dirsplitter.cpp

c++系统开发实例精粹内附的80例源代码 环境:windows2000,c++6.0

//////////////////////////////////////////////////////////////////////
// FileFury
// Copyright (c) 2000 Tenebril Incorporated
// All rights reserved.
//
// This source code is governed by the Tenebril open source
// license (http://www.tenebril.com/developers/opensource/license.html)
//
// For more information on this and other open source applications,
// visit the Tenebril OpenSource page:
//       http://www.tenebril.com/developers/opensource
//
//////////////////////////////////////////////////////////////////////

// DirSplitter.cpp : implementation file
//

#include "stdafx.h"
#include "Oscar.h"
#include "DirSplitter.h"

#include "DirListView.h"
#include "DirTreeView.h"

#include "NetworkFileSystem.h"

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

/////////////////////////////////////////////////////////////////////////////
// CDirSplitter

// IMPLEMENT_DYNCREATE(CDirSplitter, CSplitterWnd)

CDirSplitter::CDirSplitter()
{
	m_bHasInit = false;
	m_bHasPanes = FALSE;
	m_pFileSystem = NULL;
}

CDirSplitter::~CDirSplitter()
{
	if(m_pFileSystem)
		delete m_pFileSystem;
}

BEGIN_MESSAGE_MAP(CDirSplitter, CSplitterWnd)
	//{{AFX_MSG_MAP(CDirSplitter)
	ON_WM_CREATE()
	ON_WM_MOUSEWHEEL()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDirSplitter message handlers

afx_msg int CDirSplitter::OnCreate( LPCREATESTRUCT lpCreateStruct )
{
	int iRet = CSplitterWnd::OnCreate(lpCreateStruct);
	
	return iRet;
}

BOOL CDirSplitter::OnMouseWheel(UINT fFlags, short zDelta, CPoint point)
{
	BOOL bRetVal = FALSE;
	int row;
	int col;

	CScrollBar* pBar;
	CWnd* pPane;
	CScrollView* pView;
	int nOldPos;

	for (row = 0; row < m_nRows; row++)
	{
		for (col = 0; col < m_nCols; col++)
		{
			pPane = GetPane(row, col);

			// This used to check; we don't want this, it's too restrictive
			// pView = STATIC_DOWNCAST(CScrollView, pPane);

			pView = (CScrollView *)pPane;

			if (pView != NULL)
			{
				pBar = pView->GetScrollBarCtrl(SB_VERT);
				if (pBar == NULL)
				{
					pBar = pView->GetScrollBarCtrl(SB_HORZ);
					if (pBar == NULL)
						continue;
				}

				nOldPos = pBar->GetScrollPos();
				if (pView->DoMouseWheel(fFlags, zDelta, point))
				{
					bRetVal = TRUE;
				}
				if (col < m_nCols -1)
					pBar->SetScrollPos(nOldPos, FALSE);
			}
		}
	}

	return TRUE;
}

void CDirSplitter::SetupPanes(int nSysType, LPCTSTR cszTargetMachine,
							  CCreateContext* pContext)
{
	CRect rectClient;
	CWnd *pParentWnd = GetParent();

	// We don't have a defined client area yet
	ASSERT(pParentWnd);
	pParentWnd->GetClientRect(&rectClient);

	switch(nSysType)
	{
	case 0: default:
		m_pFileSystem = new CFileSystem;
		break;

	case 1:
		m_pFileSystem = new CNetworkFileSystem(cszTargetMachine);
		break;
	}

	// Get the zeroth column width.
	COscarApp *pApp = (COscarApp *)AfxGetApp();
	ASSERT(pApp);
	CSettingsArchive *pArchive = pApp->GetArchive();
	ASSERT(pArchive);
	int nZeroColumnWidth = pArchive->m_arch1.nExplorerWidth;
	if(nZeroColumnWidth < 30) nZeroColumnWidth = 30;

