source: glemon-0.x/new_map_win.cc @ 88:c397e85ec555

#include <new_map_win.h>

bool NewMapWin::closeIfEscapeIsPressed(GdkEventKey* e)
{
  if(e->keyval==GDK_Escape)
  {
    hide();
  }
  return true;
}

NewMapWin::NewMapWin(const std::string& title, GraphDisplayerCanvas & grdispc):gdc(grdispc),node("Create NodeMap"),edge("Create EdgeMap")
{
  set_title(title);
  set_default_size(200, 50);

  signal_key_press_event().connect(sigc::mem_fun(*this, &NewMapWin::closeIfEscapeIsPressed));


  //entries
  table=new Gtk::Table(3, 2, false);

  label=new Gtk::Label;
  label->set_text("Name of new map:");
  name.set_text("");

  (*table).attach(*label,0,1,0,1,Gtk::SHRINK,Gtk::SHRINK,10,3);
  (*table).attach(name,1,2,0,1,Gtk::SHRINK,Gtk::SHRINK,10,3);

  label=new Gtk::Label;
  label->set_text("Default value in the map:");
  default_value.set_text("0");

  (*table).attach(*label,0,1,1,2,Gtk::SHRINK,Gtk::SHRINK,10,3);
  (*table).attach(default_value,1,2,1,2,Gtk::SHRINK,Gtk::SHRINK,10,3);

  //node vs. edge map selector
  Gtk::RadioButton::Group group = node.get_group();
  edge.set_group(group);

  (*table).attach(node,0,1,2,3,Gtk::SHRINK,Gtk::SHRINK,10,3);
  (*table).attach(edge,1,2,2,3,Gtk::SHRINK,Gtk::SHRINK,10,3);

  vbox.pack_start(*table);

  //OK button
  button=new Gtk::Button("OK");

  button->signal_clicked().connect
    (
     sigc::mem_fun(*this, &NewMapWin::buttonPressed)
    );


  vbox.pack_start(*button);

  add(vbox);

  show_all_children();

}

void NewMapWin::showByPreChoose(bool itisedge)
{
  if(itisedge)
    {
      edge.set_active();
    }
  else
    {
      node.set_active();
    }
  node.hide();
  edge.hide();
  show();
}

void NewMapWin::buttonPressed()
{
  double def_val=0;

  //get and formulate text
  std::string def_val_str=default_value.get_text();
  std::string polishform=string2Polishform(def_val_str,edge.get_active());

  //get name of text
  std::string mapname=name.get_text();

  if(!mapname.empty()&&!polishform.empty())
    {
      int abortion=0;
      if(edge.get_active())
        {
          //create the new map
          Graph::EdgeMap<double> * emptr=new Graph::EdgeMap<double> (gdc.mapstorage.graph);

          std::stack<double> polishstack;
  
          for(EdgeIt k(gdc.mapstorage.graph); k!=INVALID; ++k)
            {
              for(int i=0;i<(int)polishform.size();i++)
                {
                  double op1, op2;
                  bool operation=true;
                  switch(polishform[i])
                    {
                    case '+':
                    case '-':
                    case '/':
                    case '*':
                      op1=polishstack.top();
                      polishstack.pop();
                      op2=polishstack.top();
                      polishstack.pop();
                      break;
                    default:
                      //substitute variable
                      std::map< std::string,Graph::EdgeMap<double> * > ems=gdc.mapstorage.edgemap_storage;
                      bool itisvar=(ems.find(ch2var[ polishform[i] ])!=ems.end());
                      if(itisvar)
                        {
                          polishstack.push( (*(gdc.mapstorage.edgemap_storage[ ch2var[ polishform[i] ] ]))[k]);
                        }
                      else
                        {
                          char * def_val_ch=new char [(int)(ch2var[ polishform[i] ].length())];
                          for(int j=0;j<(int)(ch2var[ polishform[i] ].length());j++)
                            {
                              def_val_ch[j]=ch2var[ polishform[i] ][j];
                            }
                          polishstack.push(atof(def_val_ch));
                        }
                      operation=false;
                      break;
                    }
                  if(operation)
                    {
                      double res;
                      switch(polishform[i])
                        {
                        case '+':
                          res=op1+op2;
                          break;
                        case '-':
                          res=op2-op1;
                          break;
                        case '/':
                          res=op2/op1;
                          break;
                        case '*':
                          res=op1*op2;
                          break;
                        default:
                          std::cout << "How could we get here?" << std::endl;
                          break;
                        }
                      polishstack.push(res);
                    }
                }
              (*emptr)[k]=polishstack.top(); 
            }

