Changeset 160:14a76109b561 in glemon-0.x

Timestamp:

10/12/06 13:39:29 (18 years ago)

Author:

Hegyi Péter

Branch:

default

Phase:

public

Convert:

svn:c9d7d8f5-90d6-0310-b91f-818b3a526b0e/glemon/trunk@2982

Message:

Node antigravity and edge elasticity based graph layout redesigner.

Files:

• Makefile.am (modified) (1 diff)
• graph_displayer_canvas-event.cc (modified) (4 diffs)
• graph_displayer_canvas.cc (modified) (2 diffs)
• graph_displayer_canvas.h (modified) (3 diffs)
• main_win.cc (modified) (6 diffs)
• main_win.h (modified) (2 diffs)
• nbtab.cc (modified) (4 diffs)
• nbtab.h (modified) (6 diffs)

Makefile.am

@@ -43 +43 @@
         guipixbufs.h \
         i18n.h \
-        gettext.h
+        gettext.h \
+        design_win.h \
+        design_win.cc
 
 glemon_CXXFLAGS = $(GTK_CFLAGS) $(LEMON_CFLAGS)

graph_displayer_canvas-event.cc

@@ -82 +82 @@
   static Gnome::Canvas::Text *coord_text = 0;
   switch(e->type)
-  {
+    {
     case GDK_BUTTON_PRESS:
       //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;
@@ -100 +100 @@
     case GDK_BUTTON_RELEASE:
       if (coord_text)
-      {
-        delete coord_text;
-        coord_text = 0;
-      }
+        {
+          delete coord_text;
+          coord_text = 0;
+        }
       isbutton=0;
       active_item=NULL;
@@ -111 +111 @@
       //we only have to do sg. if the mouse button is pressed AND the click was on a node that was found in the set of nodes
       if(active_node!=INVALID)
-      {
-        (mytab.mapstorage).modified = true;
-
-        //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 new_x, new_y;
-
-        window_to_world (e->motion.x, e->motion.y, new_x, new_y);
-
-        double dx=new_x-clicked_x;
-        double dy=new_y-clicked_y;
-
-        //repositioning node and its text
-        active_item->move(dx, dy);
-        nodetextmap[active_node]->move(dx, dy);
-
-        // the new coordinates of the centre of the node 
-        double coord_x = new_x - (clicked_x - (mytab.mapstorage).coords[active_node].x);
-        double coord_y = new_y - (clicked_y - (mytab.mapstorage).coords[active_node].y);
-
-        // write back the new coordinates to the coords map
-        (mytab.mapstorage).coords.set(active_node, XY(coord_x, coord_y));
-
-        clicked_x=new_x;
-        clicked_y=new_y;
-
-        // reposition the coordinates text
-        std::ostringstream ostr;
-        ostr << "(" <<
-          (mytab.mapstorage).coords[active_node].x << ", " <<
-          (mytab.mapstorage).coords[active_node].y << ")";
-        double radius =
-          (nodesmap[active_node]->property_x2().get_value() -
-          nodesmap[active_node]->property_x1().get_value()) / 2.0;
-        if (coord_text)
-        {
-          coord_text->property_text().set_value(ostr.str());
-          coord_text->property_x().set_value((mytab.mapstorage).coords[active_node].x +
-              radius);
-          coord_text->property_y().set_value((mytab.mapstorage).coords[active_node].y -
-              radius);
-        }
-        else
-        {
-          coord_text = new Gnome::Canvas::Text(
-              displayed_graph,
-              (mytab.mapstorage).coords[active_node].x + radius,
-              (mytab.mapstorage).coords[active_node].y - radius,
-              ostr.str());
-          coord_text->property_fill_color().set_value("black");
-          coord_text->property_anchor().set_value(Gtk::ANCHOR_SOUTH_WEST);
-        }
-
-        //all the edges connected to the moved point has to be redrawn
-        for(OutEdgeIt ei((mytab.mapstorage).graph,active_node);ei!=INVALID;++ei)
-        {
-          XY arrow_pos;
-
-          if (mytab.mapstorage.graph.source(ei) == mytab.mapstorage.graph.target(ei))
-          {
-            arrow_pos = mytab.mapstorage.arrow_pos[ei] + XY(dx, dy);
-          }
