ladanyi@1606: #include "broken_edge.h"
alpar@1632: #include <cmath>
hegyi@1497:
hegyi@1501: BrokenEdge::BrokenEdge(Gnome::Canvas::Group & g, Gnome::Canvas::Points p, GraphDisplayerCanvas & gc) : Line(g), gdc(gc), isbutton(false)
hegyi@1497: {
hegyi@1499: my_points=new Gnome::Art::Point[3];
hegyi@1499:
hegyi@1499: arrow=new Gnome::Canvas::Polygon(g);
hegyi@1499: *arrow << Gnome::Canvas::Properties::fill_color("red");
hegyi@1524: arrow->signal_event().connect(sigc::mem_fun(*this, &BrokenEdge::edgeFormerEventHandler));
ladanyi@1645: arrow->lower_to_bottom();
hegyi@1524: setPoints(p);
hegyi@1499: }
hegyi@1499:
hegyi@1499: BrokenEdge::~BrokenEdge()
hegyi@1499: {
hegyi@1499: if(arrow)delete(arrow);
hegyi@1499: }
hegyi@1499:
hegyi@1524: void BrokenEdge::setPoints(Gnome::Canvas::Points p, bool move)
hegyi@1499: {
hegyi@1499: bool set_arrow=false;
hegyi@1601: //red arrow losts its position-right button
hegyi@1500: if(!move)
hegyi@1497: {
hegyi@1500: if(p.size()==2)
hegyi@1500: {
hegyi@1500: set_arrow=true;
hegyi@1500: Gnome::Canvas::Points points_with_center;
hegyi@1500: points_with_center.push_back(my_points[0]=p[0]);
hegyi@1500: points_with_center.push_back(my_points[1]=Gnome::Art::Point( (p[0].get_x()+p[1].get_x())/2+0 , (p[0].get_y()+p[1].get_y())/2 )+0 );
hegyi@1500: points_with_center.push_back(my_points[2]=p[1]);
hegyi@1500: property_points().set_value(points_with_center);
hegyi@1500: }
hegyi@1500: if(p.size()==3)
hegyi@1500: {
hegyi@1500: set_arrow=true;
hegyi@1500: property_points().set_value(p);
hegyi@1500: for(int i=0;i<3;i++)
hegyi@1500: {
hegyi@1500: my_points[i]=p[i];
hegyi@1500: }
hegyi@1500: }
hegyi@1500: }
hegyi@1500: else
hegyi@1499: {
hegyi@1601: //arrow keeps its position-left button
hegyi@1601:
hegyi@1602: if(p.size()==2)
hegyi@1602: {
hegyi@1602: Gnome::Canvas::Points points;
hegyi@1602: my_points[0]=p[0];
hegyi@1602: my_points[2]=p[1];
hegyi@1602: for(int i=0;i<3;i++)
hegyi@1602: {
hegyi@1602: points.push_back(my_points[i]);
hegyi@1602: }
hegyi@1602: property_points().set_value(points);
hegyi@1602: }
hegyi@1602: set_arrow=true;
hegyi@1601:
hegyi@1601: //////////////////////////////////////////////////////////////////////////////////////////////////////
hegyi@1601: /////////// kepps shape-with angles
hegyi@1601: //////////////////////////////////////////////////////////////////////////////////////////////////////
hegyi@1601:
hegyi@1601:
hegyi@1601: // //old vector from one to the other node
hegyi@1601: // xy<double> o_p2p(my_points[2].get_x()-my_points[0].get_x(),my_points[2].get_y()-my_points[0].get_y());
hegyi@1601: // //projection of the old vector to positive x axis
hegyi@1601: // xy<double> o_x_p2p(fabs(o_p2p.x),0);
hegyi@1601: // //length of p2p vector
hegyi@1601: // double o_l_p2p=sqrt( o_p2p.normSquare() );
hegyi@1601: // if(o_p2p.x<0)
hegyi@1601: // {
hegyi@1601: // o_l_p2p*=-1;
hegyi@1601: // }
hegyi@1601: // //length of projection of p2p vector
