box2d<T>::box2d(const box2d_type &rhs, const agg::trans_affine& tr)
{
double x0 = rhs.minx_, y0 = rhs.miny_;
double x1 = rhs.maxx_, y1 = rhs.miny_;
double x2 = rhs.maxx_, y2 = rhs.maxy_;
double x3 = rhs.minx_, y3 = rhs.maxy_;
tr.transform(&x0, &y0);
tr.transform(&x1, &y1);
tr.transform(&x2, &y2);
tr.transform(&x3, &y3);
init(x0, y0, x2, y2);
expand_to_include(x1, y1);
expand_to_include(x3, y3);
}
box2d<T>& box2d<T>::operator*=(agg::trans_affine const& tr)
{
double x0 = minx_, y0 = miny_;
double x1 = maxx_, y1 = miny_;
double x2 = maxx_, y2 = maxy_;
double x3 = minx_, y3 = maxy_;
tr.transform(&x0, &y0);
tr.transform(&x1, &y1);
tr.transform(&x2, &y2);
tr.transform(&x3, &y3);
init(x0, y0, x2, y2);
expand_to_include(x1, y1);
expand_to_include(x3, y3);
return *this;
}
// arrange group members in x horizontal pairs of 2,
// one to the left and one to the right of center in each pair
void operator()(pair_layout const& layout) const
{
member_offsets_.resize(member_boxes_.size());
double y_margin = layout.get_item_margin();
double x_margin = y_margin / 2.0;
if (member_boxes_.size() == 1)
{
member_offsets_[0] = pixel_position(0, 0) - input_origin_;
return;
}
auto max_diff = layout.get_max_difference();
auto layout_box = make_horiz_pair(0, 0.0, 0, x_margin, max_diff);
auto y_shift = 0.5 * layout_box.height();
for (size_t i = 2; i < member_boxes_.size(); i += 2)
{
auto y = layout_box.maxy() + y_margin;
auto pair_box = make_horiz_pair(i, y, 1, x_margin, max_diff);
layout_box.expand_to_include(pair_box);
}
// layout_box.center corresponds to the center of the first row;
// shift offsets so that the whole group is centered vertically
y_shift -= 0.5 * layout_box.height();
for (auto & offset : member_offsets_)
{
offset.y += y_shift;
}
}
box2d<T>& box2d<T>::operator+=(box2d<T> const& other)
{
expand_to_include(other);
return *this;
}
inline
#endif
void box2d<T>::expand_to_include(const coord<T,2>& c)
{
expand_to_include(c.x,c.y);
}
inline void Envelope<T>::expand_to_include(const coord<T,2>& c)
{
expand_to_include(c.x,c.y);
}
