Implement zooming levels, actual view still empty

shell/Makefile.am

@@ -6,6 +6,7 @@ bin_SCRIPTS = 				\
 	sugar-activity-factory		\
 	sugar-console			\
 	sugar-people			\
+	sugar-zoom			\
 	sugar-presence-service
 
 sugardir = $(pkgdatadir)/shell

shell/Shell.py

@@ -37,7 +37,20 @@ class ShellDbusService(dbus.service.Object):
 	def show_console(self):
 		gobject.idle_add(self.__show_console_idle)
 
+	@dbus.service.method('com.redhat.Sugar.Shell')
+	def zoom_in(self):
+		self._shell.zoom_in()
+
+	@dbus.service.method('com.redhat.Sugar.Shell')
+	def zoom_out(self):
+		self._shell.zoom_out()
+
 class Shell(gobject.GObject):
+	ZOOM_MESH = 0
+	ZOOM_FRIENDS = 1
+	ZOOM_HOME = 2
+	ZOOM_ACTIVITY = 3
+
 	__gsignals__ = {
 		'activity-opened': (gobject.SIGNAL_RUN_FIRST,
 							gobject.TYPE_NONE, ([gobject.TYPE_PYOBJECT])),
@@ -51,6 +64,7 @@ class Shell(gobject.GObject):
 		self._screen = wnck.screen_get_default()
 		self._registry = registry
 		self._hosts = {}
+		self._zoom_level = Shell.ZOOM_HOME
 
 	def start(self):
 		session_bus = dbus.SessionBus()
@@ -159,3 +173,28 @@ class Shell(gobject.GObject):
 
 	def get_chat_controller(self):
 		return self._chat_controller
+
+	def _set_zoom_level(self, level):
+		self._zoom_level = level
+
+		if level == Shell.ZOOM_ACTIVITY:
+			self._screen.toggle_showing_desktop(False)
+		else:
+			self._screen.toggle_showing_desktop(True)
+
+		if level == Shell.ZOOM_HOME:
+			self._home_window.set_view(HomeWindow.HOME_VIEW)
+		elif level == Shell.ZOOM_FRIENDS:
+			self._home_window.set_view(HomeWindow.FRIENDS_VIEW)
+		elif level == Shell.ZOOM_MESH:
+			self._home_window.set_view(HomeWindow.MESH_VIEW)
+
+	def zoom_in(self):
+		level = self._zoom_level + 1
+		if level <= Shell.ZOOM_ACTIVITY:
+			self._set_zoom_level(level)
+
+	def zoom_out(self):
+		level = self._zoom_level - 1
+		if level >= Shell.ZOOM_MESH:
+			self._set_zoom_level(level)

shell/data/Makefile.am

@@ -1,8 +1,4 @@
 confdir = $(pkgdatadir)
 conf_DATA = kbdconfig
 
-imagesdir = $(pkgdatadir)
-images_DATA =			\
-	home-background.png
-
-EXTRA_DIST = $(conf_DATA) $(images_DATA)
+EXTRA_DIST = $(conf_DATA)

shell/data/kbdconfig

@@ -5,7 +5,7 @@
 <Alt>n=next
 <Alt>p=prev
 <Alt>c=close
-f1=desktop
-f2=!sugar-people
-f3=!sugar-console
+f1=!sugar-zoom out
+f2=!sugar-zoom in
+f3=!sugar-people
 f4=!sugar-activity org.sugar.Terminal

shell/home/FriendsView.py

@@ -0,0 +1,20 @@
+import goocanvas
+
+class Model(goocanvas.CanvasModelSimple):
+	def __init__(self, shell):
+		goocanvas.CanvasModelSimple.__init__(self)
+
+		root = self.get_root_item()
+
+class FriendsView(goocanvas.CanvasView):
+	def __init__(self, shell):
+		goocanvas.CanvasView.__init__(self)
+		self._shell = shell
+
+		self.connect("item_view_created", self.__item_view_created_cb)
+
+		canvas_model = Model(shell)
+		self.set_model(canvas_model)
+
+	def __item_view_created_cb(self, view, item_view, item):
+		pass

shell/home/HomeWindow.py

@@ -2,8 +2,13 @@ import gtk
 
 from home.MeshView import MeshView
 from home.HomeView import HomeView
+from home.FriendsView import FriendsView
 
 class HomeWindow(gtk.Window):
+	HOME_VIEW = 0
+	FRIENDS_VIEW = 1
+	MESH_VIEW = 2
+
 	def __init__(self, shell):
 		gtk.Window.__init__(self)
 
@@ -18,6 +23,11 @@ class HomeWindow(gtk.Window):
 		self._setup_canvas(home_view)
 		home_view.show()
 
+		friends_view = FriendsView(shell)
+		self._nb.append_page(friends_view)
+		self._setup_canvas(friends_view)
+		friends_view.show()
+		
 		mesh_view = MeshView(shell)
 		self._setup_canvas(mesh_view)
 		self._nb.append_page(mesh_view)
@@ -26,6 +36,9 @@ class HomeWindow(gtk.Window):
 		self.add(self._nb)
 		self._nb.show()
 
+	def set_view(self, view):
+		self._nb.set_current_page(view)
+
 	def _setup_canvas(self, canvas):
 		canvas.set_bounds(0, 0, 1200, 900)
 		canvas.set_scale(float(800) / float(1200))

shell/home/Makefile.am

@@ -1,6 +1,7 @@
 sugardir = $(pkgdatadir)/shell
 sugar_PYTHON =				\
 	__init__.py			\
+	FriendsView.py			\
 	MeshView.py			\
 	HomeView.py			\
-	Window.py
+	HomeWindow.py

shell/sugar-zoom

@@ -0,0 +1,14 @@
+#!/usr/bin/python
+import sys
+
+import dbus
+import dbus.glib
+
+bus = dbus.SessionBus()
+proxy_obj = bus.get_object('com.redhat.Sugar.Shell', '/com/redhat/Sugar/Shell')
+shell = dbus.Interface(proxy_obj, 'com.redhat.Sugar.Shell')
+
+if sys.argv[1] == 'in':
+	shell.zoom_in()
+elif sys.argv[1] == 'out':
+	shell.zoom_out()