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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);
145 for(OutEdgeIt ei(mapstorage.graph,active_node);ei!=INVALID;++ei)
147 Gnome::Canvas::Points coos;
148 double x1, x2, y1, y2;
150 nodesmap[mapstorage.graph.source(ei)]->get_bounds(x1, y1, x2, y2);
151 coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
153 nodesmap[mapstorage.graph.target(ei)]->get_bounds(x1, y1, x2, y2);
154 coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
158 edgesmap[ei]->setPoints(coos);
162 edgesmap[ei]->setPoints(coos,true);
165 //reposition of edgetext
166 xy<double> text_pos=edgesmap[ei]->getArrowPos();
167 text_pos+=(xy<double>(10,10));
168 edgetextmap[ei]->property_x().set_value(text_pos.x);
169 edgetextmap[ei]->property_y().set_value(text_pos.y);
172 for(InEdgeIt ei(mapstorage.graph,active_node);ei!=INVALID;++ei)
174 Gnome::Canvas::Points coos;
175 double x1, x2, y1, y2;
177 nodesmap[mapstorage.graph.source(ei)]->get_bounds(x1, y1, x2, y2);
178 coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
180 nodesmap[mapstorage.graph.target(ei)]->get_bounds(x1, y1, x2, y2);
181 coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
185 edgesmap[ei]->setPoints(coos);
189 edgesmap[ei]->setPoints(coos,true);
192 xy<double> text_pos=edgesmap[ei]->getArrowPos();
193 text_pos+=(xy<double>(10,10));
194 edgetextmap[ei]->property_x().set_value(text_pos.x);
195 edgetextmap[ei]->property_y().set_value(text_pos.y);
204 bool GraphDisplayerCanvas::createNodeEventHandler(GdkEvent* e)
209 case GDK_MOTION_NOTIFY:
211 GdkEvent * generated=new GdkEvent();
212 generated->motion.x=e->motion.x;
213 generated->motion.y=e->motion.y;
214 generated->type=GDK_MOTION_NOTIFY;
215 moveEventHandler(generated);
219 case GDK_BUTTON_RELEASE:
220 mapstorage.modified = true;
224 active_node=mapstorage.graph.addNode();
226 //initiating values corresponding to new node in maps
228 window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
230 // update coordinates
231 mapstorage.coords.set(active_node, xy<double>(clicked_x, clicked_y));
233 // update all other maps
234 for (std::map<std::string, Graph::NodeMap<double>*>::const_iterator it =
235 mapstorage.nodemap_storage.begin(); it !=
236 mapstorage.nodemap_storage.end(); ++it)
238 if ((it->first != "coordinates_x") &&
239 (it->first != "coordinates_y"))
241 (*(it->second))[active_node] =
242 mapstorage.nodemap_default[it->first];
245 // increment the id map's default value
246 mapstorage.nodemap_default["id"] += 1.0;
248 nodesmap[active_node]=new Gnome::Canvas::Ellipse(displayed_graph,
249 clicked_x-20, clicked_y-20, clicked_x+20, clicked_y+20);
250 active_item=(Gnome::Canvas::Item *)(nodesmap[active_node]);
251 *(nodesmap[active_node]) <<
252 Gnome::Canvas::Properties::fill_color("blue");
253 *(nodesmap[active_node]) <<
254 Gnome::Canvas::Properties::outline_color("black");
255 active_item->raise_to_top();
257 (nodesmap[active_node])->show();
259 nodetextmap[active_node]=new Gnome::Canvas::Text(displayed_graph,
260 clicked_x+node_property_defaults[N_RADIUS]+5,
261 clicked_y+node_property_defaults[N_RADIUS]+5, "");
262 nodetextmap[active_node]->property_fill_color().set_value("darkblue");
263 nodetextmap[active_node]->raise_to_top();
265 mapwin.updateNode(active_node);
279 bool GraphDisplayerCanvas::createEdgeEventHandler(GdkEvent* e)
283 case GDK_BUTTON_PRESS:
284 //in edge creation right button has special meaning
285 if(e->button.button!=3)
287 //there is not yet selected node
288 if(active_node==INVALID)
290 //we mark the location of the event to be able to calculate parameters of dragging
292 window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
294 active_item=(get_item_at(clicked_x, clicked_y));
296 for (NodeIt i(mapstorage.graph); i!=INVALID; ++i)
298 if(nodesmap[i]==active_item)
303 //the clicked item is really a node
304 if(active_node!=INVALID)
306 *(nodesmap[active_node]) << Gnome::Canvas::Properties::fill_color("red");
309 //clicked item was not a node. It could be e.g. edge.
