VRS - The Virtual Rendering System

version 3.3

selector.h

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 /**********************************************************************
 VRS - The Virtual Rendering System
 Copyright (C) 2001 Computer Graphics Systems Group at the 
 Hasso-Plattner-Institute, Potsdam, Germany.
 This library is free software; you can redistribute it and/or 
 modify it under the terms of the GNU Lesser General Public 
 License as published by the Free Software Foundation; either 
 version 2.1 of the License, or (at your option) any later version.
 This library is distributed in the hope that it will be useful, but 
 WITHOUT ANY WARRANTY; without even the implied warranty of 
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
 See the GNU Lesser General Public License for more details.
 You should have received a copy of the GNU Lesser+ General Public
 License along with this library; if not, write to the FreeSoftware 
 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA, 02111-1307, USA.
 **********************************************************************/
// $Id: selector.h 6014 2007-08-09 07:51:16Z Konstantin_Baumann $
// $Date: 2007-08-09 09:51:16 +0200 (Thu, 09 Aug 2007) $
// $Revision: 6014 $
// $State$
// $Author: Konstantin_Baumann $
//
// $Log$
// Revision 1.15  2005/01/03 01:43:10  klimetschek
// - modified win32 project layout, splitted vrs.vcproj into vrs_container, vrs_core, vrs_sg, vrs_image, vrs_opengl and vrs_io
// - removed vrs.vcproj
// minor things:
// - added all glutexamples to vrs4glut.sln
// - fixed some problems in glutexamples
// - removed all project references from all VS projects (using solution wide project dependencies instead)
//
// Revision 1.14  2004/10/28 14:16:01  basch
// Class comment changed (Doxygen style)
//
// Revision 1.13  2004/03/12 16:28:41  baumann
// macros VRS_NAMESPACE_BEGIN/_END expanded and removed
//
// Revision 1.12  2003/11/07 14:19:26  kirsch
// removed leading underscore from include guards
//
// Revision 1.11  2003/02/24 12:24:41  brumme
// Added missing casts
//
// Revision 1.10  2003/02/24 10:05:57  baumann
// changed return type of BehaviorNode::handle() and Manipulator::drag*()
// from "int" to "BehaviorNode::InvalidationHint"
//
// Revision 1.9  2002/10/29 10:32:53  baumann
// macros VRS_CLASSNAME_* and VRS_IMPL_TYPEINFO_* removed
//
// Revision 1.8  2002/03/03 21:44:26  kosta
// VRS_TYPEINFO-macro rewritten
//
// Revision 1.7  2002/02/19 10:34:20  kosta
// undone all changes since 2002-02-15
//
// Revision 1.4  2002/01/15 16:25:55  kosta
// macros rewritten for a better namespace support
//
// Revision 1.3  2001/11/13 16:36:31  kirsch
// changed line feed to unix style (removed control-M)
//
// Revision 1.2  2001/07/04 13:44:00  kersting
// changes due to InputEvent enumeration changes
//
// Revision 1.1.1.1  2001/06/08 08:09:21  kirsch
// imported alpha-version by olli 
//


#ifndef VRS_SELECTOR_H
#define VRS_SELECTOR_H

#include <vrs/sg/manipulator.h>
#include <vrs/sg/inputevent.h>
#include <vrs/sg/canvas.h>
#include <vrs/callback.h>
#include <vrs/rayrequest.h>
#include <vrs/engine.h>

namespace VRS {

class VRS_CORE_API Selector : public Manipulator {
    
public:
    Selector(
        InputEvent::Button button,
        InputEvent::Modifier must_modifier=InputEvent::NoModifier,
        InputEvent::Modifier must_not_modifier=InputEvent::NoModifier,
        
        RayRequest* startRequest = (RayRequest*)0,
        RayRequest* motionRequest = (RayRequest*)0,
        RayRequest* endRequest = (RayRequest*)0,
        
        Callback* startCallback = (Callback*)0,
        Callback* motionCallback = (Callback*)0,
        Callback* endCallback = (Callback*)0
        );
    void setStartRequest(RayRequest* rayreq);
    RayRequest* getStartRequest() const;
    
    void setMotionRequest(RayRequest* rayreq);
    RayRequest* getMotionRequest() const;
    
    void setEndRequest(RayRequest* rayreq);
    RayRequest* getEndRequest() const;
    
    virtual BehaviorNode::InvalidationHint dragStart(int x, int y, ButtonEvent* e);
    virtual BehaviorNode::InvalidationHint dragMotion(int x, int y, MotionEvent* e);
    virtual BehaviorNode::InvalidationHint dragEnd(int x, int y, ButtonEvent* e);
    void dragRedraw(int flag);
    InputEvent* dragEvent() const;
    VRS_TYPEINFO(Selector, Manipulator);
        
private:
    SO<RayRequest> startRequest_;
    SO<RayRequest> motionRequest_;
    SO<RayRequest> endRequest_;
    SO<Engine> engine_;
    
    InputEvent* dragEvent_;
    BehaviorNode::InvalidationHint dragRedraw_;
    
    void performRayRequest(int, int, Canvas*, RayRequest*);
};

inline void Selector::dragRedraw(int f) { dragRedraw_ = static_cast<BehaviorNode::InvalidationHint>(f); }
inline InputEvent* Selector::dragEvent() const { return dragEvent_; }

inline void Selector::setStartRequest(RayRequest* r) { startRequest_ = r; modified(); }
inline void Selector::setMotionRequest(RayRequest* r) { motionRequest_ = r; modified(); }
inline void Selector::setEndRequest(RayRequest* r) { endRequest_ = r; modified(); }

inline RayRequest* Selector::getStartRequest() const { return startRequest_; }
inline RayRequest* Selector::getMotionRequest() const { return motionRequest_; }
inline RayRequest* Selector::getEndRequest() const { return endRequest_; }

} // namespace VRS

#endif // VRS_SELECTOR_H

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