hegyi@1601: // double o_l_x_p2p=sqrt( o_x_p2p.normSquare() );
hegyi@1601: // //old angle of p2p vector to the x axis
hegyi@1601: // double o_a_p2p=acos(o_l_x_p2p/o_l_p2p);
hegyi@1601: // if(o_p2p.y>0)
hegyi@1601: // {
hegyi@1601: // o_a_p2p=2*M_PI-o_a_p2p;
hegyi@1601: // }
hegyi@1601:
hegyi@1601: // //old vector from first node to the breakpoint
hegyi@1601: // xy<double> o_1b((my_points[1].get_x()-my_points[0].get_x()),(my_points[1].get_y()-my_points[0].get_y()));
hegyi@1601: // //projection of the old node-breakpoint vector to positive x axis
hegyi@1601: // xy<double> o_x_1b(fabs(o_1b.x),0);
hegyi@1601: // //length of 1b vector
hegyi@1601: // double o_l_1b=sqrt( o_1b.normSquare() );
hegyi@1601: // if(o_1b.x<0)
hegyi@1601: // {
hegyi@1601: // o_l_1b*=-1;
hegyi@1601: // }
hegyi@1601: // //length of projection of 1b vector
hegyi@1601: // double o_l_x_1b=sqrt( o_x_1b.normSquare() );
hegyi@1601: // //old angle of 1b vector to the x axis
hegyi@1601: // double o_a_1b=acos(o_l_x_1b/o_l_1b);
hegyi@1601: // if(o_1b.y>0)
hegyi@1601: // {
hegyi@1601: // o_a_1b=2*M_PI-o_a_1b;
hegyi@1601: // }
hegyi@1601:
hegyi@1601: // if(p.size()==2)
hegyi@1601: // {
hegyi@1601: // set_arrow=true;
hegyi@1601:
hegyi@1601: // my_points[0]=p[0];
hegyi@1601: // my_points[2]=p[1];
hegyi@1601:
hegyi@1601: // //new vector from one to the other node
hegyi@1601: // xy<double> n_p2p(my_points[2].get_x()-my_points[0].get_x(),my_points[2].get_y()-my_points[0].get_y());
hegyi@1601: // //projection of the new vector to positive x axis
hegyi@1601: // xy<double> n_x_p2p(fabs(n_p2p.x),0);
hegyi@1601: // //length of p2p vector
hegyi@1601: // double n_l_p2p=sqrt( n_p2p.normSquare() );
hegyi@1601: // if(n_p2p.x<0)
hegyi@1601: // {
hegyi@1601: // n_l_p2p*=-1;
hegyi@1601: // }
hegyi@1601: // //length of projection of p2p vector
hegyi@1601: // double n_l_x_p2p=sqrt( n_x_p2p.normSquare() );
hegyi@1601: // //new angle of p2p vector to the x axis
hegyi@1601: // double n_a_p2p=acos(n_l_x_p2p/n_l_p2p);
hegyi@1601: // if(n_p2p.y>0)
hegyi@1601: // {
hegyi@1601: // n_a_p2p=2*M_PI-n_a_p2p;
hegyi@1601: // }
hegyi@1601:
hegyi@1601: // //new angle of 1b vector to the x axis
hegyi@1601: // double n_a_1b=o_a_1b+n_a_p2p-o_a_p2p;
hegyi@1601:
hegyi@1601: // std::cout << " p2p regi: " << o_a_p2p/M_PI*180 << " uj: " << n_a_p2p/M_PI*180-(int)n_a_p2p/M_PI*180 << std::endl;
hegyi@1601: // std::cout << " 1b regi: " << o_a_1b/M_PI*180 << " uj: " << n_a_1b/M_PI*180-(int)n_a_1b/M_PI*180 << std::endl;
hegyi@1601:
hegyi@1601: // // std::cout << o_p2p << " " << n_p2p << std::endl;
hegyi@1601:
hegyi@1601: // if((n_a_1b>M_PI*3/2)||(n_a_1b<M_PI/2))
hegyi@1601: // {
hegyi@1601: // std::cout << "jobb terfel" << std::endl;
hegyi@1601: // my_points[1]=Gnome::Art::Point(p[0].get_x()+cos(n_a_1b)*o_l_1b*n_l_p2p/o_l_p2p,p[0].get_y()-sin(n_a_1b)*o_l_1b*n_l_p2p/o_l_p2p);
hegyi@1601: // }