315 //we only have to do sg. if the mouse button
316 // is pressed already once AND the click was
317 // on a node that was found in the set of
318 //nodes, and now we only search for the second
322 window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
323 target_item=(get_item_at(clicked_x, clicked_y));
324 Node target_node=INVALID;
325 for (NodeIt i(mapstorage.graph); i!=INVALID; ++i)
327 if(nodesmap[i]==target_item)
332 //the clicked item is a node, the edge can be drawn
333 if(target_node!=INVALID)
335 if(target_node!=active_node)
337 mapstorage.modified = true;
339 *(nodesmap[target_node]) <<
340 Gnome::Canvas::Properties::fill_color("red");
343 active_edge=mapstorage.graph.addEdge(active_node,
347 for (std::map<std::string,
348 Graph::EdgeMap<double>*>::const_iterator it =
349 mapstorage.edgemap_storage.begin(); it !=
350 mapstorage.edgemap_storage.end(); ++it)
352 (*(it->second))[active_edge] =
353 mapstorage.edgemap_default[it->first];
355 // increment the id map's default value
356 mapstorage.edgemap_default["id"] += 1.0;
358 //calculating coordinates of new edge
359 Gnome::Canvas::Points coos;
360 double x1, x2, y1, y2;
362 active_item->get_bounds(x1, y1, x2, y2);
363 coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
365 target_item->get_bounds(x1, y1, x2, y2);
366 coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
369 edgesmap[active_edge]=new BrokenEdge(displayed_graph, coos,
371 *(edgesmap[active_edge]) <<
372 Gnome::Canvas::Properties::fill_color("green");
373 edgesmap[active_edge]->property_width_pixels().set_value(10);
375 edgesmap[active_edge]->lower_to_bottom();
377 //initializing edge-text as well, to empty string
378 xy<double> text_pos=edgesmap[active_edge]->getArrowPos();
379 text_pos+=(xy<double>(10,10));
381 edgetextmap[active_edge]=new Gnome::Canvas::Text(displayed_graph,
382 text_pos.x, text_pos.y, "");
383 edgetextmap[active_edge]->property_fill_color().set_value(
385 edgetextmap[active_edge]->raise_to_top();
387 //updating its properties
388 mapwin.updateEdge(active_edge);
393 std::cerr << "Loop edge is not yet implemented!" << std::endl;
396 //clicked item was not a node. it could be an e.g. edge. we do not
397 //deal with it furthermore.
