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00001 #ifndef COIN_SOSTATE_H 00002 #define COIN_SOSTATE_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/SbBasic.h> 00028 #include <stdio.h> 00029 #include <assert.h> 00030 00031 class SoAction; 00032 class SoTypeList; 00033 class SoElement; 00034 00035 class COIN_DLL_API SoState { 00036 public: 00037 SoState(SoAction * action, 00038 const SoTypeList & enabledelements); 00039 ~SoState(void); 00040 00041 SoAction * getAction(void) const; 00042 00043 SoElement * getElement(const int stackindex); 00044 const SoElement * getConstElement(const int stackindex) const; 00045 00046 void push(void); 00047 void pop(void); 00048 00049 void print(FILE * const file = stdout) const; 00050 00051 SbBool isElementEnabled(const int stackindex) const; 00052 00053 int getDepth(void) const; 00054 00055 void setCacheOpen(const SbBool flag); 00056 SbBool isCacheOpen(void) const; 00057 00058 SoElement * getElementNoPush(const int stackindex) const; 00059 00060 private: 00061 SoElement ** stack; 00062 int numstacks; 00063 SbBool cacheopen; 00064 class SoStateP * pimpl; 00065 }; 00066 00067 // these methods are used very often, and is therefore inlined 00068 00069 inline SbBool 00070 SoState::isElementEnabled(const int stackindex) const 00071 { 00072 return (stackindex < this->numstacks) && (this->stack[stackindex] != NULL); 00073 } 00074 00075 inline const SoElement * 00076 SoState::getConstElement(const int stackindex) const 00077 { 00078 assert(this->isElementEnabled(stackindex)); 00079 return this->stack[stackindex]; 00080 } 00081 00082 inline SbBool 00083 SoState::isCacheOpen(void) const 00084 { 00085 return this->cacheopen; 00086 } 00087 00088 inline SoElement * 00089 SoState::getElementNoPush(const int stackindex) const 00090 { 00091 assert(this->isElementEnabled(stackindex)); 00092 return this->stack[stackindex]; 00093 } 00094 00095 00096 #endif // !COIN_SOSTATE_H
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