Changeset 1510:cde847387b5a in lemon-0.x

Timestamp:

06/24/05 09:58:18 (20 years ago)

Author:

Hegyi Péter

Branch:

default

Phase:

public

Convert:

svn:c9d7d8f5-90d6-0310-b91f-818b3a526b0e/lemon/trunk@1993

Message:

File graph_displayer is split in functional parts.

Location:

gui

Files:

• Makefile.am (modified) (1 diff)
• graph_displayer_canvas-edge.cc (added)
• graph_displayer_canvas-event.cc (added)
• graph_displayer_canvas-zoom.cc (added)
• graph_displayer_canvas.cc (modified) (1 diff)

gui/Makefile.am

@@ -7 +7 @@
         all_include.h \
         graph_displayer_canvas.cc \
+        graph_displayer_canvas-edge.cc \
+        graph_displayer_canvas-event.cc \
+        graph_displayer_canvas-zoom.cc \
         graph_displayer_canvas.h \
         graph-displayer.cc \

gui/graph_displayer_canvas.cc

@@ -92 +92 @@
   writer.run();
 }
-
-int GraphDisplayerCanvas::changeLineWidth (std::string mapname)
-{
-  for (EdgeIt i(g); i!=INVALID; ++i)
-    {
-      int w=(int)(*(mapstorage.edgemap_storage)[mapname])[i];
-      if(w>=0)
-        {
-          edgesmap[i]->property_width_pixels().set_value(w);
-        }
-    }
-  return 0;
-};
-
-int GraphDisplayerCanvas::changeColor (std::string mapname)
-{  
-
-  //function maps the range of the maximum and
-  //the minimum of the nodemap to the range of
-  //green in RGB
-
-  for (EdgeIt i(g); i!=INVALID; ++i)
-  {
-    double w=(*(mapstorage.edgemap_storage)[mapname])[i];
-    double max=mapstorage.maxOfEdgeMap(mapname);
-    double min=mapstorage.minOfEdgeMap(mapname);
-      
-    //std::cout<<w<<" "<<max<<" "<<min<<" "<<100*(w-min)/(max-min)<<std::endl;
-    Gdk::Color color;
-    if(max!=min)
-    {
-      color.set_rgb_p (0, 100*(w-min)/(max-min), 0);
-    }
-    else
-    {
-      color.set_rgb_p (0, 100, 0);
-    }
-
-    edgesmap[i]->property_fill_color_gdk().set_value(color);
-  }
-  return 0;
-};
-
-int GraphDisplayerCanvas::changeText (std::string mapname)
-{
-
-  //the number in the map will be written on the edge
-  //EXCEPT when the name of the map is Text, because
-  //in that case empty string will be written, because
-  //that is the deleter map
-  //\todo isn't it a bit woodcutter?
-
-  for (EdgeIt i(g); i!=INVALID; ++i)
-    {
-      if(mapname!="Text")
-        {
-          double number=(*(mapstorage.edgemap_storage)[mapname])[i];
-          int length=1;
-          //if number is smaller than one, length would be negative, or invalid
-          if(number>=1)
-            {
-              length=(int)(floor(log(number)/log(10)))+1;
-            }
-          int maxpos=(int)(pow(10,length-1));
-          int strl=length+1+RANGE;
-          char * str=new char[strl];
-          str[length]='.';
-          str[strl]='\0';
-      
-          for(int j=0;j<strl;j++)
-            {
-              if(j!=length)
-                {
-                  int digit=(int)(number/maxpos);
-                  str[j]=(digit+'0');
-                  number-=digit*maxpos;
-                  number*=10;
-                }
-            }
-      
-          edgetextmap[i]->property_text().set_value(str);
-        }
-      else
-        {
-          edgetextmap[i]->property_text().set_value("");
-        }
-    }
-  return 0;
-};
-
-//Deprecated
-bool GraphDisplayerCanvas::event_handler(GdkEvent* e, Node n)
-{
-  switch(e->type)
-  {
-    case GDK_BUTTON_PRESS:
-      //we mark the location of the event to be able to calculate parameters of dragging
-      clicked_x=e->button.x;
-      clicked_y=e->button.y;
-      active_item=(get_item_at(e->button.x, e->button.y));
-      isbutton=1;
-      break;
-    case GDK_BUTTON_RELEASE:
-      isbutton=0;
-      active_item=NULL;
-      updateScrollRegion();
-      break;
-    case GDK_MOTION_NOTIFY:
-      //we only have to do sg. if the mouse button is pressed
-      if(isbutton)
-      {
-        //new coordinates will be the old values,
-        //because the item will be moved to the
-        //new coordinate therefore the new movement
-        //has to be calculated from here
-
-        double dx=e->motion.x-clicked_x;
-        double dy=e->motion.y-clicked_y;
-        active_item->move(dx, dy);
-        clicked_x=e->motion.x;
-        clicked_y=e->motion.y;
-
-        //all the edges connected to the moved point has to be redrawn
-
-        EdgeIt e;
-        g.firstOut(e,n);