405 case GDK_BUTTON_RELEASE:
407 //we clear settings in two cases
408 //1: the edge is ready (target_item has valid value)
409 //2: the edge creation is cancelled with right button
410 if((target_item)||(e->button.button==3))
414 *active_item << Gnome::Canvas::Properties::fill_color("blue");
419 *target_item << Gnome::Canvas::Properties::fill_color("blue");
432 bool GraphDisplayerCanvas::eraserEventHandler(GdkEvent* e)
436 case GDK_BUTTON_PRESS:
437 //finding the clicked items
438 window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
439 active_item=(get_item_at(clicked_x, clicked_y));
443 for (NodeIt i(mapstorage.graph); i!=INVALID; ++i)
445 if(nodesmap[i]==active_item)
451 if(active_node==INVALID)
453 for (EdgeIt i(mapstorage.graph); i!=INVALID; ++i)
455 if(edgesmap[i]==active_item)
462 //recolor activated item
465 *active_item << Gnome::Canvas::Properties::fill_color("red");
469 case GDK_BUTTON_RELEASE:
470 window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
473 //the cursor was not moved since pressing it
474 if( active_item == ( get_item_at (clicked_x, clicked_y) ) )
477 if(active_node!=INVALID)
479 mapstorage.modified = true;
481 std::set<Graph::Edge> edges_to_delete;
483 for(OutEdgeIt e(mapstorage.graph,active_node);e!=INVALID;++e)
485 edges_to_delete.insert(e);
488 for(InEdgeIt e(mapstorage.graph,active_node);e!=INVALID;++e)
490 edges_to_delete.insert(e);
493 //deleting collected edges
494 for(std::set<Graph::Edge>::iterator
495 edge_set_it=edges_to_delete.begin();
496 edge_set_it!=edges_to_delete.end();
499 deleteItem(*edge_set_it);
501 deleteItem(active_node);
503 //a simple edge was chosen
506 deleteItem(active_edge);
509 //pointer was moved, deletion is cancelled
512 if(active_node!=INVALID)
514 *active_item << Gnome::Canvas::Properties::fill_color("blue");
518 *active_item << Gnome::Canvas::Properties::fill_color("green");
528 case GDK_MOTION_NOTIFY:
537 bool GraphDisplayerCanvas::edgeMapEditEventHandler(GdkEvent* e)
539 if(actual_tool==EDGE_MAP_EDIT)
543 case GDK_BUTTON_PRESS:
545 //for determine, whether it was an edge
546 Edge clicked_edge=INVALID;
548 window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
549 active_item=(get_item_at(clicked_x, clicked_y));
551 //find the activated item between texts
552 for (EdgeIt i(mapstorage.graph); i!=INVALID; ++i)
554 //at the same time only one can be active
555 if(edgetextmap[i]==active_item)
561 //if it was not between texts, search for it between edges
562 if(clicked_edge==INVALID)
564 for (EdgeIt i(mapstorage.graph); i!=INVALID; ++i)
566 //at the same time only one can be active
567 if((edgesmap[i]==active_item)||(edgetextmap[i]==active_item))
574 //if it was really an edge...
575 if(clicked_edge!=INVALID)
577 // the id map is not editable
578 if (edgemap_to_edit == "id") return 0;
580 //and there is activated map
581 if(edgetextmap[clicked_edge]->property_text().get_value()!="")
583 //activate the general variable for it
584 active_edge=clicked_edge;
587 Gtk::Dialog dialog("Edit value", *parentwin, true);
588 dialog.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
589 dialog.add_button(Gtk::Stock::OK, Gtk::RESPONSE_ACCEPT);
590 Gtk::VBox* vbox = dialog.get_vbox();
592 (*mapstorage.edgemap_storage[edgemap_to_edit])[active_edge],
596 //TODO: find out why doesn't it work with
597 //numeric_limits<double>::min/max
598 Gtk::SpinButton spin(adj);
599 spin.set_numeric(true);
603 switch (dialog.run())
605 case Gtk::RESPONSE_NONE:
606 case Gtk::RESPONSE_CANCEL:
608 case Gtk::RESPONSE_ACCEPT:
609 double new_value = spin.get_value();
610 (*mapstorage.edgemap_storage[edgemap_to_edit])[active_edge] =
612 std::ostringstream ostr;
614 edgetextmap[active_edge]->property_text().set_value(
616 //mapwin.updateEdge(active_edge);
617 mapwin.updateEdge(Edge(INVALID));
630 bool GraphDisplayerCanvas::nodeMapEditEventHandler(GdkEvent* e)
632 if(actual_tool==NODE_MAP_EDIT)
636 case GDK_BUTTON_PRESS:
638 //for determine, whether it was a node
639 Node clicked_node=INVALID;
641 window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
642 active_item=(get_item_at(clicked_x, clicked_y));
644 //find the activated item between texts
645 for (NodeIt i(mapstorage.graph); i!=INVALID; ++i)
647 //at the same time only one can be active
648 if(nodetextmap[i]==active_item)
654 //if there was not, search for it between nodes
655 if(clicked_node==INVALID)
657 for (NodeIt i(mapstorage.graph); i!=INVALID; ++i)
659 //at the same time only one can be active
660 if(nodesmap[i]==active_item)
667 //if it was really a node...
