1 #ifndef COIN_SOCACHEHINTELEMENT_H
2 #define COIN_SOCACHEHINTELEMENT_H
3 
4 /**************************************************************************\
5  * Copyright (c) Kongsberg Oil & Gas Technologies AS
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13  * this list of conditions and the following disclaimer.
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15  * Redistributions in binary form must reproduce the above copyright
16  * notice, this list of conditions and the following disclaimer in the
17  * documentation and/or other materials provided with the distribution.
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20  * contributors may be used to endorse or promote products derived from
21  * this software without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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34 \**************************************************************************/
35 
36 #include <Inventor/elements/SoSubElement.h>
37 
38 class SoCacheHintElementP;
39 
40 // Please note that this is an experimental class. The API might
41 // change a lot before/if it's included in any official Coin
42 // release. pederb, 2004-07-02
43 class COIN_DLL_API SoCacheHintElement : public SoElement {
44   typedef SoElement inherited;
45 
46   SO_ELEMENT_HEADER(SoCacheHintElement);
47 public:
48   static void initClass(void);
49 protected:
50   virtual ~SoCacheHintElement();
51 
52 public:
53 
54   virtual void init(SoState * state);
55   virtual void push(SoState * state);
56   virtual void pop(SoState * state, const SoElement * prevtopelement);
57 
58   virtual SbBool matches(const SoElement * element) const;
59   virtual SoElement * copyMatchInfo(void) const;
60 
61   static void set(SoState * state, SoNode * node,
62                   const float memvalue,
63                   const float gfxvalue);
64   static void get(SoState * state, float & memvalue, float & gfxvalue);
65 
66 protected:
67 
68   SoCacheHintElementP * pimpl;
69 };
70 
71 #endif // !COIN_SOCACHEHINTELEMENT_H
72