MFC RadioListBox 单选

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RadioListBox.cpp

#include "SF_RadioListBox.h"#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE[] = __FILE__;#endif/////////////////////////////////////////////////////////////////////////////// CRadioListBox#define ID_EDIT_BOX 1000CRadioListBox::CRadioListBox(){    m_nEditId = -1;}CRadioListBox::~CRadioListBox(){}BEGIN_MESSAGE_MAP( CRadioListBox, CListBox )    //{{AFX_MSG_MAP(CRadioListBox)    ON_WM_CTLCOLOR_REFLECT()    //}}AFX_MSG_MAP    ON_WM_LBUTTONDBLCLK()    ON_WM_LBUTTONDOWN()    ON_WM_CREATE()    ON_EN_KILLFOCUS( ID_EDIT_BOX, OnEnKillfocusEdit )END_MESSAGE_MAP()/////////////////////////////////////////////////////////////////////////////// CRadioListBox message handlersvoid CRadioListBox::DrawItem( LPDRAWITEMSTRUCT lpDrawItemStruct ){    CDC* pDC = CDC::FromHandle( lpDrawItemStruct->hDC );    if ( lpDrawItemStruct->itemID == (UINT)-1 )    {        if ( lpDrawItemStruct->itemAction & ODA_FOCUS )            pDC->DrawFocusRect( &lpDrawItemStruct->rcItem );        return;    }    else    {        int selChange = lpDrawItemStruct->itemAction & ODA_SELECT;        int focusChange = lpDrawItemStruct->itemAction & ODA_FOCUS;        int drawEntire = lpDrawItemStruct->itemAction & ODA_DRAWENTIRE;        if ( selChange || drawEntire )        {            BOOL sel = lpDrawItemStruct->itemState & ODS_SELECTED;            pDC->FillSolidRect( &lpDrawItemStruct->rcItem,                                ::GetSysColor( (GetExStyle()&WS_EX_TRANSPARENT) ? COLOR_BTNFACE : COLOR_WINDOW ) );            int h = lpDrawItemStruct->rcItem.bottom - lpDrawItemStruct->rcItem.top;            CRect rect( lpDrawItemStruct->rcItem.left + 2, lpDrawItemStruct->rcItem.top + 2,                        lpDrawItemStruct->rcItem.left + h - 3, lpDrawItemStruct->rcItem.top + h - 3 );            pDC->DrawFrameControl( &rect, DFC_BUTTON, DFCS_BUTTONRADIO | (sel ? DFCS_CHECKED : 0) );            {                pDC->SetTextColor( COLOR_WINDOWTEXT );                pDC->SetBkMode( TRANSPARENT );                lpDrawItemStruct->rcItem.left += h;                CString str;                GetText( lpDrawItemStruct->itemID, str );                pDC->DrawText( str, &lpDrawItemStruct->rcItem, DT_LEFT | DT_VCENTER );            }        }        {            if ( focusChange || (drawEntire && (lpDrawItemStruct->itemState & ODS_FOCUS)) )                pDC->DrawFocusRect( &lpDrawItemStruct->rcItem );        }    }}HBRUSH CRadioListBox::CtlColor( CDC* pDC, UINT nCtlColor ){    if ( (GetExStyle()&WS_EX_TRANSPARENT) && nCtlColor == CTLCOLOR_LISTBOX )        return (HBRUSH)::GetSysColorBrush( COLOR_BTNFACE );    return NULL;}void CRadioListBox::OnLButtonDblClk( UINT nFlags, CPoint point ){    CListBox::OnLButtonDblClk( nFlags, point );}void CRadioListBox::OnLButtonDown( UINT nFlags, CPoint point ){    CListBox::OnLButtonDown( nFlags, point );    int nCur = GetCurSel();    if ( nCur == LB_ERR )        return;    CRect rcItem;    GetItemRect( nCur, rcItem );    int h = rcItem.bottom - rcItem.top;    rcItem.left += h;    if( rcItem.PtInRect( point ) )        EditStarts( rcItem );}void CRadioListBox::EditStarts(const CRect& rc){    int nCur = GetCurSel();    if ( nCur == LB_ERR )        return;    