1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gui/graph_displayer_canvas.cc Mon May 23 04:48:14 2005 +0000
1.3 @@ -0,0 +1,259 @@
1.4 +#include <graph_displayer_canvas.h>
1.5 +
1.6 +GraphDisplayerCanvas::GraphDisplayerCanvas(Graph & gr, CoordinatesMap & cm, MapStorage & ms):g(gr),nodesmap(g),edgesmap(g),edgetextmap(g),displayed_graph(*(root()), 0, 0),mapstorage(ms),isbutton(false),active_item(NULL)
1.7 +{
1.8 +
1.9 + for (EdgeIt i(g); i!=INVALID; ++i)
1.10 + {
1.11 + Gnome::Canvas::Points coos;
1.12 + coos.push_back(Gnome::Art::Point(cm[g.source(i)].x,cm[g.source(i)].y));
1.13 + coos.push_back(Gnome::Art::Point(cm[g.target(i)].x,cm[g.target(i)].y));
1.14 +
1.15 + edgesmap[i]=new Gnome::Canvas::Line(displayed_graph, coos);
1.16 + *(edgesmap[i]) << Gnome::Canvas::Properties::fill_color("green");
1.17 + edgesmap[i]->property_width_pixels().set_value(10);
1.18 +
1.19 +
1.20 + double x1, x2, y1, y2;
1.21 + edgesmap[i]->get_bounds(x1, y1, x2, y2);
1.22 +
1.23 + edgetextmap[i]=new Gnome::Canvas::Text(displayed_graph,(x1+x2)/2, (y1+y2)/2, "");
1.24 + edgetextmap[i]->property_fill_color().set_value("black");
1.25 + }
1.26 +
1.27 + NodeIt i(g);
1.28 + int maxx=0, maxy=0, minx=(int)cm[i].x, miny=(int)cm[i].y;
1.29 +
1.30 + for (; i!=INVALID; ++i)
1.31 + {
1.32 + if(cm[i].x>maxx)maxx=(int)cm[i].x;
1.33 + if(cm[i].y>maxy)maxy=(int)cm[i].y;
1.34 + if(cm[i].x<minx)minx=(int)cm[i].x;
1.35 + if(cm[i].y<miny)miny=(int)cm[i].y;
1.36 +
1.37 + nodesmap[i]=new Gnome::Canvas::Ellipse(displayed_graph, cm[i].x-20, cm[i].y-20, cm[i].x+20, cm[i].y+20);
1.38 + *(nodesmap[i]) << Gnome::Canvas::Properties::fill_color("blue");
1.39 + *(nodesmap[i]) << Gnome::Canvas::Properties::outline_color("black");
1.40 + (nodesmap[i])->signal_event().connect(sigc::bind(sigc::mem_fun(*this, &GraphDisplayerCanvas::event_handler),i));
1.41 + }
1.42 +
1.43 + double biggest_x=(abs(maxx)>abs(minx))?(abs(maxx)+80):(abs(minx)+80);
1.44 + double biggest_y=(abs(maxy)>abs(miny))?(abs(maxy)+80):(abs(miny)+80);
1.45 +
1.46 + set_pixels_per_unit((biggest_x>biggest_y)?(WIN_WIDTH/biggest_x/2):(WIN_HEIGHT/biggest_y/2));
1.47 + std::cout<<abs(maxx)<<" "<<abs(minx)<<" big x "<<biggest_x<<" "<<abs(maxy)<<" "<<abs(miny)<<" big y "<<biggest_y<<std::endl;
1.48 + std::cout<<maxx<<" "<<minx<<" big x "<<biggest_x<<" "<<maxy<<" "<<miny<<" big y "<<biggest_y<<std::endl;
1.49 + std::cout<<"dx "<<(maxx-minx)<<" dy "<<(maxy-miny)<<" xrate "<<((maxx-minx)/WIN_WIDTH)<<" yrate "<<((maxy-miny)/WIN_HEIGHT)<<std::endl;
1.50 +
1.51 +}
1.52 +
1.53 +GraphDisplayerCanvas::~GraphDisplayerCanvas()
1.54 +{
1.55 + Graph::NodeMap <int> id(g);
1.56 + Graph::NodeMap <double> xc(g);
1.57 + Graph::NodeMap <double> yc(g);
1.58 +
1.59 + int j=1;
1.60 +
1.61 + for (NodeIt i(g); i!=INVALID; ++i)
1.62 + {
1.63 + double x1,y1,x2,y2;
1.64 + nodesmap[i]->get_bounds(x1, y1, x2, y2);
1.65 +
1.66 + id[i]=j++;
1.67 + xc[i]=(x1+x2)/2;
1.68 + yc[i]=(y1+y2)/2;
1.69 + }
1.70 +
1.71 + GraphWriter<Graph> writer(std::cout,g);
1.72 +
1.73 + writer.writeNodeMap("id", id);
1.74 + writer.writeNodeMap("coordinates_x", xc);
