caret.c

linux下的图形界面开发minigui最新源代码

                        pWin->pCaretInfo->x, pWin->pCaretInfo->y, 0, 0, 
                        &pWin->pCaretInfo->caret_bmp);
#else
        PutSavedBoxOnDC (hdc, 
                        pWin->pCaretInfo->x, pWin->pCaretInfo->y,
                        pWin->pCaretInfo->nEffWidth,
                        pWin->pCaretInfo->nEffHeight,
                        pWin->pCaretInfo->pNormal);
#endif /* _USE_NEWGAL */

        pWin->pCaretInfo->fShow = FALSE;
    }
    
    ReleaseDC (hdc);

    return TRUE;
}

BOOL GUIAPI ShowCaret (HWND hWnd)
{
    PMAINWIN pWin;

    pWin = (PMAINWIN)hWnd;

    if (!pWin->pCaretInfo)
        return FALSE;

    if (pWin->pCaretInfo->fBlink)
        return FALSE;

    pWin->pCaretInfo->fBlink = TRUE;
    GetCaretBitmaps (pWin->pCaretInfo);
    
    if (!pWin->pCaretInfo->fShow) {

        HDC hdc;
        
        // show caret immediately
        hdc = GetClientDC (hWnd);
#ifdef _USE_NEWGAL
        pWin->pCaretInfo->caret_bmp.bmBits = pWin->pCaretInfo->pXored;
        FillBoxWithBitmap (hdc,
                        pWin->pCaretInfo->x, pWin->pCaretInfo->y, 0, 0, 
                        &pWin->pCaretInfo->caret_bmp);
#else
        PutSavedBoxOnDC (hdc, 
                        pWin->pCaretInfo->x, pWin->pCaretInfo->y,
                        pWin->pCaretInfo->nEffWidth,
                        pWin->pCaretInfo->nEffHeight,
                        pWin->pCaretInfo->pXored);
#endif /* _USE_NEWGAL */
        ReleaseDC (hdc);

        pWin->pCaretInfo->fShow = TRUE;
    }

    return TRUE;
}

BOOL GUIAPI SetCaretPos (HWND hWnd, int x, int y)
{
    PMAINWIN pWin;

    pWin = (PMAINWIN)hWnd;

    if (!pWin->pCaretInfo)
        return FALSE;

    if (pWin->pCaretInfo->fBlink) {
        if (pWin->pCaretInfo->fShow) {
        
            HDC hdc;

            // hide caret first
            hdc = GetClientDC (hWnd);
#ifdef _USE_NEWGAL
            pWin->pCaretInfo->caret_bmp.bmBits = pWin->pCaretInfo->pNormal;
            FillBoxWithBitmap (hdc,
                        pWin->pCaretInfo->x, pWin->pCaretInfo->y, 0, 0, 
                        &pWin->pCaretInfo->caret_bmp);
#else
            PutSavedBoxOnDC (hdc, 
                        pWin->pCaretInfo->x, pWin->pCaretInfo->y,
                        pWin->pCaretInfo->nEffWidth,
                        pWin->pCaretInfo->nEffHeight,
                        pWin->pCaretInfo->pNormal);
#endif /* _USE_NEWGAL */

            // then update position
            pWin->pCaretInfo->x = x;
            pWin->pCaretInfo->y = y;

            // save normal bitmap first
            GetCaretBitmaps (pWin->pCaretInfo);
            
            // show caret again
#ifdef _USE_NEWGAL
            pWin->pCaretInfo->caret_bmp.bmBits = pWin->pCaretInfo->pXored;
            FillBoxWithBitmap (hdc,
                        pWin->pCaretInfo->x, pWin->pCaretInfo->y, 0, 0, 
                        &pWin->pCaretInfo->caret_bmp);
#else
            PutSavedBoxOnDC (hdc, 
                        pWin->pCaretInfo->x, pWin->pCaretInfo->y,
                        pWin->pCaretInfo->nEffWidth,
                        pWin->pCaretInfo->nEffHeight,
                        pWin->pCaretInfo->pXored);
#endif /* _USE_NEWGAL */

            ReleaseDC (hdc);
        }
        else {
            HDC hdc;
        
            // update position
            pWin->pCaretInfo->x = x;
            pWin->pCaretInfo->y = y;

            // save normal bitmap first
            GetCaretBitmaps (pWin->pCaretInfo);

            // show caret
            hdc = GetClientDC (hWnd);
#ifdef _USE_NEWGAL
            pWin->pCaretInfo->caret_bmp.bmBits = pWin->pCaretInfo->pXored;
            FillBoxWithBitmap (hdc,
                        pWin->pCaretInfo->x, pWin->pCaretInfo->y, 0, 0, 
                        &pWin->pCaretInfo->caret_bmp);
#else
            PutSavedBoxOnDC (hdc, 
                        pWin->pCaretInfo->x, pWin->pCaretInfo->y,
                        pWin->pCaretInfo->nEffWidth,
                        pWin->pCaretInfo->nEffHeight,
                        pWin->pCaretInfo->pXored);
#endif /* _USE_NEWGAL */

            ReleaseDC (hdc);

            pWin->pCaretInfo->fShow = TRUE;
        }
    }
    else {
        // update position
        pWin->pCaretInfo->x = x;
        pWin->pCaretInfo->y = y;
    }

    return TRUE;
}

BOOL GUIAPI ChangeCaretSize (HWND hWnd, int newWidth, int newHeight)
{
    PMAINWIN pWin;

    pWin = (PMAINWIN)hWnd;

    if (!pWin->pCaretInfo)
        return FALSE;
    
