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module: components are written in the same style as events

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
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Stephen Gutekanst 2024-03-26 13:19:58 -07:00 • committed by Stephen Gutekanst
parent f50a27b83d
commit 7e0b9dde68
10 changed files with 265 additions and 123 deletions
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68
src/gfx/Text.zig
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@ -27,41 +27,55 @@ pub const Mod = mach.Mod(@This());
//
// TODO: allow user to specify projection matrix (3d-space flat text etc.)
pub const components = struct {
/// The ID of the pipeline this text belongs to. By default, zero.
///
/// This determines which shader, textures, etc. are used for rendering the text.
pub const pipeline = u8;
pub const components = .{
.{ .name = .pipeline, .type = u8, .description =
\\ The ID of the pipeline this text belongs to. By default, zero.
\\
\\ This determines which shader, textures, etc. are used for rendering the text.
},
/// The text model transformation matrix. Text is measured in pixel units, starting from
/// (0, 0) at the top-left corner and extending to the size of the text. By default, the world
/// origin (0, 0) lives at the center of the window.
pub const transform = Mat4x4;
.{ .name = .transform, .type = Mat4x4, .description =
\\ The text model transformation matrix. Text is measured in pixel units, starting from
\\ (0, 0) at the top-left corner and extending to the size of the text. By default, the world
\\ origin (0, 0) lives at the center of the window.
},
/// String segments of UTF-8 encoded text to render.
///
/// Expected to match the length of the style component.
pub const text = []const []const u8;
.{ .name = .text, .type = []const []const u8, .description =
\\ String segments of UTF-8 encoded text to render.
\\
\\ Expected to match the length of the style component.
},
/// The style to apply to each segment of text.
///
/// Expected to match the length of the text component.
pub const style = []const mach.ecs.EntityID;
.{ .name = .style, .type = []const mach.ecs.EntityID, .description =
\\ The style to apply to each segment of text.
\\
\\ Expected to match the length of the text component.
},
/// Style component: desired font to render text with.
pub const font_name = []const u8; // TODO: ship a default font
// TODO: ship a default font
.{ .name = .font_name, .type = []const u8, .description =
\\ Style component: desired font to render text with.
},
/// Style component: font size in pixels
pub const font_size = f32; // e.g. 12 * mach.gfx.px_per_pt // 12pt
// e.g. 12 * mach.gfx.px_per_pt // 12pt
.{ .name = .font_size, .type = f32, .description =
\\ Style component: font size in pixels
},
/// Style component: font weight
pub const font_weight = u16; // e.g. mach.gfx.font_weight_normal
// e.g. mach.gfx.font_weight_normal
.{ .name = .font_weight, .type = u16, .description =
\\ Style component: font weight
},
/// Style component: italic text
pub const italic = bool; // e.g. false
// e.g. false
.{ .name = .italic, .type = bool, .description =
\\ Style component: italic text
},
/// Style component: fill color
pub const color = Vec4; // e.g. vec4(0, 0, 0, 1.0),
// e.g. vec4(0, 0, 0, 1.0)
.{ .name = .color, .type = Vec4, .description =
\\ Style component: fill color
},
};
pub const events = .{