// MenuGroup1.cpp: implementation of the CMenuGroup class.
//
//////////////////////////////////////////////////////////////////////

#include "MenuGroup1.h"

#define IMGHEIGHT 30
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CMenuGroup::CMenuGroup()
{
	UINT uiBack=IDB_MBUT_NOR_LEFT;
	bmpBack=new Bitmap();
	iStatebmpBack=0;
	for(int i=0;i<32;i++){
		stMenuItem[i].bmpContent=new Bitmap();
	}
	IsMouseOver=true;
}

CMenuGroup::~CMenuGroup()
{
}

void CMenuGroup::SetMenuGroup(HDC _hOffDC,int iCols, int iRows,int ix,int iy, int iWidth, char *szContent)
{
	CMenuGroup::_hOffDC=_hOffDC;
	CMenuGroup::iCols=iCols;
	CMenuGroup::iRows=iRows;
	CMenuGroup::ix=ix;
	CMenuGroup::iy=iy;
	CMenuGroup::iWidth=iWidth;
	HINSTANCE hInstance=GameEngine::GetEngine()->GetInstance();
	iStatebmpBack=0;
	for(int i=0;i<iRows;i++){
		for(int j=0;j<iCols;j++){
			stMenuItem[i*iCols+j].iCol=j;
			stMenuItem[i*iCols+j].iRow=i;
			char szFileName[32];
			int k=0;
			while(true){
				if(*(szContent)==':'){
					stMenuItem[i*iCols+j].bAnsw=false;
					szContent++;
					break;
				}
				if(*(szContent)=='|'){
					stMenuItem[i*iCols+j].bAnsw=true;	
					szContent++;
					break;
				}
				szFileName[k++]=*(szContent++);
			}
			szFileName[k--]='\0';
			
			char szFile[64];
			wsprintf(szFile,"Images\\Compounds\\%s.bmp",szFileName);
			stMenuItem[i*iCols+j].bmpContent->Create(_hOffDC,szFile);
			stMenuItem[i*iCols+j].iState=0;
		}
	}
	bIsExpanded=false;
	GameEngine::GetEngine()->SetMenuExpanded(false);
	iSelectedAnswer=-1;
	HDC hDC =GameEngine::GetEngine()->getOffScreenDC();
	DrawScreen(hDC);
}

bool CMenuGroup::MouseButtonDown(int x, int y, bool bLeft)
{
	if(!bIsExpanded && GameEngine::GetEngine()->IsMenuExpanded()){
		return false;
	}
	bool bIsWithinMenu=false;
	if(x>ix && x<ix+iWidth && y>iy && y<iy+IMGHEIGHT){
		bIsWithinMenu=true;
		iStatebmpBack=2;
		bIsExpanded=true;
		GameEngine::GetEngine()->SetMenuExpanded(true);
		HDC hDC =GameEngine::GetEngine()->getOffScreenDC();
		DrawScreen(hDC);
	}
	if(bIsExpanded){
		int iIndex;
		for(int i=1;i<=iRows;i++){
			for(int j=0;j<iCols;j++){
				iIndex=(i-1)*iCols+j;
				//bmpBack->Create(hDC,5000+(stMenuItem[iIndex].iState)*3,hInstance);
				if(x>ix+j*iWidth && x<ix+(j+1)*iWidth &&
					y>iy+i*IMGHEIGHT && y<iy+(i+1)*IMGHEIGHT){
					GameEngine::GetEngine()->SetCmdMenuMouseDown(true);
						stMenuItem[iIndex].iState=2;
						bIsWithinMenu=true;
						iStatebmpBack=0;
				}
			}
		}
		if(!bIsWithinMenu){
			bIsExpanded=false;
			GameEngine::GetEngine()->SetMenuExpanded(false);
		}
	}
	return true;
}