1.75 + writer.writeNodeMap("coordinates_y", yc);
1.76 + writer.run();
1.77 +}
1.78 +
1.79 +int GraphDisplayerCanvas::changeLineWidth (std::string mapname)
1.80 +{
1.81 + for (EdgeIt i(g); i!=INVALID; ++i)
1.82 + {
1.83 + int w=(int)(*(mapstorage.edgemap_storage)[mapname])[i];
1.84 + edgesmap[i]->property_width_pixels().set_value(w);
1.85 + }
1.86 + return 0;
1.87 +};
1.88 +
1.89 +int GraphDisplayerCanvas::changeColor (std::string mapname)
1.90 +{
1.91 + for (EdgeIt i(g); i!=INVALID; ++i)
1.92 + {
1.93 + double w=(*(mapstorage.edgemap_storage)[mapname])[i];
1.94 + double max=mapstorage.maxOfEdgeMap(mapname);
1.95 + double min=mapstorage.minOfEdgeMap(mapname);
1.96 +
1.97 + //std::cout<<w<<" "<<max<<" "<<min<<" "<<100*(w-min)/(max-min)<<std::endl;
1.98 + Gdk::Color color;
1.99 + if(max!=min)
1.100 + {
1.101 + color.set_rgb_p (0, 100*(w-min)/(max-min), 0);
1.102 + }
1.103 + else
1.104 + {
1.105 + color.set_rgb_p (0, 100, 0);
1.106 + }
1.107 +
1.108 + edgesmap[i]->property_fill_color_gdk().set_value(color);
1.109 + }
1.110 + return 0;
1.111 +};
1.112 +
1.113 +int GraphDisplayerCanvas::changeText (std::string mapname)
1.114 +{
1.115 + for (EdgeIt i(g); i!=INVALID; ++i)
1.116 + {
1.117 + if(mapname!="Text")
1.118 + {
1.119 + double number=(*(mapstorage.edgemap_storage)[mapname])[i];
1.120 + int length=(int)(floor(log(number)/log(10)))+1;
1.121 + int maxpos=(int)(pow(10,length-1));
1.122 + int strl=length+1+RANGE;
1.123 + char * str=new char[strl];
1.124 + str[length]='.';
1.125 + str[strl]='\0';
1.126 +
1.127 + for(int j=0;j<strl;j++)
1.128 + {
1.129 + if(j!=length)
1.130 + {
1.131 + int digit=(int)(number/maxpos);
1.132 + str[j]=(digit+'0');
1.133 + number-=digit*maxpos;
1.134 + number*=10;
1.135 + }
1.136 + }
1.137 +
1.138 + edgetextmap[i]->property_text().set_value(str);
1.139 + }
1.140 + else
1.141 + {
1.142 + edgetextmap[i]->property_text().set_value("");
1.143 + }
1.144 + }
1.145 + return 0;
1.146 +};
1.147 +
1.148 +
1.149 +int GraphDisplayerCanvas::rezoom ()
1.150 +{
1.151 + double x1, x2, y1, y2;
1.152 + int x,y;
1.153 +
1.154 + NodeIt i(g);
1.155 + nodesmap[i]->get_bounds(x1, y1, x2, y2);
1.156 +
1.157 + x=(int)((x1+x2)/2);
1.158 + y=(int)((y1+y2)/2);
1.159 +
1.160 + int maxx=0, maxy=0, minx=(int)x, miny=(int)y;
1.161 +
1.162 + for (; i!=INVALID; ++i)
1.163 + {
1.164 + nodesmap[i]->get_bounds(x1, y1, x2, y2);
1.165 +
1.166 + x=(int)((x1+x2)/2);
1.167 + y=(int)((y1+y2)/2);
1.168 +
1.169 + if(x>maxx)maxx=x;
1.170 + if(y>maxy)maxy=y;
1.171 + if(x<minx)minx=x;
1.172 + if(y<miny)miny=y;
1.173 + }
1.174 +
1.175 + double biggest_x=(abs(maxx)>abs(minx))?(abs(maxx)+80):(abs(minx)+80);
1.176 + double biggest_y=(abs(maxy)>abs(miny))?(abs(maxy)+80):(abs(miny)+80);
1.177 +
1.178 + set_pixels_per_unit((biggest_x-WIN_WIDTH>biggest_y-WIN_HEIGHT)?(WIN_WIDTH/biggest_x/2):(WIN_HEIGHT/biggest_y/2));
1.179 + return 0;
1.180 +};
1.181 +
1.182 +
1.183 +///This function moves only one node of displayed_graph,
1.184 +///but recalculate the location of weight point,
1.185 +///and also redraw the sides of the planefigure.
