gui/graph_displayer_canvas-event.cc
author hegyi
Mon, 25 Jul 2005 11:17:23 +0000
changeset 1586 1a8630f2e944
parent 1585 0e3ef435bdc3
child 1589 9192e1b26d32
permissions -rwxr-xr-x
Continuing adding new maps.
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#include <graph_displayer_canvas.h>
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#include <broken_edge.h>
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#include <math.h>
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bool GraphDisplayerCanvas::on_expose_event(GdkEventExpose *event)
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{
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  Gnome::Canvas::CanvasAA::on_expose_event(event);
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  //usleep(10000);
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  //rezoom();
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  return true;
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}
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void GraphDisplayerCanvas::changeEditorialTool(int newtool)
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{
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  if(actual_tool!=newtool)
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    {
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      actual_handler.disconnect();
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      switch(actual_tool)
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	{
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	case CREATE_EDGE:
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	  {
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	    GdkEvent * generated=new GdkEvent();
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	    generated->type=GDK_BUTTON_RELEASE;
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	    generated->button.button=3;
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	    createEdgeEventHandler(generated);      
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	    break;
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	  }
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	case EDGE_MAP_EDIT:
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	  //has to do the same thing as in the case of NODE_MAP_EDIT
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	case NODE_MAP_EDIT:
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	  {
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	    GdkEvent * generated=new GdkEvent();
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	    generated->type=GDK_KEY_PRESS;
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	    ((GdkEventKey*)generated)->keyval=GDK_KP_Enter;
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	    entryWidgetChangeHandler(generated);
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	    entrywidget.hide();
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	    break;
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	  }
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	default:
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	  break;
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	}
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      active_item=NULL; 
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      target_item=NULL; 
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      active_edge=INVALID;	
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      active_node=INVALID;	
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      actual_tool=newtool;
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      switch(newtool)
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	{
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	case MOVE:
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	  actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::moveEventHandler), false);
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	  break;
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	case CREATE_NODE:
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	  actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::createNodeEventHandler), false);
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	  break;
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	case CREATE_EDGE:
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	  actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::createEdgeEventHandler), false);
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	  break;
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	case ERASER:
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	  actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::eraserEventHandler), false);
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	  break;
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	case EDGE_MAP_EDIT:
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	  grab_focus();
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	  actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::edgeMapEditEventHandler), false);
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	  break;
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	case NODE_MAP_EDIT:
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	  actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::nodeMapEditEventHandler), false);
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	  break;
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	default:
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	  break;
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	}
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    }
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}
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int GraphDisplayerCanvas::getActualTool()
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{
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  return actual_tool;
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}
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bool GraphDisplayerCanvas::moveEventHandler(GdkEvent* e)
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{
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  switch(e->type)
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  {
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    case GDK_BUTTON_PRESS:
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      //we mark the location of the event to be able to calculate parameters of dragging
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      window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
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      active_item=(get_item_at(clicked_x, clicked_y));
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      active_node=INVALID;
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      for (NodeIt i(g); i!=INVALID; ++i)
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	{
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	  if(nodesmap[i]==active_item)
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	    {
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	      active_node=i;
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	    }
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	}
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      switch(e->button.button)
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	{
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	case 3:      
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	  isbutton=3;
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	  break;
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	default:
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	  isbutton=1;
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	  break;
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	}
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      break;
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    case GDK_BUTTON_RELEASE:
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      isbutton=0;
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      active_item=NULL;
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      active_node=INVALID;
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      break;
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    case GDK_MOTION_NOTIFY:
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      //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
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      if(active_node!=INVALID)
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      {
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	//new coordinates will be the old values,
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	//because the item will be moved to the
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	//new coordinate therefore the new movement
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	//has to be calculated from here
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	double new_x, new_y;
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	window_to_world (e->motion.x, e->motion.y, new_x, new_y);
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        double dx=new_x-clicked_x;
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        double dy=new_y-clicked_y;
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	//repositioning node and its text
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        active_item->move(dx, dy);
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	nodetextmap[active_node]->move(dx, dy);
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        clicked_x=new_x;
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        clicked_y=new_y;
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	//all the edges connected to the moved point has to be redrawn
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        EdgeIt ei;
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        g.firstOut(ei,active_node);
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        for(;ei!=INVALID;g.nextOut(ei))
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        {
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            Gnome::Canvas::Points coos;
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            double x1, x2, y1, y2;
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            nodesmap[g.source(ei)]->get_bounds(x1, y1, x2, y2);
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            coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
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            nodesmap[g.target(ei)]->get_bounds(x1, y1, x2, y2);
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            coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
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	    if(isbutton==3)
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	      {