	SetRowInfo(0, rectClient.Height(), 10);
	SetColumnInfo(0, nZeroColumnWidth, 10);
	SetColumnInfo(1, rectClient.Width() - nZeroColumnWidth, 10);

	// Setup the splitter's panes
	if(!CreateView(0, 0, RUNTIME_CLASS(CDirTreeView), 
		CSize(nZeroColumnWidth, rectClient.Height()), 
		pContext))
	{
		TRACE0("Failed to create view 0\n");
		return;
	}

	if(!CreateView(0, 1, RUNTIME_CLASS(CDirListView), 
		CSize(rectClient.Width() - nZeroColumnWidth, rectClient.Height()), 
		pContext))
	{
		TRACE0("Failed to create view 1\n");
		return;
	}

	m_bHasInit = true;
	m_bHasPanes = true;
	m_strDirectory = CString(_T("C:\\"));

	// Initialize the tree view
	CDirTreeView *TreeView = (CDirTreeView *)GetPane(0, 0);
	if(!TreeView)
	{
		TRACE0("Failed to get view 0\n");
		return;
	}
	TreeView->AllowReload(TRUE);
	TreeView->DisplayTree(NULL);

	// Initialize the list view
	CDirListView *ListView = (CDirListView *)GetPane(0, 1);
	if(!ListView)
	{
		TRACE0("Failed to get view 1\n");
		return;
	}

	ListView->DisplayList("C:\\");
	ListView->AllowReload(TRUE);   // The view type set will handle it.

	return;
}

void CDirSplitter::SetDirectory(LPCTSTR strDirectory, BOOL bForceUpdate)
{
	CDirListView *pListView;
	CDirTreeView *pTreeView;
	CString cszDirectory = strDirectory;

	// Show the wait cursor.
	CWaitCursor waitCursor;

	// Check to see if the string length is zero.
	CString strLenCheck = strDirectory;
	if(strLenCheck.GetLength() == 0)
	{
		ASSERT(0);
		return;
	}

	m_strDirectory = strDirectory;

	pListView = (CDirListView *)GetPane(0, 1);
	pTreeView = (CDirTreeView *)GetPane(0, 0);

	if(!pListView || !pTreeView)
		return;

	// Make sure we have a directory name; not just a colon ending it.
	if(cszDirectory.GetAt(cszDirectory.GetLength() - 1) != _T('\\'))
		cszDirectory += _T('\\');

	// We need to massage our input, which might be in the 8.3 character
	// format (which is unsupported by some of our functions)
	CString stClearPath = m_pFileSystem->GetFullPathName(cszDirectory);
	pTreeView->SetSelPath(stClearPath);
	pListView->DisplayList(stClearPath, bForceUpdate);

	return;	
}

void CDirSplitter::UpdateListDir(LPCTSTR strDirectory)
{
	CDirListView *pListView;

	pListView = (CDirListView *)GetPane(0, 1);
	if(!pListView)
		return;

	// No redundant updates
	if(m_strDirectory == CString(strDirectory))
		return;

	m_strDirectory = strDirectory;

	pListView->DisplayList(strDirectory);
	return;
}

void CDirSplitter::Refresh(BOOL bRefreshTree)
{
	SetDirectory(m_strDirectory, TRUE);
	if(bRefreshTree)
	{
		CDirTreeView *pTreeView = (CDirTreeView *)GetPane(0, 0);
		if(!pTreeView)
			return;

		pTreeView->DisplayTree(NULL);
		pTreeView->SetSelPath(m_strDirectory);
	}
}

void CDirSplitter::GetColumnInfo(int col, int & cxCur, int & czMin)
{
	if(m_bHasPanes)
	{
		CSplitterWnd::GetColumnInfo(col, cxCur, czMin);
		return;
	}

	cxCur = -1;
	czMin = -1;
}

CWnd *CDirSplitter::GetPane(int row, int col)
{
	if(m_bHasPanes)
		return CSplitterWnd::GetPane(row, col);

	return NULL;
}