ECEditor.h

// 
// ECEditor.h
//
// created by Daniel Backal
// 02/04/2020
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

#ifndef ECEDITOR_H
#define ECEDITOR_H


#include <string>
#include <vector>
#include "ECTextViewImp.h"
#include "ECCommand.h"
#include "ECRow.h"


/*
    TextDocument is the model being updated by the editor below.
    All commands will edit this file
    This file will then give the editor all of its rows.
*/

class ECDocument
{
public:
    ECDocument();
    virtual ~ECDocument();
    void SetPageDimensions(int x, int y);       // Sets page size, for cursor position and doc position difference
    int GetDocLen();                            // Get num of lines in doc
    int GetRowSizeAt(int y);                    // Get row sizes ofr cursor stuff
    char GetCharAt(int x, int y);               // Get char at current position
    int GetXCursor();                           // These functions take away the need to know about the editor
    int GetYCursor();
    void MoveCursor(int key);                   // Moves the cursor around for the editor to refer to. 
    std::string GetRowAt(int y);                // Return the row for updating screen
    void InsertCharAt(int x, int y, int key);   // Insert a single char at position
    void RemoveCharAt(int x, int y);            // Erase a single char at position
    void InsertEnterAt(int x, int y);           // Inserts an enter
    void MoveWordDown(std::string word);
    void MoveWordUp();
    
private:
    /*
        This must be a vector of rows instead.
        Row type must be glyph or something. Hmm. 
        For now, just use strings, to make Milestone 1 work again.
    */
    std::vector<ECRow> _document;
    int _xcursor;
    int _ycursor;
    int _ydoc;          // dont need an extra _xdoc because the _xcursor and _xdoc never separate
    int _colInView;
    int _rowInView;
};

// Editor is Controller (Model View Controller Model)
// Will call Update - Will have list of commands, all edit a document
// Document will, then, store information (text) to update the view (TextViewImp)
class ECEditor : public ECObserver 
{
    
public:

    ECEditor();
    ~ECEditor();
    void StartEditor();                         // Creates a window and starts the editor
    void Update();                              // Updates editor (refreshes window, notifies key changes, etc)
    void UpdateCursor();                        // Moves cursor from update
    void Enter(int x, int y);                   // Runs Enter Command
    void AddText(int x, int y, int key);        // Runs Insert Command
    void Backspace(int x, int y);               // Runs Remove Command
    void UpdateScreen();                        // To be called after typing, or backspace.
    

private:

    // Needs to have a text view object...
    ECTextViewImp _window;
    // Needs command history for undo and redo
    ECCommandHistory *_histCmds;
    // Doc object
    ECDocument _doc;
    // For cursor manipulation and updating screen:
    int _maxRowSize;
    int _maxRows;

};





#endif