initial commit

6 files changed, 102 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ee7098f
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+zig-out/
+zig-cache/
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..e24cac9
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "depends/xcb-zig"]
+	path = depends/xcb-zig
+	url = https://repo.dec05eba.com/xcb-zig
diff --git a/build.zig b/build.zig
new file mode 100644
index 0000000..63a7964
--- /dev/null
+++ b/build.zig
@@ -0,0 +1,34 @@
+const std = @import("std");
+
+pub fn build(b: *std.Build) void {
+    const target = b.standardTargetOptions(.{});
+    const optimize = b.standardOptimizeOption(.{});
+
+    const exe = b.addExecutable(.{
+        .name = "xcb-zig-example",
+        .root_source_file = .{ .path = "src/main.zig" },
+        .target = target,
+        .optimize = optimize,
+    });
+
+    const xcb_dep = b.anonymousDependency("depends/xcb-zig", @import("depends/xcb-zig/build.zig"), .{
+        .target = target,
+        .optimize = optimize,
+    });
+
+    exe.linkLibrary(xcb_dep.artifact("xcb-zig"));
+    exe.strip = optimize != std.builtin.OptimizeMode.Debug;
+    exe.want_lto = optimize != std.builtin.OptimizeMode.Debug;
+    exe.single_threaded = true;
+
+    b.installArtifact(exe);
+
+    const run_cmd = b.addRunArtifact(exe);
+    run_cmd.step.dependOn(b.getInstallStep());
+    if (b.args) |args| {
+        run_cmd.addArgs(args);
+    }
+
+    const run_step = b.step("run", "Run the app");
+    run_step.dependOn(&run_cmd.step);
+}
diff --git a/depends/xcb-zig b/depends/xcb-zig
new file mode 160000
+Subproject ae002920f8eb038ff3c4c5179967da524d2b36f
diff --git a/src/c.zig b/src/c.zig
new file mode 100644
index 0000000..395245b
--- /dev/null
+++ b/src/c.zig
@@ -0,0 +1,7 @@
+pub usingnamespace @cImport({
+    @cInclude("xcb/xcb.h");
+
+    // Add more define here if you want to include more keys. See depends/libxcb/depends/xorgproto/include/X11/keysymdef.h
+    @cDefine("XK_TECHNICAL", "");
+    @cInclude("X11/keysymdef.h");
+});
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diff --git a/src/main.zig b/src/main.zig
new file mode 100644
index 0000000..2c30db5
--- /dev/null
+++ b/src/main.zig
@@ -0,0 +1,56 @@
+const std = @import("std");
+const c = @import("c.zig");
+
+pub fn main() !void {
+    var mask: u32 = 0;
+    var values: [3]u32 = undefined;
+    const string = "hello, XCB!";
+
+    var rectangles = [_]c.xcb_rectangle_t{
+        .{ .x = 40, .y = 40, .width = 20, .height = 20 },
+    };
+
+    const conn = c.xcb_connect(null, null) orelse return error.FailedToConnectToXServer;
+    defer c.xcb_disconnect(conn);
+
+    const screen: *c.xcb_screen_t = @ptrCast(c.xcb_setup_roots_iterator(c.xcb_get_setup(conn)).data);
+
+    var foreground = c.xcb_generate_id(conn);
+    mask = c.XCB_GC_FOREGROUND | c.XCB_GC_GRAPHICS_EXPOSURES;
+    values[0] = screen.black_pixel;
+    values[1] = 0;
+    _ = c.xcb_create_gc(conn, foreground, screen.root, mask, @ptrCast(&values));
+
+    var background = c.xcb_generate_id(conn);
+    mask = c.XCB_GC_BACKGROUND | c.XCB_GC_GRAPHICS_EXPOSURES;
+    values[0] = screen.white_pixel;
+    values[1] = 0;
+    _ = c.xcb_create_gc(conn, background, screen.root, mask, @ptrCast(&values));
+
+    const win = c.xcb_generate_id(conn);
+    mask = c.XCB_CW_BACK_PIXEL | c.XCB_CW_WIN_GRAVITY | c.XCB_CW_EVENT_MASK;
+    values[0] = screen.white_pixel;
+    values[1] = c.XCB_GRAVITY_NORTH_WEST;
+    values[2] = c.XCB_EVENT_MASK_EXPOSURE | c.XCB_EVENT_MASK_KEY_PRESS;
+    _ = c.xcb_create_window(conn, c.XCB_COPY_FROM_PARENT, win, screen.root, 0, 0, 150, 150, 0, c.XCB_WINDOW_CLASS_INPUT_OUTPUT, screen.root_visual, mask, @ptrCast(&values));
+
+    _ = c.xcb_map_window(conn, win);
+    _ = c.xcb_flush(conn);
+
+    while (true) {
+        var e = c.xcb_wait_for_event(conn) orelse break;
+        defer std.c.free(e);
+        switch (e.*.response_type & ~@as(u8, 0x80)) {
+            c.XCB_EXPOSE => {
+                _ = c.xcb_clear_area(conn, 0, win, 0, 0, 0, 0);
+                _ = c.xcb_poly_rectangle(conn, win, foreground, 1, @ptrCast(&rectangles));
+                _ = c.xcb_image_text_8(conn, string.len, win, background, 20, 20, string);
+                _ = c.xcb_flush(conn);
+            },
+            c.XCB_KEY_PRESS => {
+                //break;
+            },
+            else => {},
+        }
+    }
+}
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