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config: add boolean option tweak.pua-double-width

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When enabled, PUA (Private Usage Area) codepoints are always treated
as double-width glyphs, regardless of the actual glyph width.

Requires allow-overflowing-double-width-glyphs=yes
This commit is contained in:
Daniel Eklöf 2021-05-31 17:10:05 +02:00
parent d458d46f81
commit 4c954be7a6
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GPG key ID: 5BBD4992C116573F
5 changed files with 35 additions and 8 deletions
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18
render.c
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@ -499,9 +499,9 @@ render_cell(struct terminal *term, pixman_image_t *pix,
const struct fcft_glyph *glyph = NULL;
const struct composed *composed = NULL;
if (cell->wc != 0) {
wchar_t base = cell->wc;
wchar_t base = cell->wc;
if (base != 0) {
if (base >= CELL_COMB_CHARS_LO &&
base < (CELL_COMB_CHARS_LO + term->composed_count))
{
@ -576,11 +576,15 @@ render_cell(struct terminal *term, pixman_image_t *pix,
* - *this* cells is followed by an empty cell, or a space
*/
if (term->conf->tweak.allow_overflowing_double_width_glyphs &&
glyph != NULL &&
glyph->cols == 1 &&
glyph->width >= term->cell_width * 15 / 10 &&
glyph->width < 3 * term->cell_width &&
col < term->cols - 1 &&
((glyph != NULL &&
glyph->cols == 1 &&
glyph->width >= term->cell_width * 15 / 10 &&
glyph->width < 3 * term->cell_width &&
col < term->cols - 1) ||
(term->conf->tweak.pua_double_width &&
((base >= 0x00e000 && base <= 0x00f8ff) ||
(base >= 0x0f0000 && base <= 0x0ffffd) ||
(base >= 0x100000 && base <= 0x10fffd)))) &&
(row->cells[col + 1].wc == 0 || row->cells[col + 1].wc == L' '))
{
cell_cols = 2;