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# Miro - an RSS based video player application
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# Copyright (C) 2005-2010 Participatory Culture Foundation
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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# In addition, as a special exception, the copyright holders give
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# permission to link the code of portions of this program with the OpenSSL
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# You must obey the GNU General Public License in all respects for all of
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# the code used other than OpenSSL. If you modify file(s) with this
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# exception, you may extend this exception to your version of the file(s),
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# but you are not obligated to do so. If you do not wish to do so, delete
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# this exception statement from your version. If you delete this exception
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# statement from all source files in the program, then also delete it here.
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"""``miro.frontends.widgets.util`` -- Utility functions.
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def rounded_rectangle(context, x, y, width, height, xradius, yradius=None):
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"""Create a path using a rounded rectangle. xradius and yradius specifies
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how far away from the normal rectangle corner the rounded edge will start.
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yradius defaults to xradius.
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xradius = min(xradius, width/2.0)
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yradius = min(xradius, height/2.0)
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inner_width = width - xradius*2
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inner_height = height - yradius*2
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context.move_to(x+xradius, y)
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context.rel_line_to(inner_width, 0)
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# Our basic strategy for the corners is to make a curve with the
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# control points at the corner where a non-round rectangle would be
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context.rel_curve_to(xradius, 0, xradius, 0, xradius, yradius)
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context.rel_line_to(0, inner_height)
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context.rel_curve_to(0, yradius, 0, yradius, -xradius, yradius)
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context.rel_line_to(-inner_width, 0)
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context.rel_curve_to(-xradius, 0, -xradius, 0, -xradius, -yradius)
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context.rel_line_to(0, -inner_height)
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context.rel_curve_to(0, -yradius, 0, -yradius, xradius, -yradius)