add timer-applet

14 files changed, 1343 insertions, 0 deletions

diff --git a/timer-applet/src/timerapplet/ui/AddEditPresetDialog.py b/timer-applet/src/timerapplet/ui/AddEditPresetDialog.py
new file mode 100644
index 00000000..d6773769
--- /dev/null
+++ b/timer-applet/src/timerapplet/ui/AddEditPresetDialog.py
@@ -0,0 +1,75 @@
+# Copyright (C) 2008 Jimmy Do <[email protected]>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+import gtk
+import gtk.glade as glade
+from DurationChooser import DurationChooser
+
+class AddEditPresetDialog(object):
+    def __init__(self, glade_file_name, title, name_validator_func,
+                 name='', hours=0, minutes=0, seconds=0, command='',
+                 next_timer='', auto_start=False):
+        self._valid_name_func = name_validator_func
+        
+        glade_widgets = glade.XML(glade_file_name, 'add_edit_preset_dialog')
+        self._dialog = glade_widgets.get_widget('add_edit_preset_dialog')
+        self._ok_button = glade_widgets.get_widget('ok_button')
+        self._cancel_button = glade_widgets.get_widget('cancel_button')
+        self._name_entry = glade_widgets.get_widget('name_entry')
+        duration_chooser_container = glade_widgets.get_widget('duration_chooser_container')
+        self._duration_chooser = DurationChooser(gtk.SizeGroup(gtk.SIZE_GROUP_HORIZONTAL))
+        self._command_entry = glade_widgets.get_widget('command_entry')
+        self._next_timer_entry = glade_widgets.get_widget('next_timer_entry')
+        self._auto_start_check = glade_widgets.get_widget('auto_start_check')
+        
+        duration_chooser_container.pack_start(self._duration_chooser)
+        
+        self._dialog.set_title(title)
+        self._dialog.set_default_response(gtk.RESPONSE_OK)
+        self._name_entry.set_text(name)
+        self._command_entry.set_text(command)
+        self._duration_chooser.set_duration(hours, minutes, seconds)
+        self._next_timer_entry.set_text(next_timer)
+        self._auto_start_check.set_active(auto_start)
+        
+        self._name_entry.connect('changed', lambda entry: self._check_for_valid_save_preset_input())
+        self._duration_chooser.connect('duration-changed',
+                                       lambda chooser: self._check_for_valid_save_preset_input())
+        self._duration_chooser.show()
+    
+    def _non_zero_duration(self):
+        (hours, minutes, seconds) = self._duration_chooser.get_duration()
+        return (hours > 0 or minutes > 0 or seconds > 0)
+        
+    def _check_for_valid_save_preset_input(self):
+        self._ok_button.props.sensitive = (self._non_zero_duration() and 
+                                           self._valid_name_func(self._name_entry.get_text()))
+
+    ## Callback for saving ##
+
+    def get_preset(self):
+        self._check_for_valid_save_preset_input()
+        result = self._dialog.run()
+        self._dialog.hide()
+        if result == gtk.RESPONSE_OK:
+            (hours, minutes, seconds) = self._duration_chooser.get_duration()
+            cmd = self._command_entry.get_text()
+            next_timer = self._next_timer_entry.get_text()
+            auto_start = self._auto_start_check.get_active()
+            return (self._name_entry.get_text(), hours, minutes, seconds, cmd,
+                    next_timer, auto_start)
+        else:
+            return None
diff --git a/timer-applet/src/timerapplet/ui/ContinueTimerDialog.py b/timer-applet/src/timerapplet/ui/ContinueTimerDialog.py
new file mode 100644
index 00000000..a6b1bfb2
--- /dev/null
+++ b/timer-applet/src/timerapplet/ui/ContinueTimerDialog.py
@@ -0,0 +1,63 @@
+# Copyright (C) 2008 Jimmy Do <[email protected]>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+from gettext import gettext as _
+import gtk
+
+class ContinueTimerDialog(object):
+    (STOP_TIMER, KEEP_PAUSED, CONTINUE_TIMER) = xrange(3)
+
+    def __init__(self, glade_file_name, header_text, body_text):
+        self._dialog = gtk.Dialog(_('Continue Timer'),
+                                  None,
+                                  gtk.DIALOG_DESTROY_WITH_PARENT,
+                                  (_('_Stop Timer'), gtk.RESPONSE_NO,
+                                   _('_Keep Paused'), gtk.RESPONSE_CLOSE,
+                                   _('_Continue Timer'), gtk.RESPONSE_YES))
+        self._dialog.props.border_width = 6
+        self._dialog.props.has_separator = False
+        self._dialog.props.resizable = False
+        self._dialog.vbox.props.spacing = 12
+        self._dialog.set_default_response(gtk.RESPONSE_YES)
+
+        hbox = gtk.HBox(False, 0)
+        hbox.props.spacing = 12
+        hbox.props.border_width = 6
+        
+        image = gtk.image_new_from_stock(gtk.STOCK_DIALOG_QUESTION, gtk.ICON_SIZE_DIALOG)
+        image.props.yalign = 0.0
+        
+        label = gtk.Label('<span weight="bold" size="larger">%s</span>\n\n%s' % (header_text, body_text))
+        label.props.use_markup = True
+        label.props.wrap = True
+        label.props.yalign = 0.0
+        
+        hbox.pack_start(image, False, False, 0)
+        hbox.pack_start(label, False, False, 0)
+        self._dialog.vbox.pack_start(hbox, False, False, 0)
+        
+        hbox.show_all()
+
+    def get_response(self):
+        dialog_result = self._dialog.run()
+        self._dialog.hide()
+        if dialog_result == gtk.RESPONSE_YES:
+            return ContinueTimerDialog.CONTINUE_TIMER
+        elif dialog_result == gtk.RESPONSE_NO:
+            return ContinueTimerDialog.STOP_TIMER
+        else:
+            return ContinueTimerDialog.KEEP_PAUSED
+
diff --git a/timer-applet/src/timerapplet/ui/DurationChooser.py b/timer-applet/src/timerapplet/ui/DurationChooser.py
new file mode 100644
index 00000000..77d0a7ed
--- /dev/null
+++ b/timer-applet/src/timerapplet/ui/DurationChooser.py
@@ -0,0 +1,166 @@
+# Copyright (C) 2008 Jimmy Do <[email protected]>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+from gettext import gettext as _
+import math
+import gobject
+import gtk
+
+class DurationChooser(gtk.VBox):
+    __gsignals__ = {'duration-changed': (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, ())}
+    MAX_HOURS = 48
+    MAX_MINUTES = 999
+    MAX_SECONDS = 999
+
+    def __init__(self, size_group):
+        gtk.VBox.__init__(self, False, 6)
+        
+        self._hours_spin = self._add_row(_('_Hours:'),
+                                         size_group,
+                                         DurationChooser.MAX_HOURS)
+        self._minutes_spin = self._add_row(_('_Minutes:'),
+                                           size_group,
+                                           DurationChooser.MAX_MINUTES)
+        self._seconds_spin = self._add_row(_('_Seconds:'),
+                                           size_group,
+                                           DurationChooser.MAX_SECONDS)
+    
+    def get_duration(self):
+        """Return numerical representations of the values in the spinbuttons.
