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很好的button類實現文件 3

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

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

::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

::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

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很好的button類實現文件 3