bool CMenuGroup::MouseButtonUp(int x, int y, bool bLeft)
{
	if(!bIsExpanded && GameEngine::GetEngine()->IsMenuExpanded()){
		return false;
	}
	GameEngine::GetEngine()->SetCmdMenuMouseDown(false);
	if(x>ix && x<ix+iWidth && y>iy && y<iy+IMGHEIGHT){
		HDC hDC =GameEngine::GetEngine()->getOffScreenDC();
		DrawScreen(hDC);
		return true;
	}
	if(bIsExpanded){
		int iIndex;
		for(int i=1;i<=iRows;i++){
			for(int j=0;j<iCols;j++){
				iIndex=(i-1)*iCols+j;
				//bmpBack->Create(hDC,5000+(stMenuItem[iIndex].iState)*3,hInstance);
				if(x>ix+j*iWidth && x<ix+(j+1)*iWidth &&
					y>iy+i*IMGHEIGHT && y<iy+(i+1)*IMGHEIGHT){
					GameEngine::GetEngine()->SetCmdMenuMouseDown(true);
						iSelectedAnswer=iIndex;
						bIsExpanded=false;
						GameEngine::GetEngine()->SetMenuExpanded(false);
						return true;
				}
			}
		}
	}
	return false;
}

bool CMenuGroup::MouseMove(int x, int y,bool bIsChecking)
{
	if(!bIsExpanded && GameEngine::GetEngine()->IsMenuExpanded()){
		return false;
	}
	if(x>ix && x<ix+iWidth && y>iy && y<iy+IMGHEIGHT){
		if(!bIsExpanded && iStatebmpBack!=1){
			iStatebmpBack=1;
			IsMouseOver=true;
			HDC hDC =GameEngine::GetEngine()->getOffScreenDC();
			DrawScreen(hDC,0,0,0,0,bIsChecking);
		}
	}
	else if(IsMouseOver){
		IsMouseOver=false;
		HDC hDC =GameEngine::GetEngine()->getOffScreenDC();
		DrawScreen(hDC,0,0,0,0,bIsChecking);
	}
	/*bIsExpanded=false;
	GameEngine::GetEngine()->SetMenuExpanded(false);*/
	//Check for the sub menus
	if(bIsExpanded){
		int iIndex;
		for(int i=1;i<=iRows;i++){
			for(int j=0;j<iCols;j++){
				iIndex=(i-1)*iCols+j;
				//bmpBack->Create(hDC,5000+(stMenuItem[iIndex].iState)*3,hInstance);
				if(x>ix+j*iWidth && x<ix+(j+1)*iWidth &&
					y>iy+i*IMGHEIGHT && y<iy+(i+1)*IMGHEIGHT){
						if(GameEngine::GetEngine()->IsCmdMenuMouseDown())
							stMenuItem[iIndex].iState=2;
						else
							stMenuItem[iIndex].iState=1;
						return true;
				}
				else
					stMenuItem[iIndex].iState=0;
			}
		}
	}
	if(!bIsExpanded)
		iStatebmpBack=0;
	return false;
}

void CMenuGroup::DrawScreen(HDC hDC,int iPosX,int iPosY,int iLayerX,int iLayerY,bool bIsChecking)
{
	if(!bIsExpanded && GameEngine::GetEngine()->IsMenuExpanded()){
		return ;
	}
	HWND hWnd=GameEngine::GetEngine()->GetWindow();
	HINSTANCE hInstance=GameEngine::GetEngine()->GetInstance();
	bmpBack->Create(hDC,5000+iStatebmpBack*3,hInstance);
	bmpBack->Draw(_hOffDC,ix,iy);
	bmpBack->Create(hDC,5000+iStatebmpBack*3+1,hInstance);
	for(int i=5;i<=iWidth-5;i+=5){
		bmpBack->Draw(_hOffDC,ix+i,iy);
	}
	bmpBack->Draw(_hOffDC,ix+iWidth-10,iy);
	bmpBack->Create(hDC,5000+iStatebmpBack*3+2,hInstance);
	bmpBack->Draw(_hOffDC,ix+iWidth-5,iy);
	