+        
+        This method does not just call get_value_as_int() on each spinbutton because
+        get_value_as_int() does not return the most up-to-date value if the user is
+        in the middle of editing the value in a spinbutton. Instead, it actually
+        returns the value previously "confirmed" for the spinbutton (for example,
+        by moving focus to another widget).
+        
+        Example: User starts with all spinboxes set to 0. He types 5 in 'Minutes' and
+        immediately uses the keyboard to activate the 'Save as Preset' button. Because
+        the user never moved focus out of the spinbutton, get_value_as_int() will report
+        the previous value of 0, and the saved preset will not have the expected duration
+        of 5 minutes.
+        
+        If a particular spinbutton is empty or contains a non-float value, then this method
+        will report its value as zero.
+        
+        Returns a tuple in this format: (hours, minutes, seconds)
+        
+        """
+        hours_str = self._hours_spin.props.text
+        minutes_str = self._minutes_spin.props.text
+        seconds_str = self._seconds_spin.props.text
+        hours = 0
+        minutes = 0
+        seconds = 0
+
+        try:
+            hours = float(hours_str)
+        except TypeError:
+            pass
+        except ValueError:
+            pass
+
+        try:
+            minutes = float(minutes_str)
+        except TypeError:
+            pass
+        except ValueError:
+            pass
+
+        try:
+            seconds = float(seconds_str)
+        except TypeError:
+            pass
+        except ValueError:
+            pass
+
+        minutes_fraction = minutes - int(minutes)
+        hours_fraction = hours - int(hours)
+
+        # Distribute overflow from seconds to minutes to hours.
+        if seconds > 59:
+            minutes = math.floor(seconds / 60)
+            seconds = seconds % 60
+        if minutes > 59:
+            hours = math.floor(minutes / 60)
+            minutes = minutes % 60
+        if hours > DurationChooser.MAX_HOURS:
+            hours = DurationChooser.MAX_HOURS
+
+        # Distribute fractions.
+        if hours_fraction > 0:
+            minutes = int(hours_fraction * 60)
+        if minutes_fraction > 0:
+            seconds = int(minutes_fraction * 60)
+
+        return (int(hours), int(minutes), int(seconds))
+    
+    def set_duration(self, hours, minutes, seconds):
+        self._hours_spin.set_value(hours)
+        self._minutes_spin.set_value(minutes)
+        self._seconds_spin.set_value(seconds)
+
+    def normalize_fields(self):
+        (hours, minutes, seconds) = self.get_duration()
+        self._hours_spin.set_value(hours)
+        self._minutes_spin.set_value(minutes)
+        self._seconds_spin.set_value(seconds)
+
+    def clear(self):
+        self._hours_spin.set_value(0)
+        self._minutes_spin.set_value(0)
+        self._seconds_spin.set_value(0)
+        
+    def focus_hours(self):
+        self._hours_spin.grab_focus()
+        
+    def _add_row(self, row_label_str, size_group, max_spin_val):
+        row_hbox = gtk.HBox(False, 6)
+        
+        label = gtk.Label(row_label_str)
+        label.set_property('xalign', 0.0)
+        label.set_property('use-underline', True)
+        size_group.add_widget(label)
+        
+        spin_adj = gtk.Adjustment(0, 0, max_spin_val, 1, 1, 0)
+        spin_button = gtk.SpinButton(spin_adj, 1.0, 0)
+        spin_button.props.activates_default = True
+        spin_button.props.numeric = False
+        spin_button.props.update_policy = gtk.UPDATE_IF_VALID
+        
+        label.set_mnemonic_widget(spin_button)
+        
+        row_hbox.pack_start(label, False, False, 0)
+        row_hbox.pack_start(spin_button, True, True, 0)
+        self.pack_start(row_hbox, False, False, 0)
+        
+        spin_button.connect('changed', self._on_spin_button_val_changed)
+        spin_button.connect('focus-out-event', self._on_spin_button_focus_out)
+        spin_button.connect('activate', self._on_spin_button_activate)
+        
+        label.show()
+        spin_button.show()
+        row_hbox.show()
+        return spin_button
+        
+    def _on_spin_button_val_changed(self, spin_button):
+        self.emit('duration-changed')
+
+    def _on_spin_button_focus_out(self, spin_button, event):
+        self.normalize_fields()
+
+    def _on_spin_button_activate(self, entry):
+        self.normalize_fields()
diff --git a/timer-applet/src/timerapplet/ui/Makefile.am b/timer-applet/src/timerapplet/ui/Makefile.am
new file mode 100644
index 00000000..0021823e
--- /dev/null
+++ b/timer-applet/src/timerapplet/ui/Makefile.am
@@ -0,0 +1,15 @@
+moduledir = $(pythondir)/timerapplet/ui
+module_PYTHON = \
+	__init__.py \
+	AddEditPresetDialog.py \
+	ContinueTimerDialog.py \
+	DurationChooser.py \
+	ManagePresetsDialog.py \
+	Notifier.py \
+	PieMeter.py \
+	PreferencesDialog.py \
+	PulseButton.py \
+	ScrollableButtonList.py \
+	StartTimerDialog.py \
+	StartNextTimerDialog.py \
+	StatusButton.py
diff --git a/timer-applet/src/timerapplet/ui/ManagePresetsDialog.py b/timer-applet/src/timerapplet/ui/ManagePresetsDialog.py
new file mode 100644
index 00000000..0ee38625
--- /dev/null
+++ b/timer-applet/src/timerapplet/ui/ManagePresetsDialog.py
@@ -0,0 +1,86 @@
