TnbMfcPressButton.h

[詳解]

#pragma once
#include "TnbMfcCommon.h"
 
 
 
#ifdef _WIN32_WCE
 #error not support "PressButton"
#endif // _WIN32_WCE
 
 
 
//TNB Library
namespace TNB {
namespace MFC {
 
 
 
#ifndef _TnbDOXYGEN //Document作成用シンボル
 #ifndef BN_PUSHED
  #define BN_PUSHED BN_HILITE
 #endif
 #ifndef BN_UNPUSHED
  #define BN_UNPUSHED BN_UNHILITE 
 #endif
#endif //_TnbDOXYGEN
 
 
 
class CPressButton : public CButton
{
    DEFSUPER(CButton);
    COLORREF    m_colorBack;        
    bool        m_boIsPushed;       
 
    void PostCommand(UINT uCmd)
    {
        MFCLIB::SendCommandMessage(this, uCmd);
//      CWnd* pcWnd = GetParent();
//      if ( pcWnd != NULL )
//      {
//          pcWnd->PostMessage(WM_COMMAND, uCmd * 0x10000 | GetDlgCtrlID(), 
//                                              reinterpret_cast<LPARAM>(m_hWnd));
//      }
    }
    virtual BOOL OnCommand(WPARAM wParam, LPARAM lParam)
    {
        return _super::OnCommand(wParam, lParam);
    }
 
    virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
    {
        if ( message == WM_LBUTTONDOWN )
        {
            if ( ! m_boIsPushed )
            {
                m_boIsPushed = true;
                RedrawWindow();
                PostCommand(BN_PUSHED);
            }
            return 0;
        }
        else if ( message == WM_LBUTTONUP )
        {
            if ( m_boIsPushed )
            {
                m_boIsPushed = false;
                RedrawWindow();
                PostCommand(BN_UNPUSHED);
                PostCommand(BN_CLICKED);                
            }
            return 0;
        }
        else if ( message == WM_LBUTTONDBLCLK )
        {
            if ( ! m_boIsPushed )
            {
                PostCommand(BN_PUSHED);
            }
            m_boIsPushed = false;
            RedrawWindow();
            PostCommand(BN_UNPUSHED);
            PostCommand(BN_DOUBLECLICKED);              
            return 0;
        }
        else if ( message == WM_SETFOCUS || message == WM_KILLFOCUS )
        {
            UpdateWindow();
        }
        return _super::WindowProc(message, wParam, lParam);
    }
 
    virtual void PreSubclassWindow(void)
    {
        UINT uiDefBtnSte = _super::GetButtonStyle() & 0xFF;
        if ( uiDefBtnSte == BS_PUSHBUTTON || uiDefBtnSte == BS_DEFPUSHBUTTON )
        {
            _super::SetButtonStyle(BS_AUTOCHECKBOX);
            _super::ModifyStyle(0, BS_OWNERDRAW);
        }
        _super::PreSubclassWindow();
    }
 
    virtual void DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)
    {
        if ( lpDrawItemStruct->CtlType != ODT_BUTTON || lpDrawItemStruct->hwndItem != _super::GetSafeHwnd() )
        {
            return;
        }
        CDC *dc = CDC::FromHandle(lpDrawItemStruct->hDC);
        dc->SaveDC();
        UINT uItemState = lpDrawItemStruct->itemState;
 
        //== ボタンフレーム描画
        UINT uState = DFCS_BUTTONPUSH | 0x0800/*DFCS_TRANSPARENT*/;
        if ( m_boIsPushed )
        {
            uState |= DFCS_PUSHED;
        }
        dc->DrawFrameControl(&(lpDrawItemStruct->rcItem), DFC_BUTTON, uState);
        //===== 内枠FILL
        if ( ToInt(m_colorBack) >= 0 )
        {
            CRect cRect = lpDrawItemStruct->rcItem;
            cRect.DeflateRect(2, 2, 2, 2);
            dc->FillSolidRect(cRect, m_colorBack);
        }
        //== 文字
        CString strText;
        GetWindowText(strText);
        if ( ! strText.IsEmpty() )
        {
            CRect cRect = lpDrawItemStruct->rcItem;
            cRect.DeflateRect(4, 4, 4, 4);
            if ( m_boIsPushed )
            {
                cRect.OffsetRect(1, 1);
            }
            dc->SetBkMode(TRANSPARENT);     // バックカラーは変更なし
            if ( (uItemState & ODS_DISABLED) != 0 )
            {
                dc->SetTextColor(GetSysColor(COLOR_GRAYTEXT));  //グレイ
            }
            dc->DrawText(strText, cRect, DT_CENTER | DT_VCENTER);
        }   
//      //== フォーカス点線
//      if ( ::GetFocus() == m_hWnd )
//      {
//          CRect cRect = lpDrawItemStruct->rcItem;
//          cRect.DeflateRect(3,3,3,3);
//          if ( m_boIsPushed )
//          {
//              cRect.OffsetRect(1,1);
//          }
//          dc->DrawFocusRect(&cRect);
//      }
        dc->RestoreDC(-1);
    }
 
public:
 
    CPressButton(void)
        : m_colorBack(COLORREF(-1))
        , m_boIsPushed(false)
    {
    }
    
    void SetBkColor(COLORREF color = -1)
    {
        m_colorBack = color;
    }
 
    bool IsPushed(void) const
    {
        return m_boIsPushed;
    }
 
    void Push(void)
    {
        PostMessage(WM_LBUTTONDOWN);
    }
 
    void Unpush(void)
    {
        PostMessage(WM_LBUTTONUP);
    }
 
};
 
 
 
}; //MFC
}; //TNB