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import os
from abc import ABC
from dataclasses import dataclass
from typing import Optional
import typing
import xml.dom.minidom as minidom
if typing.TYPE_CHECKING:
from .twod import Texture
from .app import TxtGameApp
class Font(ABC):
def __init__(self):
self.glyphs = dict()
def get_glyph(self, char: str) -> Optional['Glyph']:
return self.glyphs.get(char)
@dataclass
class Glyph:
font: 'Font'
x_texture_offset: int
y_texture_offset: int
x_texture_width: int
y_texture_width: int
x_render_offset: int
y_render_offset: int
x_advance: int
class BitmapFont(Font):
def __init__(self, texture: Texture, xml_path: str):
self.texture = texture
dom = minidom.parse(xml_path)
for char in dom.getElementsByTagName('Char'):
code = char.attributes['code'].value
width = char.attributes['width'].value
x_render_offset, y_render_offset = char.attributes['offset'].value.split(' ')
x_texture_offset, y_texture_offset, x_texture_width, y_texture_width = char.attributes['rect'].split(' ')
self.glyphs[code] = \
Glyph(self, int(x_texture_offset), int(y_texture_offset), int(x_texture_width), int(y_texture_width),
int(x_render_offset), int(y_render_offset), int(width))
@classmethod
def load(cls, app: 'TxtGameApp', image_path: os.PathLike, xml_path: os.PathLike):
from .twod import Texture
return cls(Texture(app, image_path), xml_path)
class TextRenderer:
def __init__(self, app: 'TxtGameApp'):
self.app = app
def use_font(self, font: Font):
self.font = font
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