SNMCameraZoomController.h

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/*********************************************************\
 *  File: SNMCameraZoomController.h                      *
 *
 *  Copyright (C) 2002-2011 The PixelLight Team (http://www.pixellight.org/)
 *
 *  This file is part of PixelLight.
 *
 *  PixelLight 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 3 of the License, or
 *  (at your option) any later version.
 *
 *  PixelLight 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 PixelLight. If not, see <http://www.gnu.org/licenses/>.
\*********************************************************/


#ifndef __PLENGINE_CONTROLLER_SNMCAMERAZOOMCONTROLLER_H__
#define __PLENGINE_CONTROLLER_SNMCAMERAZOOMCONTROLLER_H__
#pragma once


//[-------------------------------------------------------]
//[ Includes                                              ]
//[-------------------------------------------------------]
#include <PLScene/Scene/SceneNodeModifiers/SNMCameraZoom.h>
#include "PLEngine/PLEngine.h"


//[-------------------------------------------------------]
//[ Forward declarations                                  ]
//[-------------------------------------------------------]
namespace PLInput {
    class Control;
}
namespace PLEngine {
    class CameraZoomController;
}


//[-------------------------------------------------------]
//[ Namespace                                             ]
//[-------------------------------------------------------]
namespace PLEngine {


//[-------------------------------------------------------]
//[ Classes                                               ]
//[-------------------------------------------------------]
/**
*  @brief
*    Scene node modifier class implementing camera zoom input control
*
*  @remarks
*    When using the unchanged virtual standard controller:
*    Hold the right mouse button to zoom.
*
*  @note
*    - Primary intended for rapid prototyping
*/
class SNMCameraZoomController : public PLScene::SNMCameraZoom {


    //[-------------------------------------------------------]
    //[ RTTI interface                                        ]
    //[-------------------------------------------------------]
    pl_class(PL_RTTI_EXPORT, SNMCameraZoomController, "PLEngine", PLScene::SNMCameraZoom, "Scene node modifier class implementing camera zoom input control")
        // Attributes
        pl_attribute(InputSemantic, PLCore::String, "", ReadWrite,  DirectValue,    "Semantic of this input controller (e.g. \"Camera\")",  "")
        // Constructors
        pl_constructor_1(ParameterConstructor,  PLScene::SceneNode&,    "Parameter constructor",    "")
        // Slot
        pl_slot_1(OnControl,    PLInput::Control&,  "Called when a control event has occurred, the control causing the event as first parameter",   "")
    pl_class_end


    //[-------------------------------------------------------]
    //[ Public functions                                      ]
    //[-------------------------------------------------------]
    public:
        /**
        *  @brief
        *    Constructor
        *
        *  @param[in] cSceneNode
        *    Owner scene node
        */
        PL_API SNMCameraZoomController(PLScene::SceneNode &cSceneNode);

        /**
        *  @brief
        *    Destructor
        */
        PL_API virtual ~SNMCameraZoomController();


    //[-------------------------------------------------------]
    //[ Public virtual PLScene::SceneNodeModifier functions   ]
    //[-------------------------------------------------------]
    public:
        PL_API virtual PLInput::Controller *GetInputController() const override;


    //[-------------------------------------------------------]
    //[ Protected virtual PLScene::SceneNodeModifier functions ]
    //[-------------------------------------------------------]
    protected:
        PL_API virtual void InformedOnInit() override;
        PL_API virtual void OnActivate(bool bActivate) override;


    //[-------------------------------------------------------]
    //[ Private functions                                     ]
    //[-------------------------------------------------------]
    private:
        /**
        *  @brief
        *    Called when a control event has occurred
        *
        *  @param[in] cControl
        *    The control causing the event
        */
        void OnControl(PLInput::Control &cControl);


    //[-------------------------------------------------------]
    //[ Private data                                          ]
    //[-------------------------------------------------------]
    private:
        CameraZoomController *m_pController;    /**< Camera zoom input controller instance, always valid! */


};


//[-------------------------------------------------------]
//[ Namespace                                             ]
//[-------------------------------------------------------]
} // PLEngine


#endif // __PLENGINE_CONTROLLER_SNMCAMERAZOOMCONTROLLER_H__