COIN-OR::LEMON - Graph Library

Context Navigation

source: glemon-0.x/graph_displayer_canvas-event.cc @ 149:930e838ad5b6

Last change on this file since 149:930e838ad5b6 was 149:930e838ad5b6, checked in by Hegyi Péter, 18 years ago
Node and edge editor button are the same furthermore.
Property exe set to ``*
File size: 23.6 KB

Line
1	#include "graph_displayer_canvas.h"
2	#include <cmath>
3
4
5	bool GraphDisplayerCanvas::on_expose_event(GdkEventExpose *event)
6	{
7	Gnome::Canvas::CanvasAA::on_expose_event(event);
8	//usleep(10000);
9	//rezoom();
10	return true;
11	}
12
13	void GraphDisplayerCanvas::changeEditorialTool(int newtool)
14	{
15	if(actual_tool!=newtool)
16	{
17
18	actual_handler.disconnect();
19
20	switch(actual_tool)
21	{
22	case CREATE_EDGE:
23	{
24	GdkEvent * generated=new GdkEvent();
25	generated->type=GDK_BUTTON_RELEASE;
26	generated->button.button=3;
27	createEdgeEventHandler(generated);
28	break;
29	}
30	case MAP_EDIT:
31	{
32	break;
33	}
34	default:
35	break;
36	}
37
38	active_item=NULL;
39	target_item=NULL;
40	active_edge=INVALID;
41	active_node=INVALID;
42
43
44	actual_tool=newtool;
45
46	switch(newtool)
47	{
48	case MOVE:
49	actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::moveEventHandler), false);
50	break;
51
52	case CREATE_NODE:
53	actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::createNodeEventHandler), false);
54	break;
55
56	case CREATE_EDGE:
57	actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::createEdgeEventHandler), false);
58	break;
59
60	case ERASER:
61	actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::eraserEventHandler), false);
62	break;
63
64	case MAP_EDIT:
65	grab_focus();
66	actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::mapEditEventHandler), false);
67	break;
68
69	default:
70	break;
71	}
72	}
73	}
74
75	int GraphDisplayerCanvas::getActualTool()
76	{
77	return actual_tool;
78	}
79
80	bool GraphDisplayerCanvas::moveEventHandler(GdkEvent* e)
81	{
82	static Gnome::Canvas::Text *coord_text = 0;
83	switch(e->type)
84	{
85	case GDK_BUTTON_PRESS:
86	//we mark the location of the event to be able to calculate parameters of dragging
87	window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
88
89	active_item=(get_item_at(clicked_x, clicked_y));
90	active_node=INVALID;
91	for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i)
92	{
93	if(nodesmap[i]==active_item)
94	{
95	active_node=i;
96	}
97	}
98	isbutton=e->button.button;
99	break;
100	case GDK_BUTTON_RELEASE:
101	if (coord_text)
102	{
103	delete coord_text;
104	coord_text = 0;
105	}
106	isbutton=0;
107	active_item=NULL;
108	active_node=INVALID;
109	break;
110	case GDK_MOTION_NOTIFY:
111	//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
112	if(active_node!=INVALID)
113	{
114	(mytab.mapstorage).modified = true;
115
116	//new coordinates will be the old values,
117	//because the item will be moved to the
118	//new coordinate therefore the new movement
119	//has to be calculated from here
120
121	double new_x, new_y;
122
123	window_to_world (e->motion.x, e->motion.y, new_x, new_y);
124
125	double dx=new_x-clicked_x;
126	double dy=new_y-clicked_y;
127
128	//repositioning node and its text
129	active_item->move(dx, dy);
130	nodetextmap[active_node]->move(dx, dy);
131
132	// the new coordinates of the centre of the node
133	double coord_x = new_x - (clicked_x - (mytab.mapstorage).coords[active_node].x);
