#include "manualInteractorWindowLevel.h"
#include "wxVtk2DBaseView.h"
//-------------------------------------------------------------------
//-------------------------------------------------------------------
//-------------------------------------------------------------------

manualInteractorWindowLevel::manualInteractorWindowLevel()
{
	_stateWindowLevel	=	false;
	_backPx				=	0;
	_backPy				=	0;
	_backWindow			=	-1;
	_backLevel			=	-1;
}

//-------------------------------------------------------------------

manualInteractorWindowLevel::~manualInteractorWindowLevel()
{
}

//-------------------------------------------------------------------

bool manualInteractorWindowLevel::OnMouseMove()			// virtual 
{

	if (_stateWindowLevel==true)
	{
		int tmpPx,tmpPy;
		wxVTKRenderWindowInteractor *wxVTKiren;
		wxVTKiren = _vtkInteractorStyleBaseView->GetWxVtk2DBaseView()->GetWxVTKRenderWindowInteractor();
		wxVTKiren->GetEventPosition( tmpPx , tmpPy );

		double colorWin;
		double colorLev;
		
		vtkImageData* imgrange = ((wxVtk2DBaseView*)_vtkInteractorStyleBaseView->GetWxVtk2DBaseView())->GetVtkBaseData()->GetImageData();

		if(imgrange != NULL){
			double* scalarrange = imgrange->GetScalarRange();
			double scalarr = scalarrange[1] - scalarrange[0];
			//std::cout<<"scalar r="<<scalarr<<std::endl;
			int w, h;
			((wxWindow*)wxVTKiren)->GetSize(&w, &h);			

			double dw=w,dh=h;
			double dx = (scalarr*( _backPx - tmpPx ))/dw;
			double dy = (scalarr*( _backPy - tmpPy ))/dh;

			//colorWin=_backWindow - (scalarr)*( _backPx - tmpPx );
			colorWin=_backWindow - dx;
			colorLev=_backLevel  + dy;
		}else{
			colorWin=_backWindow - 2*( _backPx - tmpPx );
			colorLev=_backLevel  + 2*( _backPy - tmpPy );
		}

		if (colorWin<0)
		{ 
			colorWin=0;
		}
		if (colorWin>100000)
		{ 
			colorWin=100000;
		}	

		if (colorLev<0)
		{ 
			colorLev=0;
		}
		if (colorLev>100000)
		{ 
			colorLev=100000;
		}
		vtkImageViewer2 *vtkimageviewer2;
		vtkimageviewer2=((wxVtk2DBaseView*)_vtkInteractorStyleBaseView->GetWxVtk2DBaseView())->_imageViewer2XYZ->GetVtkImageViewer2();
		vtkimageviewer2->SetColorWindow(colorWin);
		vtkimageviewer2->SetColorLevel(colorLev);
//		vtkimageviewer2->Render();
	}
	return true;
}

//-------------------------------------------------------------------

bool manualInteractorWindowLevel::OnMiddleButtonDown()	// virtual 
{
	if ((_vtkInteractorStyleBaseView->GetInteractor()->GetControlKey()==0) &&
	 	(_vtkInteractorStyleBaseView->GetInteractor()->GetShiftKey()==0) ){
		_stateWindowLevel	= true;
		wxVTKRenderWindowInteractor *wxVTKiren;
		wxVTKiren = _vtkInteractorStyleBaseView->GetWxVtk2DBaseView()->GetWxVTKRenderWindowInteractor();
		wxVTKiren->GetEventPosition( _backPx , _backPy );
		_backWindow = ((wxVtk2DBaseView*)_vtkInteractorStyleBaseView->GetWxVtk2DBaseView())->_imageViewer2XYZ->GetVtkImageViewer2()->GetColorWindow();
		_backLevel  = ((wxVtk2DBaseView*)_vtkInteractorStyleBaseView->GetWxVtk2DBaseView())->_imageViewer2XYZ->GetVtkImageViewer2()->GetColorLevel();
	}
	return true;
}

//-------------------------------------------------------------------

bool manualInteractorWindowLevel::OnMiddleButtonUp()		// virtual
{
	if (_stateWindowLevel==true)
	{
		_stateWindowLevel=false;
	}
	return true;
}