home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
OS/2 Shareware BBS: 10 Tools
/
10-Tools.zip
/
pypil112.zip
/
PIL-1.1.2.zip
/
Lib
/
site-packages
/
PIL
/
ImageDraw.py
< prev
next >
Wrap
Text File
|
2001-05-03
|
5KB
|
169 lines
#
# The Python Imaging Library
# $Id$
#
# drawing interface operations
#
# History:
# 1996-04-13 fl Created (experimental)
# 1996-08-07 fl Filled polygons, ellipses.
# 1996-08-13 fl Added text support
# 1998-06-28 fl Handle I and F images
# 1998-12-29 fl Added arc; use arc primitive to draw ellipses
# 1999-01-10 fl Added shape stuff (experimental)
# 1999-02-06 fl Added bitmap support
# 1999-02-11 fl Changed all primitives to take options
# 1999-02-20 fl Fixed backwards compatibility
# 2000-10-12 fl Copy on write, when necessary
# 2001-02-18 fl Use default ink for bitmap/text also in fill mode
#
# Copyright (c) 1997-2001 by Secret Labs AB
# Copyright (c) 1996-2001 by Fredrik Lundh
#
# See the README file for information on usage and redistribution.
#
import Image
class Draw:
def __init__(self, im):
im.load()
if im.readonly:
im._copy() # make it writable
self.im = im.im
if im.mode in ("I", "F"):
self.ink = self.im.draw_ink(1)
else:
self.ink = self.im.draw_ink(-1)
self.fill = 0
self.font = None
#
# attributes
def setink(self, ink):
# compatibility
self.ink = self.im.draw_ink(ink)
def setfill(self, onoff):
# compatibility
self.fill = onoff
def setfont(self, font):
# compatibility
self.font = font
def getfont(self):
if not self.font:
# FIXME: should add a font repository
import ImageFont
self.font = ImageFont.load_path("BDF/courR14.pil")
return self.font
def textsize(self, text, font=None):
if font is None:
font = self.getfont()
return font.getsize(text)
def _getink(self, ink, fill=None):
if ink is None and fill is None:
if self.fill:
fill = self.ink
else:
ink = self.ink
else:
if ink is not None:
ink = self.im.draw_ink(ink)
if fill is not None:
fill = self.im.draw_ink(fill)
return ink, fill
#
# primitives
def arc(self, xy, start, end, fill=None):
ink, fill = self._getink(fill)
if ink is not None:
self.im.draw_arc(xy, start, end, ink)
def bitmap(self, xy, bitmap, fill=None):
bitmap.load()
ink, fill = self._getink(fill)
if ink is None:
ink = fill
if ink is not None:
self.im.draw_bitmap(xy, bitmap.im, ink)
def chord(self, xy, start, end, fill=None, outline=None):
ink, fill = self._getink(outline, fill)
if fill is not None:
self.im.draw_chord(xy, start, end, fill, 1)
if ink is not None:
self.im.draw_chord(xy, start, end, ink, 0)
def ellipse(self, xy, fill=None, outline=None):
ink, fill = self._getink(outline, fill)
if fill is not None:
self.im.draw_ellipse(xy, fill, 1)
if ink is not None:
self.im.draw_ellipse(xy, ink, 0)
def line(self, xy, fill=None):
ink, fill = self._getink(fill)
if ink is not None:
self.im.draw_lines(xy, ink)
def shape(self, shape, fill=None, outline=None):
# experimental
shape.close()
ink, fill = self._getink(outline, fill)
if fill is not None:
self.im.draw_outline(shape, fill, 1)
if ink is not None:
self.im.draw_outline(shape, ink, 0)
def pieslice(self, xy, start, end, fill=None, outline=None):
ink, fill = self._getink(outline, fill)
if fill is not None:
self.im.draw_pieslice(xy, start, end, fill, 1)
if ink is not None:
self.im.draw_pieslice(xy, start, end, ink, 0)
def point(self, xy, fill=None):
ink, fill = self._getink(fill)
if ink is not None:
self.im.draw_points(xy, ink)
def polygon(self, xy, fill=None, outline=None):
ink, fill = self._getink(outline, fill)
if fill is not None:
self.im.draw_polygon(xy, fill, 1)
if ink is not None:
self.im.draw_polygon(xy, ink, 0)
def rectangle(self, xy, fill=None, outline=None):
ink, fill = self._getink(outline, fill)
if fill is not None:
self.im.draw_rectangle(xy, fill, 1)
if ink is not None:
self.im.draw_rectangle(xy, ink, 0)
def text(self, xy, text, fill=None, font=None, anchor=None):
ink, fill = self._getink(fill)
if font is None:
font = self.getfont()
if ink is None:
ink = fill
if ink is not None:
self.im.draw_bitmap(xy, font.getmask(text), ink)
# backwards compatibility
ImageDraw = Draw
# experimental access to the outline API
try:
Outline = Image.core.outline
except:
Outline = None