示例#1
0
void HudButton::Draw(nux::GraphicsEngine& GfxContext, bool force_draw)
{
  if (skip_draw_)
    return;

  nux::Geometry const& geo = GetGeometry();
  GfxContext.PushClippingRectangle(geo);
  gPainter.PaintBackground(GfxContext, geo);

  // set up our texture mode
  nux::TexCoordXForm texxform;
  texxform.SetWrap(nux::TEXWRAP_CLAMP, nux::TEXWRAP_CLAMP);
  texxform.SetTexCoordType(nux::TexCoordXForm::OFFSET_COORD);

  // clear what is behind us
  unsigned int alpha = 0, src = 0, dest = 0;
  GfxContext.GetRenderStates().GetBlend(alpha, src, dest);
  GfxContext.GetRenderStates().SetPremultipliedBlend(nux::SRC_OVER);
  GfxContext.GetRenderStates().SetBlend(true);

  nux::Color col(nux::color::Black);
  col.alpha = 0;
  GfxContext.QRP_Color(geo.x,
                       geo.y,
                       geo.width,
                       geo.height,
                       col);

  nux::BaseTexture* texture = normal_->GetTexture();

  if (HasKeyFocus() || fake_focused())
    texture = active_->GetTexture();
  else if (HasKeyFocus())
    texture = prelight_->GetTexture();
  else if (GetVisualState() == nux::ButtonVisualState::VISUAL_STATE_PRESSED)
    texture = active_->GetTexture();

  GfxContext.QRP_1Tex(geo.x,
                      geo.y,
                      texture->GetWidth(),
                      texture->GetHeight(),
                      texture->GetDeviceTexture(),
                      texxform,
                      nux::color::White);

  GfxContext.GetRenderStates().SetBlend(alpha, src, dest);

  GfxContext.PopClippingRectangle();
}
示例#2
0
void RatingsButton::Draw(nux::GraphicsEngine& GfxContext, bool force_draw)
{
  int rating =  static_cast<int>(GetRating() * NUM_STARS);
  // FIXME: 9/26/2011
  // We should probably support an API for saying whether the ratings
  // should or shouldn't support half stars...but our only consumer at
  // the moment is the applications scope which according to design
  // (Bug #839759) shouldn't. So for now just force rounding.
  //    int total_half_stars = rating % 2;
  //    int total_full_stars = rating / 2;
  int total_full_stars = rating;

  nux::Geometry const& geo = GetGeometry();
  nux::Geometry geo_star(geo);
  geo_star.width = star_size_.CP(scale);
  geo_star.height = star_size_.CP(scale);

  gPainter.PaintBackground(GfxContext, geo);
  // set up our texture mode
  nux::TexCoordXForm texxform;
  texxform.SetWrap(nux::TEXWRAP_CLAMP_TO_BORDER, nux::TEXWRAP_CLAMP_TO_BORDER);
  texxform.SetTexCoordType(nux::TexCoordXForm::OFFSET_SCALE_COORD);
  texxform.SetFilter(nux::TEXFILTER_LINEAR, nux::TEXFILTER_LINEAR);

  // clear what is behind us
  unsigned int alpha = 0, src = 0, dest = 0;

  GfxContext.GetRenderStates().GetBlend(alpha, src, dest);
  GfxContext.GetRenderStates().SetBlend(true, GL_ONE, GL_ONE_MINUS_SRC_ALPHA);

  nux::Color col = nux::color::Black;
  col.alpha = 0;
  GfxContext.QRP_Color(geo.x,
                       geo.y,
                       geo.width,
                       geo.height,
                       col);

  for (int index = 0; index < NUM_STARS; ++index)
  {
    dash::Style& style = dash::Style::Instance();
    auto texture = style.GetStarSelectedIcon();
    if (index < total_full_stars)
    {
      if (GetVisualState() == nux::ButtonVisualState::VISUAL_STATE_NORMAL)
        texture = style.GetStarSelectedIcon();
      else if (GetVisualState() == nux::ButtonVisualState::VISUAL_STATE_PRELIGHT)
        texture = style.GetStarSelectedIcon();
      else if (GetVisualState() == nux::ButtonVisualState::VISUAL_STATE_PRESSED)
        texture = style.GetStarSelectedIcon();
    }
    else
    {
      if (GetVisualState() == nux::ButtonVisualState::VISUAL_STATE_NORMAL)
        texture = style.GetStarDeselectedIcon();
      else if (GetVisualState() == nux::ButtonVisualState::VISUAL_STATE_PRELIGHT)
        texture = style.GetStarDeselectedIcon();
      else if (GetVisualState() == nux::ButtonVisualState::VISUAL_STATE_PRESSED)
        texture = style.GetStarDeselectedIcon();
    }

    GfxContext.QRP_1Tex(geo_star.x,
                        geo_star.y,
                        geo_star.width,
                        geo_star.height,
                        texture->GetDeviceTexture(),
                        texxform,
                        nux::Color(1.0f, 1.0f, 1.0f, 1.0f));

    if (focused_star_ == index)
    {
      GfxContext.QRP_1Tex(geo_star.x,
                          geo_star.y,
                          geo_star.width,
                          geo_star.height,
                          style.GetStarHighlightIcon()->GetDeviceTexture(),
                          texxform,
                          nux::Color(1.0f, 1.0f, 1.0f, 0.5f));
    }

    geo_star.x += geo_star.width + star_gap_.CP(scale);

  }

  GfxContext.GetRenderStates().SetBlend(alpha, src, dest);

}