Changeset 98:f60f89147531 in glemon-0.x for gdc-broken_edge.cc
- Timestamp:
- 12/17/05 21:55:41 (19 years ago)
- Branch:
- gui
- Phase:
- public
- Convert:
- svn:c9d7d8f5-90d6-0310-b91f-818b3a526b0e/lemon/trunk/gui@2432
- File:
-
- 1 edited
Legend:
- Unmodified
- Added
- Removed
-
gdc-broken_edge.cc
r93 r98 2 2 #include <cmath> 3 3 4 GraphDisplayerCanvas::BrokenEdge::BrokenEdge(Gnome::Canvas::Group & g, Gnome::Canvas::Points p, GraphDisplayerCanvas & gc) : Line(g), gdc(gc), isbutton(false)4 GraphDisplayerCanvas::BrokenEdge::BrokenEdge(Gnome::Canvas::Group & g, Edge _edge, GraphDisplayerCanvas & gc) : Line(g), edge(_edge), gdc(gc), isbutton(false) 5 5 { 6 my_points=new Gnome::Art::Point[3];7 8 6 arrow=new Gnome::Canvas::Polygon(g); 9 7 *arrow << Gnome::Canvas::Properties::fill_color("red"); 10 8 arrow->signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::BrokenEdge::edgeFormerEventHandler)); 11 9 arrow->lower_to_bottom(); 12 setPoints(p);10 draw(); 13 11 } 14 12 … … 18 16 } 19 17 20 void GraphDisplayerCanvas::BrokenEdge:: setPoints(Gnome::Canvas::Points p, bool move)18 void GraphDisplayerCanvas::BrokenEdge::draw() 21 19 { 22 bool set_arrow=false; 23 //red arrow losts its position-right button 24 if(!move) 25 { 26 if(p.size()==2) 27 { 28 set_arrow=true; 29 Gnome::Canvas::Points points_with_center; 30 points_with_center.push_back(my_points[0]=p[0]); 31 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 ); 32 points_with_center.push_back(my_points[2]=p[1]); 33 property_points().set_value(points_with_center); 34 } 35 if(p.size()==3) 36 { 37 set_arrow=true; 38 property_points().set_value(p); 39 for(int i=0;i<3;i++) 40 { 41 my_points[i]=p[i]; 42 } 43 } 20 MapStorage& ms = gdc.mytab.mapstorage; 21 22 // update the edge 23 { 24 Gnome::Canvas::Points points; 25 Node source = ms.graph.source(edge); 26 Node target = ms.graph.target(edge); 27 points.push_back(Gnome::Art::Point(ms.coords[source].x, 28 ms.coords[source].y)); 29 points.push_back(Gnome::Art::Point(ms.arrow_pos[edge].x, 30 ms.arrow_pos[edge].y)); 31 points.push_back(Gnome::Art::Point(ms.coords[target].x, 32 ms.coords[target].y)); 33 property_points().set_value(points); 34 } 35 36 // update the arrow 37 { 38 //calculating coordinates of the direction indicator arrow 39 XY target(ms.coords[ms.graph.target(edge)]); 40 XY center(ms.arrow_pos[edge]); 41 42 XY unit_vector_in_dir(target-center); 43 double length=sqrt( unit_vector_in_dir.normSquare() ); 44 45 // std::cout << target << " - " << center << " = " << unit_vector_in_dir << " / " <<unit_vector_in_dir.normSquare() ; 46 unit_vector_in_dir/=length; 47 // std::cout << " = " << unit_vector_in_dir << std::endl; 48 49 XY unit_norm_vector(0-unit_vector_in_dir.y, unit_vector_in_dir.x); 50 // std::cout << unit_norm_vector << std::endl; 51 52 { 53 // /\ // top 54 // / \ // 55 // - - // c(enter)l(eft), ccl, ccr, cr 56 // || // 57 // || // b(ottom)l, br 44 58 } 45 else46 {47 //arrow keeps its position-left button48 59 49 // if(p.size()==2) 50 // { 51 // Gnome::Canvas::Points points; 52 // my_points[0]=p[0]; 53 // my_points[2]=p[1]; 54 // for(int i=0;i<3;i++) 55 // { 56 // points.push_back(my_points[i]); 57 // } 58 // property_points().set_value(points); 59 // } 60 set_arrow=true; 60 double size=3; 61 61 62 ////////////////////////////////////////////////////////////////////////////////////////////////////// 63 /////////// keeps shape-with scalar multiplication - version 2. 