this repo has no description
render: use provided character width
As a pretty large optimization, use the provided width when possible to
avoid measuring glyphs each render
Signed-off-by: Tim Culverhouse <tim@timculverhouse.com>
+10
-2
+4
src/cell.zig
+4
src/cell.zig
···
6
6
7
7
pub const Character = struct {
8
8
grapheme: []const u8 = " ",
9
+
/// width should only be provided when the application is sure the terminal
10
+
/// will meeasure the same width. This can be ensure by using the gwidth method
11
+
/// included in libvaxis. If width is 0, libvaxis will measure the glyph at
12
+
/// render time
9
13
width: usize = 1,
10
14
};
11
15
+6
-2
src/vaxis.zig
+6
-2
src/vaxis.zig
···
294
294
const cell = self.screen.buf[i];
295
295
defer {
296
296
// advance by the width of this char mod 1
297
-
const method: gwidth.Method = if (self.caps.unicode) .unicode else .wcwidth;
298
-
const w = gwidth.gwidth(cell.char.grapheme, method) catch 1;
297
+
const w = blk: {
298
+
if (cell.char.width != 0) break :blk cell.char.width;
299
+
300
+
const method: gwidth.Method = if (self.caps.unicode) .unicode else .wcwidth;
301
+
break :blk gwidth.gwidth(cell.char.grapheme, method) catch 1;
302
+
};
299
303
var j = i + 1;
300
304
while (j < i + w) : (j += 1) {
301
305
self.screen_last.buf[j].skipped = true;