vbasernd.cpp

来自「symbian 下的helix player源代码」· C++ 代码 · 共 563 行 · 第 1/2 页

    if (FAILED(retVal))
    {
        HX_RELEASE(m_pSite);
    }

    return retVal;
}

STDMETHODIMP CRNVisualBaseRenderer::DetachSite()
{
    // Release our IHXSite interface
    HX_RELEASE(m_pSite);

    // Now we're done with the MISUS
    if (m_pMISUS)
    {
        m_pMISUS->ReleaseSingleSiteUser();
    }
    HX_RELEASE(m_pMISUS);

    return HXR_OK;
}


HX_RESULT CRNVisualBaseRenderer::RMASurfaceUpdate2(IHXSubRectVideoSurface* pSurface,
                                                   HXxRect*                 pExtents,
                                                   HXxBoxRegion*              pDirtyRegion)
{
    //Base impl. Should never be called except by those renderers that
    //subscribe to the sub rect messages and implemnet this themselves.
    HX_ASSERT( "Should Never be called."==NULL );
    return HXR_OK;
}

STDMETHODIMP CRNVisualBaseRenderer::HandleEvent(HXxEvent *pEvent)
{
    // Check for input error
    if (!pEvent)
    {
        return HXR_FAIL;
    }

    // Set the defaults
    pEvent->handled = FALSE;
    pEvent->result  = 0;

    switch (pEvent->event)
    {
       case HX_SURFACE_UPDATE2:
       {
           
           HXxExposeInfo* pExpose = (HXxExposeInfo*)pEvent->param2;
           IHXSubRectVideoSurface *pSurface = (IHXSubRectVideoSurface*) (pEvent->param1);
           if (pSurface)
           {
               pSurface->AddRef();
               RMASurfaceUpdate2(pSurface, &pExpose->extents, pExpose->pRegion);
               HX_RELEASE(pSurface);
           }

           pEvent->handled = TRUE;           
       }
       break;
           
       case HX_SURFACE_UPDATE:
       {
            IHXVideoSurface *pSurface = (IHXVideoSurface *) (pEvent->param1);
            if (pSurface)
            {
                pSurface->AddRef();
                RMASurfaceUpdate(pSurface);
                HX_RELEASE(pSurface);
            }

#if defined(_UNIX) && defined(USE_XWINDOWS)
	    //
	    // Create a "hand" cursor for hyperlinks
	    //
	    {
		//
		// free previously allocated cursor
		//
		if (m_pDisplay && m_hHyperlinkCursor)
		{
		    XLockDisplay(m_pDisplay);
		    XFreeCursor(m_pDisplay, m_hHyperlinkCursor);
		    XUnlockDisplay(m_pDisplay);
		    m_hHyperlinkCursor = 0;
		}

		// 
		// get new display/window parameters and 
		// allocate a new cursor
		//
		HXxWindow *pWnd = (HXxWindow*)pEvent->param2;
		m_pDisplay = (Display*)pWnd->display;
		m_Window = (Window)pWnd->window;
		if (m_pDisplay)
		    m_hHyperlinkCursor = XCreateFontCursor(m_pDisplay, XC_hand2);
	    }	    
#endif

            pEvent->handled = TRUE;
        }
        break;

        case HX_MOUSE_ENTER:
        case HX_MOUSE_LEAVE:
        case HX_MOUSE_MOVE:
        {
            HXxPoint* mousePt = (HXxPoint*) pEvent->param1;
            OnMouseMove(0, (INT16) mousePt->x, (INT16) mousePt->y);
            pEvent->handled = TRUE;
        }
        break;

        case HX_PRIMARY_BUTTON_UP:
        {
            HXxPoint* mousePt = (HXxPoint*) pEvent->param1;
            HandleClick((INT16) mousePt->x, (INT16) mousePt->y);
            pEvent->handled = TRUE;
        }
        break;

#ifdef _WINDOWS
        case WM_SETCURSOR:
        {
            if(m_bSetHyperlinkCursor)
            {
                pEvent->handled       = TRUE;
                m_hPreHyperlinkCursor = SetCursor(m_hHyperlinkCursor);
            }
            else
            {
                // pngui will handle the setting of the cursor (back to arrow cursor)
                pEvent->handled       = FALSE;
            }
        }
        break;
#endif
        default:
            break;
    }

    return HXR_OK;
}

STDMETHODIMP_(BOOL) CRNVisualBaseRenderer::NeedsWindowedSites()
{
    return FALSE;
}

