diff --git a/Cargo.lock b/Cargo.lock
index 5219c95..fd3a1f8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,6 +2,12 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "ab_glyph_rasterizer"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d9fe5e32de01730eb1f6b7f5b51c17e03e2325bf40a74f754f04f130043affff"
+
 [[package]]
 name = "aho-corasick"
 version = "0.7.18"
@@ -11,6 +17,37 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "andrew"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8c4afb09dd642feec8408e33f92f3ffc4052946f6b20f32fb99c1f58cd4fa7cf"
+dependencies = [
+ "bitflags",
+ "rusttype",
+ "walkdir",
+ "xdg",
+ "xml-rs",
+]
+
+[[package]]
+name = "anyhow"
+version = "1.0.44"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "61604a8f862e1d5c3229fdd78f8b02c68dcf73a4c4b05fd636d12240aaa242c1"
+
+[[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 = "atty"
 version = "0.2.14"
@@ -28,18 +65,90 @@ version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a"
 
+[[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 = "blake2b_simd"
+version = "0.5.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "afa748e348ad3be8263be728124b24a24f268266f6f5d58af9d75f6a40b5c587"
+dependencies = [
+ "arrayref",
+ "arrayvec",
+ "constant_time_eq",
+]
+
+[[package]]
+name = "block"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0d8c1fef690941d3e7788d328517591fecc684c084084702d6ff1641e993699a"
+
+[[package]]
+name = "cairo-rs"
+version = "0.14.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9164355c892b026d6257e696dde5f3cb39beb3718297f0f161b562fe2ee3ab86"
+dependencies = [
+ "bitflags",
+ "cairo-sys-rs",
+ "glib",
+ "libc",
+ "thiserror",
+]
+
+[[package]]
+name = "cairo-sys-rs"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d7c9c3928781e8a017ece15eace05230f04b647457d170d2d9641c94a444ff80"
+dependencies = [
+ "glib-sys",
+ "libc",
+ "system-deps",
+]
+
+[[package]]
+name = "calloop"
+version = "0.6.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b036167e76041694579972c28cf4877b4f92da222560ddb49008937b6a6727c"
+dependencies = [
+ "log",
+ "nix 0.18.0",
+]
+
 [[package]]
 name = "cc"
 version = "1.0.70"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d26a6ce4b6a484fa3edb70f7efa6fc430fd2b87285fe8b84304fd0936faa0dc0"
 