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		edgesmap[ei]->setPoints(coos);
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	      }
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	    else
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	      {
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		edgesmap[ei]->setPoints(coos,true);
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	      }
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	    //reposition of edgetext
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	    xy<double> text_pos=edgesmap[ei]->getArrowPos();
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	    text_pos+=(xy<double>(10,10));
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	    edgetextmap[ei]->property_x().set_value(text_pos.x);
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	    edgetextmap[ei]->property_y().set_value(text_pos.y);
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        }
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        g.firstIn(ei,active_node);
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        for(;ei!=INVALID;g.nextIn(ei))
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        {
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            Gnome::Canvas::Points coos;
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            double x1, x2, y1, y2;
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            nodesmap[g.source(ei)]->get_bounds(x1, y1, x2, y2);
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            coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
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            nodesmap[g.target(ei)]->get_bounds(x1, y1, x2, y2);
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            coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
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	    if(isbutton==3)
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	      {
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		edgesmap[ei]->setPoints(coos);
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	      }
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	    else
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	      {
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		edgesmap[ei]->setPoints(coos,true);
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	      }
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	    xy<double> text_pos=edgesmap[ei]->getArrowPos();
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	    text_pos+=(xy<double>(10,10));
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	    edgetextmap[ei]->property_x().set_value(text_pos.x);
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	    edgetextmap[ei]->property_y().set_value(text_pos.y);
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        }
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      }
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    default: break;
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  }
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  return false;
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}
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bool GraphDisplayerCanvas::createNodeEventHandler(GdkEvent* e)
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{
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  switch(e->type)
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    {
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      //draw the new node in red at the clicked place
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    case GDK_2BUTTON_PRESS:
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      std::cout << "double click" << std::endl;
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      break;
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    case GDK_BUTTON_PRESS:
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      isbutton=1;
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      active_node=NodeIt(g,g.addNode());
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      //initiating values corresponding to new node in maps
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      window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
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      nodesmap[active_node]=new Gnome::Canvas::Ellipse(displayed_graph, clicked_x-20, clicked_y-20, clicked_x+20, clicked_y+20);
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      active_item=(Gnome::Canvas::Item *)(nodesmap[active_node]);
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      *(nodesmap[active_node]) << Gnome::Canvas::Properties::fill_color("red");
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      *(nodesmap[active_node]) << Gnome::Canvas::Properties::outline_color("black");
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      (nodesmap[active_node])->show();
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      nodetextmap[active_node]=new Gnome::Canvas::Text(displayed_graph, clicked_x+node_property_defaults[N_RADIUS]+5, clicked_y+node_property_defaults[N_RADIUS]+5, "");
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      nodetextmap[active_node]->property_fill_color().set_value("darkblue");
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      mapwin->updateNode(active_node);
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      break;
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      //move the new node
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    case GDK_MOTION_NOTIFY:
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      {
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	GdkEvent * generated=new GdkEvent();
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	generated->motion.x=e->motion.x;
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	generated->motion.y=e->motion.y;
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	generated->type=GDK_MOTION_NOTIFY;
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	moveEventHandler(generated);      
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	break;
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      }
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      //finalize the new node
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    case GDK_BUTTON_RELEASE:
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      window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
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      active_item->lower_to_bottom();
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      target_item=NULL;
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      target_item=get_item_at(clicked_x, clicked_y);
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   263
      active_item->raise_to_top();
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      isbutton=0;
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      if(target_item==active_item)
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	{
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	  //Its appropriate color is given by update.
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	  *active_item << Gnome::Canvas::Properties::fill_color("blue");
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	}
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      else
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	{
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	  //In this case the given color has to be overwritten, because the noe covers an other item.
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	  *active_item << Gnome::Canvas::Properties::fill_color("lightblue");
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	}
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      target_item=NULL;
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      active_item=NULL;
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      active_node=INVALID;
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      break;
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    default:
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      break;
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    }
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  return false;
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}
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bool GraphDisplayerCanvas::createEdgeEventHandler(GdkEvent* e)
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{
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  switch(e->type)
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    {
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    case GDK_BUTTON_PRESS:
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      //in edge creation right button has special meaning
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      if(e->button.button!=3)
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	{
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	  //there is not yet selected node
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	  if(active_node==INVALID)
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	    {
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	      //we mark the location of the event to be able to calculate parameters of dragging
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   299
	      window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
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   300
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   301
	      active_item=(get_item_at(clicked_x, clicked_y));
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   302
	      active_node=INVALID;
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   303
	      for (NodeIt i(g); i!=INVALID; ++i)
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   304
		{
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   305
		  if(nodesmap[i]==active_item)
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   306
		    {
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   307
		      active_node=i;
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   308
		    }
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   309
		}
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	      //the clicked item is really a node
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   311
	      if(active_node!=INVALID)
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   312
		{
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   313
		  *(nodesmap[active_node]) << Gnome::Canvas::Properties::fill_color("red");
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   314
		  isbutton=1;
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   315
		}
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   316
	      //clicked item was not a node. It could be e.g. edge.
