def get_tasks_tree(self):
'''This create a liblarch tree suitable for tasks,
including default filters
For tags, filter are dynamically created at Tag insertion.
'''
tasktree = Tree()
f_dic = {
'workview': [self.workview],
'active': [self.active],
'closed': [self.closed, {'flat': True}],
'notag': [self.notag],
'workable': [self.is_workable],
'started': [self.is_started],
'workdue': [self.workdue],
'workstarted': [self.workstarted],
'worktostart': [self.worktostart],
'worklate': [self.worklate],
'no_disabled_tag': [self.no_disabled_tag],
}
for f in f_dic:
filt = f_dic[f]
if len(filt) > 1:
param = filt[1]
else:
param = None
tasktree.add_filter(f, filt[0], param)
self.tasktree = tasktree
return tasktree
def get_tasks_tree(self):
'''This create a liblarch tree suitable for tasks,
including default filters
For tags, filter are dynamically created at Tag insertion.
'''
tasktree = Tree()
f_dic = {
'workview': [self.workview],
'active': [self.active],
'closed': [self.closed, {
'flat': True
}],
'notag': [self.notag],
'workable': [self.is_workable],
'started': [self.is_started],
'workdue': [self.workdue],
'workstarted': [self.workstarted],
'worktostart': [self.worktostart],
'worklate': [self.worklate],
'no_disabled_tag': [self.no_disabled_tag],
}
for f in f_dic:
filt = f_dic[f]
if len(filt) > 1:
param = filt[1]
else:
param = None
tasktree.add_filter(f, filt[0], param)
self.tasktree = tasktree
return tasktree
def get_tasks_tree(self):
"""This create a liblarch tree suitable for tasks,
including default filters
For tags, filter are dynamically created at Tag insertion.
"""
tasktree = Tree()
f_dic = {
"workview": [self.workview],
"active": [self.active],
"closed": [self.closed, {"flat": True}],
"notag": [self.notag],
"workable": [self.is_workable],
"started": [self.is_started],
"workdue": [self.workdue],
"workstarted": [self.workstarted],
"worktostart": [self.worktostart],
"worklate": [self.worklate],
"no_disabled_tag": [self.no_disabled_tag],
}
for f in f_dic:
filt = f_dic[f]
if len(filt) > 1:
param = filt[1]
else:
param = None
tasktree.add_filter(f, filt[0], param)
self.tasktree = tasktree
return tasktree
def get_tags_tree(self, req):
"""This create a liblarch tree suitable for tags,
including the all_tags_tag and notag_tag.
"""
tagtree = Tree()
# Build the "all tasks tag"
alltag = tag.Tag(tag.ALLTASKS_TAG, req=req)
alltag.set_attribute("special", "all")
alltag.set_attribute("label", "%s"
% _("All tasks"))
alltag.set_attribute("icon", "emblem-documents-symbolic")
alltag.set_attribute("order", 0)
tagtree.add_node(alltag)
p = {}
self.tasktree.add_filter(tag.ALLTASKS_TAG,
self.alltag, parameters=p)
# Build the "without tag tag"
notag_tag = tag.Tag(tag.NOTAG_TAG, req=req)
notag_tag.set_attribute("special", "notag")
notag_tag.set_attribute("label", "%s"
% _("Tasks with no tags"))
notag_tag.set_attribute("icon", "task-past-due-symbolic")
notag_tag.set_attribute("order", 2)
tagtree.add_node(notag_tag)
p = {}
self.tasktree.add_filter(tag.NOTAG_TAG,
self.notag, parameters=p)
# Build the search tag
search_tag = tag.Tag(tag.SEARCH_TAG, req=req)
search_tag.set_attribute("special", "search")
search_tag.set_attribute("label", _("Saved searches"))
search_tag.set_attribute("icon", "system-search-symbolic")
search_tag.set_attribute("order", 1)
tagtree.add_node(search_tag)
p = {}
self.tasktree.add_filter(tag.SEARCH_TAG,
search_filter, parameters=p)
# Build the separator
sep_tag = tag.Tag(tag.SEP_TAG, req=req)
sep_tag.set_attribute("special", "sep")
sep_tag.set_attribute("order", 3)
tagtree.add_node(sep_tag)
# Filters
tagtree.add_filter('activetag', self.actively_used_tag)
tagtree.add_filter('usedtag', self.used_tag)
activeview = tagtree.get_viewtree(name='activetags', refresh=False)
activeview.apply_filter('activetag')
# This view doesn't seem to be used. So it's not useful to build it now
# usedview = tagtree.get_viewtree(name='usedtags',refresh=False)
# usedview.apply_filter('usedtag')
self.tagtree = tagtree
self.tagtree_loaded = True
return tagtree
def get_tags_tree(self, req):
"""This create a liblarch tree suitable for tags,
including the all_tags_tag and notag_tag.