1.186 +bool GraphDisplayerCanvas::event_handler(GdkEvent* e, Node n)
1.187 +{
1.188 + switch(e->type)
1.189 + {
1.190 + case GDK_BUTTON_PRESS:
1.191 + clicked_x=e->button.x;
1.192 + clicked_y=e->button.y;
1.193 + active_item=(get_item_at(e->button.x, e->button.y));
1.194 + isbutton=true;
1.195 + break;
1.196 + case GDK_BUTTON_RELEASE:
1.197 + isbutton=false;
1.198 + active_item=NULL;
1.199 + break;
1.200 + case GDK_MOTION_NOTIFY:
1.201 + if(isbutton)
1.202 + {
1.203 + double dx=e->motion.x-clicked_x;
1.204 + double dy=e->motion.y-clicked_y;
1.205 + active_item->move(dx, dy);
1.206 + clicked_x=e->motion.x;
1.207 + clicked_y=e->motion.y;
1.208 +
1.209 + EdgeIt e;
1.210 +
1.211 + g.firstOut(e,n);
1.212 + for(;e!=INVALID;g.nextOut(e))
1.213 + {
1.214 + Gnome::Canvas::Points coos;
1.215 + double x1, x2, y1, y2;
1.216 +
1.217 + nodesmap[g.source(e)]->get_bounds(x1, y1, x2, y2);
1.218 + coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
1.219 +
1.220 + nodesmap[g.target(e)]->get_bounds(x1, y1, x2, y2);
1.221 + coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
1.222 +
1.223 + edgesmap[e]->property_points().set_value(coos);
1.224 +
1.225 + edgesmap[e]->get_bounds(x1, y1, x2, y2);
1.226 +
1.227 + edgetextmap[e]->property_x().set_value((x1+x2)/2);
1.228 + edgetextmap[e]->property_y().set_value((y1+y2)/2);
1.229 + }
1.230 +
1.231 + g.firstIn(e,n);
1.232 + for(;e!=INVALID;g.nextIn(e))
1.233 + {
1.234 + Gnome::Canvas::Points coos;
1.235 + double x1, x2, y1, y2;
1.236 +
1.237 + nodesmap[g.source(e)]->get_bounds(x1, y1, x2, y2);
1.238 + coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
1.239 +
1.240 + nodesmap[g.target(e)]->get_bounds(x1, y1, x2, y2);
1.241 + coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
1.242 +
1.243 + edgesmap[e]->property_points().set_value(coos);
1.244 +
1.245 + edgesmap[e]->get_bounds(x1, y1, x2, y2);
1.246 +
1.247 + edgetextmap[e]->property_x().set_value((x1+x2)/2);
1.248 + edgetextmap[e]->property_y().set_value((y1+y2)/2);
1.249 + }
1.250 + }
1.251 + default: break;
1.252 + }
1.253 + return true;
1.254 +}
1.255 +
1.256 +bool GraphDisplayerCanvas::on_expose_event(GdkEventExpose *event)
1.257 +{
1.258 + Gnome::Canvas::CanvasAA::on_expose_event(event);
1.259 + //usleep(10000);
1.260 + //rezoom();
1.261 + return true;
1.262 +}