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#
# The Python Imaging Library
# $Id$
#
# WCK-style drawing interface operations
#
# History:
# 2003-12-07 fl created
# 2005-05-15 fl updated; added to PIL as ImageDraw2
# 2005-05-15 fl added text support
# 2005-05-20 fl added arc/chord/pieslice support
#
# Copyright (c) 2003-2005 by Secret Labs AB
# Copyright (c) 2003-2005 by Fredrik Lundh
#
# See the README file for information on usage and redistribution.
#
import Image, ImageColor, ImageDraw, ImageFont, ImagePath
class Pen:
def __init__(self, color, width=1, opacity=255):
self.color = ImageColor.getrgb(color)
self.width = width
class Brush:
def __init__(self, color, opacity=255):
self.color = ImageColor.getrgb(color)
class Font:
def __init__(self, color, file, size=12):
# FIXME: add support for bitmap fonts
self.color = ImageColor.getrgb(color)
self.font = ImageFont.truetype(file, size)
class Draw:
def __init__(self, image, size=None, color=None):
if not hasattr(image, "im"):
image = Image.new(image, size, color)
self.draw = ImageDraw.Draw(image)
self.image = image
self.transform = None
def flush(self):
return self.image
def render(self, op, xy, pen, brush=None):
# handle color arguments
outline = fill = None; width = 1
if isinstance(pen, Pen):
outline = pen.color
width = pen.width
elif isinstance(brush, Pen):
outline = brush.color
width = brush.width
if isinstance(brush, Brush):
fill = brush.color
elif isinstance(pen, Brush):
fill = pen.color
# handle transformation
if self.transform:
xy = ImagePath.Path(xy)
xy.transform(self.transform)
# render the item
if op == "line":
self.draw.line(xy, fill=outline, width=width)
else:
getattr(self.draw, op)(xy, fill=fill, outline=outline)
def settransform(self, (xoffset, yoffset)):
self.transform = (1, 0, xoffset, 0, 1, yoffset)
def arc(self, xy, start, end, *options):
self.render("arc", xy, start, end, *options)
def chord(self, xy, start, end, *options):
self.render("chord", xy, start, end, *options)
def ellipse(self, xy, *options):
self.render("ellipse", xy, *options)
def line(self, xy, *options):
self.render("line", xy, *options)
def pieslice(self, xy, start, end, *options):
self.render("pieslice", xy, start, end, *options)
def polygon(self, xy, *options):
self.render("polygon", xy, *options)
def rectangle(self, xy, *options):
self.render("rectangle", xy, *options)
def symbol(self, xy, symbol, *options):
raise NotImplementedError("not in this version")
def text(self, xy, text, font):
if self.transform:
xy = ImagePath.Path(xy)
xy.transform(self.transform)
self.draw.text(xy, text, font=font.font, fill=font.color)
def textsize(self, text, font):
return self.draw.textsize(text, font=font.font)