64 ////////////////////////////////////////////////////////////////////////////////////////////////////// 62 XY bl (center - unit_vector_in_dir * 3 * size + unit_norm_vector * size ); 63 XY br (center - unit_vector_in_dir * 3 * size - unit_norm_vector * size ); 64 XY ccl(center + unit_vector_in_dir * size + unit_norm_vector * size ); 65 XY ccr(center + unit_vector_in_dir * size - unit_norm_vector * size ); 66 XY cl (center + unit_vector_in_dir * size + unit_norm_vector * 2 * size ); 67 XY cr (center + unit_vector_in_dir * size - unit_norm_vector * 2 * size ); 68 XY top(center + unit_vector_in_dir * 3 * size); 65 69 66 if(p.size()==2) 67 { 68 //old vector from one to the other node - a 69 xy<double> a_v(my_points[2].get_x()-my_points[0].get_x(),my_points[2].get_y()-my_points[0].get_y()); 70 //new vector from one to the other node - b 71 xy<double> b_v(p[1].get_x()-p[0].get_x(),p[1].get_y()-p[0].get_y()); 70 //std::cout << bl << " " << br << " " << ccl << " " << ccr << " " << cl << " " << cr << " " << top << std::endl; 72 71 73 double absa=sqrt(a_v.normSquare()); 74 double absb=sqrt(b_v.normSquare()); 72 Gnome::Canvas::Points arrow_points; 73 arrow_points.push_back(Gnome::Art::Point( bl.x , bl.y ) ); 74 arrow_points.push_back(Gnome::Art::Point( br.x , br.y ) ); 75 arrow_points.push_back(Gnome::Art::Point( ccr.x, ccr.y ) ); 76 arrow_points.push_back(Gnome::Art::Point( cr.x , cr.y ) ); 77 arrow_points.push_back(Gnome::Art::Point( top.x, top.y ) ); 78 arrow_points.push_back(Gnome::Art::Point( cl.x , cl.y ) ); 79 arrow_points.push_back(Gnome::Art::Point( ccl.x, ccl.y ) ); 75 80 76 if((absa!=0)&&(absb!=0)) 77 { 78 //old vector from one node to the breakpoint - c 79 xy<double> c_v(my_points[1].get_x()-my_points[0].get_x(),my_points[1].get_y()-my_points[0].get_y()); 80 81 //unit vector with the same direction to a_v 82 xy<double> a_v_u(a_v.x/absa,a_v.y/absa); 83 84 //normal vector of unit vector with the same direction to a_v 85 xy<double> a_v_u_n(((-1)*a_v_u.y),a_v_u.x); 86 87 //unit vector with the same direction to b_v 88 xy<double> b_v_u(b_v.x/absb,b_v.y/absb); 89 90 //normal vector of unit vector with the same direction to b_v 91 xy<double> b_v_u_n(((-1)*b_v_u.y),b_v_u.x); 92 93 //vector c in a_v_u and a_v_u_n co-ordinate system 94 xy<double> c_a(c_v*a_v_u,c_v*a_v_u_n); 95 96 //new vector from one node to the breakpoint - d - we have to calculate this one 97 xy<double> d_v=absb/absa*(c_a.x*b_v_u+c_a.y*b_v_u_n); 98 99 my_points[1]=Gnome::Art::Point(d_v.x+p[0].get_x(),d_v.y+p[0].get_y()); 100 101 my_points[0]=p[0]; 102 my_points[2]=p[1]; 103 104 Gnome::Canvas::Points points; 105 for(int i=0;i<3;i++) 106 { 107 points.push_back(my_points[i]); 108 } 109 property_points().set_value(points); 110 } 111 else 112 { 113 //if distance is 0, segmentation would be occured 114 //in calculations, because of division