+# Copyright (C) 2008 Jimmy Do <[email protected]>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+import gobject
+import gtk
+import gtk.glade as glade
+
+class ManagePresetsDialog(gobject.GObject):
+    __gsignals__ = {'clicked-add':
+                        (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, ()),
+                    'clicked-edit':
+                        (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, (gobject.TYPE_PYOBJECT,)),
+                    'clicked-remove':
+                        (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, (gobject.TYPE_PYOBJECT,))}
+
+    def __init__(self, glade_file_name, presets_store, preset_display_func):
+        gobject.GObject.__init__(self)
+        
+        glade_widgets = glade.XML(glade_file_name, 'manage_presets_dialog')
+        self._dialog = glade_widgets.get_widget('manage_presets_dialog')
+        self._presets_view = glade_widgets.get_widget('presets_view')
+        self._delete_button = glade_widgets.get_widget('delete_button')
+        self._edit_button = glade_widgets.get_widget('edit_button')
+        self._add_button = glade_widgets.get_widget('add_button')
+
+        self._presets_view.set_model(presets_store)
+        renderer = gtk.CellRendererText()
+        col = gtk.TreeViewColumn('Preset', renderer)
+        
+        def preset_cell_data_func(col, cell, model, row_iter, user_data=None):
+            cell.props.text = preset_display_func(row_iter)
+            
+        col.set_cell_data_func(renderer, preset_cell_data_func)
+        self._presets_view.append_column(col)
+        
+        self._dialog.connect('response', self._on_dialog_response)
+        self._dialog.connect('delete-event', self._dialog.hide_on_delete)
+        self._presets_view.get_selection().connect('changed', lambda selection: self._update_button_states())
+        self._delete_button.connect('clicked', self._on_delete_button_clicked)
+        self._edit_button.connect('clicked', self._on_edit_button_clicked)
+        self._add_button.connect('clicked', self._on_add_button_clicked)
+        
+        self._update_button_states()
+        self._dialog.set_default_size(300, 220)
+    
+    def show(self):
+        self._dialog.present()
+    
+    def _get_selected_path(self):
+        selection = self._presets_view.get_selection()
+        (model, selection_iter) = selection.get_selected()
+        return model.get_path(selection_iter)
+        
+    def _update_button_states(self):
+        selection = self._presets_view.get_selection()
+        num_selected = selection.count_selected_rows()
+        self._delete_button.props.sensitive = num_selected >= 1
+        self._edit_button.props.sensitive = num_selected == 1
+    
+    def _on_delete_button_clicked(self, button):
+        row_path = self._get_selected_path()
+        self.emit('clicked-remove', row_path)
+    
+    def _on_edit_button_clicked(self, button):
+        row_path = self._get_selected_path()
+        self.emit('clicked-edit', row_path)
+    
+    def _on_add_button_clicked(self, button):
+        self.emit('clicked-add')
+        
+    def _on_dialog_response(self, dialog, response_id):
+        dialog.hide()
+
diff --git a/timer-applet/src/timerapplet/ui/Notifier.py b/timer-applet/src/timerapplet/ui/Notifier.py
new file mode 100644
index 00000000..92e814b7
--- /dev/null
+++ b/timer-applet/src/timerapplet/ui/Notifier.py
@@ -0,0 +1,73 @@
+# Copyright (C) 2008 Jimmy Do <[email protected]>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+import gobject
+import pynotify
+
+class Notifier(object):
+    _NOTIFICATION_REDISPLAY_INTERVAL_SECONDS = 60
+
+    def __init__(self, app_name, icon, attach):
+        self._icon = icon
+        self._attach = attach
+        self._notify = None
+        self._handler_id = None
+        self._timeout_id = None
+        
+        if not pynotify.is_initted():
+            pynotify.init(app_name)
+
+    def begin(self, summary, body, get_reminder_message_func):
+        # NOTE: This callback wrapper is to workaround an API-breaking change present in
+        # the version of libmatenotify used by Fedora 10. The API break adds an additional
+        # 'reason' parameter to the callback signature. This was fixed before
+        # the latest official release of libmatenotify, but it looks like Fedora 10
+        # is using an unofficial libmatenotify build that still contains the API-breaking change.
+        def closed_callback_wrapper(notification, reason_UNUSED=None):
+            self._on_notification_closed(notification, get_reminder_message_func)
+
+        self.end()
+        self._notify = pynotify.Notification(summary, body, self._icon)
+        self._handler_id = self._notify.connect('closed', closed_callback_wrapper)
+        self._notify.show()
+
+    def end(self):
+        if self._notify is not None:
+            if self._timeout_id is not None:
+                gobject.source_remove(self._timeout_id)
+                self._timeout_id = None
+            self._notify.disconnect(self._handler_id)
+            self._handler_id = None
+            try:
+                self._notify.close()
+            except gobject.GError:
+                # Throws a GError exception if the notification bubble has already been closed.
+                # Ignore the exception.
