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            HBITMAP CButtonST::CreateBitmapMask(HBITMAP hSourceBitmap, DWORD dwWidth, DWORD dwHeight, COLORREF crTransColor)
            {
                HBITMAP        hMask                    = NULL;
                HDC            hdcSrc                    = NULL;
                HDC            hdcDest                    = NULL;
                HBITMAP        hbmSrcT                    = NULL;
                HBITMAP        hbmDestT                = NULL;
                COLORREF    crSaveBk;
                COLORREF    crSaveDestText;

                hMask             = ::CreateBitmap(dwWidth, dwHeight, 1, 1, NULL);
                            if (hMask == NULL)    return NULL;

                hdcSrc                = ::CreateCompatibleDC(NULL);
                hdcDest                = ::CreateCompatibleDC(NULL);

                hbmSrcT             = (HBITMAP)::SelectObject(hdcSrc, hSourceBitmap);
                hbmDestT             = (HBITMAP)::SelectObject(hdcDest, hMask);

                crSaveBk             = ::SetBkColor(hdcSrc, crTransColor);

                ::BitBlt(hdcDest,             0, 0, dwWidth, dwHeight, hdcSrc, 0, 0, SRCCOPY);

                crSaveDestText             = ::SetTextColor(hdcSrc, RGB(255, 255, 255));
                ::SetBkColor(hdcSrc,RGB(            0, 0, 0));

                ::BitBlt(hdcSrc,             0, 0, dwWidth, dwHeight, hdcDest, 0, 0, SRCAND);

                SetTextColor(hdcDest, crSaveDestText);

                ::SetBkColor(hdcSrc, crSaveBk);
                ::SelectObject(hdcSrc, hbmSrcT);
                ::SelectObject(hdcDest, hbmDestT);

                ::DeleteDC(hdcSrc);
                ::DeleteDC(hdcDest);

                            return hMask;
            }             // End of CreateBitmapMask

            //
            // Parameters:
            //        [IN]    bHasTitle
            //                TRUE if the button has a text
            //        [IN]    rpItem
            //                A pointer to a RECT structure indicating the allowed paint area
            //        [IN/OUT]rpTitle
            //                A pointer to a CRect object indicating the paint area reserved for the
            //                text. This structure will be modified if necessary.
            //        [IN]    bIsPressed
            //                TRUE if the button is currently pressed
            //        [IN]    dwWidth
            //                Width of the image (icon or bitmap)
            //        [IN]    dwHeight
            //                Height of the image (icon or bitmap)
            //        [OUT]    rpImage
            //                A pointer to a CRect object that will receive the area available to the image
            //
            void CButtonST::PrepareImageRect(BOOL bHasTitle, RECT* rpItem, CRect* rpTitle, BOOL bIsPressed, DWORD dwWidth, DWORD dwHeight, CRect* rpImage)
            {
                CRect rBtn;

                rpImage            ->CopyRect(rpItem);

                            switch (m_byAlign)
                            {
                                case ST_ALIGN_HORIZ:
                                    if (bHasTitle == FALSE)
                                    {
                                        // Center image horizontally
                            rpImage->left += ((rpImage->Width() - (long)dwWidth)/2);
                        }
                                    else
                                    {
                                        // Image must be placed just inside the focus rect
                            rpImage->left += m_ptImageOrg.x;  
                            rpTitle            ->left += dwWidth + m_ptImageOrg.x;
                        }
                                    // Center image vertically
                        rpImage->top += ((rpImage->Height() - (long)dwHeight)/2);
                                    break;

                                case ST_ALIGN_HORIZ_RIGHT:
                        GetClientRect(            &rBtn);
                                    if (bHasTitle == FALSE)
                                    {
                                        // Center image horizontally
                            rpImage->left += ((rpImage->Width() - (long)dwWidth)/2);
                        }
                                    else
                                    {
                                        // Image must be placed just inside the focus rect
                            rpTitle->right = rpTitle->Width() - dwWidth - m_ptImageOrg.x;
                            rpTitle            ->left = m_ptImageOrg.x;
                            rpImage            ->left = rBtn.right - dwWidth - m_ptImageOrg.x;
                                        // Center image vertically
                            rpImage->top += ((rpImage->Height() - (long)dwHeight)/2);
                        }
                                    break;
                    