by zero 115 //But we have luck: the edge cannot be seen in 116 //this case, so no update needed 117 set_arrow=false; 118 } 119 } 120 } 121 if(set_arrow) 122 { 123 //calculating coordinates of the direction indicator arrow 124 125 xy<gdouble> target( my_points[2].get_x(), my_points[2].get_y() ); 126 xy<gdouble> center( my_points[1].get_x(), my_points[1].get_y() ); 127 128 xy<gdouble> unit_vector_in_dir(target-center); 129 double length=sqrt( unit_vector_in_dir.normSquare() ); 130 131 // std::cout << target << " - " << center << " = " << unit_vector_in_dir << " / " <<unit_vector_in_dir.normSquare() ; 132 unit_vector_in_dir/=length; 133 // std::cout << " = " << unit_vector_in_dir << std::endl; 134 135 xy<gdouble> unit_norm_vector(0-unit_vector_in_dir.y, unit_vector_in_dir.x); 136 // std::cout << unit_norm_vector << std::endl; 137 138 { 139 // /\ // top 140 // / \ // 141 // - - // c(enter)l(eft), ccl, ccr, cr 142 // || // 143 // || // b(ottom)l, br 144 } 145 146 double size=3; 147 148 xy<gdouble> bl (center - unit_vector_in_dir * 3 * size + unit_norm_vector * size ); 149 xy<gdouble> br (center - unit_vector_in_dir * 3 * size - unit_norm_vector * size ); 150 xy<gdouble> ccl(center + unit_vector_in_dir * size + unit_norm_vector * size ); 151 xy<gdouble> ccr(center + unit_vector_in_dir * size - unit_norm_vector * size ); 152 xy<gdouble> cl (center + unit_vector_in_dir * size + unit_norm_vector * 2 * size ); 153 xy<gdouble> cr (center + unit_vector_in_dir * size - unit_norm_vector * 2 * size ); 154 xy<gdouble> top(center + unit_vector_in_dir * 3 * size); 155 156 //std::cout << bl << " " << br << " " << ccl << " " << ccr << " " << cl << " " << cr << " " << top << std::endl; 157 158 Gnome::Canvas::Points arrow_points; 159 arrow_points.push_back(Gnome::Art::Point( bl.x , bl.y ) ); 160 arrow_points.push_back(Gnome::Art::Point( br.x , br.y ) ); 161 arrow_points.push_back(Gnome::Art::Point( ccr.x, ccr.y ) ); 162 arrow_points.push_back(Gnome::Art::Point( cr.x , cr.y ) ); 163 arrow_points.push_back(Gnome::Art::Point( top.x, top.y ) ); 164 arrow_points.push_back(Gnome::Art::Point( cl.x , cl.y ) ); 165 arrow_points.push_back(Gnome::Art::Point( ccl.x, ccl.y ) ); 166 167 arrow->property_points().set_value(arrow_points); 168 } 81 arrow->property_points().set_value(arrow_points); 82 } 169 83 } 170 84 … … 204 118 Gnome::Canvas::Points points_new; 205 119 206 points_new.push_back(my_points[0]); 207 points_new.push_back(my_points[1]=Gnome::Art::Point(my_points[1].get_x()+dx,my_points[1].get_y()+dy)); 208 points_new.push_back(my_points[2]); 120 gdc.mytab.mapstorage.arrow_pos.set(edge, gdc.mytab.mapstorage.arrow_pos[edge] + XY(dx, dy)); 209 121 210 setPoints(points_new);211 gdc.textReposition( xy<double>(my_points[1].get_x(),my_points[1].get_y()));122 draw(); 123 gdc.textReposition(gdc.mytab.mapstorage.arrow_pos[edge]); 212 124 213 125 clicked_x=e->motion.x; … … 220 132 return true; 221 133 } 222 223 xy<double> GraphDisplayerCanvas::BrokenEdge::getArrowPos()224 {225 xy<double> ret_val(my_points[1].get_x(),my_points[1].get_y());226 return ret_val;227 }
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