+                pass
+            self._notify = None
+
+    def _on_notification_closed(self, notification, get_reminder_message_func):
+        self._timeout_id = gobject.timeout_add(Notifier._NOTIFICATION_REDISPLAY_INTERVAL_SECONDS * 1000,
+                                               self._on_notification_redisplay_timeout,
+                                               get_reminder_message_func)
+        
+    def _on_notification_redisplay_timeout(self, get_reminder_message_func):
+        message = get_reminder_message_func()
+        self._notify.props.body = message
+        self._notify.show()
+        
+        self._timeout_id = None
+        return False
diff --git a/timer-applet/src/timerapplet/ui/PieMeter.py b/timer-applet/src/timerapplet/ui/PieMeter.py
new file mode 100644
index 00000000..f97d02d7
--- /dev/null
+++ b/timer-applet/src/timerapplet/ui/PieMeter.py
@@ -0,0 +1,77 @@
+# Copyright (C) 2008 Jimmy Do <[email protected]>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+import math
+import gobject
+import gtk
+
+class PieMeter(gtk.Image):
+    _DEFAULT_SIZE = 24
+
+    def __init__(self):
+        gtk.Image.__init__(self)
+        self._progress = 0.0
+        self._fill_color = (0.0, 1.0, 0.0)
+        
+    def set_progress(self, progress):
+        assert progress >= 0.0
+        assert progress <= 1.0
+        self._progress = progress
+        if self.window is not None:
+            self.window.invalidate_rect(self.allocation, True)
+        
+    def set_fill_color(self, red, green, blue):
+        assert 0.0 <= red <= 1.0
+        assert 0.0 <= green <= 1.0
+        assert 0.0 <= blue <= 1.0
+        self._fill_color = (red, green, blue)
+        
+        if self.window is not None:
+            self.window.invalidate_rect(self.allocation, True)
+            
+    def do_size_request(self, requisition):
+        requisition.width = PieMeter._DEFAULT_SIZE
+        requisition.height = PieMeter._DEFAULT_SIZE
+        
+    def do_expose_event(self, event):
+        context = event.window.cairo_create()
+        
+        rect = self.allocation
+        x = rect.x + (rect.width / 2)
+        y = rect.y + (rect.height / 2)
+        radius = (min(rect.width, rect.height) / 2)
+        
+        # Draw background circle
+        context.arc(x, y, radius, 0, 2 * math.pi)
+        context.set_source_rgba(0.8, 0.8, 0.8)
+        context.fill()
+        
+        # Draw pie
+        context.arc(x, y, radius, (-0.5 * math.pi) + self._progress * 2 * math.pi, 1.5 * math.pi)
+        context.line_to(x, y)
+        context.close_path()
+        (red, green, blue) = self._fill_color
+        context.set_source_rgb(red, green, blue)
+        context.fill()
+        
+        # Draw circle outline
+        context.arc(x, y, radius, 0, 2 * math.pi)
+        context.set_source_rgba(1, 1, 1)
+        context.set_line_width(1.0)
+        context.stroke()
+
+gobject.type_register(PieMeter)
+
diff --git a/timer-applet/src/timerapplet/ui/PreferencesDialog.py b/timer-applet/src/timerapplet/ui/PreferencesDialog.py
new file mode 100644
index 00000000..6341fe8d
--- /dev/null
+++ b/timer-applet/src/timerapplet/ui/PreferencesDialog.py
@@ -0,0 +1,192 @@
+# Copyright (C) 2008 Jimmy Do <[email protected]>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+import gobject
+import gtk
+import gtk.glade as glade
+
+class PreferencesDialog(gobject.GObject):
+    __gsignals__ = \
+    {
+        'show-remaining-time-changed': 
+        (
+            gobject.SIGNAL_RUN_LAST,
+            gobject.TYPE_NONE,
+            (gobject.TYPE_BOOLEAN,)
+        ),
+        'play-sound-changed':
+        (
+            gobject.SIGNAL_RUN_LAST,
+            gobject.TYPE_NONE,
+            (gobject.TYPE_BOOLEAN,)
+        ),
+        'use-custom-sound-changed':
+        (
+            gobject.SIGNAL_RUN_LAST,
+            gobject.TYPE_NONE,
+            (gobject.TYPE_BOOLEAN,)
+        ),
+        'show-popup-notification-changed':
+        (
+            gobject.SIGNAL_RUN_LAST,
+            gobject.TYPE_NONE,
+            (gobject.TYPE_BOOLEAN,)
+        ),
+        'show-pulsing-icon-changed':
+        (
+            gobject.SIGNAL_RUN_LAST,
+            gobject.TYPE_NONE,
+            (gobject.TYPE_BOOLEAN,)
+        ),
+        'custom-sound-path-changed':
+        (
+            gobject.SIGNAL_RUN_LAST,
+            gobject.TYPE_NONE,
+            (gobject.TYPE_STRING,)
+        )
+    }
+
+    __gproperties__ = \
+    {
+        'show-remaining-time':
+        (bool,
+         'Show remaining time',
+         'Whether to show remaining time when the timer is running',
+         False,
+         gobject.PARAM_WRITABLE
+        ),
+       'play-sound':
+        (bool,
+         'Play notification sound',
+         'Whether to play notification sound when the timer is finished',
+         False,
+         gobject.PARAM_WRITABLE
+        ),
+       'use-custom-sound':
+        (bool,
+         'Use custom sound',
+         'Whether to use a custom notification sound',
+         False,
+         gobject.PARAM_WRITABLE
+        ),
+       'show-popup-notification':
+        (bool,
+         'Show Popup notification',
+         'Whether to show a popup notifcation when timer finished', 
+         False,
+         gobject.PARAM_WRITABLE
+        ), 
+       'show-pulsing-icon':
+        (bool,
+         'Show pulsing icon',
+         'Whether to show pulsing icon when timer finished', 
+         False,
+         gobject.PARAM_WRITABLE
+        ), 
+       'custom-sound-path':
+        (str,
+         'Custom sound path',
+         'Path to a custom notification sound',
+         '',
+         gobject.PARAM_WRITABLE
+        )
+    }
+                        
+    def __init__(self, glade_file_name):
+        gobject.GObject.__init__(self)
+        glade_widgets = glade.XML(glade_file_name, 'preferences_dialog')
+        self._preferences_dialog = glade_widgets.get_widget('preferences_dialog')
+        self._show_time_check = glade_widgets.get_widget('show_time_check')
+        self._play_sound_check = glade_widgets.get_widget('play_sound_check')
+        self._use_default_sound_radio = glade_widgets.get_widget('use_default_sound_radio')
+        self._use_custom_sound_radio = glade_widgets.get_widget('use_custom_sound_radio')
+        self._sound_chooser_button = glade_widgets.get_widget('sound_chooser_button')
+        self._play_sound_box = glade_widgets.get_widget('play_sound_box')
+        #: Popup notification checkbutton
+        self._popup_notification_check = glade_widgets.get_widget('popup_notification_check')
+        #: Pulsing icon checkbutton
+        self._pulsing_icon_check = glade_widgets.get_widget('pulsing_trayicon_check')
+
+        #######################################################################
+        # Signals
+        #######################################################################
+        self._show_time_check.connect('toggled', self._on_show_time_check_toggled)
+        self._play_sound_check.connect('toggled', self._on_play_sound_check_toggled)
+        self._use_custom_sound_radio.connect('toggled', self._on_use_custom_sound_radio_toggled)
+        #: Popup notification checkbutton 'toggled' signal
+        self._popup_notification_check.connect('toggled', self._on_popup_notification_toggled)
+        #: Pulsing icon checkbutton 'toggled' signal
+        self._pulsing_icon_check.connect('toggled', self._on_pulsing_icon_toggled)
+        
+        self._sound_chooser_button.connect('selection-changed', self._on_sound_chooser_button_selection_changed)
+        self._preferences_dialog.connect('delete-event', gtk.Widget.hide_on_delete)
+        self._preferences_dialog.connect('response', lambda dialog, response_id: self._preferences_dialog.hide())
+    
+    def show(self):
+        self._preferences_dialog.present()
+    
+    def _on_show_time_check_toggled(self, widget):
+        self.emit('show-remaining-time-changed', widget.props.active)
+        
+    def _on_play_sound_check_toggled(self, widget):
+        self.emit('play-sound-changed', widget.props.active)
+        
+    def _on_use_custom_sound_radio_toggled(self, widget):
+        self.emit('use-custom-sound-changed', widget.props.active)
+
+    def _on_popup_notification_toggled(self, widget):
+        """Emit a signal when `self._popup_notification_check` gets toggled in
+        the Preferences dialog window."""
