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Enable use of higher options for underlining text.

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In `Colored and styled underlines` it's proposed that the SGR codes
\e[4:4m and \e[4:5m are used to add a dotted or dashed underline to the
rendering context respectively. This commit prepares the necessary
changes to add the two additional underline style, while still rendering
them as a normal underline and curly underline.
This commit is contained in:
Joseph Adams 2022-01-13 17:27:02 +01:00
parent ecf4fcdeb0
commit a2c4f830b3
5 changed files with 8 additions and 8 deletions
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4
kitty/cell_vertex.glsl
View File

@ -79,8 +79,8 @@ const uint COLOR_MASK = uint(0x4000);
const uint ZERO = uint(0);
const uint ONE = uint(1);
const uint TWO = uint(2);
const uint THREE = uint(3);
const uint FOUR = uint(4);
const uint SEVEN = uint(7);
vec3 color_to_vec(uint c) {
uint r, g, b;
@ -193,7 +193,7 @@ void main() {
foreground = choose_color(float(is_selected & ONE), selection_color, foreground);
decoration_fg = choose_color(float(is_selected & ONE), selection_color, decoration_fg);
// Underline and strike through (rendered via sprites)
underline_pos = choose_color(in_url, to_sprite_pos(pos, url_style, ZERO, ZERO), to_sprite_pos(pos, (text_attrs >> DECORATION_SHIFT) & THREE, ZERO, ZERO));
underline_pos = choose_color(in_url, to_sprite_pos(pos, url_style, ZERO, ZERO), to_sprite_pos(pos, (text_attrs >> DECORATION_SHIFT) & SEVEN, ZERO, ZERO));
strike_pos = to_sprite_pos(pos, ((text_attrs >> STRIKE_SHIFT) & ONE) * FOUR, ZERO, ZERO);
// Cursor

4
kitty/cursor.c
View File

@ -90,7 +90,7 @@ START_ALLOW_CASE_RANGE
case 3:
self->italic = true; break;
case 4:
if (i < count) { self->decoration = MIN(3, params[i]); i++; }
if (i < count) { self->decoration = MIN(5, params[i]); i++; }
else self->decoration = 1;
break;
case 7:
@ -161,7 +161,7 @@ apply_sgr_to_cells(GPUCell *first_cell, unsigned int cell_count, int *params, un
S(italic, true);
case 4: {
uint8_t val = 1;
if (i < count) { val = MIN(3, params[i]); i++; }
if (i < count) { val = MIN(5, params[i]); i++; }
S(decoration, val);
}
case 7:

2
kitty/data-types.h
View File

@ -142,7 +142,7 @@ typedef struct {
typedef union CellAttrs {
struct {
uint16_t width : 2;
uint16_t decoration : 2;
uint16_t decoration : 3;
uint16_t bold : 1;
uint16_t italic : 1;
uint16_t reverse : 1;

4
kitty/fonts/render.py
View File

@ -313,7 +313,7 @@ def render_special(
t = underline_thickness
if underline > 1:
t = max(1, min(cell_height - underline_position - 1, t))
dl([add_line, add_line, add_dline, add_curl][underline], underline_position, t, cell_height)
dl([add_line, add_line, add_dline, add_curl, add_line, add_curl][underline], underline_position, t, cell_height)
if strikethrough:
dl(add_line, strikethrough_position, strikethrough_thickness, cell_height)
@ -384,7 +384,7 @@ def prerender_function(
render_cursor, cursor_beam_thickness=cursor_beam_thickness,
cursor_underline_thickness=cursor_underline_thickness, cell_width=cell_width,
cell_height=cell_height, dpi_x=dpi_x, dpi_y=dpi_y)
cells = f(1), f(2), f(3), f(0, True), f(missing=True), c(1), c(2), c(3)
cells = f(1), f(2), f(3), f(4), f(5), f(0, True), f(missing=True), c(1), c(2), c(3)
return tuple(map(ctypes.addressof, cells)), cells

2
kitty/shaders.c
View File

@ -314,7 +314,7 @@ cell_update_uniform_block(ssize_t vao_idx, Screen *screen, int uniform_buffer, c
}
rd->use_cell_for_selection_bg = IS_SPECIAL_COLOR(highlight_bg) ? 1. : 0.;
// Cursor position
enum { BLOCK_IDX = 0, BEAM_IDX = 6, UNDERLINE_IDX = 7, UNFOCUSED_IDX = 8 };
enum { BLOCK_IDX = 0, BEAM_IDX = 8, UNDERLINE_IDX = 9, UNFOCUSED_IDX = 10 };
if (cursor->is_visible) {
rd->cursor_x = screen->cursor->x, rd->cursor_y = screen->cursor->y;
if (cursor->is_focused) {