#include "CDragListCtrl.h"

// BEGIN_MESSAGE_MAP(CDragListCtrl, CListCtrl)
// 	ON_NOTIFY(LVN_BEGINDRAG, IDC_LIST_LOOP_SUB_LIST, &CDragListCtrl::OnLvnBegindragListLoopTaskList)
// 	ON_MESSAGE(WM_MOUSEMOVE, OnMouseMove)
// 	ON_MESSAGE(WM_LBUTTONUP, OnLButtonUp)
// END_MESSAGE_MAP()

CDragListCtrl::CDragListCtrl()
{
	m_nSelItem = -1;
	m_pDragImageList = NULL;
	m_bDragging = FALSE;
}

CDragListCtrl::~CDragListCtrl()
{

}

/*void CDragListCtrl::OnLvnBegindrag(NMHDR *pNMHDR, LRESULT *pResult)
{
	LPNMLISTVIEW pNMLV = reinterpret_cast<LPNMLISTVIEW>(pNMHDR);
	// TODO: 在此添加控件通知处理程序代码
	*pResult = 0;

	int count = GetSelectedCount();
	if (1 != count)
		return;

	POSITION pos = GetFirstSelectedItemPosition();
	if (NULL == pos)
		return;

	m_nSelItem = GetNextSelectedItem(pos);

	if (-1 == m_nSelItem)
		return;

	CPoint pt = pNMLV->ptAction;
	m_pDragImageList = CreateDragImage(m_nSelItem, &pt);
	if (NULL == m_pDragImageList)
		return;

	m_bDragging = TRUE;
	m_pDragImageList->BeginDrag(0, CPoint(8, 8));
	ClientToScreen(&pt);
	CRect rt;
	GetParent()->GetWindowRect(&rt);
	pt.x -= rt.left;
	pt.y -= rt.top;
	m_pDragImageList->DragEnter(GetParent(), pt);
	SetCapture();
}


void CDragListCtrl::OnLButtonUp(UINT nFlags, CPoint point)
{
	// TODO: 在此添加消息处理程序代码和/或调用默认值
	if (m_bDragging)
	{
		ReleaseCapture();
		m_bDragging = FALSE;
		//m_nSelItem = -1;
		m_pDragImageList->DragLeave(GetParent());
		m_pDragImageList->EndDrag();
		m_pDragImageList->DeleteImageList();

		delete m_pDragImageList;
		m_pDragImageList = NULL;
	}

	CListCtrl::OnLButtonUp(nFlags, point);
}

void CDragListCtrl::OnMouseMove(UINT nFlags, CPoint point)
{
	// TODO: 在此添加消息处理程序代码和/或调用默认值
	if (m_bDragging)
	{
		CPoint pt = point;
		ClientToScreen(&pt);

		CRect rt;
		GetParent()->GetWindowRect(&rt);
		pt.x -= rt.left;
		pt.y -= rt.top;
		m_pDragImageList->DragMove(pt);
	}

	CListCtrl::OnMouseMove(nFlags, point);
	}*/
BEGIN_MESSAGE_MAP(CDragListCtrl, CListCtrl)
	ON_NOTIFY_REFLECT(LVN_BEGINDRAG, &CDragListCtrl::OnLvnBegindrag)
	ON_WM_LBUTTONUP()	
	ON_WM_MOUSEMOVE()
	//ON_WM_LBUTTONDOWN()
END_MESSAGE_MAP()

void CDragListCtrl::OnLvnBegindrag(NMHDR *pNMHDR, LRESULT *pResult)
{
	LPNMLISTVIEW pNMLV = reinterpret_cast<LPNMLISTVIEW>(pNMHDR);
	// TODO:  在此添加控件通知处理程序代码
	*pResult = 0;

	int count = GetSelectedCount();
	if (1 != count)
		return;

	POSITION pos = GetFirstSelectedItemPosition();
	if (NULL == pos)
		return;

	m_nSelItem = GetNextSelectedItem(pos);

	if (-1 == m_nSelItem)
		return;

	CPoint pt = pNMLV->ptAction;
	m_pDragImageList = CreateDragImage(m_nSelItem, &pt);
	if (NULL == m_pDragImageList)
		return;

	m_bDragging = TRUE;
	m_pDragImageList->BeginDrag(0, CPoint(8, 8));
	ClientToScreen(&pt);
	CRect rt;
	GetParent()->GetWindowRect(&rt);
	pt.x -= rt.left;
	pt.y -= rt.top;
	m_pDragImageList->DragEnter(GetParent(), pt);