                                case ST_ALIGN_VERT:
                                    // Center image horizontally
                        rpImage->left += ((rpImage->Width() - (long)dwWidth)/2);
                                    if (bHasTitle == FALSE)
                                    {
                                        // Center image vertically
                            rpImage->top += ((rpImage->Height() - (long)dwHeight)/2);           
                        }
                                    else
                                    {
                            rpImage            ->top = m_ptImageOrg.y;
                            rpTitle            ->top += dwHeight;
                        }
                                    break;

                                case ST_ALIGN_OVERLAP:
                                    break;
                }             // switch
                
                            // If button is pressed then press image also
                if (bIsPressed && m_bIsCheckBox == FALSE)
                    rpImage            ->OffsetRect(m_ptPressedOffset.x, m_ptPressedOffset.y);
            }             // End of PrepareImageRect

            void CButtonST::DrawTheIcon(CDC* pDC, BOOL bHasTitle, RECT* rpItem, CRect* rpCaption, BOOL bIsPressed, BOOL bIsDisabled)
            {
                BYTE        byIndex                    = 0;

                            // Select the icon to use
                if ((m_bIsCheckBox && bIsPressed) || (!m_bIsCheckBox && (bIsPressed || m_bMouseOnButton)))
                    byIndex             = 0;
                            else
                    byIndex             = (m_csIcons[1].hIcon == NULL ? 0 : 1);

                CRect    rImage;
                PrepareImageRect(bHasTitle, rpItem, rpCaption, bIsPressed, m_csIcons[byIndex].dwWidth, m_csIcons[byIndex].dwHeight,             &rImage);

                            // Ole'!
                pDC->DrawState(    rImage.TopLeft(),
                                rImage.Size(), 
                                m_csIcons[byIndex].hIcon,
                                (bIsDisabled             ? DSS_DISABLED : DSS_NORMAL), 
                                (CBrush            *)NULL);
            }             // End of DrawTheIcon

            void CButtonST::DrawTheBitmap(CDC* pDC, BOOL bHasTitle, RECT* rpItem, CRect* rpCaption, BOOL bIsPressed, BOOL bIsDisabled)
            {
                HDC            hdcBmpMem                = NULL;
                HBITMAP        hbmOldBmp                = NULL;
                HDC            hdcMem                    = NULL;
                HBITMAP        hbmT                    = NULL;

                BYTE        byIndex                    = 0;

                            // Select the bitmap to use
                if ((m_bIsCheckBox && bIsPressed) || (!m_bIsCheckBox && (bIsPressed || m_bMouseOnButton)))
                    byIndex             = 0;
                            else
                    byIndex             = (m_csBitmaps[1].hBitmap == NULL ? 0 : 1);

                CRect    rImage;
                PrepareImageRect(bHasTitle, rpItem, rpCaption, bIsPressed, m_csBitmaps[byIndex].dwWidth, m_csBitmaps[byIndex].dwHeight,             &rImage);

                hdcBmpMem             = ::CreateCompatibleDC(pDC->m_hDC);

                hbmOldBmp             = (HBITMAP)::SelectObject(hdcBmpMem, m_csBitmaps[byIndex].hBitmap);

                hdcMem             = ::CreateCompatibleDC(NULL);

                hbmT             = (HBITMAP)::SelectObject(hdcMem, m_csBitmaps[byIndex].hMask);

                            if (bIsDisabled && m_bShowDisabledBitmap)
                            {
                    HDC        hDC             = NULL;
                    HBITMAP    hBitmap             = NULL;

                    hDC             = ::CreateCompatibleDC(pDC->m_hDC);
                    hBitmap             = ::CreateCompatibleBitmap(pDC->m_hDC, m_csBitmaps[byIndex].dwWidth, m_csBitmaps[byIndex].dwHeight);
                    HBITMAP    hOldBmp2             = (HBITMAP)::SelectObject(hDC, hBitmap);

