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windows: add invert ANSI (7 / 27) emulation

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JD Ballard 2014-04-20 21:32:36 -06:00 committed by Saúl Ibarra Corretgé
parent 21b1b87d12
commit e56717ae98
1 changed files with 36 additions and 1 deletions
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37
src/win/tty.c
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@ -1117,6 +1117,14 @@ static int uv_tty_clear(uv_tty_t* handle, int dir, char entire_screen,
return 0;
}
#define FLIP_FGBG \
do { \
WORD fg = info.wAttributes & 0xF; \
WORD bg = info.wAttributes & 0xF0; \
info.wAttributes &= 0xFF00; \
info.wAttributes |= fg << 4; \
info.wAttributes |= bg >> 4; \
} while (0)
static int uv_tty_set_style(uv_tty_t* handle, DWORD* error) {
unsigned short argc = handle->ansi_csi_argc;
@ -1126,6 +1134,7 @@ static int uv_tty_set_style(uv_tty_t* handle, DWORD* error) {
char fg_color = -1, bg_color = -1;
char fg_bright = -1, bg_bright = -1;
char inverse = -1;
if (argc == 0) {
/* Reset mode */
@ -1133,6 +1142,7 @@ static int uv_tty_set_style(uv_tty_t* handle, DWORD* error) {
bg_color = 0;
fg_bright = 0;
bg_bright = 0;
inverse = 0;
}
for (i = 0; i < argc; i++) {
@ -1144,6 +1154,7 @@ static int uv_tty_set_style(uv_tty_t* handle, DWORD* error) {
bg_color = 0;
fg_bright = 0;
bg_bright = 0;
inverse = 0;
} else if (arg == 1) {
/* Foreground bright on */
@ -1158,6 +1169,10 @@ static int uv_tty_set_style(uv_tty_t* handle, DWORD* error) {
/* Background bright on */
bg_bright = 1;
} else if (arg == 7) {
/* Inverse: on */
inverse = 1;
} else if (arg == 21 || arg == 22) {
/* Foreground bright off */
fg_bright = 0;
@ -1166,6 +1181,10 @@ static int uv_tty_set_style(uv_tty_t* handle, DWORD* error) {
/* Background bright off */
bg_bright = 0;
} else if (arg == 27) {
/* Inverse: off */
inverse = 0;
} else if (arg >= 30 && arg <= 37) {
/* Set foreground color */
fg_color = arg - 30;
@ -1198,7 +1217,7 @@ static int uv_tty_set_style(uv_tty_t* handle, DWORD* error) {
}
if (fg_color == -1 && bg_color == -1 && fg_bright == -1 &&
bg_bright == -1) {
bg_bright == -1 && inverse == -1) {
/* Nothing changed */
return 0;
}
@ -1208,6 +1227,10 @@ static int uv_tty_set_style(uv_tty_t* handle, DWORD* error) {
return -1;
}
if ((info.wAttributes & COMMON_LVB_REVERSE_VIDEO) > 0) {
FLIP_FGBG;
}
if (fg_color != -1) {
info.wAttributes &= ~(FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE);
if (fg_color & 1) info.wAttributes |= FOREGROUND_RED;
@ -1238,6 +1261,18 @@ static int uv_tty_set_style(uv_tty_t* handle, DWORD* error) {
}
}
if (inverse != -1) {
if (inverse) {
info.wAttributes |= COMMON_LVB_REVERSE_VIDEO;
} else {
info.wAttributes &= ~COMMON_LVB_REVERSE_VIDEO;
}
}
if ((info.wAttributes & COMMON_LVB_REVERSE_VIDEO) > 0) {
FLIP_FGBG;
}
if (!SetConsoleTextAttribute(handle->handle, info.wAttributes)) {
*error = GetLastError();
return -1;