"""
tagtree = Tree()
### building the initial tags
# Build the "all tasks tag"
alltag = Tag(CoreConfig.ALLTASKS_TAG, req=req)
alltag.set_attribute("special", "all")
alltag.set_attribute("label", "<span weight='bold'>%s</span>" % _("All tasks"))
alltag.set_attribute("icon", "gtg-tags-all")
alltag.set_attribute("order", 0)
tagtree.add_node(alltag)
p = {}
self.tasktree.add_filter(CoreConfig.ALLTASKS_TAG, self.alltag, parameters=p)
# Build the "without tag tag"
notag_tag = Tag(CoreConfig.NOTAG_TAG, req=req)
notag_tag.set_attribute("special", "notag")
notag_tag.set_attribute("label", "<span weight='bold'>%s</span>" % _("Tasks with no tags"))
notag_tag.set_attribute("icon", "gtg-tags-none")
notag_tag.set_attribute("order", 2)
tagtree.add_node(notag_tag)
p = {}
self.tasktree.add_filter(CoreConfig.NOTAG_TAG, self.notag, parameters=p)
# Build the search tag
search_tag = Tag(CoreConfig.SEARCH_TAG, req=req)
search_tag.set_attribute("special", "search")
search_tag.set_attribute("label", "<span weight='bold'>%s</span>" % _("Search"))
search_tag.set_attribute("icon", "search")
search_tag.set_attribute("order", 1)
tagtree.add_node(search_tag)
p = {}
self.tasktree.add_filter(CoreConfig.SEARCH_TAG, search_filter, parameters=p)
# Build the separator
sep_tag = Tag(CoreConfig.SEP_TAG, req=req)
sep_tag.set_attribute("special", "sep")
sep_tag.set_attribute("order", 3)
tagtree.add_node(sep_tag)
#### Filters
tagtree.add_filter("activetag", self.actively_used_tag)
tagtree.add_filter("usedtag", self.used_tag)
activeview = tagtree.get_viewtree(name="activetags", refresh=False)
activeview.apply_filter("activetag")
# This view doesn't seem to be used. So it's not useful to build it now
# usedview = tagtree.get_viewtree(name='usedtags',refresh=False)
# usedview.apply_filter('usedtag')
self.tagtree = tagtree
self.tagtree_loaded = True
return tagtree
def get_tags_tree(self, req):
'''This create a liblarch tree suitable for tags,
including the all_tags_tag and notag_tag.
'''
tagtree = Tree()
### building the initial tags
# Build the "all tasks tag"
alltag = Tag(CoreConfig.ALLTASKS_TAG, req=req)
alltag.set_attribute("special", "all")
alltag.set_attribute("label",
"<span weight='bold'>%s</span>" % _("All tasks"))
alltag.set_attribute("icon", "gtg-tags-all")
alltag.set_attribute("order", 0)
tagtree.add_node(alltag)
p = {}
self.tasktree.add_filter(CoreConfig.ALLTASKS_TAG,
self.alltag,
parameters=p)
# Build the "without tag tag"
notag_tag = Tag(CoreConfig.NOTAG_TAG, req=req)
notag_tag.set_attribute("special", "notag")
notag_tag.set_attribute(
"label", "<span weight='bold'>%s</span>" % _("Tasks with no tags"))
notag_tag.set_attribute("icon", "gtg-tags-none")
notag_tag.set_attribute("order", 2)
tagtree.add_node(notag_tag)
p = {}
self.tasktree.add_filter(CoreConfig.NOTAG_TAG,
self.notag,
parameters=p)
# Build the search tag
search_tag = Tag(CoreConfig.SEARCH_TAG, req=req)
search_tag.set_attribute("special", "search")
search_tag.set_attribute("label",
"<span weight='bold'>%s</span>" % _("Search"))
search_tag.set_attribute("icon", "search")
search_tag.set_attribute("order", 1)
tagtree.add_node(search_tag)
p = {}
self.tasktree.add_filter(CoreConfig.SEARCH_TAG,
search_filter,
parameters=p)
# Build the separator
sep_tag = Tag(CoreConfig.SEP_TAG, req=req)
sep_tag.set_attribute("special", "sep")
sep_tag.set_attribute("order", 3)
tagtree.add_node(sep_tag)
#### Filters
tagtree.add_filter('activetag', self.actively_used_tag)
tagtree.add_filter('usedtag', self.used_tag)
activeview = tagtree.get_viewtree(name='activetags', refresh=False)
activeview.apply_filter('activetag')
# This view doesn't seem to be used. So it's not useful to build it now
# usedview = tagtree.get_viewtree(name='usedtags',refresh=False)
# usedview.apply_filter('usedtag')
self.tagtree = tagtree
self.tagtree_loaded = True
return tagtree
class LiblarchDemo:
""" Shows a simple GUI demo of liblarch usage
with several functions for adding tasks """
def _build_tree_view(self):
self.tree = Tree()
self.tree.add_filter("even",self.even_filter)
self.tree.add_filter("odd",self.odd_filter)
self.tree.add_filter("flat",self.flat_filter,{"flat": True})
self.tree.add_filter("leaf",self.leaf_filter)
self.view_tree = self.tree.get_viewtree()
self.mod_counter = 0
self.view_tree.register_cllbck('node-added-inview',self._update_title)
self.view_tree.register_cllbck('node-modified-inview',self._modified_count)
self.view_tree.register_cllbck('node-deleted-inview',self._update_title)
desc = {}
col_name = 'label'
col = {}
col['title'] = "Title"
col['value'] = [str, self.task_label_column]
col['expandable'] = True
col['resizable'] = True
col['sorting'] = 'label'
col['order'] = 0
desc[col_name] = col
tree_view = TreeView(self.view_tree, desc)
# Polish TreeView
def on_row_activate(sender,a,b):
print("Selected nodes are: %s" %str(tree_view.get_selected_nodes()))
tree_view.set_dnd_name('liblarch-demo/liblarch_widget')
tree_view.set_multiple_selection(True)
tree_view.set_property("enable-tree-lines", True)
tree_view.connect('row-activated', on_row_activate)
return tree_view
def even_filter(self,node):
if node.get_id().isdigit():
return int(node.get_id())%2 == 0
else:
return False
def odd_filter(self,node):
return not self.even_filter(node)
def flat_filter(self,node,parameters=None):
return True
def leaf_filter(self,node):
return not node.has_child()
def _modified_count(self,nid,path):
# print "Node %s has been modified" %nid
self.mod_counter += 1
def _update_title(self,sender,nid):
count = self.view_tree.get_n_nodes()
if count == LOAD_MANY_TASKS_COUNT and self.start_time > 0:
stop_time = time() - self.start_time
print("Time to load %s tasks: %s" %(LOAD_MANY_TASKS_COUNT,stop_time))
# if count > 0:
mean = self.mod_counter * 1.0 / count
print("%s modified signals were received (%s per task)" %(self.mod_counter, mean))