hegyi@1601: // else if((n_a_1b<M_PI*3/2)&&(n_a_1b>M_PI/2))
hegyi@1601: // {
hegyi@1601: // std::cout << "bal terfel" << std::endl;
hegyi@1601: // my_points[1]=Gnome::Art::Point(p[0].get_x()-cos(n_a_1b)*o_l_1b*n_l_p2p/o_l_p2p,p[0].get_y()+sin(n_a_1b)*o_l_1b*n_l_p2p/o_l_p2p);
hegyi@1601: // }
hegyi@1601: // else
hegyi@1601: // {
hegyi@1601: // std::cout << "y tengely" << std::endl;
hegyi@1601: // double new_y=my_points[1].get_y();
hegyi@1601: // my_points[1]=Gnome::Art::Point(p[0].get_x()-cos(n_a_1b)*o_l_1b*n_l_p2p/o_l_p2p,new_y);
hegyi@1601: // }
hegyi@1601:
hegyi@1601: // std::cout << "alap: " << p[0] << " eredeti hossz: " << o_l_1b << " nagy uj: " << n_l_p2p << " nagy regi: " << o_l_p2p << " a*b/c " << o_l_1b*n_l_p2p/o_l_p2p << " eredmeny: " << my_points[1] << std::endl;
hegyi@1601:
hegyi@1601:
hegyi@1601: // // if(o_1b.x*o_1b.y>0)
hegyi@1601: // // {
hegyi@1601: // // if(n_p2p.x>0)
hegyi@1601: // // {
hegyi@1601: // // my_points[1]=Gnome::Art::Point(p[0].get_x()+cos(n_a_1b)*o_l_1b*n_l_p2p/o_l_p2p,p[0].get_y()+sin(n_a_1b)*o_l_1b*n_l_p2p/o_l_p2p);
hegyi@1601: // // }
hegyi@1601: // // else
hegyi@1601: // // {
hegyi@1601: // // my_points[1]=Gnome::Art::Point(p[0].get_x()-cos(n_a_1b)*o_l_1b*n_l_p2p/o_l_p2p,p[0].get_y()-sin(n_a_1b)*o_l_1b*n_l_p2p/o_l_p2p);
hegyi@1601: // // }
hegyi@1601: // // }
hegyi@1601: // // else if(o_1b.x*o_1b.y<0)
hegyi@1601: // // {
hegyi@1601: // // if(n_p2p.x>0)
hegyi@1601: // // {
hegyi@1601: // // my_points[1]=Gnome::Art::Point(p[0].get_x()+cos(n_a_1b)*o_l_1b*n_l_p2p/o_l_p2p,p[0].get_y()-sin(n_a_1b)*o_l_1b*n_l_p2p/o_l_p2p);
hegyi@1601: // // }
hegyi@1601: // // else
hegyi@1601: // // {
hegyi@1601: // // my_points[1]=Gnome::Art::Point(p[0].get_x()-cos(n_a_1b)*o_l_1b*n_l_p2p/o_l_p2p,p[0].get_y()+sin(n_a_1b)*o_l_1b*n_l_p2p/o_l_p2p);
hegyi@1601: // // }
hegyi@1601: // // }
hegyi@1601: // // else
hegyi@1601: // // {
hegyi@1601: // // }
hegyi@1601:
hegyi@1601: //////////////////////////////////////////////////////////////////////////////////////////////////////
hegyi@1601: /////////// kepps shape-with scalar multiplication
hegyi@1601: //////////////////////////////////////////////////////////////////////////////////////////////////////
hegyi@1601:
hegyi@1602: // if(p.size()==2)
hegyi@1602: // {
hegyi@1602: // //old vector from one to the other node - a
hegyi@1602: // xy<double> a_v(my_points[2].get_x()-my_points[0].get_x(),my_points[2].get_y()-my_points[0].get_y());
hegyi@1602: // //new vector from one to the other node - b
hegyi@1602: // xy<double> b_v(p[1].get_x()-p[0].get_x(),p[1].get_y()-p[0].get_y());
hegyi@1601:
hegyi@1602: // //old vector from one node to the breakpoint - c
hegyi@1602: // xy<double> c_v(my_points[1].get_x()-my_points[0].get_x(),my_points[1].get_y()-my_points[0].get_y());
hegyi@1601:
hegyi@1602: // //new vector from one node to the breakpoint - d - we have to calculate this one
hegyi@1602: // xy<double> d_v;
hegyi@1601:
