ladanyi@53: #include "graph_displayer_canvas.h"
ladanyi@53: #include "broken_edge.h"
hegyi@27: #include <math.h>
hegyi@27: 
hegyi@27: 
hegyi@27: bool GraphDisplayerCanvas::on_expose_event(GdkEventExpose *event)
hegyi@27: {
hegyi@27:   Gnome::Canvas::CanvasAA::on_expose_event(event);
hegyi@27:   //usleep(10000);
hegyi@27:   //rezoom();
hegyi@27:   return true;
hegyi@27: }
hegyi@27: 
hegyi@27: void GraphDisplayerCanvas::changeEditorialTool(int newtool)
hegyi@27: {
hegyi@34:   if(actual_tool!=newtool)
hegyi@34:     {
hegyi@27: 
hegyi@34:       actual_handler.disconnect();
hegyi@27: 
hegyi@34:       switch(actual_tool)
hegyi@34: 	{
hegyi@34: 	case CREATE_EDGE:
hegyi@34: 	  {
hegyi@34: 	    GdkEvent * generated=new GdkEvent();
hegyi@34: 	    generated->type=GDK_BUTTON_RELEASE;
hegyi@34: 	    generated->button.button=3;
hegyi@34: 	    createEdgeEventHandler(generated);      
hegyi@34: 	    break;
hegyi@34: 	  }
hegyi@34: 	case EDGE_MAP_EDIT:
hegyi@35: 	  //has to do the same thing as in the case of NODE_MAP_EDIT
hegyi@35: 	case NODE_MAP_EDIT:
hegyi@35: 	  {
hegyi@35: 	    GdkEvent * generated=new GdkEvent();
hegyi@35: 	    generated->type=GDK_KEY_PRESS;
hegyi@35: 	    ((GdkEventKey*)generated)->keyval=GDK_KP_Enter;
hegyi@35: 	    entryWidgetChangeHandler(generated);
hegyi@35: 	    entrywidget.hide();
hegyi@35: 	    break;
hegyi@35: 	  }
hegyi@34: 	default:
hegyi@34: 	  break;
hegyi@34: 	}
hegyi@27: 
hegyi@34:       active_item=NULL; 
hegyi@34:       target_item=NULL; 
hegyi@34:       active_edge=INVALID;	
hegyi@34:       active_node=INVALID;	
hegyi@33: 
hegyi@27: 
hegyi@34:       actual_tool=newtool;
hegyi@34:   
hegyi@34:       switch(newtool)
hegyi@34: 	{
hegyi@34: 	case MOVE:
hegyi@34: 	  actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::moveEventHandler), false);
hegyi@34: 	  break;
hegyi@27: 
hegyi@34: 	case CREATE_NODE:
hegyi@34: 	  actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::createNodeEventHandler), false);
hegyi@34: 	  break;
hegyi@27: 
hegyi@34: 	case CREATE_EDGE:
hegyi@34: 	  actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::createEdgeEventHandler), false);
hegyi@34: 	  break;
hegyi@27: 
hegyi@34: 	case ERASER:
hegyi@34: 	  actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::eraserEventHandler), false);
hegyi@34: 	  break;
hegyi@32: 
hegyi@34: 	case EDGE_MAP_EDIT:
hegyi@34: 	  grab_focus();
hegyi@34: 	  actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::edgeMapEditEventHandler), false);
hegyi@34: 	  break;
hegyi@32: 
hegyi@34: 	case NODE_MAP_EDIT:
hegyi@34: 	  actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::nodeMapEditEventHandler), false);
hegyi@34: 	  break;
hegyi@34: 
hegyi@34: 	default:
hegyi@34: 	  break;
hegyi@34: 	}
hegyi@27:     }
hegyi@27: }
hegyi@27: 
hegyi@30: int GraphDisplayerCanvas::getActualTool()
hegyi@27: {
hegyi@27:   return actual_tool;
hegyi@27: }
hegyi@27: 
hegyi@30: bool GraphDisplayerCanvas::moveEventHandler(GdkEvent* e)
hegyi@27: {
hegyi@27:   switch(e->type)
hegyi@27:   {
hegyi@27:     case GDK_BUTTON_PRESS:
hegyi@27:       //we mark the location of the event to be able to calculate parameters of dragging
hegyi@31:       window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
hegyi@31: 
hegyi@31:       active_item=(get_item_at(clicked_x, clicked_y));
hegyi@27:       active_node=INVALID;
ladanyi@53:       for (NodeIt i(mapstorage.graph); i!=INVALID; ++i)
hegyi@27: 	{
hegyi@27: 	  if(nodesmap[i]==active_item)
hegyi@27: 	    {
hegyi@27: 	      active_node=i;
hegyi@27: 	    }
hegyi@27: 	}
hegyi@27:       switch(e->button.button)
hegyi@27: 	{
hegyi@27: 	case 3:      
hegyi@27: 	  isbutton=3;
hegyi@27: 	  break;
hegyi@27: 	default:
hegyi@27: 	  isbutton=1;
hegyi@27: 	  break;
hegyi@27: 	}
hegyi@27:       break;
hegyi@27:     case GDK_BUTTON_RELEASE:
hegyi@27:       isbutton=0;
hegyi@27:       active_item=NULL;
hegyi@27:       active_node=INVALID;
hegyi@27:       break;
hegyi@27:     case GDK_MOTION_NOTIFY:
hegyi@27:       //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
hegyi@27:       if(active_node!=INVALID)
hegyi@27:       {
ladanyi@53:         mapstorage.modified = true;
ladanyi@53:         mapstorage.coords.set(active_node, xy<double>(clicked_x, clicked_y));
hegyi@27: 	//new coordinates will be the old values,
hegyi@27: 	//because the item will be moved to the
hegyi@27: 	//new coordinate therefore the new movement
hegyi@27: 	//has to be calculated from here
hegyi@27: 
hegyi@31: 	double new_x, new_y;
hegyi@31: 
hegyi@31: 	window_to_world (e->motion.x, e->motion.y, new_x, new_y);
hegyi@31: 
hegyi@31:         double dx=new_x-clicked_x;
hegyi@31:         double dy=new_y-clicked_y;
hegyi@27: 
hegyi@28: 	//repositioning node and its text
hegyi@27:         active_item->move(dx, dy);
hegyi@28: 	nodetextmap[active_node]->move(dx, dy);
hegyi@27: 
hegyi@31:         clicked_x=new_x;
hegyi@31:         clicked_y=new_y;
hegyi@27: 
hegyi@27: 	//all the edges connected to the moved point has to be redrawn
hegyi@27:         EdgeIt ei;
hegyi@27: 
ladanyi@53:         mapstorage.graph.firstOut(ei,active_node);
