Panda3D
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lineSegs.h
00001 // Filename: lineSegs.h
00002 // Created by:  drose (16Mar02)
00003 //
00004 ////////////////////////////////////////////////////////////////////
00005 //
00006 // PANDA 3D SOFTWARE
00007 // Copyright (c) Carnegie Mellon University.  All rights reserved.
00008 //
00009 // All use of this software is subject to the terms of the revised BSD
00010 // license.  You should have received a copy of this license along
00011 // with this source code in a file named "LICENSE."
00012 //
00013 ////////////////////////////////////////////////////////////////////
00014 
00015 #ifndef LINESEGS_H
00016 #define LINESEGS_H
00017 
00018 #include "pandabase.h"
00019 
00020 #include "luse.h"
00021 #include "geom.h"
00022 #include "geomNode.h"
00023 #include "geomVertexData.h"
00024 #include "namable.h"
00025 
00026 #include "pvector.h"
00027 
00028 ////////////////////////////////////////////////////////////////////
00029 //       Class : LineSegs
00030 // Description : Encapsulates creation of a series of connected or
00031 //               disconnected line segments or points, for drawing
00032 //               paths or rays.  This class doesn't attempt to be the
00033 //               smartest it could possibly be; it's intended
00034 //               primarily as a visualization and editing tool.
00035 ////////////////////////////////////////////////////////////////////
00036 class EXPCL_PANDA_GRUTIL LineSegs : public Namable {
00037 PUBLISHED:
00038   LineSegs(const string &name = "lines");
00039   ~LineSegs();
00040 
00041   void reset();
00042   INLINE void set_color(PN_stdfloat r, PN_stdfloat g, PN_stdfloat b, PN_stdfloat a = 1.0f);
00043   INLINE void set_color(const LColor &color);
00044   INLINE void set_thickness(PN_stdfloat thick);
00045 
00046   INLINE void move_to(PN_stdfloat x, PN_stdfloat y, PN_stdfloat z);
00047   void move_to(const LVecBase3 &v);
00048 
00049   INLINE void draw_to(PN_stdfloat x, PN_stdfloat y, PN_stdfloat z);
00050   void draw_to(const LVecBase3 &v);
00051 
00052   const LVertex &get_current_position();
00053   bool is_empty();
00054 
00055   INLINE GeomNode *create(bool dynamic = false);
00056   GeomNode *create(GeomNode *previous, bool dynamic = false);
00057 
00058   // Functions to move the line vertices after they have been created.
00059   INLINE int get_num_vertices() const;
00060   LVertex get_vertex(int n) const;
00061   MAKE_SEQ(get_vertices, get_num_vertices, get_vertex);
00062   void set_vertex(int n, const LVertex &vert);
00063   INLINE void set_vertex(int vertex, PN_stdfloat x, PN_stdfloat y, PN_stdfloat z);
00064 
00065   LColor get_vertex_color(int vertex) const;
00066   MAKE_SEQ(get_vertex_colors, get_num_vertices, get_vertex_color);
00067   void set_vertex_color(int vertex, const LColor &c);
00068   INLINE void set_vertex_color(int vertex, PN_stdfloat r, PN_stdfloat g, PN_stdfloat b, PN_stdfloat a = 1.0f);
00069 
00070 private:
00071   class Point {
00072   public:
00073     INLINE Point();
00074     INLINE Point(const LVecBase3 &point, const LColor &color);
00075     INLINE Point(const Point &copy);
00076     INLINE void operator = (const Point &copy);
00077 
00078     LVertex _point;
00079     UnalignedLVecBase4 _color;
00080   };
00081 
00082   typedef pvector<Point> SegmentList;
00083   typedef pvector<SegmentList> LineList;
00084 
00085   LineList _list;
00086   LColor _color;
00087   PN_stdfloat _thick;
00088 
00089   PT(GeomVertexData) _created_data;
00090 };
00091 
00092 #include "lineSegs.I"
00093 
00094 #endif
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