134	double coord_y = new_y - (clicked_y - (mytab.mapstorage).coords[active_node].y);
135
136	// write back the new coordinates to the coords map
137	(mytab.mapstorage).coords.set(active_node, xy<double>(coord_x, coord_y));
138
139	clicked_x=new_x;
140	clicked_y=new_y;
141
142	// reposition the coordinates text
143	std::ostringstream ostr;
144	ostr << "(" <<
145	(mytab.mapstorage).coords[active_node].x << ", " <<
146	(mytab.mapstorage).coords[active_node].y << ")";
147	double radius =
148	(nodesmap[active_node]->property_x2().get_value() -
149	nodesmap[active_node]->property_x1().get_value()) / 2.0;
150	if (coord_text)
151	{
152	coord_text->property_text().set_value(ostr.str());
153	coord_text->property_x().set_value((mytab.mapstorage).coords[active_node].x +
154	radius);
155	coord_text->property_y().set_value((mytab.mapstorage).coords[active_node].y -
156	radius);
157	}
158	else
159	{
160	coord_text = new Gnome::Canvas::Text(
161	displayed_graph,
162	(mytab.mapstorage).coords[active_node].x + radius,
163	(mytab.mapstorage).coords[active_node].y - radius,
164	ostr.str());
165	coord_text->property_fill_color().set_value("black");
166	coord_text->property_anchor().set_value(Gtk::ANCHOR_SOUTH_WEST);
167	}
168
169	//all the edges connected to the moved point has to be redrawn
170	for(OutEdgeIt ei((mytab.mapstorage).graph,active_node);ei!=INVALID;++ei)
171	{
172	XY moved_node_1(coord_x - dx, coord_y - dy);
173	XY moved_node_2(coord_x, coord_y);
174	Node target = mytab.mapstorage.graph.target(ei);
175	XY fix_node(mytab.mapstorage.coords[target].x,
176	mytab.mapstorage.coords[target].y);
177	XY old_arrow_pos(mytab.mapstorage.arrow_pos[ei]);
178
179	XY arrow_pos;
180	arrow_pos = calcArrowPos(moved_node_1, moved_node_2, fix_node, old_arrow_pos, isbutton);
181
182	mytab.mapstorage.arrow_pos.set(ei, arrow_pos);
183	edgesmap[ei]->draw();
184
185	//reposition of edgetext
186	XY text_pos=mytab.mapstorage.arrow_pos[ei];
187	text_pos+=(XY(10,10));
188	edgetextmap[ei]->property_x().set_value(text_pos.x);
189	edgetextmap[ei]->property_y().set_value(text_pos.y);
190	}
191
192	for(InEdgeIt ei((mytab.mapstorage).graph,active_node);ei!=INVALID;++ei)
193	{
194	XY moved_node_1(coord_x - dx, coord_y - dy);
195	XY moved_node_2(coord_x, coord_y);
196	Node source = mytab.mapstorage.graph.source(ei);
197	XY fix_node(mytab.mapstorage.coords[source].x,
198	mytab.mapstorage.coords[source].y);
199	XY old_arrow_pos(mytab.mapstorage.arrow_pos[ei]);
200
201	XY arrow_pos;
202	arrow_pos = calcArrowPos(moved_node_1, moved_node_2, fix_node, old_arrow_pos, isbutton);
203
204	mytab.mapstorage.arrow_pos.set(ei, arrow_pos);
205	edgesmap[ei]->draw();
206
207	//reposition of edgetext
208	XY text_pos=mytab.mapstorage.arrow_pos[ei];
209	text_pos+=(XY(10,10));
210	edgetextmap[ei]->property_x().set_value(text_pos.x);
211	edgetextmap[ei]->property_y().set_value(text_pos.y);
212	}
213	}
214	default: break;
215	}
216
217	return false;
218	}
219
220	XY GraphDisplayerCanvas::calcArrowPos(XY moved_node_1, XY moved_node_2, XY fix_node, XY old_arrow_pos, int move_code)
221	{
222	switch(move_code)
223	{
224	case 1:
225	return XY((moved_node_2.x + fix_node.x) / 2.0, (moved_node_2.y + fix_node.y) / 2.0);
226	break;
227	case 2:
228	return old_arrow_pos;
229	break;
230	case 3:
231	{
232	//////////////////////////////////////////////////////////////////////////////////////////////////////
233	/////////// keeps shape-with scalar multiplication - version 2.