hegyi@27: 
ladanyi@53:         for(;ei!=INVALID;mapstorage.graph.nextOut(ei))
hegyi@27:         {
hegyi@27:             Gnome::Canvas::Points coos;
hegyi@27:             double x1, x2, y1, y2;
hegyi@27: 
ladanyi@53:             nodesmap[mapstorage.graph.source(ei)]->get_bounds(x1, y1, x2, y2);
hegyi@27:             coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
hegyi@27: 
ladanyi@53:             nodesmap[mapstorage.graph.target(ei)]->get_bounds(x1, y1, x2, y2);
hegyi@27:             coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
hegyi@27: 
hegyi@27: 	    if(isbutton==3)
hegyi@27: 	      {
hegyi@30: 		edgesmap[ei]->setPoints(coos);
hegyi@27: 	      }
hegyi@27: 	    else
hegyi@27: 	      {
hegyi@30: 		edgesmap[ei]->setPoints(coos,true);
hegyi@27: 	      }
hegyi@27: 
hegyi@28: 	    //reposition of edgetext
hegyi@30: 	    xy<double> text_pos=edgesmap[ei]->getArrowPos();
hegyi@27: 	    text_pos+=(xy<double>(10,10));
hegyi@27: 	    edgetextmap[ei]->property_x().set_value(text_pos.x);
hegyi@27: 	    edgetextmap[ei]->property_y().set_value(text_pos.y);
hegyi@27:         }
hegyi@27: 
ladanyi@53:         mapstorage.graph.firstIn(ei,active_node);
ladanyi@53:         for(;ei!=INVALID;mapstorage.graph.nextIn(ei))
hegyi@27:         {
hegyi@27:             Gnome::Canvas::Points coos;
hegyi@27:             double x1, x2, y1, y2;
hegyi@27: 
ladanyi@53:             nodesmap[mapstorage.graph.source(ei)]->get_bounds(x1, y1, x2, y2);
hegyi@27:             coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
hegyi@27: 
ladanyi@53:             nodesmap[mapstorage.graph.target(ei)]->get_bounds(x1, y1, x2, y2);
hegyi@27:             coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
hegyi@27: 
hegyi@27: 	    if(isbutton==3)
hegyi@27: 	      {
hegyi@30: 		edgesmap[ei]->setPoints(coos);
hegyi@27: 	      }
hegyi@27: 	    else
hegyi@27: 	      {
hegyi@30: 		edgesmap[ei]->setPoints(coos,true);
hegyi@27: 	      }
hegyi@27: 
hegyi@30: 	    xy<double> text_pos=edgesmap[ei]->getArrowPos();
hegyi@27: 	    text_pos+=(xy<double>(10,10));
hegyi@27: 	    edgetextmap[ei]->property_x().set_value(text_pos.x);
hegyi@27: 	    edgetextmap[ei]->property_y().set_value(text_pos.y);
hegyi@27:         }
hegyi@27:       }
hegyi@27:     default: break;
hegyi@27:   }
hegyi@27: 
hegyi@31:   return false;
hegyi@27: }
hegyi@27: 
hegyi@30: bool GraphDisplayerCanvas::createNodeEventHandler(GdkEvent* e)
hegyi@27: {
hegyi@27:   switch(e->type)
hegyi@27:     {
hegyi@27: 
hegyi@27:       //draw the new node in red at the clicked place
hegyi@31:     case GDK_2BUTTON_PRESS:
hegyi@48:       //std::cout << "double click" << std::endl;
hegyi@31:       break;
hegyi@27:     case GDK_BUTTON_PRESS:
ladanyi@53:       mapstorage.modified = true;
ladanyi@53: 
hegyi@27:       isbutton=1;
hegyi@27: 
ladanyi@53:       active_node=NodeIt(mapstorage.graph,mapstorage.graph.addNode());
hegyi@27: 
hegyi@27:       //initiating values corresponding to new node in maps
hegyi@27: 
hegyi@27:       window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
hegyi@27: 
ladanyi@53:       mapstorage.coords.set(active_node, xy<double>(clicked_x, clicked_y));
ladanyi@53:       (*mapstorage.nodemap_storage["id"])[active_node] =
ladanyi@53:         mapstorage.graph.id(active_node);
ladanyi@53: 
ladanyi@53:       nodesmap[active_node]=new Gnome::Canvas::Ellipse(displayed_graph,
ladanyi@53:         clicked_x-20, clicked_y-20, clicked_x+20, clicked_y+20);
hegyi@27:       active_item=(Gnome::Canvas::Item *)(nodesmap[active_node]);
hegyi@27:       *(nodesmap[active_node]) << Gnome::Canvas::Properties::fill_color("red");
hegyi@27:       *(nodesmap[active_node]) << Gnome::Canvas::Properties::outline_color("black");
hegyi@27:       (nodesmap[active_node])->show();
hegyi@28: 
ladanyi@53:       nodetextmap[active_node]=new Gnome::Canvas::Text(displayed_graph,
ladanyi@53:         clicked_x+node_property_defaults[N_RADIUS]+5,
ladanyi@53:         clicked_y+node_property_defaults[N_RADIUS]+5, "");
hegyi@28:       nodetextmap[active_node]->property_fill_color().set_value("darkblue");
hegyi@28: 
ladanyi@53:       mapwin.updateNode(active_node);
hegyi@28: 
hegyi@27:       break;
hegyi@27: 
hegyi@27:       //move the new node
hegyi@27:     case GDK_MOTION_NOTIFY:
hegyi@27:       {
hegyi@27: 	GdkEvent * generated=new GdkEvent();
hegyi@31: 	generated->motion.x=e->motion.x;
hegyi@31: 	generated->motion.y=e->motion.y;
hegyi@27: 	generated->type=GDK_MOTION_NOTIFY;
hegyi@30: 	moveEventHandler(generated);      
hegyi@27: 	break;
hegyi@27:       }
hegyi@27: 
hegyi@27:       //finalize the new node
hegyi@27:     case GDK_BUTTON_RELEASE:
hegyi@35:       window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
hegyi@35: 
hegyi@35:       active_item->lower_to_bottom();
hegyi@35: 
hegyi@35:       target_item=NULL;
hegyi@35:       target_item=get_item_at(clicked_x, clicked_y);
hegyi@35: 
hegyi@35:       active_item->raise_to_top();
hegyi@35: 
hegyi@27:       isbutton=0;
hegyi@35:       if(target_item==active_item)
hegyi@31: 	{
hegyi@31: 	  //Its appropriate color is given by update.