	CDragList::BeginDrag(m_hWnd, pt);
	SetCapture();
}


void CDragListCtrl::OnMouseMove(UINT nFlags, CPoint point)
{
	// TODO:  在此添加消息处理程序代码和/或调用默认值
	if (m_bDragging)
	{
		CPoint pt = point;
		ClientToScreen(&pt);

		CRect rt;
		GetParent()->GetWindowRect(&rt);
		pt.x -= rt.left;
		pt.y -= rt.top;
		m_pDragImageList->DragMove(pt);
	}

	if (CDragList::m_SelectItem != SELECT_NONE && nFlags&MK_LBUTTON)
	{
		CDragList::Dragging(m_hWnd, point);
	}

	CListCtrl::OnMouseMove(nFlags, point);
}

void CDragListCtrl::OnLButtonUp(UINT nFlags, CPoint point)
{
	// TODO:  在此添加消息处理程序代码和/或调用默认值
	if (m_bDragging)
	{
		ReleaseCapture();
		m_bDragging = FALSE;
		//m_nSelItem = -1;
		m_pDragImageList->DragLeave(GetParent());
		m_pDragImageList->EndDrag();
		m_pDragImageList->DeleteImageList();

		delete m_pDragImageList;
		m_pDragImageList = NULL;
	}

	CDragList::EndDrag(m_hWnd, point);
	CListCtrl::OnLButtonUp(nFlags, point);
}
/*void CDragListCtrl::OnLvnBegindrag(NMHDR *pNMHDR, LRESULT *pResult)
{
	LPNMLISTVIEW pNMLV = reinterpret_cast<LPNMLISTVIEW>(pNMHDR);
	// TODO:  在此添加控件通知处理程序代码
	*pResult = 0;

	int count = GetSelectedCount();
	if (1 != count)
		return;

	POSITION pos = GetFirstSelectedItemPosition();
	if (NULL == pos)
		return;

	m_nSelItem = GetNextSelectedItem(pos);

	if (-1 == m_nSelItem)
		return;

	CPoint pt = pNMLV->ptAction;
	m_pDragImageList = CreateDragImage(m_nSelItem, &pt);
	if (NULL == m_pDragImageList)
		return;

	m_bDragging = TRUE;
	m_pDragImageList->BeginDrag(0, CPoint(8, 8));
	ClientToScreen(&pt);
	CRect rt;
	GetParent()->GetWindowRect(&rt);
	pt.x -= rt.left;
	pt.y -= rt.top;
	m_pDragImageList->DragEnter(GetParent(), pt);
	SetCapture();
}


void CDragListCtrl::OnMouseMove(UINT nFlags, CPoint point)
{
	// TODO:  在此添加消息处理程序代码和/或调用默认值
	if (m_bDragging)
	{
		CPoint pt = point;
		ClientToScreen(&pt);

		CRect rt;
		GetParent()->GetWindowRect(&rt);
		pt.x -= rt.left;
		pt.y -= rt.top;
		m_pDragImageList->DragMove(pt);
	}

	CListCtrl::OnMouseMove(nFlags, point);
}

void CDragListCtrl::OnLButtonUp(UINT nFlags, CPoint point)
{
	// TODO:  在此添加消息处理程序代码和/或调用默认值
	if (m_bDragging)
	{
		ReleaseCapture();
		m_bDragging = FALSE;
		//m_nSelItem = -1;
		m_pDragImageList->DragLeave(GetParent());
		m_pDragImageList->EndDrag();
		m_pDragImageList->DeleteImageList();

		delete m_pDragImageList;
		m_pDragImageList = NULL;
	}
	CListCtrl::OnLButtonUp(nFlags, point);
	}*/

// void CDragListCtrl::OnLButtonDown(UINT nFlags, CPoint point)
// {
// 	// TODO:  在此添加消息处理程序代码和/或调用默认值
// 
// 	CListCtrl::OnLButtonDown(nFlags, point);
// 	CDragList::BeginDrag(m_hWnd, point);
// 	OutputDebugString(_T("CDragListCtrl::OnLButtonDown()\n"));
// }