TnbThemeStylePartsDrawer.h

[詳解]

#pragma once
#include <UxTheme.h>
#include "TnbPartsDrawable.h"
#include "TnbDynamicFunc.h"
 
 
 
#ifndef _TnbDOXYGEN //Document作成用シンボル
 
#ifndef VSCLASS_BUTTON
 // BUTTON class parts and states 
 #define VSCLASS_BUTTON L"BUTTON"
#endif // VSCLASS_BUTTON
 
#if ! defined(TMSCHEMA_H) && ! defined(__VSSTYLE_H__)
 
enum BUTTONPARTS {
    BP_PUSHBUTTON = 1,
    BP_RADIOBUTTON = 2,
    BP_CHECKBOX = 3,
    BP_GROUPBOX = 4,
    BP_USERBUTTON = 5,
};
 
enum PUSHBUTTONSTATES {
    PBS_NORMAL = 1,
    PBS_HOT = 2,
    PBS_PRESSED = 3,
    PBS_DISABLED = 4,
    PBS_DEFAULTED = 5,
};
 
enum RADIOBUTTONSTATES {
    RBS_UNCHECKEDNORMAL = 1,
    RBS_UNCHECKEDHOT = 2,
    RBS_UNCHECKEDPRESSED = 3,
    RBS_UNCHECKEDDISABLED = 4,
    RBS_CHECKEDNORMAL = 5,
    RBS_CHECKEDHOT = 6,
    RBS_CHECKEDPRESSED = 7,
    RBS_CHECKEDDISABLED = 8,
};
 
enum CHECKBOXSTATES {
    CBS_UNCHECKEDNORMAL = 1,
    CBS_UNCHECKEDHOT = 2,
    CBS_UNCHECKEDPRESSED = 3,
    CBS_UNCHECKEDDISABLED = 4,
    CBS_CHECKEDNORMAL = 5,
    CBS_CHECKEDHOT = 6,
    CBS_CHECKEDPRESSED = 7,
    CBS_CHECKEDDISABLED = 8,
    CBS_MIXEDNORMAL = 9,
    CBS_MIXEDHOT = 10,
    CBS_MIXEDPRESSED = 11,
    CBS_MIXEDDISABLED = 12,
};
 
enum GROUPBOXSTATES {
    GBS_NORMAL = 1,
    GBS_DISABLED = 2,
};
 
#endif //TMSCHEMA_H
 
#endif //_TnbDOXYGEN
 
 
 
//TNB Library
namespace TNB {
namespace MFC {
 
 
 
#ifndef _TnbDOXYGEN //Document作成用シンボル
 _SELECTANY bool s_isCheckedThemeDll = false; 
#endif
 
 
 
class CThemeStylePartsDrawer : public CStandardPartsDrawer 
{
    DEFSUPER(CStandardPartsDrawer);
    #define _TnbTHEMEDLL_NAME "UxTheme.dll"
    mutable HTHEME  m_hTheme;
    typedef HRESULT(WINAPI *P_DrawThemeBackground)(HTHEME, HDC, int, int, const RECT *, const RECT *);
    CDynamicFuncT<P_DrawThemeBackground> m_bkgd;
    bool m_CheckOpen(HDC hdc) const
    {
        if ( m_hTheme == NULL && IsThemeActive() )
        {
            m_hTheme = OpenThemeData(::WindowFromDC(hdc), VSCLASS_BUTTON);
        }
        return m_hTheme != NULL;
    }
public:
 
    CThemeStylePartsDrawer(void) : m_hTheme(NULL)
    {
        if ( ! s_isCheckedThemeDll )
        {
            if ( ! m_bkgd.LoadFunc(_TnbTHEMEDLL_NAME, "DrawThemeBackground") )
            {
                s_isCheckedThemeDll = true;
            }
        }
    }
 
    ~CThemeStylePartsDrawer(void)
    {
        ThemeChanged();
    }
 
    void ThemeChanged(void)
    {
        if ( m_hTheme != NULL )
        {
            CloseThemeData(m_hTheme);
            m_hTheme = NULL;
        }
    }
 
