Satoshi Noguchi | c534360 | 2014-09-29 02:49:22 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2014 Satoshi Noguchi |
| 3 | * Copyright (C) 2014 Synaptics Inc |
| 4 | * |
| 5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | * you may not use this file except in compliance with the License. |
| 7 | * You may obtain a copy of the License at |
| 8 | * |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | * |
| 11 | * Unless required by applicable law or agreed to in writing, software |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | * See the License for the specific language governing permissions and |
| 15 | * limitations under the License. |
| 16 | */ |
| 17 | |
| 18 | #include <stdio.h> |
| 19 | #include <sys/ioctl.h> |
Andrew Duggan | 7f495fb | 2014-09-30 13:51:20 -0700 | [diff] [blame] | 20 | #include <termios.h> |
Satoshi Noguchi | c534360 | 2014-09-29 02:49:22 -0700 | [diff] [blame] | 21 | #include <unistd.h> |
| 22 | #include <string.h> |
| 23 | |
| 24 | #include "display.h" |
| 25 | |
| 26 | #define ESC 0x1B |
| 27 | |
| 28 | // default display |
| 29 | void Display::Output(const char * buf) |
| 30 | { |
| 31 | printf("%s", buf); |
| 32 | } |
| 33 | |
| 34 | // ansi console |
| 35 | AnsiConsole::AnsiConsole() : Display() |
| 36 | { |
| 37 | m_buf = NULL; |
| 38 | GetWindowSize(); |
| 39 | m_curX = 0; |
| 40 | m_curY = 0; |
| 41 | m_maxCurX = 0; |
| 42 | m_maxCurY = 0; |
| 43 | } |
| 44 | |
| 45 | AnsiConsole::~AnsiConsole() |
| 46 | { |
| 47 | delete [] m_buf; |
| 48 | } |
| 49 | |
| 50 | void AnsiConsole::GetWindowSize() |
| 51 | { |
| 52 | struct winsize winsz; |
| 53 | ioctl(STDOUT_FILENO, TIOCGWINSZ, &winsz); |
| 54 | if (m_numRows != winsz.ws_row || m_numCols != winsz.ws_col) |
| 55 | { |
| 56 | m_numRows = winsz.ws_row; |
| 57 | m_numCols = winsz.ws_col; |
| 58 | if (m_buf != NULL) |
| 59 | { |
| 60 | delete [] m_buf; |
| 61 | } |
| 62 | m_buf = new char[m_numRows * m_numCols]; |
| 63 | |
| 64 | Clear(); |
| 65 | } |
| 66 | } |
| 67 | |
| 68 | void AnsiConsole::Output(const char * buf) |
| 69 | { |
| 70 | char * p; |
| 71 | |
| 72 | while (m_curY < m_numRows && |
| 73 | m_numCols * m_curY + m_curX < m_numRows * m_numCols) |
| 74 | { |
| 75 | p = &(m_buf[m_numCols * m_curY + m_curX]); |
| 76 | |
| 77 | if (*buf == '\0') |
| 78 | { |
| 79 | break; |
| 80 | } |
| 81 | else if (*buf == '\n') |
| 82 | { |
| 83 | memset(p, ' ', m_numCols - m_curX); |
| 84 | m_curX = 0; |
| 85 | m_curY++; |
| 86 | } |
| 87 | else if (m_curX < m_numCols) |
| 88 | { |
| 89 | *p = *buf; |
| 90 | m_curX++; |
| 91 | } |
| 92 | buf++; |
| 93 | |
| 94 | if (m_maxCurX < m_curX) m_maxCurX = m_curX; |
| 95 | if (m_maxCurY < m_curY) m_maxCurY = m_curY; |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | void AnsiConsole::Clear() |
| 100 | { |
| 101 | printf("%c[2J", ESC); |
| 102 | } |
| 103 | |
| 104 | void AnsiConsole::Reflesh() |
| 105 | { |
| 106 | int i; |
| 107 | int j; |
| 108 | char * p; |
| 109 | |
| 110 | printf("%c[%d;%dH", ESC, 0, 0); |
| 111 | |
| 112 | for (j = 0; j < m_maxCurY; j++) |
| 113 | { |
| 114 | p = &(m_buf[m_numCols * j]); |
| 115 | |
| 116 | for (i = 0; i < m_maxCurX; i++) |
| 117 | { |
| 118 | putc(*p, stdout); |
| 119 | p++; |
| 120 | } |
| 121 | |
| 122 | putc('\n', stdout); |
| 123 | } |
| 124 | |
| 125 | GetWindowSize(); |
| 126 | m_curX = 0; |
| 127 | m_curY = 0; |
| 128 | m_maxCurX = 0; |
| 129 | m_maxCurY = 0; |
| 130 | } |