hegyi@1602: // //scalar product of a and b (old and new vector from first point to the other)
hegyi@1602: // double sab=a_v*b_v;
hegyi@1602: // //scalar product of c and d (old and new vector from first point to breakpoint)
hegyi@1602: // double scd=sab*c_v.normSquare()/a_v.normSquare();
hegyi@1601:
hegyi@1602: // std::cout<<" a " << a_v<<" b " <<b_v<<" c " <<c_v<<" sab " <<sab<<" scd "<<scd<<std::endl;
hegyi@1601:
hegyi@1602: // double a=c_v.normSquare();
hegyi@1602: // double b=2*scd*c_v.y;
hegyi@1602: // double c=scd*scd-b_v.normSquare()/a_v.normSquare()*c_v.normSquare()*c_v.x*c_v.x;
hegyi@1601:
hegyi@1602: // std::cout<<" a " << a<<" b " <<b<<" c " <<c<<std::endl;
hegyi@1601:
hegyi@1602: // d_v.y=(-b-sqrt(b*b-4*a*c))/2/a;
hegyi@1601:
hegyi@1602: // if(c_v.x!=0)
hegyi@1602: // {
hegyi@1602: // d_v.x=(scd-c_v.y*d_v.y)/c_v.x;
hegyi@1602: // }
hegyi@1602: // else
hegyi@1602: // {
hegyi@1602: // d_v.x=my_points[1].get_x();
hegyi@1602: // }
hegyi@1601:
hegyi@1602: // std::cout<<" d " << d_v<<std::endl;
hegyi@1601:
hegyi@1602: // my_points[1]=Gnome::Art::Point(d_v.x+p[0].get_x(),d_v.y+p[0].get_y());
hegyi@1601:
hegyi@1602: // Gnome::Canvas::Points points;
hegyi@1602: // for(int i=0;i<3;i++)
hegyi@1602: // {
hegyi@1602: // points.push_back(my_points[i]);
hegyi@1602: // }
hegyi@1602: // property_points().set_value(points);
hegyi@1602: // }
hegyi@1499: }
hegyi@1499: if(set_arrow)
hegyi@1499: {
hegyi@1499: //calculating coordinates of the direction indicator arrow
hegyi@1499:
hegyi@1499: xy<gdouble> target( my_points[2].get_x(), my_points[2].get_y() );
hegyi@1499: xy<gdouble> center( my_points[1].get_x(), my_points[1].get_y() );
hegyi@1499:
hegyi@1499: xy<gdouble> unit_vector_in_dir(target-center);
hegyi@1499: // std::cout << target << " - " << center << " = " << unit_vector_in_dir << " / " <<unit_vector_in_dir.normSquare() ;
hegyi@1499: unit_vector_in_dir/=sqrt( unit_vector_in_dir.normSquare() );
hegyi@1499: // std::cout << " = " << unit_vector_in_dir << std::endl;
hegyi@1499:
hegyi@1499: xy<gdouble> unit_norm_vector(0-unit_vector_in_dir.y, unit_vector_in_dir.x);
hegyi@1499: // std::cout << unit_norm_vector << std::endl;
hegyi@1499:
hegyi@1499: {
hegyi@1504: // /\ // top
hegyi@1504: // / \ //
hegyi@1504: // - - // c(enter)l(eft), ccl, ccr, cr
hegyi@1504: // || //
hegyi@1504: // || // b(ottom)l, br
hegyi@1499: }
hegyi@1499:
hegyi@1499: double size=3;
hegyi@1499:
hegyi@1499: xy<gdouble> bl (center - unit_vector_in_dir * 3 * size + unit_norm_vector * size );
hegyi@1499: xy<gdouble> br (center - unit_vector_in_dir * 3 * size - unit_norm_vector * size );
hegyi@1499: xy<gdouble> ccl(center + unit_vector_in_dir * size + unit_norm_vector * size );
hegyi@1499: xy<gdouble> ccr(center + unit_vector_in_dir * size - unit_norm_vector * size );
hegyi@1499: xy<gdouble> cl (center + unit_vector_in_dir * size + unit_norm_vector * 2 * size );