234	//////////////////////////////////////////////////////////////////////////////////////////////////////
235
236	//old vector from one to the other node - a
237	xy<double> a_v(moved_node_1.x-fix_node.x,moved_node_1.y-fix_node.y);
238	//new vector from one to the other node - b
239	xy<double> b_v(moved_node_2.x-fix_node.x,moved_node_2.y-fix_node.y);
240
241	double absa=sqrt(a_v.normSquare());
242	double absb=sqrt(b_v.normSquare());
243
244	if ((absa == 0.0) \|\| (absb == 0.0))
245	{
246	return old_arrow_pos;
247	}
248	else
249	{
250	//old vector from one node to the breakpoint - c
251	xy<double> c_v(old_arrow_pos.x-fix_node.x,old_arrow_pos.y-fix_node.y);
252
253	//unit vector with the same direction to a_v
254	xy<double> a_v_u(a_v.x/absa,a_v.y/absa);
255
256	//normal vector of unit vector with the same direction to a_v
257	xy<double> a_v_u_n(((-1)*a_v_u.y),a_v_u.x);
258
259	//unit vector with the same direction to b_v
260	xy<double> b_v_u(b_v.x/absb,b_v.y/absb);
261
262	//normal vector of unit vector with the same direction to b_v
263	xy<double> b_v_u_n(((-1)*b_v_u.y),b_v_u.x);
264
265	//vector c in a_v_u and a_v_u_n co-ordinate system
266	xy<double> c_a(c_va_v_u,c_va_v_u_n);
267
268	//new vector from one node to the breakpoint - d - we have to calculate this one
269	xy<double> d_v=absb/absa(c_a.xb_v_u+c_a.y*b_v_u_n);
270
271	return XY(d_v.x+fix_node.x,d_v.y+fix_node.y);
272	}
273	break;
274	}
275	default:
276	break;
277	}
278	}
279
280
281	bool GraphDisplayerCanvas::createNodeEventHandler(GdkEvent* e)
282	{
283	switch(e->type)
284	{
285	//move the new node
286	case GDK_MOTION_NOTIFY:
287	{
288	GdkEvent * generated=new GdkEvent();
289	generated->motion.x=e->motion.x;
290	generated->motion.y=e->motion.y;
291	generated->type=GDK_MOTION_NOTIFY;
292	moveEventHandler(generated);
293	break;
294	}
295
296	case GDK_BUTTON_RELEASE:
297	(mytab.mapstorage).modified = true;
298
299	isbutton=1;
300
301	active_node=(mytab.mapstorage).graph.addNode();
302
303	//initiating values corresponding to new node in maps
304
305	window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
306
307	// update coordinates
308	(mytab.mapstorage).coords.set(active_node, xy<double>(clicked_x, clicked_y));
309
310	// update all other maps
311	for (std::map<std::string, Graph::NodeMap<double>*>::const_iterator it =
312	(mytab.mapstorage).nodemap_storage.begin(); it !=
313	(mytab.mapstorage).nodemap_storage.end(); ++it)
314	{
315	if ((it->first != "coordinates_x") &&
316	(it->first != "coordinates_y"))
317	{
318	(*(it->second))[active_node] =
319	(mytab.mapstorage).nodemap_default[it->first];
320	}
321	}
322	// increment the id map's default value
323	(mytab.mapstorage).nodemap_default["label"] += 1.0;
324
325	nodesmap[active_node]=new Gnome::Canvas::Ellipse(displayed_graph,
326	clicked_x-20, clicked_y-20, clicked_x+20, clicked_y+20);
327	active_item=(Gnome::Canvas::Item *)(nodesmap[active_node]);
328	*(nodesmap[active_node]) <<
329	Gnome::Canvas::Properties::fill_color("blue");
330	*(nodesmap[active_node]) <<
331	Gnome::Canvas::Properties::outline_color("black");
332	active_item->raise_to_top();
333
334	(nodesmap[active_node])->show();
335
336	nodetextmap[active_node]=new Gnome::Canvas::Text(displayed_graph,
337	clicked_x+node_property_defaults[N_RADIUS]+5,
338	clicked_y+node_property_defaults[N_RADIUS]+5, "");
339	nodetextmap[active_node]->property_fill_color().set_value("darkblue");
340	nodetextmap[active_node]->raise_to_top();
341
342	// mapwin.updateNode(active_node);
343	propertyUpdate(active_node);
344
345	isbutton=0;
346	target_item=NULL;
347	active_item=NULL;
348	active_node=INVALID;
349	break;
350	default:
351	break;
352	}
353	return false;
354	}
355
356	bool GraphDisplayerCanvas::createEdgeEventHandler(GdkEvent* e)
357	{
358	switch(e->type)
359	{
360	case GDK_BUTTON_PRESS:
361	//in edge creation right button has special meaning
362	if(e->button.button!=3)
363	{
364	//there is not yet selected node
365	if(active_node==INVALID)
366	{
367	//we mark the location of the event to be able to calculate parameters of dragging
368
369	window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
370
371	active_item=(get_item_at(clicked_x, clicked_y));
372	active_node=INVALID;
373	for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i)
374	{
375	if(nodesmap[i]==active_item)
376	{
377	active_node=i;
378	}
379	}
380	//the clicked item is really a node
381	if(active_node!=INVALID)
382	{
383	*(nodesmap[active_node]) << Gnome::Canvas::Properties::fill_color("red");
384	isbutton=1;
385	}
386	//clicked item was not a node. It could be e.g. edge.
387	else
388	{
389	active_item=NULL;
390	}
391	}
392	//we only have to do sg. if the mouse button
393	// is pressed already once AND the click was
394	// on a node that was found in the set of
395	//nodes, and now we only search for the second
396	//node
397	else
398	{
399	window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
400	target_item=(get_item_at(clicked_x, clicked_y));
401	Node target_node=INVALID;
402	for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i)
403	{
404	if(nodesmap[i]==target_item)
405	{
406	target_node=i;
407	}
408	}
409	//the clicked item is a node, the edge can be drawn
410	if(target_node!=INVALID)
411	{
412	if(target_node!=active_node)
413	{
414	(mytab.mapstorage).modified = true;
415
416	*(nodesmap[target_node]) <<
417	Gnome::Canvas::Properties::fill_color("red");
418
419	//creating new edge
420	active_edge=(mytab.mapstorage).graph.addEdge(active_node,
421	target_node);
422
423	// update maps
424	for (std::map<std::string,
425	Graph::EdgeMap<double>*>::const_iterator it =
426	(mytab.mapstorage).edgemap_storage.begin(); it !=
427	(mytab.mapstorage).edgemap_storage.end(); ++it)
428	{
429	(*(it->second))[active_edge] =
430	(mytab.mapstorage).edgemap_default[it->first];
431	}
432	// increment the id map's default value
433	(mytab.mapstorage).edgemap_default["label"] += 1.0;
434
435	//calculating coordinates of new edge
436	Gnome::Canvas::Points coos;
437	double x1, x2, y1, y2;
438
439	active_item->get_bounds(x1, y1, x2, y2);
440	coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
441
442	target_item->get_bounds(x1, y1, x2, y2);
443	coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
444
445	// set the coordinates of the arrow on the new edge
446	MapStorage& ms = mytab.mapstorage;
447	ms.arrow_pos.set(active_edge,
448	(ms.coords[ms.graph.source(active_edge)] +
449	ms.coords[ms.graph.target(active_edge)])/ 2.0);
450
451	//drawing new edge
452	edgesmap[active_edge]=new BrokenEdge(displayed_graph, active_edge,
453	*this);
454
455	//initializing edge-text as well, to empty string
456	XY text_pos=mytab.mapstorage.arrow_pos[active_edge];
457	text_pos+=(XY(10,10));
458
459	edgetextmap[active_edge]=new Gnome::Canvas::Text(displayed_graph,
460	text_pos.x, text_pos.y, "");
461	edgetextmap[active_edge]->property_fill_color().set_value(
462	"darkgreen");
463	edgetextmap[active_edge]->raise_to_top();
464
465	//updating its properties
466	// mapwin.updateEdge(active_edge);
467	propertyUpdate(active_edge);
468	}
469	else
470	{
471	target_node=INVALID;
472	std::cerr << "Loop edge is not yet implemented!" << std::endl;
473	}
474	}
475	//clicked item was not a node. it could be an e.g. edge. we do not
476	//deal with it furthermore.