-          else
-          {
-            XY moved_node_1(coord_x - dx, coord_y - dy);
-            XY moved_node_2(coord_x, coord_y);
-            Node target = mytab.mapstorage.graph.target(ei);
-            XY fix_node(mytab.mapstorage.coords[target].x,
-                mytab.mapstorage.coords[target].y);
-            XY old_arrow_pos(mytab.mapstorage.arrow_pos[ei]);
-
-            arrow_pos = calcArrowPos(moved_node_1, moved_node_2, fix_node, old_arrow_pos, isbutton);
-          }
-
-          mytab.mapstorage.arrow_pos.set(ei, arrow_pos);
-          edgesmap[ei]->draw();
-
-          //reposition of edgetext
-          XY text_pos=mytab.mapstorage.arrow_pos[ei];
-          text_pos+=(XY(10,10));
-          edgetextmap[ei]->property_x().set_value(text_pos.x);
-          edgetextmap[ei]->property_y().set_value(text_pos.y);
-        }
-
-        for(InEdgeIt ei((mytab.mapstorage).graph,active_node);ei!=INVALID;++ei)
-        {
-          if (mytab.mapstorage.graph.source(ei) != mytab.mapstorage.graph.target(ei))
-          {
-            XY moved_node_1(coord_x - dx, coord_y - dy);
-            XY moved_node_2(coord_x, coord_y);
-            Node source = mytab.mapstorage.graph.source(ei);
-            XY fix_node(mytab.mapstorage.coords[source].x,
-                mytab.mapstorage.coords[source].y);
-            XY old_arrow_pos(mytab.mapstorage.arrow_pos[ei]);
-
-            XY arrow_pos;
-            arrow_pos = calcArrowPos(moved_node_1, moved_node_2, fix_node, old_arrow_pos, isbutton);
-
-            mytab.mapstorage.arrow_pos.set(ei, arrow_pos);
-            edgesmap[ei]->draw();
-
-            //reposition of edgetext
-            XY text_pos=mytab.mapstorage.arrow_pos[ei];
-            text_pos+=(XY(10,10));
-            edgetextmap[ei]->property_x().set_value(text_pos.x);
-            edgetextmap[ei]->property_y().set_value(text_pos.y);
-          }
-        }
-      }
+        {
+          (mytab.mapstorage).modified = true;
+          
+          //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 new_x, new_y;
+          
+          window_to_world (e->motion.x, e->motion.y, new_x, new_y);
+          
+          double dx=new_x-clicked_x;
+          double dy=new_y-clicked_y;
+          
+          moveNode(dx, dy);
+
+          clicked_x=new_x;
+          clicked_y=new_y;
+
+          // reposition the coordinates text
+          std::ostringstream ostr;
+          ostr << "(" <<
+            (mytab.mapstorage).coords[active_node].x << ", " <<
+            (mytab.mapstorage).coords[active_node].y << ")";
+          double radius =
+            (nodesmap[active_node]->property_x2().get_value() -
+             nodesmap[active_node]->property_x1().get_value()) / 2.0;
+          if (coord_text)
+            {
+              coord_text->property_text().set_value(ostr.str());
+              coord_text->property_x().set_value((mytab.mapstorage).coords[active_node].x +
+                                                 radius);
+              coord_text->property_y().set_value((mytab.mapstorage).coords[active_node].y -
+                                                 radius);
+            }
+          else
+            {
+              coord_text = new Gnome::Canvas::Text(
+                                                   displayed_graph,
+                                                   (mytab.mapstorage).coords[active_node].x + radius,
+                                                   (mytab.mapstorage).coords[active_node].y - radius,
+                                                   ostr.str());
+              coord_text->property_fill_color().set_value("black");
+              coord_text->property_anchor().set_value(Gtk::ANCHOR_SOUTH_WEST);
+            }
+
+
+        }
     default: break;
-  }
-
-  return false;
+    }
+
+return false;
 }
 
