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Detect missing ANSI support on Windows

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This commit is contained in:
Lior Halphon 2021-10-30 16:03:33 +03:00
parent 1f7b20251b
commit fd8c9bba5d
1 changed files with 29 additions and 7 deletions
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36
SDL/console.c
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@ -83,17 +83,41 @@ static listent_t *reverse_find(listent_t *entry, const char *string, bool exact)
static bool is_term(void) static bool is_term(void)
{ {
if (!isatty(STDIN_FILENO) || !isatty(STDOUT_FILENO)) return false;
#ifdef _WIN32 #ifdef _WIN32
if (AllocConsole()) { if (AllocConsole()) {
FreeConsole(); FreeConsole();
return false; return false;
} }
unsigned long input_mode, output_mode;
GetConsoleMode(GetStdHandle(STD_INPUT_HANDLE), &input_mode);
GetConsoleMode(GetStdHandle(STD_OUTPUT_HANDLE), &output_mode);
SetConsoleMode(GetStdHandle(STD_INPUT_HANDLE), ENABLE_VIRTUAL_TERMINAL_INPUT);
SetConsoleMode(GetStdHandle(STD_OUTPUT_HANDLE), ENABLE_WRAP_AT_EOL_OUTPUT | ENABLE_PROCESSED_OUTPUT | ENABLE_VIRTUAL_TERMINAL_PROCESSING);
CONSOLE_SCREEN_BUFFER_INFO before = {0,};
GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &before);
printf(SGR("0"));
CONSOLE_SCREEN_BUFFER_INFO after = {0,};
GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &after);
SetConsoleMode(GetStdHandle(STD_INPUT_HANDLE), input_mode);
SetConsoleMode(GetStdHandle(STD_OUTPUT_HANDLE), output_mode);
if (before.dwCursorPosition.X != after.dwCursorPosition.X ||
before.dwCursorPosition.Y != after.dwCursorPosition.Y) {
printf("\r \r");
return false;
}
return true;
#else
return getenv("TERM");
#endif #endif
return isatty(STDIN_FILENO) && isatty(STDOUT_FILENO)
#ifndef _WIN32
&& getenv("TERM")
#endif
;
} }
static unsigned width, height; static unsigned width, height;
@ -779,7 +803,6 @@ mainloop(char *(*completer)(const char *substring, uintptr_t *context))
complete_context = completion_length = 0; complete_context = completion_length = 0;
break; break;
default: default:
printf("Unsupported extended key %x\n", c);
printf("\a"); printf("\a");
break; break;
} }
@ -809,7 +832,6 @@ mainloop(char *(*completer)(const char *substring, uintptr_t *context))
complete_context = completion_length = 0; complete_context = completion_length = 0;
} }
else { else {
printf("Unsupported key %x\n", c);
printf("\a"); printf("\a");
} }
break; break;