self.window.set_title('Liblarch demo: %s nodes' %count)
def __init__(self):
self.window = Gtk.Window()
self.window.set_size_request(640, 480)
self.window.set_position(Gtk.WindowPosition.CENTER)
self.window.set_border_width(10)
self.window.set_title('Liblarch demo')
self.window.connect('destroy', self.finish)
self.liblarch_widget = self._build_tree_view()
scrolled_window = Gtk.ScrolledWindow()
scrolled_window.add_with_viewport(self.liblarch_widget)
self.start_time = 0
# Buttons
action_panel = Gtk.Box()
action_panel.set_spacing(5)
button_desc = [('_Add a Task', self.add_task),
('_Delete a Task', self.delete_task),
('_Print Tree', self.print_tree),
('_Print FT', self.print_ft),
('_Load many Tasks', self.many_tasks),
('_Quit', self.finish)]
for name, callback in button_desc:
button = Gtk.Button(name)
button.connect('clicked', callback)
action_panel.pack_start(button, True, True, 0)
filter_panel= Gtk.Box()
filter_panel.set_spacing(5)
for name in self.tree.list_filters():
button = Gtk.ToggleButton("%s filter"%name)
button.connect('toggled',self.apply_filter,name)
filter_panel.pack_start(button, True, True, 0)
# Use cases
usecases_vbox = Gtk.Box(orientation=Gtk.Orientation.VERTICAL)
usecase_box = None
usecase_order = 0
usecase_order_max = 3
button_desc = [('_Tree high 3', self.tree_high_3),
('Tree high 3 backwards', self.tree_high_3_backwards),
('Load from file', self.load_from_file),
('Delete DFXBCAE', self.delete_magic),
('Delete backwards', self.delete_backwards),
('Delete randomly', self.delete_random),
('Change task', self.change_task),
('_Backend use case', self.backends),
]
for name, callback in button_desc:
if usecase_order <= 0:
if usecase_box is not None:
usecases_vbox.pack_start(usecase_box, expand=False, fill=True, padding=0)
usecase_box = Gtk.Box()
usecase_box.set_spacing(5)
button = Gtk.Button(name)
button.connect('clicked', callback)
usecase_box.pack_start(button, True, True, 0)
usecase_order = (usecase_order + 1) % usecase_order_max
usecases_vbox.pack_start(usecase_box, expand=False, fill=True, padding=0)
usecase_panel = Gtk.Expander()
usecase_panel.set_label('Use cases')
usecase_panel.set_expanded(True)
usecase_panel.add(usecases_vbox)
# Show it
vbox = Gtk.Box(orientation=Gtk.Orientation.VERTICAL)
vbox.pack_start(action_panel, False, True, 10)
vbox.pack_start(filter_panel, False, True, 10)
vbox.pack_start(scrolled_window, True, True, 0)
vbox.pack_start(usecase_panel, False, True, 10)
self.window.add(vbox)
self.window.show_all()
self.should_finish = threading.Event()
def task_label_column(self, node):
newlabel = node.get_label()
return newlabel
def print_tree(self, widget=None):
print()
print("=" * 20, "Tree", "=" * 20)
self.tree.get_main_view().print_tree()
print("=" * 46)
print()
def print_ft(self, widget=None):
print()
self.view_tree.print_tree()
print()
@save_backup
def add_task(self, widget):
""" Add a new task. If a task is selected,
the new task is added as its child """
selected = self.liblarch_widget.get_selected_nodes()
t_id = random_id()
t_title = random_task_title(t_id)
task = TaskNode(t_id, t_title,self.view_tree)
if len(selected) == 1:
# Adding a subchild
parent = selected[0]
self.tree.add_node(task, parent_id = parent)
print('Added sub-task "%s" (%s) for %s' % (t_title, t_id, parent))
else:
# Adding as a new child
self.tree.add_node(task)
for parent_id in selected:
task.add_parent(parent_id)
print('Added task "%s" (%s)' % (t_title, t_id))
def apply_filter(self,widget,param):
print("applying filter: %s" %param)
if param in self.view_tree.list_applied_filters():
self.view_tree.unapply_filter(param)
else:
self.view_tree.apply_filter(param)
@save_backup
def tree_high_3(self, widget):
''' We add the leaf nodes before the root, in order to test
if it works fine even in this configuration'''
print('Adding a tree of height 3')
selected = self.liblarch_widget.get_selected_nodes()
if len(selected) == 1:
parent = selected[0]
else:
parent = None
t_id = random_id()
t_title = random_task_title(t_id)
roottask = TaskNode(t_id, t_title,self.view_tree)
local_parent = t_id
for i in range(2):
t_id = random_id()
t_title = random_task_title(t_id)
task = TaskNode(t_id, t_title,self.view_tree)
self.tree.add_node(task, parent_id = local_parent)
# Task becomes a parent for new task
local_parent = t_id
self.tree.add_node(roottask, parent_id = parent)
@save_backup
def tree_high_3_backwards(self, widget):
print('Adding a tree of height 3 backwards')
selected = self.liblarch_widget.get_selected_nodes()
if len(selected) == 1:
parent = selected[0]
else:
parent = None
tasks = []
relationships = []
for i in range(3):
t_id = random_id()
t_title = random_task_title(t_id)
task = TaskNode(t_id, t_title,self.view_tree)
tasks.append((t_id, task))
if parent is not None:
relationships.append((parent, t_id))
parent = t_id
# Relationships can come in any order, e.g. reversed
relationships = reversed(relationships)
for t_id, task in tasks:
print("Adding task to tree:", t_id, task)
self.tree.add_node(task)
print("="*50)
for parent, child in relationships:
print("New relationship: ", parent, "with", child)
parent_node = self.tree.get_node(parent)
parent_node.add_child(child)
print("="*50)
print()
@save_backup
def delete_task(self, widget, order='normal'):
print('Deleting a task')
selected = self.liblarch_widget.get_selected_nodes()
print('Order: %s' % order)
if order == 'normal':
ordered_nodes = selected
elif order == 'backward':
ordered_nodes = reversed(selected)
elif order == 'random':
ordered_nodes = selected
shuffle(ordered_nodes)
# Replace iterator for a list =>
# we want to see the order in logs and the performance is not important
ordered_nodes = [node for node in ordered_nodes]
elif order == 'magic-combination':
# testing a special case from examples/test_suite
ordered_nodes = ['D', 'F', 'X', 'B', 'C', 'A', 'E']
else:
Log.error('Unknown order, skipping...')
