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font/sprite: reduce uneven gaps in dotted underline

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This commit is contained in:
Qwerasd
2024-09-23 19:41:49 -06:00
parent c7d6227bef
commit 49a3008919
1 changed files with 5 additions and 4 deletions
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9
src/font/sprite/underline.zig
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@ -102,14 +102,15 @@ fn drawDotted(alloc: Allocator, width: u32, thickness: u32) !struct { font.sprit
var canvas = try font.sprite.Canvas.init(alloc, width, height); var canvas = try font.sprite.Canvas.init(alloc, width, height);
const dot_width = @max(thickness, 3); const dot_width = @max(thickness, 3);
const dot_count = width / dot_width; const dot_count = @max((width / dot_width) / 2, 1);
const gap_width = try std.math.divCeil(u32, width -| (dot_count * dot_width), dot_count);
var i: u32 = 0; var i: u32 = 0;
while (i < dot_count) : (i += 2) { while (i < dot_count) : (i += 1) {
// Ensure we never go out of bounds for the rect // Ensure we never go out of bounds for the rect
const x = @min(i * dot_width, width - 1); const x = @min(i * (dot_width + gap_width), width - 1);
const rect_width = @min(width - x, dot_width); const rect_width = @min(width - x, dot_width);
canvas.rect(.{ canvas.rect(.{
.x = @intCast(i * dot_width), .x = @intCast(x),
.y = 0, .y = 0,
.width = rect_width, .width = rect_width,
.height = thickness, .height = thickness,