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xcb: sample-driven ziggification

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This commit is contained in:
Szymon Nowakowski
2026-08-31 03:10:09 +02:00
parent 0f6d1a0842
commit 08217a0256
2 changed files with 1670 additions and 720 deletions
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80
packages/xcb/sample/root.zig
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@@ -1,83 +1,75 @@
const std = @import("std"); const std = @import("std");
const xcb = @import("xcb"); const xcb = @import("xcb");
const WM_PROTOCOLS = "WM_PROTOCOLS";
const WM_DELETE_WINDOW = "WM_DELETE_WINDOW";
pub fn main(init: std.process.Init) !void { pub fn main(init: std.process.Init) !void {
_ = init; _ = init;
const connection = xcb.import.xcb_connect(null, null); const connection = xcb.Connection.connect(null, null);
defer xcb.import.xcb_disconnect(connection); defer connection.disconnect();
{ {
const res = xcb.import.xcb_connection_has_error(connection); const error_code = connection.hasError();
if (res != 0) { if (error_code != 0) {
std.debug.print("Error: xcb_connection_has_error returned {}", .{res}); std.debug.print("Error: xcb_connection_has_error returned {}", .{error_code});
return error.XcbConnection; return error.XcbConnection;
} }
} }
const screen = xcb.import.xcb_setup_roots_iterator(xcb.import.xcb_get_setup(connection)).data.?; const setup = connection.getSetup();
const screen = setup.rootsIterator().data;
const mask: xcb.Cw = .{ const window = @as(xcb.Window, @enumFromInt(connection.generateId()));
.BACK_PIXEL = true, _ = connection.createWindow(
.EVENT_MASK = true,
};
const values = [_]u32{
screen.white_pixel,
@bitCast(xcb.EventMask{
.KEY_PRESS = true,
}),
};
const window: xcb.Window = @enumFromInt(xcb.import.xcb_generate_id(connection));
_ = xcb.import.xcb_create_window(
connection,
xcb.COPY_FROM_PARENT, xcb.COPY_FROM_PARENT,
window, window,
screen.root, screen.root,
10, 0,
10, 0,
640, 640,
480, 360,
1, 1,
@intFromEnum(xcb.WindowClass.INPUT_OUTPUT), .INPUT_OUTPUT,
screen.root_visual, screen.root_visual,
@bitCast(mask), .{
&values, .BACK_PIXEL = true,
},
&[_]u32{
screen.black_pixel,
},
); );
const wm_protocols_atom_cookie = xcb.import.xcb_intern_atom(connection, 1, WM_PROTOCOLS.len, WM_PROTOCOLS); const wm_protocols_atom_cookie = connection.internAtom(true, "WM_PROTOCOLS");
const wm_delete_window_atom_cookie = xcb.import.xcb_intern_atom(connection, 0, WM_DELETE_WINDOW.len, WM_DELETE_WINDOW); const wm_delete_window_atom_cookie = connection.internAtom(false, "WM_DELETE_WINDOW");
const wm_protocols_atom_reply: *xcb.InternAtomReply = xcb.import.xcb_intern_atom_reply(connection, wm_protocols_atom_cookie, null) orelse return error.XcbInternAtom; const wm_protocols_atom_reply = connection.internAtomReply(wm_protocols_atom_cookie, null) orelse return error.XcbInternAtom;
const wm_delete_window_atom_reply: *xcb.InternAtomReply = xcb.import.xcb_intern_atom_reply(connection, wm_delete_window_atom_cookie, null) orelse return error.XcbInternAtom; defer std.c.free(wm_protocols_atom_reply);
const wm_protocols_atom = wm_protocols_atom_reply.atom;
_ = xcb.import.xcb_change_property( const wm_delete_window_atom_reply = connection.internAtomReply(wm_delete_window_atom_cookie, null) orelse return error.XcbInternAtom;
connection, defer std.c.free(wm_delete_window_atom_reply);
@intFromEnum(xcb.PropMode.REPLACE), const wm_delete_window_atom = wm_delete_window_atom_reply.atom;
_ = connection.changeProperty(
.REPLACE,
window, window,
wm_protocols_atom_reply.atom, wm_protocols_atom,
.ATOM, .ATOM,
32, 32,
1, 1,
&wm_delete_window_atom_reply.atom, &wm_delete_window_atom,
); );
_ = xcb.import.xcb_map_window(connection, window); _ = connection.mapWindow(window);
_ = xcb.import.xcb_flush(connection); _ = connection.flush();
var running = true; var running = true;
while (running) { while (running) {
const maybe_event: ?*xcb.GenericEvent = xcb.import.xcb_wait_for_event(connection); if (connection.waitForEvent()) |event| {
if (maybe_event) |event| {
defer std.c.free(event); defer std.c.free(event);
switch (event.response_type & ~@as(u8, 0x80)) { switch (event.response_type & ~@as(u8, 0x80)) {
xcb.CLIENT_MESSAGE => { xcb.CLIENT_MESSAGE => {
const client_message_event: *xcb.ClientMessageEvent = @ptrCast(event); const client_message_event = @as(*xcb.ClientMessageEvent, @ptrCast(event));
if (client_message_event.data.data32[0] == @intFromEnum(wm_delete_window_atom_reply.atom)) { if (client_message_event.data.data32[0] == @intFromEnum(wm_delete_window_atom_reply.atom)) {
running = false; running = false;
} }

2310
packages/xcb/src/root.zig
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