hegyi@35: 	  *active_item << Gnome::Canvas::Properties::fill_color("blue");
hegyi@31: 	}
hegyi@31:       else
hegyi@31: 	{
hegyi@31: 	  //In this case the given color has to be overwritten, because the noe covers an other item.
hegyi@31: 	  *active_item << Gnome::Canvas::Properties::fill_color("lightblue");
hegyi@31: 	}
hegyi@31:       target_item=NULL;
hegyi@27:       active_item=NULL;
hegyi@27:       active_node=INVALID;
hegyi@27:       break;
hegyi@27:     default:
hegyi@27:       break;
hegyi@27:     }
hegyi@27:   return false;
hegyi@27: }
hegyi@27: 
hegyi@30: bool GraphDisplayerCanvas::createEdgeEventHandler(GdkEvent* e)
hegyi@27: {
hegyi@27:   switch(e->type)
hegyi@27:     {
hegyi@27:     case GDK_BUTTON_PRESS:
hegyi@27:       //in edge creation right button has special meaning
hegyi@27:       if(e->button.button!=3)
hegyi@27: 	{
hegyi@27: 	  //there is not yet selected node
hegyi@27: 	  if(active_node==INVALID)
hegyi@27: 	    {
hegyi@27: 	      //we mark the location of the event to be able to calculate parameters of dragging
hegyi@31: 
hegyi@31: 	      window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
hegyi@31: 
hegyi@31: 	      active_item=(get_item_at(clicked_x, clicked_y));
hegyi@27: 	      active_node=INVALID;
ladanyi@53: 	      for (NodeIt i(mapstorage.graph); i!=INVALID; ++i)
hegyi@27: 		{
hegyi@27: 		  if(nodesmap[i]==active_item)
hegyi@27: 		    {
hegyi@27: 		      active_node=i;
hegyi@27: 		    }
hegyi@27: 		}
hegyi@27: 	      //the clicked item is really a node
hegyi@27: 	      if(active_node!=INVALID)
hegyi@27: 		{
hegyi@27: 		  *(nodesmap[active_node]) << Gnome::Canvas::Properties::fill_color("red");
hegyi@27: 		  isbutton=1;
hegyi@27: 		}
hegyi@27: 	      //clicked item was not a node. It could be e.g. edge.
hegyi@27: 	      else
hegyi@27: 		{
hegyi@27: 		  active_item=NULL;
hegyi@27: 		}
hegyi@27: 	    }
hegyi@27: 	  //we only have to do sg. if the mouse button
hegyi@27: 	  // is pressed already once AND the click was
hegyi@27: 	  // on a node that was found in the set of 
hegyi@27: 	  //nodes, and now we only search for the second 
hegyi@27: 	  //node
hegyi@27: 	  else
hegyi@27: 	    {
hegyi@31: 	      window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
hegyi@31: 	      target_item=(get_item_at(clicked_x, clicked_y));
hegyi@27: 	      Graph::NodeIt target_node=INVALID;
ladanyi@53: 	      for (NodeIt i(mapstorage.graph); i!=INVALID; ++i)
hegyi@27: 		{
hegyi@27: 		  if(nodesmap[i]==target_item)
hegyi@27: 		    {
hegyi@27: 		      target_node=i;
hegyi@27: 		    }
hegyi@27: 		}
hegyi@27: 	      //the clicked item is a node, the edge can be drawn
hegyi@27: 	      if(target_node!=INVALID)
hegyi@27: 		{
hegyi@28: 		  if(target_node!=active_node)		
hegyi@28: 		    {
ladanyi@53:           mapstorage.modified = true;
ladanyi@53: 
hegyi@28: 		      *(nodesmap[target_node]) << Gnome::Canvas::Properties::fill_color("red");
hegyi@27: 
hegyi@28: 		      //creating new edge
ladanyi@53: 		      active_edge=EdgeIt(mapstorage.graph,mapstorage.graph.addEdge(active_node, target_node));
hegyi@27: 
hegyi@28: 		      //initiating values corresponding to new edge in maps
hegyi@30: 		      mapstorage.initMapsForEdge(active_edge);
ladanyi@53:                       (*mapstorage.edgemap_storage["id"])[active_edge] = mapstorage.graph.id(active_edge);
hegyi@27: 	  
hegyi@28: 		      //calculating coordinates of new edge
