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faceswap/lib/gui/display_page.py

287 lines
10 KiB
Python

#!/usr/bin python3
""" Display Page parent classes for display section of the Faceswap GUI """
import gettext
import logging
import tkinter as tk
from tkinter import ttk
from .custom_widgets import Tooltip
from .utils import get_images
logger = logging.getLogger(__name__) # pylint: disable=invalid-name
# LOCALES
_LANG = gettext.translation("gui.tooltips", localedir="locales", fallback=True)
_ = _LANG.gettext
class DisplayPage(ttk.Frame): # pylint: disable=too-many-ancestors
""" Parent frame holder for each tab.
Defines uniform structure for each tab to inherit from """
def __init__(self, parent, tab_name, helptext):
super().__init__(parent)
self._parent = parent
self.running_task = parent.running_task
self.helptext = helptext
self.tabname = tab_name
self.vars = {"info": tk.StringVar()}
self.add_optional_vars(self.set_vars())
self.subnotebook = self.add_subnotebook()
self.optsframe = self.add_options_frame()
self.add_options_info()
self.add_frame_separator()
self.set_mainframe_single_tab_style()
self.pack(fill=tk.BOTH, side=tk.TOP, anchor=tk.NW)
parent.add(self, text=self.tabname.title())
@property
def _tab_is_active(self):
""" bool: ``True`` if the tab currently has focus otherwise ``False`` """
return self._parent.tab(self._parent.select(), "text").lower() == self.tabname.lower()
def add_optional_vars(self, varsdict):
""" Add page specific variables """
if isinstance(varsdict, dict):
for key, val in varsdict.items():
logger.debug("Adding: (%s: %s)", key, val)
self.vars[key] = val
def set_vars(self):
""" Override to return a dict of page specific variables """
return {}
def on_tab_select(self):
""" Override for specific actions when the current tab is selected """
logger.debug("Returning as 'on_tab_select' not implemented for %s",
self.__class__.__name__)
def add_subnotebook(self):
""" Add the main frame notebook """
logger.debug("Adding subnotebook")
notebook = ttk.Notebook(self)
notebook.pack(side=tk.TOP, anchor=tk.NW, fill=tk.BOTH, expand=True)
return notebook
def add_options_frame(self):
""" Add the display tab options """
logger.debug("Adding options frame")
optsframe = ttk.Frame(self)
optsframe.pack(side=tk.BOTTOM, padx=5, pady=5, fill=tk.X)
return optsframe
def add_options_info(self):
""" Add the info bar """
logger.debug("Adding options info")
lblinfo = ttk.Label(self.optsframe,
textvariable=self.vars["info"],
anchor=tk.W)
lblinfo.pack(side=tk.LEFT, expand=True, padx=5, pady=5, anchor=tk.W)
def set_info(self, msg):
""" Set the info message """
logger.debug("Setting info: %s", msg)
self.vars["info"].set(msg)
def add_frame_separator(self):
""" Add a separator between top and bottom frames """
logger.debug("Adding frame seperator")
sep = ttk.Frame(self, height=2, relief=tk.RIDGE)
sep.pack(fill=tk.X, pady=(5, 0), side=tk.BOTTOM)
@staticmethod
def set_mainframe_single_tab_style():
""" Configure ttk notebook style to represent a single frame """
logger.debug("Setting main frame single tab style")
nbstyle = ttk.Style()
nbstyle.configure("single.TNotebook", borderwidth=0)
nbstyle.layout("single.TNotebook.Tab", [])
def subnotebook_add_page(self, tabtitle, widget=None):
""" Add a page to the sub notebook """
logger.debug("Adding subnotebook page: %s", tabtitle)
frame = widget if widget else ttk.Frame(self.subnotebook)
frame.pack(padx=5, pady=5, fill=tk.BOTH, expand=True)
self.subnotebook.add(frame, text=tabtitle)
self.subnotebook_configure()
return frame
def subnotebook_configure(self):
""" Configure notebook to display or hide tabs """
if len(self.subnotebook.children) == 1:
logger.debug("Setting single page style")
self.subnotebook.configure(style="single.TNotebook")
else:
logger.debug("Setting multi page style")
self.subnotebook.configure(style="TNotebook")
def subnotebook_hide(self):
""" Hide the subnotebook. Used for hiding
Optional displays """
if self.subnotebook and self.subnotebook.winfo_ismapped():
logger.debug("Hiding subnotebook")
self.subnotebook.pack_forget()
self.subnotebook.destroy()
self.subnotebook = None
def subnotebook_show(self):
""" Show subnotebook. Used for displaying
Optional displays """
