//////////////////////////////////////////////////////////////////////////////
//文件: CItem类扩展
//主要功能: 
//		操作各类元素或完成一定的功能
//		利用VC自带的CRectTracker类实现选择框的功能
//
//程序编写:
//日期: 2008年3月28日
//
//
/////////////////////////////////////////////////////////////////////////////

#include "StdAfx.h"
#include ".\itemrecttracker.h"
#include "SigmaDoc.h"
#include "SigmaView.h"

NItem::CItemRectTracker::CItemRectTracker(CSigmaDoc* ppDoc)
: CItem(ppDoc)
{
	m_tracker.m_rect = CRect(0,0,0,0);
	m_tracker.m_nStyle = 0;
	m_tracker.m_nStyle |= CRectTrackerEx::dottedLine;
	m_tracker.m_nStyle |= CRectTrackerEx::resizeOutside;
	//m_tracker.m_nStyle |= CRectTracker::hatchedBorder;
	m_bAllowInvert=TRUE;

	m_tracker.m_nHandleSize = 6;
	m_tracker.m_sizeMin.cx = 4;
	m_tracker.m_sizeMin.cy = 4;
}

NItem::CItemRectTracker::~CItemRectTracker(void)
{
}

void NItem::CItemRectTracker::EnableHatchBorder(BOOL bEnable)
{
	m_tracker.m_nStyle &= ~CRectTrackerEx::hatchedBorder;
	if(bEnable)
		m_tracker.m_nStyle |= CRectTrackerEx::hatchedBorder;
}

void NItem::CItemRectTracker::EnableHatchInside(BOOL bEnable)
{
	m_tracker.m_nStyle &= ~CRectTrackerEx::hatchInside;
	if(bEnable)
		m_tracker.m_nStyle |= CRectTrackerEx::hatchInside;
}

void CItemRectTracker::OnLButtonDown(CDC *pDC, UINT nFlags, CPoint point, int vk)
{
	CItem::OnLButtonDown(pDC, nFlags, point, vk);

	m_bakRect=m_tracker.m_rect;
	if (m_tracker.HitTest(point) < 0)
	{
		//CRectTracker track;
		//if (track.TrackRubberBand(GetView(), point, m_bAllowInvert))
		//{
		//	//设置一个新的区域
		//	track.m_rect.NormalizeRect();
		//	m_tracker.m_rect = track.m_rect;
		//	TraceEnd(-1);
		//}
	}
	else
	{
		////修改已有的区域
		//if (m_tracker.Track(GetView(), point, m_bAllowInvert))
		//{
		//	m_tracker.m_rect.NormalizeRect();
		//	TraceEnd(1);
		//}
	}
}

void NItem::CItemRectTracker::TraceEnd(int nStatus)
{
}

void NItem::CItemRectTracker::OnDraw(CXyDC* pXyDC, CDC* pDC)
{
	if (m_tracker.m_rect.Width() > 0 && m_tracker.m_rect.Height() > 0)
	{
		//m_tracker.Draw(GetScreenDC());
		m_tracker.Draw(pDC);
	}
		//m_tracker.Draw(pDC->GetDC());/*, RGB(255,0,0)*/
}

BOOL NItem::CItemRectTracker::OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message)
{
	if(pWnd) 
		if(m_tracker.SetCursor( pWnd, nHitTest )) return TRUE;
	return FALSE;
}

void NItem::CItemRectTracker::SetRect(CRect8 rect)
{
	CRect rt=GetDC()->GetScreen(rect);
	rt.NormalizeRect();
	m_tracker.m_rect=rt;
}

CRect8 NItem::CItemRectTracker::GetRect(void)
{
	return GetDC()->GetReal(m_tracker.m_rect);
}