sugar-toolkit-gtk3/lib/sugar/graphics/roundbox.py

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# Copyright (C) 2006-2007 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.
import math
import hippo
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from sugar.graphics import style
class CanvasRoundBox(hippo.CanvasBox, hippo.CanvasItem):
__gtype_name__ = 'SugarRoundBox'
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_BORDER_DEFAULT = style.LINE_WIDTH
def __init__(self, **kwargs):
hippo.CanvasBox.__init__(self, **kwargs)
# TODO: we should calculate this value depending on the height of the box.
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self._radius = style.zoom(10)
self.props.orientation = hippo.ORIENTATION_HORIZONTAL
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self.props.border = self._BORDER_DEFAULT
self.props.border_left = self._radius
self.props.border_right = self._radius
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self.props.border_color = style.COLOR_BLACK.get_int()
def do_paint_background(self, cr, damaged_box):
[width, height] = self.get_allocation()
x = self._BORDER_DEFAULT / 2
y = self._BORDER_DEFAULT / 2
width -= self._BORDER_DEFAULT
height -= self._BORDER_DEFAULT
cr.move_to(x + self._radius, y);
cr.arc(x + width - self._radius, y + self._radius,
self._radius, math.pi * 1.5, math.pi * 2);
cr.arc(x + width - self._radius, x + height - self._radius,
self._radius, 0, math.pi * 0.5);
cr.arc(x + self._radius, y + height - self._radius,
self._radius, math.pi * 0.5, math.pi);
cr.arc(x + self._radius, y + self._radius, self._radius,
math.pi, math.pi * 1.5);
hippo.cairo_set_source_rgba32(cr, self.props.background_color)
cr.fill_preserve();
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# TODO: we should be more consistent here with the border properties.
if self.props.border_color:
hippo.cairo_set_source_rgba32(cr, self.props.border_color)
cr.set_line_width(self.props.border_top)
cr.stroke()