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	      else
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   318
		{
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   319
		  active_item=NULL;
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   320
		}
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   321
	    }
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   322
	  //we only have to do sg. if the mouse button
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   323
	  // is pressed already once AND the click was
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   324
	  // on a node that was found in the set of 
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   325
	  //nodes, and now we only search for the second 
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   326
	  //node
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	  else
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   328
	    {
hegyi@1525
   329
	      window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
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   330
	      target_item=(get_item_at(clicked_x, clicked_y));
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   331
	      Graph::NodeIt target_node=INVALID;
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   332
	      for (NodeIt i(g); i!=INVALID; ++i)
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   333
		{
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   334
		  if(nodesmap[i]==target_item)
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   335
		    {
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   336
		      target_node=i;
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   337
		    }
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   338
		}
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   339
	      //the clicked item is a node, the edge can be drawn
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   340
	      if(target_node!=INVALID)
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   341
		{
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   342
		  if(target_node!=active_node)		
hegyi@1512
   343
		    {
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   344
		      *(nodesmap[target_node]) << Gnome::Canvas::Properties::fill_color("red");
hegyi@1510
   345
hegyi@1512
   346
		      //creating new edge
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   347
		      active_edge=EdgeIt(g,g.addEdge(active_node, target_node));
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   348
hegyi@1512
   349
		      //initiating values corresponding to new edge in maps
hegyi@1524
   350
		      mapstorage.initMapsForEdge(active_edge);
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   351
	  
hegyi@1512
   352
		      //calculating coordinates of new edge
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   353
		      Gnome::Canvas::Points coos;
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   354
		      double x1, x2, y1, y2;
hegyi@1510
   355
	  
hegyi@1512
   356
		      active_item->get_bounds(x1, y1, x2, y2);
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   357
		      coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
hegyi@1510
   358
hegyi@1512
   359
		      target_item->get_bounds(x1, y1, x2, y2);
hegyi@1512
   360
		      coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
hegyi@1510
   361
hegyi@1512
   362
		      //drawing new edge
hegyi@1512
   363
		      edgesmap[active_edge]=new BrokenEdge(displayed_graph, coos, *this);
hegyi@1512
   364
		      *(edgesmap[active_edge]) << Gnome::Canvas::Properties::fill_color("green");
hegyi@1512
   365
		      edgesmap[active_edge]->property_width_pixels().set_value(10);
hegyi@1510
   366
hegyi@1512
   367
		      //redraw nodes to blank terminations of the new edge
hegyi@1512
   368
		      target_item->raise_to_top();
hegyi@1512
   369
		      active_item->raise_to_top();
hegyi@1510
   370
hegyi@1512
   371
		      //initializing edge-text as well, to empty string
hegyi@1524
   372
		      xy<double> text_pos=edgesmap[active_edge]->getArrowPos();
hegyi@1512
   373
		      text_pos+=(xy<double>(10,10));
hegyi@1510
   374
hegyi@1512
   375
		      edgetextmap[active_edge]=new Gnome::Canvas::Text(displayed_graph, text_pos.x, text_pos.y, "");
hegyi@1512
   376
		      edgetextmap[active_edge]->property_fill_color().set_value("darkgreen");
hegyi@1512
   377
hegyi@1512
   378
		      //updating its properties
hegyi@1524
   379
		      mapwin->updateEdge(active_edge);
hegyi@1512
   380
		    }
hegyi@1512
   381
		  else
hegyi@1512
   382
		    {
hegyi@1512
   383
		      target_node=INVALID;
hegyi@1512
   384
		      std::cout << "Loop edge is not yet implemented!" << std::endl;
hegyi@1512
   385
		    }
hegyi@1510
   386
		}
hegyi@1510
   387
	      //clicked item was not a node. it could be an e.g. edge. we do not deal with it furthermore.
