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SoImage.h

00001 #ifndef COIN_SOIMAGE_H
00002 #define COIN_SOIMAGE_H
00003 
00004 /**************************************************************************\
00005  *
00006  *  This file is part of the Coin 3D visualization library.
00007  *  Copyright (C) 1998-2007 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 http://www.coin3d.org/ for more information.
00021  *
00022  *  Systems in Motion, Postboks 1283, Pirsenteret, 7462 Trondheim, NORWAY.
00023  *  http://www.sim.no/  sales@sim.no  coin-support@coin3d.org
00024  *
00025 \**************************************************************************/
00026 
00027 #include <Inventor/nodes/SoSubNode.h>
00028 #include <Inventor/nodes/SoShape.h>
00029 #include <Inventor/fields/SoSFInt32.h>
00030 #include <Inventor/fields/SoSFEnum.h>
00031 #include <Inventor/fields/SoSFImage.h>
00032 #include <Inventor/fields/SoSFString.h>
00033 
00034 class SoSensor;
00035 class SoFieldSensor;
00036 class SbImage;
00037 
00038 class COIN_DLL_API SoImage : public SoShape {
00039   typedef SoShape inherited;
00040 
00041   SO_NODE_HEADER(SoImage);
00042 
00043 public:
00044   static void initClass(void);
00045   SoImage(void);
00046 
00047   enum VertAlignment {
00048     BOTTOM,
00049     HALF,
00050     TOP
00051   };
00052 
00053   enum HorAlignment {
00054     LEFT,
00055     CENTER,
00056     RIGHT
00057   };
00058 
00059   SoSFInt32 width;
00060   SoSFInt32 height;
00061   SoSFEnum vertAlignment;
00062   SoSFEnum horAlignment;
00063   SoSFImage image;
00064   SoSFString filename;
00065 
00066   virtual void GLRender(SoGLRenderAction * action);
00067   virtual void rayPick(SoRayPickAction * action);
00068   virtual void getPrimitiveCount(SoGetPrimitiveCountAction * action);
00069 
00070 protected:
00071   virtual ~SoImage();
00072 
00073   virtual void generatePrimitives(SoAction * action);
00074   virtual void computeBBox(SoAction * action, SbBox3f & box, SbVec3f & center);
00075 
00076   virtual SbBool readInstance(SoInput * in, unsigned short flags);
00077   virtual void notify(SoNotList * list);
00078   int getReadStatus(void);
00079   void setReadStatus(SbBool flag);
00080 
00081 private:
00082   SbVec2s getSize(void) const;
00083   static SbVec3f getNilpoint(SoState *state);
00084   void getQuad(SoState *state, SbVec3f &v0, SbVec3f &v1,
00085                SbVec3f &v2, SbVec3f &v3);
00086 
00087   const unsigned char * getImage(SbVec2s & size, int & nc);
00088   SbBool loadFilename(void);
00089   SbBool readstatus;
00090   SbImage * resizedimage;
00091   SbBool resizedimagevalid;
00092   class SoFieldSensor * filenamesensor;
00093   SbBool transparency;
00094   SbBool testtransparency;
00095   void testTransparency(void);
00096   static void filenameSensorCB(void *, SoSensor *);
00097 };
00098 
00099 #endif // !COIN_SOIMAGE_H

Copyright © 1998-2007 by Systems in Motion AS. All rights reserved.

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