477	else
478	{
479	target_item=NULL;
480	}
481	}
482	}
483	break;
484	case GDK_BUTTON_RELEASE:
485	isbutton=0;
486	//we clear settings in two cases
487	//1: the edge is ready (target_item has valid value)
488	//2: the edge creation is cancelled with right button
489	if((target_item)\|\|(e->button.button==3))
490	{
491	if(active_item)
492	{
493	*active_item << Gnome::Canvas::Properties::fill_color("blue");
494	active_item=NULL;
495	}
496	if(target_item)
497	{
498	*target_item << Gnome::Canvas::Properties::fill_color("blue");
499	target_item=NULL;
500	}
501	active_node=INVALID;
502	active_edge=INVALID;
503	}
504	break;
505	default:
506	break;
507	}
508	return false;
509	}
510
511	bool GraphDisplayerCanvas::eraserEventHandler(GdkEvent* e)
512	{
513	switch(e->type)
514	{
515	case GDK_BUTTON_PRESS:
516	//finding the clicked items
517	window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
518	active_item=(get_item_at(clicked_x, clicked_y));
519	active_node=INVALID;
520	active_edge=INVALID;
521	//was it a node?
522	for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i)
523	{
524	if(nodesmap[i]==active_item)
525	{
526	active_node=i;
527	}
528	}
529	//or was it an edge?
530	if(active_node==INVALID)
531	{
532	for (EdgeIt i((mytab.mapstorage).graph); i!=INVALID; ++i)
533	{
534	if(edgesmap[i]==active_item)
535	{
536	active_edge=i;
537	}
538	}
539	}
540
541	// return if the clicked object is neither an edge nor a node
542	if (active_edge == INVALID) return false;
543
544	//recolor activated item
545	if(active_item)
546	{
547	*active_item << Gnome::Canvas::Properties::fill_color("red");
548	}
549	break;
550
551	case GDK_BUTTON_RELEASE:
552	window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
553	if(active_item)
554	{
555	//the cursor was not moved since pressing it
556	if( active_item == ( get_item_at (clicked_x, clicked_y) ) )
557	{
558	//a node was found
559	if(active_node!=INVALID)
560	{
561	(mytab.mapstorage).modified = true;
562
563	std::set<Graph::Edge> edges_to_delete;
564
565	for(OutEdgeIt e((mytab.mapstorage).graph,active_node);e!=INVALID;++e)
566	{
567	edges_to_delete.insert(e);
568	}
569
570	for(InEdgeIt e((mytab.mapstorage).graph,active_node);e!=INVALID;++e)
571	{
572	edges_to_delete.insert(e);
573	}
574
575	//deleting collected edges
576	for(std::set<Graph::Edge>::iterator
577	edge_set_it=edges_to_delete.begin();
578	edge_set_it!=edges_to_delete.end();
579	++edge_set_it)
580	{
581	deleteItem(*edge_set_it);
582	}
583	deleteItem(active_node);
584	}
585	//a simple edge was chosen
586	else if (active_edge != INVALID)
587	{
588	deleteItem(active_edge);
589	}
590	}
591	//pointer was moved, deletion is cancelled
592	else
593	{
594	if(active_node!=INVALID)
595	{
596	*active_item << Gnome::Canvas::Properties::fill_color("blue");
597	}
598	else if (active_edge != INVALID)
599	{
600	*active_item << Gnome::Canvas::Properties::fill_color("green");
601	}
602	}
603	}
604	//reseting datas
605	active_item=NULL;
606	active_edge=INVALID;
607	active_node=INVALID;
608	break;
609
