Create a basic 24h clock

Cargo.lock

@@ -2,18 +2,60 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "adler"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
+
+[[package]]
+name = "adler32"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aae1277d39aeec15cb388266ecc24b11c80469deae6067e17a1a7aa9e5c1f234"
+
+[[package]]
+name = "arrayref"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a4c527152e37cf757a3f78aae5a06fbeefdb07ccc535c980a3208ee3060dd544"
+
+[[package]]
+name = "arrayvec"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "23b62fc65de8e4e7f52534fb52b0f3ed04746ae267519eef2a83941e8085068b"
+
+[[package]]
+name = "arrayvec"
+version = "0.7.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8da52d66c7071e2e3fa2a1e5c6d088fec47b593032b254f5e980de8ea54454d6"
+
 [[package]]
 name = "autocfg"
 version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
 
+[[package]]
+name = "base64"
+version = "0.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "904dfeac50f3cdaba28fc6f57fdcddb75f49ed61346676a78c4ffe55877802fd"
+
 [[package]]
 name = "bitflags"
 version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
+[[package]]
+name = "bytemuck"
+version = "1.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cdead85bdec19c194affaeeb670c0e41fe23de31459efd1c174d049269cf02cc"
+
 [[package]]
 name = "calloop"
 version = "0.9.3"
@@ -36,6 +78,52 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
+[[package]]
+name = "chrono"
+version = "0.4.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "670ad68c9088c2a963aaa298cb369688cf3f9465ce5e2d4ca10e6e0098a1ce73"
+dependencies = [
+ "libc",
+ "num-integer",
+ "num-traits",
+ "time",
+ "winapi",
+]
+
+[[package]]
+name = "color_quant"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3d7b894f5411737b7867f4827955924d7c254fc9f4d91a6aad6b097804b1018b"
+
+[[package]]
+name = "crc32fast"
+version = "1.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b540bd8bc810d3885c6ea91e2018302f68baba2129ab3e88f32389ee9370880d"
+dependencies = [
+ "cfg-if",
+]
+
+[[package]]
+name = "data-url"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3a30bfce702bcfa94e906ef82421f2c0e61c076ad76030c16ee5d2e9a32fe193"
+dependencies = [
+ "matches",
+]
+
+[[package]]
+name = "deflate"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c86f7e25f518f4b81808a2cf1c50996a61f5c2eb394b2393bd87f2a4780a432f"
+dependencies = [
+ "adler32",
+]
+
 [[package]]
 name = "dlib"
 version = "0.5.0"
@@ -51,6 +139,70 @@ version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9ea835d29036a4087793836fa931b08837ad5e957da9e23886b29586fb9b6650"
 
+[[package]]
+name = "flate2"
+version = "1.0.23"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b39522e96686d38f4bc984b9198e3a0613264abaebaff2c5c918bfa6b6da09af"
+dependencies = [
+ "cfg-if",
+ "crc32fast",
+ "libc",
+ "miniz_oxide",
+]
+
+[[package]]
+name = "float-cmp"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "98de4bbd547a563b716d8dfa9aad1cb19bfab00f4fa09a6a4ed21dbcf44ce9c4"
+
+[[package]]
+name = "fontconfig-parser"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "82cea2adebf32a9b104b8ffb308b5fb3b456f04cc76c294c3c85025c8a5d75f4"
+dependencies = [
+ "roxmltree",
+]
+
+[[package]]
+name = "fontdb"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "122fa73a5566372f9df09768a16e8e3dad7ad18abe07835f1f0b71f84078ba4c"
+dependencies = [
+ "fontconfig-parser",
+ "log",
+ "memmap2 0.5.3",
+ "ttf-parser",
+]
+
+[[package]]
+name = "gif"
+version = "0.11.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c3a7187e78088aead22ceedeee99779455b23fc231fe13ec443f99bb71694e5b"
+dependencies = [
+ "color_quant",
+ "weezl",
+]
+
+[[package]]
+name = "jpeg-decoder"
+version = "0.2.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9478aa10f73e7528198d75109c8be5cd7d15fb530238040148d5f9a22d4c5b3b"
+
+[[package]]
+name = "kurbo"
+version = "0.8.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a53776d271cfb873b17c618af0298445c88afc52837f3e948fa3fafd131f449"
+dependencies = [
+ "arrayvec 0.7.2",
+]
+
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
@@ -82,6 +234,12 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "matches"
+version = "0.1.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a3e378b66a060d48947b590737b30a1be76706c8dd7b8ba0f2fe3989c68a853f"
+
 [[package]]
 name = "memchr"
 version = "2.5.0"
@@ -97,6 +255,15 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "memmap2"
+version = "0.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "057a3db23999c867821a7a59feb06a578fcb03685e983dff90daf9e7d24ac08f"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "memoffset"
 version = "0.6.5"
@@ -112,6 +279,15 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "68354c5c6bd36d73ff3feceb05efa59b6acb7626617f4962be322a825e61f79a"
 
