#include <aladin/graph.hpp>
#include <aladin/profiledata.hpp>
#include <common/purehdc.hpp>
#include <common/resbmp.hpp>
#include <common/drawitem.hpp>
#include <jpgimg/dib24.hpp>
#include <jpgimg/jpgimg.hpp>
			
OwnerDrawGraph::OwnerDrawGraph(GUIWindow &parentWnd,HWND hControlWnd,UINT controlID) 
: mParentWnd(parentWnd), Control(hControlWnd,controlID), mHasData(false)
{
  PureDevice pureDevice(*this);
	mBkGndBrush.createHatchBrush(Brush::HDiag,RGBColor(255,0,0));

  mDIBitmap=new DIB24();
	mDIBitmap.disposition(PointerDisposition::Delete);
	mDIBitmap->create(width(),height(),pureDevice);

	mDrawItemHandler.setCallback(this,&OwnerDrawGraph::drawItemHandler);
	mControlColorHandler.setCallback(this,&OwnerDrawGraph::controlColorHandler);
	mParentWnd.insertHandler(VectorHandler::DrawItemHandler,&mDrawItemHandler);
	mParentWnd.insertHandler(VectorHandler::ControlColorHandler,&mControlColorHandler);
}

OwnerDrawGraph::~OwnerDrawGraph()
{
	mParentWnd.removeHandler(VectorHandler::DrawItemHandler,&mDrawItemHandler);
	mParentWnd.removeHandler(VectorHandler::ControlColorHandler,&mControlColorHandler);
}

CallbackData::ReturnType OwnerDrawGraph::drawItemHandler(CallbackData &someCallbackData)
{
  DrawItem drawItem(*((LPDRAWITEMSTRUCT)someCallbackData.lParam()));
	if(drawItem.controlID()!=controlID())return (CallbackData::ReturnType)TRUE;
	return handleDraw(drawItem);
}

CallbackData::ReturnType OwnerDrawGraph::controlColorHandler(CallbackData &someCallbackData)
{
	Control wndButton((HWND)someCallbackData.lParam(),::GetDlgCtrlID((HWND)someCallbackData.lParam()),FALSE);
	if(!(*this==wndButton))return (CallbackData::ReturnType)FALSE;
  PureDevice pureDevice((HDC)someCallbackData.wParam());
	return handleControlColor(pureDevice,wndButton);
}

void OwnerDrawGraph::drawBitmap(const DrawItem &drawItem)
{
	PureDevice displayDevice(drawItem.deviceContext());
  mDIBitmap->bitBlt(displayDevice,Rect(0,0,width(),height()),Point(0,0));
}

// *************** virtuals

WORD OwnerDrawGraph::handleDraw(const DrawItem &drawItem)
{
  WORD retCode(TRUE);

  switch(drawItem.itemAction())
	{
	  case ODA_DRAWENTIRE :
		  drawEntire(drawItem);
		  break;
		case ODA_SELECT :
		  retCode=drawSelect(drawItem);
		  break;
		case ODA_FOCUS :
		  drawFocus(drawItem);
		  break;
	}
  return retCode;
}

WORD OwnerDrawGraph::handleMeasureItem(MeasureItem &/*measureItem*/)
{
  return TRUE;
}

LPARAM OwnerDrawGraph::handleControlColor(PureDevice &/*pureDevice*/,Control &/*wndButton*/)
{
  return (CallbackData::ReturnType)mBkGndBrush.getBrush();
}

void OwnerDrawGraph::drawEntire(const DrawItem &drawItem)
{
  if(drawItem.itemState()&ODS_SELECTED)drawBitmap(drawItem);
	else if(drawItem.itemState()&ODS_FOCUS)drawBitmap(drawItem);
	else if(drawItem.itemState()&ODS_DISABLED)drawBitmap(drawItem);
	else drawBitmap(drawItem);
  drawButtonText(drawItem);
	drawButtonLines(drawItem);
  return;
}

