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node.h

/*
 * Copyright (c) 1991,1993 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    This product includes software developed by the Computer Systems
 *    Engineering Group at Lawrence Berkeley Laboratory.
 * 4. Neither the name of the University nor of the Laboratory may be used
 *    to endorse or promote products derived from this software without
 *    specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * @(#) $Header: /cvsroot/nsnam/nam-1/node.h,v 1.40 2006/09/28 06:25:03 tom_henderson Exp $ (LBL)
 */

#ifndef nam_node_h
#define nam_node_h

class Queue;
class Edge;
class Agent;
class Route;
class Monitor;
class NetView;
//class PSView;
class EditView;
class Lan;

#include <math.h>
#include <string.h>
#include <tcl.h>
#include <tclcl.h>

#include "animation.h"

struct NodeMark {
      NodeMark() { name = NULL; color = 0; next = 0; }
      NodeMark(char *str) {
            name = new char[strlen(str)+1];
            strcpy(name, str);
            color = 0;
            next = 0;
      }
      ~NodeMark() { delete []name; }

      char *name;
      int color;
      int shape;
      struct NodeMark *next;
};

const float NodeMarkScale = 0.15;
const int NodeMarkCircle = 0;
const int NodeMarkSquare = 4;
const int NodeMarkHexagon = 6;

class MovementElement {
public:
      MovementElement(double time, double x, double y);
      MovementElement(double time, double x, double y,
                      double x_velocity, double y_velocity, double duration);
      ~MovementElement();

      bool contains(double time, double duration);  // returns true if time >= time_ 
                                                    // and < time_ + duration_

      MovementElement * next_;
      double time_;
      double x_, y_;
      double x_velocity_, y_velocity_;
      double duration_;
};

// This is a list to keep track of node movements
class MovementList {
public:
      MovementList();
      ~MovementList();

      void clear();
      MovementElement * head() {return head_;}

      MovementElement * add(double x, double y, double time);
      void remove(double time);

      void setList(char * list_string);

      int getListString(char* buffer, int buffer_size);
      bool isMoving(double time);
      double lastStopMovement();

      void getPositionAt(double time, double & x, double & y);

private:
      MovementElement * head_;
      int size_;
};




class Node : public Animation, public TclObject {
public:
      virtual ~Node();

      virtual int classid() const { return ClassNodeID; }
      inline const char* name() const { return (label_); }
      inline char* ncolor() const { return (ncolor_); }
      inline int num() const { return (nn_); }
      inline int number() const { return (nn_); }
      inline int addr() const { return (addr_); }
      inline double size() const { return (size_); }
      inline float nsize() const { return (nsize_); }
      inline Agent* agents() const { return (agents_); }
      virtual void size(double s);
      virtual void reset(double);
      inline double x() const { return (x_); }
      inline double y() const { return (y_); }
      virtual double x(Edge *) const { return (x_); }
      virtual double y(Edge *) const { return (y_); }
      inline double dx() const { return (dx_); }
      inline double dy() const { return (dy_); }
      void displace(double dx, double dy) {
            dx_ = dx; dy_ = dy;
      }
      virtual void move(EditView *v, float dwx, float dwy);
      void updatePositionAt(double time);
      virtual float distance(float x, float y) const;
      inline double distance(Node &n) const { 
            return sqrt((x_-n.x_)*(x_-n.x_) + (y_-n.y_)*(y_-n.y_));
      }
      inline double angle(Node &n) const {
            return atan2(n.y_-y_, n.x_-x_);
      }

      void setstart(double t) { starttime_ = t;}
      void setend(double t) { endtime_ = t;}
      void setvelocity(double x, double y) { x_vel_=x; y_vel_=y;}
      void placeorig(double x, double y) { xorig_=x; yorig_=y;}

