// ImageView.cpp : CImageView 類的實現(xiàn)
//

#include "stdafx.h"
#include "Image.h"

#include "ImageDoc.h"
#include "ImageView.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// CImageView

IMPLEMENT_DYNCREATE(CImageView, CScrollView)

BEGIN_MESSAGE_MAP(CImageView, CScrollView)
	// 標(biāo)準(zhǔn)打印命令
	ON_COMMAND(ID_FILE_PRINT, &CScrollView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, &CScrollView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, &CScrollView::OnFilePrintPreview)
	ON_WM_SIZE()
END_MESSAGE_MAP()

// CImageView 構(gòu)造/析構(gòu)

CImageView::CImageView()
{
	// TODO: 在此處添加構(gòu)造代碼
	init = false;

}

CImageView::~CImageView()
{
}

BOOL CImageView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: 在此處通過修改
	//  CREATESTRUCT cs 來修改窗口類或樣式

	return CScrollView::PreCreateWindow(cs);
}

// CImageView 繪制

void CImageView::OnDraw(CDC* pDC)
{
	CImageDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	if (!pDoc)
		return;

	// TODO: 在此處為本機數(shù)據(jù)添加繪制代碼
	if (!pDoc->img.IsNull()) {
		RECT rect;
		GetClientRect(&rect);
		if (pDoc->img.GetWidth() > rect.right) {
			rect.bottom = (int)(((float)pDoc->img.GetHeight() * rect.right)/pDoc->img.GetWidth() + 0.5);
			pDC->SetStretchBltMode(HALFTONE);
			pDoc->img.Draw(pDC->m_hDC, rect);
		}
		else pDoc->img.Draw(pDC->m_hDC, 0, 0);
	}
}

void CImageView::OnInitialUpdate()
{
	CScrollView::OnInitialUpdate();

	//CSize sizeTotal;
	// TODO: 計算此視圖的合計大小
	//sizeTotal.cx = sizeTotal.cy = 100;
	//SetScrollSizes(MM_TEXT, sizeTotal);
	CImageDoc* pDoc = GetDocument();
	if(pDoc->img.IsNull()) SetScrollSizes(MM_TEXT, CSize(100, 100));
	else {
		w = pDoc->img.GetWidth(); h = pDoc->img.GetHeight();
		RECT crect;
		GetClientRect(&crect);
		SetScrollSizes(MM_TEXT, CSize(w, h), CSize(crect.right, crect.bottom), CSize(10, 10));
		//GetParentFrame()->RecalcLayout();
		ResizeParentToFit( );
		init = true;
	}

}


// CImageView 打印

BOOL CImageView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// 默認準(zhǔn)備
	return DoPreparePrinting(pInfo);
}

void CImageView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: 添加額外的打印前進行的初始化過程
}

void CImageView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: 添加打印后進行的清除過程
}


// CImageView 診斷

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

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

CImageDoc* CImageView::GetDocument() const // 非調(diào)試版本是內(nèi)聯(lián)的
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CImageDoc)));
	return (CImageDoc*)m_pDocument;
}
#endif //_DEBUG


// CImageView 消息處理程序

void CImageView::OnSize(UINT nType, int cx, int cy)
{
	CScrollView::OnSize(nType, cx, cy);

	// TODO: 在此處添加消息處理程序代碼
CImageDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	if (!pDoc) return;
	if (init) SetScrollSizes(MM_TEXT, CSize(w, h), CSize(cx, cy), CSize(10,10));

}