return
print("Tasks should be removed in this order:", ordered_nodes)
for node_id in ordered_nodes:
self.tree.del_node(node_id)
print('Removed node %s' % node_id)
self.print_tree(None)
def delete_backwards(self, widget):
""" Delete task backward """
self.delete_task(widget, order='backward')
def delete_random(self, widget):
""" Delete tasks in random order """
self.delete_task(widget, order='random')
def delete_magic(self, widget):
self.delete_task(widget, order='magic-combination')
def change_task(self, widget):
view = self.tree.get_main_view()
for node_id in self.liblarch_widget.get_selected_nodes():
node = self.tree.get_node(node_id)
node.label = "Ahoj"
node.modified()
def backends(self, widget):
print("Backends....")
Backend('1sec', self.should_finish, 1, self.tree).start()
Backend('3sec', self.should_finish, 3, self.tree).start()
Backend('5sec', self.should_finish, 5, self.tree).start()
widget.set_sensitive(False)
def many_tasks(self, widget):
self.start_time = time()
def _many_tasks():
tasks_ids = []
prefix = randint(1, 1000)* 100000
for i in range(LOAD_MANY_TASKS_COUNT):
t_id = str(prefix + i)
t_title = t_id
task = TaskNode(t_id, t_title,self.view_tree)
# There is 25 % chance to adding as a sub_task
if tasks_ids != [] and randint(0, 100) < 90:
parent = choice(tasks_ids)
self.tree.add_node(task, parent_id = parent)
else:
self.tree.add_node(task)
tasks_ids.append(t_id)
# Sleep 0.01 second to create illusion of real tasks
sleep(SLEEP_BETWEEN_TASKS)
print("end of _many_tasks thread")
t = threading.Thread(target=_many_tasks)
t.start()
def load_from_file(self, widget):
dialog = Gtk.FileChooserDialog("Open..", self.window,
Gtk.FileChooserAction.OPEN,
(Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL, Gtk.STOCK_OPEN, Gtk.ResponseType.OK))
dialog.set_default_response(Gtk.ResponseType.OK)
response = dialog.run()
if response == Gtk.ResponseType.OK:
file_name = dialog.get_filename()
else:
file_name = None
dialog.destroy()
if file_name is None:
return
log = open(file_name, 'r').read()
m = re.match('\s*Tree before operation\s+=+\s+Tree\s+=+\s+(.*?)=+', log, re.UNICODE | re.DOTALL)
if m:
treelines = m.group(1)
items = [(len(line) - len(line.lstrip()), line.strip()) for line in treelines.splitlines()]
# Filter "root" item and decrease level
items = [(level, name) for level, name in items[1:]]
# The "root" items should be at level 0, adjust level to that
min_level = min(level for level, name in items)
items = [(level-min_level, name) for level, name in items]
nodes = list(set([name for level, name in items]))
relationships = []
parent_level = { -1: None }
for level, name in items:
parent = parent_level[level - 1]
relationships.append((parent, name))
for key in list(parent_level.keys()):
if key > level:
del parent_level[key]
parent_level[level] = name
print("Nodes to add:", nodes)
print("Relationships:", "\n".join(str(r) for r in relationships))
print()
for node_id in nodes:
task = TaskNode(node_id, random_task_title(node_id),self.view_tree)
self.tree.add_node(task)
for parent, child in relationships:
parent_node = self.tree.get_node(parent)
parent_node.add_child(child)
else:
print("Not matched")
print("Log: ", log)
def finish(self, widget):
self.should_finish.set()
Gtk.main_quit()
def run(self):
Gtk.main()
class LiblarchDemo(object):
"""
Shows a simple GUI demo of liblarch usage
with several functions for adding tasks.
