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Merge pull request #1127 from vancluever/vancluever-powerline-trapezoid

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Powerline: add trapezoid rendering
This commit is contained in:
Mitchell Hashimoto
2023-12-19 12:34:28 -08:00
committed by GitHub
parent 469970b1e5 dfefe953fc
commit 5ab7d89112
2 changed files with 117 additions and 0 deletions
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2
src/font/sprite/Face.zig
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@ -181,6 +181,8 @@ const Kind = enum {
0xE0BA,
0xE0BC,
0xE0BE,
0xE0D2,
0xE0D4,
=> .powerline,
else => null,

115
src/font/sprite/Powerline.zig
View File

@ -11,6 +11,7 @@ const std = @import("std");
const Allocator = std.mem.Allocator;
const font = @import("../main.zig");
const Trapezoid = @import("canvas.zig").Trapezoid;
const log = std.log.scoped(.powerline_font);
@ -97,6 +98,11 @@ fn draw(self: Powerline, alloc: Allocator, canvas: *font.sprite.Canvas, cp: u32)
0xE0B6,
=> try self.draw_half_circle(alloc, canvas, cp),
// Mirrored top-down trapezoids
0xE0D2,
0xE0D4,
=> try self.draw_trapezoid_top_bottom(canvas, cp),
else => return error.InvalidCodepoint,
}
}
@ -397,6 +403,113 @@ fn draw_half_circle(self: Powerline, alloc: Allocator, canvas: *font.sprite.Canv
}
}
fn draw_trapezoid_top_bottom(self: Powerline, canvas: *font.sprite.Canvas, cp: u32) !void {
const t_top: Trapezoid = if (cp == 0xE0D4)
.{
.top = 0,
.bottom = @intCast(self.height / 2 - self.height / 20),
.left = .{
.p1 = .{
.x = 0,
.y = 0,
},
.p2 = .{
.x = @intCast(self.width - self.width / 3),
.y = @intCast(self.height / 2 - self.height / 20),
},
},
.right = .{
.p1 = .{
.x = @intCast(self.width),
.y = 0,
},
.p2 = .{
.x = @intCast(self.width),
.y = @intCast(self.height / 2 - self.height / 20),
},
},
}
else
.{
.top = 0,
.bottom = @intCast(self.height / 2 - self.height / 20),
.left = .{
.p1 = .{
.x = 0,
.y = 0,
},
.p2 = .{
.x = 0,
.y = @intCast(self.height / 2 - self.height / 20),
},
},
.right = .{
.p1 = .{
.x = @intCast(self.width),
.y = 0,
},
.p2 = .{
.x = @intCast(self.width / 3),
.y = @intCast(self.height / 2 - self.height / 20),
},
},
};
const t_bottom: Trapezoid = if (cp == 0xE0D4)
.{
.top = @intCast(self.height / 2 + self.height / 20),
.bottom = @intCast(self.height),
.left = .{
.p1 = .{
.x = @intCast(self.width - self.width / 3),
.y = @intCast(self.height / 2 + self.height / 20),
},
.p2 = .{
.x = 0,
.y = @intCast(self.height),
},
},
.right = .{
.p1 = .{
.x = @intCast(self.width),
.y = @intCast(self.height / 2 + self.height / 20),
},
.p2 = .{
.x = @intCast(self.width),
.y = @intCast(self.height),
},
},
}
else
.{
.top = @intCast(self.height / 2 + self.height / 20),
.bottom = @intCast(self.height),
.left = .{
.p1 = .{
.x = 0,
.y = @intCast(self.height / 2 + self.height / 20),
},
.p2 = .{
.x = 0,
.y = @intCast(self.height),
},
},
.right = .{
.p1 = .{
.x = @intCast(self.width / 3),
.y = @intCast(self.height / 2 + self.height / 20),
},
.p2 = .{
.x = @intCast(self.width),
.y = @intCast(self.height),
},
},
};
canvas.trapezoid(t_top);
canvas.trapezoid(t_bottom);
}
test "all" {
const testing = std.testing;
const alloc = testing.allocator;
@ -410,6 +523,8 @@ test "all" {
0xE0BE,
0xE0B4,
0xE0B6,
0xE0D2,
0xE0D4,
};
for (cps) |cp| {
var atlas_greyscale = try font.Atlas.init(alloc, 512, .greyscale);