hegyi@1510
   388
	      else
hegyi@1510
   389
		{
hegyi@1510
   390
		  target_item=NULL;
hegyi@1510
   391
		}
hegyi@1510
   392
	    }
hegyi@1510
   393
	}
hegyi@1510
   394
      break;
hegyi@1510
   395
    case GDK_BUTTON_RELEASE:
hegyi@1510
   396
      isbutton=0;
hegyi@1510
   397
      //we clear settings in two cases
hegyi@1510
   398
      //1: the edge is ready (target_item has valid value)
hegyi@1510
   399
      //2: the edge creation is cancelled with right button
hegyi@1510
   400
      if((target_item)||(e->button.button==3))
hegyi@1510
   401
	{
hegyi@1510
   402
	  if(active_item)
hegyi@1510
   403
	    {
hegyi@1510
   404
	      *active_item << Gnome::Canvas::Properties::fill_color("blue");
hegyi@1510
   405
	      active_item=NULL;
hegyi@1510
   406
	    }
hegyi@1510
   407
	  if(target_item)
hegyi@1510
   408
	    {
hegyi@1510
   409
	      *target_item << Gnome::Canvas::Properties::fill_color("blue");
hegyi@1510
   410
	      target_item=NULL;
hegyi@1510
   411
	    }
hegyi@1510
   412
	  active_node=INVALID;
hegyi@1510
   413
	  active_edge=INVALID;
hegyi@1510
   414
	}
hegyi@1510
   415
      break;
hegyi@1510
   416
    default:
hegyi@1510
   417
      break;
hegyi@1510
   418
    }
hegyi@1510
   419
  return false;
hegyi@1510
   420
}
hegyi@1510
   421
hegyi@1524
   422
bool GraphDisplayerCanvas::eraserEventHandler(GdkEvent* e)
hegyi@1510
   423
{
hegyi@1510
   424
  switch(e->type)
hegyi@1510
   425
    {
hegyi@1510
   426
    case GDK_BUTTON_PRESS:
hegyi@1525
   427
      window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
hegyi@1525
   428
      active_item=(get_item_at(clicked_x, clicked_y));
hegyi@1510
   429
      active_node=INVALID;
hegyi@1510
   430
      active_edge=INVALID;
hegyi@1510
   431
      for (NodeIt i(g); i!=INVALID; ++i)
hegyi@1510
   432
	{
hegyi@1510
   433
	  if(nodesmap[i]==active_item)
hegyi@1510
   434
	    {
hegyi@1510
   435
	      active_node=i;
hegyi@1510
   436
	    }
hegyi@1510
   437
	}
hegyi@1510
   438
      if(active_node==INVALID)
hegyi@1510
   439
	{
hegyi@1510
   440
	  for (EdgeIt i(g); i!=INVALID; ++i)
hegyi@1510
   441
	    {
hegyi@1510
   442
	      if(edgesmap[i]==active_item)
hegyi@1510
   443
		{
hegyi@1510
   444
		  active_edge=i;
hegyi@1510
   445
		}
hegyi@1510
   446
	    }
hegyi@1510
   447
	}
hegyi@1525
   448
      if(active_item)
hegyi@1525
   449
	{
hegyi@1525
   450
	  *active_item << Gnome::Canvas::Properties::fill_color("red");
hegyi@1525
   451
	}
hegyi@1510
   452
      break;
hegyi@1510
   453
hegyi@1510
   454
    case GDK_BUTTON_RELEASE:
hegyi@1525
   455
      window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
hegyi@1525
   456
      if(active_item)
hegyi@1510
   457
	{
hegyi@1525
   458
	  if( active_item == ( get_item_at (clicked_x, clicked_y) ) )
hegyi@1510
   459
	    {
hegyi@1525
   460
	      if(active_node!=INVALID)
hegyi@1525
   461
		{
hegyi@1510
   462
hegyi@1525
   463
		  //collecting edges to delete
hegyi@1525
   464
		  EdgeIt e;
hegyi@1525
   465
		  std::set<Graph::Edge> edges_to_delete;
hegyi@1510
   466
hegyi@1525
   467
		  g.firstOut(e,active_node);
hegyi@1525
   468
		  for(;e!=INVALID;g.nextOut(e))
hegyi@1525
   469
		    {
hegyi@1525
   470
		      edges_to_delete.insert(e);
hegyi@1525
   471
		    }
hegyi@1525
   472
hegyi@1525
   473
		  g.firstIn(e,active_node);
hegyi@1525
   474
		  for(;e!=INVALID;g.nextIn(e))
hegyi@1525
   475
		    {
hegyi@1525
   476
		      edges_to_delete.insert(e);
hegyi@1525
   477
		    }
hegyi@1525
   478
hegyi@1525
   479
		  //deleting collected edges
hegyi@1525
   480
		  for(std::set<Graph::Edge>::iterator edge_set_it=edges_to_delete.begin();edge_set_it!=edges_to_delete.end();edge_set_it++)