+[[package]]
+name = "miniz_oxide"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d2b29bd4bc3f33391105ebee3589c19197c4271e3e5a9ec9bfe8127eeff8f082"
+dependencies = [
+ "adler",
+]
+
 [[package]]
 name = "nix"
 version = "0.22.3"
@@ -135,18 +311,55 @@ dependencies = [
  "minimal-lexical",
 ]
 
+[[package]]
+name = "num-integer"
+version = "0.1.45"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "225d3389fb3509a24c93f5c29eb6bde2586b98d9f016636dff58d7c6f7569cd9"
+dependencies = [
+ "autocfg",
+ "num-traits",
+]
+
+[[package]]
+name = "num-traits"
+version = "0.2.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "578ede34cf02f8924ab9447f50c28075b4d3e5b269972345e7e0372b38c6cdcd"
+dependencies = [
+ "autocfg",
+]
+
 [[package]]
 name = "once_cell"
 version = "1.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "87f3e037eac156d1775da914196f0f37741a274155e34a0b7e427c35d2a2ecb9"
 
+[[package]]
+name = "pico-args"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "db8bcd96cb740d03149cbad5518db9fd87126a10ab519c011893b1754134c468"
+
 [[package]]
 name = "pkg-config"
 version = "0.3.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "58893f751c9b0412871a09abd62ecd2a00298c6c83befa223ef98c52aef40cbe"
 
+[[package]]
+name = "png"
+version = "0.17.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc38c0ad57efb786dd57b9864e5b18bae478c00c824dc55a38bbc9da95dde3ba"
+dependencies = [
+ "bitflags",
+ "crc32fast",
+ "deflate",
+ "miniz_oxide",
+]
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.36"
@@ -165,12 +378,94 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "rctree"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ae028b272a6e99d9f8260ceefa3caa09300a8d6c8d2b2001316474bc52122e9"
+
+[[package]]
+name = "resvg"
+version = "0.22.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2e702d1e8e00a3a0717b96244cba840f34f542d8f23097c8903266c4e2975658"
+dependencies = [
+ "gif",
+ "jpeg-decoder",
+ "log",
+ "pico-args",
+ "png",
+ "rgb",
+ "svgfilters",
+ "svgtypes",
+ "tiny-skia",
+ "usvg",
+]
+
+[[package]]
+name = "rgb"
+version = "0.8.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e74fdc210d8f24a7dbfedc13b04ba5764f5232754ccebfdf5fff1bad791ccbc6"
+dependencies = [
+ "bytemuck",
+]
+
+[[package]]
+name = "roxmltree"
+version = "0.14.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "921904a62e410e37e215c40381b7117f830d9d89ba60ab5236170541dd25646b"
+dependencies = [
+ "xmlparser",
+]
+
+[[package]]
+name = "rustybuzz"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "25ff94f20221325d000e552781713e53b0d85c1d9551b6f420d12daf5a08eace"
+dependencies = [
+ "bitflags",
+ "bytemuck",
+ "smallvec",
+ "ttf-parser",
+ "unicode-bidi-mirroring",
+ "unicode-ccc",
+ "unicode-general-category",
+ "unicode-script",
+]
+
+[[package]]
+name = "safe_arch"
+version = "0.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c1ff3d6d9696af502cc3110dacce942840fb06ff4514cad92236ecc455f2ce05"
+dependencies = [
+ "bytemuck",
+]
+
 [[package]]
 name = "scoped-tls"
 version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ea6a9290e3c9cf0f18145ef7ffa62d68ee0bf5fcd651017e586dc7fd5da448c2"
 
+[[package]]
+name = "simplecss"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a11be7c62927d9427e9f40f3444d5499d868648e2edbc4e2116de69e7ec0e89d"
+dependencies = [
+ "log",
+]
+
+[[package]]
+name = "siphasher"
+version = "0.3.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7bd3e3206899af3f8b12af284fafc038cc1dc2b41d1b89dd17297221c5d225de"
+
 [[package]]
 name = "smallvec"
 version = "1.8.0"
@@ -188,7 +483,7 @@ dependencies = [
  "dlib",
  "lazy_static",
  "log",
- "memmap2",
+ "memmap2 0.3.1",
  "nix",
  "pkg-config",
  "wayland-client",
@@ -196,12 +491,137 @@ dependencies = [
  "wayland-protocols",
 ]
 
+[[package]]
+name = "svg"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e72d8b19ab05827afefcca66bf47040c1e66a0901eb814784c77d4ec118bd309"
+
+[[package]]
+name = "svgfilters"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "639abcebc15fdc2df179f37d6f5463d660c1c79cd552c12343a4600827a04bce"
+dependencies = [
+ "float-cmp",
+ "rgb",
+]
+
+[[package]]
+name = "svgtypes"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dabb3eb59a457c56d5282ab4545609e2cc382b41f6af239bb8d59a7267ef94b3"
+dependencies = [
+ "siphasher",
+]
+
+[[package]]
+name = "time"
+version = "0.1.44"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6db9e6914ab8b1ae1c260a4ae7a49b6c5611b40328a735b21862567685e73255"
+dependencies = [
+ "libc",
+ "wasi",
+ "winapi",
+]
+
+[[package]]
+name = "tiny-skia"
+version = "0.6.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1bcfd4339bdd4545eabed74b208f2f1555f2e6540fb58135c01f46c0940aa138"
+dependencies = [
+ "arrayref",
+ "arrayvec 0.5.2",
+ "bytemuck",
+ "cfg-if",
+ "png",
+ "safe_arch",
+]
+
+[[package]]
+name = "ttf-parser"
+version = "0.15.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c74c96594835e10fa545e2a51e8709f30b173a092bfd6036ef2cec53376244f3"
+
+[[package]]
+name = "unicode-bidi"
+version = "0.3.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "099b7128301d285f79ddd55b9a83d5e6b9e97c92e0ea0daebee7263e932de992"
+
+[[package]]
+name = "unicode-bidi-mirroring"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "56d12260fb92d52f9008be7e4bca09f584780eb2266dc8fecc6a192bec561694"
+
+[[package]]
+name = "unicode-ccc"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cc2520efa644f8268dce4dcd3050eaa7fc044fca03961e9998ac7e2e92b77cf1"
+
+[[package]]
+name = "unicode-general-category"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "07547e3ee45e28326cc23faac56d44f58f16ab23e413db526debce3b0bfd2742"
+
+[[package]]
+name = "unicode-script"
+version = "0.5.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "58dd944fd05f2f0b5c674917aea8a4df6af84f2d8de3fe8d988b95d28fb8fb09"
+
+[[package]]
+name = "unicode-vo"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b1d386ff53b415b7fe27b50bb44679e2cc4660272694b7b6f3326d8480823a94"
+
 [[package]]
 name = "unicode-xid"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
 
+[[package]]
+name = "usvg"
+version = "0.22.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a261d60a7215fa339482047cc3dafd4e22e2bf34396aaebef2b707355bbb39c0"
+dependencies = [
+ "base64",
+ "data-url",
+ "flate2",
+ "float-cmp",
+ "fontdb",
+ "kurbo",
+ "log",
+ "pico-args",
+ "rctree",
+ "roxmltree",
+ "rustybuzz",
+ "simplecss",
+ "siphasher",
+ "svgtypes",
+ "ttf-parser",
+ "unicode-bidi",
+ "unicode-script",
+ "unicode-vo",
+ "xmlwriter",
+]
+
+[[package]]
+name = "wasi"
+version = "0.10.0+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a143597ca7c7793eff794def352d41792a93c481eb1042423ff7ff72ba2c31f"
+
 [[package]]
 name = "wayland-client"
 version = "0.29.4"
@@ -275,6 +695,12 @@ dependencies = [
  "pkg-config",
 ]
 
+[[package]]
+name = "weezl"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c97e489d8f836838d497091de568cf16b117486d529ec5579233521065bd5e4"
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -301,7 +727,12 @@ checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 name = "wl-seasonal-hours-clock"
 version = "0.1.0"
 dependencies = [
+ "chrono",
+ "resvg",
  "smithay-client-toolkit",
+ "svg",
+ "tiny-skia",
+ "usvg",
 ]
 
 [[package]]
@@ -318,3 +749,15 @@ name = "xml-rs"
 version = "0.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d2d7d3948613f75c98fd9328cfdcc45acc4d360655289d0a7d4ec931392200a3"
+
+[[package]]
+name = "xmlparser"
+version = "0.13.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "114ba2b24d2167ef6d67d7d04c8cc86522b87f490025f39f0303b7db5bf5e3d8"
+
+[[package]]
+name = "xmlwriter"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ec7a2a501ed189703dba8b08142f057e887dfc4b2cc4db2d343ac6376ba3e0b9"

Cargo.toml

@@ -5,3 +5,8 @@ edition = "2021"
 
 [dependencies]
 smithay-client-toolkit = "0.15"
+chrono = "0.4"
+svg = "0.10"
+usvg = "0.22"
+tiny-skia = "0.6"
+resvg = "0.22"

src/main.rs

@@ -1,13 +1,93 @@
 extern crate smithay_client_toolkit as sctk;
 
+use std::time::SystemTime;
+
+use chrono::Timelike;
+use chrono::prelude::Local;
 use sctk::reexports::client::protocol::{wl_shm, wl_surface};
 use sctk::shm::AutoMemPool;
 use sctk::window::{Event as WEvent, FallbackFrame};
+use svg::Document;
+use svg::node::Text as TextNode;
+use svg::node::element::{Group, Line, Rectangle, Style, Text};
 
 sctk::default_environment!(SeasonalClock, desktop);
 
+fn seconds_to_degrees(seconds: i32) -> f32 {
+    seconds as f32 * 360.0 / 86400.0
+}
+
+fn time_to_degrees(
+    timestamp: i32  // should be time/timestamp
+) -> f32 {
+    seconds_to_degrees(timestamp)
+}
+
+fn gen_svg() -> Document {
+    // These should be calculated
+    let local_timestamp = Local::now();
+    let local_time = local_timestamp.time().num_seconds_from_midnight() as i32;
+
+    // TODO: These should be calculated instead of hardcoded
+    let image_width = 700u32;
+    let local_hour_font_size = 16.5;
+    let hour_name_font_size = 13.37699;
+    let outer_r = (image_width as f32) / 2.0 - 3.0 * hour_name_font_size;
+    let ring_width = hour_name_font_size * 3.0;
+    let border = Rectangle::new()
+        .set("x", 0i32)
+        .set("y", 0i32)
+        .set("width", 700i32)
+        .set("height", 700i32)
+        .set("id", "border");
+    let stylesheet = Style::new("\
+        #border {stroke: none; fill: rgb(19, 17, 30); }
+        .local-hour {stroke: none; fill: rgb(238, 187, 85);}
+        .dial {stroke-width: 2px; stroke: rgb(238, 187, 85);}");
+    let mut local_clock = Group::new()
+        .set("id", "local-clock");
+
+    for hour in 0i32..24 {
+        let hour_str = match hour {
+            0 => "Midnight".to_string(),
+            12 => "Noon".to_string(),
+            _ => hour.to_string(),
+        };
+        let rotation = hour * 15;
+        let hour_name = TextNode::new(hour_str);
+        let hour_node = Text::new()
+            .set("class", "local-hour")
+            .set("transform", format!("rotate({}, 350, 350)", 180 + rotation))
+            .set("x", (image_width as f32) / 2.0)
+            .set("y", (image_width as f32) / 2.0 - outer_r - local_hour_font_size / 2.0)
+            .set("text-anchor", "middle")
+            .set("font-size", local_hour_font_size as f32)
+            .add(hour_name);
+        local_clock = local_clock.add(hour_node);
+    }
+
+    let dial = Line::new()
+        .set("id", "dial")
+        .set("class", "dial")
+        .set("transform", format!("rotate({}, {}, {})", time_to_degrees(local_time), image_width / 2, image_width / 2))
+        .set("x1", image_width / 2)
+        .set("y1", image_width as f32 / 2.0 + outer_r * 0.5)
+        .set("x2", image_width / 2)
+        .set("y2", image_width as f32 / 2.0 + outer_r - ring_width + hour_name_font_size);
+
+    Document::new()
+        .set("viewBox", (0i32, 0i32, 700i32, 700i32))
+        .set("width", 700i32)
+        .set("height", 700i32)
+        .set("xmlns:xlink", "http://www.w3.org/1999/xlink")
+        .add(stylesheet)
+        .add(border)
+        .add(local_clock)
+        .add(dial)
+}
+
 fn main() {
-    let (env, _display, mut queue) = sctk::new_default_environment!(SeasonalClock, desktop)
+    let (env, display, mut queue) = sctk::new_default_environment!(SeasonalClock, desktop)
         .expect("Unable to connect to a Wayland compositor");
 
     let surface = env
@@ -44,7 +124,7 @@ fn main() {
 
     let mut pool = env.create_auto_pool().expect("Failed to create the memory pool.");
     let mut need_redraw = false;
-    let mut dimensions = (100, 100);
+    let mut dimensions = (700, 700);
 
     if !env.get_shell().unwrap().needs_configure() {
         redraw(&mut pool, window.surface(), dimensions)
@@ -52,7 +132,25 @@ fn main() {
         window.refresh()
     }
 
+    let now = SystemTime::now();
+    let mut last_elapsed = 0;
+
     loop {
+        // Update every second
+        // TODO: There’s probably a better way to do this…
+        match now.elapsed() {
+            Ok(elapsed) => {
+                let new_elapsed = elapsed.as_secs();
+
+                if new_elapsed != last_elapsed {
+                    need_redraw = true;
+                    last_elapsed = new_elapsed;
+                }
+            }
+            Err(e) => {
+                println!("Error: {:?}", e);
+            }
+        }
         match next_action.take() {
             Some(WEvent::Close) => break,
             Some(WEvent::Refresh) => {
@@ -75,15 +173,26 @@ fn main() {
         if need_redraw {
             need_redraw = false;
 
-            redraw(
+            redraw(&mut pool, window.surface(), dimensions)
-                &mut pool,
-                window.surface(),
-                dimensions,
-            )
                 .expect("Failed to draw")
         }
 
-        queue.dispatch(&mut next_action, |_, _, _| {}).unwrap();
+        if let Err(e) = display.flush() {
+            if e.kind() != ::std::io::ErrorKind::WouldBlock {
+                eprintln!("Error while trying to flush the wayland socket: {:?}", e);
+            }
+        }
+
+        if let Some(guard) = queue.prepare_read() {
+            if let Err(e) = guard.read_events() {
+                if e.kind() != ::std::io::ErrorKind::WouldBlock {
+                    eprintln!("Error while trying to read from the wayland socked: {:?}", e);
+                }
+            }
+        }
+
+        queue.dispatch_pending(&mut next_action, |_, _, _| {})
+            .expect("Failed to dispatch all messages.");
     }
 }
 
@@ -92,6 +201,14 @@ fn redraw(
     surface: &wl_surface::WlSurface,
     (buf_x, buf_y): (u32, u32),
 ) -> Result<(), ::std::io::Error> {
+    let document = gen_svg();
+
+    let bytes = document.to_string();
+    let mut opt = usvg::Options::default();
+    opt.fontdb.load_system_fonts();
+    opt.font_family = "Liberation Serif".to_string();
+    let svg_tree = usvg::Tree::from_str(&bytes, &opt.to_ref()).unwrap();
+
     let (canvas, new_buffer) = pool.buffer(
         buf_x as i32,
         buf_y as i32,
@@ -99,12 +216,28 @@ fn redraw(
         wl_shm::Format::Argb8888,
     )?;
 
+    let image_size = ::std::cmp::min(buf_x, buf_y);
+    let move_x = (buf_x - image_size) as f32 / 2.0;
+    let move_y = (buf_y - image_size) as f32 / 2.0;
+    let mut pixmap = tiny_skia::Pixmap::new(buf_x, buf_y).unwrap();
+    resvg::render(&svg_tree, usvg::FitTo::Size(image_size, image_size), tiny_skia::Transform::from_translate(move_x, move_y), pixmap.as_mut()).unwrap();
     // We do not have anything to draw yet, so draw an empty surface
-    for dst_pixel in canvas.chunks_exact_mut(4) {
+    for (dst_pixel, src_pixel) in canvas.chunks_exact_mut(4).zip(pixmap.pixels()) {
-        dst_pixel[0] = 0x00;
+        let r = src_pixel.red() as u32;
-        dst_pixel[1] = 0x00;
+        let g = src_pixel.green() as u32;
-        dst_pixel[2] = 0x00;
+        let b = src_pixel.blue() as u32;
-        dst_pixel[3] = 0xFF;
+        let a = src_pixel.alpha() as u32;
+
+        let r = ::std::cmp::min(0xFF, (0xFF * (0xFF - a) + a * r) / 0xFF);
+        let g = ::std::cmp::min(0xFF, (0xFF * (0xFF - a) + a * g) / 0xFF);
+        let b = ::std::cmp::min(0xFF, (0xFF * (0xFF - a) + a * b) / 0xFF);
+
+        let pixel: [u8; 4] = ((0xFF << 24) + (r << 16) + (g << 8) + b).to_ne_bytes();
+
+        dst_pixel[0] = pixel[0];
+        dst_pixel[1] = pixel[1];
+        dst_pixel[2] = pixel[2];
+        dst_pixel[3] = pixel[3];
     }
 
     surface.attach(Some(&new_buffer), 0, 0);