"""
def _build_tree_view(self):
self.tree = Tree()
self.tree.add_filter("even",self.even_filter)
self.tree.add_filter("odd",self.odd_filter)
self.tree.add_filter("flat",self.flat_filter,{"flat": True})
self.tree.add_filter("leaf",self.leaf_filter)
self.view_tree = self.tree.get_viewtree()
self.mod_counter = 0
self.view_tree.register_cllbck('node-added-inview',self._update_title)
self.view_tree.register_cllbck('node-modified-inview',self._modified_count)
self.view_tree.register_cllbck('node-deleted-inview',self._update_title)
desc = {}
col_name = 'label'
col = {}
col['title'] = "Title"
col['value'] = [str, self.task_label_column]
col['expandable'] = True
col['resizable'] = True
col['sorting'] = 'label'
col['order'] = 0
desc[col_name] = col
tree_view = TreeView(self.view_tree, desc)
# Polish TreeView
def on_row_activate(sender,a,b):
print(
"Selected nodes are: {0!s}".format(
tree_view.get_selected_nodes()
)
)
tree_view.set_dnd_name('liblarch-demo/liblarch_widget')
tree_view.set_multiple_selection(True)
tree_view.set_property("enable-tree-lines", True)
tree_view.connect('row-activated', on_row_activate)
return tree_view
def even_filter(self,node):
if node.get_id().isdigit():
return int(node.get_id())%2 == 0
else:
return False
def odd_filter(self, node):
return not self.even_filter(node)
def flat_filter(self, node, parameters=None):
return True
def leaf_filter(self, node):
return not node.has_child()
def _modified_count(self, nid, path):
# print("Node {0} has been modified".format(nid))
self.mod_counter += 1
def _update_title(self,sender,nid):
count = self.view_tree.get_n_nodes()
if count == LOAD_MANY_TASKS_COUNT and self.start_time > 0:
stop_time = time() - self.start_time
print(
"Time to load {0} tasks: {1}".format(
LOAD_MANY_TASKS_COUNT,stop_time
)
)
# if count > 0:
mean = self.mod_counter * 1.0 / count
print(
"{0} modified signals were received ({1} per task)".format(
self.mod_counter, mean
)
)
self.window.set_title('Liblarch demo: %s nodes' %count)
def __init__(self):
self.window = Gtk.Window()
self.window.set_size_request(640, 480)
self.window.set_position(Gtk.WindowPosition.CENTER)
self.window.set_border_width(10)
self.window.set_title('Liblarch demo')
self.window.connect('destroy', self.finish)
self.liblarch_widget = self._build_tree_view()
scrolled_window = Gtk.ScrolledWindow()
scrolled_window.add_with_viewport(self.liblarch_widget)
self.start_time = 0
# Buttons
action_panel = Gtk.Box(orientation=Gtk.Orientation.HORIZONTAL)
action_panel.set_spacing(5)
button_desc = [
('_Add a Task', self.add_task),
('_Delete a Task', self.delete_task),
('_Print Tree', self.print_tree),
('_Print FT', self.print_ft),
('_Load many Tasks', self.many_tasks),
('_Quit', self.finish)
]
for name, callback in button_desc:
button = Gtk.Button(name, use_underline=True)
button.connect('clicked', callback)
action_panel.pack_start(button, expand=True, fill=True, padding=0)
filter_panel= Gtk.Box(orientation=Gtk.Orientation.HORIZONTAL)
filter_panel.set_spacing(5)
for name in self.tree.list_filters():
button = Gtk.ToggleButton("%s filter"%name)
button.connect('toggled',self.apply_filter,name)
filter_panel.pack_start(button, expand=True, fill=True, padding=0)
# Use cases
usecases_vbox = Gtk.Box(orientation=Gtk.Orientation.VERTICAL)
usecase_box = None
usecase_order = 0
usecase_order_max = 3
button_desc = [
('_Tree high 3', self.tree_high_3),
('Tree high 3 backwards', self.tree_high_3_backwards),
('Load from file', self.load_from_file),
('Delete DFXBCAE', self.delete_magic),
('Delete backwards', self.delete_backwards),
('Delete randomly', self.delete_random),
('Change task', self.change_task),
('_Backend use case', self.backends),
]
for name, callback in button_desc:
if usecase_order <= 0:
if usecase_box is not None:
usecases_vbox.pack_start(
usecase_box,
expand=False,
fill=True,
padding=0
)
usecase_box = Gtk.Box(orientation=Gtk.Orientation.HORIZONTAL)
usecase_box.set_spacing(5)
button = Gtk.Button(name, use_underline=True)
button.connect('clicked', callback)
usecase_box.pack_start(button, expand=True, fill=True, padding=0)
usecase_order = (usecase_order + 1) % usecase_order_max
usecases_vbox.pack_start(
usecase_box,
expand=False,
fill=True,
padding=0
)
# usecase_panel = Gtk.Expander('Use cases')
usecase_panel = Gtk.Expander()
usecase_panel.set_expanded(True)
usecase_panel.add(usecases_vbox)
# Show it
vbox = Gtk.Box(orientation=Gtk.Orientation.VERTICAL)
vbox.pack_start(action_panel, False, True, 10)
vbox.pack_start(filter_panel, False, True, 10)
vbox.pack_start(scrolled_window, expand=True, fill=True, padding=0)
vbox.pack_start(usecase_panel, False, True, 10)
self.window.add(vbox)
self.window.show_all()
self.should_finish = threading.Event()
def task_label_column(self, node):
newlabel = node.get_label()
return newlabel
def print_tree(self, widget=None):
print
print("{0} Tree {0}".format("=" * 20))
self.tree.get_main_view().print_tree()
print("=" * 46)
print
def print_ft(self, widget=None):
print
self.view_tree.print_tree()
print
