class Document:
"""This holds everything releated to the animation itself"""
def __init__(self, anim_):
self.anim = anim_
# This is the time line object that if at to bottom of
# the screen.
self.timeline = Timeline(self.anim)
# The list of all the user's objects
self.animlist = []
# This stores the Z order list of items at a given time.
# The key is the time (number) and the value is
# a list of items id in the order they appear on screen.
self.zorder = {}
# Create our rootitem. We put each canvas item in it so at the end we
# only have to kill it. The canvas deletes all the items it contains
# automaticaly.
self.rootitem = goocanvas.Group(
parent=self.anim.gcomprisBoard.canvas.get_root_item())
self.pickle_protocol = 2
self.format_string = {'gcompris': 'GCompris anim 3 cPikle file'}
def __del__(self):
self.rootitem.remove()
def refresh(self, time):
# We keep all object in a unique list
# Here we call them to give them a chance to
# display them if they have to
for item in self.animlist:
item.display_at_time(time)
self.restore_zorder()
# If an item is removed, we must remove it from all
# the timelines in which we saved a z_order
def delete_from_zorder(self, item_id):
for z_order in self.zorder.values():
try:
z_order.remove(item_id)
except ValueError:
pass
def save_zorder(self):
z_order = []
for i in range(self.rootitem.get_n_children()):
item = self.rootitem.get_child(i)
if item.props.visibility == goocanvas.ITEM_VISIBLE:
z_order.append(item.get_data("id"))
self.zorder[self.timeline.get_time()] = z_order
def restore_zorder(self):
z_order = []
if self.timeline.get_time() in self.zorder:
z_order = self.zorder[self.timeline.get_time()]
for i in range(self.rootitem.get_n_children()):
item = self.rootitem.get_child(i)
if item:
item_id = item.get_data("id")
try:
z_index = z_order.index(item_id)
self.rootitem.move_child(i, z_index)
except ValueError:
pass
def anim_to_file(self, filename):
file = open(filename, 'wb')
# Save the descriptif frame:
pickle.dump(self.format_string['gcompris'], file, self.pickle_protocol)
# Save the last mark
pickle.dump(self.timeline.get_lastmark(), file, self.pickle_protocol)
# Save the animation
pickle.dump(self.animlist, file, self.pickle_protocol)
# Save the z order
pickle.dump(self.zorder, file, self.pickle_protocol)
file.close()
def file_to_anim(self, filename):
file = open(filename, 'rb')
try:
desc = pickle.load(file)
except:
file.close()
print 'Cannot load ', filename, " as a GCompris animation"
return
if type(desc) == type('str'):
# string
if 'desc' != self.format_string['gcompris']:
if (desc == 'GCompris anim 3 cPikle file'):
self.anim.deselect()
for item in self.animlist[:]:
item.delete()
self.timeline.set_lastmark(pickle.load(file))
self.animlist = pickle.load(file)
for item in self.animlist:
item.restore(self.anim)
self.zorder = pickle.load(file)
# Restore is complete
self.timeline.set_time(0)
self.refresh(0)
else:
print "ERROR: Unrecognized file format, file", filename, ' has description : ', desc
file.close()
return
else:
print "ERROR: Unrecognized file format (desc), file", filename, ' has description : ', desc
file.close()
return
elif type(desc) == type(1):
print filename, 'has no description. Are you sure it\'s', \
self.format_string['gcompris'],'?'
file.close()
class Document:
"""This holds everything releated to the animation itself"""
def __init__(self, anim_):
self.anim = anim_
# This is the time line object that if at to bottom of
# the screen.
self.timeline = Timeline(self.anim)
# The list of all the user's objects
self.animlist = []
# This stores the Z order list of items at a given time.
# The key is the time (number) and the value is
# a list of items id in the order they appear on screen.
self.zorder = {}
# Set to true when the order or the list of object has changed
self.zorderDirty = False
# Create our rootitem. We put each canvas item in it so at the end we
# only have to kill it. The canvas deletes all the items it contains
# automaticaly.
self.rootitem = goocanvas.Group(
parent = self.anim.gcomprisBoard.canvas.get_root_item())
self.pickle_protocol = 2
self.format_string = { 'gcompris' : 'GCompris anim 3 cPikle file' }
def __del__(self):
self.rootitem.remove()
def refresh(self, time):
# We keep all object in a unique list
# Here we call them to give them a chance to
# display them if they have to
for item in self.animlist:
item.display_at_time(time)
self.restore_zorder()
def zorder_dirty(self):
self.zorderDirty = True
def save_zorder(self):
if not self.zorderDirty:
return
z_order = []
for i in range(self.rootitem.get_n_children()):
item = self.rootitem.get_child(i)
if item.props.visibility == goocanvas.ITEM_VISIBLE:
z_order.append(item.get_data("id"))
self.zorder[self.timeline.get_time()] = z_order
self.zorderDirty = False
def restore_zorder(self):
z_order = []
if self.timeline.get_time() in self.zorder:
z_order = self.zorder[self.timeline.get_time()]
else:
return
# Build the list of items_is present in the image
present_items = []
for i in range(self.rootitem.get_n_children()):
item = self.rootitem.get_child(i)
if item:
present_items.append( item.get_data("id") )
# Remove items in z_order that are not in present_items
z_order = [item for item in z_order if item in present_items]
for z_item_id in z_order:
for i in range(self.rootitem.get_n_children()):
item = self.rootitem.get_child(i)
if item:
item_id = item.get_data("id")
if ( item_id == z_item_id ):
z_index = z_order.index(item_id)
if ( i != z_index ):
try:
self.rootitem.move_child(i, z_index);
break
except ValueError:
pass
def anim_to_file(self, filename):
file = open(filename, 'wb')
# Save the descriptif frame:
pickle.dump(self.format_string['gcompris'], file, self.pickle_protocol)
# Save the last mark
pickle.dump(self.timeline.get_lastmark(), file, self.pickle_protocol)
# Save the animation
pickle.dump(self.animlist, file, self.pickle_protocol)
# Save the z order
pickle.dump(self.zorder, file, self.pickle_protocol)
file.close()
def file_to_anim(self, filename):
file = open(filename, 'rb')
try:
desc = pickle.load(file)
except:
file.close()
print 'Cannot load ', filename , " as a GCompris animation"
return
if type(desc) == type('str'):
# string
if 'desc' != self.format_string['gcompris']:
if (desc == 'GCompris anim 3 cPikle file'):
self.anim.deselect()
for item in self.animlist[:]:
item.delete()
self.timeline.set_lastmark(pickle.load(file))
self.animlist = pickle.load(file)
for item in self.animlist:
item.restore(self.anim)
self.zorder = pickle.load(file)
# Restore is complete
self.timeline.set_time(0)
self.refresh(0)
else:
print "ERROR: Unrecognized file format, file", filename, ' has description : ', desc
file.close()
return
else:
print "ERROR: Unrecognized file format (desc), file", filename, ' has description : ', desc
file.close()
return
elif type(desc) == type(1):
print filename, 'has no description. Are you sure it\'s', \
self.format_string['gcompris'],'?'
file.close()