hegyi@1525
   481
		    {
hegyi@1525
   482
		      deleteItem(*edge_set_it);
hegyi@1525
   483
		    }
hegyi@1525
   484
		  deleteItem(active_node);
hegyi@1525
   485
		}
hegyi@1525
   486
	      //a simple edge was chosen
hegyi@1525
   487
	      else
hegyi@1510
   488
		{
hegyi@1525
   489
		  deleteItem(active_edge);
hegyi@1510
   490
		}
hegyi@1510
   491
	    }
hegyi@1525
   492
	  //pointer was moved, deletion is cancelled
hegyi@1510
   493
	  else
hegyi@1510
   494
	    {
hegyi@1525
   495
	      if(active_node!=INVALID)
hegyi@1525
   496
		{
hegyi@1525
   497
		  *active_item << Gnome::Canvas::Properties::fill_color("blue");
hegyi@1525
   498
		}
hegyi@1525
   499
	      else
hegyi@1525
   500
		{
hegyi@1525
   501
		  *active_item << Gnome::Canvas::Properties::fill_color("green");
hegyi@1525
   502
		}
hegyi@1510
   503
	    }
hegyi@1510
   504
	}
hegyi@1510
   505
      //reseting datas
hegyi@1510
   506
      active_item=NULL;
hegyi@1510
   507
      active_edge=INVALID;
hegyi@1510
   508
      active_node=INVALID;
hegyi@1510
   509
      break;
hegyi@1510
   510
hegyi@1510
   511
    case GDK_MOTION_NOTIFY:
hegyi@1510
   512
      break;
hegyi@1510
   513
hegyi@1510
   514
    default:
hegyi@1510
   515
      break;
hegyi@1510
   516
    }
hegyi@1525
   517
  return false;
hegyi@1510
   518
}
hegyi@1510
   519
hegyi@1550
   520
bool GraphDisplayerCanvas::edgeMapEditEventHandler(GdkEvent* e)
hegyi@1550
   521
{
hegyi@1550
   522
  switch(e->type)
hegyi@1550
   523
    {
hegyi@1562
   524
    case GDK_KEY_PRESS:
hegyi@1562
   525
      {
hegyi@1579
   526
	nodeMapEditEventHandler(e);
hegyi@1562
   527
	break;
hegyi@1562
   528
      }
hegyi@1550
   529
    case GDK_BUTTON_PRESS:
hegyi@1562
   530
      {
hegyi@1562
   531
	window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
hegyi@1562
   532
	active_item=(get_item_at(clicked_x, clicked_y));
hegyi@1562
   533
	Graph::EdgeIt clicked_edge=INVALID;
hegyi@1562
   534
	for (EdgeIt i(g); i!=INVALID; ++i)
hegyi@1562
   535
	  {
hegyi@1562
   536
	    if(edgesmap[i]==active_item)
hegyi@1562
   537
	      {
hegyi@1562
   538
		clicked_edge=i;
hegyi@1562
   539
	      }
hegyi@1562
   540
	  }
hegyi@1562
   541
	if(clicked_edge!=INVALID)
hegyi@1562
   542
	  {
hegyi@1562
   543
	    if(edgetextmap[clicked_edge]->property_text().get_value()!="")
hegyi@1562
   544
	      {
hegyi@1562
   545
		active_edge=clicked_edge;
hegyi@1562
   546
		if(canvasentrywidget)
hegyi@1562
   547
		  {
hegyi@1562
   548
		    delete(canvasentrywidget);
hegyi@1562
   549
		  }
hegyi@1562
   550
		entrywidget.show();
hegyi@1562
   551
		entrywidget.set_text(edgetextmap[active_edge]->property_text().get_value());
hegyi@1562
   552
		xy<double> entry_coos;
hegyi@1562
   553
		entry_coos.x=(edgetextmap[active_edge])->property_x().get_value();
hegyi@1562
   554
		entry_coos.x-=edgetextmap[active_edge]->property_text_width().get_value()/2;
hegyi@1562
   555
		entry_coos.y=(edgetextmap[active_edge])->property_y().get_value();
hegyi@1562
   556
		entry_coos.y-=edgetextmap[active_edge]->property_text_height().get_value()*1.5/2;
hegyi@1562
   557
		canvasentrywidget=new Gnome::Canvas::Widget(displayed_graph, entry_coos.x, entry_coos.y, entrywidget);
hegyi@1562
   558
		canvasentrywidget->property_width().set_value(edgetextmap[active_edge]->property_text_width().get_value()*1.5);
hegyi@1562
   559
		canvasentrywidget->property_height().set_value(edgetextmap[active_edge]->property_text_height().get_value()*1.5);
hegyi@1562
   560
	      }
hegyi@1562
   561
	  }
hegyi@1562
   562
	else
hegyi@1562
   563
	  {
hegyi@1579
   564
	    GdkEvent * generated=new GdkEvent();
