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# PyEPL: hardware/graphics/font.py
#
# Copyright (C) 2003-2005 Michael J. Kahana
# Authors: Ian Schleifer, Per Sederberg, Aaron Geller, Josh Jacobs
# URL: http://memory.psych.upenn.edu/programming/pyepl
#
# Distributed under the terms of the GNU Lesser General Public License
# (LGPL). See the license.txt that came with this file.
"""
Low level font access.
"""
import pygame
import pygame.surfarray
from pygame.locals import *
import image
import numpy
class LowFont:
"""
Represents a loaded TrueType font.
"""
def __init__(self, filename):
"""
Create LowFont.
"""
self.filename = filename
self.size = None
self.font = None
def setSize(self, size):
"""
"""
if size != self.size:
self.font = pygame.font.Font(self.filename, size)
self.size = size
def write(self, text, size, color):
"""
Render string text onto new LowImage with point size size.
"""
self.setSize(size)
img = self.font.render(text, True, (255, 255, 255)).convert_alpha()
if len(color) == 4 and color[3] != 1.0:
alpha = pygame.surfarray.pixels_alpha(img)
# changed the following from Numeric.UInt8
alpha[:, :] = (alpha[:, :] * color[3]).astype(numpy.uint8)
del alpha
pixels = pygame.surfarray.pixels3d(img)
pixels[:, :, 0] = int(color[0] * 255)
pixels[:, :, 1] = int(color[1] * 255)
pixels[:, :, 2] = int(color[2] * 255)
del pixels
return image.LowImage(img)
def getSize(self, text, size):
"""
Return a 2-tuple of the x, y pixel size of text rendered in
this font at point size size.
"""
self.setSize(size)
return self.font.size(text)
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