hegyi@28: 		      Gnome::Canvas::Points coos;
hegyi@28: 		      double x1, x2, y1, y2;
hegyi@27: 	  
hegyi@28: 		      active_item->get_bounds(x1, y1, x2, y2);
hegyi@28: 		      coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
hegyi@27: 
hegyi@28: 		      target_item->get_bounds(x1, y1, x2, y2);
hegyi@28: 		      coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
hegyi@27: 
hegyi@28: 		      //drawing new edge
hegyi@28: 		      edgesmap[active_edge]=new BrokenEdge(displayed_graph, coos, *this);
hegyi@28: 		      *(edgesmap[active_edge]) << Gnome::Canvas::Properties::fill_color("green");
hegyi@28: 		      edgesmap[active_edge]->property_width_pixels().set_value(10);
hegyi@27: 
hegyi@28: 		      //redraw nodes to blank terminations of the new edge
hegyi@28: 		      target_item->raise_to_top();
hegyi@28: 		      active_item->raise_to_top();
hegyi@27: 
hegyi@28: 		      //initializing edge-text as well, to empty string
hegyi@30: 		      xy<double> text_pos=edgesmap[active_edge]->getArrowPos();
hegyi@28: 		      text_pos+=(xy<double>(10,10));
hegyi@27: 
hegyi@28: 		      edgetextmap[active_edge]=new Gnome::Canvas::Text(displayed_graph, text_pos.x, text_pos.y, "");
hegyi@28: 		      edgetextmap[active_edge]->property_fill_color().set_value("darkgreen");
hegyi@28: 
hegyi@28: 		      //updating its properties
ladanyi@53: 		      mapwin.updateEdge(active_edge);
hegyi@28: 		    }
hegyi@28: 		  else
hegyi@28: 		    {
hegyi@28: 		      target_node=INVALID;
hegyi@48: 		      std::cerr << "Loop edge is not yet implemented!" << std::endl;
hegyi@28: 		    }
hegyi@27: 		}
hegyi@27: 	      //clicked item was not a node. it could be an e.g. edge. we do not deal with it furthermore.
hegyi@27: 	      else
hegyi@27: 		{
hegyi@27: 		  target_item=NULL;
hegyi@27: 		}
hegyi@27: 	    }
hegyi@27: 	}
hegyi@27:       break;
hegyi@27:     case GDK_BUTTON_RELEASE:
hegyi@27:       isbutton=0;
hegyi@27:       //we clear settings in two cases
hegyi@27:       //1: the edge is ready (target_item has valid value)
hegyi@27:       //2: the edge creation is cancelled with right button
hegyi@27:       if((target_item)||(e->button.button==3))
hegyi@27: 	{
hegyi@27: 	  if(active_item)
hegyi@27: 	    {
hegyi@27: 	      *active_item << Gnome::Canvas::Properties::fill_color("blue");
hegyi@27: 	      active_item=NULL;
hegyi@27: 	    }
hegyi@27: 	  if(target_item)
hegyi@27: 	    {
hegyi@27: 	      *target_item << Gnome::Canvas::Properties::fill_color("blue");
hegyi@27: 	      target_item=NULL;
hegyi@27: 	    }
hegyi@27: 	  active_node=INVALID;
hegyi@27: 	  active_edge=INVALID;
hegyi@27: 	}
hegyi@27:       break;
hegyi@27:     default:
hegyi@27:       break;
hegyi@27:     }
hegyi@27:   return false;
hegyi@27: }
hegyi@27: 
hegyi@30: bool GraphDisplayerCanvas::eraserEventHandler(GdkEvent* e)
hegyi@27: {
hegyi@27:   switch(e->type)
hegyi@27:     {
hegyi@27:     case GDK_BUTTON_PRESS:
hegyi@43:       //finding the clicked items
hegyi@31:       window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
hegyi@31:       active_item=(get_item_at(clicked_x, clicked_y));
hegyi@27:       active_node=INVALID;
hegyi@27:       active_edge=INVALID;
hegyi@43:       //was it a node?
ladanyi@53:       for (NodeIt i(mapstorage.graph); i!=INVALID; ++i)
hegyi@27: 	{
hegyi@27: 	  if(nodesmap[i]==active_item)
hegyi@27: 	    {
hegyi@27: 	      active_node=i;
hegyi@27: 	    }
hegyi@27: 	}
hegyi@43:       //or was it an edge?
