sugar-toolkit-gtk3/sugar/chat/sketchpad/Sketch.py

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# Copyright (C) 2006, Red Hat, Inc.
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
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from SVGdraw import path
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class Sketch:
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def __init__(self, rgb):
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self._points = []
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self._rgb = (float(rgb[0]), float(rgb[1]), float(rgb[2]))
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def add_point(self, x, y):
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self._points.append((x, y))
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def draw(self, ctx):
start = True
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for (x, y) in self._points:
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if start:
ctx.move_to(x, y)
start = False
else:
ctx.line_to(x, y)
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ctx.set_source_rgb(self._rgb[0], self._rgb[1], self._rgb[2])
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ctx.stroke()
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def draw_to_svg(self):
i = 0
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for (x, y) in self._points:
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coords = str(x) + ' ' + str(y) + ' '
if i == 0:
path_data = 'M ' + coords
elif i == 1:
path_data += 'L ' + coords
else:
path_data += coords
i += 1
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color = "#%02X%02X%02X" % (255 * self._rgb[0], 255 * self._rgb[1], 255 * self._rgb[2])
return path(path_data, fill = 'none', stroke = color)