@save_backup
def add_task(self, widget):
"""
Add a new task. If a task is selected,
the new task is added as its child
"""
selected = self.liblarch_widget.get_selected_nodes()
t_id = random_id()
t_title = random_task_title(t_id)
task = TaskNode(t_id, t_title,self.view_tree)
if len(selected) == 1:
# Adding a subchild
parent = selected[0]
self.tree.add_node(task, parent_id = parent)
print(
'Added sub-task "{0}" ({1}) for {2}'.format(
t_title, t_id, parent
)
)
else:
# Adding as a new child
self.tree.add_node(task)
for parent_id in selected:
task.add_parent(parent_id)
print('Added task "{0}" ({1})'.format(t_title, t_id))
def apply_filter(self,widget,param):
print("applying filter: {0}".format(param))
if param in self.view_tree.list_applied_filters():
self.view_tree.unapply_filter(param)
else:
self.view_tree.apply_filter(param)
@save_backup
def tree_high_3(self, widget):
"""
We add the leaf nodes before the root, in order to test
if it works fine even in this configuration
"""
print('Adding a tree of height 3')
selected = self.liblarch_widget.get_selected_nodes()
if len(selected) == 1:
parent = selected[0]
else:
parent = None
t_id = random_id()
t_title = random_task_title(t_id)
roottask = TaskNode(t_id, t_title,self.view_tree)
local_parent = t_id
for i in range(2):
t_id = random_id()
t_title = random_task_title(t_id)
task = TaskNode(t_id, t_title,self.view_tree)
self.tree.add_node(task, parent_id = local_parent)
# Task becomes a parent for new task
local_parent = t_id
self.tree.add_node(roottask, parent_id = parent)
@save_backup
def tree_high_3_backwards(self, widget):
print('Adding a tree of height 3 backwards')
selected = self.liblarch_widget.get_selected_nodes()
if len(selected) == 1:
parent = selected[0]
else:
parent = None
tasks = []
relationships = []
for i in range(3):
t_id = random_id()
t_title = random_task_title(t_id)
task = TaskNode(t_id, t_title,self.view_tree)
tasks.append((t_id, task))
if parent is not None:
relationships.append((parent, t_id))
parent = t_id
# Relationships can come in any order, e.g. reversed
relationships = reversed(relationships)
for t_id, task in tasks:
print("Adding task to tree: {0} {1}".format(t_id, task))
self.tree.add_node(task)
print("="*50)
for parent, child in relationships:
print("New relationship: {0} with {1}".format(parent, child))
parent_node = self.tree.get_node(parent)
parent_node.add_child(child)
print("="*50)
print
@save_backup
def delete_task(self, widget, order="normal"):
print("Deleting a task")
selected = self.liblarch_widget.get_selected_nodes()
print("Order: {0}".format(order))
if order == "normal":
ordered_nodes = selected
elif order == "backward":
ordered_nodes = reversed(selected)
elif order == "random":
ordered_nodes = selected
shuffle(ordered_nodes)
# Replace iterator for a list =>
# we want to see the order in logs and the performance is not important
ordered_nodes = [node for node in ordered_nodes]
elif order == 'magic-combination':
# testing a special case from examples/test_suite
ordered_nodes = ['D', 'F', 'X', 'B', 'C', 'A', 'E']
else:
Log.error('Unknown order, skipping...')
return
print(
"Tasks should be removed in this order: {0}".format(ordered_nodes)
)
for node_id in ordered_nodes:
self.tree.del_node(node_id)
print("Removed node {0}".format(node_id))
self.print_tree(None)
def delete_backwards(self, widget):
"""
Delete task backward
"""
self.delete_task(widget, order='backward')
def delete_random(self, widget):
"""
Delete tasks in random order
"""
self.delete_task(widget, order='random')
def delete_magic(self, widget):
self.delete_task(widget, order='magic-combination')
def change_task(self, widget):
view = self.tree.get_main_view()
for node_id in self.liblarch_widget.get_selected_nodes():
node = self.tree.get_node(node_id)
node.label = "Ahoj"
node.modified()
def backends(self, widget):
print("Backends....")
Backend('1sec', self.should_finish, 1, self.tree).start()
Backend('3sec', self.should_finish, 3, self.tree).start()
Backend('5sec', self.should_finish, 5, self.tree).start()
widget.set_sensitive(False)
def many_tasks(self, widget):
self.start_time = time()
def _many_tasks():
tasks_ids = []
prefix = randint(1, 1000)* 100000
for i in range(LOAD_MANY_TASKS_COUNT):
t_id = str(prefix + i)
t_title = t_id
task = TaskNode(t_id, t_title,self.view_tree)
# There is 25 % chance to adding as a sub_task
if tasks_ids != [] and randint(0, 100) < 90:
parent = choice(tasks_ids)
self.tree.add_node(task, parent_id = parent)
else:
self.tree.add_node(task)
tasks_ids.append(t_id)
# Sleep 0.01 second to create illusion of real tasks
sleep(SLEEP_BETWEEN_TASKS)
print("end of _many_tasks thread")
t = threading.Thread(target=_many_tasks)
t.start()
def load_from_file(self, widget):
dialog = Gtk.FileChooserDialog("Open..", self.window,
Gtk.FileChooserAction.OPEN,
(Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL, Gtk.STOCK_OPEN, Gtk.ResponseType.OK))
dialog.set_default_response(Gtk.ResponseType.OK)
response = dialog.run()
if response == Gtk.ResponseType.OK:
file_name = dialog.get_filename()
else:
file_name = None
dialog.destroy()
if file_name is None:
return
log = open(file_name, 'r').read()
m = re.match(
'\s*Tree before operation\s+=+\s+Tree\s+=+\s+(.*?)=+',
log, re.UNICODE | re.DOTALL
)
if m:
treelines = m.group(1)
items = [
(len(line) - len(line.lstrip()), line.strip())
for line in treelines.splitlines()
]
# Filter "root" item and decrease level
items = [(level, name) for level, name in items[1:]]
# The "root" items should be at level 0, adjust level to that
min_level = min(level for level, name in items)
items = [(level-min_level, name) for level, name in items]
nodes = list(set([name for level, name in items]))
relationships = []
parent_level = { -1: None }
for level, name in items:
parent = parent_level[level - 1]
relationships.append((parent, name))
for key in list(parent_level.keys()):
if key > level:
del parent_level[key]
parent_level[level] = name
print("Nodes to add: {0}".format(nodes))
print(
"Relationships: {0}".format(
"\n".join(str(r) for r in relationships)
)
)
print
for node_id in nodes:
task = TaskNode(
node_id,
random_task_title(node_id),
self.view_tree
)
self.tree.add_node(task)
for parent, child in relationships:
parent_node = self.tree.get_node(parent)
parent_node.add_child(child)
else:
print("Not matched")
print("Log: {0}".format(log))
def finish(self, widget):
self.should_finish.set()
Gtk.main_quit()
def run(self):
Gtk.main()
class ContactListWindow(object):
def __init__(self):
# First we do all the GTK stuff
# This is not interesting from a liblarch perspective
self.window = Gtk.Window()
self.window.set_size_request(300, 600)
self.window.set_border_width(12)
self.window.set_title('Liblarch contact-list')
self.window.connect('destroy', self.quit)
vbox = Gtk.Box(orientation=Gtk.Orientation.VERTICAL)
vbox.set_spacing(6)
# A check button to show/hide offline contacts
show_offline = Gtk.CheckButton("Show offline contacts")
show_offline.connect("toggled", self.show_offline_contacts)
vbox.pack_start(show_offline, expand=False, fill=True, padding=0)
# The search through contacts
search = Gtk.Entry()
search.set_icon_from_icon_name(0, "search")
search.get_buffer().connect("inserted-text", self.search)
search.get_buffer().connect("deleted-text", self.search)
vbox.pack_start(search, expand=False, fill=True, padding=0)
# The contact list, build with liblarch
scrolled_window = Gtk.ScrolledWindow()
scrolled_window.add_with_viewport(self.make_contact_list())
scrolled_window.set_policy(Gtk.PolicyType.NEVER,
Gtk.PolicyType.AUTOMATIC)
vbox.pack_start(scrolled_window, True, True, 0)
# Status
box = Gtk.ComboBoxText()
box.append_text("Online")
box.append_text("Busy")
box.append_text("Offline")
box.set_active(0)
box.connect('changed', self.status_changed)
vbox.pack_start(box, expand=False, fill=True, padding=0)
self.window.add(vbox)
self.window.show_all()
# This is the interesting part on how we use liblarch
def make_contact_list(self):
# LIBLARCH TREE CONSTRUCTION
# First thing, we create a liblarch tree
self.tree = Tree()
# Now, we add each contact *and* each team as nodes of that tree.
# The team will be the parents of the contact nodes.
for contact in CONTACTS:
# We create the node and use the XMPP address as the node_id
node = NodeContact(contact['xmpp'])
# We add the status and the nickname
node.set_status(contact['status'])
node.set_nick(contact['name'])
# The contact node is added to the tree
self.tree.add_node(node)
# Now, we create the team if it was not done before
for team_name in contact['teams']:
if not self.tree.has_node(team_name):
team_node = NodeTeam(team_name)
self.tree.add_node(team_node)
# now we put the contact under the team
node.add_parent(team_name)
# we could also have done
# team_node.add_child(contact[0])
# LIBLARCH VIEW and FILTER
# Ok, now we have our liblarch tree. What we need is a view.
self.view = self.tree.get_viewtree()
# We also create a filter that will allow us to hide offline people
self.tree.add_filter("online", self.is_node_online)
self.offline = False
self.tree.add_filter("search", self.search_filter)
# And we apply this filter by default
self.view.apply_filter("online")
# LIBLARCH GTK.TreeView
# And, now, we build our Gtk.TreeView
# We will build each column of our TreeView
columns = {}
# The first column contain the XMPP address but will be hidden
# But it is still useful for searching
col = {}
col['value'] = [str, lambda node: node.get_id()]
col['visible'] = False
col['order'] = 0
columns['XMPP'] = col
# The second column is the status
col = {}
render_tags = CellRendererTags()
render_tags.set_property('xalign', 0.0)
col['renderer'] = ['status', render_tags]
col['value'] = [GObject.TYPE_PYOBJECT, lambda node: node.get_status()]
col['expandable'] = False
col['resizable'] = False
col['order'] = 1
columns['status'] = col
# the third column is the nickname
col = {}
col['value'] = [str, lambda node: node.get_label()]
col['visible'] = True
col['order'] = 2
columns['nick'] = col
return TreeView(self.view, columns)