+        self.emit('show-popup-notification-changed', widget.props.active)
+        
+    def _on_pulsing_icon_toggled(self, widget):
+        """Emit a signal when `self._popup_notification_check` gets toggled in
+        the Preferences dialog window."""
+        self.emit('show-pulsing-icon-changed', widget.props.active)
+        
+    def _on_sound_chooser_button_selection_changed(self, chooser_button):
+        filename = chooser_button.get_filename()
+        
+        # Work around an issue where calling set_filename() will cause
+        # 3 selection-changed signals to be emitted: first two will have a None filename
+        # and the third will finally have the desired filename.
+        if filename is not None:
+            print 'Custom sound changed to path: %s' % filename
+            self.emit('custom-sound-path-changed', filename)
+
+    def do_set_property(self, pspec, value):
+        if pspec.name == 'show-remaining-time':
+            self._show_time_check.props.active = value
+        elif pspec.name == 'play-sound':
+            self._play_sound_check.props.active = value
+            self._play_sound_box.props.sensitive = value
+        elif pspec.name == 'use-custom-sound':
+            if value == True:
+                self._use_custom_sound_radio.props.active = True
+                self._sound_chooser_button.props.sensitive = True
+            else:
+                # Note: Setting _use_custom_sound_radio.props.active to False
+                # does not automatically set _use_default_sound_radio.props.active to True
+                self._use_default_sound_radio.props.active = True
+                self._sound_chooser_button.props.sensitive = False
+        elif pspec.name == 'show-popup-notification':
+            self._popup_notification_check.props.active = value
+        elif pspec.name == 'show-pulsing-icon':
+            self._pulsing_icon_check.props.active = value
+        elif pspec.name == 'custom-sound-path':
+            # Prevent infinite loop of events.
+            if self._sound_chooser_button.get_filename() != value:
+                self._sound_chooser_button.set_filename(value)
diff --git a/timer-applet/src/timerapplet/ui/PulseButton.py b/timer-applet/src/timerapplet/ui/PulseButton.py
new file mode 100644
index 00000000..8a9fe48c
--- /dev/null
+++ b/timer-applet/src/timerapplet/ui/PulseButton.py
@@ -0,0 +1,69 @@
+# Copyright (C) 2008 Jimmy Do <[email protected]>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+import math
+import time
+import gobject
+import gtk
+
+class PulseButton(gtk.Button):
+    def __init__(self):
+        super(PulseButton, self).__init__()
+        
+        self._anim_period_seconds = 0.7
+        self._start_time = 0.0
+        self._factor = 0.0
+        
+    def start_pulsing(self):
+        self._start_time = time.time()
+        gobject.timeout_add(10, self._on_timeout)
+        
+    def stop_pulsing(self):
+        self._start_time = 0
+        
+    def _on_timeout(self, data=None):
+        if self._start_time <= 0.0:
+            return False
+        if self.window != None:
+            delta = time.time() - self._start_time
+            
+            if delta > self._anim_period_seconds:
+                delta = self._anim_period_seconds
+                self._start_time = time.time()
+            fraction = delta/self._anim_period_seconds
+            self._factor = math.sin(fraction * math.pi)
+            
+        self.window.invalidate_rect(self.allocation, True)
+        return True
+    
+    def do_expose_event(self, event):
+        gtk.Button.do_expose_event(self, event)
+        if self._start_time > 0:
+            context = event.window.cairo_create()
+            context.rectangle(0, 0, self.allocation.width, self.allocation.height)
+            
+            #color = self.style.bg[gtk.STATE_SELECTED]
+            #color = gtk.gdk.Color(65535, 65535, 65535)
+            color = gtk.gdk.Color(0, 0, 0)
+            red = color.red / 65535.0
+            green = color.green / 65535.0
+            blue = color.blue / 65535.0
+            context.set_source_rgba(red, green, blue, self._factor * 0.8)
+            context.fill()
+        
+        return False
+
+gobject.type_register(PulseButton)
diff --git a/timer-applet/src/timerapplet/ui/ScrollableButtonList.py b/timer-applet/src/timerapplet/ui/ScrollableButtonList.py
new file mode 100644
index 00000000..2f8bb378
--- /dev/null
+++ b/timer-applet/src/timerapplet/ui/ScrollableButtonList.py
@@ -0,0 +1,65 @@
+# Copyright (C) 2008 Jimmy Do <[email protected]>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+import gtk
+
+def get_scroll_value_to_reveal_widget(widget_rect, viewport_rect, scroll_val):
+    if widget_rect.y < scroll_val:
+        scroll_val = widget_rect.y
+    elif widget_rect.y + widget_rect.height + 1 > scroll_val + viewport_rect.height:
+        scroll_val = widget_rect.y + widget_rect.height + 1 - viewport_rect.height    
+    return scroll_val
+
+class ScrollableButtonList(gtk.ScrolledWindow):
+    def __init__(self):
+        gtk.ScrolledWindow.__init__(self)
+        
+        self._vadjust = gtk.Adjustment()
+        self._vbox = gtk.VBox()
+        self._viewport = gtk.Viewport()
+        
+        self.set_vadjustment(self._vadjust)
+        self.set_policy(gtk.POLICY_NEVER, gtk.POLICY_AUTOMATIC)
+        self._viewport.modify_bg(gtk.STATE_NORMAL, self.style.base[gtk.STATE_NORMAL])
+        
+        self._viewport.add(self._vbox)
+        self.add(self._viewport)
+        
+        self._vbox.show()
+        self._viewport.show()
+        
+    def add_button(self, button):
+        button.connect('focus-in-event', self._on_focus)
+        button.connect('clicked', self._on_clicked)
+        self._vbox.pack_start(button, False, False)
+        
+    def get_buttons(self):
+        return self._vbox.get_children()
+        
+    def _on_focus(self, widget, event):
+        self._scroll_to_widget(widget)
+        
+    def _on_clicked(self, widget):
+        self._scroll_to_widget(widget)
+        
+    def _scroll_to_widget(self, widget):
+        cur_val = self._vadjust.get_value()