hegyi@27:       if(active_node==INVALID)
hegyi@27: 	{
ladanyi@53: 	  for (EdgeIt i(mapstorage.graph); i!=INVALID; ++i)
hegyi@27: 	    {
hegyi@27: 	      if(edgesmap[i]==active_item)
hegyi@27: 		{
hegyi@27: 		  active_edge=i;
hegyi@27: 		}
hegyi@27: 	    }
hegyi@27: 	}
hegyi@43: 
hegyi@43:       //recolor activated item
hegyi@31:       if(active_item)
hegyi@31: 	{
hegyi@31: 	  *active_item << Gnome::Canvas::Properties::fill_color("red");
hegyi@31: 	}
hegyi@27:       break;
hegyi@27: 
hegyi@27:     case GDK_BUTTON_RELEASE:
hegyi@31:       window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
hegyi@31:       if(active_item)
hegyi@27: 	{
hegyi@43: 	  //the cursor was not moved since pressing it
hegyi@31: 	  if( active_item == ( get_item_at (clicked_x, clicked_y) ) )
hegyi@27: 	    {
hegyi@43: 	      //a node was found
hegyi@31: 	      if(active_node!=INVALID)
hegyi@31: 		{
ladanyi@53:                   mapstorage.modified = true;
hegyi@27: 
hegyi@31: 		  //collecting edges to delete
hegyi@31: 		  EdgeIt e;
hegyi@31: 		  std::set<Graph::Edge> edges_to_delete;
hegyi@27: 
ladanyi@53: 		  mapstorage.graph.firstOut(e,active_node);
ladanyi@53: 		  for(;e!=INVALID;mapstorage.graph.nextOut(e))
hegyi@31: 		    {
hegyi@31: 		      edges_to_delete.insert(e);
hegyi@31: 		    }
hegyi@31: 
ladanyi@53: 		  mapstorage.graph.firstIn(e,active_node);
ladanyi@53: 		  for(;e!=INVALID;mapstorage.graph.nextIn(e))
hegyi@31: 		    {
hegyi@31: 		      edges_to_delete.insert(e);
hegyi@31: 		    }
hegyi@31: 
hegyi@31: 		  //deleting collected edges
hegyi@31: 		  for(std::set<Graph::Edge>::iterator edge_set_it=edges_to_delete.begin();edge_set_it!=edges_to_delete.end();edge_set_it++)
hegyi@31: 		    {
hegyi@31: 		      deleteItem(*edge_set_it);
hegyi@31: 		    }
hegyi@31: 		  deleteItem(active_node);
hegyi@31: 		}
hegyi@31: 	      //a simple edge was chosen
hegyi@31: 	      else
hegyi@27: 		{
hegyi@31: 		  deleteItem(active_edge);
hegyi@27: 		}
hegyi@27: 	    }
hegyi@31: 	  //pointer was moved, deletion is cancelled
hegyi@27: 	  else
hegyi@27: 	    {
hegyi@31: 	      if(active_node!=INVALID)
hegyi@31: 		{
hegyi@31: 		  *active_item << Gnome::Canvas::Properties::fill_color("blue");
hegyi@31: 		}
hegyi@31: 	      else
hegyi@31: 		{
hegyi@31: 		  *active_item << Gnome::Canvas::Properties::fill_color("green");
hegyi@31: 		}
hegyi@27: 	    }
hegyi@27: 	}
hegyi@27:       //reseting datas
hegyi@27:       active_item=NULL;
hegyi@27:       active_edge=INVALID;
hegyi@27:       active_node=INVALID;
hegyi@27:       break;
hegyi@27: 
hegyi@27:     case GDK_MOTION_NOTIFY:
hegyi@27:       break;
hegyi@27: 
hegyi@27:     default:
hegyi@27:       break;
hegyi@27:     }
hegyi@31:   return false;
hegyi@27: }
hegyi@27: 
hegyi@32: bool GraphDisplayerCanvas::edgeMapEditEventHandler(GdkEvent* e)
hegyi@32: {
hegyi@48:   if(actual_tool==EDGE_MAP_EDIT)
hegyi@32:     {
hegyi@48:       switch(e->type)
hegyi@48: 	{
hegyi@48: 	case GDK_KEY_PRESS:
hegyi@48: 	  //for Escape or Enter hide the displayed widget
hegyi@48: 	  {
hegyi@48: 	    nodeMapEditEventHandler(e);
hegyi@48: 	    break;
hegyi@48: 	  }
hegyi@48: 	case GDK_BUTTON_PRESS:
hegyi@48: 	  //If the click happened on an edge we place the entrywidget there and fill in the value of the activated map at that edge.
hegyi@48: 	  {
hegyi@48: 	    //for determine, whether it was an edge
hegyi@48: 	    Graph::EdgeIt clicked_edge=INVALID;
hegyi@43: 
hegyi@48: 	    //find the activated item between texts
hegyi@48: 	    active_item=(get_item_at(e->button.x, e->button.y));
ladanyi@53: 	    for (EdgeIt i(mapstorage.graph); i!=INVALID; ++i)
hegyi@34: 	      {
hegyi@48: 		if(edgetextmap[i]==active_item)
hegyi@48: 		  {
hegyi@48: 		    clicked_edge=i;
hegyi@48: 		  }
hegyi@34: 	      }
hegyi@48: 
hegyi@48: 	    //if it was not between texts, search for it between edges
hegyi@48: 	    if(clicked_edge==INVALID)
hegyi@34: 	      {
hegyi@48: 		window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
hegyi@48: 		active_item=(get_item_at(clicked_x, clicked_y));
hegyi@48: 
ladanyi@53: 		for (EdgeIt i(mapstorage.graph); i!=INVALID; ++i)
hegyi@48: 		  {
hegyi@48: 		    //at the same time only one can be active
hegyi@48: 		    if((edgesmap[i]==active_item)||(edgetextmap[i]==active_item))
hegyi@48: 		      {
hegyi@48: 			clicked_edge=i;
hegyi@48: 		      }
hegyi@48: 		  }
hegyi@48: 	      }
hegyi@48: 	    //if it was really an edge...
