Font Atlas Creator - GIMP (Script FU) Plugin

nx_create_font_atlas.py

#!/usr/bin/env python
# Mihail Szabolcs - Released under the WTFPL (http://en.wikipedia.org/wiki/WTFPL) license.

from gimpfu import *

def nx_create_font_atlas(font, font_size, font_weight, antialiasing, uppercase, image_width, image_height, image_type, offset_x, offset_y):
	gimp.set_foreground(255, 255, 255)
	gimp.set_background(0, 0, 0)

	if image_type == GRAY_IMAGE:
		new_image_type = GRAY
	else:
		new_image_type = RGB

	image = gimp.Image(int(image_width), int(image_height), new_image_type)
	image.disable_undo()

	background_layer = gimp.Layer(image, "Background", int(image_width), int(image_height), image_type, 100, NORMAL_MODE)

	if image_type == RGBA_IMAGE:
		background_layer.add_alpha()
		background_layer.fill(TRANSPARENT_FILL)
	else:
		background_layer.fill(BACKGROUND_FILL)

	image.add_layer(background_layer)

	pdb.gimp_image_grid_set_foreground_color(image, (255, 255, 255))
	pdb.gimp_image_grid_set_style(image, GRID_SOLID)
	pdb.gimp_image_grid_set_spacing(image, font_weight, font_size)

	disp = gimp.Display(image)

	chars = [chr(c) for c in xrange(32, 127)]

	if uppercase:
		chars = map(lambda c: c.upper(), chars)

	count = len(chars)
	rows = int(image_width / font_weight)

	for i in range(count):
		c = chars[i]

		x = int((i % rows) * font_weight) + offset_x
		y = int((i / rows) * font_size) + offset_y

		pdb.gimp_text_fontname(image, None, x, y, c, -1, antialiasing, font_size, PIXELS, font)

		gimp.progress_update(float(i) / float(count))

	image.merge_visible_layers(CLIP_TO_IMAGE)
	image.enable_undo()

register(
		"nx_create_font_atlas",
		"Creates a font atlas.",
		"Creates a font atlas.",
		"Mihail Szabolcs",
		"WTFPL",
		"2014-2015",
		"<Toolbox>/File/Create/_Font Atlas",
		"",
		[
			(PF_FONT, "font", "Font", "Monospace"),
			(PF_SPINNER, "font_size", "Size", 32, (4, 512, 1)),
			(PF_SPINNER, "font_weight", "Weight", 32, (4, 512, 1)),
			(PF_BOOL, "antialiasing", "Antialiasing", True),
			(PF_BOOL, "uppercase", "Upper Case (only)", True),
			(PF_SPINNER, "image_width", "Width", 512, (8, 8192, 1)),
			(PF_SPINNER, "image_height", "Height", 512, (8, 8192, 1)),
			(PF_RADIO, "image_type", "Type", GRAY_IMAGE,
				(("Grayscale (8 bit)", GRAY_IMAGE), ("RGB (24 bit)", RGB_IMAGE), ("RGBA (32 bit)", RGBA_IMAGE))),
			(PF_SPINNER, "offset_x", "Offset X", 0, (-8192, 8192, 1)),
			(PF_SPINNER, "offset_y", "Offset Y", 0, (-8192, 8192, 1))
		],
		[],
		nx_create_font_atlas)

main()