GTK shadow test

shadows.py

#!/usr/bin/env python

# chose either GTK 2 or 3
GTK=2

if GTK == 3:
    from gi.repository import Gtk, GLib
else:
    import gtk as Gtk
    import glib as GLib

b = Gtk.Builder()
b.add_from_file('shadows.ui')
w = b.get_object('window1')
frame = b.get_object('frame1')
viewport = b.get_object('viewport1')
scrolled = b.get_object('scrolledwindow1')

w.connect('destroy', Gtk.main_quit)
w.show()

shadow_type = 0

def change_frame(data=None):
    global shadow_type
    for o in [frame, viewport, scrolled]:
        o.set_shadow_type(shadow_type)
        w.queue_draw()  # workaround for a GtkViewport refresh bug
    shadow_type = shadow_type + 1 if shadow_type < 4 else 0
    return True

GLib.timeout_add_seconds(1, change_frame)

Gtk.main()

shadows.ui

<?xml version="1.0" encoding="UTF-8"?>
<interface>
  <requires lib="gtk+" version="2.24"/>
  <!-- interface-naming-policy project-wide -->
  <object class="GtkTextBuffer" id="textbuffer1">
    <property name="text" translatable="yes">A
Scrolled window</property>
  </object>
  <object class="GtkWindow" id="window1">
    <property name="can_focus">False</property>
    <signal name="destroy" handler="gtk_main_quit" swapped="no"/>
    <child>
      <object class="GtkVBox" id="vbox1">
        <property name="visible">True</property>
        <property name="can_focus">False</property>
        <child>
          <object class="GtkLabel" id="label4">
            <property name="visible">True</property>
            <property name="can_focus">False</property>
            <property name="label" translatable="yes">label</property>
          </object>
          <packing>
            <property name="expand">True</property>
            <property name="fill">True</property>
            <property name="position">0</property>
          </packing>
        </child>
        <child>
          <object class="GtkHBox" id="hbox2">
            <property name="visible">True</property>
            <property name="can_focus">False</property>
            <child>
              <object class="GtkLabel" id="label2">
                <property name="visible">True</property>
                <property name="can_focus">False</property>
                <property name="label" translatable="yes">label</property>
              </object>
              <packing>
                <property name="expand">True</property>
                <property name="fill">True</property>
                <property name="position">0</property>
              </packing>
            </child>
            <child>
              <object class="GtkFrame" id="frame1">
                <property name="visible">True</property>
                <property name="can_focus">False</property>
                <property name="label_xalign">0</property>
                <property name="shadow_type">in</property>
                <child>
                  <object class="GtkLabel" id="label1">
                    <property name="visible">True</property>
                    <property name="can_focus">False</property>
                    <property name="label" translatable="yes">A
Frame</property>
                  </object>
                </child>
                <child type="label_item">
                  <placeholder/>
                </child>
              </object>
              <packing>
                <property name="expand">True</property>
                <property name="fill">True</property>
                <property name="position">1</property>
              </packing>
            </child>
            <child>
              <object class="GtkLabel" id="label3">
                <property name="visible">True</property>
                <property name="can_focus">False</property>
                <property name="label" translatable="yes">label</property>
              </object>
              <packing>
                <property name="expand">True</property>
                <property name="fill">True</property>
                <property name="position">2</property>
              </packing>
            </child>
          </object>
          <packing>
            <property name="expand">True</property>
            <property name="fill">True</property>
            <property name="position">1</property>
          </packing>
        </child>
        <child>
          <object class="GtkLabel" id="label5">
            <property name="visible">True</property>
            <property name="can_focus">False</property>
            <property name="label" translatable="yes">label</property>
          </object>
          <packing>
            <property name="expand">True</property>
            <property name="fill">True</property>
            <property name="position">2</property>
          </packing>
        </child>
        <child>
          <object class="GtkHBox" id="hbox3">
            <property name="visible">True</property>
            <property name="can_focus">False</property>
            <child>
              <object class="GtkLabel" id="label7">
                <property name="visible">True</property>
                <property name="can_focus">False</property>
                <property name="label" translatable="yes">label</property>
              </object>
              <packing>
                <property name="expand">True</property>
                <property name="fill">True</property>
                <property name="position">0</property>
              </packing>
            </child>
            <child>
              <object class="GtkViewport" id="viewport1">
