stmaddresseventhandle.cpp

一个简单的vc++开发的城市公交地图编辑器源代码及生成的地图样例

// STMAddressEventHandle.cpp: implementation of the CSTMAddressEventHandle class.
//
//////////////////////////////////////////////////////////////////////
#include "stdafx.h"
#include "stmeditor.h"
#include "STMAddressEventHandle.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif
#include "AddNameInputDlg.h"
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CSTMAddressEventHandle::CSTMAddressEventHandle()
{
	m_pDoc=NULL;
	m_bViewAddress=TRUE;
	m_pMapView=NULL;
}

CSTMAddressEventHandle::~CSTMAddressEventHandle()
{

}
void CSTMAddressEventHandle::OnMouseMove(UINT nFlags, CPoint point)
{
	POINT	originpoint;
	originpoint=m_pMapView->GetScrollPosition();
	point.Offset(originpoint);
	if(!(nFlags&MK_LBUTTON))//	gerenal operator
	{
		if(m_pDoc->m_bFocusChanged)
		{
			if(m_pDoc->m_preFocusEI.eleType==ET_ADDRESS &&
				m_pDoc->m_preFocusEI.index!=-1)// restore old focus address
			{
				DrawAddress(m_pDoc->m_preFocusEI.index);
			}
			if(m_pDoc->m_focusEI.eleType==ET_ADDRESS &&
				m_pDoc->m_focusEI.index!=-1)	//hilight the focus address
			{
				DrawAddress(m_pDoc->m_focusEI.index);
			}
		}
	}else	//drag
	{
		if(CanAddressMove())//move address
		{
			if(m_pDoc->m_activeType==ACT_ADDRESS_PICK)
				m_pDoc->m_activeType=ACT_ADDRESS_MOVE;
			if(m_pDoc->m_activeType==ACT_ADDRESS_MOVE)
			{
				ELEINFO ei=m_pDoc->m_arrSel.GetAt(0);
				CRgn addressrgn;
				m_pDoc->CalcAddressRgn(addressrgn,ei.index);
				addressrgn.OffsetRgn(-originpoint.x,-originpoint.y);
				m_pDoc->MoveAddress(ei.index,point);
				m_pMapView->InvalidateRgn(&addressrgn,FALSE);
				DrawAddress(ei.index);
			}	
		}
	}
}

void CSTMAddressEventHandle::OnRButtonUp(UINT nFlags, CPoint point)
{
	POINT	originpoint;
	originpoint=m_pMapView->GetScrollPosition();
	point.Offset(originpoint);
	if(m_pDoc->m_focusEI.eleType==ET_ADDRESS && 
		m_pDoc->m_focusEI.index !=-1)
	{
		if(m_pDoc->m_activeType!=ACT_ADDRESS_MOVE) //delete address
		{
			CRgn effectrgn;
			m_pDoc->RemoveAddress(effectrgn,m_pDoc->m_focusEI.index);
			effectrgn.OffsetRgn(-originpoint.x,-originpoint.y);
			m_pDoc->m_focusEI.index=-1;
			m_pMapView->InvalidateRgn(&effectrgn,FALSE);
		}
	}
}

void CSTMAddressEventHandle::OnLButtonUp(UINT nFlags, CPoint point)
{
	POINT	originpoint;
	originpoint=m_pMapView->GetScrollPosition();
	point.Offset(originpoint);
	if(m_pDoc->m_focusEI.eleType==ET_NULL)//destinate focus type
	{
		if(m_pDoc->m_activeType==ACT_ADDRESS_PICK)
		{
			ADDRESSINFO ai;
			CAddNameInputDlg inputdlg;
			if(inputdlg.DoModal()==IDOK)
			{
				strcpy(ai.name,inputdlg.m_AddName);
				ai.type=inputdlg.m_AddType;
				ai.pos=point;
				int index=m_pDoc->AddAddress(ai);
				DrawAddress(index);
			}
		}
	}else if(m_pDoc->m_focusEI.eleType==ET_ADDRESS && 
		m_pDoc->m_focusEI.index!=-1)	//self type
	{
		if(m_pDoc->m_activeType==ACT_ADDRESS_PICK)
		{
			if(m_pDoc->m_focusEI.eleType==ET_ADDRESS)//非法 position
			{
				m_pMapView->MessageBox("duplicated address position","error position!");
			}
		}else if(m_pDoc->m_activeType==ACT_ADDRESS_MOVE)
		{
			m_pDoc->m_activeType=ACT_ADDRESS_PICK;
		}else if(m_pDoc->m_activeType==ACT_BROWSE)
		{
			CString msg;
			ADDRESSINFO ai=m_pDoc->m_arrAddress.GetAt(m_pDoc->m_focusEI.index);
			msg.Format("you clicked a address! name=%s,position:x=%d;y=%d",ai.name,ai.pos.x,ai.pos.y );
//			m_pMapView->MessageBox(msg,"info");
		}
	}
}

BOOL CSTMAddressEventHandle::CanAddressMove()
{
	BOOL ret=TRUE;
	if(m_pDoc->m_arrSel.GetSize()!=1)
		ret=FALSE;
	else 
	{
		ELEINFO ei=m_pDoc->m_arrSel.GetAt(0);
		if(ei.eleType!=ET_ADDRESS||ei.index==-1)
			ret=FALSE;
	}
	return ret;
}

void CSTMAddressEventHandle::DrawAddress(int index)
{
	ADDRESSINFO ai=m_pDoc->m_arrAddress.GetAt(index);
	ELEINFO	ei;
	ei.eleType=ET_ADDRESS;
	ei.index=index;
	ELESTATE state=m_pDoc->GetElementState(ei);//get element state
	COLORREF color;
	switch(state)
	{
	case ES_NORMAL:color=RGB(0,192,192);break;
	case ES_FOCUS:color=RGB(255,255,0);break;
	case ES_SELECTED:color=RGB(255,0,0);break;
	}
	
	POINT	originpoint;
	originpoint=m_pMapView->GetScrollPosition();
	ai.pos.x-=originpoint.x;
	ai.pos.y-=originpoint.y;
	CRect    rc=m_pDoc->CalcAddressRect(ai.pos);
	CDC *pDC=m_pMapView->GetDC();
	pDC->FillSolidRect(&rc,color);
	int mode=pDC->SetBkMode(TRANSPARENT);
	pDC->TextOut(rc.right,rc.top,ai.name,strlen(ai.name));
	pDC->SetBkMode(mode);
	m_pMapView->ReleaseDC(pDC);
}

void CSTMAddressEventHandle::DrawAllAddresses()
{
	for(int i=0;i<m_pDoc->m_arrAddress.GetSize();i++)
		DrawAddress(i);
}

void CSTMAddressEventHandle::OnLButtonDown(UINT nFlags, CPoint point)
{
	//draw new selected cross
	if(m_pDoc->m_focusEI.eleType==ET_ADDRESS &&
		m_pDoc->m_focusEI.index!=-1)
	{
		ELEINFO ei=m_pDoc->m_focusEI;
		m_pDoc->SelectElements(&ei,1);
		DrawAddress(ei.index);
	}
}