+[[package]]
+name = "cfg-expr"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b412e83326147c2bb881f8b40edfbf9905b9b8abaebd0e47ca190ba62fda8f0e"
+dependencies = [
+ "smallvec",
+]
+
+[[package]]
+name = "cfg-if"
+version = "0.1.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
+
 [[package]]
 name = "cfg-if"
 version = "1.0.0"
@@ -47,12 +156,136 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
-name = "cmake"
-version = "0.1.45"
+name = "cocoa"
+version = "0.24.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eb6210b637171dfba4cda12e579ac6dc73f5165ad56133e5d72ef3131f320855"
+checksum = "6f63902e9223530efb4e26ccd0cf55ec30d592d3b42e21a28defc42a9586e832"
 dependencies = [
- "cc",
+ "bitflags",
+ "block",
+ "cocoa-foundation",
+ "core-foundation 0.9.1",
+ "core-graphics 0.22.2",
+ "foreign-types",
+ "libc",
+ "objc",
+]
+
+[[package]]
+name = "cocoa-foundation"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7ade49b65d560ca58c403a479bb396592b155c0185eada742ee323d1d68d6318"
+dependencies = [
+ "bitflags",
+ "block",
+ "core-foundation 0.9.1",
+ "core-graphics-types",
+ "foreign-types",
+ "libc",
+ "objc",
+]
+
+[[package]]
+name = "constant_time_eq"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "245097e9a4535ee1e3e3931fcfcd55a796a44c643e8596ff6566d68f09b87bbc"
+
+[[package]]
+name = "core-foundation"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "57d24c7a13c43e870e37c1556b74555437870a04514f7685f5b354e090567171"
+dependencies = [
+ "core-foundation-sys 0.7.0",
+ "libc",
+]
+
+[[package]]
+name = "core-foundation"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0a89e2ae426ea83155dccf10c0fa6b1463ef6d5fcb44cee0b224a408fa640a62"
+dependencies = [
+ "core-foundation-sys 0.8.2",
+ "libc",
+]
+
+[[package]]
+name = "core-foundation-sys"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b3a71ab494c0b5b860bdc8407ae08978052417070c2ced38573a9157ad75b8ac"
+
+[[package]]
+name = "core-foundation-sys"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ea221b5284a47e40033bf9b66f35f984ec0ea2931eb03505246cd27a963f981b"
+
+[[package]]
+name = "core-graphics"
+version = "0.19.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b3889374e6ea6ab25dba90bb5d96202f61108058361f6dc72e8b03e6f8bbe923"
+dependencies = [
+ "bitflags",
+ "core-foundation 0.7.0",
+ "foreign-types",
+ "libc",
+]
+
+[[package]]
+name = "core-graphics"
+version = "0.22.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "269f35f69b542b80e736a20a89a05215c0ce80c2c03c514abb2e318b78379d86"
+dependencies = [
+ "bitflags",
+ "core-foundation 0.9.1",
+ "core-graphics-types",
+ "foreign-types",
+ "libc",
+]
+
+[[package]]
+name = "core-graphics-types"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3a68b68b3446082644c91ac778bf50cd4104bfb002b5a6a7c44cca5a2c70788b"
+dependencies = [
+ "bitflags",
+ "core-foundation 0.9.1",
+ "foreign-types",
+ "libc",
+]
+
+[[package]]
+name = "core-video-sys"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "34ecad23610ad9757664d644e369246edde1803fcb43ed72876565098a5d3828"
+dependencies = [
+ "cfg-if 0.1.10",
+ "core-foundation-sys 0.7.0",
+ "core-graphics 0.19.2",
+ "libc",
+ "objc",
+]
+
+[[package]]
+name = "crossbeam"
+version = "0.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4ae5588f6b3c3cb05239e90bd110f257254aecd01e4635400391aeae07497845"
+dependencies = [
+ "cfg-if 1.0.0",
+ "crossbeam-channel",
+ "crossbeam-deque",
+ "crossbeam-epoch",
+ "crossbeam-queue",
+ "crossbeam-utils",
 ]
 
 [[package]]
@@ -61,7 +294,7 @@ version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "06ed27e177f16d65f0f0c22a213e17c696ace5dd64b14258b52f9417ccb52db4"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "crossbeam-utils",
 ]
 
@@ -71,7 +304,7 @@ version = "0.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6455c0ca19f0d2fbf751b908d5c55c1f5cbc65e03c4225427254b46890bdde1e"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "crossbeam-epoch",
  "crossbeam-utils",
 ]
@@ -82,23 +315,120 @@ version = "0.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4ec02e091aa634e2c3ada4a392989e7c3116673ef0ac5b72232439094d73b7fd"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "crossbeam-utils",
  "lazy_static",
  "memoffset",
  "scopeguard",
 ]
 
+[[package]]
+name = "crossbeam-queue"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b10ddc024425c88c2ad148c1b0fd53f4c6d38db9697c9f1588381212fa657c9"
+dependencies = [
+ "cfg-if 1.0.0",
+ "crossbeam-utils",
+]
+
 [[package]]
 name = "crossbeam-utils"
 version = "0.8.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d82cfc11ce7f2c3faef78d8a684447b40d503d9681acebed6cb728d45940c4db"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "lazy_static",
 ]
 