-        for(;e!=INVALID;g.nextOut(e))
-        {
-            Gnome::Canvas::Points coos;
-            double x1, x2, y1, y2;
-
-            nodesmap[g.source(e)]->get_bounds(x1, y1, x2, y2);
-            coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
-
-            nodesmap[g.target(e)]->get_bounds(x1, y1, x2, y2);
-            coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
-
-            edgesmap[e]->property_points().set_value(coos);
-
-            edgesmap[e]->get_bounds(x1, y1, x2, y2);
-
-            edgetextmap[e]->property_x().set_value((x1+x2)/2);
-            edgetextmap[e]->property_y().set_value((y1+y2)/2);
-        }
-
-        g.firstIn(e,n);
-        for(;e!=INVALID;g.nextIn(e))
-        {
-            Gnome::Canvas::Points coos;
-            double x1, x2, y1, y2;
-
-            nodesmap[g.source(e)]->get_bounds(x1, y1, x2, y2);
-            coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
-
-            nodesmap[g.target(e)]->get_bounds(x1, y1, x2, y2);
-            coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
-
-            edgesmap[e]->property_points().set_value(coos);
-
-            edgesmap[e]->get_bounds(x1, y1, x2, y2);
-
-            edgetextmap[e]->property_x().set_value((x1+x2)/2);
-            edgetextmap[e]->property_y().set_value((y1+y2)/2);
-        }
-      }
-    default: break;
-  }
-  return true;
-}
-
-bool GraphDisplayerCanvas::on_expose_event(GdkEventExpose *event)
-{
-  Gnome::Canvas::CanvasAA::on_expose_event(event);
-  //usleep(10000);
-  //rezoom();
-  return true;
-}
-
-void GraphDisplayerCanvas::zoomIn()
-{
-  set_pixels_per_unit(
-      (1.0 + (double) zoom_step / 100.0) * get_pixels_per_unit());
-}
-
-void GraphDisplayerCanvas::zoomOut()
-{
-  set_pixels_per_unit(
-      (1.0 - (double) zoom_step / 100.0) * get_pixels_per_unit());
-}
-
-void GraphDisplayerCanvas::zoomFit()
-{
-  // get the height and width of the canvas
-  Gtk::Allocation a = get_allocation();
-  int aw = a.get_width();
-  int ah = a.get_height();
-  // add some space
-  aw -= 5; if (aw < 0) aw = 0;
-  ah -= 5; if (ah < 0) ah = 0;
-
-  // get the bounding box of the graph
-  double wx1, wy1, wx2, wy2;
-  Gnome::Canvas::Item* pCanvasItem = root();
-  pCanvasItem->get_bounds(wx1, wy1, wx2, wy2);
-
-  // fit the graph to the window
-  double ppu1 = (double) aw / fabs(wx2 - wx1);
-  double ppu2 = (double) ah / fabs(wy2 - wy1);
-  set_pixels_per_unit((ppu1 < ppu2) ? ppu1 : ppu2);
-}
-
-void GraphDisplayerCanvas::zoom100()
-{
-  set_pixels_per_unit(1.0);
-}
-
-void GraphDisplayerCanvas::updateScrollRegion()
-{
-  double wx1, wy1, wx2, wy2;
-  Gnome::Canvas::Item* pCanvasItem = root();
-  pCanvasItem->get_bounds(wx1, wy1, wx2, wy2);
-  set_scroll_region(wx1, wy1, wx2, wy2);
-}
-
-void GraphDisplayerCanvas::changeEditorialTool(int newtool)
-{
-  actual_handler.disconnect();
-
-  if(actual_tool==CREATE_EDGE)
-    {
-        GdkEvent * generated=new GdkEvent();
-        generated->type=GDK_BUTTON_RELEASE;
-        generated->button.button=3;
-        create_edge_event_handler(generated);      
-    }
-
-  actual_tool=newtool;
-
-  switch(newtool)
-    {
-    case MOVE:
-      actual_handler=displayed_graph.signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::move_event_handler), false);
-      break;
-
-      //it has to assigned to canvas, because all the canvas has to be monitored, not only the elements of the already drawn group
-    case CREATE_NODE:
-      actual_handler=signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::create_node_event_handler), false);
-      break;
-
-    case CREATE_EDGE:
-      actual_handler=displayed_graph.signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::create_edge_event_handler), false);
-      break;
-
-    case ERASER:
-      actual_handler=displayed_graph.signal_event().connect(sigc::mem_fun(*this, &GraphDisplayerCanvas::eraser_event_handler), false);
-      break;
-
-    default:
-      break;
-    }
-}
-
-int GraphDisplayerCanvas::get_actual_tool()
-{
-  return actual_tool;
-}
-
-bool GraphDisplayerCanvas::move_event_handler(GdkEvent* e)
-{
-  switch(e->type)
-  {
-    case GDK_BUTTON_PRESS:
-      //we mark the location of the event to be able to calculate parameters of dragging
-      clicked_x=e->button.x;
-      clicked_y=e->button.y;
