1 #include "graph_displayer_canvas.h"
2 #include "broken_edge.h"
6 bool GraphDisplayerCanvas::on_expose_event(GdkEventExpose *event)
8 Gnome::Canvas::CanvasAA::on_expose_event(event);
14 void GraphDisplayerCanvas::changeEditorialTool(int newtool)
16 if(actual_tool!=newtool)
19 actual_handler.disconnect();
25 GdkEvent * generated=new GdkEvent();
26 generated->type=GDK_BUTTON_RELEASE;
27 generated->button.button=3;
28 createEdgeEventHandler(generated);
32 //has to do the same thing as in the case of NODE_MAP_EDIT
52 actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::moveEventHandler), false);
56 actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::createNodeEventHandler), false);
60 actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::createEdgeEventHandler), false);
64 actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::eraserEventHandler), false);
69 actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::edgeMapEditEventHandler), false);
73 actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::nodeMapEditEventHandler), false);
82 int GraphDisplayerCanvas::getActualTool()
87 bool GraphDisplayerCanvas::moveEventHandler(GdkEvent* e)
91 case GDK_BUTTON_PRESS:
92 //we mark the location of the event to be able to calculate parameters of dragging
93 window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
95 active_item=(get_item_at(clicked_x, clicked_y));
97 for (NodeIt i(mapstorage.graph); i!=INVALID; ++i)
99 if(nodesmap[i]==active_item)
104 switch(e->button.button)
114 case GDK_BUTTON_RELEASE:
119 case GDK_MOTION_NOTIFY:
120 //we only have to do sg. if the mouse button is pressed AND the click was on a node that was found in the set of nodes
121 if(active_node!=INVALID)
123 mapstorage.modified = true;
124 mapstorage.coords.set(active_node, xy<double>(clicked_x, clicked_y));
125 //new coordinates will be the old values,
126 //because the item will be moved to the
127 //new coordinate therefore the new movement
128 //has to be calculated from here
132 window_to_world (e->motion.x, e->motion.y, new_x, new_y);
134 double dx=new_x-clicked_x;
135 double dy=new_y-clicked_y;
137 //repositioning node and its text
138 active_item->move(dx, dy);
139 nodetextmap[active_node]->move(dx, dy);
144 //all the edges connected to the moved point has to be redrawn
147 mapstorage.graph.firstOut(ei,active_node);
149 for(;ei!=INVALID;mapstorage.graph.nextOut(ei))
151 Gnome::Canvas::Points coos;
152 double x1, x2, y1, y2;
154 nodesmap[mapstorage.graph.source(ei)]->get_bounds(x1, y1, x2, y2);
155 coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
157 nodesmap[mapstorage.graph.target(ei)]->get_bounds(x1, y1, x2, y2);
158 coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
162 edgesmap[ei]->setPoints(coos);
166 edgesmap[ei]->setPoints(coos,true);
169 //reposition of edgetext
170 xy<double> text_pos=edgesmap[ei]->getArrowPos();
171 text_pos+=(xy<double>(10,10));
172 edgetextmap[ei]->property_x().set_value(text_pos.x);
173 edgetextmap[ei]->property_y().set_value(text_pos.y);
176 mapstorage.graph.firstIn(ei,active_node);
177 for(;ei!=INVALID;mapstorage.graph.nextIn(ei))
179 Gnome::Canvas::Points coos;
180 double x1, x2, y1, y2;
182 nodesmap[mapstorage.graph.source(ei)]->get_bounds(x1, y1, x2, y2);
183 coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
185 nodesmap[mapstorage.graph.target(ei)]->get_bounds(x1, y1, x2, y2);
186 coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
190 edgesmap[ei]->setPoints(coos);
194 edgesmap[ei]->setPoints(coos,true);
197 xy<double> text_pos=edgesmap[ei]->getArrowPos();
198 text_pos+=(xy<double>(10,10));
199 edgetextmap[ei]->property_x().set_value(text_pos.x);
200 edgetextmap[ei]->property_y().set_value(text_pos.y);
209 bool GraphDisplayerCanvas::createNodeEventHandler(GdkEvent* e)
214 case GDK_MOTION_NOTIFY:
216 GdkEvent * generated=new GdkEvent();
217 generated->motion.x=e->motion.x;
218 generated->motion.y=e->motion.y;
219 generated->type=GDK_MOTION_NOTIFY;
220 moveEventHandler(generated);
224 case GDK_BUTTON_RELEASE:
225 mapstorage.modified = true;
229 active_node=mapstorage.graph.addNode();
231 //initiating values corresponding to new node in maps
233 window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
235 // update coordinates
