www.pudn.com > NetPaw.rar > NetPawView.cpp

// NetPawView.cpp : CNetPawView 类的实现 
// 
 
#include "stdafx.h" 
#include "NetPaw.h" 
#include "NetPawDoc.h" 
#include "mainfrm.h" 
#include "memdc.h" 
#include "downloadfile.h" 
#include "fileview.h" 
#include ".\netpawview.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#endif 
 
 
// CNetPawView 
IMPLEMENT_DYNCREATE(CNetPawView, CScrollView) 
 
BEGIN_MESSAGE_MAP(CNetPawView, CScrollView) 
	ON_WM_ERASEBKGND() 
END_MESSAGE_MAP() 
 
// CNetPawView 构造/析构 
 
CNetPawView::CNetPawView() 
	: m_nTotalCells(0) 
	, m_nLineCells(0) 
	, m_nCellWidth(10) 
	, m_nCellHeight(0) 
{ 
	// TODO: 在此处添加构造代码 
	m_clrBackgrnd = GetSysColor(COLOR_BTNFACE); // gray 
 
	SetScrollSizes(MM_TEXT, CSize(0, 0)); 
} 
 
CNetPawView::~CNetPawView() 
{ 
} 
 
BOOL CNetPawView::PreCreateWindow(CREATESTRUCT& cs) 
{ 
	// TODO: 在此处通过修改 CREATESTRUCT cs 来修改窗口类或 
	// 样式 
	return CScrollView::PreCreateWindow(cs); 
} 
 
void CNetPawView::OnInitialUpdate() 
{ 
	CScrollView::OnInitialUpdate(); 
 
	// 将位图加入图像列表中，为画图做准备 
	CBitmap bitmap; 
	bitmap.LoadBitmap(IDB_BMPMETER); 
	m_ilMeters.Create(10, 11, ILC_MASK|ILC_COLOR32, 3, 1); 
	m_ilMeters.Add(&bitmap, RGB(255, 0, 255)); 
 
	// 获取位图中单个图标的尺寸 
	IMAGEINFO imgInfo; 
	ZeroMemory(&imgInfo, sizeof(IMAGEINFO)); 
	m_ilMeters.GetImageInfo(0, &imgInfo); 
	CRect rect = imgInfo.rcImage; 
	m_nCellWidth = rect.Width(); 
	m_nCellHeight = rect.Height(); 
} 
 
 
// CNetPawView 诊断 
#ifdef _DEBUG 
void CNetPawView::AssertValid() const 
{ 
	CScrollView::AssertValid(); 
} 
 
void CNetPawView::Dump(CDumpContext& dc) const 
{ 
	CScrollView::Dump(dc); 
} 
 
CNetPawDoc* CNetPawView::GetDocument() const // 非调试版本是内联的 
{ 
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CNetPawDoc))); 
	return (CNetPawDoc*)m_pDocument; 
} 
#endif //_DEBUG 
 
 
// CNetPawView 消息处理程序 
void CNetPawView::DrawMeter(CDC* pDC) 
{ 
	CRect rect; 
	pDC->GetClipBox(&rect); 
 
	// fill back ground color, should at first (brush is logical?) 
	CBrush brush; 
	brush.CreateSolidBrush(m_clrBackgrnd); 
	pDC->FillRect(&rect, &brush); 
	brush.DeleteObject(); 
 
	// download file length is unknown, just return 
	if( GetDocument()->GetSelFileLen() <= 0 ) 
	{ 
		return; 
	} 
 
	// change the coordinates to device viewpoint 
	pDC->LPtoDP(&rect); 
 
	// compute drawing parameters 
	ComputeCells(rect); 
 
	// draw Back cell and done cell 
	if( m_nLineCells > 0 ) 
	{ 
		DrawBackCells(pDC, rect); 
		DrawCell(pDC, rect); 
	} 
} 
 
void CNetPawView::ComputeCells(CRect& rect) 
{ 
	// 计算绘图图幅的长度，由下载文件长度和显示图标的大小确定 
	m_nLineCells = rect.Width() / m_nCellWidth; 
 
	if( m_nLineCells > 0 ) 
	{ 
		m_nTotalCells = (int)( (GetDocument()->GetSelFileLen() + 1023) / 1024 ); 
		int nHeight = (m_nTotalCells + m_nLineCells - 1) / m_nLineCells	* m_nCellHeight; 
 
		SetScrollSizes(MM_TEXT, CSize(rect.Width(), nHeight)); 
	} 
} 
 
BOOL CNetPawView::OnEraseBkgnd(CDC* pDC) 
{ 
	// should do nothing here 
	return TRUE; //CScrollView::OnEraseBkgnd(pDC); 
} 
 
void CNetPawView::DrawBackCells(CDC* pDC, CRect& rectDC) 
{ 
	CPoint point; 
 