610	case GDK_MOTION_NOTIFY:
611	break;
612
613	default:
614	break;
615	}
616	return false;
617	}
618
619	bool GraphDisplayerCanvas::mapEditEventHandler(GdkEvent* e)
620	{
621	if(actual_tool==MAP_EDIT)
622	{
623	switch(e->type)
624	{
625	case GDK_BUTTON_PRESS:
626	{
627	//for determine, whether it was an edge
628	Edge clicked_edge=INVALID;
629	//for determine, whether it was a node
630	Node clicked_node=INVALID;
631
632	window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
633	active_item=(get_item_at(clicked_x, clicked_y));
634
635	//find the activated item between text of nodes
636	for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i)
637	{
638	//at the same time only one can be active
639	if(nodetextmap[i]==active_item)
640	{
641	clicked_node=i;
642	}
643	}
644
645	//if there was not, search for it between nodes
646	if(clicked_node==INVALID)
647	{
648	for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i)
649	{
650	//at the same time only one can be active
651	if(nodesmap[i]==active_item)
652	{
653	clicked_node=i;
654	}
655	}
656	}
657
658	if(clicked_node==INVALID)
659	{
660	//find the activated item between texts
661	for (EdgeIt i((mytab.mapstorage).graph); i!=INVALID; ++i)
662	{
663	//at the same time only one can be active
664	if(edgetextmap[i]==active_item)
665	{
666	clicked_edge=i;
667	}
668	}
669
670	//if it was not between texts, search for it between edges
671	if(clicked_edge==INVALID)
672	{
673	for (EdgeIt i((mytab.mapstorage).graph); i!=INVALID; ++i)
674	{
675	//at the same time only one can be active
676	if((edgesmap[i]->getLine())==active_item)
677	{
678	clicked_edge=i;
679	}
680	}
681	}
682	}
683
684	//if it was really a node...
685	if(clicked_node!=INVALID)
686	{
687	// the id map is not editable
688	if (nodemap_to_edit == "label") return 0;
689
690	//and there is activated map
691	if(nodetextmap[clicked_node]->property_text().get_value()!="")
692	{
693	//activate the general variable for it
694	active_node=clicked_node;
695
696	//create a dialog
697	Gtk::Dialog dialog("Edit value", true);
698	dialog.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
699	dialog.add_button(Gtk::Stock::OK, Gtk::RESPONSE_ACCEPT);
700	Gtk::VBox* vbox = dialog.get_vbox();
701	Gtk::SpinButton spin(0.0, 4);
702	spin.set_increments(1.0, 10.0);
703	spin.set_range(-1000000.0, 1000000.0);
704	spin.set_numeric(true);
705	spin.set_value(atof(nodetextmap[active_node]->property_text().get_value().c_str()));
706	vbox->add(spin);
707	spin.show();
708	switch (dialog.run())
709	{
710	case Gtk::RESPONSE_NONE:
711	case Gtk::RESPONSE_CANCEL:
712	break;
713	case Gtk::RESPONSE_ACCEPT:
714	double new_value = spin.get_value();
715	(*(mytab.mapstorage).nodemap_storage[nodemap_to_edit])[active_node] =
716	new_value;
717	std::ostringstream ostr;
718	ostr << new_value;
719	nodetextmap[active_node]->property_text().set_value(ostr.str());
720	//mapwin.updateNode(active_node);
721	//mapwin.updateNode(Node(INVALID));
722	propertyUpdate(Node(INVALID));
723	}
724	}
725	}
726	else
727	//if it was really an edge...