# This is the "online" filter.
# It returns the contacts that are busy or online
# and teams that have at least one contact displayed
def is_node_online(self, node):
if node.get_type() == "contact":
# Always show myself
if node.get_id() == '*****@*****.**':
return True
status = node.get_status()
if status == "online" or status == "busy":
return True
else:
return False
# For the team, we test each contact of that team
elif node.get_type() == "team":
tree = node.get_tree()
for child_id in node.get_children():
child = tree.get_node(child_id)
status = child.get_status()
if status == "online" or status == "busy":
return True
return False
return True
def show_offline_contacts(self, widget):
# We should remove the filter to show offline contacts
if widget.get_active():
self.view.unapply_filter('online')
self.offline = True
# else we apply the "online" filter, showing only online/busy people
else:
self.view.apply_filter('online')
self.offline = False
def status_changed(self, widget):
new = widget.get_active_text()
node = self.tree.get_node('*****@*****.**')
if new == 'Busy':
node.set_status('busy')
elif new == 'Offline':
node.set_status('offline')
else:
node.set_status('online')
def search(self, widget, position, char, nchar=None):
search_string = widget.get_text()
if len(search_string) > 0:
# First, we remove the old filter
# Note the "refresh=False", because we know we will apply another
# filter just afterwards
# We also remove the online filter to search through offline
# contacts
if not self.offline:
self.view.unapply_filter('online', refresh=False)
self.view.unapply_filter('search', refresh=False)
self.view.apply_filter('search',
parameters={'search': search_string})
else:
if not self.offline:
self.view.apply_filter('online')
self.view.unapply_filter('search')
def search_filter(self, node, parameters=None):
string = parameters['search']
if node.get_type() == "contact":
if string in node.get_id() or string in node.get_nick():
return True
else:
return False
else:
return False
def quit(self, widget):
Gtk.main_quit()
class contact_list_window():
def __init__(self):
# First we do all the GTK stuff
# This is not interesting from a liblarch perspective
self.window = gtk.Window()
self.window.set_size_request(300, 600)
self.window.set_border_width(12)
self.window.set_title('Liblarch contact-list')
self.window.connect('destroy', self.quit)
vbox = gtk.VBox()
vbox.set_spacing(6)
#A check button to show/hide offline contacts
show_offline = gtk.CheckButton("Show offline contacts")
show_offline.connect("toggled",self.show_offline_contacts)
vbox.pack_start(show_offline, False, True)
#The search through contacts
search = gtk.Entry()
search.set_icon_from_icon_name(0, "search")
search.get_buffer().connect("inserted-text",self.search)
search.get_buffer().connect("deleted-text",self.search)
vbox.pack_start(search, False, True)
#The contact list, build with liblarch
scrolled_window = gtk.ScrolledWindow()
scrolled_window.add_with_viewport(self.make_contact_list())
scrolled_window.set_policy(gtk.POLICY_NEVER,gtk.POLICY_AUTOMATIC)
vbox.pack_start(scrolled_window)
#Status
box = gtk.combo_box_new_text()
box.append_text("Online")
box.append_text("Busy")
box.append_text("Offline")
box.set_active(0)
box.connect('changed',self.status_changed)
vbox.pack_start(box, False, True)
self.window.add(vbox)
self.window.show_all()
#This is the interesting part on how we use liblarch
def make_contact_list(self):
##### LIBLARCH TREE CONSTRUCTION
#First thing, we create a liblarch tree
self.tree = Tree()
#Now, we add each contact *and* each team as nodes of that tree.
#The team will be the parents of the contact nodes.
for contact in CONTACTS:
#We create the node and use the XMPP address as the node_id
node = NodeContact(contact[0])
#We add the status and the nickname
node.set_status(contact[1])
node.set_nick(contact[2])
#The contact node is added to the tree
self.tree.add_node(node)
#Now, we create the team if it was not done before
for team_name in contact[3]:
if not self.tree.has_node(team_name):
team_node = NodeTeam(team_name)
self.tree.add_node(team_node)
#now we put the contact under the team
node.add_parent(team_name)
#we could also have done
#team_node.add_child(contact[0])
###### LIBLARCH VIEW and FILTER
#Ok, now we have our liblarch tree. What we need is a view.
self.view = self.tree.get_viewtree()
#We also create a filter that will allow us to hide offline people
self.tree.add_filter("online",self.is_node_online)
self.offline = False
self.tree.add_filter("search",self.search_filter)
#And we apply this filter by default
self.view.apply_filter("online")
###### LIBLARCH GTK.TreeView
#And, now, we build our Gtk.TreeView
#We will build each column of our TreeView
columns = {}
#The first column contain the XMPP address but will be hidden
#But it is still useful for searching
col = {}
col['value'] = [str, lambda node: node.get_id()]
col['visible'] = False
col['order'] = 0
columns['XMPP'] = col
#The second column is the status
col = {}
render_tags = CellRendererTags()
render_tags.set_property('xalign', 0.0)
col['renderer'] = ['status',render_tags]
col['value'] = [gobject.TYPE_PYOBJECT,lambda node: node.get_status()]
col['expandable'] = False
col['resizable'] = False
col['order'] = 1
columns['status'] = col
#the third column is the nickname
col = {}
col['value'] = [str, lambda node: node.get_label()]
col['visible'] = True
col['order'] = 2
columns['nick'] = col
return TreeView(self.view,columns)
#This is the "online" filter.
#It returns the contacts that are busy or online
#and teams that have at least one contact displayed
def is_node_online(self,node):
if node.get_type() == "contact":
#Always show myself
if node.get_id() == '*****@*****.**':
return True
status = node.get_status()
if status == "online" or status == "busy":
return True
else:
return False
#For the team, we test each contact of that team
elif node.get_type() == "team":
tree = node.get_tree()
for child_id in node.get_children():
child = tree.get_node(child_id)
status = child.get_status()
if status == "online" or status == "busy":
return True
return False
return True
def show_offline_contacts(self,widget):
#We should remove the filter to show offline contacts
if widget.get_active():
self.view.unapply_filter('online')
self.offline = True
#else we apply the "online" filter, showing only online/busy people
else:
self.view.apply_filter('online')
self.offline = False
def status_changed(self,widget):
new = widget.get_active_text()
node = self.tree.get_node('*****@*****.**')
if new == 'Busy': node.set_status('busy')
elif new == 'Offline': node.set_status('offline')
else: node.set_status('online')
def search(self,widget,position,char,nchar=None):
search_string = widget.get_text()
if len(search_string) > 0:
#First, we remove the old filter
#note the "refresh=False", because we know we will apply
#another filter just afterwards
#We also remove the online filter to search through offline contacts
if not self.offline:
self.view.unapply_filter('online',refresh=False)
self.view.unapply_filter('search',refresh=False)
self.view.apply_filter('search',parameters={'search':search_string})
else:
if not self.offline:
self.view.apply_filter('online')
self.view.unapply_filter('search')
def search_filter(self,node,parameters=None):
string = parameters['search']
if node.get_type() == "contact":
if string in node.get_id() or string in node.get_nick():
return True
else:
return False
else:
return False
def quit(self, widget):
gtk.main_quit()