-      active_item=(get_item_at(e->button.x, e->button.y));
-      active_node=INVALID;
-      for (NodeIt i(g); i!=INVALID; ++i)
-        {
-          if(nodesmap[i]==active_item)
-            {
-              active_node=i;
-            }
-        }
-      switch(e->button.button)
-        {
-        case 3:      
-          isbutton=3;
-          break;
-        default:
-          isbutton=1;
-          break;
-        }
-      break;
-    case GDK_BUTTON_RELEASE:
-      isbutton=0;
-      active_item=NULL;
-      active_node=INVALID;
-      updateScrollRegion();
-      break;
-    case GDK_MOTION_NOTIFY:
-      //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
-      if(active_node!=INVALID)
-      {
-        //new coordinates will be the old values,
-        //because the item will be moved to the
-        //new coordinate therefore the new movement
-        //has to be calculated from here
-
-        double dx=e->motion.x-clicked_x;
-        double dy=e->motion.y-clicked_y;
-
-        active_item->move(dx, dy);
-
-        clicked_x=e->motion.x;
-        clicked_y=e->motion.y;
-
-        //all the edges connected to the moved point has to be redrawn
-        EdgeIt ei;
-
-        g.firstOut(ei,active_node);
-
-        for(;ei!=INVALID;g.nextOut(ei))
-        {
-            Gnome::Canvas::Points coos;
-            double x1, x2, y1, y2;
-
-            nodesmap[g.source(ei)]->get_bounds(x1, y1, x2, y2);
-            coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
-
-            nodesmap[g.target(ei)]->get_bounds(x1, y1, x2, y2);
-            coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
-
-            if(isbutton==3)
-              {
-                edgesmap[ei]->set_points(coos);
-              }
-            else
-              {
-                edgesmap[ei]->set_points(coos,true);
-              }
-
-            xy<double> text_pos=edgesmap[ei]->get_arrow_pos();
-            text_pos+=(xy<double>(10,10));
-            edgetextmap[ei]->property_x().set_value(text_pos.x);
-            edgetextmap[ei]->property_y().set_value(text_pos.y);
-        }
-
-        g.firstIn(ei,active_node);
-        for(;ei!=INVALID;g.nextIn(ei))
-        {
-            Gnome::Canvas::Points coos;
-            double x1, x2, y1, y2;
-
-            nodesmap[g.source(ei)]->get_bounds(x1, y1, x2, y2);
-            coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
-
-            nodesmap[g.target(ei)]->get_bounds(x1, y1, x2, y2);
-            coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
-
-            if(isbutton==3)
-              {
-                edgesmap[ei]->set_points(coos);
-              }
-            else
-              {
-                edgesmap[ei]->set_points(coos,true);
-              }
-
-            xy<double> text_pos=edgesmap[ei]->get_arrow_pos();
-            text_pos+=(xy<double>(10,10));
-            edgetextmap[ei]->property_x().set_value(text_pos.x);
-            edgetextmap[ei]->property_y().set_value(text_pos.y);
-        }
-      }
-    default: break;
-  }
-
-  return true;
-}
-
-bool GraphDisplayerCanvas::create_node_event_handler(GdkEvent* e)
-{
-  switch(e->type)
-    {
-
-      //draw the new node in red at the clicked place
-    case GDK_BUTTON_PRESS:
-      isbutton=1;
-
-      active_node=NodeIt(g,g.addNode());
-
-      //initiating values corresponding to new node in maps
-      
-
-      window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
-
-      nodesmap[active_node]=new Gnome::Canvas::Ellipse(displayed_graph, clicked_x-20, clicked_y-20, clicked_x+20, clicked_y+20);
-      active_item=(Gnome::Canvas::Item *)(nodesmap[active_node]);
-      *(nodesmap[active_node]) << Gnome::Canvas::Properties::fill_color("red");
-      *(nodesmap[active_node]) << Gnome::Canvas::Properties::outline_color("black");
-      (nodesmap[active_node])->show();
-      break;
-
-      //move the new node
-    case GDK_MOTION_NOTIFY:
-      {
-        double world_motion_x, world_motion_y;
-        GdkEvent * generated=new GdkEvent();
-        window_to_world (e->motion.x, e->motion.y, world_motion_x, world_motion_y);
-        generated->motion.x=world_motion_x;
-        generated->motion.y=world_motion_y;
-        generated->type=GDK_MOTION_NOTIFY;
-        move_event_handler(generated);      
-        break;
-      }
-
-      //finalize the new node