236 mapstorage.coords.set(active_node, xy<double>(clicked_x, clicked_y));
238 // update all other maps
239 for (std::map<std::string, Graph::NodeMap<double>*>::const_iterator it =
240 mapstorage.nodemap_storage.begin(); it !=
241 mapstorage.nodemap_storage.end(); ++it)
243 if ((it->first != "coordinates_x") &&
244 (it->first != "coordinates_y"))
246 (*(it->second))[active_node] =
247 mapstorage.nodemap_default[it->first];
250 // increment the id map's default value
251 mapstorage.nodemap_default["id"] += 1.0;
253 nodesmap[active_node]=new Gnome::Canvas::Ellipse(displayed_graph,
254 clicked_x-20, clicked_y-20, clicked_x+20, clicked_y+20);
255 active_item=(Gnome::Canvas::Item *)(nodesmap[active_node]);
256 *(nodesmap[active_node]) <<
257 Gnome::Canvas::Properties::fill_color("blue");
258 *(nodesmap[active_node]) <<
259 Gnome::Canvas::Properties::outline_color("black");
260 active_item->raise_to_top();
262 (nodesmap[active_node])->show();
264 nodetextmap[active_node]=new Gnome::Canvas::Text(displayed_graph,
265 clicked_x+node_property_defaults[N_RADIUS]+5,
266 clicked_y+node_property_defaults[N_RADIUS]+5, "");
267 nodetextmap[active_node]->property_fill_color().set_value("darkblue");
268 nodetextmap[active_node]->raise_to_top();
270 mapwin.updateNode(active_node);
284 bool GraphDisplayerCanvas::createEdgeEventHandler(GdkEvent* e)
288 case GDK_BUTTON_PRESS:
289 //in edge creation right button has special meaning
290 if(e->button.button!=3)
292 //there is not yet selected node
293 if(active_node==INVALID)
295 //we mark the location of the event to be able to calculate parameters of dragging
297 window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
299 active_item=(get_item_at(clicked_x, clicked_y));
301 for (NodeIt i(mapstorage.graph); i!=INVALID; ++i)
303 if(nodesmap[i]==active_item)
308 //the clicked item is really a node
309 if(active_node!=INVALID)
311 *(nodesmap[active_node]) << Gnome::Canvas::Properties::fill_color("red");
314 //clicked item was not a node. It could be e.g. edge.
320 //we only have to do sg. if the mouse button
321 // is pressed already once AND the click was
322 // on a node that was found in the set of
323 //nodes, and now we only search for the second
327 window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
328 target_item=(get_item_at(clicked_x, clicked_y));
329 Node target_node=INVALID;
330 for (NodeIt i(mapstorage.graph); i!=INVALID; ++i)
332 if(nodesmap[i]==target_item)
337 //the clicked item is a node, the edge can be drawn
338 if(target_node!=INVALID)
340 if(target_node!=active_node)
342 mapstorage.modified = true;
344 *(nodesmap[target_node]) <<
345 Gnome::Canvas::Properties::fill_color("red");
348 active_edge=mapstorage.graph.addEdge(active_node,
352 for (std::map<std::string,
353 Graph::EdgeMap<double>*>::const_iterator it =
354 mapstorage.edgemap_storage.begin(); it !=
355 mapstorage.edgemap_storage.end(); ++it)
357 (*(it->second))[active_edge] =
358 mapstorage.edgemap_default[it->first];
360 // increment the id map's default value
361 mapstorage.edgemap_default["id"] += 1.0;
363 //calculating coordinates of new edge
364 Gnome::Canvas::Points coos;
365 double x1, x2, y1, y2;
367 active_item->get_bounds(x1, y1, x2, y2);
368 coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
370 target_item->get_bounds(x1, y1, x2, y2);
371 coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
374 edgesmap[active_edge]=new BrokenEdge(displayed_graph, coos,
376 *(edgesmap[active_edge]) <<
377 Gnome::Canvas::Properties::fill_color("green");
378 edgesmap[active_edge]->property_width_pixels().set_value(10);
380 edgesmap[active_edge]->lower_to_bottom();
382 //initializing edge-text as well, to empty string
383 xy<double> text_pos=edgesmap[active_edge]->getArrowPos();
384 text_pos+=(xy<double>(10,10));
386 edgetextmap[active_edge]=new Gnome::Canvas::Text(displayed_graph,
387 text_pos.x, text_pos.y, "");
388 edgetextmap[active_edge]->property_fill_color().set_value(
390 edgetextmap[active_edge]->raise_to_top();
392 //updating its properties
393 mapwin.updateEdge(active_edge);
398 std::cerr << "Loop edge is not yet implemented!" << std::endl;
401 //clicked item was not a node. it could be an e.g. edge. we do not
402 //deal with it furthermore.
