Changeset 1645:4a04bb856ac7 in lemon-0.x for gui/graph_displayer_canvas-event.cc

Timestamp:

08/23/05 09:36:09 (19 years ago)

Author:

Akos Ladanyi

Branch:

default

Phase:

public

Convert:

svn:c9d7d8f5-90d6-0310-b91f-818b3a526b0e/lemon/trunk@2158

Message:

• id maps are not editable
• handle exceptions thrown by the file reader
• texts are always above the edges
• store a default value for all maps, so that edges and nodes created after adding a new map receive the default value too
• create node on button release, not on click (fixes a few oddities)

File:

• gui/graph_displayer_canvas-event.cc (modified) (8 diffs)

gui/graph_displayer_canvas-event.cc

@@ -215 +215 @@
 {
   switch(e->type)
-    {
-
-      //draw the new node in red at the clicked place
-    case GDK_2BUTTON_PRESS:
-      //std::cout << "double click" << std::endl;
-      break;
-    case GDK_BUTTON_PRESS:
+  {
+    //move the new node
+    case GDK_MOTION_NOTIFY:
+      {
+        GdkEvent * generated=new GdkEvent();
+        generated->motion.x=e->motion.x;
+        generated->motion.y=e->motion.y;
+        generated->type=GDK_MOTION_NOTIFY;
+        moveEventHandler(generated);      
+        break;
+      }
+
+    case GDK_BUTTON_RELEASE:
       mapstorage.modified = true;
 
@@ -232 +238 @@
       window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
 
+      // update coordinates
       mapstorage.coords.set(active_node, xy<double>(clicked_x, clicked_y));
+
+      // update id map
       (*mapstorage.nodemap_storage["id"])[active_node] =
         mapstorage.graph.id(active_node);
 
+      // update all other maps
+      for (std::map<std::string, Graph::NodeMap<double>*>::const_iterator it =
+          mapstorage.nodemap_storage.begin(); it !=
+          mapstorage.nodemap_storage.end(); ++it)
+      {
+        if ((it->first != "id") &&
+            (it->first != "coordinates_x") &&
+            (it->first != "coordiantes_y"))
+        {
+          (*(it->second))[active_node] =
+            mapstorage.nodemap_default[it->first];
+        }
+      }
+
       nodesmap[active_node]=new Gnome::Canvas::Ellipse(displayed_graph,
-        clicked_x-20, clicked_y-20, clicked_x+20, clicked_y+20);
+          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]) <<
+        Gnome::Canvas::Properties::fill_color("blue");
+      *(nodesmap[active_node]) <<
+        Gnome::Canvas::Properties::outline_color("black");
+      active_item->raise_to_top();
+
       (nodesmap[active_node])->show();
 
       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, "");
+          clicked_x+node_property_defaults[N_RADIUS]+5,
+          clicked_y+node_property_defaults[N_RADIUS]+5, "");
       nodetextmap[active_node]->property_fill_color().set_value("darkblue");
+      nodetextmap[active_node]->raise_to_top();
 
       mapwin.updateNode(active_node);
 
