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#ifndef _H_NXOPENGLCAMERA_SM
#define _H_NXOPENGLCAMERA_SM
#define SMC_USES_IOSTREAMS
#include "statemap.h"
// Forward declarations.
class Trackball;
class Trackball_Initial;
class Trackball_Rotating;
class Trackball_Panning;
class Trackball_Default;
class NXOpenGLCameraState;
class NXOpenGLCameraContext;
class NXOpenGLCamera;
class NXOpenGLCameraState :
public statemap::State
{
public:
NXOpenGLCameraState(const char *name, int stateId)
: statemap::State(name, stateId)
{};
virtual void Entry(NXOpenGLCameraContext&) {};
virtual void Exit(NXOpenGLCameraContext&) {};
virtual void panEvent(NXOpenGLCameraContext& context, int x, int y);
virtual void panStartEvent(NXOpenGLCameraContext& context, int x, int y);
virtual void panStopEvent(NXOpenGLCameraContext& context, int x, int y);
virtual void rotateStartEvent(NXOpenGLCameraContext& context, int x, int y);
virtual void rotateStopEvent(NXOpenGLCameraContext& context, int x, int y);
virtual void rotatingEvent(NXOpenGLCameraContext& context, int x, int y);
protected:
virtual void Default(NXOpenGLCameraContext& context);
};
class Trackball
{
public:
static Trackball_Initial Initial;
static Trackball_Rotating Rotating;
static Trackball_Panning Panning;
};
class Trackball_Default :
public NXOpenGLCameraState
{
public:
Trackball_Default(const char *name, int stateId)
: NXOpenGLCameraState(name, stateId)
{};
};
class Trackball_Initial :
public Trackball_Default
{
public:
Trackball_Initial(const char *name, int stateId)
: Trackball_Default(name, stateId)
{};
void Default(NXOpenGLCameraContext& context);
void panStartEvent(NXOpenGLCameraContext& context, int x, int y);
void rotateStartEvent(NXOpenGLCameraContext& context, int x, int y);
};
class Trackball_Rotating :
public Trackball_Default
{
public:
Trackball_Rotating(const char *name, int stateId)
: Trackball_Default(name, stateId)
{};
void Default(NXOpenGLCameraContext& context);
void rotateStopEvent(NXOpenGLCameraContext& context, int x, int y);
void rotatingEvent(NXOpenGLCameraContext& context, int x, int y);
};
class Trackball_Panning :
public Trackball_Default
{
public:
Trackball_Panning(const char *name, int stateId)
: Trackball_Default(name, stateId)
{};
void Default(NXOpenGLCameraContext& context);
void panEvent(NXOpenGLCameraContext& context, int x, int y);
void panStopEvent(NXOpenGLCameraContext& context, int x, int y);
};
class NXOpenGLCameraContext :
public statemap::FSMContext
{
public:
NXOpenGLCameraContext(NXOpenGLCamera& owner)
: _owner(owner)
{
setState(Trackball::Initial);
Trackball::Initial.Entry(*this);
};
NXOpenGLCamera& getOwner() const
{
return (_owner);
};
NXOpenGLCameraState& getState() const
{
if (_state == NULL)
{
throw statemap::StateUndefinedException();
}
return (dynamic_cast<NXOpenGLCameraState&>(*_state));
};
void panEvent(int x, int y)
{
(getState()).panEvent(*this, x, y);
};
void panStartEvent(int x, int y)
{
(getState()).panStartEvent(*this, x, y);
};
void panStopEvent(int x, int y)
{
(getState()).panStopEvent(*this, x, y);
};
void rotateStartEvent(int x, int y)
{
(getState()).rotateStartEvent(*this, x, y);
};
void rotateStopEvent(int x, int y)
{
(getState()).rotateStopEvent(*this, x, y);
};
void rotatingEvent(int x, int y)
{
(getState()).rotatingEvent(*this, x, y);
};
private:
NXOpenGLCamera& _owner;
};
#endif // _H_NXOPENGLCAMERA_SM
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