                    RECT    rRect;
                    rRect.left             = 0;
                    rRect.top             = 0;
                    rRect.right             = rImage.right + 1;
                    rRect.bottom             = rImage.bottom + 1;
                    ::FillRect(hDC,             &rRect, (HBRUSH)RGB(255, 255, 255));

                    COLORREF crOldColor             = ::SetBkColor(hDC, RGB(255,255,255));

                    ::BitBlt(hDC,             0, 0, m_csBitmaps[byIndex].dwWidth, m_csBitmaps[byIndex].dwHeight, hdcMem, 0, 0, SRCAND);
                    ::BitBlt(hDC,             0, 0, m_csBitmaps[byIndex].dwWidth, m_csBitmaps[byIndex].dwHeight, hdcBmpMem, 0, 0, SRCPAINT);

                    ::SetBkColor(hDC, crOldColor);
                    ::SelectObject(hDC, hOldBmp2);
                    ::DeleteDC(hDC);

                    pDC            ->DrawState(    CPoint(rImage.left/*+1*/, rImage.top), 
                                    CSize(m_csBitmaps[byIndex].dwWidth, m_csBitmaps[byIndex].dwHeight), 
                                    hBitmap, DST_BITMAP             | DSS_DISABLED);

                    ::DeleteObject(hBitmap);
                }             // if
                else
                            {
                    ::BitBlt(pDC            ->m_hDC, rImage.left, rImage.top, m_csBitmaps[byIndex].dwWidth, m_csBitmaps[byIndex].dwHeight, hdcMem, 0, 0, SRCAND);

                    ::BitBlt(pDC            ->m_hDC, rImage.left, rImage.top, m_csBitmaps[byIndex].dwWidth, m_csBitmaps[byIndex].dwHeight, hdcBmpMem, 0, 0, SRCPAINT);
                }             // else

                ::SelectObject(hdcMem, hbmT);
                ::DeleteDC(hdcMem);

                ::SelectObject(hdcBmpMem, hbmOldBmp);
                ::DeleteDC(hdcBmpMem);
            }             // End of DrawTheBitmap

            void CButtonST::DrawTheText(CDC* pDC, LPCTSTR lpszText, RECT* rpItem, CRect* rpCaption, BOOL bIsPressed, BOOL bIsDisabled)
            {
                            // Draw the button's title
                            // If button is pressed then "press" title also
                if (m_bIsPressed && m_bIsCheckBox == FALSE)
                    rpCaption            ->OffsetRect(m_ptPressedOffset.x, m_ptPressedOffset.y);

                            // ONLY FOR DEBUG 
                            //CBrush brBtnShadow(RGB(255, 0, 0));
                            //pDC->FrameRect(rCaption, &brBtnShadow);

                            // Center text
                CRect centerRect = rpCaption;
                pDC            ->DrawText(lpszText, -1, rpCaption, DT_WORDBREAK | DT_CENTER | DT_CALCRECT);
                rpCaption            ->OffsetRect((centerRect.Width() - rpCaption->Width())/2, (centerRect.Height() - rpCaption->Height())/2);
                            /* RFU
                rpCaption->OffsetRect(0, (centerRect.Height() - rpCaption->Height())/2);
                rpCaption->OffsetRect((centerRect.Width() - rpCaption->Width())-4, (centerRect.Height() - rpCaption->Height())/2);
                            */