+        new_val = get_scroll_value_to_reveal_widget(widget.allocation, self._viewport.allocation, cur_val)
+        
+        if new_val != cur_val:
+            self._vadjust.set_value(new_val)
+            self._vadjust.value_changed()
+    
diff --git a/timer-applet/src/timerapplet/ui/StartNextTimerDialog.py b/timer-applet/src/timerapplet/ui/StartNextTimerDialog.py
new file mode 100644
index 00000000..ad9aca1b
--- /dev/null
+++ b/timer-applet/src/timerapplet/ui/StartNextTimerDialog.py
@@ -0,0 +1,66 @@
+# -*- mode: python; coding: utf-8; -*-
+# Copyright (C) 2010 Kenny Meyer <[email protected]>
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+"""
+The Start Next Timer dialog
+
+When a timer ended and the auto_start option was disabled this dialog shows up.
+"""
+
+from gettext import gettext as _
+import gtk
+
+class StartNextTimerDialog(object):
+    def __init__(self, glade_file_name, header_text, body_text):
+        # TODO: Include next_timer in body_text
+        self._dialog = gtk.Dialog(
+            _("Start Next Timer"),
+            None,
+            gtk.DIALOG_DESTROY_WITH_PARENT,
+            (_("_Don't start next timer"), gtk.RESPONSE_CLOSE,
+             _("_Start next timer"), gtk.RESPONSE_YES))
+        self._dialog.props.border_width = 6
+        self._dialog.props.has_separator = False
+        self._dialog.props.resizable = False
+        self._dialog.vbox.props.spacing = 12
+        self._dialog.set_default_response(gtk.RESPONSE_YES)
+
+        hbox = gtk.HBox(False, 0)
+        hbox.props.spacing = 12
+        hbox.props.border_width = 6
+        
+        image = gtk.image_new_from_stock(gtk.STOCK_DIALOG_QUESTION, gtk.ICON_SIZE_DIALOG)
+        image.props.yalign = 0.0
+        
+        label = gtk.Label('<span weight="bold" size="larger">%s</span>\n\n%s' % (header_text, body_text))
+        label.props.use_markup = True
+        label.props.wrap = True
+        label.props.yalign = 0.0
+        
+        hbox.pack_start(image, False, False, 0)
+        hbox.pack_start(label, False, False, 0)
+        self._dialog.vbox.pack_start(hbox, False, False, 0)
+        
+        hbox.show_all()
+
+    def get_response(self):
+        dialog_result = self._dialog.run()
+        self._dialog.hide()
+        if dialog_result == gtk.RESPONSE_YES:
+            return True
+        else:
+            return False
+
diff --git a/timer-applet/src/timerapplet/ui/StartTimerDialog.py b/timer-applet/src/timerapplet/ui/StartTimerDialog.py
new file mode 100644
index 00000000..69728c73
--- /dev/null
+++ b/timer-applet/src/timerapplet/ui/StartTimerDialog.py
@@ -0,0 +1,267 @@
+# Copyright (C) 2008 Jimmy Do <[email protected]>
+# Copyright (C) 2010 Kenny Meyer <[email protected]>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+import gobject
+import gtk
+import gtk.glade as glade
+import gtk.gdk as gdk
+import pango
+
+from gettext import gettext as _
+from shlex import split as shell_tokenize
+from subprocess import check_call, CalledProcessError
+
+from DurationChooser import DurationChooser
+from ScrollableButtonList import ScrollableButtonList
+
+class StartTimerDialog(gobject.GObject):
+    __gsignals__ = {'clicked-start':
+                        (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, ()),
+                    'clicked-cancel':
+                        (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, ()),
+                    'clicked-manage-presets':
+                        (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, ()),
+                    'clicked-save':
+                        (gobject.SIGNAL_RUN_LAST,
+                         gobject.TYPE_NONE,
+                         (gobject.TYPE_STRING,
+                          gobject.TYPE_INT,
+                          gobject.TYPE_INT,
+                          gobject.TYPE_INT,
+                          gobject.TYPE_STRING,
+                          gobject.TYPE_STRING,
+                          gobject.TYPE_BOOLEAN)),
+                    'clicked-preset':
+                        (gobject.SIGNAL_RUN_LAST,
+                         gobject.TYPE_NONE,
+                         (gobject.TYPE_PYOBJECT,)),
+                    'double-clicked-preset':
+                        (gobject.SIGNAL_RUN_LAST,
+                         gobject.TYPE_NONE,
+                         (gobject.TYPE_PYOBJECT,))}
+
+    def __init__(self, glade_file_name, name_validator_func, presets_store, preset_display_func):
+        gobject.GObject.__init__(self)
+
+        self._valid_name_func = name_validator_func;
+        self._presets_store = presets_store
+        self._preset_display_func = preset_display_func
+        
+        self._presets_list = ScrollableButtonList()
+        labels_size_group = gtk.SizeGroup(gtk.SIZE_GROUP_HORIZONTAL)
+        self._duration_chooser = DurationChooser(labels_size_group)
+        
+        glade_widgets = glade.XML(glade_file_name, 'start_timer_dialog')
+        self._dialog = glade_widgets.get_widget('start_timer_dialog')
+        self._ok_button = glade_widgets.get_widget('ok_button')
+        name_label = glade_widgets.get_widget('name_label')
+        self._name_entry = glade_widgets.get_widget('name_entry')
+        self._save_button = glade_widgets.get_widget('save_button')
+        duration_chooser_container = glade_widgets.get_widget('duration_chooser_container')
+        presets_chooser_container = glade_widgets.get_widget('presets_chooser_container')
+        self._presets_section = glade_widgets.get_widget('presets_section')
+        #: The TextEntry control for running a custom command
+        self._command_entry = glade_widgets.get_widget('command_entry')
+        #: The "Invalid Command" label
+        self._invalid_cmd_label = glade_widgets.get_widget('invalid_command_label')
+        #: The next timer combo box
+        self._next_timer_combo = glade_widgets.get_widget('next_timer_combo_entry')
+        self._next_timer_combo.set_model(self._presets_store)
+        self._next_timer_combo.set_text_column(0) # The column to be shown
+        #: The auto-start check button.
