terminal.hh

Go to the documentation of this file.

#ifndef bqtTTYterminalHH
#define bqtTTYterminalHH
#include <deque>
#include <string>
#include <vector>
#include <array>
 
#include "window.hh"
 
class TerminalWindow
{
private:
    Window& wnd;                     
 
public:
    std::deque<char32_t> OutBuffer;  
 
private:
    std::size_t top;                 
    std::size_t bottom;              
 
    struct backup                    
    {
        std::size_t cx; 
        std::size_t cy; 
        Cell attr;      
    } backup;
 
    std::array<unsigned char,4> gset; 
    unsigned char activeset;          
    unsigned char utfmode;            
    unsigned char scs;                
 
    char32_t lastch = U' ';           
 
    std::vector<unsigned> p;          
 
    unsigned       state=0;           
    bool           edgeflag=false;    
    std::u32string string;            
 
private:
    void ResetAttr();             
    void Reset(bool full = true);
 
    void YScrollDown(unsigned y1, unsigned y2, int amount) const;
 
    void YScrollUp(unsigned y1, unsigned y2, int amount) const;
 
    void SaveCur();                   
    void RestoreCur();                
    void EchoBack(std::u32string_view buffer); 
public:
    void Write(std::u32string_view s);
 
    TerminalWindow(Window& w): wnd(w)
    {
        ResetAttr();
        Reset();
        SaveCur();
    }
 
    void Resize(std::size_t newsx, std::size_t newsy);
};
 
#endif