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more glyphs for the glyph god

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This commit is contained in:
Mitchell Hashimoto
2022-11-24 10:00:57 -08:00
parent 6e30238d36
commit fc8f36a59e
1 changed files with 141 additions and 9 deletions
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150
src/font/BoxFont.zig
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@ -1,6 +1,14 @@
//! This file contains functions for drawing the box drawing characters
//! (https://en.wikipedia.org/wiki/Box-drawing_character) and related
//! characters that are provided by the terminal.
//!
//! The box drawing logic is based off similar logic in Kitty and Foot.
//! The primary drawing code was ported directly and slightly modified from Foot
//! (https://codeberg.org/dnkl/foot/). Foot is licensed under the MIT
//! license and is copyright 2019 Daniel Eklöf.
//!
//! The modifications made are primarily around spacing, DPI calculations,
//! and adapting the code to our atlas model.
const BoxFont = @This();
const std = @import("std");
@ -42,7 +50,7 @@ const Thickness = enum {
fn height(self: Thickness, base: u32) u32 {
return switch (self) {
.light => base,
.heavy => base * 3,
.heavy => base * 2,
};
}
};
@ -140,14 +148,14 @@ fn draw(self: BoxFont, img: *pixman.Image, cp: u32) !void {
0x2505 => self.draw_box_drawings_heavy_triple_dash_horizontal(img),
0x2506 => self.draw_box_drawings_light_triple_dash_vertical(img),
0x2507 => self.draw_box_drawings_heavy_triple_dash_vertical(img),
// 0x2508 => self.draw_box_drawings_light_quadruple_dash_horizontal(img),
// 0x2509 => self.draw_box_drawings_heavy_quadruple_dash_horizontal(img),
// 0x250a => self.draw_box_drawings_light_quadruple_dash_vertical(img),
// 0x250b => self.draw_box_drawings_heavy_quadruple_dash_vertical(img),
// 0x250c => self.draw_box_drawings_light_down_and_right(img),
// 0x250d => self.draw_box_drawings_down_light_and_right_heavy(img),
// 0x250e => self.draw_box_drawings_down_heavy_and_right_light(img),
// 0x250f => self.draw_box_drawings_heavy_down_and_right(img),
0x2508 => self.draw_box_drawings_light_quadruple_dash_horizontal(img),
0x2509 => self.draw_box_drawings_heavy_quadruple_dash_horizontal(img),
0x250a => self.draw_box_drawings_light_quadruple_dash_vertical(img),
0x250b => self.draw_box_drawings_heavy_quadruple_dash_vertical(img),
0x250c => self.draw_box_drawings_light_down_and_right(img),
0x250d => self.draw_box_drawings_down_light_and_right_heavy(img),
0x250e => self.draw_box_drawings_down_heavy_and_right_light(img),
0x250f => self.draw_box_drawings_heavy_down_and_right(img),
else => return error.InvalidCodepoint,
}
}
@ -204,6 +212,62 @@ fn draw_box_drawings_heavy_triple_dash_vertical(self: BoxFont, img: *pixman.Imag
);
}
fn draw_box_drawings_light_quadruple_dash_horizontal(self: BoxFont, img: *pixman.Image) void {
self.draw_box_drawings_dash_horizontal(
img,
4,
Thickness.light.height(self.thickness),
@max(4, Thickness.light.height(self.thickness)),
);
}
fn draw_box_drawings_heavy_quadruple_dash_horizontal(self: BoxFont, img: *pixman.Image) void {
self.draw_box_drawings_dash_horizontal(
img,
4,
Thickness.heavy.height(self.thickness),
@max(4, Thickness.light.height(self.thickness)),
);
}
fn draw_box_drawings_light_quadruple_dash_vertical(self: BoxFont, img: *pixman.Image) void {
self.draw_box_drawings_dash_vertical(
img,
4,
Thickness.light.height(self.thickness),
@max(4, Thickness.light.height(self.thickness)),
);
}
fn draw_box_drawings_heavy_quadruple_dash_vertical(self: BoxFont, img: *pixman.Image) void {
self.draw_box_drawings_dash_vertical(
img,
4,
Thickness.heavy.height(self.thickness),
@max(4, Thickness.light.height(self.thickness)),
);
}
fn draw_box_drawings_light_down_and_right(self: BoxFont, img: *pixman.Image) void {
self.hline_middle_right(img, .light, .light);
self.vline_middle_down(img, .light, .light);
}
fn draw_box_drawings_down_light_and_right_heavy(self: BoxFont, img: *pixman.Image) void {
self.hline_middle_right(img, .light, .heavy);
self.vline_middle_down(img, .light, .light);
}
fn draw_box_drawings_down_heavy_and_right_light(self: BoxFont, img: *pixman.Image) void {
self.hline_middle_right(img, .light, .light);
self.vline_middle_down(img, .heavy, .light);
}
fn draw_box_drawings_heavy_down_and_right(self: BoxFont, img: *pixman.Image) void {
self.hline_middle_right(img, .heavy, .heavy);
self.vline_middle_down(img, .heavy, .heavy);
}
fn draw_box_drawings_dash_horizontal(
self: BoxFont,
img: *pixman.Image,
@ -341,11 +405,79 @@ fn vline_middle(self: BoxFont, img: *pixman.Image, thickness: Thickness) void {
self.vline(img, 0, self.height, (self.width - thick_px) / 2, thick_px);
}
fn vline_middle_up(
self: BoxFont,
img: *pixman.Image,
vthickness: Thickness,
hthickness: Thickness,
) void {
const hthick_px = hthickness.height(self.thickness);
const vthick_px = vthickness.height(self.thickness);
self.vline(
img,
0,
(self.height + hthick_px) / 2,
(self.width - vthick_px) / 2,
vthick_px,
);
}
fn vline_middle_down(
self: BoxFont,
img: *pixman.Image,
vthickness: Thickness,
hthickness: Thickness,
) void {
const hthick_px = hthickness.height(self.thickness);
const vthick_px = vthickness.height(self.thickness);
self.vline(
img,
(self.height - hthick_px) / 2,
self.height,
(self.width - vthick_px) / 2,
vthick_px,
);
}
fn hline_middle(self: BoxFont, img: *pixman.Image, thickness: Thickness) void {
const thick_px = thickness.height(self.thickness);
self.hline(img, 0, self.width, (self.height - thick_px) / 2, thick_px);
}
fn hline_middle_left(
self: BoxFont,
img: *pixman.Image,
vthickness: Thickness,
hthickness: Thickness,
) void {
const hthick_px = hthickness.height(self.thickness);
const vthick_px = vthickness.height(self.thickness);
self.hline(
img,
0,
(self.width + vthick_px) / 2,
(self.height - hthick_px) / 2,
hthick_px,
);
}
fn hline_middle_right(
self: BoxFont,
img: *pixman.Image,
vthickness: Thickness,
hthickness: Thickness,
) void {
const hthick_px = hthickness.height(self.thickness);
const vthick_px = vthickness.height(self.thickness);
self.hline(
img,
(self.width - vthick_px) / 2,
self.width,
(self.height - hthick_px) / 2,
hthick_px,
);
}
fn vline(
self: BoxFont,
img: *pixman.Image,