Method drawVScrollBar

Engine/source/gui/containers/guiScrollCtrl.cpp:1087–1208

//-----------------------------------------------------------------------------

void GuiScrollCtrl::drawVScrollBar(const Point2I &offset)
{
    if ( mTextureObject.isNull() )
    {
        return;
    }

    // Start Point.
    Point2I pos = ( offset + mUpArrowRect.point );

    // Up Arrow.
    S32 upArrowBitmap = ( BmpStates * BmpUp );
    if ( !mVBarEnabled )
    {
        upArrowBitmap += BmpDisabled;
    }
    else if ( mHitRegion == UpArrow && mStateDepressed )
    {
        upArrowBitmap += BmpHilite;
    }

    // Render Up Arrow.
    GFXDrawUtil* drawUtil = GFX->getDrawUtil();
    drawUtil->clearBitmapModulation();
    drawUtil->drawBitmapSR(mTextureObject, pos, mBitmapBounds[upArrowBitmap]);

    // Update Pos.
    pos.y += mBitmapBounds[upArrowBitmap].extent.y;

    // Track.
    S32 trackBitmap = ( BmpStates * BmpVPage );
    if ( !mVBarEnabled )
    {
        trackBitmap += BmpDisabled;
    }
    else if ( mHitRegion == DownPage && mStateDepressed )
    {
        trackBitmap += BmpHilite;
    }

    // Determine the Track Rect.
    RectI trackRect;
    trackRect.point    = pos;
    trackRect.extent.x = mBitmapBounds[trackBitmap].extent.x;
    trackRect.extent.y = ( offset.y + mDownArrowRect.point.y ) - pos.y;

    // Render Track?
    if ( trackRect.extent.y > 0 )
    {
        // Render Track.
       drawUtil->clearBitmapModulation();
       drawUtil->drawBitmapStretchSR(mTextureObject, trackRect, mBitmapBounds[trackBitmap]);
    }

    // Update Pos.
    pos.y += trackRect.extent.y;

    // Down Arrow.