          //if addition was not successful addEdgeMap returns one.
          //cause can be that there is already a map named like the new one
          if(gdc.mapstorage.addEdgeMap(mapname, emptr, def_val))
            {
              abortion=1;
            }

          //add it to the list of the displayable maps
          gdc.mapwin.registerNewEdgeMap(mapname);

          //display it
          gdc.changeEdgeText(mapname);
        }
      else //!edge.get_active()
        {
          //create the new map
          Graph::NodeMap<double> * emptr=new Graph::NodeMap<double> (gdc.mapstorage.graph);

          std::stack<double> polishstack;
  
          for(NodeIt k(gdc.mapstorage.graph); k!=INVALID; ++k)
            {
              for(int i=0;i<(int)polishform.size();i++)
                {
                  double op1, op2;
                  bool operation=true;
                  switch(polishform[i])
                    {
                    case '+':
                    case '-':
                    case '/':
                    case '*':
                      op1=polishstack.top();
                      polishstack.pop();
                      op2=polishstack.top();
                      polishstack.pop();
                      break;
                    default:
                      std::map< std::string,Graph::NodeMap<double> * > nms=gdc.mapstorage.nodemap_storage;
                      bool itisvar=(nms.find(ch2var[ polishform[i] ])!=nms.end());
                      if(itisvar)
                        {
                          polishstack.push( (*(gdc.mapstorage.nodemap_storage[ ch2var[ polishform[i] ] ]))[k]);
                        }
                      else
                        {
                          char * def_val_ch=new char [(int)(ch2var[ polishform[i] ].length())];
                          for(int j=0;j<(int)(ch2var[ polishform[i] ].length());j++)
                            {
                              def_val_ch[j]=ch2var[ polishform[i] ][j];
                            }
                          polishstack.push(atof(def_val_ch));
                        }
                      operation=false;
                      break;
                    }
                  if(operation)
                    {
                      double res;
                      switch(polishform[i])
                        {
                        case '+':
                          res=op1+op2;
                          break;
                        case '-':
                          res=op2-op1;
                          break;
                        case '/':
                          res=op2/op1;
                          break;
                        case '*':
                          res=op1*op2;
                          break;
                        default:
                          std::cout << "How could we get here?" << std::endl;
                          break;
                        }
                      polishstack.push(res);
                    }
                }
              (*emptr)[k]=polishstack.top(); 
            }

          //if addition was not successful addNodeMap returns one.
          //cause can be that there is already a map named like the new one
          if(gdc.mapstorage.addNodeMap(mapname,emptr, def_val))
            {
              abortion=1;
            }

          //add it to the list of the displayable maps
          gdc.mapwin.registerNewNodeMap(mapname);

          //display it
          gdc.changeNodeText(mapname);
        }
      if(!abortion)
        {
          name.set_text("");
          default_value.set_text("0");
          edge.show();
          node.show();
          hide();
        }
    }
}

std::string NewMapWin::string2Polishform(std::string rawcommand, bool itisedge)
{
  bool valid_entry=true;

  std::map<std::string, int> str2i;

  std::string command;

  std::string variable;

  char index='a';

  for(int i=0;(valid_entry&&(i<(int)rawcommand.size()));i++)
    {
      switch(rawcommand[i])
        {
        case '+':
        case '-':
        case '*':
        case '/':
        case ')':
        case '(':
          if(!variable.empty())
            {
              valid_entry=validVariable(variable, itisedge);
              ch2var[index]=variable;
              command+=index;
              index++;
              variable.erase(0,variable.size());          
            }
          command+=rawcommand[i];
          break;
        default:
          variable+=rawcommand[i];
          break;
        }
    }

  if(!variable.empty()&&valid_entry)
    {
      valid_entry=validVariable(variable, itisedge);
      ch2var[index]=variable;
      command+=index;
      index++;
      variable.erase(0,variable.size());          
    }

  if(valid_entry)
    {
      unsigned int pr=10000;
      bool prevmult=false;
      unsigned int prev_change;
      unsigned int prev_br=10000;
      int counter=0;
      std::string comm_nobr="";
      std::vector<unsigned int> p;
      p.resize(counter+1);
      
