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tui: add support for undercurl and underline color

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Fixes https://github.com/neovim/neovim/issues/7479.
This commit is contained in:
Daniel Hahler 2018-09-25 21:23:22 +02:00
parent 3999aa755e
commit c4006a621e
2 changed files with 49 additions and 12 deletions
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7
runtime/doc/syntax.txt
View File

@ -4665,8 +4665,8 @@ cterm={attr-list} *attr-list* *highlight-cterm* *E418*
Note that "bold" can be used here and by using a bold font. They
have the same effect.
If running in a terminal, "undercurl" acts as an alias for "underline".
It is set using |highlight-guisp|.
"undercurl" falls back to "underline" in a terminal that does not
support it. The color is set using |highlight-guisp|.
start={term-list} *highlight-start* *E422*
stop={term-list} *term-list* *highlight-stop*
@ -4799,7 +4799,8 @@ guifg={color-name} *highlight-guifg*
guibg={color-name} *highlight-guibg*
guisp={color-name} *highlight-guisp*
These give the foreground (guifg), background (guibg) and special
(guisp) color to use in the GUI. "guisp" is used for undercurl.
(guisp) color to use in the GUI. "guisp" is used for undercurl
and underline.
There are a few special names:
NONE no color (transparent)
bg use normal background color

54
src/nvim/tui/tui.c
View File

@ -118,6 +118,7 @@ typedef struct {
int resize_screen;
int reset_scroll_region;
int set_cursor_style, reset_cursor_style;
int enter_undercurl_mode, exit_undercurl_mode, set_underline_color;
} unibi_ext;
} TUIData;
@ -438,15 +439,16 @@ static void sigwinch_cb(SignalWatcher *watcher, int signum, void *data)
static bool attrs_differ(HlAttrs a1, HlAttrs a2, bool rgb)
{
if (rgb) {
// TODO(bfredl): when we start to support special color,
// rgb_sp_color must be added here
return a1.rgb_fg_color != a2.rgb_fg_color
|| a1.rgb_bg_color != a2.rgb_bg_color
|| a1.rgb_ae_attr != a2.rgb_ae_attr;
|| a1.rgb_ae_attr != a2.rgb_ae_attr
|| a1.rgb_sp_color != a2.rgb_sp_color;
} else {
return a1.cterm_fg_color != a2.cterm_fg_color
|| a1.cterm_bg_color != a2.cterm_bg_color
|| a1.cterm_ae_attr != a2.cterm_ae_attr;
|| a1.cterm_ae_attr != a2.cterm_ae_attr
|| (a1.cterm_ae_attr & (HL_UNDERLINE|HL_UNDERCURL)
&& a1.rgb_sp_color != a2.rgb_sp_color);
}
}
@ -483,13 +485,21 @@ static void update_attrs(UI *ui, HlAttrs attrs)
bool italic = attr & HL_ITALIC;
bool reverse = attr & HL_INVERSE;
bool standout = attr & HL_STANDOUT;
bool underline = attr & HL_UNDERLINE;
bool undercurl = attr & HL_UNDERCURL;
bool underline;
bool undercurl;
if (data->unibi_ext.enter_undercurl_mode) {
underline = attr & HL_UNDERLINE;
undercurl = attr & HL_UNDERCURL;
} else {
underline = (attr & HL_UNDERLINE) || (attr & HL_UNDERCURL);
undercurl = false;
}
if (unibi_get_str(data->ut, unibi_set_attributes)) {
if (bold || reverse || underline || undercurl || standout) {
if (bold || reverse || underline || standout) {
UNIBI_SET_NUM_VAR(data->params[0], standout);
UNIBI_SET_NUM_VAR(data->params[1], underline || undercurl);
UNIBI_SET_NUM_VAR(data->params[1], underline);
UNIBI_SET_NUM_VAR(data->params[2], reverse);
UNIBI_SET_NUM_VAR(data->params[3], 0); // blink
UNIBI_SET_NUM_VAR(data->params[4], 0); // dim
@ -508,7 +518,7 @@ static void update_attrs(UI *ui, HlAttrs attrs)
if (bold) {
unibi_out(ui, unibi_enter_bold_mode);
}
if (underline || undercurl) {
if (underline) {
unibi_out(ui, unibi_enter_underline_mode);
}
if (standout) {
@ -521,6 +531,18 @@ static void update_attrs(UI *ui, HlAttrs attrs)
if (italic) {
unibi_out(ui, unibi_enter_italics_mode);
}
if (undercurl && data->unibi_ext.enter_undercurl_mode) {
unibi_out_ext(ui, data->unibi_ext.enter_undercurl_mode);
}
if ((undercurl || underline) && data->unibi_ext.set_underline_color) {
int color = attrs.rgb_sp_color;
if (color != -1) {
UNIBI_SET_NUM_VAR(data->params[0], (color >> 16) & 0xff); // red
UNIBI_SET_NUM_VAR(data->params[1], (color >> 8) & 0xff); // green
UNIBI_SET_NUM_VAR(data->params[2], color & 0xff); // blue
unibi_out_ext(ui, data->unibi_ext.set_underline_color);
}
}
if (ui->rgb) {
if (fg != -1) {
UNIBI_SET_NUM_VAR(data->params[0], (fg >> 16) & 0xff); // red
@ -1817,6 +1839,20 @@ static void augment_terminfo(TUIData *data, const char *term,
ut, "ext.enable_mouse", "\x1b[?1002h\x1b[?1006h");
data->unibi_ext.disable_mouse = (int)unibi_add_ext_str(
ut, "ext.disable_mouse", "\x1b[?1002l\x1b[?1006l");
if ((int)unibi_add_ext_bool(ut, "Su", 0)) {
data->unibi_ext.enter_undercurl_mode = (int)unibi_add_ext_str(
ut, "ext.enter_undercurl_mode", "\x1b[4:3m");
data->unibi_ext.exit_undercurl_mode = (int)unibi_add_ext_str(
ut, "ext.exit_underline_mode", "\x1b[4:0m");
if (has_colon_rgb) {
data->unibi_ext.set_underline_color = (int)unibi_add_ext_str(
ut, "ext.set_underline_color", "\x1b[58:2:%p1%d:%p2%d:%p3%dm");
} else {
data->unibi_ext.set_underline_color = (int)unibi_add_ext_str(
ut, "ext.set_underline_color", "\x1b[58:2:%p1%d:%p2%d:%p3%dm");
}
}
}
static void flush_buf(UI *ui)