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terminal: only clear wide spacer head if wide char is not on first line

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This commit is contained in:
Mitchell Hashimoto
2022-12-14 21:39:45 -08:00
parent 8534e5a186
commit 6f451f22bb
1 changed files with 13 additions and 1 deletions
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14
src/terminal/Terminal.zig
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@ -672,7 +672,7 @@ fn printCell(self: *Terminal, unmapped_c: u21) *Screen.Cell {
const spacer_cell = row.getCellPtr(x);
spacer_cell.attrs.wide_spacer_tail = false;
if (self.screen.cursor.x <= 1) {
if (self.screen.cursor.y > 0 and self.screen.cursor.x <= 1) {
self.clearWideSpacerHead();
}
} else if (cell.attrs.wide_spacer_tail) {
@ -1415,6 +1415,18 @@ test "Terminal: zero-width character at start" {
try testing.expectEqual(@as(usize, 0), t.screen.cursor.x);
}
test "Terminal: print over wide char at 0,0" {
var t = try init(testing.allocator, 80, 80);
defer t.deinit(testing.allocator);
try t.print(0x1F600); // Smiley face
t.setCursorPos(0, 0);
try t.print('A'); // Smiley face
try testing.expectEqual(@as(usize, 0), t.screen.cursor.y);
try testing.expectEqual(@as(usize, 1), t.screen.cursor.x);
}
test "Terminal: soft wrap" {
var t = try init(testing.allocator, 3, 80);
defer t.deinit(testing.allocator);