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More box chars

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Kovid Goyal
2024-12-22 15:38:25 +05:30
parent 7bd0b46a71
commit a726e4af90
1 changed files with 33 additions and 0 deletions
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33
kitty/decorations.c
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@@ -1185,6 +1185,27 @@ commit(Canvas *self, Edge lines, bool solid) {
if (!solid) draw_circle(self, scale, thickness(self, level, true), true);
}
// thin and fat line levels
static const uint t = 1, f = 3;
static void
corner(Canvas *self, uint hlevel, uint vlevel, Corner which) {
half_hline(self, hlevel, which & RIGHT_EDGE, thickness(self, vlevel, true) / 2);
half_vline(self, vlevel, which & BOTTOM_EDGE, 0);
}
static void
cross(Canvas *self, uint which) {
static const uint level_map[16][4] = {
{t, t, t, t}, {f, t, t, t}, {t, f, t, t}, {f, f, t, t}, {t, t, f, t}, {t, t, t, f}, {t, t, f, f},
{f, t, f, t}, {t, f, f, t}, {f, t, t, f}, {t, f, t, f}, {f, f, f, t}, {f, f, t, f}, {f, t, f, f},
{t, f, f, f}, {f, f, f, f}
};
const uint *m = level_map[which];
half_hline(self, m[0], false, 0); half_hline(self, m[1], true, 0);
half_vline(self, m[2], false, 0); half_vline(self, m[3], true, 0);
}
void
render_box_char(char_type ch, uint8_t *buf, unsigned width, unsigned height, double dpi_x, double dpi_y) {
Canvas canvas = {.mask=buf, .width = width, .height = height, .dpi={.x=dpi_x, .y=dpi_y}, .supersample_factor=1u}, ss = canvas;
@@ -1197,6 +1218,7 @@ render_box_char(char_type ch, uint8_t *buf, unsigned width, unsigned height, dou
#define SS(ch, ...) SB(ch, __VA_ARGS__); break
#define C(ch, func, ...) CC(ch, func(c, __VA_ARGS__))
#define S(ch, func, ...) SS(ch, func(c, __VA_ARGS__))
START_ALLOW_CASE_RANGE
switch(ch) {
default: log_error("Unknown box drawing character: U+%x rendered as blank", ch); break;
@@ -1512,9 +1534,20 @@ render_box_char(char_type ch, uint8_t *buf, unsigned width, unsigned height, dou
P(L'', LEFT_EDGE | RIGHT_EDGE | TOP_EDGE);
P(L'', LEFT_EDGE | RIGHT_EDGE | TOP_EDGE | BOTTOM_EDGE);
#undef P
#define Q(ch, which) C(ch, corner, t, t, which); C(ch + 1, corner, f, t, which); C(ch + 2, corner, t, f, which); C(ch + 3, corner, f, f, which);
Q(L'┌', BOTTOM_RIGHT); Q(L'┐', BOTTOM_LEFT); Q(L'└', TOP_RIGHT); Q(L'┘', TOP_LEFT);
#undef Q
S(L'╭', rounded_corner, 1, TOP_LEFT);
S(L'╮', rounded_corner, 1, TOP_RIGHT);
S(L'╰', rounded_corner, 1, BOTTOM_LEFT);
S(L'╯', rounded_corner, 1, BOTTOM_RIGHT);
case L'┼' ... L'┼' + 15: cross(c, ch - L'┼');
}
free(canvas.holes); free(canvas.y_limits);
free(ss.holes); free(ss.y_limits);
END_ALLOW_CASE_RANGE
#undef CC
#undef SS
#undef C