hegyi@48: 	    if(clicked_edge!=INVALID)
hegyi@48: 	      {
hegyi@48: 		//If there is already edited edge, it has to be saved first
hegyi@48: 		if(entrywidget.is_visible())
hegyi@48: 		  {
hegyi@48: 		    GdkEvent * generated=new GdkEvent();
hegyi@48: 		    generated->type=GDK_KEY_PRESS;
hegyi@48: 		    ((GdkEventKey*)generated)->keyval=GDK_KP_Enter;
hegyi@48: 		    entryWidgetChangeHandler(generated);
hegyi@48: 		  }
hegyi@48: 		//If the previous value could be saved, we can go further, otherwise not
hegyi@48: 		if(!entrywidget.is_visible())
hegyi@48: 		  {
hegyi@48: 		    //and there is activated map
hegyi@48: 		    if(edgetextmap[clicked_edge]->property_text().get_value()!="")
hegyi@48: 		      {
hegyi@48: 			//activate the general variable for it
hegyi@48: 			active_edge=clicked_edge;
hegyi@48: 			//delete visible widget if there is
hegyi@48: 			if(canvasentrywidget)
hegyi@48: 			  {
hegyi@48: 			    delete(canvasentrywidget);
hegyi@48: 			  }
hegyi@48: 
hegyi@48: 			//initialize the entry
hegyi@48: 			entrywidget.show();
hegyi@48: 
hegyi@48: 			//fill in the correct value
hegyi@48: 			entrywidget.set_text(edgetextmap[active_edge]->property_text().get_value());
hegyi@48: 
hegyi@48: 			//replace and resize the entry to the activated edge and put it in a Canvas::Widget to be able to display it on gdc
hegyi@48: 			xy<double> entry_coos;
hegyi@48: 			entry_coos.x=(edgetextmap[active_edge])->property_x().get_value();
hegyi@48: 			entry_coos.x-=edgetextmap[active_edge]->property_text_width().get_value()/2;
hegyi@48: 			entry_coos.y=(edgetextmap[active_edge])->property_y().get_value();
hegyi@48: 			entry_coos.y-=edgetextmap[active_edge]->property_text_height().get_value()*1.5/2;
hegyi@48: 			canvasentrywidget=new Gnome::Canvas::Widget(displayed_graph, entry_coos.x, entry_coos.y, entrywidget);
hegyi@48: 			canvasentrywidget->property_width().set_value(edgetextmap[active_edge]->property_text_width().get_value()*4);
hegyi@48: 			canvasentrywidget->property_height().set_value(edgetextmap[active_edge]->property_text_height().get_value()*1.5);
hegyi@55: 
hegyi@55: 			//setting the focus to newly created widget
hegyi@55: 			parentwin->set_focus(entrywidget);
hegyi@55: 			parentwin->activate_focus();
hegyi@48: 		      }
hegyi@48: 		  }
hegyi@48: 	      }
hegyi@48: 	    //if it was not an edge...
hegyi@48: 	    else
hegyi@48: 	      {
hegyi@48: 		//In this case the click did not happen on an edge
hegyi@48: 		//if there is visible entry we save the value in it
hegyi@48: 		//we pretend like an Enter was presse din the Entry widget
hegyi@43: 		GdkEvent * generated=new GdkEvent();
hegyi@43: 		generated->type=GDK_KEY_PRESS;
hegyi@43: 		((GdkEventKey*)generated)->keyval=GDK_KP_Enter;
hegyi@43: 		entryWidgetChangeHandler(generated);
hegyi@43: 	      }
hegyi@48: 	    break;
hegyi@34: 	  }
hegyi@48: 	default:
hegyi@48: 	  break;
hegyi@48: 	}
hegyi@32:     }
hegyi@32:   return false;  
hegyi@32: }
hegyi@32: 
hegyi@32: bool GraphDisplayerCanvas::nodeMapEditEventHandler(GdkEvent* e)
hegyi@32: {
hegyi@48:   if(actual_tool==NODE_MAP_EDIT)
hegyi@35:     {
hegyi@48:       switch(e->type)
hegyi@48: 	{
hegyi@48: 	case GDK_KEY_PRESS:
hegyi@48: 	  //for Escape or Enter hide the displayed widget
hegyi@35: 	  {
hegyi@48: 	    switch(((GdkEventKey*)e)->keyval)
hegyi@48: 	      {
hegyi@48: 	      case GDK_Escape:
hegyi@48: 		entrywidget.hide();
hegyi@48: 		break;
hegyi@48: 	      case GDK_Return:
hegyi@48: 	      case GDK_KP_Enter:
hegyi@48: 		entrywidget.hide();
hegyi@48: 		break;
hegyi@48: 	      default:
hegyi@48: 		break;
hegyi@48: 	      }
hegyi@48:   
hegyi@35: 	    break;
hegyi@35: 	  }
hegyi@48: 	case GDK_BUTTON_PRESS:
hegyi@48: 	  //If the click happened on an edge we place the entrywidget there and fill in the value of the activated map at that edge.
hegyi@48: 	  {
hegyi@48: 	    //for determine, whether it was a node
hegyi@48: 	    Graph::NodeIt clicked_node=INVALID;
hegyi@43: 
hegyi@48: 	    //find the activated item between texts
hegyi@48: 	    active_item=(get_item_at(e->button.x, e->button.y));
ladanyi@53: 	    for (NodeIt i(mapstorage.graph); i!=INVALID; ++i)
hegyi@35: 	      {
hegyi@48: 		//at the same time only one can be active
hegyi@48: 		if(nodetextmap[i]==active_item)
hegyi@48: 		  {
hegyi@48: 		    clicked_node=i;
hegyi@48: 		  }
hegyi@35: 	      }
hegyi@43: 
hegyi@48: 	    //if there was not, search for it between nodes
hegyi@48: 	    if(clicked_node==INVALID)
hegyi@35: 	      {
hegyi@48: 		window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
hegyi@48: 		active_item=(get_item_at(clicked_x, clicked_y));
hegyi@48: 
ladanyi@53: 		for (NodeIt i(mapstorage.graph); i!=INVALID; ++i)
hegyi@48: 		  {
hegyi@48: 		    //at the same time only one can be active
hegyi@48: 		    if(nodesmap[i]==active_item)
hegyi@48: 		      {
hegyi@48: 			clicked_node=i;
hegyi@48: 		      }
hegyi@48: 		  }
hegyi@48: 	      }
hegyi@48: 	    //if it was really an edge...
