Toolbar has custom icons now. Works only when installed.
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
35 GdkEvent * generated=new GdkEvent();
36 generated->type=GDK_KEY_PRESS;
37 ((GdkEventKey*)generated)->keyval=GDK_KP_Enter;
38 entryWidgetChangeHandler(generated);
57 actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::moveEventHandler), false);
61 actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::createNodeEventHandler), false);
65 actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::createEdgeEventHandler), false);
69 actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::eraserEventHandler), false);
74 actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::edgeMapEditEventHandler), false);
78 actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::nodeMapEditEventHandler), false);
87 int GraphDisplayerCanvas::getActualTool()
92 bool GraphDisplayerCanvas::moveEventHandler(GdkEvent* e)
96 case GDK_BUTTON_PRESS:
97 //we mark the location of the event to be able to calculate parameters of dragging
98 window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
100 active_item=(get_item_at(clicked_x, clicked_y));
102 for (NodeIt i(mapstorage.graph); i!=INVALID; ++i)
104 if(nodesmap[i]==active_item)
109 switch(e->button.button)
119 case GDK_BUTTON_RELEASE:
124 case GDK_MOTION_NOTIFY:
125 //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
126 if(active_node!=INVALID)
128 mapstorage.modified = true;
129 mapstorage.coords.set(active_node, xy<double>(clicked_x, clicked_y));
130 //new coordinates will be the old values,
131 //because the item will be moved to the
132 //new coordinate therefore the new movement
133 //has to be calculated from here
137 window_to_world (e->motion.x, e->motion.y, new_x, new_y);
139 double dx=new_x-clicked_x;
140 double dy=new_y-clicked_y;
142 //repositioning node and its text
143 active_item->move(dx, dy);
144 nodetextmap[active_node]->move(dx, dy);
149 //all the edges connected to the moved point has to be redrawn
152 mapstorage.graph.firstOut(ei,active_node);
154 for(;ei!=INVALID;mapstorage.graph.nextOut(ei))
156 Gnome::Canvas::Points coos;
157 double x1, x2, y1, y2;
159 nodesmap[mapstorage.graph.source(ei)]->get_bounds(x1, y1, x2, y2);
160 coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
162 nodesmap[mapstorage.graph.target(ei)]->get_bounds(x1, y1, x2, y2);
163 coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
167 edgesmap[ei]->setPoints(coos);
171 edgesmap[ei]->setPoints(coos,true);
174 //reposition of edgetext
175 xy<double> text_pos=edgesmap[ei]->getArrowPos();
176 text_pos+=(xy<double>(10,10));
177 edgetextmap[ei]->property_x().set_value(text_pos.x);
178 edgetextmap[ei]->property_y().set_value(text_pos.y);
181 mapstorage.graph.firstIn(ei,active_node);
182 for(;ei!=INVALID;mapstorage.graph.nextIn(ei))
184 Gnome::Canvas::Points coos;
185 double x1, x2, y1, y2;
187 nodesmap[mapstorage.graph.source(ei)]->get_bounds(x1, y1, x2, y2);
188 coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
190 nodesmap[mapstorage.graph.target(ei)]->get_bounds(x1, y1, x2, y2);
191 coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
195 edgesmap[ei]->setPoints(coos);
199 edgesmap[ei]->setPoints(coos,true);
202 xy<double> text_pos=edgesmap[ei]->getArrowPos();
203 text_pos+=(xy<double>(10,10));
204 edgetextmap[ei]->property_x().set_value(text_pos.x);
205 edgetextmap[ei]->property_y().set_value(text_pos.y);
214 bool GraphDisplayerCanvas::createNodeEventHandler(GdkEvent* e)
219 //draw the new node in red at the clicked place
220 case GDK_2BUTTON_PRESS:
221 //std::cout << "double click" << std::endl;
223 case GDK_BUTTON_PRESS:
224 mapstorage.modified = true;
228 active_node=NodeIt(mapstorage.graph,mapstorage.graph.addNode());
230 //initiating values corresponding to new node in maps
232 window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
234 mapstorage.coords.set(active_node, xy<double>(clicked_x, clicked_y));
235 (*mapstorage.nodemap_storage["id"])[active_node] =
236 mapstorage.graph.id(active_node);
238 nodesmap[active_node]=new Gnome::Canvas::Ellipse(displayed_graph,
239 clicked_x-20, clicked_y-20, clicked_x+20, clicked_y+20);
240 active_item=(Gnome::Canvas::Item *)(nodesmap[active_node]);
241 *(nodesmap[active_node]) << Gnome::Canvas::Properties::fill_color("red");
242 *(nodesmap[active_node]) << Gnome::Canvas::Properties::outline_color("black");
243 (nodesmap[active_node])->show();
245 nodetextmap[active_node]=new Gnome::Canvas::Text(displayed_graph,
246 clicked_x+node_property_defaults[N_RADIUS]+5,
247 clicked_y+node_property_defaults[N_RADIUS]+5, "");
248 nodetextmap[active_node]->property_fill_color().set_value("darkblue");
250 mapwin.updateNode(active_node);
255 case GDK_MOTION_NOTIFY:
257 GdkEvent * generated=new GdkEvent();
258 generated->motion.x=e->motion.x;
259 generated->motion.y=e->motion.y;
260 generated->type=GDK_MOTION_NOTIFY;
261 moveEventHandler(generated);
265 //finalize the new node
266 case GDK_BUTTON_RELEASE:
267 window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
269 active_item->lower_to_bottom();
272 target_item=get_item_at(clicked_x, clicked_y);
274 active_item->raise_to_top();
277 if(target_item==active_item)
279 //Its appropriate color is given by update.