WORD OwnerDrawGraph::drawSelect(const DrawItem &drawItem)
{
  WORD retCode(TRUE);
  if(drawItem.itemState()&ODS_SELECTED)drawBitmap(drawItem);
	else {drawBitmap(drawItem);retCode=FALSE;}
	drawButtonText(drawItem);
	drawButtonLines(drawItem);
	return retCode;
}

void OwnerDrawGraph::drawFocus(const DrawItem &drawItem)
{
  if(drawItem.itemState()&ODS_FOCUS)drawBitmap(drawItem);
	else drawBitmap(drawItem);
  drawButtonText(drawItem);
	drawButtonLines(drawItem);
  return;
}

void OwnerDrawGraph::drawButtonText(const DrawItem &drawItem)
{
/*  TEXTMETRIC textMetric;
	Rect drawRect;
  String strText;
  PureDevice controlDevice(drawItem.deviceContext());

	windowText(strText);
	if(strText.isNull())return;
	controlDevice.setBkMode(PureDevice::Transparent);
	controlDevice.select((GDIObj)mTextFont,TRUE);
	controlDevice.setTextColor(textColor());	
	::GetTextMetrics(drawItem.deviceContext(),&textMetric);
	drawRect=drawItem.rectItem();
	controlDevice.textOut(0,(drawRect.bottom()+drawRect.top()-textMetric.tmHeight)/2,strText);
	controlDevice.select((GDIObj)mTextFont,FALSE);   */
}

void OwnerDrawGraph::drawButtonLines(const DrawItem &drawItem)
{
  PureDevice controlDevice(drawItem.deviceContext());
	controlDevice.line(Point(0,0),Point(width(),0),RGBColor(0,0,0));
	controlDevice.line(Point(0,0),Point(0,height()),RGBColor(0,0,0));
	controlDevice.line(Point(0,height()-1),Point(width(),height()-1),RGBColor(255,255,255));
	controlDevice.line(Point(width(),height()-1),Point(width()-1,0),RGBColor(255,255,255));  
}

void OwnerDrawGraph::clearData(void)
{
  mDIBitmap->setBits(0);
  mHasData=false;
}

void OwnerDrawGraph::setData(DiveProfile &diveProfile)
{
  Block<ProfileData> &profileData=(Block<ProfileData> &)diveProfile;
	int maxDepth(getMaxDepth(profileData));
  double wRatio=(double)width()/(double)profileData.size();
	double hRatio=((double)height()/maxDepth)-.05;
	double x=wRatio;

  mDIBitmap->setBits(0);
	for(int index=0;index<profileData.size()-1;index++)
	{
	  ProfileData &pData=profileData[index];
		ProfileData &pNextData=profileData[index+1];
	  mDIBitmap->line(Point(x,height()-(int)(double)pData.getDepth()*(double)hRatio),Point(x+wRatio,height()-(int)(double)pNextData.getDepth()*(double)hRatio),RGB888(0,255,0));
		x+=wRatio;
	}
	mHasData=true;
}

int OwnerDrawGraph::getMaxDepth(Block<ProfileData> &profileData)
{
  int maxDepth(0);

	for(int index=0;index<profileData.size();index++)
	{
	  ProfileData &pData=profileData[index];
		if(pData.getDepth()>maxDepth)maxDepth=pData.getDepth();
	}
	return maxDepth;
}

bool OwnerDrawGraph::saveBitmap(const String &strPathFileName)
{
  JPGImage jpgImage;
	RGB888 rgb888;

	BitmapInfo &bmInfo=jpgImage.getBitmapInfo();
	bmInfo.bitCount(BitmapInfo::Bit24);
	bmInfo.width(mDIBitmap->width());
	bmInfo.height(mDIBitmap->height());
	bmInfo.colorUsed(0);
	bmInfo.colorImportant(0);
	jpgImage.getRGBArray().size(mDIBitmap->extent());
	for(int row=0;row<mDIBitmap->height();row++)
	{
	  for(int col=0;col<mDIBitmap->width();col++)
		{
		  mDIBitmap->getAt(row,col,rgb888);
			jpgImage.setAt(row,col,rgb888);
		}
	}
  jpgImage.saveBitmap(strPathFileName);
  return true;
}