#!/usr/bin/env python3 # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # from gettext import gettext as _ from gi.repository import GObject, Gtk from .drawing import Drawing from .config import Config import time import gi import logging gi.require_version("Gtk", "3.0") logging.basicConfig(level=logging.DEBUG) logger = logging.getLogger('tuhi.gui.drawingperspective') def relative_time(seconds): MIN = 60 H = 60 * MIN DAY = 24 * H WEEK = 7 * DAY if seconds < 30: return _('just now') if seconds < 5 * MIN: return _('a few minutes ago') if seconds < H: minutes = int(seconds / MIN / 10) * 10 return _(f'{minutes} minutes ago') if seconds < DAY: hours = int(seconds / H) return _(f'{hours} hours ago') if seconds < 4 * WEEK: days = int(seconds / DAY) return _(f'{days} days ago') if seconds > 10 * 365 * DAY: return _('not yet') return _('a long time ago') @Gtk.Template(resource_path="/org/freedesktop/Tuhi/ui/Flowbox.ui") class Flowbox(Gtk.Box): __gtype_name__ = "Flowbox" label_date = Gtk.Template.Child() flowbox_drawings = Gtk.Template.Child() def __init__(self, timestruct, *args, **kwargs): super().__init__(*args, **kwargs) self.time = timestruct self.label_date.set_text(time.strftime('%B %Y', self.time)) def insert(self, drawing): # We don't know which order we get drawings from the device, so # let's do a sorted insert here index = 0 child = self.flowbox_drawings.get_child_at_index(index) while child is not None: if child.get_child().timestamp < drawing.timestamp: break index += 1 child = self.flowbox_drawings.get_child_at_index(index) self.flowbox_drawings.insert(drawing, index) def delete(self, drawing): def delete_matching_child(child, drawing): if child.get_child() == drawing: self.flowbox_drawings.remove(child) self.flowbox_drawings.foreach(delete_matching_child, drawing) @GObject.property def is_empty(self): return not self.flowbox_drawings.get_children() @Gtk.Template(resource_path="/org/freedesktop/Tuhi/ui/DrawingPerspective.ui") class DrawingPerspective(Gtk.Stack): __gtype_name__ = "DrawingPerspective" viewport = Gtk.Template.Child() overlay_undo = Gtk.Template.Child() notification_delete_undo = Gtk.Template.Child() notification_delete_close = Gtk.Template.Child() box_all_drawings = Gtk.Template.Child() def __init__(self, *args, **kwargs): super().__init__(*args, **kwargs) self.known_drawings = {} # type {timestamp: Drawing()} self.flowboxes = {} def _cache_drawings(self, device, pspec): # The config backend filters duplicates anyway, so don't care here for ts in self.device.drawings_available: json_string = self.device.json(ts) Config.instance().add_drawing(ts, json_string) def _update_drawings(self, config, pspec): def _hash(drawing): return time.strftime('Y%m', time.gmtime(drawing.timestamp)) for js in config.drawings: ts = js['timestamp'] if ts in self.known_drawings: continue drawing = Drawing(js) self.known_drawings[ts] = drawing # Now pick the right monthly flowbox to insert into key = _hash(drawing) try: fb = self.flowboxes[key] except KeyError: fb = Flowbox(time.gmtime(drawing.timestamp)) self.flowboxes[key] = fb self.box_all_drawings.add(fb) finally: fb.insert(drawing) # Remove deleted drawings deleted = [ts for ts in self.known_drawings if ts not in [ js['timestamp'] for js in config.drawings]] for ts in deleted: drawing = self.known_drawings[ts] fb = self.flowboxes[_hash(drawing)] fb.delete(drawing) if fb.is_empty: del self.flowboxes[_hash(drawing)] self.box_all_drawings.remove(fb) del self.known_drawings[ts] self.notification_delete_undo.deleted_drawing = drawing.timestamp self.overlay_undo.set_reveal_child(True) @GObject.Property def device(self): return self._device @device.setter def device(self, device): self._device = device device.connect('notify::connected', self._on_connected) device.connect('notify::listening', self._on_listening_stopped) # This is a bit convoluted. We need to cache all drawings # because Tuhi doesn't have guaranteed storage. So any json that # comes in from Tuhi, we pass to our config backend to save # somewhere. # The config backend adds the json file and emits a notify for the # json itself (once cached) that we then actually use for SVG # generation. device.connect('notify::drawings-available', self._cache_drawings) Config.instance().connect('notify::drawings', self._update_drawings) self._update_drawings(Config.instance(), None) # We always want to sync on startup logger.debug(f'{device.name} - starting to listen') device.start_listening() @GObject.Property def name(self): return "drawing_perspective" def _on_connected(self, device, pspec): # Turns out we don't really care about whether the device is # connected or not, it has little effect on how we work here pass def _on_listening_stopped(self, device, pspec): if not device.listening: logger.debug(f'{device.name} - listening stopped, restarting') # We never want to stop listening device.start_listening() @Gtk.Template.Callback('_on_undo_close_clicked') def _on_undo_close_clicked(self, button): self.overlay_undo.set_reveal_child(False) @Gtk.Template.Callback('_on_undo_clicked') def _on_undo_clicked(self, button): Config.instance().undelete_drawing(button.deleted_drawing) self.overlay_undo.set_reveal_child(False)