+[[package]]
+name = "darling"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0d706e75d87e35569db781a9b5e2416cff1236a47ed380831f959382ccd5f858"
+dependencies = [
+ "darling_core",
+ "darling_macro",
+]
+
+[[package]]
+name = "darling_core"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f0c960ae2da4de88a91b2d920c2a7233b400bc33cb28453a2987822d8392519b"
+dependencies = [
+ "fnv",
+ "ident_case",
+ "proc-macro2",
+ "quote",
+ "strsim",
+ "syn",
+]
+
+[[package]]
+name = "darling_macro"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d9b5a2f4ac4969822c62224815d069952656cadc7084fdca9751e6d959189b72"
+dependencies = [
+ "darling_core",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "derivative"
+version = "2.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fcc3dd5e9e9c0b295d6e1e4d811fb6f157d5ffd784b8d202fc62eac8035a770b"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "dirs"
+version = "1.0.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3fd78930633bd1c6e35c4b42b1df7b0cbc6bc191146e512bb3bedf243fcc3901"
+dependencies = [
+ "libc",
+ "redox_users",
+ "winapi",
+]
+
+[[package]]
+name = "dispatch"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bd0c93bb4b0c6d9b77f4435b0ae98c24d17f1c45b2ff844c6151a07256ca923b"
+
+[[package]]
+name = "dlib"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b11f15d1e3268f140f68d390637d5e76d849782d971ae7063e0da69fe9709a76"
+dependencies = [
+ "libloading 0.6.7",
+]
+
+[[package]]
+name = "dlib"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac1b7517328c04c2aa68422fc60a41b92208182142ed04a25879c26c8f878794"
+dependencies = [
+ "libloading 0.7.1",
+]
+
+[[package]]
+name = "downcast-rs"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ea835d29036a4087793836fa931b08837ad5e957da9e23886b29586fb9b6650"
+
 [[package]]
 name = "either"
 version = "1.6.1"
@@ -119,34 +449,145 @@ dependencies = [
 ]
 
 [[package]]
-name = "fltk"
-version = "1.2.4"
+name = "fnv"
+version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c30618861047220f552e9e7dba957bd9c0953f23d96e27447ca4a934f05870a2"
+checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
+
+[[package]]
+name = "foreign-types"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f6f339eb8adc052cd2ca78910fda869aefa38d22d5cb648e6485e4d3fc06f3b1"
 dependencies = [
- "bitflags",
- "fltk-derive",
- "fltk-sys",
- "raw-window-handle",
+ "foreign-types-shared",
 ]
 
 [[package]]
-name = "fltk-derive"
-version = "1.2.4"
+name = "foreign-types-shared"
+version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "36c1111ff05b7d2552093f23dd9db1e0e380f9c6c0b57d69e21811eb4057d011"
+checksum = "00b0228411908ca8685dba7fc2cdd70ec9990a6e753e89b6ac91a84c40fbaf4b"
+
+[[package]]
+name = "futures-channel"
+version = "0.3.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5da6ba8c3bb3c165d3c7319fc1cc8304facf1fb8db99c5de877183c08a273888"
 dependencies = [
+ "futures-core",
+]
+
+[[package]]
+name = "futures-core"
+version = "0.3.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "88d1c26957f23603395cd326b0ffe64124b818f4449552f960d815cfba83a53d"
+
+[[package]]
+name = "futures-executor"
+version = "0.3.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "45025be030969d763025784f7f355043dc6bc74093e4ecc5000ca4dc50d8745c"
+dependencies = [
+ "futures-core",
+ "futures-task",
+ "futures-util",
+]
+
+[[package]]
+name = "futures-task"
+version = "0.3.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d3d00f4eddb73e498a54394f228cd55853bdf059259e8e7bc6e69d408892e99"
+
+[[package]]
+name = "futures-util"
+version = "0.3.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "36568465210a3a6ee45e1f165136d68671471a501e632e9a98d96872222b5481"
+dependencies = [
+ "autocfg",
+ "futures-core",
+ "futures-task",
+ "pin-project-lite",
+ "pin-utils",
+ "slab",
+]
+
+[[package]]
+name = "getrandom"
+version = "0.1.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8fc3cb4d91f53b50155bdcfd23f6a4c39ae1969c2ae85982b135750cccaf5fce"
+dependencies = [
+ "cfg-if 1.0.0",
+ "libc",
+ "wasi",
+]
+
+[[package]]
+name = "glib"
+version = "0.14.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7c515f1e62bf151ef6635f528d05b02c11506de986e43b34a5c920ef0b3796a4"
+dependencies = [
+ "bitflags",
+ "futures-channel",
+ "futures-core",
+ "futures-executor",
+ "futures-task",
+ "glib-macros",
+ "glib-sys",
+ "gobject-sys",
+ "libc",
+ "once_cell",
+ "smallvec",
+]
+
+[[package]]
+name = "glib-macros"
+version = "0.14.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2aad66361f66796bfc73f530c51ef123970eb895ffba991a234fcf7bea89e518"
+dependencies = [
+ "anyhow",
+ "heck",
+ "proc-macro-crate 1.1.0",
+ "proc-macro-error",
+ "proc-macro2",
  "quote",
  "syn",
 ]
 