hegyi@48: 	    if(clicked_node!=INVALID)
hegyi@48: 	      {
hegyi@48: 		//If there is already edited edge, it has to be saved first
hegyi@48: 		if(entrywidget.is_visible())
hegyi@48: 		  {
hegyi@48: 		    GdkEvent * generated=new GdkEvent();
hegyi@48: 		    generated->type=GDK_KEY_PRESS;
hegyi@48: 		    ((GdkEventKey*)generated)->keyval=GDK_KP_Enter;
hegyi@48: 		    entryWidgetChangeHandler(generated);
hegyi@48: 		  }
hegyi@48: 		//If the previous value could be saved, we can go further, otherwise not
hegyi@48: 		if(!entrywidget.is_visible())
hegyi@48: 		  {
hegyi@48: 		    //and there is activated map
hegyi@48: 		    if(nodetextmap[clicked_node]->property_text().get_value()!="")
hegyi@48: 		      {
hegyi@48: 			//activate the general variable for it
hegyi@48: 			active_node=clicked_node;
hegyi@48: 			//delete visible widget if there is
hegyi@48: 			if(canvasentrywidget)
hegyi@48: 			  {
hegyi@48: 			    delete(canvasentrywidget);
hegyi@48: 			  }
hegyi@48: 
hegyi@48: 			//initialize the entry
hegyi@48: 			entrywidget.show();
hegyi@48: 
hegyi@48: 			//fill in the correct value
hegyi@48: 			entrywidget.set_text(nodetextmap[active_node]->property_text().get_value());
hegyi@48: 
hegyi@48: 			//replace and resize the entry to the activated node and put it in a Canvas::Widget to be able to display it on gdc
hegyi@48: 			xy<double> entry_coos;
hegyi@48: 			entry_coos.x=(nodetextmap[active_node])->property_x().get_value();
hegyi@48: 			entry_coos.x-=nodetextmap[active_node]->property_text_width().get_value()/2;
hegyi@48: 			entry_coos.y=(nodetextmap[active_node])->property_y().get_value();
hegyi@48: 			entry_coos.y-=nodetextmap[active_node]->property_text_height().get_value()*1.5/2;
hegyi@48: 			canvasentrywidget=new Gnome::Canvas::Widget(displayed_graph, entry_coos.x, entry_coos.y, entrywidget);
hegyi@48: 			canvasentrywidget->property_width().set_value(nodetextmap[active_node]->property_text_width().get_value()*4);
hegyi@48: 			canvasentrywidget->property_height().set_value(nodetextmap[active_node]->property_text_height().get_value()*1.5);
hegyi@48: 		      }
hegyi@48: 		  }
hegyi@48: 	      }
hegyi@48: 	    //if it was not an edge...
hegyi@48: 	    else
hegyi@48: 	      {
hegyi@48: 		//In this case the click did not happen on an edge
hegyi@48: 		//if there is visible entry we save the value in it
hegyi@48: 		//we pretend like an Enter was presse din the Entry widget
hegyi@35: 		GdkEvent * generated=new GdkEvent();
hegyi@35: 		generated->type=GDK_KEY_PRESS;
hegyi@35: 		((GdkEventKey*)generated)->keyval=GDK_KP_Enter;
hegyi@35: 		entryWidgetChangeHandler(generated);
hegyi@35: 	      }
hegyi@48: 	    break;
hegyi@35: 	  }
hegyi@48: 	default:
hegyi@48: 	  break;
hegyi@48: 	}
hegyi@35:     }
hegyi@35:   return false;  
hegyi@32: }
hegyi@32: 
hegyi@34: bool GraphDisplayerCanvas::entryWidgetChangeHandler(GdkEvent* e)
hegyi@34: {
hegyi@35:   if(entrywidget.is_visible())
hegyi@35:     {
hegyi@35:       if(e->type==GDK_KEY_PRESS)
hegyi@35: 	{
hegyi@35: 	  switch(((GdkEventKey*)e)->keyval)
hegyi@35: 	    {
hegyi@35: 	    case GDK_Escape:
hegyi@35: 	      entrywidget.hide();
hegyi@35: 	      break;
hegyi@35: 	    case GDK_KP_Enter:
hegyi@35: 	    case GDK_Return:
hegyi@35: 	      {
hegyi@43: 		//these variables check whether the text in the entry is valid
hegyi@41: 		bool valid_double=true;
hegyi@41: 		int point_num=0;
hegyi@43: 
hegyi@43: 		//getting the value from the entry and converting it to double
hegyi@41: 		Glib::ustring mapvalue_str = entrywidget.get_text();
hegyi@35: 
hegyi@41: 		char * mapvalue_ch=new char [mapvalue_str.length()];
hegyi@41: 		for(int i=0;i<(int)(mapvalue_str.length());i++)
hegyi@35: 		  {
hegyi@41: 		    if(((mapvalue_str[i]<'0')||(mapvalue_str[i]>'9'))&&(mapvalue_str[i]!='.'))
hegyi@35: 		      {
hegyi@41: 			valid_double=false;
hegyi@35: 		      }
hegyi@35: 		    else
hegyi@35: 		      {
hegyi@41: 			if(mapvalue_str[i]=='.')