	if(bIsExpanded){
		int iIndex;
		for(int i=1;i<=iRows;i++){
			for(int j=0;j<iCols;j++){
				iIndex=(i-1)*iCols+j;
				bmpBack->Create(hDC,5000+(stMenuItem[iIndex].iState)*3,hInstance);
				bmpBack->Draw(hDC,ix+j*iWidth-iLayerX+iPosX,iy+i*(IMGHEIGHT+2)-iLayerY+iPosY);
			
				bmpBack->Create(hDC,5000+(stMenuItem[iIndex].iState)*3+1,hInstance);
				for(int k=5;k<=iWidth-5;k+=5){
					bmpBack->Draw(hDC,ix+j*iWidth-iLayerX+iPosX+k,iy+i*(IMGHEIGHT+2)-iLayerY+iPosY);
				}
				bmpBack->Draw(hDC,ix+j*iWidth-iLayerX+iPosX+iWidth-10,iy+i*(IMGHEIGHT+2)-iLayerY+iPosY);

				bmpBack->Create(hDC,5000+(stMenuItem[iIndex].iState)*3+2,hInstance);

				bmpBack->Draw(hDC,ix+j*iWidth-iLayerX+iPosX+iWidth-5,iy+i*(IMGHEIGHT+2)-iLayerY+iPosY);
				DrawCompound(hDC,iIndex,ix+j*iWidth-iLayerX+iPosX,iy+i*(IMGHEIGHT+2)-iLayerY+iPosY);
			}
		}
	}
	if( bIsChecking && IsMouseOver){
		for(int i = 0;i<iRows*iCols;i++){
			if(stMenuItem[i].bAnsw){
				DrawCompound(_hOffDC,i,ix,iy);
			}
		}
	}
	else if(iSelectedAnswer!=-1){
		DrawCompound(_hOffDC,iSelectedAnswer,ix,iy);
	}
	bmpBack->SetEmpty();

}


void CMenuGroup::DrawCompound(HDC hDC,int iIndex, int x, int y)
{
	int ibmpWidth=stMenuItem[iIndex].bmpContent->GetWidth();
	int ibmpHeight=stMenuItem[iIndex].bmpContent->GetHeight();
    
	HDC hTempDC = CreateCompatibleDC(hDC);
	HBITMAP _hLayerBitmap = CreateCompatibleBitmap(hDC,ibmpWidth, ibmpHeight);
    HBITMAP hOldBitmap = (HBITMAP)SelectObject(hTempDC,_hLayerBitmap);

	HBRUSH hPinkBrush = CreateSolidBrush(RGB(255, 0, 255));
	HBRUSH hBrush = (HBRUSH)SelectObject(hTempDC, hPinkBrush);
	Rectangle(hTempDC,0,0,ibmpWidth, ibmpHeight);
	SelectObject(hTempDC,hBrush);
	DeleteObject(hPinkBrush);

    stMenuItem[iIndex].bmpContent->Draw(hTempDC,0,0,true,RGB(221,221,221));

    TransparentBlt(hDC, x+iWidth/2-ibmpWidth/2, y+IMGHEIGHT/2-ibmpHeight/2,ibmpWidth, ibmpHeight,
		hTempDC, 0, 0, ibmpWidth, ibmpHeight,RGB(255,0,255));
	SelectObject(hTempDC,hOldBitmap);
	DeleteObject(_hLayerBitmap);

	DeleteDC(hTempDC);
}

bool CMenuGroup::IsCorrectAnswerGiven()
{
	if(iSelectedAnswer==-1)
		return false;
	return stMenuItem[iSelectedAnswer].bAnsw;
}

bool CMenuGroup::IsAttempted()
{
	if(iSelectedAnswer==-1)
		return false;
	else
		return true;
	return true;
}

int CMenuGroup::GetSelectedIndex()
{
	return iSelectedAnswer;

}

int CMenuGroup::GetCorrectIndex()
{
	for(int i=0;i<iRows*iCols;i++){
		if(stMenuItem[i].bAnsw)
			return i;
	}
	return -1;

}

void CMenuGroup::SetSelectedIndex(int index)
{
	iSelectedAnswer=index;
}