@@ -824 +761 @@
   }
   else
-  {
-    if(forming_edge!=INVALID)
-    {
-      forming_edge=INVALID;
-    }
-    else
-    {
-      std::cerr << "ERROR!!!! Invalid edge found!" << std::endl;
-    }
-  }
-}
+    {
+      if(forming_edge!=INVALID)
+        {
+          forming_edge=INVALID;
+        }
+      else
+        {
+          std::cerr << "ERROR!!!! Invalid edge found!" << std::endl;
+        }
+    }
+}
+
+void GraphDisplayerCanvas::moveNode(double dx, double dy, Gnome::Canvas::Item * item, Node node)
+{
+  Gnome::Canvas::Item * moved_item=item;
+  Node moved_node=node;
+
+  if(item==NULL && node==INVALID)
+    {
+      moved_item=active_item;
+      moved_node=active_node;
+    }
+  else
+    {
+      isbutton=1;
+    }
+
+  //repositioning node and its text
+  moved_item->move(dx, dy);
+  nodetextmap[moved_node]->move(dx, dy);
+
+  // the new coordinates of the centre of the node 
+  double coord_x = dx + (mytab.mapstorage).coords[moved_node].x;
+  double coord_y = dy + (mytab.mapstorage).coords[moved_node].y;
+
+  // write back the new coordinates to the coords map
+  (mytab.mapstorage).coords.set(moved_node, XY(coord_x, coord_y));
+
+  //all the edges connected to the moved point has to be redrawn
+  for(OutEdgeIt ei((mytab.mapstorage).graph,moved_node);ei!=INVALID;++ei)
+    {
+      XY arrow_pos;
+
+      if (mytab.mapstorage.graph.source(ei) == mytab.mapstorage.graph.target(ei))
+        {
+          arrow_pos = mytab.mapstorage.arrow_pos[ei] + XY(dx, dy);
+        }
+      else
+        {
+          XY moved_node_1(coord_x - dx, coord_y - dy);
+          XY moved_node_2(coord_x, coord_y);
+          Node target = mytab.mapstorage.graph.target(ei);
+          XY fix_node(mytab.mapstorage.coords[target].x,
+                      mytab.mapstorage.coords[target].y);
+          XY old_arrow_pos(mytab.mapstorage.arrow_pos[ei]);
+
+          arrow_pos = calcArrowPos(moved_node_1, moved_node_2, fix_node, old_arrow_pos, isbutton);
+        }
+
+      mytab.mapstorage.arrow_pos.set(ei, arrow_pos);
+      edgesmap[ei]->draw();
+
+      //reposition of edgetext
+      XY text_pos=mytab.mapstorage.arrow_pos[ei];
+      text_pos+=(XY(10,10));
+      edgetextmap[ei]->property_x().set_value(text_pos.x);
+      edgetextmap[ei]->property_y().set_value(text_pos.y);
+    }
+
+  for(InEdgeIt ei((mytab.mapstorage).graph,moved_node);ei!=INVALID;++ei)
+    {
+      if (mytab.mapstorage.graph.source(ei) != mytab.mapstorage.graph.target(ei))
+        {
+          XY moved_node_1(coord_x - dx, coord_y - dy);
+          XY moved_node_2(coord_x, coord_y);
+          Node source = mytab.mapstorage.graph.source(ei);
+          XY fix_node(mytab.mapstorage.coords[source].x,
+                      mytab.mapstorage.coords[source].y);
+          XY old_arrow_pos(mytab.mapstorage.arrow_pos[ei]);
+
+          XY arrow_pos;
+          arrow_pos = calcArrowPos(moved_node_1, moved_node_2, fix_node, old_arrow_pos, isbutton);
+
+          mytab.mapstorage.arrow_pos.set(ei, arrow_pos);
+          edgesmap[ei]->draw();
+
+          //reposition of edgetext
+          XY text_pos=mytab.mapstorage.arrow_pos[ei];
+          text_pos+=(XY(10,10));
+          edgetextmap[ei]->property_x().set_value(text_pos.x);
+          edgetextmap[ei]->property_y().set_value(text_pos.y);
+        }
+    }
+}

