plugin.cpp

VLC Player Source Code

            WS_CHILD|WS_CLIPCHILDREN|WS_CLIPSIBLINGS,
            lprcPosRect->left,
            lprcPosRect->top,
            lprcPosRect->right-lprcPosRect->left,
            lprcPosRect->bottom-lprcPosRect->top,
            hwndParent,
            0,
            _p_class->getHInstance(),
            NULL
           );

    if( NULL == _inplacewnd )
        return E_FAIL;

    SetWindowLongPtr(_inplacewnd, GWLP_USERDATA, reinterpret_cast<LONG_PTR>(this));

    /* change cliprect coordinates system relative to window bounding rect */
    OffsetRect(&clipRect, -lprcPosRect->left, -lprcPosRect->top);

    HRGN clipRgn = CreateRectRgnIndirect(&clipRect);
    SetWindowRgn(_inplacewnd, clipRgn, TRUE);

    if( _b_usermode )
    {
        /* will run vlc if not done already */
        libvlc_instance_t* p_libvlc;
        HRESULT result = getVLC(&p_libvlc);
        if( FAILED(result) )
            return result;

        /* set internal video width and height */
        libvlc_video_set_size(p_libvlc,
            lprcPosRect->right-lprcPosRect->left,
            lprcPosRect->bottom-lprcPosRect->top,
            NULL );

        /* set internal video parent window */
        libvlc_video_set_parent(p_libvlc,
            reinterpret_cast<libvlc_drawable_t>(_inplacewnd), NULL);

        if( _b_autoplay & (libvlc_playlist_items_count(p_libvlc, NULL) > 0) )
        {
            libvlc_playlist_play(p_libvlc, 0, 0, NULL, NULL);
            fireOnPlayEvent();
        }
    }

    if( isVisible() )
        ShowWindow(_inplacewnd, SW_SHOW);

    return S_OK;
};

HRESULT VLCPlugin::onInPlaceDeactivate(void)
{
    if( isRunning() )
    {
        libvlc_playlist_stop(_p_libvlc, NULL);
        fireOnStopEvent();
    }

    DestroyWindow(_inplacewnd);
    _inplacewnd = NULL;

    return S_OK;
};

void VLCPlugin::setVisible(BOOL fVisible)
{
    if( fVisible != _b_visible )
    {
        _b_visible = fVisible;
        if( isInPlaceActive() )
        {
            ShowWindow(_inplacewnd, fVisible ? SW_SHOW : SW_HIDE);
            if( fVisible )
                InvalidateRect(_inplacewnd, NULL, TRUE);
        }
        setDirty(TRUE);
        firePropChangedEvent(DISPID_Visible);
    }
};

void VLCPlugin::setVolume(int volume)
{
    if( volume < 0 )
        volume = 0;
    else if( volume > 200 )
        volume = 200;

    if( volume != _i_volume )
    {
        _i_volume = volume;
        if( isRunning() )
        {
            libvlc_audio_set_volume(_p_libvlc, _i_volume, NULL);
        }
        setDirty(TRUE);
    }
};

void VLCPlugin::setBackColor(OLE_COLOR backcolor)
{
    if( _i_backcolor != backcolor )
    {
        _i_backcolor = backcolor;
        if( isInPlaceActive() )
        {

        }
        setDirty(TRUE);
    }
};

void VLCPlugin::setTime(int seconds)
{
    if( seconds < 0 )
        seconds = 0;

    if( seconds != _i_time )
    {
        setStartTime(_i_time);
        if( isRunning() )
        {
            libvlc_media_player_t *p_md = libvlc_playlist_get_media_player(_p_libvlc, NULL);
            if( NULL != p_md )
            {
                libvlc_media_player_set_time(p_md, _i_time, NULL);
                libvlc_media_player_release(p_md);
            }
        }
    }
};

void VLCPlugin::setFocus(BOOL fFocus)
{
    if( fFocus )
        SetActiveWindow(_inplacewnd);
};

BOOL VLCPlugin::hasFocus(void)
{
    return GetActiveWindow() == _inplacewnd;
};

void VLCPlugin::onDraw(DVTARGETDEVICE * ptd, HDC hicTargetDev,
        HDC hdcDraw, LPCRECTL lprcBounds, LPCRECTL lprcWBounds)
{
    if( isVisible() )
    {
        long width = lprcBounds->right-lprcBounds->left;
        long height = lprcBounds->bottom-lprcBounds->top;

        RECT bounds = { lprcBounds->left, lprcBounds->top, lprcBounds->right, lprcBounds->bottom };

        if( isUserMode() )
        {
            /* VLC is in user mode, just draw background color */
            COLORREF colorref = RGB(0, 0, 0);
            OleTranslateColor(_i_backcolor, (HPALETTE)GetStockObject(DEFAULT_PALETTE), &colorref);
            if( colorref != RGB(0, 0, 0) )
            {
                /* custom background */
                HBRUSH colorbrush = CreateSolidBrush(colorref);
                FillRect(hdcDraw, &bounds, colorbrush);
                DeleteObject((HANDLE)colorbrush);
            }
            else
            {
                /* black background */
                FillRect(hdcDraw, &bounds, (HBRUSH)GetStockObject(BLACK_BRUSH));
            }
        }
        else
        {
            /* VLC is in design mode, draw the VLC logo */
            FillRect(hdcDraw, &bounds, (HBRUSH)GetStockObject(WHITE_BRUSH));

            LPPICTURE pict = getPicture();
            if( NULL != pict )
            {
                OLE_XSIZE_HIMETRIC picWidth;
                OLE_YSIZE_HIMETRIC picHeight;

                pict->get_Width(&picWidth);
                pict->get_Height(&picHeight);

                SIZEL picSize = { picWidth, picHeight };

                if( NULL != hicTargetDev )
                {
                    DPFromHimetric(hicTargetDev, (LPPOINT)&picSize, 1);
                }
                else if( NULL != (hicTargetDev = CreateDevDC(ptd)) )
                {
                    DPFromHimetric(hicTargetDev, (LPPOINT)&picSize, 1);
                    DeleteDC(hicTargetDev);
                }

                if( picSize.cx > width-4 )
                    picSize.cx = width-4;
                if( picSize.cy > height-4 )
                    picSize.cy = height-4;

                LONG dstX = lprcBounds->left+(width-picSize.cx)/2;
                LONG dstY = lprcBounds->top+(height-picSize.cy)/2;

                if( NULL != lprcWBounds )
                {
                    RECT wBounds = { lprcWBounds->left, lprcWBounds->top, lprcWBounds->right, lprcWBounds->bottom };
                    pict->Render(hdcDraw, dstX, dstY, picSize.cx, picSize.cy,
                            0L, picHeight, picWidth, -picHeight, &wBounds);
                }
                else
                    pict->Render(hdcDraw, dstX, dstY, picSize.cx, picSize.cy,
                            0L, picHeight, picWidth, -picHeight, NULL);

                pict->Release();
            }

            SelectObject(hdcDraw, GetStockObject(BLACK_BRUSH));

            MoveToEx(hdcDraw, bounds.left, bounds.top, NULL);
            LineTo(hdcDraw, bounds.left+width-1, bounds.top);
            LineTo(hdcDraw, bounds.left+width-1, bounds.top+height-1);
            LineTo(hdcDraw, bounds.left, bounds.top+height-1);
            LineTo(hdcDraw, bounds.left, bounds.top);
        }
    }
};

void VLCPlugin::onPaint(HDC hdc, const RECT &bounds, const RECT &clipRect)
{
    if( isVisible() )
    {
        /* if VLC is in design mode, draw control logo */
        HDC hdcDraw = CreateCompatibleDC(hdc);
        if( NULL != hdcDraw )
        {
            SIZEL size = getExtent();
            DPFromHimetric(hdc, (LPPOINT)&size, 1);
            RECTL posRect = { 0, 0, size.cx, size.cy };

            int width = bounds.right-bounds.left;
            int height = bounds.bottom-bounds.top;

            HBITMAP hBitmap = CreateCompatibleBitmap(hdc, width, height);
            if( NULL != hBitmap )
            {
                HBITMAP oldBmp = (HBITMAP)SelectObject(hdcDraw, hBitmap);

                if( (size.cx != width) || (size.cy != height) )
                {
                    // needs to scale canvas
                    SetMapMode(hdcDraw, MM_ANISOTROPIC);
                    SetWindowExtEx(hdcDraw, size.cx, size.cy, NULL);
                    SetViewportExtEx(hdcDraw, width, height, NULL);
                }

                onDraw(NULL, hdc, hdcDraw, &posRect, NULL);

                SetMapMode(hdcDraw, MM_TEXT);
                BitBlt(hdc, bounds.left, bounds.top,
                        width, height,
                        hdcDraw, 0, 0,
                        SRCCOPY);

                SelectObject(hdcDraw, oldBmp);
                DeleteObject(hBitmap);
            }
            DeleteDC(hdcDraw);
        }
    }
};

void VLCPlugin::onPositionChange(LPCRECT lprcPosRect, LPCRECT lprcClipRect)
{
    RECT clipRect = *lprcClipRect;

    //RedrawWindow(GetParent(_inplacewnd), &_posRect, NULL, RDW_INVALIDATE|RDW_ERASE|RDW_ALLCHILDREN);

    /*
    ** record keeping of control geometry within container
    */
    _posRect = *lprcPosRect;

    /*
    ** change in-place window geometry to match clipping region
    */
    SetWindowPos(_inplacewnd, NULL,
            lprcPosRect->left,
            lprcPosRect->top,
            lprcPosRect->right-lprcPosRect->left,
            lprcPosRect->bottom-lprcPosRect->top,
            SWP_NOACTIVATE|
            SWP_NOCOPYBITS|
            SWP_NOZORDER|
            SWP_NOOWNERZORDER );

    /* change cliprect coordinates system relative to window bounding rect */
    OffsetRect(&clipRect, -lprcPosRect->left, -lprcPosRect->top);
    HRGN clipRgn = CreateRectRgnIndirect(&clipRect);
    SetWindowRgn(_inplacewnd, clipRgn, FALSE);

    //RedrawWindow(_videownd, &posRect, NULL, RDW_INVALIDATE|RDW_ERASE|RDW_ALLCHILDREN);
    if( isRunning() )
    {
        libvlc_video_set_size(_p_libvlc,
            lprcPosRect->right-lprcPosRect->left,
            lprcPosRect->bottom-lprcPosRect->top,
            NULL );
    }
};

void VLCPlugin::freezeEvents(BOOL freeze)
{
    vlcConnectionPointContainer->freezeEvents(freeze);
};

void VLCPlugin::firePropChangedEvent(DISPID dispid)
{
    vlcConnectionPointContainer->firePropChangedEvent(dispid);
};

void VLCPlugin::fireOnPlayEvent(void)
{
    DISPPARAMS dispparamsNoArgs = {NULL, NULL, 0, 0};
    vlcConnectionPointContainer->fireEvent(DISPID_PlayEvent, &dispparamsNoArgs);
};

void VLCPlugin::fireOnPauseEvent(void)
{
    DISPPARAMS dispparamsNoArgs = {NULL, NULL, 0, 0};
    vlcConnectionPointContainer->fireEvent(DISPID_PauseEvent, &dispparamsNoArgs);
};

void VLCPlugin::fireOnStopEvent(void)
{
    DISPPARAMS dispparamsNoArgs = {NULL, NULL, 0, 0};
    vlcConnectionPointContainer->fireEvent(DISPID_StopEvent, &dispparamsNoArgs);
};