104 lines
4.5 KiB
C++
104 lines
4.5 KiB
C++
/***************************************************************************
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* Copyright (c) 2005 Werner Mayer <wmayer[at]users.sourceforge.net> *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#ifndef GUI_SOFCOFFSCREENRENDERER_H
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#define GUI_SOFCOFFSCREENRENDERER_H
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#include <Inventor/SoOffscreenRenderer.h>
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#include <Inventor/SbMatrix.h>
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#include <QStringList>
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class QImage;
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namespace Gui {
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/**
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* The SoFCOffscreenRenderer class is used for rendering scenes in offscreen buffers.
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* @author Werner Mayer
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*/
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class GuiExport SoFCOffscreenRenderer : public SoOffscreenRenderer
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{
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public:
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/** The SoOffscreenRenderer base class seems to have a huge memory leak. Whenever
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* an instance is created internal memory doesn't get freed when destroying it.
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* Thus, SoFCOffscreenRenderer is implemented as singleton to allow to create only
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* one global instance. So, the memory is leaking for this instance only.
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*/
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static SoFCOffscreenRenderer& instance();
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private:
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SoFCOffscreenRenderer(const SoFCOffscreenRenderer&);
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SoFCOffscreenRenderer& operator=(const SoFCOffscreenRenderer&);
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static SoFCOffscreenRenderer* inst;
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protected:
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/**
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* Constructor. Argument is the \a viewportregion we should use when rendering. An internal
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* SoGLRenderAction will be constructed.
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*/
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SoFCOffscreenRenderer (const SbViewportRegion &viewportregion);
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/**
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* Constructor. Argument is the \a action we should apply to the scene graph when rendering the
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* scene. Information about the viewport is extracted from the \a action.
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*/
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SoFCOffscreenRenderer (SoGLRenderAction *action);
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/**
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* Destructor.
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*/
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~SoFCOffscreenRenderer();
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public:
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/**
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* Writes the rendered image buffer directly into a QImage object
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* instead of an image file.
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*/
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void writeToImage (QImage&) const;
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/**
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* Saves the buffer to \a filename, in the filetype specified by \a filetypeextensions.
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*
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* Note that you must still specify the full filename for the first argument, i.e. the second argument will
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* not automatically be attached to the filename -- it is only used to decide the filetype.
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*
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* If \a comment is set to '$MIBA' information regarding the MIBA standard is
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* embedded to the picture, otherwise the \a comment is embedded as is.
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* The appropriate file format must support embedding meta information which
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* is provided by JPEG or PNG.
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*
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* This does basically the same as writeToFile() unless that all QImage file formats are supported if not
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* directly supported by Coin3D.
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*/
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void writeToImageFile(const char* filename, const char* comment, const SbMatrix& mat, const QImage& img);
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/**
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* This method returns all image file formats supported by Coin3D (see getWriteFiletypeInfo()) with all QImage file formats that are
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* not directly supported by Coin3D, if so.
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*/
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QStringList getWriteImageFiletypeInfo();
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std::string createMIBA(const SbMatrix& mat) const;
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};
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} // namespace Gui
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#endif // GUI_SOFCOFFSCREENRENDERER_H
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