/** Handles the "point" command that adds a point to the point list. */
void EmSpecialHandler::point (InputReader &ir, SpecialActions &actions) {
DPair pos(actions.getX(), actions.getY());
int n = ir.getInt();
if (ir.getPunct() == ',') {
pos.x(ir.getDouble());
if (ir.getPunct() == ',')
pos.y(ir.getDouble());
}
_points[n] = pos;
}
/** Handles the "line" command that draws a straight line between two points
* from the point list. */
void EmSpecialHandler::line (InputReader &ir, SpecialActions& actions) {
int pointnum1 = ir.getInt();
int cut1 = 'p';
if (isalpha(ir.peek()))
cut1 = ir.get();
ir.getPunct();
int pointnum2 = ir.getInt();
int cut2 = 'p';
if (isalpha(ir.peek()))
cut2 = ir.get();
double linewidth = _linewidth;
if (ir.getPunct() == ',')
linewidth = read_length(ir);
auto it1=_points.find(pointnum1);
auto it2=_points.find(pointnum2);
if (it1 != _points.end() && it2 != _points.end())
create_line(it1->second, it2->second, char(cut1), char(cut2), linewidth, actions);
else {
// Line endpoints don't necessarily have to be defined before
// a line definition. If a point isn't defined yet, we put the line
// in a wait list and process the lines at the end of the page.
_lines.emplace_back(Line(pointnum1, pointnum2, char(cut1), char(cut2), linewidth));
}
}