 [[package]]
-name = "fltk-sys"
-version = "1.2.4"
+name = "glib-sys"
+version = "0.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ccc3328371cbe9d01b89488e815c39c5680843379606aa74b1b169c1f54a489"
+checksum = "1c1d60554a212445e2a858e42a0e48cece1bd57b311a19a9468f70376cf554ae"
 dependencies = [
- "cmake",
+ "libc",
+ "system-deps",
+]
+
+[[package]]
+name = "gobject-sys"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aa92cae29759dae34ab5921d73fff5ad54b3d794ab842c117e36cafc7994c3f5"
+dependencies = [
+ "glib-sys",
+ "libc",
+ "system-deps",
+]
+
+[[package]]
+name = "heck"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6d621efb26863f0e9924c6ac577e8275e5e6b77455db64ffa6c65c904e9e132c"
+dependencies = [
+ "unicode-segmentation",
 ]
 
 [[package]]
@@ -164,6 +605,36 @@ version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9a3a5bfb195931eeb336b2a7b4d761daec841b97f947d34394601737a7bba5e4"
 
+[[package]]
+name = "ident_case"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b9e0384b61958566e926dc50660321d12159025e767c18e043daf26b70104c39"
+
+[[package]]
+name = "instant"
+version = "0.1.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "716d3d89f35ac6a34fd0eed635395f4c3b76fa889338a4632e5231a8684216bd"
+dependencies = [
+ "cfg-if 1.0.0",
+]
+
+[[package]]
+name = "itertools"
+version = "0.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "69ddb889f9d0d08a67338271fa9b62996bc788c7796a5c18cf057420aaed5eaf"
+dependencies = [
+ "either",
+]
+
+[[package]]
+name = "jni-sys"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8eaf4bc02d17cbdd7ff4c7438cafcdf7fb9a4613313ad11b4f8fefe7d3fa0130"
+
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
@@ -176,13 +647,51 @@ version = "0.2.103"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dd8f7255a17a627354f321ef0055d63b898c6fb27eff628af4d1b66b7331edf6"
 
+[[package]]
+name = "libloading"
+version = "0.6.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "351a32417a12d5f7e82c368a66781e307834dae04c6ce0cd4456d52989229883"
+dependencies = [
+ "cfg-if 1.0.0",
+ "winapi",
+]
+
+[[package]]
+name = "libloading"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c0cf036d15402bea3c5d4de17b3fce76b3e4a56ebc1f577be0e7a72f7c607cf0"
+dependencies = [
+ "cfg-if 1.0.0",
+ "winapi",
+]
+
+[[package]]
+name = "lock_api"
+version = "0.4.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "712a4d093c9976e24e7dbca41db895dabcbac38eb5f4045393d17a95bdfb1109"
+dependencies = [
+ "scopeguard",
+]
+
 [[package]]
 name = "log"
 version = "0.4.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "51b9bbe6c47d51fc3e1a9b945965946b4c44142ab8792c50835a980d362c2710"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
+]
+
+[[package]]
+name = "malloc_buf"
+version = "0.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62bb907fe88d54d8d9ce32a3cceab4218ed2f6b7d35617cafe9adf84e43919cb"
+dependencies = [
+ "libc",
 ]
 
 [[package]]
@@ -191,6 +700,15 @@ version = "2.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "308cc39be01b73d0d18f82a0e7b2a3df85245f84af96fdddc5d202d27e47b86a"
 