                pDC            ->SetBkMode(TRANSPARENT);
                            /*
                pDC->DrawState(rCaption->TopLeft(), rCaption->Size(), (LPCTSTR)sTitle, (bIsDisabled ? DSS_DISABLED : DSS_NORMAL), 
                                TRUE, 0, (CBrush*)NULL);
                            */
                            if (m_bIsDisabled)
                            {
                    rpCaption            ->OffsetRect(1, 1);
                    pDC            ->SetTextColor(::GetSysColor(COLOR_3DHILIGHT));
                    pDC            ->DrawText(lpszText, -1, rpCaption, DT_WORDBREAK | DT_CENTER);
                    rpCaption            ->OffsetRect(-1, -1);
                    pDC            ->SetTextColor(::GetSysColor(COLOR_3DSHADOW));
                    pDC            ->DrawText(lpszText, -1, rpCaption, DT_WORDBREAK | DT_CENTER);
                }             // if
                else
                            {
                                if (m_bMouseOnButton || m_bIsPressed) 
                                {
                        pDC            ->SetTextColor(m_crColors[BTNST_COLOR_FG_IN]);
                        pDC            ->SetBkColor(m_crColors[BTNST_COLOR_BK_IN]);
                    }             // if
                    else 
                                {
                                    if (m_bIsFocused)
                                    { 
                            pDC            ->SetTextColor(m_crColors[BTNST_COLOR_FG_FOCUS]); 
                            pDC            ->SetBkColor(m_crColors[BTNST_COLOR_BK_FOCUS]); 
                        }             // if
                        else 
                                    {
                            pDC            ->SetTextColor(m_crColors[BTNST_COLOR_FG_OUT]); 
                            pDC            ->SetBkColor(m_crColors[BTNST_COLOR_BK_OUT]); 
                        }             // else
                    }             // else
                    pDC->DrawText(lpszText, -1, rpCaption, DT_WORDBREAK | DT_CENTER);
                }             // if
            }             // End of DrawTheText

            // This function creates a grayscale bitmap starting from a given bitmap.
            // The resulting bitmap will have the same size of the original one.
            //
            // Parameters:
            //        [IN]    hBitmap
            //                Handle to the original bitmap.
            //        [IN]    dwWidth
            //                Specifies the bitmap width, in pixels.
            //        [IN]    dwHeight
            //                Specifies the bitmap height, in pixels.
            //        [IN]    crTrans
            //                Color to be used as transparent color. This color will be left unchanged.
            //
            // Return value:
            //        If the function succeeds, the return value is the handle to the newly created
            //        grayscale bitmap.
            //        If the function fails, the return value is NULL.
            //
            HBITMAP CButtonST::CreateGrayscaleBitmap(HBITMAP hBitmap, DWORD dwWidth, DWORD dwHeight, COLORREF crTrans)
            {
                HBITMAP        hGrayBitmap             = NULL;
                HDC            hMainDC             = NULL, hMemDC1 = NULL, hMemDC2 = NULL;
                HBITMAP        hOldBmp1             = NULL, hOldBmp2 = NULL;

                hMainDC             = ::GetDC(NULL);
                            if (hMainDC == NULL)    return NULL;
                hMemDC1             = ::CreateCompatibleDC(hMainDC);
                            if (hMemDC1 == NULL)
                            {
                    ::ReleaseDC(NULL, hMainDC);
                                return NULL;
                }             // if
                hMemDC2 = ::CreateCompatibleDC(hMainDC);
                            if (hMemDC2 == NULL)
                            {
                    ::DeleteDC(hMemDC1);
                    ::ReleaseDC(NULL, hMainDC);
                                return NULL;
                }             // if

                hGrayBitmap             = ::CreateCompatibleBitmap(hMainDC, dwWidth, dwHeight);
                            if (hGrayBitmap)
                            {
                    hOldBmp1             = (HBITMAP)::SelectObject(hMemDC1, hGrayBitmap);
                    hOldBmp2             = (HBITMAP)::SelectObject(hMemDC2, hBitmap);

                                //::BitBlt(hMemDC1, 0, 0, dwWidth, dwHeight, hMemDC2, 0, 0, SRCCOPY);

                    DWORD        dwLoopY             = 0, dwLoopX = 0;
                    COLORREF    crPixel             = 0;
                    BYTE        byNewPixel             = 0;

                                for (dwLoopY = 0; dwLoopY < dwHeight; dwLoopY++)
                                {
                                    for (dwLoopX = 0; dwLoopX < dwWidth; dwLoopX++)
                                    {
                            crPixel             = ::GetPixel(hMemDC2, dwLoopX, dwLoopY);
                            byNewPixel             = (BYTE)((GetRValue(crPixel) * 0.299) + (GetGValue(crPixel) * 0.587) + (GetBValue(crPixel) * 0.114));

