE_GROUP_HORIZONTAL)
+    
+    # Create one frame holding color options
+    
+    frame = gtk.Frame("Color options")
+    vbox.pack_start(frame, gtk.TRUE, gtk.TRUE, 0)
+    
+    table = gtk.Table(2, 2, gtk.FALSE)
+    table.set_border_width(5)
+    table.set_row_spacings(5)
+    table.set_col_spacings(10)
+    frame.add(table)
+    
+    add_row(table, 0, size_group, "_Foreground", color_options)
+    add_row(table, 1, size_group, "_Background", color_options)
+    
+    # And another frame holding line style options
+    
+    frame = gtk.Frame("Line options")
+    vbox.pack_start(frame, gtk.FALSE, gtk.FALSE, 0)
+    
+    table = gtk.Table(2, 2, gtk.FALSE)
+    table.set_border_width(5)
+    table.set_row_spacings(5)
+    table.set_col_spacings(10)
+    frame.add(table)
+    
+    add_row(table, 0, size_group, "_Dashing", dash_options)
+    add_row(table, 1, size_group, "_Line ends", end_options)
+    
+    # And a check button to turn grouping on and off
+    
+    check_button = gtk.CheckButton("_Enable grouping")
+    vbox.pack_start(check_button, gtk.FALSE, gtk.FALSE, 0)
+    check_button.set_active(gtk.TRUE)
+    check_button.connect('toggled', toggle_grouping, size_group)
+    
+    window.show_all()
+    
+    if __name__ == '__main__': gtk.main()
+
+if __name__ == '__main__': main()