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# SoOffscreenRenderer.h

    00001 #ifndef COIN_SOOFFSCREENRENDERER_H
    00002 #define COIN_SOOFFSCREENRENDERER_H
    00003
    00004 /**************************************************************************\
    00005  *
    00006  *  This file is part of the Coin 3D visualization library.
    00007  *  Copyright (C) 1998-2003 by Systems in Motion.  All rights reserved.
    00008  *
    00009  *  This library is free software; you can redistribute it and/or
    00010  *  modify it under the terms of the GNU General Public License
    00011  *  ("GPL") version 2 as published by the Free Software Foundation.
    00012  *  See the file LICENSE.GPL at the root directory of this source
    00013  *  distribution for additional information about the GNU GPL.
    00014  *
    00015  *  For using Coin with software that can not be combined with the GNU
    00016  *  GPL, and for taking advantage of the additional benefits of our
    00017  *  support services, please contact Systems in Motion about acquiring
    00018  *  a Coin Professional Edition License.
    00019  *
    00020  *  See <URL:http://www.coin3d.org> for  more information.
    00021  *
    00022  *  Systems in Motion, Teknobyen, Abels Gate 5, 7030 Trondheim, NORWAY.
    00023  *  <URL:http://www.sim.no>.
    00024  *
    00025 \**************************************************************************/
    00026
    00027 #include <Inventor/SbViewportRegion.h>
    00028 #include <Inventor/SbColor.h>
    00029 #include <Inventor/lists/SbList.h>
    00030 #include <Inventor/SbString.h>
    00031 #include <Inventor/SbName.h>
    00032
    00033 #include <stdio.h>
    00034
    00035 class SoBase;
    00036 class SoGLRenderAction;
    00037 class SoNode;
    00038 class SoPath;
    00039
    00040 // This shouldn't strictly be necessary, but the OSF1/cxx compiler
    00041 // complains if this is left out, while using the "friend class
    00042 // SoExtSelectionP" statement in the class definition.
    00043 class SoOffscreenRendererP;
    00044
    00045
    00046 class COIN_DLL_API SoOffscreenRenderer {
    00047 public:
    00048   enum Components {
    00049     LUMINANCE = 1,
    00050     LUMINANCE_TRANSPARENCY = 2,
    00051     RGB = 3,
    00052     RGB_TRANSPARENCY = 4
    00053   };
    00054
    00055   SoOffscreenRenderer(const SbViewportRegion & viewportregion);
    00056   SoOffscreenRenderer(SoGLRenderAction * action);
    00057   ~SoOffscreenRenderer();
    00058
    00059   static float getScreenPixelsPerInch(void);
    00060   static SbVec2s getMaximumResolution(void);
    00061   void setComponents(const Components components);
    00062   Components getComponents(void) const;
    00063   void setViewportRegion(const SbViewportRegion & region);
    00064   const SbViewportRegion & getViewportRegion(void) const;
    00065   void setBackgroundColor(const SbColor & color);
    00066   const SbColor & getBackgroundColor(void) const;
    00067   void setGLRenderAction(SoGLRenderAction * action);
    00068   SoGLRenderAction * getGLRenderAction(void) const;
    00069   SbBool render(SoNode * scene);
    00070   SbBool render(SoPath * scene);
    00071   unsigned char * getBuffer(void) const;
    00072
    00073   SbBool writeToRGB(FILE * fp) const;
    00074   SbBool writeToPostScript(FILE * fp) const;
    00075   SbBool writeToPostScript(FILE * fp, const SbVec2f & printsize) const;
    00076
    00077   SbBool writeToRGB(const char * filename) const;
    00078   SbBool writeToPostScript(const char * filename) const;
    00079   SbBool writeToPostScript(const char * filename, const SbVec2f & printsize) const;
    00080
    00081   SbBool isWriteSupported(const SbName & filetypeextension) const;
    00082   int getNumWriteFiletypes(void) const;
    00083   void getWriteFiletypeInfo(const int idx,
    00084                             SbList <SbName> & extlist,
    00085                             SbString & fullname,
    00086                             SbString & description);
    00087   SbBool writeToFile(const SbString & filename, const SbName & filetypeextension) const;
    00088
    00089 private:
    00090   friend class SoOffscreenRendererP;
    00091   class SoOffscreenRendererP * pimpl;
    00092 };
    00093
    00094 #endif // !COIN_SOOFFSCREENRENDERER_H