m_edit.MoveWindow( CRect( rc.left, rc.top, rc.right, rc.bottom + 2 ) );    CString str;    GetText( nCur, str );    m_edit.SetWindowText( str );    m_edit.SetFocus();    m_edit.SetSel( 0, -1, TRUE );    m_edit.ShowWindow( TRUE );    m_nEditId = nCur;}int CRadioListBox::OnCreate( LPCREATESTRUCT lpCreateStruct ){    if ( CListBox::OnCreate( lpCreateStruct ) == -1 )        return -1;    Init();    return 0;}void CRadioListBox::OnEnKillfocusEdit(){    if ( m_edit.IsWindowVisible() == FALSE )    {        m_nEditId = -1;        return;    }    CString str;    m_edit.GetWindowText( str );    m_edit.ShowWindow( FALSE );    if ( str.GetLength() )    {        DeleteString( m_nEditId );        InsertString( m_nEditId, str );        SetCurSel( m_nEditId );    }    m_nEditId = -1;}BOOL CRadioListBox::SubclassDlgItem( UINT nID, CWnd* pParent ){    BOOL bRet = CListBox::SubclassDlgItem( nID, pParent );    Init();    return bRet;}void CRadioListBox::Init(UINT nId /*= -1*/, CWnd* pParentWnd /*= NULL*/){    if ( m_hWnd == NULL )    {        Create(            WS_CHILD | WS_VISIBLE | WS_BORDER | LBS_HASSTRINGS | WS_HSCROLL | WS_VSCROLL | LBS_OWNERDRAWVARIABLE | LBS_WANTKEYBOARDINPUT,            CRect(), pParentWnd, nId );    }    if ( m_edit.m_hWnd == NULL )    {        m_edit.Create( WS_VISIBLE | WS_CHILD | ES_LEFT | ES_AUTOHSCROLL, CRect(), this, 1000 );        m_edit.ModifyStyleEx( 0, WS_EX_CLIENTEDGE );        m_edit.ShowWindow( FALSE );        m_edit.SetFont( this->GetFont() );    }}int CRadioListBox::InsertString( int nIndex, LPCTSTR lpszItem ){    int nRet = CListBox::InsertString( nIndex, lpszItem );    if ( nRet != LB_ERR )    {        SetItemHeight( nRet, (UINT)(GetItemHeight( nRet ) * 1.06) );    }    return nRet;}int CRadioListBox::AddString( LPCTSTR lpszItem ){    int nRet = CListBox::AddString( lpszItem );    if ( nRet != LB_ERR )    {        SetItemHeight( nRet, (UINT)(GetItemHeight( nRet ) * 1.06) );    }    return nRet;}BOOL CRadioListBox::PreTranslateMessage( MSG* pMsg ){    if ( pMsg->message == WM_KEYDOWN && pMsg->wParam == VK_RETURN )    {        if ( ::GetFocus() == m_edit.GetSafeHwnd() )        {            SetFocus();            return TRUE;        }    }    return CListBox::PreTranslateMessage( pMsg );}

RadioListBox.h

#ifndef _RADIOLIST_BOX_H_#define _RADIOLIST_BOX_H_class CRadioListBox : public CListBox{// Constructionpublic:    CRadioListBox();    virtual ~CRadioListBox();    void Init(UINT nId = -1, CWnd* pParentWnd = NULL);// Attributespublic:    int InsertString( int nIndex, LPCTSTR lpszItem );    int AddString( LPCTSTR lpszItem );public:    virtual void DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct);public:    void EditStarts( const CRect& rc );    BOOL SubclassDlgItem( UINT nID, CWnd* pParent );protected:    //{{AFX_MSG(CRadioListBox)    afx_msg HBRUSH CtlColor(CDC* pDC, UINT nCtlColor);    //}}AFX_MSG    DECLARE_MESSAGE_MAP()public:    afx_msg void OnLButtonDblClk(UINT nFlags, CPoint point);    afx_msg void OnLButtonDown( UINT nFlags, CPoint point );    afx_msg int OnCreate( LPCREATESTRUCT lpCreateStruct );    afx_msg void OnEnKillfocusEdit();protected:    CEdit m_edit;    UINT m_nEditId;public:    virtual BOOL PreTranslateMessage( MSG* pMsg );};#endif

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