gissymble.cpp

一个mapxmobile+gps的小程序,需要先安装mapx mobile

// GISSymble.cpp

#include "stdafx.h"
#include "GISSymble.h"

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

CGISSymble::CGISSymble()
{
	bIsCreated = false;
	m_nWidth=0;
	m_nHeight=0;
}

CGISSymble::~CGISSymble()
{
	m_Bitmap.DeleteObject();
}

BEGIN_MESSAGE_MAP(CGISSymble, CButton)
	//{{AFX_MSG_MAP(CGISSymble)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

void CGISSymble::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct) 
{
	CDC dc;
	dc.Attach(lpDrawItemStruct->hDC );
	DrawBitmaps( &dc );
	dc.Detach();
}

BOOL CGISSymble::LoadBitmap(UINT id)
{
	if(!m_Bitmap.LoadBitmap(id))
	{
		return FALSE;
	}
	
	BITMAP bmpinfo;
	m_Bitmap.GetBitmap(&bmpinfo);
	m_nWidth  = bmpinfo.bmWidth;
	m_nHeight = bmpinfo.bmHeight;
	SetWindowPos(NULL,0, 0, m_nWidth, m_nHeight, SWP_NOMOVE|SWP_NOOWNERZORDER);
	return TRUE;
}

void CGISSymble::DrawBitmaps(CDC *pDC)
{
	CDC memDC;
	memDC.CreateCompatibleDC(pDC);
	CBitmap* old  = memDC.SelectObject(&m_Bitmap);

	pDC->BitBlt(0,0,m_nWidth, m_nHeight, &memDC, 0, 0, SRCCOPY);
	memDC.SelectObject(old);
}

BOOL CGISSymble::Create(CPoint point, CWnd *pParentWnd,UINT mapid)
{
	if (! CButton::Create(NULL, 0x5000000B,CRect( point.x, point.y, point.x, point.y ),pParentWnd,0))
		return false;
	
	return bIsCreated=LoadBitmap(mapid);
}