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Implement updateWindowSize
for Windows
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parent
beb3c2bc7a
commit
53f0c44d6c
2 changed files with 13 additions and 6 deletions
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@ -4,6 +4,8 @@
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#if _WIN32
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# include <io.h>
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# define WIN32_LEAN_AND_MEAN
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# include <windows.h>
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# define isatty _isatty
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#else
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# include <sys/ioctl.h>
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@ -97,17 +99,26 @@ std::string filterANSIEscapes(std::string_view s, bool filterAll, unsigned int w
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static Sync<std::pair<unsigned short, unsigned short>> windowSize{{0, 0}};
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#ifndef _WIN32
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void updateWindowSize()
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{
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#ifndef _WIN32
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struct winsize ws;
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if (ioctl(2, TIOCGWINSZ, &ws) == 0) {
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auto windowSize_(windowSize.lock());
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windowSize_->first = ws.ws_row;
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windowSize_->second = ws.ws_col;
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}
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#else
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CONSOLE_SCREEN_BUFFER_INFO info;
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// From https://stackoverflow.com/a/12642749
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if (GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &info) != 0) {
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auto windowSize_(windowSize.lock());
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// From https://github.com/libuv/libuv/blob/v1.48.0/src/win/tty.c#L1130
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windowSize_->first = info.srWindow.Bottom - info.srWindow.Top + 1;
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windowSize_->second = info.dwSize.X;
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}
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#endif
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}
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#endif
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std::pair<unsigned short, unsigned short> getWindowSize()
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@ -21,16 +21,12 @@ std::string filterANSIEscapes(std::string_view s,
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bool filterAll = false,
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unsigned int width = std::numeric_limits<unsigned int>::max());
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#ifndef _WIN32
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/**
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* Recalculate the window size, updating a global variable. Used in the
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* `SIGWINCH` signal handler.
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*/
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void updateWindowSize();
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#endif
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/**
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* @return the number of rows and columns of the terminal.
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*
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