diff options
Diffstat (limited to 'src/tui')
| -rw-r--r-- | src/tui/terminal.cc | 71 |
1 files changed, 43 insertions, 28 deletions
diff --git a/src/tui/terminal.cc b/src/tui/terminal.cc index 8fdb585..75c6c1f 100644 --- a/src/tui/terminal.cc +++ b/src/tui/terminal.cc @@ -19,44 +19,59 @@ #include "ricochet/tui/terminal.hh" #include <cstdlib> #include <iostream> +#include <sys/ioctl.h> #include <unistd.h> namespace ricochet::tui { -Terminal::Terminal() { - // get terminal attributes - tcgetattr(STDIN_FILENO, &original_termios_); - - struct termios raw = original_termios_; - - // close echo, close canonical mode - // close terminal signals (ISIG disable Ctrl+C and Ctrl+Z, let the program handle it) - raw.c_lflag &= ~(ECHO | ICANON | ISIG); - - // close software flow control (Ctrl+S, Ctrl+Q) - raw.c_iflag &= ~(IXON | ICRNL); - - // apply new terminal attributes - tcsetattr(STDIN_FILENO, TCSAFLUSH, &raw); +Terminal::Terminal() +{ + // get terminal attributes + tcgetattr( STDIN_FILENO, &original_termios_ ); + + struct termios raw = original_termios_; + + // close echo, close canonical mode + // close terminal signals (ISIG disable Ctrl+C and Ctrl+Z, let the program handle it) + raw.c_lflag &= ~( ECHO | ICANON | ISIG ); + + // close software flow control (Ctrl+S, Ctrl+Q) + raw.c_iflag &= ~( IXON | ICRNL ); + + // apply new terminal attributes + tcsetattr( STDIN_FILENO, TCSAFLUSH, &raw ); +} + +Terminal::~Terminal() +{ + // RAII: restore terminal attributes when program exits + tcsetattr( STDIN_FILENO, TCSAFLUSH, &original_termios_ ); } -Terminal::~Terminal() { - // RAII: restore terminal attributes when program exits - tcsetattr(STDIN_FILENO, TCSAFLUSH, &original_termios_); +char Terminal::read_key() const // NOLINT(readability-convert-member-functions-to-static) +{ + char c = '\0'; + // read 1 byte + if ( read( STDIN_FILENO, &c, 1 ) == -1 ) { + return '\0'; + } + return c; } -char Terminal::read_key() const { // NOLINT(readability-convert-member-functions-to-static) - char c = '\0'; - // read 1 byte - if (read(STDIN_FILENO, &c, 1) == -1) { - return '\0'; - } - return c; +void Terminal::clear_screen() const // NOLINT(readability-convert-member-functions-to-static) +{ + // ANSI escape codes: \x1b[2J clear screen, \x1b[H move cursor to (1,1) + std::cout << "\x1b[2J\x1b[H"; } -void Terminal::clear_screen() const { // NOLINT(readability-convert-member-functions-to-static) - // ANSI escape codes: \x1b[2J clear screen, \x1b[H move cursor to (1,1) - std::cout << "\x1b[2J\x1b[H"; +std::pair<std::size_t, std::size_t> Terminal::get_size() // NOLINT(readability-convert-member-functions-to-static) + const +{ + struct winsize w {}; + if ( ioctl( STDOUT_FILENO, TIOCGWINSZ, &w ) == -1 ) { + return { 80, 24 }; + } + return { static_cast<std::size_t>( w.ws_col ), static_cast<std::size_t>( w.ws_row ) }; } } // namespace ricochet::tui
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