Fawkes API Fawkes Development Version
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00001 00002 /*************************************************************************** 00003 * spline_drawer.cpp - Drawer for the Spline class 00004 * 00005 * Created: Fri Oct 10 14:00:22 2008 00006 * Copyright 2008 Daniel Beck 00007 * 00008 ****************************************************************************/ 00009 00010 /* This program is free software; you can redistribute it and/or modify 00011 * it under the terms of the GNU General Public License as published by 00012 * the Free Software Foundation; either version 2 of the License, or 00013 * (at your option) any later version. A runtime exception applies to 00014 * this software (see LICENSE.GPL_WRE file mentioned below for details). 00015 * 00016 * This program is distributed in the hope that it will be useful, 00017 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00018 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00019 * GNU Library General Public License for more details. 00020 * 00021 * Read the full text in the LICENSE.GPL_WRE file in the doc directory. 00022 */ 00023 00024 #include <geometry/gtk/spline_drawer.h> 00025 #include <geometry/gtk/bezier_drawer.h> 00026 #include <geometry/spline.h> 00027 00028 /** @class fawkes::SplineDrawer <geometry/gtk/spline_drawer.h> 00029 * Drawer for Spline objects. 00030 * @author Daniel Beck 00031 */ 00032 00033 using namespace std; 00034 00035 namespace fawkes { 00036 00037 /** Constructor. 00038 * This constructor does not copy the Spline object but keeps a 00039 * pointer to the specified Spline object. Consequently, you have to 00040 * make sure that the object is not deleted before it is drawn. If you 00041 * cannot ensure this use the constructor that is given a const 00042 * reference to the object to draw. 00043 * @param s the Spline to draw 00044 */ 00045 SplineDrawer::SplineDrawer(Spline& s) 00046 { 00047 m_spline = &s; 00048 m_own_spline = false; 00049 } 00050 00051 /** Constructor. 00052 * Contrary to the other constructor, this constructor create a local 00053 * copy of the object to draw. 00054 * @param s the Spline to draw 00055 */ 00056 SplineDrawer::SplineDrawer(const Spline& s) 00057 { 00058 m_spline = new Spline(s); 00059 m_own_spline = true; 00060 } 00061 00062 /** Destructor. */ 00063 SplineDrawer::~SplineDrawer() 00064 { 00065 if (m_own_spline) 00066 { delete m_spline; } 00067 } 00068 00069 void 00070 SplineDrawer::draw(Cairo::RefPtr<Cairo::Context>& context) 00071 { 00072 for ( vector<Bezier>::iterator iter = m_spline->m_bezier_curves.begin(); 00073 iter != m_spline->m_bezier_curves.end(); 00074 ++iter ) 00075 { 00076 BezierDrawer d( *iter ); 00077 d.draw(context); 00078 } 00079 } 00080 00081 } // end namespace fawkes