papyrus logo

polyline.h

Go to the documentation of this file.
00001 /***************************************************************************
00002  *   Copyright (C) 2004 by Rick L. Vinyard, Jr.                            *
00003  *   rvinyard@cs.nmsu.edu                                                  *
00004  *                                                                         *
00005  *   This file is part of the papyrus library.                             *
00006  *                                                                         *
00007  *   papyrus is free software; you can redistribute it and/or modify       *
00008  *   it under the terms of the GNU Lesser General Public License           *
00009  *   version 3.0 as published by the Free Software Foundation.             *
00010  *                                                                         *
00011  *   papyrus is distributed in the hope that it will be useful,            *
00012  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
00013  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
00014  *   GNU Lesser General Public License version 3.0 for more details.       *
00015  *                                                                         *
00016  *   You should have received a copy of the GNU Lesser General Public      *
00017  *   License along with the papyrus library. If not, see                   *
00018  *   <http://www.gnu.org/licenses/>.                                       *
00019  ***************************************************************************/
00020 #ifndef PAPYRUSPOLYLINE_H
00021 #define PAPYRUSPOLYLINE_H
00022 
00023 #include <vector>
00024 
00025 #include <papyrus/shape.h>
00026 #include <papyrus/marker.h>
00027 
00056 namespace Papyrus
00057 {
00058 
00059   class Vertex
00060   {
00061     public:
00062       Vertex ( double vx=0.0, double vy=0.0, bool vrelative=false ) :
00063           x ( vx ), y ( vy ), relative ( vrelative )
00064       {}
00065 
00066       virtual ~Vertex() { }
00067 
00068       double x, y;
00069       bool relative;
00070   };
00071 
00072   typedef std::vector<Vertex> Vertices;
00073 
00086   class Polyline : public Shape
00087   {
00088     protected:
00089 
00090       Polyline ( const Glib::ustring& id, const Vertices& vertices, Fill::pointer fill, Stroke::pointer stroke );
00091 
00092     public:
00093       typedef PapyrusPointer<Polyline> pointer;
00094 
00096       static pointer create ( const Vertices& vertices = Vertices(), Stroke::pointer stroke = Stroke::pointer() );
00097 
00098       static pointer create ( const Vertices& vertices, Fill::pointer fill, Stroke::pointer stroke = Stroke::pointer() );
00099 
00100       static pointer create ( const Glib::ustring& id, Vertices vertices = Vertices(), Stroke::pointer stroke = Stroke::pointer() );
00101 
00102       static pointer create ( const Glib::ustring& id, Vertices vertices, Fill::pointer fill, Stroke::pointer stroke = Stroke::pointer() );
00103 
00104       virtual ~Polyline();
00105 
00106       Polyline& operator= ( const Polyline& other );
00107 
00108       Vertex vertex ( unsigned n ) const;
00109 
00110       const Vertices& vertices() const;
00111 
00112       void add_vertex ( Vertex v );
00113 
00114       void add_vertex ( double x, double y );
00115 
00116       void set_vertex ( unsigned n, Vertex v );
00117 
00118       void set_vertex ( unsigned n, double x, double y );
00119 
00120       void set_vertices ( const Vertices& vertices );
00121 
00122       virtual Marker::pointer marker(MarkerPosition position);
00123 
00129       virtual bool set_marker ( MarkerPosition position, Marker::pointer marker );
00130 
00131       virtual void draw ( Cairo::RefPtr<Cairo::Context> cairo ) const;
00132 
00134       virtual void draw_shape ( Cairo::RefPtr<Cairo::Context> cairo ) const;
00135 
00136       sigc::signal<void, unsigned> signal_vertex();
00137       sigc::signal<void> signal_vertices();
00138 
00139       PAPYRUS_CLASS_NAME ( "Polyline" );
00140 
00141       PAPYRUS_CLONE_METHOD ( Polyline );
00142 
00143     protected:
00144       Vertices m_vertices;
00145       Marker::pointer m_markers[3];
00146 
00147       sigc::signal<void, unsigned> m_signal_vertex;
00148       sigc::signal<void> m_signal_vertices;
00149 
00150       virtual void on_vertex_changed ( int n );
00151 
00152       virtual void on_vertices_changed();
00153 
00154       void update_marker_position( MarkerPosition n );
00155 
00160       virtual Region calculate_pre_viewbox_extents(const Matrix& m = Matrix::Identity) const;
00161 
00162       mutable sigc::connection m_marker_changed_connections[3];
00163       
00164       void on_marker_changed(MarkerPosition which);
00165 
00166   };
00167 
00168 }
00169 
00170 #endif

Generated on Wed Mar 18 12:34:04 2009 for papyrus by doxygen 1.5.7.1