graph_displayer_canvas.cc

@@ -6 +6 @@
   nodetextmap(mainw.mapstorage.graph), displayed_graph(*(root()), 0, 0),
   isbutton(0), active_item(NULL), target_item(NULL), nodemap_to_edit(""),
-  edgemap_to_edit(""), autoscale(true), zoomtrack(false), radius_size(20), edge_width(10), mytab(mainw)
+  edgemap_to_edit(""), autoscale(true), zoomtrack(false), radius_size(20), edge_width(10),
+  iterations(20), attraction(0.05), propulsation(40000), mytab(mainw)
 {
   //base event handler is move tool
@@ -252 +253 @@
   radius_p=radius_size;
 }
+
+void GraphDisplayerCanvas::reDesignGraph()
+{
+  double min_dist=40;
+
+  //iteration counter
+  for(int l=0;l<iterations;l++)
+    {
+      Graph::NodeMap<double> x(mytab.mapstorage.graph);
+      Graph::NodeMap<double> y(mytab.mapstorage.graph);
+      XYMap<Graph::NodeMap<double> > actual_forces;
+      actual_forces.setXMap(x);
+      actual_forces.setYMap(y);
+
+      lemon::dim2::Point<double> delta;
+
+      //count actual force for each nodes
+      for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i)
+        {
+          //propulsation of nodes
+          for (NodeIt j((mytab.mapstorage).graph); j!=INVALID; ++j)
+            {
+              if(i!=j)
+                {
+                  delta=((mytab.mapstorage).coords[i]-(mytab.mapstorage).coords[j]);
+
+                  double length_sqr=delta.normSquare();
+                  double length=sqrt(length_sqr);
+                  if(length_sqr<min_dist)
+                    {
+                      length_sqr=min_dist;
+                    }
+
+                  //normalize vector
+                  delta/=length;
+
+                  //calculating propulsation strength
+                  //greater distance menas smaller propulsation strength
+                  delta*=propulsation/length_sqr;
+                    
+                  actual_forces.set(i,(actual_forces[i]+delta));
+                }
+            }
+          //attraction of nodes, to which actual node is bound
+          for(OutEdgeIt ei((mytab.mapstorage).graph,i);ei!=INVALID;++ei)
+            {
+              delta=((mytab.mapstorage).coords[i]-(mytab.mapstorage).coords[mytab.mapstorage.graph.target(ei)]);
+
+              double length_sqr=delta.normSquare();
+              double length=sqrt(length_sqr);
+              if(length_sqr<min_dist)
+                {
+                  length_sqr=min_dist;
+                }
+
+              //normalize vector
+              delta/=length;
+
+              //calculating attraction strength
+              //greater distance means greater strength
+              delta*=attraction*length;
+
+              actual_forces.set(i,actual_forces[i]-delta);
+            }
+          for(InEdgeIt ei((mytab.mapstorage).graph,i);ei!=INVALID;++ei)
+            {
+              delta=((mytab.mapstorage).coords[i]-(mytab.mapstorage).coords[mytab.mapstorage.graph.source(ei)]);
+
+              double length_sqr=delta.normSquare();
+              double length=sqrt(length_sqr);
+              if(length_sqr<min_dist)
+                {
+                  length_sqr=min_dist;
+                }
+
+              //normalize vector
+              delta/=length;
+
+              //calculating attraction strength
+              //greater distance means greater strength
+              delta*=attraction*length;
+
+              actual_forces.set(i,actual_forces[i]-delta);
+            }
+        }
+      for (NodeIt i((mytab.mapstorage).graph); i!=INVALID; ++i)
+        {
+          moveNode(actual_forces[i].x, actual_forces[i].y, nodesmap[i], i);
+        }
+    }
+}
+
+void GraphDisplayerCanvas::get_design_data(double & attraction_p, double & propulsation_p, int & iterations_p)
+{
+  attraction_p=attraction;
+  propulsation_p=propulsation;
+  iterations_p=iterations;
+}
+
+void GraphDisplayerCanvas::set_attraction(double attraction_p)
+{
+  attraction=attraction_p;
+}
+
+void GraphDisplayerCanvas::set_propulsation(double propulsation_p)
+{
+  propulsation=propulsation_p;
+}
+
+void GraphDisplayerCanvas::set_iteration(int iterations_p)
+{
+  iterations=iterations_p;
+}
+

