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patch 8.2.3524: GUI: ligatures are not used

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Problem:    GUI: ligatures are not used.
Solution:   Add the 'guiligatures' option. (Dusan Popovic, closes #8933)
This commit is contained in:
Dusan Popovic
2021-10-16 20:52:05 +01:00
committed by Bram Moolenaar
parent c89c91cafd
commit 4eeedc09fe
12 changed files with 239 additions and 14 deletions
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34
src/gui.c
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@@ -460,6 +460,10 @@ gui_init_check(void)
gui.scrollbar_width = gui.scrollbar_height = SB_DEFAULT_WIDTH;
gui.prev_wrap = -1;
# ifdef FEAT_GUI_GTK
CLEAR_FIELD(gui.ligatures_map);
#endif
#if defined(ALWAYS_USE_GUI) || defined(VIMDLL)
result = OK;
#else
@@ -1065,6 +1069,36 @@ gui_get_wide_font(void)
return OK;
}
#if defined(FEAT_GUI_GTK) || defined(PROTO)
/*
* Set list of ascii characters that combined can create ligature.
* Store them in char map for quick access from gui_gtk2_draw_string.
*/
void
gui_set_ligatures(void)
{
char_u *p;
if (*p_guiligatures != NUL)
{
// check for invalid characters
for (p = p_guiligatures; *p != NUL; ++p)
if (*p < 32 || *p > 127)
{
emsg(_(e_ascii_code_not_in_range));
return;
}
// store valid setting into ligatures_map
CLEAR_FIELD(gui.ligatures_map);
for (p = p_guiligatures; *p != NUL; ++p)
gui.ligatures_map[*p] = 1;
}
else
CLEAR_FIELD(gui.ligatures_map);
}
#endif
static void
gui_set_cursor(int row, int col)
{