# Copyright 2017 The Tangram Developers. See the AUTHORS file at the
# top-level directory of this distribution and at
# https://github.com/renatoGarcia/tangram/blob/master/AUTHORS.
#
# This file is part of Tangram.
#
# Tangram is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Tangram 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with Tangram in the COPYING and COPYING.LESSER files.
# If not, see <http://www.gnu.org/licenses/>.
from gi.repository import GLib, Gtk
from .._base import Base
from .._gui_thread import on_gtk_thread
from .._utility import Signal
from .keys import Key, InputState
class _MainWindow(Gtk.Window):
def __init__(self, widget, title):
Gtk.Window.__init__(self, title=title)
self.add(widget)
[docs]class MainWindow(Base):
"""Main window holding all tangram widgets.
All widgets inside MainWindow can be accessed as a class attribute, by its name
argument set at creation.
Signals:
:key_press(key, input_state): Emitted when a key is pressed on mainWindow.
:key_release(key, input_state): Emitted when a key is released on mainWindow.
"""
[docs] @on_gtk_thread
def __init__(self, widget, *, title: str = "Tangram"):
super().__init__()
self._gtk_obj = _MainWindow(widget._gtk_obj, title)
self._widget = widget
self.key_press = Signal()
self.key_release = Signal()
self.destroy = Signal()
self._gtk_obj.connect('key-press-event', self.__on_key_press)
self._gtk_obj.connect('key-release-event', self.__on_key_release)
self._gtk_obj.connect('focus-out-event', self.__on_focus_out_event)
self._gtk_obj.connect('destroy', lambda widget: self.destroy.emit())
def __getattr__(self, name):
try:
return Base._get_item(name)
except KeyError:
pass
raise AttributeError(name)
def __on_key_press(self, widget, event):
key = Key(event.keyval)
Base._pressed_keys.add(key)
input_state = InputState(Base._pressed_keys, event.state)
self.key_press.emit(key, input_state)
return GLib.SOURCE_REMOVE
def __on_key_release(self, widget, event):
key = Key(event.keyval)
Base._pressed_keys.discard(key)
input_state = InputState(Base._pressed_keys, event.state)
self.key_release.emit(key, input_state)
return GLib.SOURCE_REMOVE
def __on_focus_out_event(cls, widget, event):
Base._pressed_keys.clear()
return GLib.SOURCE_REMOVE
@on_gtk_thread
def show(self):
self._gtk_obj.show_all()
@on_gtk_thread
def close(self):
self._gtk_obj.close()