graph_displayer_canvas.h

@@ -269 +269 @@
   bool mapEditEventHandler(GdkEvent*);
 
+private:
+  ///moves node according to the given parameters
+  void moveNode(double, double,  Gnome::Canvas::Item * item=NULL, Node node=INVALID);
+
 public:
   ///Moves the text to new place
@@ -314 +318 @@
   ///\param mapname name of new map
   int addNewEdgeMap(double init,std::string mapname);
+
+  void reDesignGraph();
+
+  void get_design_data(double &, double &, int &);
+  void set_attraction(double);
+  void set_propulsation(double);
+  void set_iteration(int);
 
 private:
@@ -399 +410 @@
   double edge_width;
 
+  ///Iteration number during graph design
+  int iterations;
+
+  ///Attraction factor during graph design
+  double attraction;
+
+  ///Propulsation factor during graph design
+  double propulsation;
+  
 private:
 

main_win.cc

@@ -100 +100 @@
   ag->add( Gtk::Action::create("ShowMaps", _("_Maps")),
            sigc::mem_fun(*this, &MainWin::createMapWin));
+  ag->add( Gtk::Action::create("ShowDesign", _("_Design")),
+           sigc::mem_fun(*this, &MainWin::createDesignWin));
 
   ag->add( Gtk::Action::create("AlgoMenu", _("_Algorithms")) );
@@ -122 +124 @@
   ag->add( Gtk::Action::create("AddMap", Gtk::StockID("gd-newmap")),
       sigc::mem_fun ( *this , &MainWin::createNewMapWin ) );
+
+  ag->add( Gtk::Action::create("DesignGraph", Gtk::Stock::REFRESH),
+      sigc::mem_fun ( *this , &MainWin::reDesignGraph ) );
 
   uim=Gtk::UIManager::create();
@@ -150 +155 @@
       "    <menu action='ShowMenu'>"
       "      <menuitem action='ShowMaps'/>"
+      "      <menuitem action='ShowDesign'/>"
       "    </menu>"
       "    <menu action='AlgoMenu'>"
@@ -174 +180 @@
       "    <separator />"
       "    <toolitem action='AddMap' />"
+      "    <toolitem action='DesignGraph' />"
       "  </toolbar>"
       "</ui>";
@@ -449 +456 @@
 }
 
+void MainWin::createDesignWin()
+{
+  if(active_tab!=-1)
+    {
+      tabs[active_tab]->createDesignWin(tabnames[active_tab]);
+    }
+}
+
 void MainWin::createAlgoWin(int algoid)
 {
@@ -537 +552 @@
   tabs[active_tab]->setView(autoscale, zoomtrack, width, radius);
 }
+
+void MainWin::reDesignGraph()
+{
+  tabs[active_tab]->reDesignGraph();
+}

main_win.h

@@ -145 +145 @@
   ///\ref NoteBookTab
   virtual void createMapWin();
+
+  ///Callback for Show Design menupoint.
+
+  ///It calls the appropriate function in
+  ///\ref NoteBookTab
+  virtual void createDesignWin();
 
   ///Pops up an Algorithm window.
@@ -238 +244 @@
 
   virtual void nodeViewChanged();
+
+  virtual void reDesignGraph();
 };
 

nbtab.cc

@@ -1 +1 @@
 #include <nbtab.h>
 
-NoteBookTab::NoteBookTab():mapwinexists(false)
+NoteBookTab::NoteBookTab():mapwinexists(false), designwinexists(false)
 {
   Gtk::ScrolledWindow *pScrolledWindow = manage(new Gtk::ScrolledWindow);
@@ -208 +208 @@
 }
 
