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Handle skipped characters with erase line (EL) instead of insert blank (ICH)

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insert blank seems to behave differently between terminals and would
be less efficient because it still has to shift all following characters
(that we will overwrite anyway).

Fixes #3437
This commit is contained in:
Maxime Coste 2020-03-30 19:49:35 +11:00
parent b0dcb07540
commit 72271ce529
1 changed files with 11 additions and 11 deletions
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22
src/terminal_ui.cc
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@ -271,25 +271,25 @@ void TerminalUI::Screen::output(bool force)
printf("\033[%dH", line + 1);
ColumnCount pending_move = 0;
for (auto& atom : lines[line++].atoms)
for (auto& [text, skip, face] : lines[line++].atoms)
{
if (text.empty() and skip == 0)
continue;
if (pending_move != 0)
{
printf("\033[%dC", (int)pending_move);
pending_move = 0;
}
set_face(atom.face);
fputs(atom.text.c_str(), stdout);
if (atom.skip > 0)
set_face(face);
fputs(text.c_str(), stdout);
if (skip > 3 and face.attributes == Attribute{})
{
if (atom.skip > 4 and atom.face.attributes == Attribute{})
{
printf("\033[%d@", (int)atom.skip);
pending_move = atom.skip;
}
else for (ColumnCount c = 0; c < atom.skip; ++c)
fputs(" ", stdout);
fputs("\033[K", stdout);
pending_move = skip;
}
else if (skip > 0)
fputs(String{' ', skip}.c_str(), stdout);
}
}
}