if not self.subnotebook:
logger.debug("Showing subnotebook")
self.subnotebook = self.add_subnotebook()
def subnotebook_get_widgets(self):
""" Return each widget that sits within each
subnotebook frame """
logger.debug("Getting subnotebook widgets")
for child in self.subnotebook.winfo_children():
for widget in child.winfo_children():
yield widget
def subnotebook_get_titles_ids(self):
""" Return tabs ids and titles """
tabs = {}
for tab_id in range(0, self.subnotebook.index("end")):
tabs[self.subnotebook.tab(tab_id, "text")] = tab_id
logger.debug(tabs)
return tabs
def subnotebook_page_from_id(self, tab_id):
""" Return subnotebook tab widget from it's ID """
tab_name = self.subnotebook.tabs()[tab_id].split(".")[-1]
logger.debug(tab_name)
return self.subnotebook.children[tab_name]
class DisplayOptionalPage(DisplayPage): # pylint: disable=too-many-ancestors
""" Parent Context Sensitive Display Tab """
def __init__(self, parent, tab_name, helptext, wait_time, command=None):
super().__init__(parent, tab_name, helptext)
self._waittime = wait_time
self.command = command
self.display_item = None
self.set_info_text()
self.add_options()
parent.select(self)
self.update_idletasks()
self._update_page()
def set_vars(self):
""" Analysis specific vars """
enabled = tk.BooleanVar()
enabled.set(True)
ready = tk.BooleanVar()
ready.set(False)
tk_vars = {"enabled": enabled,
"ready": ready}
logger.debug(tk_vars)
return tk_vars
def on_tab_select(self):
""" Callback for when the optional tab is selected.
Run the tab's update code when the tab is selected.
"""
logger.debug("Callback received for '%s' tab", self.tabname)
self._update_page()
# INFO LABEL
def set_info_text(self):
""" Set waiting for display text """
if not self.vars["enabled"].get():
msg = f"{self.tabname.title()} disabled"
elif self.vars["enabled"].get() and not self.vars["ready"].get():
msg = f"Waiting for {self.tabname}..."
else:
msg = f"Displaying {self.tabname}"
logger.debug(msg)
self.set_info(msg)
# DISPLAY OPTIONS BAR
def add_options(self):
""" Add the additional options """
self.add_option_save()
self.add_option_enable()
def add_option_save(self):
""" Add save button to save page output to file """
logger.debug("Adding save option")
btnsave = ttk.Button(self.optsframe,
image=get_images().icons["save"],
command=self.save_items)
btnsave.pack(padx=2, side=tk.RIGHT)
Tooltip(btnsave,
text=_(f"Save {self.tabname}(s) to file"),
wrap_length=200)
def add_option_enable(self):
""" Add check-button to enable/disable page """
logger.debug("Adding enable option")
chkenable = ttk.Checkbutton(self.optsframe,
variable=self.vars["enabled"],
text=f"Enable {self.tabname}",
command=self.on_chkenable_change)
chkenable.pack(side=tk.RIGHT, padx=5, anchor=tk.W)
Tooltip(chkenable,
text=_(f"Enable or disable {self.tabname} display"),
wrap_length=200)
def save_items(self):
""" Save items. Override for display specific saving """
raise NotImplementedError()
def on_chkenable_change(self):
""" Update the display immediately on a check-button change """
logger.debug("Enabled checkbox changed")
if self.vars["enabled"].get():
self.subnotebook_show()
else:
self.subnotebook_hide()
self.set_info_text()
def _update_page(self):
""" Update the latest preview item """
if not self.running_task.get() or not self._tab_is_active:
return
if self.vars["enabled"].get():
logger.trace("Updating page: %s", self.__class__.__name__)
self.display_item_set()
self.load_display()
self.after(self._waittime, self._update_page)
def display_item_set(self):
""" Override for display specific loading """
raise NotImplementedError()
def load_display(self):
""" Load the display """
if not self.display_item or not self._tab_is_active:
return
logger.debug("Loading display for tab: %s", self.tabname)
self.display_item_process()
self.vars["ready"].set(True)
self.set_info_text()
def display_item_process(self):
""" Override for display specific loading """
raise NotImplementedError()
def close(self):
""" Called when the parent notebook is shutting down
Children must be destroyed as forget only hides display
Override for page specific shutdown """
for child in self.winfo_children():
logger.debug("Destroying child: %s", child)
child.destroy()