hegyi@1579
   565
	    generated->type=GDK_KEY_PRESS;
hegyi@1579
   566
	    ((GdkEventKey*)generated)->keyval=GDK_KP_Enter;
hegyi@1579
   567
	    entryWidgetChangeHandler(generated);
hegyi@1562
   568
	  }
hegyi@1562
   569
	break;
hegyi@1562
   570
      }
hegyi@1550
   571
    default:
hegyi@1550
   572
      break;
hegyi@1550
   573
    }
hegyi@1550
   574
  return false;  
hegyi@1550
   575
}
hegyi@1550
   576
hegyi@1550
   577
bool GraphDisplayerCanvas::nodeMapEditEventHandler(GdkEvent* e)
hegyi@1550
   578
{
hegyi@1579
   579
  switch(e->type)
hegyi@1579
   580
    {
hegyi@1579
   581
    case GDK_KEY_PRESS:
hegyi@1579
   582
      {
hegyi@1579
   583
	switch(((GdkEventKey*)e)->keyval)
hegyi@1579
   584
	  {
hegyi@1579
   585
	  case GDK_Escape:
hegyi@1579
   586
	    entrywidget.hide();
hegyi@1579
   587
	    break;
hegyi@1579
   588
	  case GDK_Return:
hegyi@1579
   589
	  case GDK_KP_Enter:
hegyi@1579
   590
	    entrywidget.hide();
hegyi@1579
   591
	    break;
hegyi@1579
   592
	  default:
hegyi@1579
   593
	    break;
hegyi@1579
   594
	  }
hegyi@1579
   595
  
hegyi@1579
   596
	break;
hegyi@1579
   597
      }
hegyi@1579
   598
    case GDK_BUTTON_PRESS:
hegyi@1579
   599
      {
hegyi@1579
   600
	window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
hegyi@1579
   601
	active_item=(get_item_at(clicked_x, clicked_y));
hegyi@1579
   602
	Graph::NodeIt clicked_node=INVALID;
hegyi@1579
   603
	for (NodeIt i(g); i!=INVALID; ++i)
hegyi@1579
   604
	  {
hegyi@1579
   605
	    if(nodesmap[i]==active_item)
hegyi@1579
   606
	      {
hegyi@1579
   607
		clicked_node=i;
hegyi@1579
   608
	      }
hegyi@1579
   609
	  }
hegyi@1579
   610
	if(clicked_node!=INVALID)
hegyi@1579
   611
	  {
hegyi@1579
   612
	    //If there is already edited edge, it has to be saved first
hegyi@1579
   613
	    if(entrywidget.is_visible())
hegyi@1579
   614
	      {
hegyi@1579
   615
		GdkEvent * generated=new GdkEvent();
hegyi@1579
   616
		generated->type=GDK_KEY_PRESS;
hegyi@1579
   617
		((GdkEventKey*)generated)->keyval=GDK_KP_Enter;
hegyi@1579
   618
		entryWidgetChangeHandler(generated);
hegyi@1579
   619
	      }
hegyi@1579
   620
	    //If the previous value could be saved, we can go further, otherwise not
hegyi@1579
   621
	    if(!entrywidget.is_visible())
hegyi@1579
   622
	      {
hegyi@1579
   623
hegyi@1579
   624
		if(nodetextmap[clicked_node]->property_text().get_value()!="")
hegyi@1579
   625
		  {
hegyi@1579
   626
		    active_node=clicked_node;
hegyi@1579
   627
		    if(canvasentrywidget)
hegyi@1579
   628
		      {
hegyi@1579
   629
			delete(canvasentrywidget);
hegyi@1579
   630
		      }
hegyi@1579
   631
		    entrywidget.show();
hegyi@1579
   632
		    entrywidget.set_text(nodetextmap[active_node]->property_text().get_value());
hegyi@1579
   633
		    xy<double> entry_coos;
hegyi@1579
   634
		    entry_coos.x=(nodetextmap[active_node])->property_x().get_value();
hegyi@1579
   635
		    entry_coos.x-=nodetextmap[active_node]->property_text_width().get_value()/2;
hegyi@1579
   636
		    entry_coos.y=(nodetextmap[active_node])->property_y().get_value();
hegyi@1579
   637
		    entry_coos.y-=nodetextmap[active_node]->property_text_height().get_value()*1.5/2;
hegyi@1579
   638
		    canvasentrywidget=new Gnome::Canvas::Widget(displayed_graph, entry_coos.x, entry_coos.y, entrywidget);
hegyi@1579
   639
		    canvasentrywidget->property_width().set_value(nodetextmap[active_node]->property_text_width().get_value()*1.5);
hegyi@1579
   640
		    canvasentrywidget->property_height().set_value(nodetextmap[active_node]->property_text_height().get_value()*1.5);
hegyi@1579
   641
		  }
hegyi@1579
   642
	      }