668 if(clicked_node!=INVALID)
670 // the id map is not editable
671 if (nodemap_to_edit == "id") return 0;
673 //and there is activated map
674 if(nodetextmap[clicked_node]->property_text().get_value()!="")
676 //activate the general variable for it
677 active_node=clicked_node;
680 Gtk::Dialog dialog("Edit value", *parentwin, true);
681 dialog.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
682 dialog.add_button(Gtk::Stock::OK, Gtk::RESPONSE_ACCEPT);
683 Gtk::VBox* vbox = dialog.get_vbox();
685 (*mapstorage.nodemap_storage[nodemap_to_edit])[active_node],
689 //TODO: find out why doesn't it work with
690 //numeric_limits<double>::min/max
691 Gtk::SpinButton spin(adj);
692 spin.set_numeric(true);
696 switch (dialog.run())
698 case Gtk::RESPONSE_NONE:
699 case Gtk::RESPONSE_CANCEL:
701 case Gtk::RESPONSE_ACCEPT:
702 double new_value = spin.get_value();
703 (*mapstorage.nodemap_storage[nodemap_to_edit])[active_node] =
705 std::ostringstream ostr;
707 nodetextmap[active_node]->property_text().set_value(
709 //mapwin.updateNode(active_node);
710 mapwin.updateNode(Node(INVALID));
723 void GraphDisplayerCanvas::deleteItem(Node node_to_delete)
725 delete(nodetextmap[node_to_delete]);
726 delete(nodesmap[node_to_delete]);
727 mapstorage.graph.erase(node_to_delete);
730 void GraphDisplayerCanvas::deleteItem(Edge edge_to_delete)
732 delete(edgetextmap[edge_to_delete]);
733 delete(edgesmap[edge_to_delete]);
734 mapstorage.graph.erase(edge_to_delete);
737 void GraphDisplayerCanvas::textReposition(xy<double> new_place)
739 new_place+=(xy<double>(10,10));
740 edgetextmap[forming_edge]->property_x().set_value(new_place.x);
741 edgetextmap[forming_edge]->property_y().set_value(new_place.y);
744 void GraphDisplayerCanvas::toggleEdgeActivity(BrokenEdge* active_bre, bool on)
748 if(forming_edge!=INVALID)
750 std::cerr << "ERROR!!!! Valid edge found!" << std::endl;
754 for (EdgeIt i(mapstorage.graph); i!=INVALID; ++i)
756 if(edgesmap[i]==active_bre)
765 if(forming_edge!=INVALID)
767 forming_edge=INVALID;
771 std::cerr << "ERROR!!!! Invalid edge found!" << std::endl;
777 int GraphDisplayerCanvas::addNewEdgeMap(double default_value, std::string mapname)
780 Graph::EdgeMap<double> * emptr=new Graph::EdgeMap<double> (mapstorage.graph, default_value);
782 //if addition was not successful addEdgeMap returns one.
783 //cause can be that there is already a map named like the new one
784 if(mapstorage.addEdgeMap(mapname,emptr, default_value))
790 //add it to the list of the displayable maps
791 mapwin.registerNewEdgeMap(mapname);
794 changeEdgeText(mapname);
799 int GraphDisplayerCanvas::addNewNodeMap(double default_value, std::string mapname)
802 Graph::NodeMap<double> * emptr=new Graph::NodeMap<double> (mapstorage.graph,default_value);
804 //if addition was not successful addNodeMap returns one.
805 //cause can be that there is already a map named like the new one
806 if(mapstorage.addNodeMap(mapname,emptr, default_value))
811 //add it to the list of the displayable maps
812 mapwin.registerNewNodeMap(mapname);
815 changeNodeText(mapname);