-    case GDK_BUTTON_RELEASE:
-      isbutton=0;
-      *active_item << Gnome::Canvas::Properties::fill_color("blue");
-      active_item=NULL;
-      active_node=INVALID;
-      updateScrollRegion();
-      break;
-    default:
-      break;
-    }
-  return false;
-}
-
-bool GraphDisplayerCanvas::create_edge_event_handler(GdkEvent* e)
-{
-  switch(e->type)
-    {
-    case GDK_BUTTON_PRESS:
-      //in edge creation right button has special meaning
-      if(e->button.button!=3)
-        {
-          //there is not yet selected node
-          if(active_node==INVALID)
-            {
-              //we mark the location of the event to be able to calculate parameters of dragging
-              clicked_x=e->button.x;
-              clicked_y=e->button.y;
-              active_item=(get_item_at(e->button.x, e->button.y));
-              active_node=INVALID;
-              for (NodeIt i(g); i!=INVALID; ++i)
-                {
-                  if(nodesmap[i]==active_item)
-                    {
-                      active_node=i;
-                    }
-                }
-              //the clicked item is really a node
-              if(active_node!=INVALID)
-                {
-                  *(nodesmap[active_node]) << Gnome::Canvas::Properties::fill_color("red");
-                  isbutton=1;
-                }
-              //clicked item was not a node. It could be e.g. edge.
-              else
-                {
-                  active_item=NULL;
-                }
-            }
-          //we only have to do sg. if the mouse button
-          // is pressed already once AND the click was
-          // on a node that was found in the set of 
-          //nodes, and now we only search for the second 
-          //node
-          else
-            {
-              target_item=(get_item_at(e->button.x, e->button.y));
-              Graph::NodeIt target_node=INVALID;
-              for (NodeIt i(g); i!=INVALID; ++i)
-                {
-                  if(nodesmap[i]==target_item)
-                    {
-                      target_node=i;
-                    }
-                }
-              //the clicked item is a node, the edge can be drawn
-              if(target_node!=INVALID)
-                {
-                  *(nodesmap[target_node]) << Gnome::Canvas::Properties::fill_color("red");
-
-                  //creating new edge
-                  active_edge=EdgeIt(g,g.addEdge(active_node, target_node));
-
-                  //initiating values corresponding to new edge in maps
-                  mapstorage.init_maps_for_edge(active_edge);
-          
-                  //calculating coordinates of new edge
-                  Gnome::Canvas::Points coos;
-                  double x1, x2, y1, y2;
-          
-                  active_item->get_bounds(x1, y1, x2, y2);
-                  coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
-
-                  target_item->get_bounds(x1, y1, x2, y2);
-                  coos.push_back(Gnome::Art::Point((x1+x2)/2,(y1+y2)/2));
-
-                  //drawing new edge
-                  edgesmap[active_edge]=new BrokenEdge(displayed_graph, coos, *this);
-                  *(edgesmap[active_edge]) << Gnome::Canvas::Properties::fill_color("green");
-                  edgesmap[active_edge]->property_width_pixels().set_value(10);
-
-                  //redraw nodes to blank terminations of the new edge
-                  target_item->raise_to_top();
-                  active_item->raise_to_top();
-
-                  //initializing edge-text as well, to empty string
-                  xy<double> text_pos=edgesmap[active_edge]->get_arrow_pos();
-                  text_pos+=(xy<double>(10,10));
-
-                  edgetextmap[active_edge]=new Gnome::Canvas::Text(displayed_graph, text_pos.x, text_pos.y, "");
-                  edgetextmap[active_edge]->property_fill_color().set_value("black");
-                }
-              //clicked item was not a node. it could be an e.g. edge. we do not deal with it furthermore.
-              else
-                {
-                  target_item=NULL;
-                }
-            }
-        }
-      break;
-    case GDK_BUTTON_RELEASE:
-      isbutton=0;
-      //we clear settings in two cases
-      //1: the edge is ready (target_item has valid value)
