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hom_point_drawer.cpp
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/***************************************************************************
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* hom_point_drawer.cpp - Drawer for the HomPoint class
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*
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* Created: Thu Oct 09 14:34:19 2008
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* Copyright 2008 Daniel Beck
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*
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****************************************************************************/
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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. A runtime exception applies to
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* this software (see LICENSE.GPL_WRE file mentioned below for details).
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*
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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 Library General Public License for more details.
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*
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* Read the full text in the LICENSE.GPL_WRE file in the doc directory.
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*/
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#include <geometry/gtk/hom_point_drawer.h>
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#include <geometry/hom_point.h>
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/** @class fawkes::HomPointDrawer <geometry/gtk/hom_point_drawer.h>
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* Drawer for HomPoint objects.
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* @author Daniel Beck
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*/
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/** @var fawkes::HomPointDrawer::m_point_size
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* The radius of the point.
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*/
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namespace
fawkes {
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/** Constructor.
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* @param p the HomPoint to draw
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*/
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HomPointDrawer::HomPointDrawer
(
const
HomPoint
& p)
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{
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m_hom_point =
new
HomPoint
(p);
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m_point_size
= 0.1;
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}
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/** Destructor. */
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HomPointDrawer::~HomPointDrawer
()
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{
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delete
m_hom_point;
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}
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/** Set the point size with which points a drawn by this drawer.
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* @param s the point size
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*/
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void
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HomPointDrawer::set_point_size
(
float
s)
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{
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m_point_size
= s;
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}
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void
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HomPointDrawer::draw
(Cairo::RefPtr<Cairo::Context>& context)
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{
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float
x = m_hom_point->
x
();
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float
y = m_hom_point->
y
();
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context->save();
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context->move_to(x, y);
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context->arc(x, y,
m_point_size
, 0.0, 2.0 * M_PI);
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context->fill();
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context->restore();
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context->stroke();
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}
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}
// end namespace fawkes
src
libs
geometry
gtk
hom_point_drawer.cpp
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