tuhi/tuhigui/drawingperspective.py

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#!/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 gi.repository import GObject, Gtk
from .drawing import Drawing
from .svg import JsonSvg
import json
import gi
gi.require_version("Gtk", "3.0")
@Gtk.Template(resource_path="/org/freedesktop/TuhiGui/ui/DrawingPerspective.ui")
class DrawingPerspective(Gtk.Stack):
__gtype_name__ = "DrawingPerspective"
label_devicename = Gtk.Template.Child()
image_battery = Gtk.Template.Child()
flowbox_drawings = Gtk.Template.Child()
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.known_drawings = []
def _update_drawings(self, device, pspec):
for ts in self.device.drawings_available:
if ts in self.known_drawings:
continue
self.known_drawings.append(ts)
js = json.loads(self.device.json(ts))
svg = JsonSvg(js)
drawing = Drawing(svg)
self.flowbox_drawings.add(drawing)
@GObject.Property
def device(self):
return self._device
@device.setter
def device(self, device):
self._device = device
self.label_devicename.set_text(f'{device.name} - {device.address}')
device.connect('notify::connected', self._on_connected)
device.connect('notify::listening', self._on_listening_stopped)
self.device.connect('notify::drawings-available',
self._update_drawings)
# icon name is something like battery-020-charging, or battery-040
# in 20-step increments
if device.battery_state == 1:
state = '-charging'
else:
state = ''
percent = f'{int(device.battery_percent/20) * 20:03d}'
batt_icon_name = f'battery-{percent}{state}'
_, isize = self.image_battery.get_icon_name()
self.image_battery.set_from_icon_name(batt_icon_name, isize)
self._update_drawings(self.device, None)
# We always want to sync on startup
device.start_listening()
@GObject.Property
def name(self):
return "drawing_perspective"
def _on_connected(self, device, pspec):
pass
def _on_listening_stopped(self, device, pspec):
# We never want to stop listening
device.start_listening()