    virtual bool DrawButtonControl(HDC hdc, LPRECT _lprc, UINT uState) const
    {
        if ( ! m_bkgd.HasFunc() || ! m_CheckOpen(hdc) )
        {
            #ifdef _TnbTHEME_ClassicOriginal
                uState &= ~DFCS_HOT;
            #endif
            return _super::DrawButtonControl(hdc, _lprc, uState);
        }
        int iPartId = -9;
        int iStateId = -9;
        switch ( uState & 0x001F )
        {
        case DFCS_BUTTONPUSH:
            iPartId = BP_PUSHBUTTON;
            iStateId = PBS_NORMAL; 
            break;
        case DFCS_BUTTONCHECK:
            iPartId = BP_CHECKBOX;
            if ( (uState & DFCS_CHECKED) == 0 )
            {
                iStateId = CBS_UNCHECKEDNORMAL;
            }
            else
            {
                iStateId = CBS_CHECKEDNORMAL;
            }
            break;
        case DFCS_BUTTON3STATE:
            iPartId = BP_CHECKBOX;
            if ( (uState & DFCS_CHECKED) == 0 )
            {
                iStateId = CBS_UNCHECKEDNORMAL;
            }
            else
            {
                iStateId = CBS_MIXEDNORMAL;
            }
            break;
        case DFCS_BUTTONRADIO:
            iPartId = BP_RADIOBUTTON;
            if ( (uState & DFCS_CHECKED) == 0 )
            {
                iStateId = RBS_UNCHECKEDNORMAL;
            }
            else
            {
                iStateId = RBS_CHECKEDNORMAL;
            }
            break;
        }
        if ( iPartId < 0 || iStateId < 0 )
        {
            return false;
        }
        if ( (uState & DFCS_HOT) != 0 )
        {
            iStateId += 1;
        }
        else if ( (uState & DFCS_PUSHED) != 0 )
        {
            iStateId += 2;
        }
        else
        if ( (uState & DFCS_INACTIVE) != 0 )
        {
            iStateId += 3;
        }
        //
        switch ( uState & 0xFF )
        {
        case DFCS_BUTTON3STATE:
        case DFCS_BUTTONCHECK:
        case DFCS_BUTTONRADIO:
            _lprc->right = _lprc->left + 13;
            _lprc->bottom = _lprc->top + 13;
            break;
        }
        if ( hdc == NULL ) { return true; }
        HRESULT r = m_bkgd()(m_hTheme, hdc, iPartId, iStateId, _lprc, _lprc);
        if ( r != S_OK )
        {
            CloseThemeData(m_hTheme);
            m_hTheme = NULL;
            if ( ! m_CheckOpen(hdc) )
            {
                #ifdef _TnbTHEME_ClassicOriginal
                    uState &= ~DFCS_HOT;
                #endif
                return _super::DrawButtonControl(hdc, _lprc, uState);
            }
            r = m_bkgd()(m_hTheme, hdc, iPartId, iStateId, _lprc, _lprc);
        }
        if ( r == S_OK && m_hTheme != NULL && iPartId == BP_PUSHBUTTON )
        {
            POINT po;
            GetEdgeOffset(po);
            _lprc->left += po.x;
            _lprc->right -= po.x;
            _lprc->top += po.y;
            _lprc->bottom -= po.y;
        }
        return r == S_OK;
    }
 
 
    //--------------------------
 
 
    static bool IsThemeActive(void)
    {
        if ( ! s_isCheckedThemeDll )
        {
            try
            {
                typedef BOOL(WINAPI *P)(void);
                return !! CDynamicFuncT<P>(_TnbTHEMEDLL_NAME, "IsThemeActive")()();
            }
            catch(CNullPointerException& e)
            {
                ASSERT0(false, "CThemeStylePartsDrawer", "APIが見つかりません。");
                e.OnCatch();
                s_isCheckedThemeDll = true;
            }
        }
        return false;
    }
 
    static HTHEME OpenThemeData(HWND hWnd, LPCWSTR pszClassList)
    {
        typedef HTHEME(WINAPI *P)(HWND, LPCWSTR);
        try
        {
            return CDynamicFuncT<P>(_TnbTHEMEDLL_NAME, "OpenThemeData")()(hWnd, pszClassList);
        }
        catch(CNullPointerException& e)
        {
            ASSERT0(false, "CThemeStylePartsDrawer", "APIが見つかりません。");
            e.OnCatch();
        }
        return NULL;
    }
 
    static HRESULT CloseThemeData(HTHEME hTheme)
    {
        try
        {
            typedef HRESULT(WINAPI *P)(HTHEME);
            return CDynamicFuncT<P>(_TnbTHEMEDLL_NAME, "CloseThemeData")()(hTheme);
        }
        catch(CNullPointerException& e)
        {
            ASSERT0(false, "CThemeStylePartsDrawer", "APIが見つかりません。");
            e.OnCatch();
        }
        return E_FAIL;
    }
 
    static HRESULT DrawThemeBackground(HTHEME hTheme, HDC hdc, int iPartId, int iStateId, const RECT *pRect, OPTIONAL const RECT *pClipRect)
    {
        try
        {
            return CDynamicFuncT<P_DrawThemeBackground>(_TnbTHEMEDLL_NAME, "DrawThemeBackground")()(hTheme, hdc, iPartId, iStateId, pRect, pClipRect);
        }
        catch(CNullPointerException& e)
        {
            ASSERT0(false, "CThemeStylePartsDrawer", "APIが見つかりません。");
            e.OnCatch();
        }
        return E_FAIL;
    }
};
 
 
 
}; //MFC
}; //TNB