      MovementElement * addMovementDestination(double world_x, 
                                               double world_y,
                                               double time);
      void removeMovementDestination(double time);
      int getMovementTimeList(char * buffer, int buffer_size);
      double getMaximumX();
      double getMaximumY();

      void setaddr(int addr) { addr_ = addr; }
      virtual void place(double x, double y);
      void label(const char* name, int anchor);
      void dlabel(const char* name);
      void lcolor(const char* name);
      void dcolor(const char* name);
      void ncolor(const char* name);
      void direction(const char* name);
      inline int anchor() const { return (anchor_); }
      inline void anchor(int v) { anchor_ = v; }
      void add_link(Edge*);
      void delete_link(Edge*);
      void add_agent(Agent*);
      void add_route(Route*);
      void delete_route(Route*);
      void place_route(Route*);
      void place_all_routes();
      void clear_routes();
      void delete_agent(Agent*);
      Route *find_route(Edge *e, int group, int pktsrc, int oif) const;
      Agent *find_agent(char *name) const;
      Edge *find_edge(int dst) const;
      int no_of_routes(Edge *e) const;
      virtual int inside(double t, float px, float py) const { 
            return Animation::inside(t, px, py);
      }
      const char* info() const;
      const char* property();
      const char* getname() const;
      void monitor(Monitor *m, double now, char *result, int len);
      inline Edge* links() const { return (links_); }
      inline int marked() const { return (mark_); }
      inline void mark(int v) { mark_ = v; }
      inline int mass() const { return mass_; }
      inline void mass(int m) {mass_=m;}
      virtual char *style() {return 0;}
      virtual void update(double now);

      void init_color(const char *clr);
      void set_down(char *color);
      void set_up();
      inline int isdown() const { return (state_ == DOWN); }

      NodeMark* find_mark(char *name);
      int add_mark(char *name, char *color, char *shape);
      void delete_mark(char *name);
      virtual void arrive_packet(Packet *, Edge *, double) {/*do nothing*/}
      virtual void delete_packet(Packet *) {/*do nothing*/}
      int save(FILE *file);
      int writeNsScript(FILE *file);
      int writeNsMovement(FILE *file);

      Node* next_;
      Queue *queue_;
      Queue* queue() { return queue_; }
      void add_sess_queue(unsigned int grp, Queue *q);
      char * getTclScript();
      char * getTclScriptLabel();
      void setTclScript(const char * label, const char * script);

      int command(int argc, const char * const * argv);

protected:
      Node(const char* name, double size);
      void update_bb();
      void drawlabel(View*) const;

      int mass_; //mass used in AutoNetModel

      double size_;
      float nsize_;
      double x_, y_;
      double xorig_, yorig_;
      double x_vel_,y_vel_;
      double starttime_, endtime_;
      Edge* links_;
      Route* routes_;
      Agent* agents_;
      int anchor_;
      int mark_;
      char* label_;
      int nn_;    // Node id
      int addr_;  // Node address
      int state_;

      NodeMark *nm_;
      int nMark_;
      void draw_mark(View *) const;
      char* dlabel_;  // Label to be drawn beneath the node
      char* lcolor_;  // Inside label color
      char* dcolor_;  // label color
      char* ncolor_;  // node color
      int direction_;

      double dx_, dy_; // displacements used in AutoNetModel

      char * tcl_script_label_; // Text for tcl_script info button
      char * tcl_script_; // Tcl script to be executed when 
                          // tcl_script info button is pressed
      MovementList movement_list;

public:
      bool wireless_; // Indicates if this is a wireless node or not;
};

class BoxNode : public Node {
public:
      BoxNode(const char* name, double size);
      virtual void size(double s);
      virtual void draw(View*, double now);
      virtual void place(double x, double y);
      char *style() {return "box";}
private:
      float x0_, y0_;
      float x1_, y1_;
};

class CircleNode : public Node {
public:
      CircleNode(const char* name, double size);
      virtual void size(double s);
      virtual void draw(View*, double now);
      char *style() {return "circle";}
private:
      float radius_;
};

class HexagonNode : public Node {
public:
      HexagonNode(const char* name, double size);
      virtual void size(double s);
      virtual void draw(View*, double now);
      virtual void place(double x, double y);
      char *style() {return "hexagon";}
private:
      float ypoly_[6];
      float xpoly_[6];
};

class VirtualNode : public Node {
public:
      VirtualNode(const char* name, Lan *lan);
      virtual void size(double s);
      virtual void draw(View*, double now);
      virtual void place(double x, double y);
      virtual void arrive_packet(Packet *p, Edge *e, double atime);
      virtual void delete_packet(Packet *p);
      virtual double x(Edge *e) const;
      virtual double y(Edge *e) const;
      char *style() {return "virtual";}
private:
      Lan *lan_;
};

#endif

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