+        self._auto_start_check = glade_widgets.get_widget('auto_start_check')
+        
+        labels_size_group.add_widget(name_label)
+        self._dialog.set_default_response(gtk.RESPONSE_OK)
+        duration_chooser_container.pack_start(self._duration_chooser)
+        presets_chooser_container.pack_start(self._presets_list)
+        
+        self._dialog.connect('response', self._on_dialog_response)
+        self._dialog.connect('delete-event', self._dialog.hide_on_delete)
+        self._dialog.add_events(gdk.BUTTON_PRESS_MASK)
+        self._duration_chooser.connect('duration-changed', self._on_duration_changed)
+        self._name_entry.connect('changed', self._on_name_entry_changed)
+        self._save_button.connect('clicked', self._on_save_button_clicked)
+        # Check that executable is valid while inserting text
+        self._command_entry.connect('changed', self._check_is_valid_command)
+        self._next_timer_combo.child.connect("changed",
+                                self._on_next_timer_combo_entry_child_changed)
+        glade_widgets.get_widget('manage_presets_button').connect('clicked',
+                                                                  self._on_manage_presets_button_clicked)
+        self._presets_store.connect('row-deleted',
+                                    lambda model, row_path: self._update_presets_list())
+        self._presets_store.connect('row-changed',
+                                    lambda model, row_path, row_iter: self._update_presets_list())
+        
+        self._update_presets_list()
+        self._duration_chooser.show()
+        self._presets_list.show()
+
+    def show(self):
+        if not self._dialog.props.visible:
+            self._duration_chooser.clear()
+            self._duration_chooser.focus_hours()
+            self._name_entry.set_text('')
+        self._check_for_valid_start_timer_input()
+        self._check_for_valid_save_preset_input()
+        self._dialog.present()
+        
+    def hide(self):
+        self._dialog.hide()
+        
+    def get_control_data(self):
+        """Return name and duration in a tuple.
+        
+        The returned tuple is in this format: 
+            
+            (name, hours, minutes, seconds, next_timer, auto_start)
+        
+        """
+        return (self._name_entry.get_text().strip(),) + \
+                self._duration_chooser.get_duration() + \
+                (self._command_entry.get_text().strip(),
+                 self._next_timer_combo.child.get_text().strip(),
+                 self._auto_start_check.get_active())
+        
+    def set_name_and_duration(self, name, hours, minutes, seconds, *args):
+        self._name_entry.set_text(name)
+        self._command_entry.set_text(args[0])
+        self._next_timer_combo.child.set_text(args[1])
+        self._auto_start_check.set_active(args[2])
+        self._duration_chooser.set_duration(hours, minutes, seconds)
+
+    def _update_presets_list(self):
+        self._check_for_valid_save_preset_input()
+
+        if len(self._presets_store) == 0:
+            self._presets_section.hide()
+            
+            # Make window shrink
+            self._dialog.resize(1, 1)
+        else:
+            self._presets_section.show()
+            
+        for button in self._presets_list.get_buttons():
+            button.destroy()
+            
+        row_iter = self._presets_store.get_iter_first()
+        while row_iter is not None:
+            name = self._preset_display_func(row_iter)
+            label = gtk.Label(name)
+            label.set_ellipsize(pango.ELLIPSIZE_END)
+            button = gtk.Button()
+            button.set_relief(gtk.RELIEF_NONE)
+            button.add(label)
+            self._presets_list.add_button(button)
+            
+            button.connect('clicked', 
+                           self._on_preset_button_clicked,
+                           self._presets_store.get_path(row_iter))
+            button.connect('button_press_event',
+                           self._on_preset_button_double_clicked,
+                           self._presets_store.get_path(row_iter))
+            
+            label.show()
+            button.show()
+            
+            row_iter = self._presets_store.iter_next(row_iter)
+    
+    def _check_is_valid_command(self, widget, data=None):
+        """
+        Check that input in the command entry TextBox control is a valid
+        executable.
+        """
+        try:
+            data = widget.get_text()
+            executable = shell_tokenize(data)[0]
+            # Check if command in path, else raise CalledProcessError
+            # The idea of using `which` to check if a command is in PATH
+            # originated from the Python mailing list.
+            check_call(['which', executable])
+            self._invalid_cmd_label.set_label('')
+        except (ValueError, IndexError, CalledProcessError):
+            self._invalid_cmd_label.set_label(_("<b>Command not found.</b>"))
+            if data is '':
+                self._invalid_cmd_label.set_label('')
+
+    def _non_zero_duration(self):
+        (hours, minutes, seconds) = self._duration_chooser.get_duration()
+        return (hours > 0 or minutes > 0 or seconds > 0)
+
+    def _check_for_valid_save_preset_input(self):
+        self._save_button.props.sensitive = (self._non_zero_duration() and
+                                             self._valid_name_func(self._name_entry.get_text()))
+        # TODO: Add validator for next_timer_combo
+    
+    def _check_for_valid_start_timer_input(self):
+        self._ok_button.props.sensitive = self._non_zero_duration()
+    
+    def _on_preset_button_clicked(self, button, row_path):
+        self.emit('clicked-preset', row_path)
+
+    def _on_preset_button_double_clicked(self, button, event, row_path):
+        """Emit the `double-clicked-preset' signal."""