STDMETHODIMP CRNVisualBaseRenderer::OnMouseMove(INT16 fwKeys, INT16 xPos, INT16 yPos)
{
    // Make sure we're up and running
    if (!m_pPlayer)
    {
        return HXR_OK;
    }

    // Don't do anything if the x/y coordinates have changed from the
    // last call to OnMouseMove - this is needed because the call to
    // IHXStatusMessage::SetStatus() results in a WM_MOUSEMOVE event
    if(xPos == m_sOldMouseX && yPos == m_sOldMouseY)
    {
        return HXR_OK;
    }
    m_sOldMouseX = xPos;
    m_sOldMouseY = yPos;


#if defined(_WINDOWS)
    HCURSOR hCurrentCursor = GetCursor();
#endif

    // Find out from the sub-class if we're over an active hyperlink
    IHXBuffer* pStatusStr     = NULL;
    BOOL        bOverHyperlink = FALSE;
    HX_RESULT   retVal         = IsMouseOverActiveLink(xPos, yPos, bOverHyperlink, pStatusStr);
    if (FAILED(retVal))
    {
        return retVal;
    }

    if (bOverHyperlink)
    {
        // Set the status bar
        if (m_pStatusMessage)
        {
	    m_bStatusMsgWillNeedErasing = TRUE;
            m_pStatusMessage->SetStatus((const char*) pStatusStr->GetBuffer());
        }
        HX_RELEASE(pStatusStr);

        // Set the cursor
#if defined(_WINDOWS)
        if(!m_hHyperlinkCursor)
        {
            m_hHyperlinkCursor = LoadCursor(g_hInstance, MAKEINTRESOURCE(HANDCURSOR));
            if(!m_hHyperlinkCursor)
            {
                m_hHyperlinkCursor = LoadCursor(NULL, IDC_UPARROW);
            }
        }

        if(m_hHyperlinkCursor && hCurrentCursor != m_hHyperlinkCursor)
        {
            // We're over a link and the cursor is NOT already the hyperlink cursor,
            // so change it. This will happen when we get a WM_SETCURSOR event
            m_bSetHyperlinkCursor = TRUE;
        }
#elif defined(_MACINTOSH)
        if (m_hHyperlinkCursor)
        {
            ::SetCursor(*m_hHyperlinkCursor);
            m_eCurrentCursor = CURSOR_HYPERLINK;
        }
#elif defined(_UNIX) && defined(USE_XWINDOWS)
	if (m_pDisplay && m_hCurrentCursor != m_hHyperlinkCursor)
	{
	    XLockDisplay(m_pDisplay);
	    XDefineCursor(m_pDisplay, m_Window, m_hHyperlinkCursor);
	    XUnlockDisplay(m_pDisplay);
	    m_hCurrentCursor = m_hHyperlinkCursor;
	}
#endif
    }
    else // if (bOverHyperlink)
    {
        // Clear the status bar
	if (m_pStatusMessage  &&
		// /Fixes PR 65008 (JPG, PNG versions): only set this to NULL
		// if we have recently set the status message, otherwise we
		// may cause SMIL's setting of the status message to be
		// overwritten with NULL, i.e., erased:
		m_bStatusMsgWillNeedErasing)
	{
	    m_bStatusMsgWillNeedErasing = FALSE;
            m_pStatusMessage->SetStatus(NULL);
        }

        // Reset the cursor
#if defined(_WINDOWS)
        if(hCurrentCursor == m_hHyperlinkCursor)
        {
            // We are not over a hyperlink and out cursor IS the hyperlink cursor,
            // so we need to change it back. This will happen when we get a WM_SETCURSOR event
            m_bSetHyperlinkCursor = FALSE;
        }
#elif defined(_MACINTOSH)
        if (m_eCurrentCursor == CURSOR_HYPERLINK)
        {
            ::InitCursor();
            m_eCurrentCursor = CURSOR_ARROW;
        }
#elif defined(_UNIX) && defined(USE_XWINDOWS)
	if (m_pDisplay && m_hCurrentCursor == m_hHyperlinkCursor)
	{
	    XLockDisplay(m_pDisplay);
	    XUndefineCursor(m_pDisplay, m_Window);
	    XUnlockDisplay(m_pDisplay);
	    m_hCurrentCursor = 0;
	}
#endif
    }

    return HXR_OK;
}


BOOL CRNVisualBaseRenderer::_IsValidRendererSurface()
{
    return m_pSite!=NULL;
}

void CRNVisualBaseRenderer::_AttachSite()
{
    //Empty base impl.
}