bool group_symbolizer_helper::find_line_placements(T & path)
{
if (box_elements_.empty()) return true;
vertex_cache pp(path);
bool success = false;
while (pp.next_subpath())
{
if (pp.length() <= 0.001)
{
success = check_point_placement(pp.current_position()) || success;
continue;
}
double spacing = get_spacing(pp.length());
pp.forward(spacing/2.0);
do
{
tolerance_iterator tolerance_offset(text_props_->label_position_tolerance * scale_factor_, spacing); //TODO: Handle halign
while (tolerance_offset.next())
{
vertex_cache::scoped_state state(pp);
if (pp.move(tolerance_offset.get()) && check_point_placement(pp.current_position()))
{
success = true;
break;
}
}
} while (pp.forward(spacing));
}
return success;
}
bool placement_finder::find_line_placements(T & path, bool points)
{
if (!layouts_.line_count()) return true; //TODO
vertex_cache pp(path);
bool success = false;
while (pp.next_subpath())
{
if (points)
{
if (pp.length() <= 0.001)
{
success = find_point_placement(pp.current_position()) || success;
continue;
}
}
else
{
if ((pp.length() < text_props_->minimum_path_length * scale_factor_)
||
(pp.length() <= 0.001) // Clipping removed whole geometry
||
(pp.length() < layouts_.width()))
{
continue;
}
}
double spacing = get_spacing(pp.length(), points ? 0. : layouts_.width());
//horizontal_alignment_e halign = layouts_.back()->horizontal_alignment();
// halign == H_LEFT -> don't move
if (horizontal_alignment_ == H_MIDDLE || horizontal_alignment_ == H_AUTO || horizontal_alignment_ == H_ADJUST)
{
if (!pp.forward(spacing / 2.0)) continue;
}
else if (horizontal_alignment_ == H_RIGHT)
{
if (!pp.forward(pp.length())) continue;
}
if (move_dx_ != 0.0) path_move_dx(pp, move_dx_);
do
{
tolerance_iterator tolerance_offset(text_props_->label_position_tolerance * scale_factor_, spacing); //TODO: Handle halign
while (tolerance_offset.next())
{
vertex_cache::scoped_state state(pp);
if (pp.move(tolerance_offset.get())
&& ((points && find_point_placement(pp.current_position()))
|| (!points && single_line_placement(pp, text_props_->upright))))
{
success = true;
break;
}
}
} while (pp.forward(spacing));
}
return success;
}
