buffer.h

/*
  Fri Dec 05, 2014 01:47:09
  This is a simplification.  

  There should only be one class here that handles everything. 
  
  Likewise, there should only be one editing mode.  
  TODO: code review
 */
#ifndef BUFFER_H
#define BUFFER_H

#include <ncurses.h>
#include <vector>
#include <string>
#include <cstring>
#include <stdio.h>
#include <algorithm> // min()
#include <fstream>
#include "boost/filesystem.hpp"
#include "boost/filesystem/path.hpp"
#include "boost/filesystem/operations.hpp"
#include <stdlib.h> // getline
#include <sstream>
#include <unistd.h>  // usleep

using std::vector;
using std::string;
using std::min;
using std::stringstream;
using std::endl;

namespace fs = boost::filesystem;

#define ENTER 10
#define TAB 9
#define ESCAPE 27


// a line has a number and text
struct line{  
  int number;
  string text;
};

struct location{
  int x;
  int y;
};

// a buffer has lines, but it also has a display 
class buffer{
public:
  // variables
  WINDOW* bufSubWin;
  vector<line> lines;
  string mode;
  int xmax; // maximum x position determined by screen size
  int ymax; // maximum y position determined by screen size
  location point; // current x,y location on screen
  location mark; // location to cut/paste from
  //int cx; // current x position on screen
  //int cy; // current y position on screen
  int startLine; // line at top of screen
  int finishLine; // line at bottom of screen
  int currentLine; // line that cursor is on
  int lineNumber; // always should be currentLine + 1
  string name; // name of buffer
  string CurrentFileName; // filename for buffer
  bool editorIsRunning;
  int keyPress;
  string pathName;
  // functions
  virtual void init(); // set necessary variables in object
  virtual void stats(); // show lines in buffer, current position
  virtual void update(); // get screen dimensions and line values
  virtual void getStartFinish(); // find startLine and finishLine for screen rendering
  virtual void updateLineNumbers(); // renumber lines appropriately
  virtual void print2vec(const char cstring[]); // pushes text into vector of lines
  virtual void displayLines(); // renders lines to fit on screen
  virtual void setName(const string&); // set name of buffer
  string getName(); // return name of buffer

  //virtual void listFiles();
  virtual void listFiles(string&);
  virtual void openFile(string);
  virtual void writeFile(string);
  virtual void getCwd();

  void getUserInput();
  void getUserInput(int keyPress);
  
  void key_up();
  void key_down();
  void key_left();
  void key_right();
  void key_home();
  void key_end();
  void key_pgUp();
  void key_pgDown();
  void key_backspace();
  void key_enter_textMode();
  void key_enter_fileMode();
  void lineGap(int);

//void openFile(string&);
//void writeFile(string&);

};

#endif //BUFFER_H