hegyi@1579
   643
	  }
hegyi@1579
   644
	else
hegyi@1579
   645
	  {
hegyi@1579
   646
	    GdkEvent * generated=new GdkEvent();
hegyi@1579
   647
	    generated->type=GDK_KEY_PRESS;
hegyi@1579
   648
	    ((GdkEventKey*)generated)->keyval=GDK_KP_Enter;
hegyi@1579
   649
	    entryWidgetChangeHandler(generated);
hegyi@1579
   650
	  }
hegyi@1579
   651
	break;
hegyi@1579
   652
      }
hegyi@1579
   653
    default:
hegyi@1579
   654
      break;
hegyi@1579
   655
    }
hegyi@1579
   656
  return false;  
hegyi@1550
   657
}
hegyi@1550
   658
hegyi@1562
   659
bool GraphDisplayerCanvas::entryWidgetChangeHandler(GdkEvent* e)
hegyi@1562
   660
{
hegyi@1579
   661
  if(entrywidget.is_visible())
hegyi@1579
   662
    {
hegyi@1579
   663
      if(e->type==GDK_KEY_PRESS)
hegyi@1579
   664
	{
hegyi@1579
   665
	  switch(((GdkEventKey*)e)->keyval)
hegyi@1579
   666
	    {
hegyi@1579
   667
	    case GDK_Escape:
hegyi@1579
   668
	      entrywidget.hide();
hegyi@1579
   669
	      break;
hegyi@1579
   670
	    case GDK_KP_Enter:
hegyi@1579
   671
	    case GDK_Return:
hegyi@1579
   672
	      {
hegyi@1579
   673
		Glib::ustring mapvalue = entrywidget.get_text();
hegyi@1579
   674
hegyi@1579
   675
		double double_map_fract_value=0;
hegyi@1579
   676
		double double_map_value=0;
hegyi@1579
   677
		int offset=0;
hegyi@1579
   678
		int found_letter=0;
hegyi@1579
   679
		//converting text to double
hegyi@1579
   680
		for(int i=0;i<(int)(mapvalue.length());i++)
hegyi@1579
   681
		  {
hegyi@1579
   682
		    if(((mapvalue[i]<='9')&&(mapvalue[i]>='0'))||(mapvalue[i]=='.'))
hegyi@1579
   683
		      {
hegyi@1579
   684
			if(mapvalue[i]=='.')
hegyi@1579
   685
			  {
hegyi@1579
   686
			    //for calculating non-integer part of double we step backward from the end
hegyi@1579
   687
			    //after each step the number will be divided by ten, and the new value will be added
hegyi@1579
   688
			    //to step backward from the end until the point the actual character of the string is the following:
hegyi@1579
   689
			    // mapvalue.length()-(i-position_of_point)
hegyi@1579
   690
			    //if i was the number of the first character after the decimal point the selected character will be the last
hegyi@1579
   691
			    //if i was the number of the last character, the selected character will be the first after the decimal point
hegyi@1579
   692
			    offset=mapvalue.length()+i;
hegyi@1579
   693
			  }
hegyi@1579
   694
			else
hegyi@1579
   695
			  {
hegyi@1579
   696
			    if(!offset)
hegyi@1579
   697
			      {
hegyi@1579
   698
				double_map_value=10*double_map_value+mapvalue[i]-'0';
hegyi@1579
   699
			      }
hegyi@1579
   700
			    else
hegyi@1579
   701
			      {
hegyi@1579
   702
				double_map_fract_value=double_map_fract_value/10+(double)(mapvalue[offset-i]-'0')/10;
hegyi@1579
   703
			      }
hegyi@1579
   704
			  }
hegyi@1579
   705
		      }
hegyi@1579
   706
		    else
hegyi@1579
   707
		      {
hegyi@1579
   708
			found_letter++;
hegyi@1579
   709
			continue;
hegyi@1579
   710
		      }
hegyi@1579
   711
		  }
hegyi@1579
   712
hegyi@1579
   713
		if(!found_letter)
hegyi@1579
   714
		  {
hegyi@1579
   715
		    switch(actual_tool)
hegyi@1579
   716
		      {
hegyi@1579
   717
		      case EDGE_MAP_EDIT:
hegyi@1579
   718
			edgetextmap[active_edge]->property_text().set_value(mapvalue);
hegyi@1579
   719
			(*(mapstorage.edgemap_storage)[edgemap_to_edit])[active_edge]=double_map_value+double_map_fract_value;
hegyi@1579
   720
			break;
hegyi@1579
   721
		      case NODE_MAP_EDIT:
hegyi@1579
   722
			nodetextmap[active_node]->property_text().set_value(mapvalue);
hegyi@1579
   723
