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myNotebook.py
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myNotebook.py
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"""
Custom `ttk.Notebook` to fix various display issues.
Hacks to fix various display issues with notebooks and their child widgets on
OSX and Windows.
- Windows: page background should be White, not SystemButtonFace
- OSX: page background should be a darker gray than systemWindowBody
selected tab foreground should be White when the window is active
Entire file may be imported by plugins.
"""
from __future__ import annotations
import sys
import tkinter as tk
from tkinter import ttk
# Can't do this with styles on OSX - http://www.tkdocs.com/tutorial/styles.html#whydifficult
if sys.platform == 'darwin':
from platform import mac_ver
PAGEFG = 'systemButtonText'
PAGEBG = 'systemButtonActiveDarkShadow'
elif sys.platform == 'win32':
PAGEFG = 'SystemWindowText'
PAGEBG = 'SystemWindow' # typically white
class Notebook(ttk.Notebook):
"""Custom ttk.Notebook class to fix some display issues."""
def __init__(self, master: ttk.Frame | None = None, **kw):
ttk.Notebook.__init__(self, master, **kw)
style = ttk.Style()
if sys.platform == 'darwin':
if list(map(int, mac_ver()[0].split('.'))) >= [10, 10]:
# Hack for tab appearance with 8.5 on Yosemite & El Capitan. For proper fix see
# https://github.com/tcltk/tk/commit/55c4dfca9353bbd69bbcec5d63bf1c8dfb461e25
style.configure('TNotebook.Tab', padding=(12, 10, 12, 2))
style.map('TNotebook.Tab', foreground=[('selected', '!background', 'systemWhite')])
self.grid(sticky=tk.NSEW) # Already padded apropriately
elif sys.platform == 'win32':
style.configure('nb.TFrame', background=PAGEBG)
style.configure('nb.TButton', background=PAGEBG)
style.configure('nb.TCheckbutton', foreground=PAGEFG, background=PAGEBG)
style.configure('nb.TMenubutton', foreground=PAGEFG, background=PAGEBG)
style.configure('nb.TRadiobutton', foreground=PAGEFG, background=PAGEBG)
self.grid(padx=10, pady=10, sticky=tk.NSEW)
else:
self.grid(padx=10, pady=10, sticky=tk.NSEW)
# FIXME: The real fix for this 'dynamic type' would be to split this whole
# thing into being a module with per-platform files, as we've done with config
# That would also make the code cleaner.
class Frame(sys.platform == 'darwin' and tk.Frame or ttk.Frame): # type: ignore
"""Custom t(t)k.Frame class to fix some display issues."""
def __init__(self, master: ttk.Notebook | None = None, **kw):
if sys.platform == 'darwin':
kw['background'] = kw.pop('background', PAGEBG)
tk.Frame.__init__(self, master, **kw)
tk.Frame(self).grid(pady=5)
elif sys.platform == 'win32':
ttk.Frame.__init__(self, master, style='nb.TFrame', **kw)
ttk.Frame(self).grid(pady=5) # top spacer
else:
ttk.Frame.__init__(self, master, **kw)
ttk.Frame(self).grid(pady=5) # top spacer
self.configure(takefocus=1) # let the frame take focus so that no particular child is focused
class Label(tk.Label):
"""Custom tk.Label class to fix some display issues."""
def __init__(self, master: ttk.Frame | None = None, **kw):
# This format chosen over `sys.platform in (...)` as mypy and friends dont understand that
if sys.platform in ('darwin', 'win32'):
kw['foreground'] = kw.pop('foreground', PAGEFG)
kw['background'] = kw.pop('background', PAGEBG)
else:
kw['foreground'] = kw.pop('foreground', ttk.Style().lookup('TLabel', 'foreground'))
kw['background'] = kw.pop('background', ttk.Style().lookup('TLabel', 'background'))
tk.Label.__init__(self, master, **kw) # Just use tk.Label on all platforms
class Entry(sys.platform == 'darwin' and tk.Entry or ttk.Entry): # type: ignore
"""Custom t(t)k.Entry class to fix some display issues."""