410 case GDK_BUTTON_RELEASE:
412 //we clear settings in two cases
413 //1: the edge is ready (target_item has valid value)
414 //2: the edge creation is cancelled with right button
415 if((target_item)||(e->button.button==3))
419 *active_item << Gnome::Canvas::Properties::fill_color("blue");
424 *target_item << Gnome::Canvas::Properties::fill_color("blue");
437 bool GraphDisplayerCanvas::eraserEventHandler(GdkEvent* e)
441 case GDK_BUTTON_PRESS:
442 //finding the clicked items
443 window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
444 active_item=(get_item_at(clicked_x, clicked_y));
448 for (NodeIt i(mapstorage.graph); i!=INVALID; ++i)
450 if(nodesmap[i]==active_item)
456 if(active_node==INVALID)
458 for (EdgeIt i(mapstorage.graph); i!=INVALID; ++i)
460 if(edgesmap[i]==active_item)
467 //recolor activated item
470 *active_item << Gnome::Canvas::Properties::fill_color("red");
474 case GDK_BUTTON_RELEASE:
475 window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
478 //the cursor was not moved since pressing it
479 if( active_item == ( get_item_at (clicked_x, clicked_y) ) )
482 if(active_node!=INVALID)
484 mapstorage.modified = true;
486 //collecting edges to delete
488 std::set<Graph::Edge> edges_to_delete;
490 mapstorage.graph.firstOut(e,active_node);
491 for(;e!=INVALID;mapstorage.graph.nextOut(e))
493 edges_to_delete.insert(e);
496 mapstorage.graph.firstIn(e,active_node);
497 for(;e!=INVALID;mapstorage.graph.nextIn(e))
499 edges_to_delete.insert(e);
502 //deleting collected edges
503 for(std::set<Graph::Edge>::iterator edge_set_it=edges_to_delete.begin();edge_set_it!=edges_to_delete.end();edge_set_it++)
505 deleteItem(*edge_set_it);
507 deleteItem(active_node);
509 //a simple edge was chosen
512 deleteItem(active_edge);
515 //pointer was moved, deletion is cancelled
518 if(active_node!=INVALID)
520 *active_item << Gnome::Canvas::Properties::fill_color("blue");
524 *active_item << Gnome::Canvas::Properties::fill_color("green");
534 case GDK_MOTION_NOTIFY:
543 bool GraphDisplayerCanvas::edgeMapEditEventHandler(GdkEvent* e)
545 if(actual_tool==EDGE_MAP_EDIT)
549 case GDK_BUTTON_PRESS:
551 //for determine, whether it was an edge
552 Edge clicked_edge=INVALID;
554 window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
555 active_item=(get_item_at(clicked_x, clicked_y));
557 //find the activated item between texts
558 for (EdgeIt i(mapstorage.graph); i!=INVALID; ++i)
560 //at the same time only one can be active
561 if(edgetextmap[i]==active_item)
567 //if it was not between texts, search for it between edges
568 if(clicked_edge==INVALID)
570 for (EdgeIt i(mapstorage.graph); i!=INVALID; ++i)
572 //at the same time only one can be active
573 if((edgesmap[i]==active_item)||(edgetextmap[i]==active_item))
580 //if it was really an edge...
581 if(clicked_edge!=INVALID)
583 // the id map is not editable
584 if (edgemap_to_edit == "id") return 0;
586 //and there is activated map
587 if(edgetextmap[clicked_edge]->property_text().get_value()!="")
589 //activate the general variable for it
590 active_edge=clicked_edge;
593 Gtk::Dialog dialog("Edit value", *parentwin, true);
594 dialog.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
595 dialog.add_button(Gtk::Stock::OK, Gtk::RESPONSE_ACCEPT);
596 Gtk::VBox* vbox = dialog.get_vbox();
598 (*mapstorage.edgemap_storage[edgemap_to_edit])[active_edge],
602 //TODO: find out why doesn't it work with
603 //numeric_limits<double>::min/max
604 Gtk::SpinButton spin(adj);
605 spin.set_numeric(true);
609 switch (dialog.run())
611 case Gtk::RESPONSE_NONE:
612 case Gtk::RESPONSE_CANCEL:
614 case Gtk::RESPONSE_ACCEPT:
615 double new_value = spin.get_value();
616 (*mapstorage.edgemap_storage[edgemap_to_edit])[active_edge] =
618 std::ostringstream ostr;
620 edgetextmap[active_edge]->property_text().set_value(
622 //mapwin.updateEdge(active_edge);
623 mapwin.updateEdge(Edge(INVALID));
636 bool GraphDisplayerCanvas::nodeMapEditEventHandler(GdkEvent* e)
638 if(actual_tool==NODE_MAP_EDIT)
642 case GDK_BUTTON_PRESS:
644 //for determine, whether it was a node
645 Node clicked_node=INVALID;
647 window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
648 active_item=(get_item_at(clicked_x, clicked_y));
650 //find the activated item between texts
651 for (NodeIt i(mapstorage.graph); i!=INVALID; ++i)
653 //at the same time only one can be active
654 if(nodetextmap[i]==active_item)
660 //if there was not, search for it between nodes
661 if(clicked_node==INVALID)
663 for (NodeIt i(mapstorage.graph); i!=INVALID; ++i)
665 //at the same time only one can be active
666 if(nodesmap[i]==active_item)
673 //if it was really a node...
674 if(clicked_node!=INVALID)
676 // the id map is not editable
677 if (nodemap_to_edit == "id") return 0;
679 //and there is activated map
680 if(nodetextmap[clicked_node]->property_text().get_value()!="")
682 //activate the general variable for it
683 active_node=clicked_node;
686 Gtk::Dialog dialog("Edit value", *parentwin, true);
687 dialog.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
688 dialog.add_button(Gtk::Stock::OK, Gtk::RESPONSE_ACCEPT);
689 Gtk::VBox* vbox = dialog.get_vbox();
691 (*mapstorage.nodemap_storage[nodemap_to_edit])[active_node],
695 //TODO: find out why doesn't it work with
696 //numeric_limits<double>::min/max
697 Gtk::SpinButton spin(adj);
698 spin.set_numeric(true);
702 switch (dialog.run())
704 case Gtk::RESPONSE_NONE:
705 case Gtk::RESPONSE_CANCEL:
707 case Gtk::RESPONSE_ACCEPT:
708 double new_value = spin.get_value();
709 (*mapstorage.nodemap_storage[nodemap_to_edit])[active_node] =
711 std::ostringstream ostr;
713 nodetextmap[active_node]->property_text().set_value(
715 //mapwin.updateNode(active_node);
716 mapwin.updateNode(Node(INVALID));
729 void GraphDisplayerCanvas::deleteItem(Node node_to_delete)
731 delete(nodetextmap[node_to_delete]);
732 delete(nodesmap[node_to_delete]);
733 mapstorage.graph.erase(node_to_delete);
736 void GraphDisplayerCanvas::deleteItem(Edge edge_to_delete)
738 delete(edgetextmap[edge_to_delete]);
739 delete(edgesmap[edge_to_delete]);
740 mapstorage.graph.erase(edge_to_delete);
743 void GraphDisplayerCanvas::textReposition(xy<double> new_place)
745 new_place+=(xy<double>(10,10));
746 edgetextmap[forming_edge]->property_x().set_value(new_place.x);
747 edgetextmap[forming_edge]->property_y().set_value(new_place.y);
750 void GraphDisplayerCanvas::toggleEdgeActivity(BrokenEdge* active_bre, bool on)
754 if(forming_edge!=INVALID)
756 std::cerr << "ERROR!!!! Valid edge found!" << std::endl;
760 for (EdgeIt i(mapstorage.graph); i!=INVALID; ++i)
762 if(edgesmap[i]==active_bre)
771 if(forming_edge!=INVALID)
773 forming_edge=INVALID;
777 std::cerr << "ERROR!!!! Invalid edge found!" << std::endl;
783 int GraphDisplayerCanvas::addNewEdgeMap(double default_value, std::string mapname)
786 Graph::EdgeMap<double> * emptr=new Graph::EdgeMap<double> (mapstorage.graph, default_value);
788 //if addition was not successful addEdgeMap returns one.
789 //cause can be that there is already a map named like the new one
790 if(mapstorage.addEdgeMap(mapname,emptr, default_value))
796 //add it to the list of the displayable maps
797 mapwin.registerNewEdgeMap(mapname);
800 changeEdgeText(mapname);
805 int GraphDisplayerCanvas::addNewNodeMap(double default_value, std::string mapname)
808 Graph::NodeMap<double> * emptr=new Graph::NodeMap<double> (mapstorage.graph,default_value);
810 //if addition was not successful addNodeMap returns one.
811 //cause can be that there is already a map named like the new one
812 if(mapstorage.addNodeMap(mapname,emptr, default_value))
817 //add it to the list of the displayable maps
818 mapwin.registerNewNodeMap(mapname);
821 changeNodeText(mapname);