class agacGorunumu(App):
def build(self):
duzen=BoxLayout(orientation='vertical')
self.agac_koku = TreeView(hide_root=True, size_hint_y=0.8)
kuruyemisler=[('Sert Kabuklular',('Ceviz', 'Fındık', 'Badem')),
('Meyve Kuruları',('Dut', 'Vişne', 'Kayısı', 'İncir'))]
for ky in kuruyemisler:
eb=self.agac_koku.add_node(TreeViewLabel(text=ky[0]))
for k in ky[1]:
self.agac_koku.add_node(TreeViewLabel(text=k),eb)
duzen.add_widget(self.agac_koku)
dgm=Button(text='Elemanları Yaz', size_hint_y=0.2)
dgm.bind(on_press=self.elemanlari_yaz)
duzen.add_widget(dgm)
return duzen
def elemanlari_yaz(self, *args):
for eb in self.agac_koku.iterate_all_nodes():
print eb.level, eb.text
if self.agac_koku.selected_node:
print "Seçili Eleman", self.agac_koku.selected_node.text
print self.agac_koku.get_node_at_pos((1,1))
class TreeWidget(BoxLayout):
def __init__(self, **kwargs):
super(TreeWidget, self).__init__(**kwargs)
self.selected = None
self.items = []
# self.on_touch_down=self.touch
def populate_tree_view(self, tree_view, parent, node):
if parent is None:
tree_node = tree_view.add_node(
TreeViewLabel(
text=node['node_id'],
on_touch_up=self.touch1,
is_open=True,
font_size=25,
)) # ,bcolor=random.choice(self.colors)
tree_node.item = node["item"]
self.items.append(tree_node)
else:
tl = TreeViewLabel(
text=node['node_id'],
is_open=False,
font_size=25,
) # ,bcolor=random.choice(self.colors)
tl.item = node["item"]
tree_node = tree_view.add_node(tl, parent)
for child_node in node['children']:
self.populate_tree_view(tree_view, tree_node, child_node)
def define(self, tree1, callback, colors):
self.callback = callback
self.colors = colors
self.tv = TreeView(root_options=dict(text='Playlists'),
hide_root=True,
on_touch_down=self.touch2,
indent_level=10)
self.tv.size_hint = 1, None
self.tv.bind(minimum_height=self.tv.setter('height'))
self.populate_tree_view(self.tv, None, tree1)
root = ScrollView(pos=(0, 0))
root.add_widget(self.tv)
self.add_widget(root)
def touch1(self, instance, touch):
return False
def touch2(self, instance, touch):
"""
Handle a touch event on a child TreeViewLabel
:param args:
:param kwargs:
:return:
"""
node = self.tv.get_node_at_pos(touch.pos)
if not node:
return
try:
self.callback(node.item["uri"], node.text)
return True
except:
pass
self.tv.toggle_node(node)
node.dispatch('on_touch_down', touch)
return True