def __init__(self, master: ttk.Frame | None = None, **kw):
if sys.platform == 'darwin':
kw['highlightbackground'] = kw.pop('highlightbackground', PAGEBG)
tk.Entry.__init__(self, master, **kw)
else:
ttk.Entry.__init__(self, master, **kw)
class Button(sys.platform == 'darwin' and tk.Button or ttk.Button): # type: ignore
"""Custom t(t)k.Button class to fix some display issues."""
def __init__(self, master: ttk.Frame | None = None, **kw):
if sys.platform == 'darwin':
kw['highlightbackground'] = kw.pop('highlightbackground', PAGEBG)
tk.Button.__init__(self, master, **kw)
elif sys.platform == 'win32':
ttk.Button.__init__(self, master, style='nb.TButton', **kw)
else:
ttk.Button.__init__(self, master, **kw)
class ColoredButton(sys.platform == 'darwin' and tk.Label or tk.Button): # type: ignore
"""Custom t(t)k.ColoredButton class to fix some display issues."""
def __init__(self, master: ttk.Frame | None = None, **kw):
if sys.platform == 'darwin':
# Can't set Button background on OSX, so use a Label instead
kw['relief'] = kw.pop('relief', tk.RAISED)
self._command = kw.pop('command', None)
tk.Label.__init__(self, master, **kw)
self.bind('<Button-1>', self._press)
else:
tk.Button.__init__(self, master, **kw)
if sys.platform == 'darwin':
def _press(self, event):
self._command()
class Checkbutton(sys.platform == 'darwin' and tk.Checkbutton or ttk.Checkbutton): # type: ignore
"""Custom t(t)k.Checkbutton class to fix some display issues."""
def __init__(self, master: ttk.Frame | None = None, **kw):
if sys.platform == 'darwin':
kw['foreground'] = kw.pop('foreground', PAGEFG)
kw['background'] = kw.pop('background', PAGEBG)
tk.Checkbutton.__init__(self, master, **kw)
elif sys.platform == 'win32':
ttk.Checkbutton.__init__(self, master, style='nb.TCheckbutton', **kw)
else:
ttk.Checkbutton.__init__(self, master, **kw)
class Radiobutton(sys.platform == 'darwin' and tk.Radiobutton or ttk.Radiobutton): # type: ignore
"""Custom t(t)k.Radiobutton class to fix some display issues."""
def __init__(self, master: ttk.Frame | None = None, **kw):
if sys.platform == 'darwin':
kw['foreground'] = kw.pop('foreground', PAGEFG)
kw['background'] = kw.pop('background', PAGEBG)
tk.Radiobutton.__init__(self, master, **kw)
elif sys.platform == 'win32':
ttk.Radiobutton.__init__(self, master, style='nb.TRadiobutton', **kw)
else:
ttk.Radiobutton.__init__(self, master, **kw)
class OptionMenu(sys.platform == 'darwin' and tk.OptionMenu or ttk.OptionMenu): # type: ignore
"""Custom t(t)k.OptionMenu class to fix some display issues."""
def __init__(self, master, variable, default=None, *values, **kw):
if sys.platform == 'darwin':
variable.set(default)
bg = kw.pop('background', PAGEBG)
tk.OptionMenu.__init__(self, master, variable, *values, **kw)
self['background'] = bg
elif sys.platform == 'win32':
# OptionMenu derives from Menubutton at the Python level, so uses Menubutton's style
ttk.OptionMenu.__init__(self, master, variable, default, *values, style='nb.TMenubutton', **kw)
self['menu'].configure(background=PAGEBG)
# Workaround for https://bugs.python.org/issue25684
for i in range(0, self['menu'].index('end')+1):
self['menu'].entryconfig(i, variable=variable)
else:
ttk.OptionMenu.__init__(self, master, variable, default, *values, **kw)
self['menu'].configure(background=ttk.Style().lookup('TMenu', 'background'))
# Workaround for https://bugs.python.org/issue25684
for i in range(0, self['menu'].index('end')+1):
self['menu'].entryconfig(i, variable=variable)