+        # Check that the double-click event shot off on the preset button
+        if event.type == gdk._2BUTTON_PRESS:
+            self.emit('double-clicked-preset', row_path)
+
+    def _on_manage_presets_button_clicked(self, button):
+        self.emit('clicked-manage-presets')
+    
+    def _on_duration_changed(self, data=None):
+        self._check_for_valid_start_timer_input()
+        self._check_for_valid_save_preset_input()
+    
+    def _on_name_entry_changed(self, entry):
+        self._check_for_valid_save_preset_input()
+
+    def _on_dialog_response(self, dialog, response_id):
+        if response_id == gtk.RESPONSE_OK:
+            self._duration_chooser.normalize_fields()
+            self.emit('clicked-start')
+        elif response_id == gtk.RESPONSE_CANCEL:
+            self.emit('clicked-cancel')
+        self._dialog.hide()
+        
+    def _on_save_button_clicked(self, button):
+        self._duration_chooser.normalize_fields()
+        (hours, minutes, seconds) = self._duration_chooser.get_duration()
+        name = self._name_entry.get_text()
+        command = self._command_entry.get_text()
+        next_timer = self._next_timer_combo.child.get_text()
+        auto_start = self._auto_start_check.get_active()
+        self.emit('clicked-save', name, hours, minutes, seconds, command,
+                  next_timer, auto_start)
+
+    def _on_next_timer_combo_entry_child_changed(self, widget, data=None):
+        """Validate selection of the Next Timer ComboBoxEntry."""
+        modelfilter = self._presets_store.filter_new()
+        # Loop through all rows in ListStore
+        # TODO: Using a generator may be more memory efficient in this case.
+        for row in modelfilter:
+            # Check that name of preset is the exact match of the the text in
+            # the ComboBoxEntry
+            if widget.get_text() == row[0]:
+                # Yes, it matches! Make the auto-start checkbox sensitive
+                # (activate it).
+                self._auto_start_check.set_sensitive(True)
+                break
+            else:
+                # If value of ComboBoxEntry is None then de-activate the
+                # auto-start checkbox.
+                self._auto_start_check.set_sensitive(False)
+
diff --git a/timer-applet/src/timerapplet/ui/StatusButton.py b/timer-applet/src/timerapplet/ui/StatusButton.py
new file mode 100644
index 00000000..cde076fe
--- /dev/null
+++ b/timer-applet/src/timerapplet/ui/StatusButton.py
@@ -0,0 +1,101 @@
+# Copyright (C) 2008 Jimmy Do <[email protected]>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+import gtk
+from PulseButton import PulseButton
+from PieMeter import PieMeter
+
+class StatusButton(PulseButton):
+    def __init__(self):
+        PulseButton.__init__(self)
+        
+        self._tooltip = gtk.Tooltip()
+
+        self._icon_widget = gtk.Image()        
+        self._pie_meter = PieMeter()
+        self._label_widget = gtk.Label()
+        self._visual_box = gtk.HBox()
+        
+        self._visual_box.pack_start(self._icon_widget)
+        self._visual_box.pack_start(self._pie_meter)
+        
+        self._layout_box = None
+        self._use_vertical = None
+        self.set_use_vertical_layout(False)
+        
+        # _pie_meter will default to visible while
+        # _icon_widget will default to hidden.
+        self._pie_meter.show()
+        self._visual_box.show()
+        self._label_widget.show()
+    
+    def set_tooltip(self, tip_text):
+        self._tooltip.set_text(tip_text)
+    
+    def set_label(self, text):
+        self._label_widget.set_text(text)
+        
+    def set_icon(self, image_path):
+        self._icon_widget.set_from_pixbuf(gtk.gdk.pixbuf_new_from_file_at_size(image_path, -1, 20))
+        #elf._icon_widget.set_from_file(image_path)
+        
+    def set_use_icon(self, use_icon):
+        if use_icon:
+            self._pie_meter.hide()
+            self._icon_widget.show()
+        else:
+            self._pie_meter.show()
+            self._icon_widget.hide()
+        
+    def set_sensitized(self, sensitized):
+        self._label_widget.props.sensitive = sensitized
+        
+    def set_show_remaining_time(self, show_remaining_time):
+        if show_remaining_time:
+            self._label_widget.show()
+        else:
+            self._label_widget.hide()
+            
+    def set_progress(self, progress):
+        self._pie_meter.set_progress(progress)
+
+    def set_use_vertical_layout(self, use_vertical):
+        if self._use_vertical == use_vertical:
+            return
+        
+        self._use_vertical = use_vertical
+        if self._layout_box is not None:
+            self._layout_box.remove(self._visual_box)
+            self._layout_box.remove(self._label_widget)
+            self.remove(self._layout_box)
+            self._layout_box.destroy()
+            self._layout_box = None
+        
+        new_layout_box = None
+        if self._use_vertical:
+            new_layout_box = gtk.VBox(False, 2)
+        else:
+            new_layout_box = gtk.HBox(False, 2)
+        
+        new_layout_box.pack_start(self._visual_box, True, True, 0)
+        new_layout_box.pack_start(self._label_widget, False, False, 0)
+        
+        self._layout_box = new_layout_box
+        self.add(self._layout_box)
+        self._layout_box.show()
+        
+    def set_pie_fill_color(self, red, green, blue):
+        self._pie_meter.set_fill_color(red, green, blue)
diff --git a/timer-applet/src/timerapplet/ui/__init__.py b/timer-applet/src/timerapplet/ui/__init__.py
new file mode 100644
index 00000000..2b0b05ba
--- /dev/null
+++ b/timer-applet/src/timerapplet/ui/__init__.py
@@ -0,0 +1,28 @@
+# Copyright (C) 2008 Jimmy Do <[email protected]>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+from AddEditPresetDialog import AddEditPresetDialog
+from ContinueTimerDialog import ContinueTimerDialog
+from DurationChooser import DurationChooser
+from ManagePresetsDialog import ManagePresetsDialog
+from Notifier import Notifier
+from PieMeter import PieMeter
+from PreferencesDialog import PreferencesDialog
+from PulseButton import PulseButton
+from ScrollableButtonList import ScrollableButtonList
+from StartTimerDialog import StartTimerDialog
+from StartNextTimerDialog import StartNextTimerDialog
+from StatusButton import StatusButton