terminal.h

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#pragma once
 
#include <functional>
#include <promeki/core/namespace.h>
#include <promeki/core/size2d.h>
#include <promeki/core/platform.h>
#include <promeki/core/error.h>
#include <promeki/core/result.h>
 
PROMEKI_NAMESPACE_BEGIN
 
class Terminal {
        public:
                using ResizeCallback = std::function<void(int cols, int rows)>;
 
                enum ColorSupport {
                        NoColor,        
                        Grayscale16,    
                        Grayscale256,   
                        GrayscaleTrue,  
                        Basic,          
                        Color256,       
                        TrueColor       
                };
 
                Terminal();
 
                ~Terminal();
 
                Terminal(const Terminal &) = delete;
                Terminal &operator=(const Terminal &) = delete;
 
                Error enableRawMode();
 
                Error disableRawMode();
 
                bool isRawMode() const { return _rawMode; }
 
                Result<int> readInput(char *buf, int maxLen);
 
                Error windowSize(int &cols, int &rows) const;
 
                Size2Di32 size() const;
 
                Error enableMouseTracking();
 
                Error disableMouseTracking();
 
                bool isMouseTrackingEnabled() const { return _mouseTracking; }
 
                Error enableBracketedPaste();
 
                Error disableBracketedPaste();
 
                Error enableAlternateScreen();
 
                Error disableAlternateScreen();
 
                void setResizeCallback(ResizeCallback cb);
 
                void installSignalHandlers();
 
                static ColorSupport colorSupport();
 
                Result<int> writeOutput(const char *data, int len);
 
        private:
                bool            _rawMode = false;
                bool            _mouseTracking = false;
                bool            _bracketedPaste = false;
                bool            _alternateScreen = false;
                ResizeCallback  _resizeCallback;
 
                // Opaque storage for platform-specific terminal state.
                // On POSIX this holds a struct termios.
                void            *_origState = nullptr;
};
 
PROMEKI_NAMESPACE_END