showgifview.cpp

在 WINCE下 显示 GIF图片 GIF89A类

// ShowGifView.cpp : implementation of the CShowGifView class
//

#include "stdafx.h"
#include "ShowGif.h"

#include "ShowGifDoc.h"
#include "ShowGifView.h"

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

/////////////////////////////////////////////////////////////////////////////
// CShowGifView

IMPLEMENT_DYNCREATE(CShowGifView, CScrollView)

BEGIN_MESSAGE_MAP(CShowGifView, CScrollView)
	//{{AFX_MSG_MAP(CShowGifView)
	ON_WM_CREATE()
	ON_WM_DESTROY()
	ON_WM_TIMER()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CShowGifView construction/destruction

CShowGifView::CShowGifView()
{
	// TODO: add construction code here

}

CShowGifView::~CShowGifView()
{
}

BOOL CShowGifView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CScrollView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CShowGifView drawing

void CShowGifView::OnDraw(CDC* pDC)
{
	CShowGifDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);

	// TODO: add draw code for native data here
	CSize Size;CRect Rect;
	int x=0,y=0;

	Size=pDoc->GetSize();
	GetClientRect(&Rect);

	if (Size.cx<Rect.Size().cx) x=(Rect.Size().cx-Size.cx)/2;
	if (Size.cy<Rect.Size().cy) y=(Rect.Size().cy-Size.cy)/2;

	pDoc->m_Image.Stretch(pDC->m_hDC,x,y,Size.cx,Size.cy,
				0,0,Size.cx,Size.cy);
}

void CShowGifView::OnInitialUpdate()
{
	CScrollView::OnInitialUpdate();
	CSize sizeTotal;
	// TODO: calculate the total size of this view
	sizeTotal.cx = sizeTotal.cy = 100;
	SetScrollSizes(MM_TEXT, sizeTotal);
}

/////////////////////////////////////////////////////////////////////////////
// CShowGifView diagnostics

#ifdef _DEBUG
void CShowGifView::AssertValid() const
{
	CScrollView::AssertValid();
}

void CShowGifView::Dump(CDumpContext& dc) const
{
	CScrollView::Dump(dc);
}

CShowGifDoc* CShowGifView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CShowGifDoc)));
	return (CShowGifDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CShowGifView message handlers

int CShowGifView::OnCreate(LPCREATESTRUCT lpCreateStruct) 
{
	if (CScrollView::OnCreate(lpCreateStruct) == -1)
		return -1;
	
	SetTimer(1,3,NULL);
	
	return 0;
}

void CShowGifView::OnDestroy() 
{
	CScrollView::OnDestroy();
	
	KillTimer(1);
}

void CShowGifView::OnTimer(UINT nIDEvent) 
{
	GetDocument()->UpdateContents();
	
	CScrollView::OnTimer(nIDEvent);
}