v.0.5.0 cleanup code, utils ...

app/utils/font_utils.py

@@ -0,0 +1,82 @@
+from .math_utils import show_byte_matrix
+
+def char_width(char_matrix) -> int:
+	"""Berechnung der Bits für die Zeichenbreite
+
+	Args:
+			char_matrix (int): Zeichen als Array[int]
+
+	Returns:
+			int: Anzahl Bits für die Zeichenbreite
+	"""
+	max_val = max(char_matrix)
+
+	val = max_val
+	cw = 0
+	while 0xFFFFFFFF & val:
+		"""rechts shiften, bis alles Nullen da sind"""
+		val >>= 1
+		cw += 1
+
+	return cw
+
+def shift_letter_right(char, letter, debug=False) -> bool:
+	"""Prüfe ob das Zeichen auch komplett nach rechts gezogen ist
+
+	Args:
+			letter (_type_): Array[0..nBytes]
+
+	Returns:
+			bool: _description_
+	"""
+
+	def isLetterRight(letter):
+		def isByteRight(byte):
+			return True if 1 & byte == 1 else False
+
+		for byte in letter:
+			if isByteRight(byte):
+				return True
+
+		return False
+
+	def shiftLetterRight(letter):
+		def shift(letter):
+			return [byte >> 1 for byte in letter]
+
+		shifted = letter
+		for i in range(8):  # max 1 Bit's
+			shifted = shift(shifted)
+			if isLetterRight(shifted):
+				break
+
+		return shifted
+
+	if isLetterRight(letter):
+		return letter
+
+	# letter is not right shifted
+	shifted = shiftLetterRight(letter)
+
+	if debug:
+		print('origin:')
+		show_byte_matrix(char, letter)
+		print('shifted')
+		show_byte_matrix(char, shifted)
+
+	return shifted
+
+def align_font(font, debug=False):
+	chars = [char for char in font]
+	print(chars)
+
+	# Print the dictionary
+	print('font_pretty = {')
+	for char in sorted(font.keys()):
+		shifted = shift_letter_right(char=char, letter=font[char], debug=debug)
+		hex_values = [f'0x{val:02X}' for val in shifted]
+		print(f"\t'{char}': [{', '.join(hex_values)}],")
+	print('}')
+
+	# return f'#keys: {len(list(font.keys()))}'
+	return f'#keys: {len(font)}'