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# render.h

    00001 //
    00002 // render.h
    00003 //
    00004 // Copyright (C) 1996 Limit Point Systems, Inc.
    00005 //
    00006 // Author: Curtis Janssen <cljanss@limitpt.com>
    00007 // Maintainer: LPS
    00008 //
    00009 // This file is part of the SC Toolkit.
    00010 //
    00011 // The SC Toolkit is free software; you can redistribute it and/or modify
    00012 // it under the terms of the GNU Library General Public License as published by
    00013 // the Free Software Foundation; either version 2, or (at your option)
    00014 // any later version.
    00015 //
    00016 // The SC Toolkit 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 // You should have received a copy of the GNU Library General Public License
    00022 // along with the SC Toolkit; see the file COPYING.LIB.  If not, write to
    00023 // the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
    00024 //
    00025 // The U.S. Government is granted a limited license as per AL 91-7.
    00026 //
    00027
    00028 #ifdef __GNUC__
    00029 #pragma interface
    00030 #endif
    00031
    00032 #ifndef _util_render_render_h
    00033 #define _util_render_render_h
    00034
    00035 #include <util/class/class.h>
    00036 #include <util/render/appearance.h>
    00037 #include <util/render/material.h>
    00038 #include <util/render/transform.h>
    00039 #include <util/render/stack.h>
    00040
    00041 namespace sc {
    00042
    00043 class RenderedObject;
    00044 class AnimatedObject;
    00045 class RenderedObjectSet;
    00046 class RenderedSphere;
    00047 class RenderedPolygons;
    00048 class RenderedPolylines;
    00049
    00050 class Render: public DescribedClass {
    00051   protected:
    00052     Ref<Material> default_material_;
    00053     Ref<Appearance> default_appearance_;
    00054     Ref<Transform> default_transform_;
    00055
    00056     Stack<Ref<Material> > material_stack_;
    00057     Stack<Ref<Appearance> > appearance_stack_;
    00058     Stack<Ref<Transform> > transform_stack_;
    00059
    00060     virtual void push_material(const Ref<Material>& m);
    00061     virtual void push_appearance(const Ref<Appearance>& a);
    00062     virtual void push_transform(const Ref<Transform>& t);
    00063     virtual Ref<Material> pop_material();
    00064     virtual Ref<Appearance> pop_appearance();
    00065     virtual Ref<Transform> pop_transform();
    00066
    00067   public:
    00068     Render();
    00069     Render(const Ref<KeyVal>&);
    00070     virtual ~Render();
    00071
    00072     Ref<Material> default_material() { return default_material_; }
    00073     Ref<Appearance> default_appearance() { return default_appearance_; }
    00074     Ref<Transform> default_transform() { return default_transform_; }
    00075     void default_material(const Ref<Material>& m) { default_material_ = m; }
    00076     void default_appearance(const Ref<Appearance>& a) {default_appearance_ = a;}
    00077     void default_transform(const Ref<Transform>& t) {default_transform_ = t;}
    00078
    00079     virtual void clear() = 0;
    00080
    00081     virtual void render(const Ref<RenderedObject>&);
    00082     virtual void animate(const Ref<AnimatedObject> &);
    00083
    00084     virtual void set(const Ref<RenderedObjectSet>&);
    00085     virtual void sphere(const Ref<RenderedSphere>&);
    00086     virtual void polygons(const Ref<RenderedPolygons>&) = 0;
    00087     virtual void polylines(const Ref<RenderedPolylines>&) = 0;
    00088 };
    00089
    00090
    00091 class FileRender: public Render {
    00092   protected:
    00093     char* filename_;
    00094     char* basename_;
    00095     std::streambuf *sbuf_;
    00096     int delete_sbuf_;
    00097     int depth_;
    00098
    00099     char *get_filename(const char *objectname);
    00100     void open_sbuf(const char *objectname);
    00101     void close_sbuf();
    00102   public:
    00103     FileRender(const char * filename);
    00104     FileRender(std::ostream &o = ExEnv::out0());
    00105     FileRender(const Ref<KeyVal>&);
    00106     virtual ~FileRender();
    00107
    00108     void clear();
    00109
    00110     virtual void set_filename(const char *name);
    00111     virtual void set_basename(const char *name);
    00112     virtual const char *file_extension();
    00113 };
    00114
    00115 }
    00116
    00117 #endif
    00118
    00119 // Local Variables:
    00120 // mode: c++
    00121 // c-file-style: "CLJ"
    00122 // End: