C++ (Cpp) ActivePixelTraits Examples

Example #1

File: Canvas.cpp Project: ThomasXBMC/XCSoar

void
Canvas::DrawPolyline(const RasterPoint *p, unsigned cPoints)
{
  SDLRasterCanvas canvas(buffer);
  ::DrawPolyline(canvas, ActivePixelTraits(), pen,
                 p, cPoints, false);
}

Example #2

File: Canvas.cpp Project: ThomasXBMC/XCSoar

void
Canvas::DrawPolygon(const RasterPoint *lppt, unsigned cPoints)
{
  if (brush.IsHollow() && !pen.IsDefined())
    return;

  SDLRasterCanvas canvas(buffer);

  static_assert(sizeof(RasterPoint) == sizeof(SDLRasterCanvas::Point),
                "Incompatible point types");
  const SDLRasterCanvas::Point *points =
    reinterpret_cast<const SDLRasterCanvas::Point *>(lppt);

  if (!brush.IsHollow()) {
    const auto color = canvas.Import(brush.GetColor());
    if (brush.GetColor().IsOpaque())
      canvas.FillPolygon(points, cPoints, color);
    else
      canvas.FillPolygon(points, cPoints, color,
                         AlphaPixelOperations<ActivePixelTraits>(brush.GetColor().Alpha()));
  }

  if (IsPenOverBrush())
    ::DrawPolyline(canvas, ActivePixelTraits(), pen,
                   lppt, cPoints, true);
}

Example #3

File: Canvas.cpp Project: Advi42/XCSoar

void
Canvas::DrawPolygon(const BulkPixelPoint *lppt, unsigned cPoints)
{
  if (brush.IsHollow() && !pen.IsDefined())
    return;

  SDLRasterCanvas canvas(buffer);

  if (!brush.IsHollow()) {
    const auto color = canvas.Import(brush.GetColor());
    if (brush.GetColor().IsOpaque())
      canvas.FillPolygon(lppt, cPoints, color);
    else
      canvas.FillPolygon(lppt, cPoints, color,
                         AlphaPixelOperations<ActivePixelTraits>(brush.GetColor().Alpha()));
  }

  if (IsPenOverBrush())
    ::DrawPolyline(canvas, ActivePixelTraits(), pen,
                   lppt, cPoints, true);
}