280 *active_item << Gnome::Canvas::Properties::fill_color("blue");
284 //In this case the given color has to be overwritten, because the noe covers an other item.
285 *active_item << Gnome::Canvas::Properties::fill_color("lightblue");
297 bool GraphDisplayerCanvas::createEdgeEventHandler(GdkEvent* e)
301 case GDK_BUTTON_PRESS:
302 //in edge creation right button has special meaning
303 if(e->button.button!=3)
305 //there is not yet selected node
306 if(active_node==INVALID)
308 //we mark the location of the event to be able to calculate parameters of dragging
310 window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
312 active_item=(get_item_at(clicked_x, clicked_y));
314 for (NodeIt i(mapstorage.graph); i!=INVALID; ++i)
316 if(nodesmap[i]==active_item)
321 //the clicked item is really a node
322 if(active_node!=INVALID)
324 *(nodesmap[active_node]) << Gnome::Canvas::Properties::fill_color("red");
327 //clicked item was not a node. It could be e.g. edge.
333 //we only have to do sg. if the mouse button
334 // is pressed already once AND the click was
335 // on a node that was found in the set of
336 //nodes, and now we only search for the second
340 window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
341 target_item=(get_item_at(clicked_x, clicked_y));
342 Graph::NodeIt target_node=INVALID;
343 for (NodeIt i(mapstorage.graph); i!=INVALID; ++i)
345 if(nodesmap[i]==target_item)
350 //the clicked item is a node, the edge can be drawn
351 if(target_node!=INVALID)
353 if(target_node!=active_node)
355 mapstorage.modified = true;
357 *(nodesmap[target_node]) << Gnome::Canvas::Properties::fill_color("red");
360 active_edge=EdgeIt(mapstorage.graph,mapstorage.graph.addEdge(active_node, target_node));
362 //initiating values corresponding to new edge in maps
363 mapstorage.initMapsForEdge(active_edge);
364 (*mapstorage.edgemap_storage["id"])[active_edge] = mapstorage.graph.id(active_edge);
366 //calculating coordinates of new edge
367 Gnome::Canvas::Points coos;
368 double x1, x2, y1, y2;
370 active_item->get_bounds(x1, y1, x2, y2);
371 coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
373 target_item->get_bounds(x1, y1, x2, y2);
374 coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
377 edgesmap[active_edge]=new BrokenEdge(displayed_graph, coos, *this);
378 *(edgesmap[active_edge]) << Gnome::Canvas::Properties::fill_color("green");
379 edgesmap[active_edge]->property_width_pixels().set_value(10);
381 //redraw nodes to blank terminations of the new edge
382 target_item->raise_to_top();
383 active_item->raise_to_top();
385 //initializing edge-text as well, to empty string
386 xy<double> text_pos=edgesmap[active_edge]->getArrowPos();
387 text_pos+=(xy<double>(10,10));
389 edgetextmap[active_edge]=new Gnome::Canvas::Text(displayed_graph, text_pos.x, text_pos.y, "");
390 edgetextmap[active_edge]->property_fill_color().set_value("darkgreen");
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 deal with it furthermore.