	// draw whole/partial cells 
	point.x = rectDC.left; 
	point.y = rectDC.top; 
 
	for(int nCell = 0; nCell < m_nTotalCells; nCell++) 
	{ 
		if( point.x + m_nCellWidth > rectDC.right ) 
		{ 
			point.x = 0; 
			point.y += m_nCellHeight; 
		} 
 
		m_ilMeters.Draw(pDC, 0, point, ILD_NORMAL); 
		point.x += m_nCellWidth; 
	} 
} 
 
void CNetPawView::DrawCell(CDC* pDC, CRect& rectDC) 
{ 
	CNetPawDoc *pDoc = GetDocument(); 
	CDownloadFile *pDlFile = pDoc->GetSelDownFile(); 
 
	if( pDlFile ) 
	{ 
		pDlFile->DrawDownldFile(pDC, rectDC, this); 
	} 
} 
 
void CNetPawView::OnDraw(CDC* pDC) 
{ 
	// draw cells in memory dc 
	CMemDC mDC(pDC); 
 
	switch( GetCurrentClassID() ) 
	{ 
	case FOLDER_DOWNLDED: 
		DrawDone(&mDC); 
		break; 
 
	case FOLDER_FAVORITES: 
		DrawFavorites(&mDC); 
		break; 
 
	case FOLDER_DOWNLDING: 
	default: 
		DrawMeter(&mDC); 
		break; 
	} 
} 
 
void CNetPawView::DrawOneSegment(CDC* pDC, CRect& rectDC, int nFromCell, int nToCell, int nDoneCells) 
{ 
	CPoint point; 
 
	// draw whole/partial cells 
	point.x = rectDC.left + (nFromCell % m_nLineCells) * m_nCellWidth; 
	point.y = rectDC.top + (nFromCell / m_nLineCells) * m_nCellHeight; 
 
	for(int nCell = 0; nCell < nDoneCells; nCell++) 
	{ 
		if( point.x + m_nCellWidth > rectDC.right ) 
		{ 
			point.x = 0; 
			point.y += m_nCellHeight; 
		} 
 
		// the last one use other color 
		if( ( nCell < (nDoneCells - 1) ) || ( nCell >= (nToCell - nFromCell - 1) ) ) 
		{ 
			m_ilMeters.Draw(pDC, 1, point, ILD_NORMAL); 
		} 
		else 
		{ 
			m_ilMeters.Draw(pDC, 2, point, ILD_NORMAL); 
		} 
 
		point.x += m_nCellWidth; 
	} 
} 
 
void CNetPawView::OnUpdate(CView* /*pSender*/, LPARAM /*lHint*/, CObject* /*pHint*/) 
{ 
	// TODO: 在此添加专用代码和/或调用基类 
	Invalidate(); 
} 
 
int CNetPawView::GetCurrentClassID(void) 
{ 
	int nID = FOLDER_DOWNLDING; 
 
	CMainFrame *pFrame = (CMainFrame *)AfxGetMainWnd(); 
	CFileView *pView = pFrame->GetRightPane(); 
	if( pView ) 
	{ 
		nID = pView->m_nShowClassID; 
	} 
 
	return nID; 
} 
 
void CNetPawView::DrawDone(CDC* pDC) 
{ 
	RECT rect; 
	pDC->GetClipBox(&rect); 
 
	// fill back ground color, should at first (brush is logical?) 
	CBrush brush; 
	brush.CreateSolidBrush(GetSysColor(COLOR_BTNHIGHLIGHT)); 
	pDC->FillRect(&rect, &brush); 
	brush.DeleteObject(); 
 
	pDC->SetBkMode(TRANSPARENT); 
 
	DONEITEM_S *pDoneIt = GetDocument()->GetSelDownloaded(); 
	if( pDoneIt ) 
	{ 
		pDC->SetTextColor(RGB(0, 0, 255)); 
		pDC->TextOut(rect.left + 5, rect.top + 10, pDoneIt->szWebInfo, (int)_tcslen(pDoneIt->szWebInfo)); 
	} 
} 
 
void CNetPawView::DrawFavorites(CDC* pDC) 
{ 
	RECT rect; 
	pDC->GetClipBox(&rect); 
 
	// fill back ground color, should at first (brush is logical?) 
	CBrush brush; 
	brush.CreateSolidBrush(GetSysColor(COLOR_BTNHIGHLIGHT)); 
	pDC->FillRect(&rect, &brush); 
	brush.DeleteObject(); 
}