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text_label.py
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text_label.py
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"""Module for rendering static single-line on-screen text."""
import pygame
import pygame.font
FONT_FILENAMES = ('Suggested.ttf', 'Suggested3D.ttf')
# Typefaces are actually indexes for FONT_FILENAMES list
TYPEFACE_NORMAL = 0
TYPEFACE_3D = 1
DEFAULT_COLOR = (255, 255, 255)
DEFAULT_SIZE = 24
class TextLabel():
"""Stores text attributes (such as text itself, color, size,
typeface) and renders the text to specified position.
Note: self.rect attribute contains size and position of the label.
You may change position of the rect, but not the size: it may break
proper class operation."""
def __init__(self, scr, text='', color=DEFAULT_COLOR, size=DEFAULT_SIZE,
typeface=TYPEFACE_NORMAL):
"""Input parameters:
scr - pygame.Surface for drawing;
text - text of the label itself;
color - color of the font (list or tuple [r, g, b]);
size - size of the font;
typeface - index of the font typeface."""
self.scr = scr
self.text = text
self.color = list(color)
self.size = size
filename = FONT_FILENAMES[typeface]
self.font = pygame.font.Font(f'fnt/{filename}', self.size)
self.rect = pygame.Rect(0, 0, 0, 0)
self._render()
def _render(self):
self.image = self.font.render(self.text, True, self.color)
self.rect.width, self.rect.height = self.image.get_size()
def draw(self):
"""Renders the label to the surface."""
self.scr.blit(self.image, self.rect)
def set_text(self, text):
"""Sets new text of the label."""
if self.text != text:
self.text = text
self._render()
else:
self.text = text
def set_color(self, color):
"""Sets new color of the label (list or tuple [r, g, b])."""
if self.color != list(color):
self.color = list(color)
self._render()
else:
self.color = list(color)
def set_size(self, size):
"""Sets new size of the label font."""
if self.size != size:
self.size = size
self._render()
else:
self.size = size