SmPanEventHandler.h

 
#ifndef SMALLCHANGE_PAN_EVENTHANDLER_H
#define SMALLCHANGE_PAN_EVENTHANDLER_H
 
/**************************************************************************\
 * Copyright (c) Kongsberg Oil & Gas Technologies AS
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 * 
 * Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 * 
 * Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * 
 * Neither the name of the copyright holder nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
\**************************************************************************/
 
#include <Inventor/fields/SoSFFloat.h>
 
#include <SmallChange/eventhandlers/SmEventHandler.h>
#include <SmallChange/basic.h>
 
class SmPanEventHandlerP;
class SbSphereSheetProjector;
 
class SMALLCHANGE_DLL_API SmPanEventHandler : public SmEventHandler {
  typedef SmEventHandler inherited;
 
  SO_NODE_HEADER(SmPanEventHandler);
  
public:
  SmPanEventHandler(void);
  virtual void handleEvent(SoHandleEventAction * action);
  static void initClass(void);
  
  SoSFFloat zoomSpeed;
 
protected:
  virtual ~SmPanEventHandler();
 
  void pan(const SbVec2f & currpos, 
           const SbVec2f & prevpos);
 
  void spin(const SbVec2f & currpos, 
            const SbVec2f & prevpos);
 
  void zoom(const SbVec2f & currpos,
            const SbVec2f & prevpos);
 
  void zoom(const float delta);
 
private:
  SmPanEventHandlerP * pimpl;
};
 
#endif // !SMALLCHANGE_PAN_EVENTHANDLER_H