TnbFontHandle.h

[詳解]

#pragma once
#include "TnbPointerHandle.h"
 
 
 
//TNB Library
namespace TNB
{
 
 
 
#ifndef _TnbDOXYGEN //Document作成用シンボル
 
struct TPhDeleteFontHandle
{
    void operator()(HFONT h) 
    {
      #ifdef _DEBUG
        if ( ::GetObjectType(h) == NULL )
        {
            ASSERT0( false, "~CFontHandle", "先に HFONTが破棄されてしまっています。" );
        }
        else if ( ! ::DeleteObject(h) )
        {
            ASSERT1( false, "~CFontHandle", "HFONT の破棄に失敗しました。\ncode = %d", ::GetLastError() );
        }
      #else
        ::DeleteObject(h);
      #endif
    }
};
 
#endif // _TnbDOXYGEN
 
 
 
class CFontHandle : public CPointerHandleBaseT<HFONT, TPhDeleteFontHandle, NULL> 
{
    typedef CPointerHandleBaseT<HFONT, TPhDeleteFontHandle, NULL> _super;   
    DEFSUPER(_super);
public:
 
    CFontHandle(void) : _super() 
    {
    }
 
    CFontHandle(const CFontHandle& other) : _super(other) 
    {
    }
 
    CFontHandle(HFONT hFont) : _super(hFont) 
    {
    }
 
    CFontHandle(const LOGFONT& attr)
    {
        HFONT f = ::CreateFontIndirect(&attr);
        _super::operator=(f);
    }
 
    bool Set(const LOGFONT& attr)
    {
        HFONT f = ::CreateFontIndirect(&attr);
        _super::operator=(f);
        return ! _super::IsNull();
    }
 
    bool Set(const LOGFONT& attr, HDC dc)
    {
        HDC hDC = dc;
        if ( hDC == NULL )
        {
            hDC = ::GetDC(NULL);
        }
        LOGFONT lf = attr;
        POINT pt;
        pt.y = ::GetDeviceCaps(hDC, LOGPIXELSY) * lf.lfHeight;
        pt.y /= 720;    // 72 points/inch, 10 decipoints/point
        ::DPtoLP(hDC, &pt, 1);
        POINT ptOrg = { 0, 0 };
        ::DPtoLP(hDC, &ptOrg, 1);
        lf.lfHeight = -abs(pt.y - ptOrg.y);
        if ( dc == NULL )
        {
            ::ReleaseDC(NULL, hDC);
        }
        return Set(lf);
    }
 
    bool Set(int pointSize, LPCTSTR lpszFaceName, HDC dc = NULL)
    {
        LOGFONT attr = { 0 };
        attr.lfCharSet = DEFAULT_CHARSET;
        #ifndef _UNICODE
            attr.lfCharSet = SHIFTJIS_CHARSET;
        #endif
        attr.lfHeight = pointSize;
        lstrcpyn(attr.lfFaceName, lpszFaceName, countof(attr.lfFaceName));
        return Set(attr, dc);
    }
 
    bool Set(HWND hWnd, double mul = 1.0)
    {
        HFONT h = reinterpret_cast<HFONT>(::SendMessage(hWnd, WM_GETFONT, 0, 0));
        if ( h == NULL )
        {
            h = static_cast<HFONT>(::GetStockObject(DEFAULT_GUI_FONT));
        }
        return SetClone(h, mul);
    }
 
    bool SetAsBold(HFONT hFont)
    {
        Null();
        LOGFONT attr;
        if ( GetAttributes(attr, hFont) )
        {
            attr.lfWeight = FW_BOLD;
            return Set(attr);
        }
        return false;
    }
 
    bool SetClone(HFONT hFont, double mul = 1.0)
    {
        Null();
        LOGFONT attr;
        if ( GetAttributes(attr, hFont) )
        {
            attr.lfHeight = static_cast<long>(attr.lfHeight * mul);
            attr.lfWidth = static_cast<long>(attr.lfWidth * mul); 
            return Set(attr);
        }
        return false;
    }
 
    #ifndef _WIN32_WCE
 
    bool SetSystemCaptionFont(void)
    {
        NONCLIENTMETRICS ncm;
        VERIFY( ms_GetNonClientMetrics(ncm) );
        #ifndef _UNICODE
            ncm.lfCaptionFont.lfCharSet = SHIFTJIS_CHARSET;
        #endif
        return Set(ncm.lfCaptionFont);  //タイトルバーのLOGFONT
    }
 
    bool SetSystemMenuFont(void)
    {
        NONCLIENTMETRICS ncm;
        VERIFY( ms_GetNonClientMetrics(ncm) );
        #ifndef _UNICODE
            ncm.lfMenuFont.lfCharSet = SHIFTJIS_CHARSET;
        #endif
        return Set(ncm.lfMenuFont);  //メニューのLOGFONT
    }
 
    #endif //_WIN32_WCE
 
    HFONT Detach(void)
    {
        LOGFONT attr;
        if ( GetAttributes(attr) )
        {
            HFONT f = ::CreateFontIndirect(&attr);
            Null();
            return f;
        }
        return NULL;
    }
 
    bool GetAttributes(LOGFONT& _attr) const
    {
        HFONT f = *this;
        return GetAttributes(_attr, f);
    }
 
    void SetToWindow(HWND hWnd, bool isRedraw = true) const
    {
        ASSERT(::IsWindow(hWnd));
        HFONT f = *this;
        ::SendMessage(hWnd, WM_SETFONT, (WPARAM)f, isRedraw);
    }
 
    static bool GetAttributes(LOGFONT& _attr, HFONT hFont)
    {
        return ::GetObject(hFont, sizeof(LOGFONT), &_attr) != 0;
    }
 
private:
 
    #ifndef _WIN32_WCE
 
    static  bool ms_GetNonClientMetrics(NONCLIENTMETRICS& _ncm)
    {
        _ncm.cbSize = sizeof(NONCLIENTMETRICS);
        bool r = !! ::SystemParametersInfo(SPI_GETNONCLIENTMETRICS, _ncm.cbSize, &_ncm, 0);
        #if(WINVER >= 0x0600)
            if ( ! r )
            {
                _ncm.cbSize -= sizeof(int);
                r = !! ::SystemParametersInfo(SPI_GETNONCLIENTMETRICS, _ncm.cbSize, &_ncm, 0);
            }
        #endif
        return r;
    }
 
    #endif
};
 
 
 
};//TNB