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'''
Notes
=====
Simple application for reading/writing notes.
'''
__version__ = '1.0'
import json
from os.path import join, exists
from kivy.app import App
from kivy.uix.screenmanager import ScreenManager, Screen, SlideTransition
from kivy.properties import ListProperty, StringProperty, \
NumericProperty, BooleanProperty, AliasProperty
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.floatlayout import FloatLayout
from kivy.clock import Clock
class MutableTextInput(FloatLayout):
text = StringProperty()
multiline = BooleanProperty(True)
def __init__(self, **kwargs):
super(MutableTextInput, self).__init__(**kwargs)
Clock.schedule_once(self.prepare, 0)
def prepare(self, *args):
self.w_textinput = self.ids.w_textinput.__self__
self.w_label = self.ids.w_label.__self__
self.view()
def on_touch_down(self, touch):
if self.collide_point(*touch.pos) and touch.is_double_tap:
self.edit()
return super(MutableTextInput, self).on_touch_down(touch)
def edit(self):
self.clear_widgets()
self.add_widget(self.w_textinput)
self.w_textinput.focus = True
def view(self):
self.clear_widgets()
if not self.text:
self.w_label.text = "Double tap/click to edit"
self.add_widget(self.w_label)
def check_focus_and_view(self, textinput):
if not textinput.focus:
self.text = textinput.text
self.view()
class NoteView(Screen):
note_index = NumericProperty()
note_title = StringProperty()
note_content = StringProperty()
class NoteListItem(BoxLayout):
note_content = StringProperty()
note_title = StringProperty()
note_index = NumericProperty()
class Notes(Screen):
data = ListProperty()
def _get_data_for_widgets(self):
return [{
'note_index': index,
'note_content': item['content'],
'note_title': item['title']}
for index, item in enumerate(self.data)]
data_for_widgets = AliasProperty(_get_data_for_widgets, bind=['data'])
class NoteApp(App):
def build(self):
self.notes = Notes(name='notes')
self.load_notes()
self.transition = SlideTransition(duration=.35)
root = ScreenManager(transition=self.transition)
root.add_widget(self.notes)
return root
def load_notes(self):
if not exists(self.notes_fn):
return
with open(self.notes_fn) as fd:
data = json.load(fd)
self.notes.data = data
def save_notes(self):
with open(self.notes_fn, 'w') as fd:
json.dump(self.notes.data, fd)
def del_note(self, note_index):
del self.notes.data[note_index]
self.save_notes()
self.refresh_notes()
self.go_notes()
def edit_note(self, note_index):
note = self.notes.data[note_index]
name = 'note{}'.format(note_index)
if self.root.has_screen(name):
self.root.remove_widget(self.root.get_screen(name))
view = NoteView(
name=name,
note_index=note_index,
note_title=note.get('title'),
note_content=note.get('content'))
self.root.add_widget(view)
self.transition.direction = 'left'
self.root.current = view.name
def add_note(self):
self.notes.data.append({'title': 'New note', 'content': ''})
note_index = len(self.notes.data) - 1
self.edit_note(note_index)
def set_note_content(self, note_index, note_content):
self.notes.data[note_index]['content'] = note_content
data = self.notes.data
self.notes.data = []
self.notes.data = data
self.save_notes()
self.refresh_notes()
def set_note_title(self, note_index, note_title):
self.notes.data[note_index]['title'] = note_title
self.save_notes()
self.refresh_notes()
def refresh_notes(self):
data = self.notes.data
self.notes.data = []
self.notes.data = data
def go_notes(self):
self.transition.direction = 'right'
self.root.current = 'notes'
@property
def notes_fn(self):
return join(self.user_data_dir, 'notes.json')
if __name__ == '__main__':
NoteApp().run()
|