      //limits
      //6 brackets embedded
      //100 operation in a row from the same priority
      
      for(int i=0;i<(int)command.size();i++)
        {
          bool put_in_string=true;
          switch(command[i])
            {
            case '(':
              pr=prev_br+10000;
              prev_br=pr;
              prevmult=false;
              put_in_string=false;
              break;
            case ')':
              pr=prev_br-10000;
              prev_br=pr;
              prevmult=false;
              put_in_string=false;
              break;
            case '+':
            case '-':
              if(prevmult)
                {
                  pr=prev_change;
                }
              p[counter]=pr;
              pr-=100;

              prevmult=false;
              break;
            case '/':
            case '*':
              if(!prevmult)
                {
                  prev_change=pr;
                  pr+=200;
                  pr-=1;
                }
              p[counter]=pr;
              pr-=1;
              prevmult=true;
              break;
            default:
              p[counter]=65000;
              break;
            }
          if(put_in_string)
            {
              counter++;
              p.resize(counter+1);
              comm_nobr=comm_nobr+command[i];
            }
        }

      tree_node * root=weightedString2Tree(comm_nobr, p, 0);

      std::string polishform=postOrder(root);

      return polishform;
    }
  return "";
}

NewMapWin::tree_node * NewMapWin::weightedString2Tree(std::string to_tree, std::vector<unsigned int> & p, int offset)
{
  int min=p[offset];
  int minplace=0;
  for(int i=0;i<(int)to_tree.size();i++)
    {
      if(min>p[offset+i])
        {
          min=p[offset+i];
          minplace=i;
        }
    }
  tree_node * act_node=new tree_node;
  act_node->ch=to_tree[minplace];
  if(to_tree.size()>=3)
    {
      act_node->left_child=weightedString2Tree(to_tree.substr(0,minplace), p, offset);
      act_node->right_child=weightedString2Tree(to_tree.substr(minplace+1,to_tree.size()-minplace-1), p, offset+minplace+1);
    }
  else
    {
      act_node->left_child=NULL;
      act_node->right_child=NULL;
    }
  return act_node;
}

std::string NewMapWin::postOrder(tree_node * subtree)
{
  std::string subtree_to_string;
  if(subtree->left_child)
    {
      subtree_to_string=postOrder(subtree->left_child);
    }
  if(subtree->right_child)
    {
      subtree_to_string=subtree_to_string+postOrder(subtree->right_child);
    }
  subtree_to_string=subtree_to_string+subtree->ch;
  return subtree_to_string;
}

bool NewMapWin::validVariable(std::string variable, bool itisedge)
{
  bool cancel;
  //is it mapname?
  if(itisedge)
    {
      cancel=(gdc.mapstorage.edgemap_storage.find(variable)==gdc.mapstorage.edgemap_storage.end());
    }
  else
    {
      cancel=(gdc.mapstorage.nodemap_storage.find(variable)==gdc.mapstorage.nodemap_storage.end());
    }
  //maybe it is number
  int point_num=0;
  if(cancel)
    {
      cancel=false;
      for(int j=0;(!cancel)&&(j<(int)variable.size());j++)
        {
          if(((variable[j]<'0')||(variable[j]>'9'))&&(variable[j]!='.'))
            {
              cancel=true;
            }
          else
            {
              if(variable[j]=='.')
                {
                  point_num++;
                  if(point_num>1)
                    {
                      cancel=true;
                    }
                }
            }
        }
    }
  if(cancel)
    {
      return false;
    }
  return true;
}