                                        if (crPixel != crTrans)
                                ::SetPixel(hMemDC1, dwLoopX, dwLoopY, RGB(byNewPixel, byNewPixel, byNewPixel));
                                        else
                                ::SetPixel(hMemDC1, dwLoopX, dwLoopY, crPixel);
                        }             // for
                    }             // for

                    ::SelectObject(hMemDC1, hOldBmp1);
                    ::SelectObject(hMemDC2, hOldBmp2);
                }             // if

                ::DeleteDC(hMemDC1);
                ::DeleteDC(hMemDC2);
                ::ReleaseDC(NULL, hMainDC);

                            return hGrayBitmap;
            }             // End of CreateGrayscaleBitmap

            // This function creates a bitmap that is 25% darker than the original.
            // The resulting bitmap will have the same size of the original one.
            //
            // Parameters:
            //        [IN]    hBitmap
            //                Handle to the original bitmap.
            //        [IN]    dwWidth
            //                Specifies the bitmap width, in pixels.
            //        [IN]    dwHeight
            //                Specifies the bitmap height, in pixels.
            //        [IN]    crTrans
            //                Color to be used as transparent color. This color will be left unchanged.
            //
            // Return value:
            //        If the function succeeds, the return value is the handle to the newly created
            //        darker bitmap.
            //        If the function fails, the return value is NULL.
            //
            HBITMAP CButtonST::CreateDarkerBitmap(HBITMAP hBitmap, DWORD dwWidth, DWORD dwHeight, COLORREF crTrans)
            {
                HBITMAP        hGrayBitmap             = NULL;
                HDC            hMainDC             = NULL, hMemDC1 = NULL, hMemDC2 = NULL;
                HBITMAP        hOldBmp1             = NULL, hOldBmp2 = NULL;

                hMainDC             = ::GetDC(NULL);
                            if (hMainDC == NULL)    return NULL;
                hMemDC1             = ::CreateCompatibleDC(hMainDC);
                            if (hMemDC1 == NULL)
                            {
                    ::ReleaseDC(NULL, hMainDC);
                                return NULL;
                }             // if
                hMemDC2 = ::CreateCompatibleDC(hMainDC);
                            if (hMemDC2 == NULL)
                            {
                    ::DeleteDC(hMemDC1);
                    ::ReleaseDC(NULL, hMainDC);
                                return NULL;
                }             // if

                hGrayBitmap             = ::CreateCompatibleBitmap(hMainDC, dwWidth, dwHeight);
                            if (hGrayBitmap)
                            {
                    hOldBmp1             = (HBITMAP)::SelectObject(hMemDC1, hGrayBitmap);
                    hOldBmp2             = (HBITMAP)::SelectObject(hMemDC2, hBitmap);

                                //::BitBlt(hMemDC1, 0, 0, dwWidth, dwHeight, hMemDC2, 0, 0, SRCCOPY);

                    DWORD        dwLoopY             = 0, dwLoopX = 0;
                    COLORREF    crPixel             = 0;

                                for (dwLoopY = 0; dwLoopY < dwHeight; dwLoopY++)
                                {
                                    for (dwLoopX = 0; dwLoopX < dwWidth; dwLoopX++)
                                    {
                            crPixel             = ::GetPixel(hMemDC2, dwLoopX, dwLoopY);

                                        if (crPixel != crTrans)
                                ::SetPixel(hMemDC1, dwLoopX, dwLoopY, DarkenColor(crPixel,             0.25));
                                        else
                                ::SetPixel(hMemDC1, dwLoopX, dwLoopY, crPixel);
                        }             // for
                    }             // for

                    ::SelectObject(hMemDC1, hOldBmp1);
                    ::SelectObject(hMemDC2, hOldBmp2);
                }             // if

                ::DeleteDC(hMemDC1);
                ::DeleteDC(hMemDC2);
                ::ReleaseDC(NULL, hMainDC);

                            return hGrayBitmap;
            }             // End of CreateDarkerBitmap
            

            
		
            
		Posted on 2007-04-12 11:47 艾凡赫 閱讀(646) 評論(0)  編輯 收藏 引用  所屬分類: MFC技術(shù) 
			
			


		
            
	
            


            
	    
    




            






            

				
	
            
	
	
	

            
    
    







            
	   
	



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