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Create initial version of TagOverlay

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It's an almost one-to-one clone of Leon Plickat's river-tag-overlay.
Right now, it's not wired up, so it doesn't do anything yet.
This commit is contained in:
Ben Buhse 2026-02-15 20:30:59 -06:00
commit 2c642d6cfc
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5 changed files with 386 additions and 15 deletions
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44
src/Buffer.zig
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@ -84,15 +84,55 @@ pub fn deinit(buffer: *Buffer) void {
// We have to do this later because of the way init() works
pub fn setListener(buffer: *Buffer) void {
buffer.wl_buffer.setListener(*Buffer, buffer_listener, buffer);
buffer.wl_buffer.setListener(*Buffer, bufferListener, buffer);
}
fn buffer_listener(_: *wl.Buffer, event: wl.Buffer.Event, buffer: *Buffer) void {
fn bufferListener(_: *wl.Buffer, event: wl.Buffer.Event, buffer: *Buffer) void {
switch (event) {
.release => buffer.busy = false,
}
}
pub fn borderedRectangle(
buffer: Buffer,
x: u31,
y: u31,
width: u31,
height: u31,
border_width: u31,
scale: u31,
background_color: *const pixman.Color,
border_color: *const pixman.Color,
) void {
const render_x: i16 = @intCast(x * scale);
const render_y: i16 = @intCast(y * scale);
const render_width: u16 = @intCast(width * scale);
const render_height: u16 = @intCast(height * scale);
const render_border_width: u16 = @intCast(border_width * scale);
// Background fill
_ = pixman.Image.fillRectangles(.src, buffer.image, background_color, 1, &[1]pixman.Rectangle16{.{ .x = render_x, .y = render_y, .width = render_width, .height = render_height }});
// Border: top, bottom, left, right
_ = pixman.Image.fillRectangles(.src, buffer.image, border_color, 4, &[4]pixman.Rectangle16{
.{
.x = render_x,
.y = render_y,
.width = render_width,
.height = render_border_width,
},
.{
.x = render_x,
.y = render_y + @as(i16, @intCast(render_height -
render_border_width)),
.width = render_width,
.height = render_border_width,
},
.{ .x = render_x, .y = render_y + @as(i16, @intCast(render_border_width)), .width = render_border_width, .height = render_height - 2 * render_border_width },
.{ .x = render_x + @as(i16, @intCast(render_width - render_border_width)), .y = render_y + @as(i16, @intCast(render_border_width)), .width = render_border_width, .height = render_height - 2 * render_border_width },
});
}
const std = @import("std");
const builtin = @import("builtin");
const mem = std.mem;