+[[package]]
+name = "memmap2"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d9b70ca2a6103ac8b665dc150b142ef0e4e89df640c9e6cf295d189c3caebe5a"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "memoffset"
 version = "0.6.4"
@@ -200,6 +718,135 @@ dependencies = [
  "autocfg",
 ]
 
+[[package]]
+name = "minimal-lexical"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c64630dcdd71f1a64c435f54885086a0de5d6a12d104d69b165fb7d5286d677"
+
+[[package]]
+name = "mio"
+version = "0.7.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8c2bdb6314ec10835cd3293dd268473a835c02b7b352e788be788b3c6ca6bb16"
+dependencies = [
+ "libc",
+ "log",
+ "miow",
+ "ntapi",
+ "winapi",
+]
+
+[[package]]
+name = "mio-misc"
+version = "1.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0ddf05411bb159cdb5801bb10002afb66cb4572be656044315e363460ce69dc2"
+dependencies = [
+ "crossbeam",
+ "crossbeam-queue",
+ "log",
+ "mio",
+]
+
+[[package]]
+name = "miow"
+version = "0.3.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b9f1c5b025cda876f66ef43a113f91ebc9f4ccef34843000e0adf6ebbab84e21"
+dependencies = [
+ "winapi",
+]
+
+[[package]]
+name = "ndk"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8794322172319b972f528bf90c6b467be0079f1fa82780ffb431088e741a73ab"
+dependencies = [
+ "jni-sys",
+ "ndk-sys",
+ "num_enum",
+ "thiserror",
+]
+
+[[package]]
+name = "ndk-glue"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c5caf0c24d51ac1c905c27d4eda4fa0635bbe0de596b8f79235e0b17a4d29385"
+dependencies = [
+ "lazy_static",
+ "libc",
+ "log",
+ "ndk",
+ "ndk-macro",
+ "ndk-sys",
+]
+
+[[package]]
+name = "ndk-macro"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05d1c6307dc424d0f65b9b06e94f88248e6305726b14729fd67a5e47b2dc481d"
+dependencies = [
+ "darling",
+ "proc-macro-crate 0.1.5",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "ndk-sys"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c44922cb3dbb1c70b5e5f443d63b64363a898564d739ba5198e3a9138442868d"
+
+[[package]]
+name = "nix"
+version = "0.18.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "83450fe6a6142ddd95fb064b746083fc4ef1705fe81f64a64e1d4b39f54a1055"
+dependencies = [
+ "bitflags",
+ "cc",
+ "cfg-if 0.1.10",
+ "libc",
+]
+
+[[package]]
+name = "nix"
+version = "0.20.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fa9b4819da1bc61c0ea48b63b7bc8604064dd43013e7cc325df098d49cd7c18a"
+dependencies = [
+ "bitflags",
+ "cc",
+ "cfg-if 1.0.0",
+ "libc",
+]
+
+[[package]]
+name = "nom"
+version = "7.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7ffd9d26838a953b4af82cbeb9f1592c6798916983959be223a7124e992742c1"
+dependencies = [
+ "memchr",
+ "minimal-lexical",
+ "version_check",
+]
+
+[[package]]
+name = "ntapi"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f6bb902e437b6d86e03cce10a7e2af662292c5dfef23b65899ea3ac9354ad44"
+dependencies = [
+ "winapi",
+]
+
 [[package]]
 name = "num_cpus"
 version = "1.13.0"
@@ -210,6 +857,144 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "num_enum"