			(*(mapstorage.nodemap_storage)[nodemap_to_edit])[active_node]=double_map_value+double_map_fract_value;
hegyi@1579
   724
			break;
hegyi@1579
   725
		      default:
hegyi@1579
   726
			break;
hegyi@1579
   727
		      }
hegyi@1579
   728
		    entrywidget.hide();
hegyi@1579
   729
		  }
hegyi@1579
   730
		else
hegyi@1579
   731
		  {
hegyi@1579
   732
		    std::cout << "ERROR: only handling of double values is implemented yet!" << std::endl;
hegyi@1579
   733
		  }
hegyi@1579
   734
hegyi@1579
   735
		break;
hegyi@1579
   736
	      }
hegyi@1579
   737
	    default:
hegyi@1579
   738
	      break;
hegyi@1579
   739
	    }
hegyi@1579
   740
	}
hegyi@1579
   741
    }
hegyi@1562
   742
  return false;
hegyi@1562
   743
}
hegyi@1562
   744
hegyi@1524
   745
void GraphDisplayerCanvas::deleteItem(NodeIt node_to_delete)
hegyi@1510
   746
{
hegyi@1512
   747
  delete(nodetextmap[node_to_delete]);
hegyi@1510
   748
  delete(nodesmap[node_to_delete]);
hegyi@1510
   749
  g.erase(node_to_delete);
hegyi@1510
   750
}
hegyi@1510
   751
hegyi@1524
   752
void GraphDisplayerCanvas::deleteItem(EdgeIt edge_to_delete)
hegyi@1510
   753
{
hegyi@1512
   754
  delete(edgetextmap[edge_to_delete]);
hegyi@1510
   755
  delete(edgesmap[edge_to_delete]);
hegyi@1510
   756
  g.erase(edge_to_delete);
hegyi@1510
   757
}
hegyi@1510
   758
hegyi@1524
   759
void GraphDisplayerCanvas::deleteItem(Graph::Edge edge_to_delete)
hegyi@1510
   760
{
hegyi@1512
   761
  delete(edgetextmap[edge_to_delete]);
hegyi@1510
   762
  delete(edgesmap[edge_to_delete]);
hegyi@1510
   763
  g.erase(edge_to_delete);
hegyi@1510
   764
}
hegyi@1510
   765
hegyi@1524
   766
void GraphDisplayerCanvas::textReposition(xy<double> new_place)
hegyi@1510
   767
{
hegyi@1510
   768
  new_place+=(xy<double>(10,10));
hegyi@1579
   769
  edgetextmap[forming_edge]->property_x().set_value(new_place.x);
hegyi@1579
   770
  edgetextmap[forming_edge]->property_y().set_value(new_place.y);
hegyi@1510
   771
}
hegyi@1510
   772
hegyi@1524
   773
void GraphDisplayerCanvas::toggleEdgeActivity(BrokenEdge* active_bre, bool on)
hegyi@1510
   774
{
hegyi@1510
   775
  if(on)
hegyi@1510
   776
    {
hegyi@1579
   777
      if(forming_edge!=INVALID)
hegyi@1510
   778
	{
hegyi@1510
   779
	  std::cout << "ERROR!!!! Valid edge found!" << std::endl;
hegyi@1510
   780
	}
hegyi@1510
   781
      else
hegyi@1510
   782
	{
hegyi@1510
   783
	  for (EdgeIt i(g); i!=INVALID; ++i)
hegyi@1510
   784
	    {
hegyi@1510
   785
	      if(edgesmap[i]==active_bre)
hegyi@1510
   786
		{
hegyi@1579
   787
		  forming_edge=i;
hegyi@1510
   788
		}
hegyi@1510
   789
	    }
hegyi@1510
   790
	}
hegyi@1510
   791
    }
hegyi@1510
   792
  else
hegyi@1510
   793
    {
hegyi@1579
   794
      if(forming_edge!=INVALID)
hegyi@1510
   795
	{
hegyi@1579
   796
	  forming_edge=INVALID;
hegyi@1510
   797
	}
hegyi@1510
   798
      else
hegyi@1510
   799
	{
hegyi@1510
   800
	  std::cout << "ERROR!!!! Invalid edge found!" << std::endl;
hegyi@1510
   801
	}
hegyi@1510
   802
    }
hegyi@1510
   803
hegyi@1510
   804
}
hegyi@1550
   805
hegyi@1585
   806
void GraphDisplayerCanvas::addNewEdgeMap()
hegyi@1585
   807
{
hegyi@1586
   808
  Graph::EdgeMap<double> * emptr=new Graph::EdgeMap<double> (g);
hegyi@1586
   809
  mapstorage.addEdgeMap("NewEdgeMap",emptr);
hegyi@1586
   810
  mapwin->registerNewEdgeMap("NewEdgeMap");
hegyi@1585
   811
  std::cout << "Add New EdgeMap is not yet implemented." << std::endl;
hegyi@1585
   812
}
hegyi@1585
   813
hegyi@1585
   814
void GraphDisplayerCanvas::addNewNodeMap()
hegyi@1585
   815
{
hegyi@1585
   816
  std::cout << "Add New NodeMap is not yet implemented." << std::endl;
hegyi@1585
   817
}
hegyi@1585
   818