409 case GDK_BUTTON_RELEASE:
411 //we clear settings in two cases
412 //1: the edge is ready (target_item has valid value)
413 //2: the edge creation is cancelled with right button
414 if((target_item)||(e->button.button==3))
418 *active_item << Gnome::Canvas::Properties::fill_color("blue");
423 *target_item << Gnome::Canvas::Properties::fill_color("blue");
436 bool GraphDisplayerCanvas::eraserEventHandler(GdkEvent* e)
440 case GDK_BUTTON_PRESS:
441 //finding the clicked items
442 window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
443 active_item=(get_item_at(clicked_x, clicked_y));
447 for (NodeIt i(mapstorage.graph); i!=INVALID; ++i)
449 if(nodesmap[i]==active_item)
455 if(active_node==INVALID)
457 for (EdgeIt i(mapstorage.graph); i!=INVALID; ++i)
459 if(edgesmap[i]==active_item)
466 //recolor activated item
469 *active_item << Gnome::Canvas::Properties::fill_color("red");
473 case GDK_BUTTON_RELEASE:
474 window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
477 //the cursor was not moved since pressing it
478 if( active_item == ( get_item_at (clicked_x, clicked_y) ) )
481 if(active_node!=INVALID)
483 mapstorage.modified = true;
485 //collecting edges to delete
487 std::set<Graph::Edge> edges_to_delete;
489 mapstorage.graph.firstOut(e,active_node);
490 for(;e!=INVALID;mapstorage.graph.nextOut(e))
492 edges_to_delete.insert(e);
495 mapstorage.graph.firstIn(e,active_node);
496 for(;e!=INVALID;mapstorage.graph.nextIn(e))
498 edges_to_delete.insert(e);
501 //deleting collected edges
502 for(std::set<Graph::Edge>::iterator edge_set_it=edges_to_delete.begin();edge_set_it!=edges_to_delete.end();edge_set_it++)
504 deleteItem(*edge_set_it);
506 deleteItem(active_node);
508 //a simple edge was chosen
511 deleteItem(active_edge);
514 //pointer was moved, deletion is cancelled
517 if(active_node!=INVALID)
519 *active_item << Gnome::Canvas::Properties::fill_color("blue");
523 *active_item << Gnome::Canvas::Properties::fill_color("green");
533 case GDK_MOTION_NOTIFY:
542 bool GraphDisplayerCanvas::edgeMapEditEventHandler(GdkEvent* e)
544 if(actual_tool==EDGE_MAP_EDIT)
549 //for Escape or Enter hide the displayed widget
551 nodeMapEditEventHandler(e);
554 case GDK_BUTTON_PRESS:
555 //If the click happened on an edge we place the entrywidget there and fill in the value of the activated map at that edge.
557 //for determine, whether it was an edge
558 Graph::EdgeIt clicked_edge=INVALID;
560 //find the activated item between texts
561 active_item=(get_item_at(e->button.x, e->button.y));
562 for (EdgeIt i(mapstorage.graph); i!=INVALID; ++i)
564 if(edgetextmap[i]==active_item)
570 //if it was not between texts, search for it between edges
571 if(clicked_edge==INVALID)
573 window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
574 active_item=(get_item_at(clicked_x, clicked_y));
576 for (EdgeIt i(mapstorage.graph); i!=INVALID; ++i)
578 //at the same time only one can be active
579 if((edgesmap[i]==active_item)||(edgetextmap[i]==active_item))
585 //if it was really an edge...
586 if(clicked_edge!=INVALID)
588 //If there is already edited edge, it has to be saved first
589 if(entrywidget.is_visible())
591 GdkEvent * generated=new GdkEvent();
592 generated->type=GDK_KEY_PRESS;
593 ((GdkEventKey*)generated)->keyval=GDK_KP_Enter;
594 entryWidgetChangeHandler(generated);
596 //If the previous value could be saved, we can go further, otherwise not
597 if(!entrywidget.is_visible())
599 //and there is activated map
600 if(edgetextmap[clicked_edge]->property_text().get_value()!="")
602 //activate the general variable for it
603 active_edge=clicked_edge;
604 //delete visible widget if there is
605 if(canvasentrywidget)
607 delete(canvasentrywidget);
610 //initialize the entry
613 //fill in the correct value
614 entrywidget.set_text(edgetextmap[active_edge]->property_text().get_value());
616 //replace and resize the entry to the activated edge and put it in a Canvas::Widget to be able to display it on gdc
617 xy<double> entry_coos;
618 entry_coos.x=(edgetextmap[active_edge])->property_x().get_value();
619 entry_coos.x-=edgetextmap[active_edge]->property_text_width().get_value()/2;
620 entry_coos.y=(edgetextmap[active_edge])->property_y().get_value();
621 entry_coos.y-=edgetextmap[active_edge]->property_text_height().get_value()*1.5/2;
622 canvasentrywidget=new Gnome::Canvas::Widget(displayed_graph, entry_coos.x, entry_coos.y, entrywidget);
623 canvasentrywidget->property_width().set_value(edgetextmap[active_edge]->property_text_width().get_value()*4);
624 canvasentrywidget->property_height().set_value(edgetextmap[active_edge]->property_text_height().get_value()*1.5);
626 //setting the focus to newly created widget
627 parentwin->set_focus(entrywidget);
628 parentwin->activate_focus();
632 //if it was not an edge...
635 //In this case the click did not happen on an edge
636 //if there is visible entry we save the value in it
637 //we pretend like an Enter was presse din the Entry widget
638 GdkEvent * generated=new GdkEvent();
639 generated->type=GDK_KEY_PRESS;
640 ((GdkEventKey*)generated)->keyval=GDK_KP_Enter;
641 entryWidgetChangeHandler(generated);
652 bool GraphDisplayerCanvas::nodeMapEditEventHandler(GdkEvent* e)
654 if(actual_tool==NODE_MAP_EDIT)
659 //for Escape or Enter hide the displayed widget
661 switch(((GdkEventKey*)e)->keyval)
676 case GDK_BUTTON_PRESS:
677 //If the click happened on an edge we place the entrywidget there and fill in the value of the activated map at that edge.
679 //for determine, whether it was a node
680 Graph::NodeIt clicked_node=INVALID;
682 //find the activated item between texts
683 active_item=(get_item_at(e->button.x, e->button.y));
684 for (NodeIt i(mapstorage.graph); i!=INVALID; ++i)
686 //at the same time only one can be active
687 if(nodetextmap[i]==active_item)
693 //if there was not, search for it between nodes
694 if(clicked_node==INVALID)
696 window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
697 active_item=(get_item_at(clicked_x, clicked_y));
699 for (NodeIt i(mapstorage.graph); i!=INVALID; ++i)
701 //at the same time only one can be active
702 if(nodesmap[i]==active_item)
708 //if it was really an edge...
709 if(clicked_node!=INVALID)
711 //If there is already edited edge, it has to be saved first
712 if(entrywidget.is_visible())
714 GdkEvent * generated=new GdkEvent();
715 generated->type=GDK_KEY_PRESS;
716 ((GdkEventKey*)generated)->keyval=GDK_KP_Enter;
717 entryWidgetChangeHandler(generated);
719 //If the previous value could be saved, we can go further, otherwise not
720 if(!entrywidget.is_visible())
722 //and there is activated map
723 if(nodetextmap[clicked_node]->property_text().get_value()!="")
725 //activate the general variable for it
726 active_node=clicked_node;
727 //delete visible widget if there is
728 if(canvasentrywidget)
730 delete(canvasentrywidget);
733 //initialize the entry
736 //fill in the correct value
737 entrywidget.set_text(nodetextmap[active_node]->property_text().get_value());
739 //replace and resize the entry to the activated node and put it in a Canvas::Widget to be able to display it on gdc
740 xy<double> entry_coos;
741 entry_coos.x=(nodetextmap[active_node])->property_x().get_value();
742 entry_coos.x-=nodetextmap[active_node]->property_text_width().get_value()/2;
743 entry_coos.y=(nodetextmap[active_node])->property_y().get_value();
744 entry_coos.y-=nodetextmap[active_node]->property_text_height().get_value()*1.5/2;
745 canvasentrywidget=new Gnome::Canvas::Widget(displayed_graph, entry_coos.x, entry_coos.y, entrywidget);
746 canvasentrywidget->property_width().set_value(nodetextmap[active_node]->property_text_width().get_value()*4);
747 canvasentrywidget->property_height().set_value(nodetextmap[active_node]->property_text_height().get_value()*1.5);
751 //if it was not an edge...
