Retro68/IConsole/retro/IConsole.h

/*
    Copyright 2012 Wolfgang Thaller.

    This file is part of Retro68.

    Retro68 is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    Retro68 is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with Retro68.  If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef RETRO68_CONSOLE_H_
#define RETRO68_CONSOLE_H_

#include <Quickdraw.h>
#include <vector>
#include <string>

namespace retro
{
    class Attributes
    {
        public:
        bool isBold;
        bool isUnderline;
        Attributes(void)    // Code should not be in .h
        {
            reset();
        }
        void reset(void)
        {
            isBold=false;
            isUnderline=false;
        }
    };

    inline bool operator==(const Attributes& lhs, const Attributes& rhs)
    { 
        return lhs.isBold==rhs.isBold && lhs.isUnderline==rhs.isUnderline;
    }
    inline bool operator!=(const Attributes& lhs, const Attributes& rhs)
    {
        return !(lhs == rhs);
    }

    class IConsole
    {
    public:
        IConsole();
        IConsole(GrafPtr port, Rect r);
        ~IConsole();

        void Reshape(Rect newBounds);

        void Draw(Rect r);
        void Draw() { Draw(bounds); }
        void putch(char c);

        void write(const char *s, int n);
        std::string ReadLine();

        static IConsole *currentInstance;

        short GetRows() const { return rows; }
        short GetCols() const { return cols; }
        
        void Idle();

        bool IsEOF() const { return eof; }
    private:
        GrafPtr consolePort = nullptr;
        Rect bounds;
        Attributes currentAttr;

        std::vector<char> chars, onscreen;
        std::vector<Attributes> attrs;
        bool isProcessingEscSequence;
        int sequenceStep;

        short cellSizeX;
        short cellSizeY;

        short rows = 0, cols = 0;

        short cursorX, cursorY;

        Rect dirtyRect = {};
        
        long blinkTicks = 0;
        bool cursorDrawn = false;
        bool cursorVisible = true;
        bool eof = false;

        void PutCharNoUpdate(char c);
        void Update();

        Rect CellRect(short x, short y);
        void DrawCell(short x, short y, bool erase = true);
        void DrawCells(short x1, short x2, short y, bool erase = true);
        void ScrollUp(short n = 1);
        void ProcessEscSequence(char c);
        void SetAttributes(Attributes aa);
        
        void InvalidateCursor();

        virtual char WaitNextChar();
    
    protected:
        void Init(GrafPtr port, Rect r);
        
    };


}

#endif /* RETRO68_CONSOLE_H_ */