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font/sprite: add sflc supplement circle/ellipse glyphs

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This commit is contained in:
Qwerasd
2025-07-01 16:52:17 -06:00
parent ffe06f1ccd
commit 0cd95a791f
2 changed files with 93 additions and 38 deletions
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2
src/font/sprite/draw/symbols_for_legacy_computing.zig
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@@ -1367,7 +1367,7 @@ fn checkerboardFill(
}
}
fn circle(
pub fn circle(
metrics: font.Metrics,
canvas: *font.sprite.Canvas,
comptime position: Alignment,

129
src/font/sprite/draw/symbols_for_legacy_computing_supplement.zig
View File

@@ -61,6 +61,7 @@ const Shade = common.Shade;
const fill = common.fill;
const box = @import("box.zig");
const sflc = @import("symbols_for_legacy_computing.zig");
const font = @import("../../main.zig");
@@ -210,37 +211,37 @@ pub fn draw1CC30_1CC3F(
) !void {
switch (cp) {
// 𜰰 UPPER LEFT TWELFTH CIRCLE
0x1CC30 => try circlePiece(canvas, width, height, metrics, 0, 0, 2, 2),
0x1CC30 => try circlePiece(canvas, width, height, metrics, 0, 0, 2, 2, .tl),
// 𜰱 UPPER CENTRE LEFT TWELFTH CIRCLE
0x1CC31 => try circlePiece(canvas, width, height, metrics, 1, 0, 2, 2),
0x1CC31 => try circlePiece(canvas, width, height, metrics, 1, 0, 2, 2, .tl),
// 𜰲 UPPER CENTRE RIGHT TWELFTH CIRCLE
0x1CC32 => try circlePiece(canvas, width, height, metrics, 2, 0, 2, 2),
0x1CC32 => try circlePiece(canvas, width, height, metrics, 2, 0, 2, 2, .tr),
// 𜰳 UPPER RIGHT TWELFTH CIRCLE
0x1CC33 => try circlePiece(canvas, width, height, metrics, 3, 0, 2, 2),
0x1CC33 => try circlePiece(canvas, width, height, metrics, 3, 0, 2, 2, .tr),
// 𜰴 UPPER MIDDLE LEFT TWELFTH CIRCLE
0x1CC34 => try circlePiece(canvas, width, height, metrics, 0, 1, 2, 2),
0x1CC34 => try circlePiece(canvas, width, height, metrics, 0, 1, 2, 2, .tl),
// 𜰵 UPPER LEFT QUARTER CIRCLE
0x1CC35 => try circlePiece(canvas, width, height, metrics, 0, 0, 1, 1),
0x1CC35 => try circlePiece(canvas, width, height, metrics, 0, 0, 1, 1, .tl),
// 𜰶 UPPER RIGHT QUARTER CIRCLE
0x1CC36 => try circlePiece(canvas, width, height, metrics, 1, 0, 1, 1),
0x1CC36 => try circlePiece(canvas, width, height, metrics, 1, 0, 1, 1, .tr),
// 𜰷 UPPER MIDDLE RIGHT TWELFTH CIRCLE
0x1CC37 => try circlePiece(canvas, width, height, metrics, 3, 1, 2, 2),
0x1CC37 => try circlePiece(canvas, width, height, metrics, 3, 1, 2, 2, .tr),
// 𜰸 LOWER MIDDLE LEFT TWELFTH CIRCLE
0x1CC38 => try circlePiece(canvas, width, height, metrics, 0, 2, 2, 2),
0x1CC38 => try circlePiece(canvas, width, height, metrics, 0, 2, 2, 2, .bl),
// 𜰹 LOWER LEFT QUARTER CIRCLE
0x1CC39 => try circlePiece(canvas, width, height, metrics, 0, 1, 1, 1),
0x1CC39 => try circlePiece(canvas, width, height, metrics, 0, 1, 1, 1, .bl),
// 𜰺 LOWER RIGHT QUARTER CIRCLE
0x1CC3A => try circlePiece(canvas, width, height, metrics, 1, 1, 1, 1),
0x1CC3A => try circlePiece(canvas, width, height, metrics, 1, 1, 1, 1, .br),
// 𜰻 LOWER MIDDLE RIGHT TWELFTH CIRCLE
0x1CC3B => try circlePiece(canvas, width, height, metrics, 3, 2, 2, 2),
0x1CC3B => try circlePiece(canvas, width, height, metrics, 3, 2, 2, 2, .br),
// 𜰼 LOWER LEFT TWELFTH CIRCLE
0x1CC3C => try circlePiece(canvas, width, height, metrics, 0, 3, 2, 2),
0x1CC3C => try circlePiece(canvas, width, height, metrics, 0, 3, 2, 2, .bl),
// 𜰽 LOWER CENTRE LEFT TWELFTH CIRCLE
0x1CC3D => try circlePiece(canvas, width, height, metrics, 1, 3, 2, 2),
0x1CC3D => try circlePiece(canvas, width, height, metrics, 1, 3, 2, 2, .bl),
// 𜰾 LOWER CENTRE RIGHT TWELFTH CIRCLE
0x1CC3E => try circlePiece(canvas, width, height, metrics, 2, 3, 2, 2),
0x1CC3E => try circlePiece(canvas, width, height, metrics, 2, 3, 2, 2, .br),
// 𜰿 LOWER RIGHT TWELFTH CIRCLE
0x1CC3F => try circlePiece(canvas, width, height, metrics, 3, 3, 2, 2),
0x1CC3F => try circlePiece(canvas, width, height, metrics, 3, 3, 2, 2, .br),
else => unreachable,
}
}
@@ -285,6 +286,62 @@ pub fn draw1CC1B_1CC1E(
}
}
/// 𜸀 RIGHT HALF AND LEFT HALF WHITE CIRCLE
pub fn draw1CE00(
cp: u32,
canvas: *font.sprite.Canvas,
width: u32,
height: u32,
metrics: font.Metrics,
) !void {
_ = cp;
_ = width;
_ = height;
sflc.circle(metrics, canvas, .left, false);
sflc.circle(metrics, canvas, .right, false);
}
/// 𜸁 LOWER HALF AND UPPER HALF WHITE CIRCLE
pub fn draw1CE01(
cp: u32,
canvas: *font.sprite.Canvas,
width: u32,
height: u32,
metrics: font.Metrics,
) !void {
_ = cp;
_ = width;
_ = height;
sflc.circle(metrics, canvas, .top, false);
sflc.circle(metrics, canvas, .bottom, false);
}
/// 𜸋 LEFT HALF WHITE ELLIPSE
pub fn draw1CE0B(
cp: u32,
canvas: *font.sprite.Canvas,
width: u32,
height: u32,
metrics: font.Metrics,
) !void {
_ = cp;
try circlePiece(canvas, width, height, metrics, 0, 0, 1, 0.5, .tl);
try circlePiece(canvas, width, height, metrics, 0, 0, 1, 0.5, .bl);
}
/// 𜸌 RIGHT HALF WHITE ELLIPSE
pub fn draw1CE0C(
cp: u32,
canvas: *font.sprite.Canvas,
width: u32,
height: u32,
metrics: font.Metrics,
) !void {
_ = cp;
try circlePiece(canvas, width, height, metrics, 1, 0, 1, 0.5, .tr);
try circlePiece(canvas, width, height, metrics, 1, 0, 1, 0.5, .br);
}
pub fn draw1CE16_1CE19(
cp: u32,
canvas: *font.sprite.Canvas,
@@ -491,6 +548,7 @@ fn circlePiece(
y: f64,
w: f64,
h: f64,
corner: Corner,
) !void {
// Radius in pixels of the arc we need to draw.
const wdth: f64 = @as(f64, @floatFromInt(width)) * w;
@@ -516,9 +574,8 @@ fn circlePiece(
var path = canvas.staticPath(2);
if (xp < wdth) {
if (yp < hght) {
// Upper left arc.
switch (corner) {
.tl => {
path.moveTo(wdth - xp, ht - yp);
path.curveTo(
wdth - cw - xp,
@@ -528,8 +585,19 @@ fn circlePiece(
ht - xp,
hght - yp,
);
} else {
// Lower left arc.
},
.tr => {
path.moveTo(wdth - xp, ht - yp);
path.curveTo(
wdth + cw - xp,
ht - yp,
wdth * 2 - ht - xp,
hght - ch - yp,
wdth * 2 - ht - xp,
hght - yp,
);
},
.bl => {
path.moveTo(ht - xp, hght - yp);
path.curveTo(
ht - xp,
@@ -539,21 +607,8 @@ fn circlePiece(
wdth - xp,
hght * 2 - ht - yp,
);
}
} else {
if (yp < hght) {
// Upper right arc.
path.moveTo(wdth - xp, ht - yp);
path.curveTo(
wdth + cw - xp,
ht - yp,
wdth * 2 - ht - xp,
hght - ch - yp,
wdth * 2 - ht - xp,
hght - yp,
);
} else {
// Lower right arc.
},
.br => {
path.moveTo(wdth * 2 - ht - xp, hght - yp);
path.curveTo(
wdth * 2 - ht - xp,
@@ -563,7 +618,7 @@ fn circlePiece(
wdth - xp,
hght * 2 - ht - yp,
);
}
},
}
try canvas.strokePath(path.wrapped_path, .{