hegyi@1499: xy<gdouble> cr (center + unit_vector_in_dir * size - unit_norm_vector * 2 * size );
hegyi@1499: xy<gdouble> top(center + unit_vector_in_dir * 3 * size);
hegyi@1499:
hegyi@1499: // std::cout << bl << " " << br << " " << ccl << " " << ccr << " " << cl << " " << cr << " " << top << std::endl;
hegyi@1499:
hegyi@1499: Gnome::Canvas::Points arrow_points;
hegyi@1499: arrow_points.push_back(Gnome::Art::Point( bl.x , bl.y ) );
hegyi@1499: arrow_points.push_back(Gnome::Art::Point( br.x , br.y ) );
hegyi@1499: arrow_points.push_back(Gnome::Art::Point( ccr.x, ccr.y ) );
hegyi@1499: arrow_points.push_back(Gnome::Art::Point( cr.x , cr.y ) );
hegyi@1499: arrow_points.push_back(Gnome::Art::Point( top.x, top.y ) );
hegyi@1499: arrow_points.push_back(Gnome::Art::Point( cl.x , cl.y ) );
hegyi@1499: arrow_points.push_back(Gnome::Art::Point( ccl.x, ccl.y ) );
hegyi@1499:
hegyi@1499: arrow->property_points().set_value(arrow_points);
hegyi@1497: }
hegyi@1497: }
hegyi@1499:
hegyi@1524: bool BrokenEdge::edgeFormerEventHandler(GdkEvent* e)
hegyi@1499: {
hegyi@1499: switch(e->type)
hegyi@1499: {
hegyi@1499: case GDK_BUTTON_PRESS:
hegyi@1499: //we mark the location of the event to be able to calculate parameters of dragging
hegyi@1524: if(gdc.getActualTool()!=CREATE_NODE)
hegyi@1501: {
hegyi@1524: gdc.toggleEdgeActivity(this, true);
hegyi@1501: clicked_x=e->button.x;
hegyi@1501: clicked_y=e->button.y;
hegyi@1501: isbutton=true;
hegyi@1501: }
hegyi@1499: break;
hegyi@1499: case GDK_BUTTON_RELEASE:
hegyi@1524: if(gdc.getActualTool()!=CREATE_NODE)
hegyi@1505: {
hegyi@1524: gdc.toggleEdgeActivity(this, false);
hegyi@1505: isbutton=false;
hegyi@1505: }
hegyi@1499: break;
hegyi@1499: case GDK_MOTION_NOTIFY:
hegyi@1499: //we only have to do sg. if the mouse button is pressed
hegyi@1499: if(isbutton)
hegyi@1499: {
hegyi@1499: //new coordinates will be the old values,
hegyi@1499: //because the item will be moved to the
hegyi@1499: //new coordinate therefore the new movement
hegyi@1499: //has to be calculated from here
hegyi@1499:
hegyi@1499: double dx=e->motion.x-clicked_x;
hegyi@1499: double dy=e->motion.y-clicked_y;
hegyi@1499:
hegyi@1499: Gnome::Canvas::Points points_new;
hegyi@1499:
hegyi@1499: points_new.push_back(my_points[0]);
hegyi@1499: points_new.push_back(my_points[1]=Gnome::Art::Point(my_points[1].get_x()+dx,my_points[1].get_y()+dy));
hegyi@1499: points_new.push_back(my_points[2]);
hegyi@1499:
hegyi@1524: setPoints(points_new);
hegyi@1524: gdc.textReposition(xy<double>(my_points[1].get_x(),my_points[1].get_y()));
hegyi@1499:
hegyi@1499: clicked_x=e->motion.x;
hegyi@1499: clicked_y=e->motion.y;
hegyi@1499:
hegyi@1499: }
hegyi@1499: default: break;
hegyi@1499: }
hegyi@1499:
hegyi@1499: return true;
hegyi@1499: }
hegyi@1505:
hegyi@1524: xy<double> BrokenEdge::getArrowPos()
hegyi@1505: {
hegyi@1505: xy<double> ret_val(my_points[1].get_x(),my_points[1].get_y());
hegyi@1505: return ret_val;
hegyi@1505: }