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97 lines
2.3 KiB
C++
97 lines
2.3 KiB
C++
/*
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*--------------------------------------------------------------------
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* Project: VM65 - Virtual Machine/CPU emulator programming
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* framework.
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*
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* File: Display.h
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*
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* Purpose: Prototype of Display class and all supportig data
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* structures, enumerations, constants and macros.
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*
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* Date: 8/25/2016
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*
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* Copyright: (C) by Marek Karcz 2016. All rights reserved.
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*
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* Contact: makarcz@yahoo.com
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*
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* License Agreement and Warranty:
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This software is provided with No Warranty.
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I (Marek Karcz) will not be held responsible for any damage to
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computer systems, data or user's health resulting from use.
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Please proceed responsibly and apply common sense.
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This software is provided in hope that it will be useful.
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It is free of charge for non-commercial and educational use.
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Distribution of this software in non-commercial and educational
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derivative work is permitted under condition that original
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copyright notices and comments are preserved. Some 3-rd party work
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included with this project may require separate application for
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permission from their respective authors/copyright owners.
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*--------------------------------------------------------------------
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*/
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#ifndef DISPLAY_H
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#define DISPLAY_H
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#include "system.h"
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#include "ConsoleIO.h"
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#define DISP_TABSIZE 4
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namespace MKBasic {
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enum eScreenDimensions {
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SCREENDIM_COL = 80,
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SCREENDIM_ROW = 24
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};
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enum eScreenSpecChars {
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SCREENSPECCHARS_NL = (int)'\n', // new line
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SCREENSPECCHARS_CR = (int)'\r', // caret
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SCREENSPECCHARS_TB = (int)'\t', // tab
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SCREENSPECCHARS_BS = (int)'\b', // backspace
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SCREENSPECCHARS_BE = (int)'\a' // bell
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};
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struct CursorCoord {
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unsigned int row;
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unsigned int col;
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};
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class Display
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{
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public:
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Display();
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~Display();
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void GotoXY(unsigned int col, unsigned int row);
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void PutChar(char c);
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void ClrScr();
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char GetCharAt(unsigned int col, unsigned int row);
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void ShowScr();
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CursorCoord *GetCursorCoord();
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char GetLastChar();
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protected:
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private:
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char mScreen[SCREENDIM_ROW][SCREENDIM_COL];
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char mLastChar;
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CursorCoord mCursorCoord;
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unsigned int mShellConsoleWidth;
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unsigned int mScrLines;
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unsigned int mScrColumns;
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ConsoleIO *mpConIO;
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void InitScr();
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void ScrollUp();
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bool IsSpecChar(char c);
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int GetConsoleWidth();
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};
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} // namespace MKBasic
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#endif
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