//! Only renders the shield background, the text is rendered in renderLabels
void Renderer::renderShields(const Cairo::RefPtr<Cairo::Context>& cr,
std::vector<shared_ptr<Shield> >& shields) const
{
cr->save();
cr->set_line_join(Cairo::LINE_JOIN_ROUND);
for (auto& shield : shields)
{
const Style* s = shield->style;
double x0, y0, height, width;
double border = ceil(s->shield_frame_width/2.0 + s->shield_casing_width);
x0 = shield->shield.minX + border;
y0 = shield->shield.minY + border;
width = shield->shield.getWidth() - 2*border;
height = shield->shield.getHeight() - 2*border;
if ((int) s->shield_frame_width % 2 == 1) {
x0 -= 0.5;
y0 -= 0.5;
}
if (s->shield_shape == Style::ShieldShape::ROUNDED) {
cr->arc(x0 + height/2.0, y0 + height/2.0,
height/2.0, boost::math::constants::pi<double>()/2.0, 3.0*boost::math::constants::pi<double>()/2.0);
cr->arc(x0 + width - height/2.0, y0 + height/2.0,
height/2.0, 3.0*boost::math::constants::pi<double>()/2.0, boost::math::constants::pi<double>()/2.0);
cr->close_path();
} else
cr->rectangle(x0, y0, width, height);
// shield casing
if (s->shield_casing_width > 0) {
cr->set_source_color(s->shield_casing_color),
cr->set_line_width(s->shield_frame_width + s->shield_casing_width * 2.0);
cr->stroke_preserve();
}
// shield background
cr->set_source_color(s->shield_color),
cr->fill_preserve();
// shield frame
cr->set_source_color(s->shield_frame_color),
cr->set_line_width(s->shield_frame_width);
cr->stroke();
}
cr->restore();
}
void Renderer::renderLabels(const Cairo::RefPtr<Cairo::Context>& cr,
std::vector<shared_ptr<LabelType> >& labels,
AssetCache& cache) const
{
cr->save();
cr->set_line_join(Cairo::LINE_JOIN_ROUND);
for (auto it = labels.rbegin(); it != labels.rend(); it++)
{
const shared_ptr<LabelType>& label = *it;
const Style* s = label->style;
cr->set_font_size(s->font_size);
cr->move_to(label->origin.x, label->origin.y);
cr->set_font_face(cache.getFont(
s->font_family.str(),
s->font_style == Style::STYLE_ITALIC ? Cairo::FONT_SLANT_ITALIC : Cairo::FONT_SLANT_NORMAL,
s->font_weight == Style::WEIGHT_BOLD ? Cairo::FONT_WEIGHT_BOLD : Cairo::FONT_WEIGHT_NORMAL
));
cr->text_path(label->text.str());
if (s->text_halo_radius > 0.0)
{
cr->set_source_color(s->text_halo_color);
cr->set_line_width(s->text_halo_radius*2.0);
cr->stroke_preserve();
}
cr->set_source_color(s->text_color);
cr->fill();
}
cr->restore();
}
void NodeRenderer::stroke(const Cairo::RefPtr<Cairo::Context>& cr)
{
// nothing to stroke
if (s->width <= 0.0)
return;
cr->save();
cr->arc(location.x, location.y, s->width/2.0, 0, 2*M_PI);
cr->set_source_color(s->color);
cr->fill();
cr->restore();
}
void NodeRenderer::casing(const Cairo::RefPtr<Cairo::Context>& cr)
{
// nothing to render
if (s->casing_width <= 0.0)
return;
cr->save();
cr->arc(location.x, location.y, s->width/2.0 + s->casing_width, 0, 2*boost::math::constants::pi<double>());
cr->set_source_color(s->casing_color);
cr->fill();
cr->restore();
}
