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131 lines
2.2 KiB
131 lines
2.2 KiB
/*
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* Copyright (C) 2014 Satoshi Noguchi
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* Copyright (C) 2014 Synaptics Inc
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdio.h>
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#include <sys/ioctl.h>
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#include <termios.h>
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#include <unistd.h>
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#include <string.h>
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#include "display.h"
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#define ESC 0x1B
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// default display
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void Display::Output(const char * buf)
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{
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printf("%s", buf);
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}
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// ansi console
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AnsiConsole::AnsiConsole() : Display()
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{
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m_buf = NULL;
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GetWindowSize();
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m_curX = 0;
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m_curY = 0;
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m_maxCurX = 0;
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m_maxCurY = 0;
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}
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AnsiConsole::~AnsiConsole()
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{
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delete [] m_buf;
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}
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void AnsiConsole::GetWindowSize()
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{
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struct winsize winsz;
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ioctl(STDOUT_FILENO, TIOCGWINSZ, &winsz);
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if (m_numRows != winsz.ws_row || m_numCols != winsz.ws_col)
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{
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m_numRows = winsz.ws_row;
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m_numCols = winsz.ws_col;
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if (m_buf != NULL)
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{
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delete [] m_buf;
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}
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m_buf = new char[m_numRows * m_numCols];
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Clear();
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}
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}
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void AnsiConsole::Output(const char * buf)
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{
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char * p;
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while (m_curY < m_numRows &&
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m_numCols * m_curY + m_curX < m_numRows * m_numCols)
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{
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p = &(m_buf[m_numCols * m_curY + m_curX]);
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if (*buf == '\0')
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{
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break;
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}
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else if (*buf == '\n')
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{
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memset(p, ' ', m_numCols - m_curX);
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m_curX = 0;
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m_curY++;
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}
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else if (m_curX < m_numCols)
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{
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*p = *buf;
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m_curX++;
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}
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buf++;
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if (m_maxCurX < m_curX) m_maxCurX = m_curX;
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if (m_maxCurY < m_curY) m_maxCurY = m_curY;
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}
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}
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void AnsiConsole::Clear()
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{
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printf("%c[2J", ESC);
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}
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void AnsiConsole::Reflesh()
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{
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int i;
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int j;
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char * p;
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printf("%c[%d;%dH", ESC, 0, 0);
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for (j = 0; j < m_maxCurY; j++)
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{
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p = &(m_buf[m_numCols * j]);
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for (i = 0; i < m_maxCurX; i++)
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{
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putc(*p, stdout);
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p++;
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}
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putc('\n', stdout);
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}
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GetWindowSize();
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m_curX = 0;
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m_curY = 0;
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m_maxCurX = 0;
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m_maxCurY = 0;
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}
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