+void NoteBookTab::createDesignWin(std::string name)
+{
+  if(!designwinexists)
+    {
+      double attraction, propulsation;
+      int iterations;
+      gd_canvas->get_design_data(attraction, propulsation, iterations);
+      designwin=new DesignWin("Design Setup - "+name, attraction, propulsation, iterations);
+
+      designwin->signal_attraction().connect(sigc::mem_fun(*this, &NoteBookTab::attraction_ch));
+      designwin->signal_propulsation().connect(sigc::mem_fun(*this, &NoteBookTab::propulsation_ch));
+      designwin->signal_iteration().connect(sigc::mem_fun(*gd_canvas, &GraphDisplayerCanvas::set_iteration));
+      designwin->close_run().connect(sigc::mem_fun(*gd_canvas, &GraphDisplayerCanvas::reDesignGraph));
+
+      designwin->signal_delete_event().connect(sigc::mem_fun(*this, &NoteBookTab::closeDesignWin));
+
+      designwin->show();
+      designwinexists=true;
+    }
+}
+
 void NoteBookTab::closeMapWin()
 {
@@ -214 +235 @@
 }
 
+bool NoteBookTab::closeDesignWin(GdkEventAny * e)
+{
+  if(e->type==GDK_DELETE)
+    {
+      designwinexists=false;
+      delete designwin;
+    }
+}
+
 sigc::signal<void, std::string> NoteBookTab::signal_title_ch()
 {
@@ -228 +258 @@
   gd_canvas->getView(autoscale, zoomtrack, width, radius);
 }
+
+void NoteBookTab::reDesignGraph()
+{
+  gd_canvas->reDesignGraph();
+}
+
+void NoteBookTab::attraction_ch(double v)
+{
+  gd_canvas->set_attraction(v);
+}
+
+void NoteBookTab::propulsation_ch(double v)
+{
+  gd_canvas->set_propulsation(v);
+}
+
+void NoteBookTab::iteration_ch(int v)
+{
+  gd_canvas->set_iteration(v);
+}
+

nbtab.h

@@ -8 +8 @@
 #include "mapstorage.h"
 #include "map_win.h"
+#include "design_win.h"
 #include "graph_displayer_canvas.h"
 #include <libgnomecanvasmm.h>
@@ -78 +79 @@
   bool mapwinexists;
 
+  ///Indicates whether the \ref DesignWin is opened or not. See \ref designwin.
+  bool designwinexists;
+
   ///Address of the only \ref MapWin that the \ref NoteBookTab can open.
 
@@ -86 +90 @@
   MapWin * mapwin;
     
+  ///Address of the only \ref DesignWin that the \ref NoteBookTab can open.
+
+  ///Only one of this window can be opened at the same time (\ref designwinexists), 
+  ///because there is no need for more, one per tab is enough.
+  ///There won't be benefit of more than one, but it would be
+  ///more complicated to synchronize them.
+  DesignWin * designwin;
+
 public:
   ///Callback for 'FileNew' action.
@@ -152 +164 @@
   void createMapWin(std::string);
 
+  ///Pops up and registrates the \ref DesignWin of \ref NoteBookTab.
+  
+  ///See also
+  ///\ref mapwin.
+  void createDesignWin(std::string);
+
   ///Closes and deregistrates the \ref MapWin of \ref NoteBookTab.
   
@@ -158 +176 @@
   void closeMapWin();
 
+  bool closeDesignWin(GdkEventAny *);
+
   ///Sets node representation settings
   void setView(bool, bool, double, double);
@@ -163 +183 @@
   ///Gets node representation settings
   void getView(bool &, bool &, double&, double&);
+
+  void reDesignGraph();
+
+  void attraction_ch(double);
+
+  void propulsation_ch(double);
+
+  void iteration_ch(int);
 };