754 //In this case the click did not happen on an edge
755 //if there is visible entry we save the value in it
756 //we pretend like an Enter was presse din the Entry widget
757 GdkEvent * generated=new GdkEvent();
758 generated->type=GDK_KEY_PRESS;
759 ((GdkEventKey*)generated)->keyval=GDK_KP_Enter;
760 entryWidgetChangeHandler(generated);
771 bool GraphDisplayerCanvas::entryWidgetChangeHandler(GdkEvent* e)
773 if(entrywidget.is_visible())
775 if(e->type==GDK_KEY_PRESS)
777 switch(((GdkEventKey*)e)->keyval)
785 //these variables check whether the text in the entry is valid
786 bool valid_double=true;
789 //getting the value from the entry and converting it to double
790 Glib::ustring mapvalue_str = entrywidget.get_text();
792 char * mapvalue_ch=new char [mapvalue_str.length()];
793 for(int i=0;i<(int)(mapvalue_str.length());i++)
795 if(((mapvalue_str[i]<'0')||(mapvalue_str[i]>'9'))&&(mapvalue_str[i]!='.'))
801 if(mapvalue_str[i]=='.')
806 mapvalue_ch[i]=mapvalue_str[i];
809 //if the text in the entry was correct
810 if((point_num<=1)&&(valid_double))
812 double mapvalue_d=atof(mapvalue_ch);
814 //reconvert the double to string for the correct format
815 std::ostringstream ostr;
818 //save the value to the correct place
822 edgetextmap[active_edge]->property_text().set_value(ostr.str());
823 (*(mapstorage.edgemap_storage)[edgemap_to_edit])[active_edge]=mapvalue_d;
824 mapwin.updateEdge(active_edge);
827 nodetextmap[active_node]->property_text().set_value(ostr.str());
828 (*(mapstorage.nodemap_storage)[nodemap_to_edit])[active_node]=mapvalue_d;
829 mapwin.updateNode(active_node);
836 //the text in the entry was not correct for a double
839 std::cerr << "ERROR: only handling of double values is implemented yet!" << std::endl;
852 void GraphDisplayerCanvas::deleteItem(NodeIt node_to_delete)
854 delete(nodetextmap[node_to_delete]);
855 delete(nodesmap[node_to_delete]);
856 mapstorage.graph.erase(node_to_delete);
859 void GraphDisplayerCanvas::deleteItem(EdgeIt edge_to_delete)
861 delete(edgetextmap[edge_to_delete]);
862 delete(edgesmap[edge_to_delete]);
863 mapstorage.graph.erase(edge_to_delete);
866 void GraphDisplayerCanvas::deleteItem(Graph::Edge edge_to_delete)
868 delete(edgetextmap[edge_to_delete]);
869 delete(edgesmap[edge_to_delete]);
870 mapstorage.graph.erase(edge_to_delete);
873 void GraphDisplayerCanvas::textReposition(xy<double> new_place)
875 new_place+=(xy<double>(10,10));
876 edgetextmap[forming_edge]->property_x().set_value(new_place.x);
877 edgetextmap[forming_edge]->property_y().set_value(new_place.y);
880 void GraphDisplayerCanvas::toggleEdgeActivity(BrokenEdge* active_bre, bool on)
884 if(forming_edge!=INVALID)
886 std::cerr << "ERROR!!!! Valid edge found!" << std::endl;
890 for (EdgeIt i(mapstorage.graph); i!=INVALID; ++i)
892 if(edgesmap[i]==active_bre)
901 if(forming_edge!=INVALID)
903 forming_edge=INVALID;
907 std::cerr << "ERROR!!!! Invalid edge found!" << std::endl;
913 int GraphDisplayerCanvas::addNewEdgeMap(double default_value, std::string mapname)
916 Graph::EdgeMap<double> * emptr=new Graph::EdgeMap<double> (mapstorage.graph, default_value);
918 //if addition was not successful addEdgeMap returns one.
919 //cause can be that there is already a map named like the new one
920 if(mapstorage.addEdgeMap(mapname,emptr))
926 //add it to the list of the displayable maps
927 mapwin.registerNewEdgeMap(mapname);
930 changeEdgeText(mapname);
935 int GraphDisplayerCanvas::addNewNodeMap(double default_value, std::string mapname)
938 Graph::NodeMap<double> * emptr=new Graph::NodeMap<double> (mapstorage.graph,default_value);
940 //if addition was not successful addNodeMap returns one.
941 //cause can be that there is already a map named like the new one
942 if(mapstorage.addNodeMap(mapname,emptr))
947 //add it to the list of the displayable maps
948 mapwin.registerNewNodeMap(mapname);
951 changeNodeText(mapname);