Python-With-Gtk-Template/src/core/window.py

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# Python imports
import time
import signal
# Lib imports
import gi
import cairo
gi.require_version('Gtk', '3.0')
gi.require_version('Gdk', '3.0')
from gi.repository import Gtk
from gi.repository import Gdk
from gi.repository import GLib
# Application imports
from core.controller import Controller
class ControllerStartExceptiom(Exception):
...
class Window(Gtk.ApplicationWindow):
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""" docstring for Window. """
def __init__(self, args, unknownargs):
super(Window, self).__init__()
self._controller = None
self._set_window_data()
self._setup_styling()
self._setup_signals()
self._subscribe_to_events()
settings.set_main_window(self)
self._load_widgets(args, unknownargs)
self.show()
# NOTE: Need to set size after show b/c get_allocation methods are initially incorrect if done beforehand...
self._set_size_constraints()
def _setup_styling(self):
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self.set_default_size(settings.get_main_window_width(),
settings.get_main_window_height())
self.set_title(f"{app_name}")
self.set_icon_from_file( settings.get_window_icon() )
self.set_gravity(5) # 5 = CENTER
self.set_position(1) # 1 = CENTER, 4 = CENTER_ALWAYS
def _setup_signals(self):
self.connect("delete-event", self._tear_down)
GLib.unix_signal_add(GLib.PRIORITY_DEFAULT, signal.SIGINT, self._tear_down)
def _subscribe_to_events(self):
event_system.subscribe("tear_down", self._tear_down)
def _load_widgets(self, args, unknownargs):
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if settings.is_debug():
self.set_interactive_debugging(True)
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self._controller = Controller(args, unknownargs)
if not self._controller:
raise ControllerStartException("Controller exited and doesn't exist...")
self.add( self._controller.get_base_container() )
def _set_size_constraints(self):
self.set_default_size(settings.get_main_window_width(),
settings.get_main_window_height())
self.set_size_request(settings.get_main_window_min_width(),
settings.get_main_window_min_height())
def _set_window_data(self) -> None:
screen = self.get_screen()
visual = screen.get_rgba_visual()
if visual and screen.is_composited() and settings.make_transparent() == 0:
self.set_visual(visual)
self.set_app_paintable(True)
self.connect("draw", self._area_draw)
# bind css file
cssProvider = Gtk.CssProvider()
cssProvider.load_from_path( settings.get_css_file() )
screen = Gdk.Screen.get_default()
styleContext = Gtk.StyleContext()
styleContext.add_provider_for_screen(screen, cssProvider, Gtk.STYLE_PROVIDER_PRIORITY_USER)
def _area_draw(self, widget: Gtk.ApplicationWindow, cr: cairo.Context) -> None:
cr.set_source_rgba( *settings.get_paint_bg_color() )
cr.set_operator(cairo.OPERATOR_SOURCE)
cr.paint()
cr.set_operator(cairo.OPERATOR_OVER)
def _tear_down(self, widget=None, eve=None):
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settings.clear_pid()
time.sleep(event_sleep_time)
Gtk.main_quit()