Gradience/gradience/frontend/views/main_window.py

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# main_window.py
#
# Change the look of Adwaita, with ease
# Copyright (C) 2022 Gradience Team
#
# 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 3 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.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
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from gi.repository import Gtk, Adw, Gio
from gradience.backend.theming.monet import Monet
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from gradience.backend.constants import rootdir, app_id, build_type
from gradience.frontend.widgets.error_list_row import GradienceErrorListRow
from gradience.frontend.widgets.palette_shades import GradiencePaletteShades
from gradience.frontend.widgets.option_row import GradienceOptionRow
from gradience.frontend.settings_schema import settings_schema
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from gradience.backend.logger import Logger
logging = Logger()
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@Gtk.Template(resource_path=f"{rootdir}/ui/window.ui")
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class GradienceMainWindow(Adw.ApplicationWindow):
__gtype_name__ = "GradienceMainWindow"
content = Gtk.Template.Child()
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toast_overlay = Gtk.Template.Child()
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content_monet = Gtk.Template.Child("content_monet")
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content_plugins = Gtk.Template.Child("content_plugins")
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save_preset_button = Gtk.Template.Child("save-preset-button")
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main_menu = Gtk.Template.Child("main-menu")
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errors_button = Gtk.Template.Child("errors-button")
errors_list = Gtk.Template.Child("errors-list")
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presets_dropdown = Gtk.Template.Child("presets-dropdown")
presets_menu = Gtk.Template.Child("presets-menu")
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monet_image_file = None
def __init__(self, **kwargs):
super().__init__(**kwargs)
self.app = Gtk.Application.get_default()
self.settings = Gio.Settings(app_id)
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self.presets_dropdown.get_popover().connect(
"show", self.on_presets_dropdown_activate
)
# Set devel style
if build_type == "debug":
self.get_style_context().add_class("devel")
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self.setup_monet_page()
self.setup_colors_page()
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self.connect("close-request", self.on_close_request)
self.connect("unrealize", self.save_window_props)
self.style_manager = self.app.style_manager
#self.first_apply = True
self.get_default_wallpaper()
# TODO: Check if org.freedesktop.portal.Settings portal will allow us to \
# read org.gnome.desktop.background DConf key
def get_default_wallpaper(self):
background_settings = Gio.Settings("org.gnome.desktop.background")
if self.style_manager.get_dark():
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picture_uri = background_settings.get_string("picture-uri-dark")
else:
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picture_uri = background_settings.get_string("picture-uri")
logging.debug(picture_uri)
if picture_uri.startswith("file://"):
self.monet_image_file = Gio.File.new_for_uri(picture_uri)
else:
self.monet_image_file = Gio.File.new_for_path(picture_uri)
image_basename = self.monet_image_file.get_basename()
logging.debug(image_basename)
self.monet_image_file = self.monet_image_file.get_path()
self.monet_file_chooser_button.set_label(image_basename)
self.monet_file_chooser_button.set_tooltip_text(self.monet_image_file)
logging.debug(self.monet_image_file)
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# self.on_apply_button() # Comment out for now, because it always shows
# that annoying toast on startup
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def on_file_picker_button_clicked(self, *args):
self.monet_file_chooser_dialog.show()
def on_close_request(self, *args):
if self.app.is_dirty:
logging.debug("Window close request")
self.app.show_unsaved_dialog()
return True
self.close()
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def save_window_props(self, *args):
win_size = self.get_default_size()
self.settings.set_int("window-width", win_size.width)
self.settings.set_int("window-height", win_size.height)
self.settings.set_boolean("window-maximized", self.is_maximized())
self.settings.set_boolean("window-fullscreen", self.is_fullscreen())
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def on_monet_file_chooser_response(self, widget, response):
if response == Gtk.ResponseType.ACCEPT:
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self.monet_image_file = self.monet_file_chooser_dialog.get_file()
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image_basename = self.monet_image_file.get_basename()
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self.monet_file_chooser_button.set_label(image_basename)
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self.monet_file_chooser_button.set_tooltip_text(image_basename)
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self.monet_file_chooser_dialog.hide()
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if response == Gtk.ResponseType.ACCEPT:
self.monet_image_file = self.monet_image_file.get_path()
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self.on_apply_button()
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def setup_monet_page(self):
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self.monet_pref_group = Adw.PreferencesGroup()
self.monet_pref_group.set_name("monet")
self.monet_pref_group.set_title(_("Monet Engine"))
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self.monet_pref_group.set_description(
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_(
"Monet is an engine that generates a Material Design 3 "
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"palette from an image's color."
