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