728	if(clicked_edge!=INVALID)
729	{
730	// the id map is not editable
731	if (edgemap_to_edit == "label") return 0;
732
733	//and there is activated map
734	if(edgetextmap[clicked_edge]->property_text().get_value()!="")
735	{
736	//activate the general variable for it
737	active_edge=clicked_edge;
738
739	//create a dialog
740	Gtk::Dialog dialog("Edit value", true);
741	dialog.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
742	dialog.add_button(Gtk::Stock::OK, Gtk::RESPONSE_ACCEPT);
743	Gtk::VBox* vbox = dialog.get_vbox();
744	Gtk::SpinButton spin(0.0, 4);
745	spin.set_increments(1.0, 10.0);
746	spin.set_range(-1000000.0, 1000000.0);
747	spin.set_numeric(true);
748	spin.set_value(atof(edgetextmap[active_edge]->property_text().get_value().c_str()));
749	vbox->add(spin);
750	spin.show();
751	switch (dialog.run())
752	{
753	case Gtk::RESPONSE_NONE:
754	case Gtk::RESPONSE_CANCEL:
755	break;
756	case Gtk::RESPONSE_ACCEPT:
757	double new_value = spin.get_value();
758	(*(mytab.mapstorage).edgemap_storage[edgemap_to_edit])[active_edge] =
759	new_value;
760	std::ostringstream ostr;
761	ostr << new_value;
762	edgetextmap[active_edge]->property_text().set_value(
763	ostr.str());
764	//mapwin.updateEdge(active_edge);
765	// mapwin.updateEdge(Edge(INVALID));
766	propertyUpdate(Edge(INVALID));
767	}
768	}
769	}
770	break;
771	}
772	default:
773	break;
774	}
775	}
776	return false;
777	}
778
779	void GraphDisplayerCanvas::deleteItem(Node node_to_delete)
780	{
781	delete(nodetextmap[node_to_delete]);
782	delete(nodesmap[node_to_delete]);
783	(mytab.mapstorage).graph.erase(node_to_delete);
784	}
785
786	void GraphDisplayerCanvas::deleteItem(Edge edge_to_delete)
787	{
788	delete(edgetextmap[edge_to_delete]);
789	delete(edgesmap[edge_to_delete]);
790	(mytab.mapstorage).graph.erase(edge_to_delete);
791	}
792
793	void GraphDisplayerCanvas::textReposition(xy<double> new_place)
794	{
795	new_place+=(xy<double>(10,10));
796	edgetextmap[forming_edge]->property_x().set_value(new_place.x);
797	edgetextmap[forming_edge]->property_y().set_value(new_place.y);
798	}
799
800	void GraphDisplayerCanvas::toggleEdgeActivity(EdgeBase* active_bre, bool on)
801	{
802	if(on)
803	{
804	if(forming_edge!=INVALID)
805	{
806	std::cerr << "ERROR!!!! Valid edge found!" << std::endl;
807	}
808	else
809	{
810	for (EdgeIt i((mytab.mapstorage).graph); i!=INVALID; ++i)
811	{
812	if(edgesmap[i]==active_bre)
813	{
814	forming_edge=i;
815	}
816	}
817	}
818	}
819	else
820	{
821	if(forming_edge!=INVALID)
822	{
823	forming_edge=INVALID;
824	}
825	else
826	{
827	std::cerr << "ERROR!!!! Invalid edge found!" << std::endl;
828	}
829	}
830	}

Note: See TracBrowser for help on using the repository browser.

Download in other formats: