SoQtViewerSrc/SoRenderArea.h

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00001 // ***************************************************************************
00002 //  This program is free software; you can redistribute it and/or modify
00003 //  it under the terms of the GNU General Public License as published by
00004 //  the Free Software Foundation; either version 2 of the License, or
00005 //  (at your option) any later version.
00006 //
00007 //    This program is distributed in the hope that it will be useful,
00008 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
00009 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00010 //  GNU General Public License for more details.
00011 //
00012 //  You should have received a copy of the GNU General Public License
00013 //  along with this program; if not, write to the Free Software
00014 //  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
00015 //
00016 //           (C) Copyright 2000-2002 Morgan Leborgne
00017 //
00018 //    Contact: http://morgan.leborgne.free.fr
00019 //             mailto: morgan.leborgne@free.fr
00020 // ***************************************************************************
00021 #ifndef _SORENDERAREA_H_
00022 #define _SORENDERAREA_H_
00023 
00024 class SoTempPath;
00025 #include <Inventor/nodes/SoNode.h>
00026 #include <Inventor/SoSceneManager.h> 
00027 #include <Inventor/actions/SoGLRenderAction.h>
00028 #include <Inventor/events/SoMouseButtonEvent.h>
00029 #include <Inventor/events/SoKeyboardEvent.h>
00030 #include <Inventor/events/SoLocation2Event.h> 
00031 
00032 //The SoWheelEvent class contains parameters that describe a mouse wheel event.
00033 class SoWheelEvent : public SoEvent
00034 {
00035         SO_EVENT_HEADER();
00036 public:
00037         SoWheelEvent(){}
00038 
00039         void setDelta(int delta){ m_delta = delta; }
00040         int getDelta() const{ return m_delta; }
00041 private:
00042         int m_delta;
00043 };
00044 
00045 class SoRenderArea
00046 {
00047 public:
00048         SoRenderArea();
00049         virtual ~SoRenderArea();
00050 
00052         void setTransparencyType(SoGLRenderAction::TransparencyType a_type);
00053 
00055         virtual void setSceneGraph(SoNode * a_new_scene);
00056 
00058         virtual SoNode * getSceneGraph(){ return m_p_scene_manager->getSceneGraph();}
00059 
00061         virtual void setBackgroundColor(const SbColor & a_color){ m_p_scene_manager->setBackgroundColor(a_color); }
00062 
00064         const SbColor & getBackgroundColor() const { return m_p_scene_manager->getBackgroundColor(); }
00065 
00067         SoSceneManager * getSceneManager(){ return m_p_scene_manager; }
00068 
00070         void setViewportRegion(const SbViewportRegion & a_region) { m_p_scene_manager->getGLRenderAction()->setViewportRegion(a_region); }
00071 
00073         const SbViewportRegion & getViewportRegion() const { return m_p_scene_manager->getGLRenderAction()->getViewportRegion(); }
00074 
00075 protected:
00076         virtual void soKeyPressEvent( SoKeyboardEvent * e);
00077         virtual void soKeyReleaseEvent( SoKeyboardEvent * e );
00078         virtual void soMouseMoveEvent( SoLocation2Event * e );
00079         virtual void soMousePressEvent( SoMouseButtonEvent * e );
00080         virtual void soMouseReleaseEvent( SoMouseButtonEvent * e );
00081         virtual void soWheelEvent( SoWheelEvent * e );
00082         virtual void soRenderCallback() = 0; 
00083         virtual void soResizeEvent(int width, int height);
00084         virtual void soPaintEvent();
00085 
00086         SoSceneManager     * m_p_scene_manager;
00087         SoKeyboardEvent    * m_keyboard_event;
00088         SoMouseButtonEvent * m_mouse_button_event;
00089         SoLocation2Event   * m_location_event;
00090         SoWheelEvent       * m_wheel_event;
00091 
00092         static void renderCallback(void *userData, SoSceneManager *mgr);
00093 };
00094 
00095 #endif // _SORENDERAREA_H_

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