#ifdef _USE_NEWGAL
    if (newWidth == pWin->pCaretInfo->caret_bmp.bmWidth
            && newHeight == pWin->pCaretInfo->caret_bmp.bmHeight)
        return TRUE;
#else
    if (newWidth == pWin->pCaretInfo->nEffWidth
            && newHeight == pWin->pCaretInfo->nEffHeight)
        return TRUE;
#endif /* _USE_NEWGAL */
        
    if (newWidth > pWin->pCaretInfo->nWidth
            || newHeight > pWin->pCaretInfo->nHeight
            || newWidth <= 0 || newHeight <= 0)
        return FALSE;

    if (pWin->pCaretInfo->fBlink) {
        if (pWin->pCaretInfo->fShow) {
        
            HDC hdc;

            // hide caret first
            hdc = GetClientDC (hWnd);
#ifdef _USE_NEWGAL
            pWin->pCaretInfo->caret_bmp.bmBits = pWin->pCaretInfo->pNormal;
            FillBoxWithBitmap (hdc,
                        pWin->pCaretInfo->x, pWin->pCaretInfo->y, 0, 0, 
                        &pWin->pCaretInfo->caret_bmp);
#else
            PutSavedBoxOnDC (hdc, 
                        pWin->pCaretInfo->x, pWin->pCaretInfo->y,
                        pWin->pCaretInfo->nEffWidth,
                        pWin->pCaretInfo->nEffHeight,
                        pWin->pCaretInfo->pNormal);
#endif /* _USE_NEWGAL */

            // then update size info
#ifdef _USE_NEWGAL
            pWin->pCaretInfo->caret_bmp.bmWidth = newWidth;
            pWin->pCaretInfo->caret_bmp.bmHeight= newHeight;
            pWin->pCaretInfo->nBytesNr = pWin->pCaretInfo->caret_bmp.bmPitch * newHeight;
#else
            pWin->pCaretInfo->nEffWidth = newWidth;
            pWin->pCaretInfo->nEffHeight = newHeight;
            pWin->pCaretInfo->nBytesNr = newWidth * newHeight * BYTESPERPHYPIXEL;
#endif /* _USE_NEWGAL */

            // save normal bitmap first
            GetCaretBitmaps (pWin->pCaretInfo);
            
            // show caret again
#ifdef _USE_NEWGAL
            pWin->pCaretInfo->caret_bmp.bmBits = pWin->pCaretInfo->pXored;
            FillBoxWithBitmap (hdc,
                        pWin->pCaretInfo->x, pWin->pCaretInfo->y, 0, 0, 
                        &pWin->pCaretInfo->caret_bmp);
#else
            PutSavedBoxOnDC (hdc, 
                        pWin->pCaretInfo->x, pWin->pCaretInfo->y,
                        pWin->pCaretInfo->nEffWidth,
                        pWin->pCaretInfo->nEffHeight,
                        pWin->pCaretInfo->pXored);
#endif /* _USE_NEWGAL */

            ReleaseDC (hdc);
        }
        else {
            HDC hdc;
        
            // then update size info
#ifdef _USE_NEWGAL
            pWin->pCaretInfo->caret_bmp.bmWidth = newWidth;
            pWin->pCaretInfo->caret_bmp.bmHeight= newHeight;
            pWin->pCaretInfo->nBytesNr = pWin->pCaretInfo->caret_bmp.bmPitch * newHeight;
#else
            pWin->pCaretInfo->nEffWidth = newWidth;
            pWin->pCaretInfo->nEffHeight = newHeight;
            pWin->pCaretInfo->nBytesNr = newWidth * newHeight * BYTESPERPHYPIXEL;
#endif /* _USE_NEWGAL */

            // save normal bitmap first
            GetCaretBitmaps (pWin->pCaretInfo);

            // show caret
            hdc = GetClientDC (hWnd);
#ifdef _USE_NEWGAL
            pWin->pCaretInfo->caret_bmp.bmBits = pWin->pCaretInfo->pXored;
            FillBoxWithBitmap (hdc,
                        pWin->pCaretInfo->x, pWin->pCaretInfo->y, 0, 0, 
                        &pWin->pCaretInfo->caret_bmp);
#else
            PutSavedBoxOnDC (hdc, 
                        pWin->pCaretInfo->x, pWin->pCaretInfo->y,
                        pWin->pCaretInfo->nEffWidth,
                        pWin->pCaretInfo->nEffHeight,
                        pWin->pCaretInfo->pXored);
#endif /* _USE_NEWGAL */

            ReleaseDC (hdc);

            pWin->pCaretInfo->fShow = TRUE;
        }
    }
    else {
        // update size info
#ifdef _USE_NEWGAL
        pWin->pCaretInfo->caret_bmp.bmWidth = newWidth;
        pWin->pCaretInfo->caret_bmp.bmHeight= newHeight;
        pWin->pCaretInfo->nBytesNr = pWin->pCaretInfo->caret_bmp.bmPitch * newHeight;
#else
        pWin->pCaretInfo->nEffWidth  = newWidth;
        pWin->pCaretInfo->nEffHeight = newHeight;
        pWin->pCaretInfo->nBytesNr = newWidth * newHeight * BYTESPERPHYPIXEL;
#endif
    }

    return TRUE;
}

BOOL GUIAPI GetCaretPos (HWND hWnd, PPOINT pPt)
{
    PMAINWIN pWin;

    pWin = (PMAINWIN)hWnd;

    if (!pWin->pCaretInfo)
        return FALSE;

    pPt->x = pWin->pCaretInfo->x;
    pPt->y = pWin->pCaretInfo->y;

    return TRUE;
}