                <property name="visible">True</property>
                <property name="can_focus">False</property>
                <child>
                  <object class="GtkLabel" id="label9">
                    <property name="visible">True</property>
                    <property name="can_focus">False</property>
                    <property name="label" translatable="yes">A
Viewport</property>
                  </object>
                </child>
              </object>
              <packing>
                <property name="expand">True</property>
                <property name="fill">True</property>
                <property name="position">1</property>
              </packing>
            </child>
            <child>
              <object class="GtkLabel" id="label8">
                <property name="visible">True</property>
                <property name="can_focus">False</property>
                <property name="label" translatable="yes">label</property>
              </object>
              <packing>
                <property name="expand">True</property>
                <property name="fill">True</property>
                <property name="position">2</property>
              </packing>
            </child>
          </object>
          <packing>
            <property name="expand">True</property>
            <property name="fill">True</property>
            <property name="position">3</property>
          </packing>
        </child>
        <child>
          <object class="GtkLabel" id="label6">
            <property name="visible">True</property>
            <property name="can_focus">False</property>
            <property name="label" translatable="yes">label</property>
          </object>
          <packing>
            <property name="expand">True</property>
            <property name="fill">True</property>
            <property name="position">4</property>
          </packing>
        </child>
        <child>
          <object class="GtkHBox" id="hbox1">
            <property name="visible">True</property>
            <property name="can_focus">False</property>
            <child>
              <object class="GtkLabel" id="label11">
                <property name="visible">True</property>
                <property name="can_focus">False</property>
                <property name="label" translatable="yes">label</property>
              </object>
              <packing>
                <property name="expand">True</property>
                <property name="fill">True</property>
                <property name="position">0</property>
              </packing>
            </child>
            <child>
              <object class="GtkScrolledWindow" id="scrolledwindow1">
                <property name="visible">True</property>
                <property name="can_focus">True</property>
                <property name="hscrollbar_policy">automatic</property>
                <property name="vscrollbar_policy">automatic</property>
                <property name="shadow_type">in</property>
                <child>
                  <object class="GtkTextView" id="textview1">
                    <property name="visible">True</property>
                    <property name="can_focus">True</property>
                    <property name="buffer">textbuffer1</property>
                  </object>
                </child>
              </object>
              <packing>
                <property name="expand">True</property>
                <property name="fill">True</property>
                <property name="position">1</property>
              </packing>
            </child>
            <child>
              <object class="GtkLabel" id="label12">
                <property name="visible">True</property>
                <property name="can_focus">False</property>
                <property name="label" translatable="yes">label</property>
              </object>
              <packing>
                <property name="expand">True</property>
                <property name="fill">True</property>
                <property name="position">2</property>
              </packing>
            </child>
          </object>
          <packing>
            <property name="expand">True</property>
            <property name="fill">True</property>
            <property name="position">5</property>
          </packing>
        </child>
        <child>
          <object class="GtkLabel" id="label10">
            <property name="visible">True</property>
            <property name="can_focus">False</property>
            <property name="label" translatable="yes">label</property>
          </object>
          <packing>
            <property name="expand">True</property>
            <property name="fill">True</property>
            <property name="position">6</property>
          </packing>
        </child>
        <child>
          <object class="GtkButton" id="button1">
            <property name="label">gtk-quit</property>
            <property name="visible">True</property>
            <property name="can_focus">True</property>
            <property name="receives_default">True</property>
            <property name="use_stock">True</property>
            <signal name="clicked" handler="gtk_main_quit" swapped="no"/>
          </object>
          <packing>
            <property name="expand">True</property>
            <property name="fill">True</property>
            <property name="position">7</property>
          </packing>
        </child>
      </object>
    </child>
  </object>
</interface>