Open Inventor Reference
|
00001 /* 00002 * 00003 * Copyright (C) 2000 Silicon Graphics, Inc. All Rights Reserved. 00004 * 00005 * This library is free software; you can redistribute it and/or 00006 * modify it under the terms of the GNU Lesser General Public 00007 * License as published by the Free Software Foundation; either 00008 * version 2.1 of the License, or (at your option) any later version. 00009 * 00010 * This library is distributed in the hope that it will be useful, 00011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00013 * Lesser General Public License for more details. 00014 * 00015 * Further, this software is distributed without any warranty that it is 00016 * free of the rightful claim of any third person regarding infringement 00017 * or the like. Any license provided herein, whether implied or 00018 * otherwise, applies only to this software file. Patent licenses, if 00019 * any, provided herein do not apply to combinations of this program with 00020 * other software, or any other product whatsoever. 00021 * 00022 * You should have received a copy of the GNU Lesser General Public 00023 * License along with this library; if not, write to the Free Software 00024 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00025 * 00026 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, 00027 * Mountain View, CA 94043, or: 00028 * 00029 * http://www.sgi.com 00030 * 00031 * For further information regarding this notice, see: 00032 * 00033 * http://oss.sgi.com/projects/GenInfo/NoticeExplan/ 00034 * 00035 */ 00036 00037 00038 /* 00039 * Copyright (C) 1990,91 Silicon Graphics, Inc. 00040 * 00041 _______________________________________________________________________ 00042 ______________ S I L I C O N G R A P H I C S I N C . ____________ 00043 | 00044 | $Revision: 1.1.1.1 $ 00045 | 00046 | Description: 00047 | Defines the SoHandleEventAction class 00048 | 00049 | Author(s) : Paul S. Strauss 00050 | 00051 ______________ S I L I C O N G R A P H I C S I N C . ____________ 00052 _______________________________________________________________________ 00053 */ 00054 00055 #ifndef _SO_HANDLE_EVENT_ACTION_ 00056 #define _SO_HANDLE_EVENT_ACTION_ 00057 00058 #include <Inventor/system/SbSystem.h> 00059 #include <Inventor/SbViewportRegion.h> 00060 #include <Inventor/actions/SoSubAction.h> 00061 #include <Inventor/actions/SoRayPickAction.h> 00062 00063 class SoEvent; 00064 00065 00068 00092 00093 00094 class INVENTOR_API SoHandleEventAction : public SoAction { 00095 00096 SO_ACTION_HEADER(SoHandleEventAction); 00097 00098 public: 00099 00102 SoHandleEventAction(const SbViewportRegion &viewportRegion); 00103 00105 virtual ~SoHandleEventAction(); 00106 00108 void setViewportRegion(const SbViewportRegion &newRegion); 00109 00111 const SbViewportRegion &getViewportRegion() const { return vpRegion; } 00112 00114 void setEvent(const SoEvent *ev) { event = ev; } 00116 const SoEvent * getEvent() const { return event; } 00117 00119 void setHandled() { setTerminated(TRUE); } 00121 SbBool isHandled() const { return hasTerminated(); } 00122 00125 void setGrabber(SoNode *node); 00127 void releaseGrabber() { setGrabber(NULL); } 00129 SoNode * getGrabber() const { return eventGrabber; } 00130 00133 void setPickRoot(SoNode *node); 00136 SoNode * getPickRoot() const { return pickRoot; } 00137 00144 void setPickRadius(float radiusInPixels) 00145 { pickAct->setRadius(radiusInPixels); } 00146 00154 const SoPickedPoint *getPickedPoint(); 00155 00158 const SoPickedPointList &getPickedPointList(); 00159 00160 SoINTERNAL public: 00161 static void initClass(); 00162 00163 protected: 00165 virtual void beginTraversal(SoNode *node); 00166 00167 private: 00168 const SoEvent *event; 00169 SoNode *pickRoot; 00170 SoPickedPoint *pickedPoint; 00171 SbBool pickValid; 00172 SbBool usedPickAll; 00173 SoRayPickAction *pickAct; 00174 SoNode *eventGrabber; 00175 SbViewportRegion vpRegion; 00176 }; 00177 00178 #endif /* _SO_HANDLE_EVENT_ACTION_ */