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ime: render pre-edit text

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This is done by allocating cells for the pre-edit text when receiving
the text-input::done() call, and populating them by converting the
utf-8 formatted pre-edit text to wchars.

We also convert the pre-edit cursor position to cell positions (it can
cover multiple cells).

When rendering, we simply render the pre-edit cells on-top off the
regular grid. While doing so, we also mark the underlying, “real”,
cells as dirty, to ensure they are re-rendered when the pre-edit text
is modified or removed.
This commit is contained in:
Daniel Eklöf 2020-12-02 18:52:50 +01:00
parent 5745c610ac
commit 8c3d48c5cd
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GPG key ID: 5BBD4992C116573F
8 changed files with 364 additions and 60 deletions
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9
terminal.c
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@ -1403,6 +1403,8 @@ term_destroy(struct terminal *term)
tll_free(term->alt.sixel_images);
sixel_fini(term);
free(term->ime.preedit.cells);
free(term->foot_exe);
free(term->cwd);
@ -2216,6 +2218,13 @@ term_kbd_focus_out(struct terminal *term)
if (it->item.kbd_focus == term)
return;
if (term->ime.preedit.cells != NULL) {
free(term->ime.preedit.cells);
term->ime.preedit.cells = NULL;
term->ime.preedit.count = 0;
render_refresh(term);
}
term->kbd_focus = false;
cursor_refresh(term);