CBFViewCtrl (BigFile Viewer Controller)

// BFViewCtrlDemoDlg.cpp : implementation file
//

#include "stdafx.h"
#include "BFViewCtrlDemo.h"
#include "BFViewCtrlDemoDlg.h"

#include "afxdlgs.h" // CFileDialog
#include ".\bfviewctrldemodlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


#define ZU_FILESIZE_BYTES	0
#define ZU_FILESIZE_KBYTES	1
#define ZU_FILESIZE_MBYTES	2
#define ZU_FILESIZE_AUTO	3

BOOL MakeSizeString( TCHAR* strOut /*[out]*/, __int64 size , short sFileSizeType , bool addPostFix )
{
	TCHAR strNewSize[50]={0};
	char strSize[25];
	short FilesizeTypeUsed = ZU_FILESIZE_BYTES;

	if( sFileSizeType == ZU_FILESIZE_BYTES )
	{
		FilesizeTypeUsed = ZU_FILESIZE_BYTES;
	}
	else if( sFileSizeType == ZU_FILESIZE_KBYTES )
	{
		size = size / 1024;
		FilesizeTypeUsed = ZU_FILESIZE_KBYTES;
	}
	else if( sFileSizeType == ZU_FILESIZE_MBYTES )
	{
		size = (size / 1024 )/ 1024;
		FilesizeTypeUsed = ZU_FILESIZE_MBYTES;
	}
	else if( sFileSizeType == ZU_FILESIZE_AUTO )
	{
		if( size < 1024*10 )
		{
			FilesizeTypeUsed = ZU_FILESIZE_BYTES;
		}
		else if( size < 1024*1100)
		{
			FilesizeTypeUsed = ZU_FILESIZE_KBYTES;
			size = size / 1024;
		}
		else 
		{
			FilesizeTypeUsed = ZU_FILESIZE_MBYTES;
			size = (size / 1024)/1024;
		}
	}


	_i64toa(size , strSize , 10);
	int cnt = strlen(strSize);

	// who many spaces there will be ( "123 321 123" = 3spaces  )
	int spaces = cnt/3;

	// 4 - 3 = 1 , 1 
	int gidx = cnt - (3*spaces);

	long np = 0;

	for( int i = 0 ; i < cnt ; i++ )
	{
		if( gidx == 0 )
		{
			strNewSize[np]=_T(' ');
			gidx=3;
			np++;
		}
		gidx--;
		strNewSize[np]=strSize[i];
		np++;
	}
	//	CString retval;
	//	retval = strNewSize;
	if( addPostFix )
	{
		if( FilesizeTypeUsed == ZU_FILESIZE_BYTES )
			_tcscat( strNewSize , _T(" B") );
		else if( FilesizeTypeUsed == ZU_FILESIZE_KBYTES )
			_tcscat( strNewSize , _T(" K") );
		else if( FilesizeTypeUsed == ZU_FILESIZE_MBYTES )
			_tcscat( strNewSize , _T(" M") );
	}

	_tcscpy( strOut , strNewSize );
	return TRUE;
}


// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	enum { IDD = IDD_ABOUTBOX };

	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support

// Implementation
protected:
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()


// CBFViewCtrlDemoDlg dialog



CBFViewCtrlDemoDlg::CBFViewCtrlDemoDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CBFViewCtrlDemoDlg::IDD, pParent)
{
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CBFViewCtrlDemoDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);

	DDX_Control(pDX, IDC_BFV , m_Viewer );
}

BEGIN_MESSAGE_MAP(CBFViewCtrlDemoDlg, CDialog)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
	ON_WM_SIZE()
	
	ON_WM_INITMENUPOPUP()

	ON_COMMAND(ID_FILE_OPEN, OnFileOpen)
	ON_COMMAND(ID_FILE_CLOSE, OnFileClose)
	ON_COMMAND(ID_EDIT_COPYTOCLIPBOARD, OnEditCopytoclipboard)
	ON_COMMAND(ID_EDIT_COPYTOFILE, OnEditCopytofile)
	ON_COMMAND(ID_EDIT_SELECTALL, OnEditSelectall)
	ON_COMMAND(ID_VIEW_ASCII, OnViewAscii)
	ON_COMMAND(ID_VIEW_UNICODE, OnViewUnicode)
	ON_COMMAND(ID_VIEW_BINARY, OnViewBinary)
	ON_UPDATE_COMMAND_UI(ID_VIEW_ASCII, OnUpdateViewAscii)
	ON_UPDATE_COMMAND_UI(ID_VIEW_UNICODE, OnUpdateViewUnicode)
	ON_UPDATE_COMMAND_UI(ID_VIEW_BINARY, OnUpdateViewBinary)

	ON_NOTIFY(  BFVN_OPEN , IDC_BFV , OnUpdateStatus ) 
	ON_NOTIFY(  BFVN_RELOADED , IDC_BFV , OnUpdateStatus ) 

	ON_COMMAND(ID_COLOR_STYLE1, OnColorStyle1)
	ON_COMMAND(ID_COLOR_STYLE2, OnColorStyle2)
	ON_COMMAND(ID_COLOR_STYLE3, OnColorStyle3)
	ON_COMMAND(ID_OPTIONS_AUTORELOAD, OnOptionsAutoreload)
	ON_COMMAND(ID_OPTIONS_FONT, OnOptionsFont)
	ON_COMMAND(ID_COLOR_STYLE4, OnColorStyle4)
	ON_UPDATE_COMMAND_UI(ID_OPTIONS_AUTORELOAD, OnUpdateOptionsAutoreload)
END_MESSAGE_MAP()


// CBFViewCtrlDemoDlg message handlers

BOOL CBFViewCtrlDemoDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon

	m_bar.Create(this); //We create the status bar
	m_bar.SetIndicators(indicators,2); //Set the number of panes 

	CRect rect;
	GetClientRect(&rect);
	//Size the two panes
	m_bar.SetPaneInfo(0,ID_INDICATOR_SIZE, SBPS_NORMAL,rect.Width()-100);      
	m_bar.SetPaneInfo(1,ID_INDICATOR_TYPE, SBPS_STRETCH ,0);

	//This is where we actually draw it on the screen
	RepositionBars(AFX_IDW_CONTROLBAR_FIRST,AFX_IDW_CONTROLBAR_LAST,ID_INDICATOR_TYPE);

	m_bar.SetPaneText( 0 , _T("") );
	m_bar.SetPaneText( 1 , _T("") );

	m_Viewer.DragAcceptFiles( TRUE );
	CRect rcView;
	CRect rcClient;

	m_Viewer.GetClientRect( &rcView );
	m_Viewer.ClientToScreen( rcView );
	GetClientRect( rcClient );
	ClientToScreen( rcClient );
	
	m_rcViewCtrl.top = rcView.top - rcClient.top;
	m_rcViewCtrl.bottom = rcClient.bottom - rcView.bottom;
	m_rcViewCtrl.left = rcView.left - rcClient.left;
	m_rcViewCtrl.right= rcClient.right - rcView.right;

    return TRUE;  // return TRUE  unless you set the focus to a control
}

void CBFViewCtrlDemoDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CBFViewCtrlDemoDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this function to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CBFViewCtrlDemoDlg::OnQueryDragIcon()
{
	return static_cast<HCURSOR>(m_hIcon);
}

void CBFViewCtrlDemoDlg::OnSize(UINT nType, int cx, int cy)
{
	CDialog::OnSize(nType, cx, cy);

	RepositionBars(AFX_IDW_CONTROLBAR_FIRST, AFX_IDW_CONTROLBAR_LAST, ID_INDICATOR_TYPE);

	CRect rect;
	GetClientRect( rect );
	rect.top += m_rcViewCtrl.top;
	rect.bottom -= m_rcViewCtrl.bottom;
	rect.left =+ m_rcViewCtrl.left;
	rect.right -= m_rcViewCtrl.right;
	if( m_Viewer.GetSafeHwnd() != 0 )
		m_Viewer.MoveWindow( rect.left , rect.top , rect.Width() , rect.Height() , TRUE );
	
}
void CBFViewCtrlDemoDlg::OnFileOpen()
{
	
	CFileDialog FileDlg( TRUE , _T("txt") );
	if( FileDlg.DoModal() == IDOK )
	{
		CString strFilename = FileDlg.GetFileName();
		m_Viewer.OpenFile( strFilename );
	}
}

void CBFViewCtrlDemoDlg::OnFileClose()
{
	PostMessage( WM_CLOSE );
}

void CBFViewCtrlDemoDlg::OnEditCopytoclipboard()
{
	m_Viewer.DoCopy();
}

void CBFViewCtrlDemoDlg::OnEditCopytofile()
{
	m_Viewer.DoCopy( TRUE );
}

void CBFViewCtrlDemoDlg::OnEditSelectall()
{
	m_Viewer.SetSelection( 0 , -1 );
}

void CBFViewCtrlDemoDlg::OnViewAscii()
{
	if( m_Viewer.GetViewMode() != TEXTTYPE_ASCII )
		m_Viewer.ChangeViewMode( TEXTTYPE_ASCII );

}

void CBFViewCtrlDemoDlg::OnViewUnicode()
{
	if( m_Viewer.GetViewMode() != TEXTTYPE_UNICODE )
		m_Viewer.ChangeViewMode( TEXTTYPE_UNICODE );
}

void CBFViewCtrlDemoDlg::OnViewBinary()
{
	if( m_Viewer.GetViewMode() != TEXTTYPE_BINARY )
		m_Viewer.ChangeViewMode( TEXTTYPE_BINARY);
}

void CBFViewCtrlDemoDlg::OnUpdateViewAscii(CCmdUI *pCmdUI)
{
	if( m_Viewer.GetViewMode() == TEXTTYPE_ASCII )
		pCmdUI->SetCheck(TRUE);
	else
		pCmdUI->SetCheck(FALSE);

}

void CBFViewCtrlDemoDlg::OnUpdateViewUnicode(CCmdUI *pCmdUI)
{
	if( m_Viewer.GetViewMode() == TEXTTYPE_UNICODE )
		pCmdUI->SetCheck(TRUE);
	else
		pCmdUI->SetCheck(FALSE);
}

void CBFViewCtrlDemoDlg::OnUpdateViewBinary(CCmdUI *pCmdUI)
{
	if( m_Viewer.GetViewMode() == TEXTTYPE_BINARY )
		pCmdUI->SetCheck(TRUE);
	else
		pCmdUI->SetCheck(FALSE);
}

void CBFViewCtrlDemoDlg::OnInitMenuPopup(CMenu* pPopupMenu, UINT /*nIndex*/, BOOL /*bSysMenu*/)
{
	//	CDialog::OnInitMenuPopup(pPopupMenu, nIndex, bSysMenu);
	ASSERT(pPopupMenu != NULL);
	// Check the enabled state of various menu items.

	CCmdUI state;
	state.m_pMenu = pPopupMenu;
	ASSERT(state.m_pOther == NULL);
	ASSERT(state.m_pParentMenu == NULL);

	// Determine if menu is popup in top-level menu and set m_pOther to
	// it if so (m_pParentMenu == NULL indicates that it is secondary popup).
	HMENU hParentMenu;
	if (AfxGetThreadState()->m_hTrackingMenu == pPopupMenu->m_hMenu)
		state.m_pParentMenu = pPopupMenu;    // Parent == child for tracking popup.
	else if ((hParentMenu = ::GetMenu(m_hWnd)) != NULL)
	{
		CWnd* pParent = this;
		// Child windows don't have menus--need to go to the top!
		if (pParent != NULL &&
			(hParentMenu = ::GetMenu(pParent->m_hWnd)) != NULL)
		{
			int nIndexMax = ::GetMenuItemCount(hParentMenu);
			for (int nIndex = 0; nIndex < nIndexMax; nIndex++)
			{
				if (::GetSubMenu(hParentMenu, nIndex) == pPopupMenu->m_hMenu)
				{
					// When popup is found, m_pParentMenu is containing menu.
					state.m_pParentMenu = CMenu::FromHandle(hParentMenu);
					break;
				}
			}
		}
	}

	state.m_nIndexMax = pPopupMenu->GetMenuItemCount();
	for (state.m_nIndex = 0; state.m_nIndex < state.m_nIndexMax;
		state.m_nIndex++)
	{
		state.m_nID = pPopupMenu->GetMenuItemID(state.m_nIndex);
		if (state.m_nID == 0)
			continue; // Menu separator or invalid cmd - ignore it.

		ASSERT(state.m_pOther == NULL);
		ASSERT(state.m_pMenu != NULL);
		if (state.m_nID == (UINT)-1)
		{
			// Possibly a popup menu, route to first item of that popup.
			state.m_pSubMenu = pPopupMenu->GetSubMenu(state.m_nIndex);
			if (state.m_pSubMenu == NULL ||
				(state.m_nID = state.m_pSubMenu->GetMenuItemID(0)) == 0 ||
				state.m_nID == (UINT)-1)
			{
				continue;       // First item of popup can't be routed to.
			}
			state.DoUpdate(this, TRUE);   // Popups are never auto disabled.
		}
		else
		{
			// Normal menu item.
			// Auto enable/disable if frame window has m_bAutoMenuEnable
			// set and command is _not_ a system command.
			state.m_pSubMenu = NULL;
			state.DoUpdate(this, FALSE);
		}

		// Adjust for menu deletions and additions.
		UINT nCount = pPopupMenu->GetMenuItemCount();
		if (nCount < state.m_nIndexMax)
		{
			state.m_nIndex -= (state.m_nIndexMax - nCount);
			while (state.m_nIndex < nCount &&
				pPopupMenu->GetMenuItemID(state.m_nIndex) == state.m_nID)
			{
				state.m_nIndex++;
			}
		}
		state.m_nIndexMax = nCount;
	}

}
void CBFViewCtrlDemoDlg::UpdateStatus()
{
	TCHAR strSize[256];
	CString strTmp;

	if( MakeSizeString( strSize , m_Viewer.GetTotalSize() , ZU_FILESIZE_BYTES , FALSE ) )
	{
		strTmp.Format( _T("%s bytes") , strSize );
	}
	else
		strTmp.Format( _T("Unknown") );

	m_bar.SetPaneText( 0 , strTmp );

	strTmp = m_Viewer.GetViewModeAsString();

	m_bar.SetPaneText( 1 , strTmp );

	CString Str;
	Str = _T("BFViewCtrl Demo - [");
	Str += m_Viewer.GetFileName();
	Str += _T("]");
	SetWindowText( Str );

}

void CBFViewCtrlDemoDlg::OnUpdateStatus(NMHDR * /*pNotifyStruct*/, LRESULT* /*pResult*/) 
{
	UpdateStatus();
}


BOOL CBFViewCtrlDemoDlg::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Add your specialized code here and/or call the base class
	cs.style |= WS_OVERLAPPED;
	cs.dwExStyle |= WS_EX_APPWINDOW;
	return CDialog::PreCreateWindow(cs);
}

void CBFViewCtrlDemoDlg::OnColorStyle1()
{
	m_Viewer.SetColor( RGB(255,255,255) , RGB(0,0,0) , RGB(0,0,0) , RGB(255,255,255), TRUE  );
}

void CBFViewCtrlDemoDlg::OnColorStyle2()
{
	m_Viewer.SetColor( RGB(255,128,64) , RGB(2,15,125) , RGB(0,0,255) , RGB(120,200,195) , TRUE );
}

void CBFViewCtrlDemoDlg::OnColorStyle3()
{
	m_Viewer.SetColor( RGB(255,255,0) , RGB(0,0,0) , RGB(128,0,64) , RGB(255,0,0) , TRUE );
}
void CBFViewCtrlDemoDlg::OnColorStyle4()
{
	m_Viewer.SetColor( RGB(0,0,0) , RGB(255,255,255) , RGB(255,255,255) , RGB(0,0,0), TRUE  );
}

void CBFViewCtrlDemoDlg::OnOptionsAutoreload()
{
	if( m_Viewer.IsAutoReload() )
		m_Viewer.SetReloadChkTimer( 0 );
	else
		m_Viewer.SetReloadChkTimer( 2500 ); // check for file changes every 2.5s 
}
void CBFViewCtrlDemoDlg::OnUpdateOptionsAutoreload(CCmdUI *pCmdUI)
{
	if( m_Viewer.IsAutoReload() )
		pCmdUI->SetCheck(TRUE);
	else
		pCmdUI->SetCheck(FALSE);


}
void CBFViewCtrlDemoDlg::OnOptionsFont()
{
	m_Viewer.ShowFontDlg();
	//CFont* pFont = m_Viewer.GetFont();
}