// PointSlider.cpp : implementation file
//

#include "stdafx.h"
#include "effecteditor.h"
#include "PointSlider.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CPointSlider

CPointSlider::CPointSlider()
{
	m_nPointSize = 10;
	m_nBoundaryMax = 100;
	m_nBoundaryMin = 0;
	m_nSelectPoint = -1;
}

CPointSlider::~CPointSlider()
{
}


BEGIN_MESSAGE_MAP(CPointSlider, CStatic)
	//{{AFX_MSG_MAP(CPointSlider)
	ON_WM_PAINT()
	ON_WM_MOUSEMOVE()
	ON_WM_LBUTTONDOWN()
	ON_WM_LBUTTONUP()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CPointSlider message handlers

int CPointSlider::GetWidth()
{
	RECT rcRect;
	GetClientRect(&rcRect);
	return rcRect.right - rcRect.left;
}

int CPointSlider::GetHeight()
{
	RECT rcRect;
	GetClientRect(&rcRect);
	return rcRect.bottom - rcRect.top;
}

void CPointSlider::SetPoint(int nPoint)
{
	list<int>::iterator it;
	BOOL bExist = FALSE;

	for(it = m_lstPoint.begin(); it != m_lstPoint.end(); it++)
	{
		if((*it) == nPoint) { bExist = TRUE; break; }
	}

	if(!bExist)
	{
		m_lstPoint.push_back(nPoint);

		Invalidate(TRUE);
	}
}

void CPointSlider::SetBoundary(int nMin, int nMax)
{
	m_nBoundaryMax = nMax;
	m_nBoundaryMin = nMin;
}

void CPointSlider::OnPaint() 
{
	CPaintDC dc(this); // device context for painting

	// TODO: Add your message handler code here
	CDC memDC;
	CBitmap memBmp, *oldBmp;
	list<int>::iterator it;
	int nPoint, nCenter, nSize = m_nPointSize / 2;

	memDC.CreateCompatibleDC(&dc);
	memBmp.CreateCompatibleBitmap(&dc, GetWidth(), GetHeight());

	oldBmp = (CBitmap *)memDC.SelectObject(&memBmp);
	memDC.FillSolidRect(0, 0, GetWidth(), GetHeight(), 0x00444444);

	HBRUSH red, white, *old;
	red = CreateSolidBrush(0x000000FF);
	white = CreateSolidBrush(0x00FFFFFF);

	old = (HBRUSH *)memDC.SelectObject(white);
	for(it = m_lstPoint.begin(); it != m_lstPoint.end(); it++)
	{
		nPoint = *(it);
		nCenter = (int)(((float)GetWidth() / (float)(m_nBoundaryMax - m_nBoundaryMin)) * nPoint);
		if(m_nSelectPoint > -1 && m_nSelectPoint == nPoint)
		{
			memDC.SelectObject(red);
			memDC.Ellipse(nCenter - nSize, 0, nCenter + nSize, GetHeight());
		} else
		{
			memDC.SelectObject(white);
			memDC.Ellipse(nCenter - nSize, 0, nCenter + nSize, GetHeight());
		}
	}

	memDC.SelectObject(old);
	DeleteObject(white);
	DeleteObject(red);

	dc.BitBlt(0, 0, GetWidth(), GetHeight(), &memDC, 0, 0, SRCCOPY);
	memDC.SelectObject(oldBmp);
	// Do not call CStatic::OnPaint() for painting messages
}

void CPointSlider::DeletePoint(int nPoint)
{
	list<int>::iterator it;

	for(it = m_lstPoint.begin(); it != m_lstPoint.end(); it++)
	{
		if((*it) == nPoint) { m_lstPoint.erase(it); break; }
	}
}

void CPointSlider::OnMouseMove(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	
	CStatic::OnMouseMove(nFlags, point);
}

void CPointSlider::OnLButtonDown(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	list<int>::iterator it;
	int nSize = m_nPointSize / 2, nCenter;
	BOOL bSelect = FALSE;

	for(it = m_lstPoint.begin(); it != m_lstPoint.end(); it++)
	{
		nCenter = (int)(((float)GetWidth() / (float)(m_nBoundaryMax - m_nBoundaryMin)) * (*it));
		if(nCenter - nSize <= point.x && point.x <= nCenter + nSize)
		{
			m_nSelectPoint = (*it);
			bSelect = TRUE;
			Invalidate(TRUE);
			long wP = ((short)m_nSelectPoint << 16) | 0x0000FFFF;
			long lP = (long)this->m_hWnd;
			::SendMessage(this->GetParent()->m_hWnd, WM_HSCROLL, wP, lP);
			break;
		}
	}

	if(!bSelect)
	{
		m_nSelectPoint = -1;
		Invalidate(TRUE);
	}

	CStatic::OnLButtonDown(nFlags, point);
}

void CPointSlider::OnLButtonUp(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default

	CStatic::OnLButtonUp(nFlags, point);
}


BOOL CPointSlider::PreTranslateMessage(MSG* pMsg) 
{
	// TODO: Add your specialized code here and/or call the base class
	if(pMsg->message == WM_KEYDOWN)
	{
		MessageBox("!423","135");
	}	
	return CStatic::PreTranslateMessage(pMsg);
}