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import sys
import os
import shutil
from typing import Union
class FontManager:
linux_font_path = "~/.fonts/"
@classmethod
def init_font_manager(cls):
# Linux
if sys.platform.startswith("linux"):
try:
if not os.path.isdir(os.path.expanduser(cls.linux_font_path)):
os.mkdir(os.path.expanduser(cls.linux_font_path))
return True
except Exception as err:
sys.stderr.write("FontManager error: " + str(err) + "\n")
return False
# other platforms
else:
return True
@classmethod
def windows_load_font(cls, font_path: Union[str, bytes], private: bool = True, enumerable: bool = False) -> bool:
""" Function taken from: https://stackoverflow.com/questions/11993290/truly-custom-font-in-tkinter/30631309#30631309 """
from ctypes import windll, byref, create_unicode_buffer, create_string_buffer
FR_PRIVATE = 0x10
FR_NOT_ENUM = 0x20
if isinstance(font_path, bytes):
path_buffer = create_string_buffer(font_path)
add_font_resource_ex = windll.gdi32.AddFontResourceExA
elif isinstance(font_path, str):
path_buffer = create_unicode_buffer(font_path)
add_font_resource_ex = windll.gdi32.AddFontResourceExW
else:
raise TypeError('font_path must be of type bytes or str')
flags = (FR_PRIVATE if private else 0) | (FR_NOT_ENUM if not enumerable else 0)
num_fonts_added = add_font_resource_ex(byref(path_buffer), flags, 0)
return bool(min(num_fonts_added, 1))
@classmethod
def load_font(cls, font_path: str) -> bool:
# Windows
if sys.platform.startswith("win"):
return cls.windows_load_font(font_path, private=True, enumerable=False)
# Linux
elif sys.platform.startswith("linux"):
try:
shutil.copy(font_path, os.path.expanduser(cls.linux_font_path))
return True
except Exception as err:
sys.stderr.write("FontManager error: " + str(err) + "\n")
return False
# macOS and others
else:
return False