-      break;
-
-      //move the new node
-    case GDK_MOTION_NOTIFY:
-      {
-        GdkEvent * generated=new GdkEvent();
-        generated->motion.x=e->motion.x;
-        generated->motion.y=e->motion.y;
-        generated->type=GDK_MOTION_NOTIFY;
-        moveEventHandler(generated);      
-        break;
-      }
-
-      //finalize the new node
-    case GDK_BUTTON_RELEASE:
-      window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
-
-      active_item->lower_to_bottom();
-
-      target_item=NULL;
-      target_item=get_item_at(clicked_x, clicked_y);
-
-      active_item->raise_to_top();
-
       isbutton=0;
-      if(target_item==active_item)
-        {
-          //Its appropriate color is given by update.
-          *active_item << Gnome::Canvas::Properties::fill_color("blue");
-        }
-      else
-        {
-          //In this case the given color has to be overwritten, because the noe covers an other item.
-          *active_item << Gnome::Canvas::Properties::fill_color("lightblue");
-        }
       target_item=NULL;
       active_item=NULL;
       active_node=INVALID;
+
       break;
     default:
       break;
-    }
+  }
   return false;
 }
@@ -298 +293 @@
 {
   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
-
-              window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
-
-              active_item=(get_item_at(clicked_x, clicked_y));
-              active_node=INVALID;
-              for (NodeIt i(mapstorage.graph); 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
-            {
-              window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
-              target_item=(get_item_at(clicked_x, clicked_y));
-              Node target_node=INVALID;
-              for (NodeIt i(mapstorage.graph); 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)
-                {
-                  if(target_node!=active_node)          
-                    {
-          mapstorage.modified = true;
-
-                      *(nodesmap[target_node]) <<
-                        Gnome::Canvas::Properties::fill_color("red");
-
-                      //creating new edge
-                      active_edge=mapstorage.graph.addEdge(active_node,
-                                                           target_node);
-
-                      //initiating values corresponding to new edge in maps
-                      mapstorage.initMapsForEdge(active_edge);
-                      (*mapstorage.edgemap_storage["id"])[active_edge] = 
-                        mapstorage.graph.id(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]->getArrowPos();
-                      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("darkgreen");
-
-                      //updating its properties
-                      mapwin.updateEdge(active_edge);
-                    }
-                  else
-                    {
-                      target_node=INVALID;
-                      std::cerr << "Loop edge is not yet implemented!" << std::endl;
-                    }
-                }
-              //clicked item was not a node. it could be an e.g. edge. we do not deal with it furthermore.
-              else
-                {
-                  target_item=NULL;
-                }
-            }
-        }
+      {
+        //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
+
+          window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
+
+          active_item=(get_item_at(clicked_x, clicked_y));
+          active_node=INVALID;
+          for (NodeIt i(mapstorage.graph); 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
+        {
+          window_to_world (e->button.x, e->button.y, clicked_x, clicked_y);
+          target_item=(get_item_at(clicked_x, clicked_y));
+          Node target_node=INVALID;
+          for (NodeIt i(mapstorage.graph); 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)
+          {
+            if(target_node!=active_node)                
+            {
+              mapstorage.modified = true;
+
+              *(nodesmap[target_node]) <<
+                Gnome::Canvas::Properties::fill_color("red");
+
+              //creating new edge
+              active_edge=mapstorage.graph.addEdge(active_node,
+                  target_node);
+
+              // update id map
+              (*mapstorage.edgemap_storage["id"])[active_edge] = 
+                mapstorage.graph.id(active_edge);
+ 
+              // update all other maps
+              for (std::map<std::string,
+                  Graph::EdgeMap<double>*>::const_iterator it =
+                  mapstorage.edgemap_storage.begin(); it !=
+                  mapstorage.edgemap_storage.end(); ++it)
+              {
+                if (it->first != "id")
+                {
+                  (*(it->second))[active_edge] =
+                    mapstorage.edgemap_default[it->first];
+                }
+              }
+
+              //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);
+
+              edgesmap[active_edge]->lower_to_bottom();
+
+              //initializing edge-text as well, to empty string
+              xy<double> text_pos=edgesmap[active_edge]->getArrowPos();
+              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(
+                  "darkgreen");
+              edgetextmap[active_edge]->raise_to_top();
+
+              //updating its properties
+              mapwin.updateEdge(active_edge);
+            }
+            else
+            {
+              target_node=INVALID;
+              std::cerr << "Loop edge is not yet implemented!" << std::endl;
+            }
+          }
+          //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:
@@ -416 +427 @@
       //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;
-        }
+      {
+        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;
 }
@@ -589 +600 @@
             if(clicked_edge!=INVALID)
               {
+                // the id map is not editable
+                if (nodemap_to_edit == "id") return 0;
                 //If there is already edited edge, it has to be saved first
                 if(entrywidget.is_visible())
@@ -712 +725 @@
             if(clicked_node!=INVALID)
               {
+                // the id map is not editable
+                if (nodemap_to_edit == "id") return 0;
                 //If there is already edited edge, it has to be saved first
                 if(entrywidget.is_visible())
@@ -914 +929 @@
   //if addition was not successful addEdgeMap returns one.
   //cause can be that there is already a map named like the new one
-  if(mapstorage.addEdgeMap(mapname,emptr))
+  if(mapstorage.addEdgeMap(mapname,emptr, default_value))
     {
       return 1;
@@ -936 +951 @@
   //if addition was not successful addNodeMap returns one.
   //cause can be that there is already a map named like the new one
-  if(mapstorage.addNodeMap(mapname,emptr))
+  if(mapstorage.addNodeMap(mapname,emptr, default_value))
     {
       return 1;