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)
)
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self.apply_button = Gtk.Button()
self.apply_button.set_label(_("Apply"))
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self.apply_button.set_valign(Gtk.Align.CENTER)
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self.apply_button.connect("clicked", self.on_apply_button)
self.apply_button.set_css_classes("suggested-action")
self.monet_pref_group.set_header_suffix(self.apply_button)
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self.monet_file_chooser_row = Adw.ActionRow()
self.monet_file_chooser_row.set_title(_("Background Image"))
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self.monet_file_chooser_dialog = Gtk.FileChooserNative()
self.monet_file_chooser_dialog.set_transient_for(self)
self.monet_file_chooser_dialog.set_modal(True)
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self.monet_file_chooser_button = Gtk.Button()
self.monet_file_chooser_button.set_valign(Gtk.Align.CENTER)
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child_button = Gtk.Box()
label = Gtk.Label()
label.set_label(_("Choose a File"))
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child_button.append(label)
icon = Gtk.Image()
icon.set_from_icon_name("folder-pictures-symbolic")
child_button.append(icon)
child_button.set_spacing(5)
self.monet_file_chooser_button.set_child(child_button)
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self.monet_file_chooser_button.connect(
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"clicked", self.on_file_picker_button_clicked
)
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self.monet_file_chooser_dialog.connect(
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"response", self.on_monet_file_chooser_response
)
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self.monet_file_chooser_row.add_suffix(self.monet_file_chooser_button)
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self.monet_pref_group.add(self.monet_file_chooser_row)
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self.monet_palette_shades = GradiencePaletteShades(
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"monet", _("Monet Palette"), 6
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)
self.app.pref_palette_shades["monet"] = self.monet_palette_shades
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self.monet_pref_group.add(self.monet_palette_shades)
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self.tone_row = Adw.ComboRow()
self.tone_row.set_title(_("Tone"))
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store = Gtk.StringList()
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store_values = []
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for i in range(20, 80, 5):
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store_values.append(str(i))
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for v in store_values:
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store.append(v)
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self.tone_row.set_model(store)
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self.monet_pref_group.add(self.tone_row)
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self.monet_theme_row = Adw.ComboRow()
self.monet_theme_row.set_title(_("Theme"))
store = Gtk.StringList()
store.append(_("Auto"))
store.append(_("Light"))
store.append(_("Dark"))
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self.monet_theme_row.set_model(store)
self.monet_pref_group.add(self.monet_theme_row)
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self.content_monet.add(self.monet_pref_group)
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def on_apply_button(self, *_args):
if self.monet_image_file:
try:
self.theme = Monet().generate_from_image(self.monet_image_file)
self.tone = self.tone_row.get_selected_item()
self.monet_theme = self.monet_theme_row.get_selected_item()
self.app.custom_css_group.reset_buffer()
self.app.update_theme_from_monet(
self.theme, self.tone, self.monet_theme
)
except (OSError, AttributeError, ValueError):
logging.error("Failed to generate Monet palette.")
self.toast_overlay.add_toast(
Adw.Toast(title=_("Failed to generate Monet palette"))
)
else:
self.toast_overlay.add_toast(
Adw.Toast(title=_("Palette generated"))
)
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else:
self.toast_overlay.add_toast(
Adw.Toast(title=_("Select a background first"))
)
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def setup_colors_page(self):
for group in settings_schema["groups"]:
pref_group = Adw.PreferencesGroup()
pref_group.set_name(group["name"])
pref_group.set_title(group["title"])
pref_group.set_description(group["description"])
for variable in group["variables"]:
pref_variable = GradienceOptionRow(
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variable["name"],
variable["title"],
variable.get("explanation"),
variable["adw_gtk3_support"],
)
pref_group.add(pref_variable)
self.app.pref_variables[variable["name"]] = pref_variable
self.content.add(pref_group)
palette_pref_group = Adw.PreferencesGroup()
palette_pref_group.set_name("palette_colors")
palette_pref_group.set_title(_("Palette Colors"))
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palette_pref_group.set_description(
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_(
"Named palette colors used by some applications. Default "
"colors follow the "
'<a href="https://developer.gnome.org/hig/reference/palette.html">'
"GNOME Human Interface Guidelines</a>."
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)
)
for color in settings_schema["palette"]:
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palette_shades = GradiencePaletteShades(
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color["prefix"], color["title"], color["n_shades"]
)
palette_pref_group.add(palette_shades)
self.app.pref_palette_shades[color["prefix"]] = palette_shades
self.content.add(palette_pref_group)
def update_errors(self, errors):
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child = self.errors_list.get_row_at_index(0)
while child is not None:
self.errors_list.remove(child)
child = self.errors_list.get_row_at_index(0)
self.errors_button.set_visible(len(errors) > 0)
for error in errors:
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self.errors_list.append(
GradienceErrorListRow(error["error"], error["element"], error["line"])
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)
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def on_presets_dropdown_activate(self, *args):
self.app.reload_user_defined_presets()