+version = "0.5.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f9bd055fb730c4f8f4f57d45d35cd6b3f0980535b056dc7ff119cee6a66ed6f"
+dependencies = [
+ "derivative",
+ "num_enum_derive",
+]
+
+[[package]]
+name = "num_enum_derive"
+version = "0.5.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "486ea01961c4a818096de679a8b740b26d9033146ac5291b1c98557658f8cdd9"
+dependencies = [
+ "proc-macro-crate 1.1.0",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "objc"
+version = "0.2.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "915b1b472bc21c53464d6c8461c9d3af805ba1ef837e1cac254428f4a77177b1"
+dependencies = [
+ "malloc_buf",
+]
+
+[[package]]
+name = "once_cell"
+version = "1.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "692fcb63b64b1758029e0a96ee63e049ce8c5948587f2f7208df04625e5f6b56"
+
+[[package]]
+name = "owned_ttf_parser"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9f923fb806c46266c02ab4a5b239735c144bdeda724a50ed058e5226f594cde3"
+dependencies = [
+ "ttf-parser",
+]
+
+[[package]]
+name = "parking_lot"
+version = "0.11.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7d17b78036a60663b797adeaee46f5c9dfebb86948d1255007a1d6be0271ff99"
+dependencies = [
+ "instant",
+ "lock_api",
+ "parking_lot_core",
+]
+
+[[package]]
+name = "parking_lot_core"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d76e8e1493bcac0d2766c42737f34458f1c8c50c0d23bcb24ea953affb273216"
+dependencies = [
+ "cfg-if 1.0.0",
+ "instant",
+ "libc",
+ "redox_syscall 0.2.10",
+ "smallvec",
+ "winapi",
+]
+
+[[package]]
+name = "percent-encoding"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d4fd5641d01c8f18a23da7b6fe29298ff4b55afcccdf78973b24cf3175fee32e"
+
+[[package]]
+name = "pin-project-lite"
+version = "0.2.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8d31d11c69a6b52a174b42bdc0c30e5e11670f90788b2c471c31c1d17d449443"
+
+[[package]]
+name = "pin-utils"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
+
+[[package]]
+name = "pkg-config"
+version = "0.3.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7c9b1041b4387893b91ee6746cddfc28516aff326a3519fb2adf820932c5e6cb"
+
+[[package]]
+name = "proc-macro-crate"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d6ea3c4595b96363c13943497db34af4460fb474a95c43f4446ad341b8c9785"
+dependencies = [
+ "toml",
+]
+
+[[package]]
+name = "proc-macro-crate"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1ebace6889caf889b4d3f76becee12e90353f2b8c7d875534a71e5742f8f6f83"
+dependencies = [
+ "thiserror",
+ "toml",
+]
+
+[[package]]
+name = "proc-macro-error"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "da25490ff9892aab3fcf7c36f08cfb902dd3e71ca0f9f9517bea02a73a5ce38c"
+dependencies = [
+ "proc-macro-error-attr",
+ "proc-macro2",
+ "quote",
+ "syn",
+ "version_check",
+]
+
+[[package]]
+name = "proc-macro-error-attr"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a1be40180e52ecc98ad80b184934baf3d0d29f979574e439af5a55274b35f869"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "version_check",
+]
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.29"
@@ -262,6 +1047,32 @@ dependencies = [
  "num_cpus",
 ]
 