hegyi@41: 			  {
hegyi@41: 			    point_num++;
hegyi@41: 			  }
hegyi@35: 		      }
hegyi@41: 		    mapvalue_ch[i]=mapvalue_str[i];
hegyi@35: 		  }
hegyi@45:   	      
hegyi@43: 		//if the text in the entry was correct
hegyi@41: 		if((point_num<=1)&&(valid_double))
hegyi@35: 		  {
hegyi@45: 		    double mapvalue_d=atof(mapvalue_ch);
hegyi@45: 
hegyi@45: 		    //reconvert the double to string for the correct format
hegyi@45: 		    std::ostringstream ostr;
hegyi@45: 		    ostr << mapvalue_d;
hegyi@45: 
hegyi@43: 		    //save the value to the correct place
hegyi@35: 		    switch(actual_tool)
hegyi@35: 		      {
hegyi@35: 		      case EDGE_MAP_EDIT:
hegyi@45: 			edgetextmap[active_edge]->property_text().set_value(ostr.str());
hegyi@41: 			(*(mapstorage.edgemap_storage)[edgemap_to_edit])[active_edge]=mapvalue_d;
ladanyi@53: 			mapwin.updateEdge(active_edge);
hegyi@35: 			break;
hegyi@35: 		      case NODE_MAP_EDIT:
hegyi@45: 			nodetextmap[active_node]->property_text().set_value(ostr.str());
hegyi@41: 			(*(mapstorage.nodemap_storage)[nodemap_to_edit])[active_node]=mapvalue_d;
ladanyi@53: 			mapwin.updateNode(active_node);
hegyi@35: 			break;
hegyi@35: 		      default:
hegyi@35: 			break;
hegyi@35: 		      }
hegyi@35: 		    entrywidget.hide();
hegyi@35: 		  }
hegyi@43: 		//the text in the entry was not correct for a double
hegyi@35: 		else
hegyi@35: 		  {
hegyi@48: 		    std::cerr << "ERROR: only handling of double values is implemented yet!" << std::endl;
hegyi@35: 		  }
hegyi@35: 
hegyi@35: 		break;
hegyi@35: 	      }
hegyi@35: 	    default:
hegyi@35: 	      break;
hegyi@35: 	    }
hegyi@35: 	}
hegyi@35:     }
hegyi@34:   return false;
hegyi@34: }
hegyi@34: 
hegyi@30: void GraphDisplayerCanvas::deleteItem(NodeIt node_to_delete)
hegyi@27: {
hegyi@28:   delete(nodetextmap[node_to_delete]);
hegyi@27:   delete(nodesmap[node_to_delete]);
ladanyi@53:   mapstorage.graph.erase(node_to_delete);
hegyi@27: }
hegyi@27: 
hegyi@30: void GraphDisplayerCanvas::deleteItem(EdgeIt edge_to_delete)
hegyi@27: {
hegyi@28:   delete(edgetextmap[edge_to_delete]);
hegyi@27:   delete(edgesmap[edge_to_delete]);
ladanyi@53:   mapstorage.graph.erase(edge_to_delete);
hegyi@27: }
hegyi@27: 
hegyi@30: void GraphDisplayerCanvas::deleteItem(Graph::Edge edge_to_delete)
hegyi@27: {
hegyi@28:   delete(edgetextmap[edge_to_delete]);
hegyi@27:   delete(edgesmap[edge_to_delete]);
ladanyi@53:   mapstorage.graph.erase(edge_to_delete);
hegyi@27: }
hegyi@27: 
hegyi@30: void GraphDisplayerCanvas::textReposition(xy<double> new_place)
hegyi@27: {
hegyi@27:   new_place+=(xy<double>(10,10));
hegyi@35:   edgetextmap[forming_edge]->property_x().set_value(new_place.x);
hegyi@35:   edgetextmap[forming_edge]->property_y().set_value(new_place.y);
hegyi@27: }
hegyi@27: 
hegyi@30: void GraphDisplayerCanvas::toggleEdgeActivity(BrokenEdge* active_bre, bool on)
hegyi@27: {
hegyi@27:   if(on)
hegyi@27:     {
hegyi@35:       if(forming_edge!=INVALID)
hegyi@27: 	{
hegyi@48: 	  std::cerr << "ERROR!!!! Valid edge found!" << std::endl;
hegyi@27: 	}
hegyi@27:       else
hegyi@27: 	{
ladanyi@53: 	  for (EdgeIt i(mapstorage.graph); i!=INVALID; ++i)
hegyi@27: 	    {
hegyi@27: 	      if(edgesmap[i]==active_bre)
hegyi@27: 		{
hegyi@35: 		  forming_edge=i;
hegyi@27: 		}
hegyi@27: 	    }
hegyi@27: 	}
hegyi@27:     }
hegyi@27:   else
hegyi@27:     {
hegyi@35:       if(forming_edge!=INVALID)
hegyi@27: 	{
hegyi@35: 	  forming_edge=INVALID;
hegyi@27: 	}
hegyi@27:       else
hegyi@27: 	{
hegyi@48: 	  std::cerr << "ERROR!!!! Invalid edge found!" << std::endl;
hegyi@27: 	}
hegyi@27:     }
hegyi@27: 
hegyi@27: }
hegyi@32: 
hegyi@46: int GraphDisplayerCanvas::addNewEdgeMap(double default_value, std::string mapname)
hegyi@37: {
hegyi@43:   //create the new map
ladanyi@53:   Graph::EdgeMap<double> * emptr=new Graph::EdgeMap<double> (mapstorage.graph, default_value);
hegyi@46: 
hegyi@46:   //if addition was not successful addEdgeMap returns one.
hegyi@46:   //cause can be that there is already a map named like the new one
hegyi@46:   if(mapstorage.addEdgeMap(mapname,emptr))
hegyi@46:     {
hegyi@46:       return 1;
hegyi@46:     }
hegyi@46: 
hegyi@43: 
hegyi@43:   //add it to the list of the displayable maps
ladanyi@53:   mapwin.registerNewEdgeMap(mapname);
hegyi@43: 
hegyi@43:   //display it
hegyi@41:   changeEdgeText(mapname);
hegyi@46: 
hegyi@46:   return 0;
hegyi@37: }
hegyi@37: 
hegyi@46: int GraphDisplayerCanvas::addNewNodeMap(double default_value, std::string mapname)
hegyi@37: {
hegyi@43:   //create the new map
ladanyi@53:   Graph::NodeMap<double> * emptr=new Graph::NodeMap<double> (mapstorage.graph,default_value);
hegyi@46: 
hegyi@46:   //if addition was not successful addNodeMap returns one.
hegyi@46:   //cause can be that there is already a map named like the new one
hegyi@46:   if(mapstorage.addNodeMap(mapname,emptr))
hegyi@46:     {
hegyi@46:       return 1;
hegyi@46:     }
hegyi@43: 
hegyi@43:   //add it to the list of the displayable maps
ladanyi@53:   mapwin.registerNewNodeMap(mapname);
hegyi@43: 
hegyi@43:   //display it
hegyi@41:   changeNodeText(mapname);
hegyi@46: 
hegyi@46:   return 0;
hegyi@37: }
hegyi@37: