dmsv2/Dms/GridCell.cpp

#include "pch.h"
#include "GridCell.h"
#include "InPlaceEdit.h"

IMPLEMENT_DYNCREATE(CGridCell, CGridCellBase)
IMPLEMENT_DYNCREATE(CGridDefaultCell, CGridCell)

/////////////////////////////////////////////////////////////////////////////
// GridCell

CGridCell::CGridCell()
{
    m_plfFont = NULL;
    CGridCell::Reset();
}

CGridCell::~CGridCell()
{
    delete m_plfFont;
}

/////////////////////////////////////////////////////////////////////////////
// GridCell Attributes
//Used for merge cells,remove const
//by Huang Wei
void CGridCell::operator=(CGridCell& cell)
{
    if (this != &cell) CGridCellBase::operator=(cell);
}

void CGridCell::Reset()
{
    CGridCellBase::Reset();

    m_strText.Empty();
    m_nImage = -1;
    m_pGrid = NULL;
    m_bEditing = FALSE;
    m_pEditWnd = NULL;

    m_nFormat = (DWORD)-1;       // Use default from CGridDefaultCell
    m_crBkClr = CLR_DEFAULT;     // Background colour (or CLR_DEFAULT)
    m_crFgClr = CLR_DEFAULT;     // Forground colour (or CLR_DEFAULT)
    m_nMargin = (UINT)-1;        // Use default from CGridDefaultCell

    m_nBorder = 0;
    m_crBorderClr = CLR_DEFAULT;

    delete m_plfFont;
    m_plfFont = NULL;            // Cell font
}

void CGridCell::SetFont(const LOGFONT* plf)
{
    if (plf == NULL)
    {
        delete m_plfFont;
        m_plfFont = NULL;
    }
    else
    {
        if (!m_plfFont)
            m_plfFont = new LOGFONT;
        if (m_plfFont)
            memcpy(m_plfFont, plf, sizeof(LOGFONT));
    }
}

LOGFONT* CGridCell::GetFont() const
{
    if (m_plfFont == NULL)
    {
        CGridDefaultCell *pDefaultCell = (CGridDefaultCell*)GetDefaultCell();
        if (!pDefaultCell)
            return NULL;

        return pDefaultCell->GetFont();
    }

    return m_plfFont;
}

CFont* CGridCell::GetFontObject() const
{
    // If the default font is specified, use the default cell implementation
    if (m_plfFont == NULL)
    {
        CGridDefaultCell *pDefaultCell = (CGridDefaultCell*)GetDefaultCell();
        if (!pDefaultCell)
            return NULL;

        return pDefaultCell->GetFontObject();
    }
    else
    {
        static CFont Font;
        Font.DeleteObject();
        Font.CreateFontIndirect(m_plfFont);
        return &Font;
    }
}

DWORD CGridCell::GetFormat() const
{
    if (m_nFormat == (DWORD)-1)
    {
        CGridDefaultCell *pDefaultCell = (CGridDefaultCell*)GetDefaultCell();
        if (!pDefaultCell)
            return 0;

        return pDefaultCell->GetFormat();
    }

    return m_nFormat;
}

UINT CGridCell::GetMargin() const
{
    if (m_nMargin == (UINT)-1)
    {
        CGridDefaultCell *pDefaultCell = (CGridDefaultCell*)GetDefaultCell();
        if (!pDefaultCell)
            return 0;

        return pDefaultCell->GetMargin();
    }

    return m_nMargin;
}

/////////////////////////////////////////////////////////////////////////////
// GridCell Operations

BOOL CGridCell::Edit(int nRow, int nCol, CRect rect, CPoint /* point */, UINT nID, UINT nChar)
{
    if (m_bEditing)
    {
        if (m_pEditWnd)
            m_pEditWnd->SendMessage(WM_CHAR, nChar);
    }
    else
    {
        DWORD dwStyle = ES_LEFT;
        if (GetFormat() & DT_RIGHT)
            dwStyle = ES_RIGHT;
        else if (GetFormat() & DT_CENTER)
            dwStyle = ES_CENTER;

        m_bEditing = TRUE;

        // InPlaceEdit auto-deletes itself
        CGridCtrl* pGrid = GetGrid();
        m_pEditWnd = new CInPlaceEdit((CWnd*)pGrid, rect, dwStyle, nID, nRow, nCol, GetText(), nChar);
    }
    return TRUE;
}

void CGridCell::EndEdit()
{
    if (m_pEditWnd)
        ((CInPlaceEdit*)m_pEditWnd)->EndEdit();
}

void CGridCell::OnEndEdit()
{
    m_bEditing = FALSE;
    m_pEditWnd = NULL;
}

/////////////////////////////////////////////////////////////////////////////
// CGridDefaultCell

CGridDefaultCell::CGridDefaultCell()
{
#ifdef _WIN32_WCE
    m_nFormat = DT_LEFT | DT_VCENTER | DT_SINGLELINE | DT_NOPREFIX;
#else
    m_nFormat = DT_LEFT | DT_VCENTER | DT_SINGLELINE | DT_NOPREFIX | DT_END_ELLIPSIS;
#endif
    m_crFgClr = CLR_DEFAULT;
    m_crBkClr = CLR_DEFAULT;
    m_Size = CSize(30, 10);
    m_dwStyle = 0;
    m_crBorderClr = CLR_DEFAULT;
    m_nBorder = 0;

#ifdef _WIN32_WCE
    LOGFONT lf;
    GetObject(GetStockObject(SYSTEM_FONT), sizeof(LOGFONT), &lf);
    SetFont(&lf);
#else // not CE
    NONCLIENTMETRICS ncm;
    ncm.cbSize = sizeof(NONCLIENTMETRICS);
    VERIFY(SystemParametersInfo(SPI_GETNONCLIENTMETRICS, sizeof(NONCLIENTMETRICS), &ncm, 0));
    SetFont(&(ncm.lfMessageFont));
#endif
}

CGridDefaultCell::~CGridDefaultCell()
{
    m_Font.DeleteObject();
}

void CGridDefaultCell::SetFont(const LOGFONT* plf)
{
    ASSERT(plf);

    if (!plf) return;

    m_Font.DeleteObject();
    m_Font.CreateFontIndirect(plf);

    CGridCell::SetFont(plf);

    // Get the font size and hence the default cell size
    CDC* pDC = CDC::FromHandle(::GetDC(NULL));
    if (pDC)
    {
        CFont* pOldFont = pDC->SelectObject(&m_Font);

        SetMargin(pDC->GetTextExtent(_T(" "), 1).cx);
        m_Size = pDC->GetTextExtent(_T(" XXXXXXXXXXXX "), 14);
        m_Size.cy = (m_Size.cy * 3) / 2;

        pDC->SelectObject(pOldFont);
        ReleaseDC(NULL, pDC->GetSafeHdc());
    }
    else
    {
        SetMargin(3);
        m_Size = CSize(40, 16);
    }
}

LOGFONT* CGridDefaultCell::GetFont() const
{
    ASSERT(m_plfFont);  // This is the default - it CAN'T be NULL!
    return m_plfFont;
}

CFont* CGridDefaultCell::GetFontObject() const
{
    ASSERT(m_Font.GetSafeHandle());
    return (CFont*)&m_Font;
}