+[[package]]
+name = "redox_syscall"
+version = "0.1.57"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "41cc0f7e4d5d4544e8861606a285bb08d3e70712ccc7d2b84d7c0ccfaf4b05ce"
+
+[[package]]
+name = "redox_syscall"
+version = "0.2.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8383f39639269cde97d255a32bdb68c047337295414940c68bdd30c2e13203ff"
+dependencies = [
+ "bitflags",
+]
+
+[[package]]
+name = "redox_users"
+version = "0.3.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "de0737333e7a9502c789a36d7c7fa6092a49895d4faa31ca5df163857ded2e9d"
+dependencies = [
+ "getrandom",
+ "redox_syscall 0.1.57",
+ "rust-argon2",
+]
+
 [[package]]
 name = "regex"
 version = "1.5.4"
@@ -283,20 +1094,120 @@ checksum = "f497285884f3fcff424ffc933e56d7cbca511def0c9831a7f9b5f6153e3cc89b"
 name = "roftl"
 version = "0.1.0"
 dependencies = [
+ "cairo-rs",
+ "cairo-sys-rs",
  "env_logger",
- "fltk",
  "log",
  "rayon",
+ "winit",
  "xcb",
  "xcb-util",
 ]
 
+[[package]]
+name = "rust-argon2"
+version = "0.8.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4b18820d944b33caa75a71378964ac46f58517c92b6ae5f762636247c09e78fb"
+dependencies = [
+ "base64",
+ "blake2b_simd",
+ "constant_time_eq",
+ "crossbeam-utils",
+]
+
+[[package]]
+name = "rusttype"
+version = "0.9.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc7c727aded0be18c5b80c1640eae0ac8e396abf6fa8477d96cb37d18ee5ec59"
+dependencies = [
+ "ab_glyph_rasterizer",
+ "owned_ttf_parser",
+]
+
+[[package]]
+name = "same-file"
+version = "1.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "93fc1dc3aaa9bfed95e02e6eadabb4baf7e3078b0bd1b4d7b6b0b68378900502"
+dependencies = [
+ "winapi-util",
+]
+
+[[package]]
+name = "scoped-tls"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ea6a9290e3c9cf0f18145ef7ffa62d68ee0bf5fcd651017e586dc7fd5da448c2"
+
 [[package]]
 name = "scopeguard"
 version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 
+[[package]]
+name = "serde"
+version = "1.0.130"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f12d06de37cf59146fbdecab66aa99f9fe4f78722e3607577a5375d66bd0c913"
+
+[[package]]
+name = "slab"
+version = "0.4.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c307a32c1c5c437f38c7fd45d753050587732ba8628319fbdf12a7e289ccc590"
+
+[[package]]
+name = "smallvec"
+version = "1.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1ecab6c735a6bb4139c0caafd0cc3635748bbb3acf4550e8138122099251f309"
+
+[[package]]
+name = "smithay-client-toolkit"
+version = "0.12.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4750c76fd5d3ac95fa3ed80fe667d6a3d8590a960e5b575b98eea93339a80b80"
+dependencies = [
+ "andrew",
+ "bitflags",
+ "calloop",
+ "dlib 0.4.2",
+ "lazy_static",
+ "log",
+ "memmap2",
+ "nix 0.18.0",
+ "wayland-client",
+ "wayland-cursor",
+ "wayland-protocols",
+]
+
+[[package]]
+name = "strsim"
+version = "0.9.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6446ced80d6c486436db5c078dde11a9f73d42b57fb273121e160b84f63d894c"
+
+[[package]]
+name = "strum"
+version = "0.21.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aaf86bbcfd1fa9670b7a129f64fc0c9fcbbfe4f1bc4210e9e98fe71ffc12cde2"
+
+[[package]]
+name = "strum_macros"
+version = "0.21.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d06aaeeee809dbc59eb4556183dd927df67db1540de5be8d3ec0b6636358a5ec"
+dependencies = [
+ "heck",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "syn"
 version = "1.0.77"
@@ -308,6 +1219,24 @@ dependencies = [
  "unicode-xid",
 ]
 
+[[package]]
+name = "system-deps"
+version = "3.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "480c269f870722b3b08d2f13053ce0c2ab722839f472863c3e2d61ff3a1c2fa6"
+dependencies = [
+ "anyhow",
+ "cfg-expr",
+ "heck",
+ "itertools",
+ "pkg-config",
+ "strum",
+ "strum_macros",
+ "thiserror",
+ "toml",
+ "version-compare",
+]
+
 [[package]]
 name = "termcolor"
 version = "1.1.2"
@@ -317,12 +1246,155 @@ dependencies = [
  "winapi-util",
 ]
 
+[[package]]
+name = "thiserror"
+version = "1.0.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "854babe52e4df1653706b98fcfc05843010039b406875930a70e4d9644e5c417"
+dependencies = [
+ "thiserror-impl",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "1.0.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aa32fd3f627f367fe16f893e2597ae3c05020f8bba2666a4e6ea73d377e5714b"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "toml"
+version = "0.5.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a31142970826733df8241ef35dc040ef98c679ab14d7c3e54d827099b3acecaa"
+dependencies = [
+ "serde",
+]
+
+[[package]]
+name = "ttf-parser"
+version = "0.6.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3e5d7cd7ab3e47dda6e56542f4bbf3824c15234958c6e1bd6aaa347e93499fdc"
+
+[[package]]
+name = "unicode-segmentation"
+version = "1.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8895849a949e7845e06bd6dc1aa51731a103c42707010a5b591c0038fb73385b"
+
 [[package]]
 name = "unicode-xid"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
 
