LocalIO.h

/*
 * Copyright (c) 2008-2014, Pedigree Developers
 *
 * Please see the CONTRIB file in the root of the source tree for a full
 * list of contributors.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
 
#ifndef LOCALIO_H
#define LOCALIO_H
 
#include "pedigree/kernel/debugger/DebuggerIO.h"
#include "pedigree/kernel/processor/types.h"
 
class Keyboard;
class Vga;
 
#define MAX_CONSOLE_WIDTH 90
#define MAX_CONSOLE_HEIGHT 30
#define CONSOLE_DEFAULT_MODE 2
 
class LocalIO : public DebuggerIO {
 public:
  LocalIO(Vga* pVga, Keyboard* pKeyboard);
  ~LocalIO();
 
  void initialise();
  void destroy();
 
  void setCliUpperLimit(size_t nlines);
  void setCliLowerLimit(size_t nlines);
 
  void enableCli();
  void disableCli();
 
  void cls();
 
  virtual char getCharNonBlock();
 
  void drawHorizontalLine(char c, size_t row, size_t colStart, size_t colEnd,
                          DebuggerIO::Colour foreColour, DebuggerIO::Colour backColour);
  void drawVerticalLine(char c, size_t col, size_t rowStart, size_t rowEnd,
                        DebuggerIO::Colour foreColour, DebuggerIO::Colour backColour);
 
  void drawString(const char* str, size_t row, size_t col, DebuggerIO::Colour foreColour,
                  DebuggerIO::Colour backColour);
 
  size_t getWidth() {
    return m_nWidth;
  }
  size_t getHeight() {
    return m_nHeight;
  }
 
  void enableRefreshes();
  void disableRefreshes();
  void forceRefresh();
 
  char getChar();
 
  void readDimensions() {}
 
 protected:
  void scroll();
 
  void moveCursor();
 
  void putChar(char c, DebuggerIO::Colour foreColour, DebuggerIO::Colour backColour);
 
  void setMode(int nMode);
  int getMode();
 
  uint16_t m_pFramebuffer[MAX_CONSOLE_WIDTH * MAX_CONSOLE_HEIGHT];
 
  uint16_t m_pOldFramebuffer[MAX_CONSOLE_WIDTH * MAX_CONSOLE_HEIGHT];
 
  size_t m_nWidth;
  size_t m_nHeight;
 
  size_t m_UpperCliLimit;  
  size_t m_LowerCliLimit;  
 
  size_t m_CursorX, m_CursorY;
 
  Vga* m_pVga;
 
  Keyboard* m_pKeyboard;
 
 private:
  LocalIO(const LocalIO&);
  LocalIO& operator=(const LocalIO&);
};
 
#endif