-      //2: the edge creation is cancelled with right button
-      if((target_item)||(e->button.button==3))
-        {
-          if(active_item)
-            {
-              *active_item << Gnome::Canvas::Properties::fill_color("blue");
-              active_item=NULL;
-            }
-          if(target_item)
-            {
-              *target_item << Gnome::Canvas::Properties::fill_color("blue");
-              target_item=NULL;
-            }
-          active_node=INVALID;
-          active_edge=INVALID;
-        }
-      break;
-    default:
-      break;
-    }
-  return false;
-}
-
-bool GraphDisplayerCanvas::eraser_event_handler(GdkEvent* e)
-{
-  switch(e->type)
-    {
-    case GDK_BUTTON_PRESS:
-      active_item=(get_item_at(e->button.x, e->button.y));
-      active_node=INVALID;
-      active_edge=INVALID;
-      for (NodeIt i(g); i!=INVALID; ++i)
-        {
-          if(nodesmap[i]==active_item)
-            {
-              active_node=i;
-            }
-        }
-      if(active_node==INVALID)
-        {
-          for (EdgeIt i(g); i!=INVALID; ++i)
-            {
-              if(edgesmap[i]==active_item)
-                {
-                  active_edge=i;
-                }
-            }
-        }
-    *active_item << Gnome::Canvas::Properties::fill_color("red");
-      break;
-
-    case GDK_BUTTON_RELEASE:
-      if(active_item==(get_item_at(e->button.x, e->button.y)))
-        {
-          if(active_node!=INVALID)
-            {
-
-              //collecting edges to delete
-              EdgeIt e;
-              std::set<Graph::Edge> edges_to_delete;
-
-              g.firstOut(e,active_node);
-              for(;e!=INVALID;g.nextOut(e))
-                {
-                      edges_to_delete.insert(e);
-                }
-
-              g.firstIn(e,active_node);
-              for(;e!=INVALID;g.nextIn(e))
-                {
-                      edges_to_delete.insert(e);
-                }
-
-              //deleting collected edges
-              for(std::set<Graph::Edge>::iterator edge_set_it=edges_to_delete.begin();edge_set_it!=edges_to_delete.end();edge_set_it++)
-                {
-                  delete_item(*edge_set_it);
-                }
-              delete_item(active_node);
-            }
-          //a simple edge was chosen
-          else
-            {
-              delete_item(active_edge);
-            }
-
-          
-        }
-      //pointer was moved, deletion is cancelled
-      else
-        {
-          if(active_node!=INVALID)
-            {
-              *active_item << Gnome::Canvas::Properties::fill_color("blue");
-            }
-          else
-            {
-              *active_item << Gnome::Canvas::Properties::fill_color("green");
-            }
-        }
-      //reseting datas
-      active_item=NULL;
-      active_edge=INVALID;
-      active_node=INVALID;
-      break;
-
-    case GDK_MOTION_NOTIFY:
-      break;
-
-    default:
-      break;
-    }
-  return true;
-}
-
-void GraphDisplayerCanvas::delete_item(NodeIt node_to_delete)
-{
-  delete(nodesmap[node_to_delete]);
-  g.erase(node_to_delete);
-}
-
-void GraphDisplayerCanvas::delete_item(EdgeIt edge_to_delete)
-{
-  delete(edgesmap[edge_to_delete]);
-  g.erase(edge_to_delete);
-}
-
-void GraphDisplayerCanvas::delete_item(Graph::Edge edge_to_delete)
-{
-  delete(edgesmap[edge_to_delete]);
-  g.erase(edge_to_delete);
-}
-
-void GraphDisplayerCanvas::text_reposition(xy<double> new_place)
-{
-  new_place+=(xy<double>(10,10));
-  edgetextmap[active_edge]->property_x().set_value(new_place.x);
-  edgetextmap[active_edge]->property_y().set_value(new_place.y);
-}
-
-void GraphDisplayerCanvas::toggle_edge_activity(BrokenEdge* active_bre, bool on)
-{
-  if(on)
-    {
-      if(active_edge!=INVALID)
-        {
-          std::cout << "ERROR!!!! Valid edge found!" << std::endl;
-        }
-      else
-        {
-          for (EdgeIt i(g); i!=INVALID; ++i)
-            {
-              if(edgesmap[i]==active_bre)
-                {
-                  active_edge=i;
-                }
-            }
-        }
-    }
-  else
-    {
-      if(active_edge!=INVALID)
-        {
-          active_edge=INVALID;
-        }
-      else
-        {
-          std::cout << "ERROR!!!! Invalid edge found!" << std::endl;
-        }
-    }
-
-}