+[[package]]
+name = "version-compare"
+version = "0.0.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1c18c859eead79d8b95d09e4678566e8d70105c4e7b251f707a03df32442661b"
+
+[[package]]
+name = "version_check"
+version = "0.9.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5fecdca9a5291cc2b8dcf7dc02453fee791a280f3743cb0905f8822ae463b3fe"
+
+[[package]]
+name = "walkdir"
+version = "2.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "808cf2735cd4b6866113f648b791c6adc5714537bc222d9347bb203386ffda56"
+dependencies = [
+ "same-file",
+ "winapi",
+ "winapi-util",
+]
+
+[[package]]
+name = "wasi"
+version = "0.9.0+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
+
+[[package]]
+name = "wayland-client"
+version = "0.28.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3ab332350e502f159382201394a78e3cc12d0f04db863429260164ea40e0355"
+dependencies = [
+ "bitflags",
+ "downcast-rs",
+ "libc",
+ "nix 0.20.0",
+ "scoped-tls",
+ "wayland-commons",
+ "wayland-scanner",
+ "wayland-sys",
+]
+
+[[package]]
+name = "wayland-commons"
+version = "0.28.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a21817947c7011bbd0a27e11b17b337bfd022e8544b071a2641232047966fbda"
+dependencies = [
+ "nix 0.20.0",
+ "once_cell",
+ "smallvec",
+ "wayland-sys",
+]
+
+[[package]]
+name = "wayland-cursor"
+version = "0.28.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "be610084edd1586d45e7bdd275fe345c7c1873598caa464c4fb835dee70fa65a"
+dependencies = [
+ "nix 0.20.0",
+ "wayland-client",
+ "xcursor",
+]
+
+[[package]]
+name = "wayland-protocols"
+version = "0.28.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "286620ea4d803bacf61fa087a4242ee316693099ee5a140796aaba02b29f861f"
+dependencies = [
+ "bitflags",
+ "wayland-client",
+ "wayland-commons",
+ "wayland-scanner",
+]
+
+[[package]]
+name = "wayland-scanner"
+version = "0.28.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ce923eb2deb61de332d1f356ec7b6bf37094dc5573952e1c8936db03b54c03f1"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "xml-rs",
+]
+
+[[package]]
+name = "wayland-sys"
+version = "0.28.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d841fca9aed7febf9bed2e9796c49bf58d4152ceda8ac949ebe00868d8f0feb8"
+dependencies = [
+ "dlib 0.5.0",
+ "lazy_static",
+ "pkg-config",
+]
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -354,6 +1426,49 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
+[[package]]
+name = "winit"
+version = "0.25.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "79610794594d5e86be473ef7763f604f2159cbac8c94debd00df8fb41e86c2f8"
+dependencies = [
+ "bitflags",
+ "cocoa",
+ "core-foundation 0.9.1",
+ "core-graphics 0.22.2",
+ "core-video-sys",
+ "dispatch",
+ "instant",
+ "lazy_static",
+ "libc",
+ "log",
+ "mio",
+ "mio-misc",
+ "ndk",
+ "ndk-glue",
+ "ndk-sys",
+ "objc",
+ "parking_lot",
+ "percent-encoding",
+ "raw-window-handle",
+ "scopeguard",
+ "smithay-client-toolkit",
+ "wayland-client",
+ "winapi",
+ "x11-dl",
+]
+
+[[package]]
+name = "x11-dl"
+version = "2.19.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ea26926b4ce81a6f5d9d0f3a0bc401e5a37c6ae14a1bfaa8ff6099ca80038c59"
+dependencies = [
+ "lazy_static",
+ "libc",
+ "pkg-config",
+]
+
 [[package]]
 name = "xcb"
 version = "0.9.0"
@@ -373,3 +1488,27 @@ dependencies = [
  "libc",
  "xcb",
 ]
+
+[[package]]
+name = "xcursor"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "463705a63313cd4301184381c5e8042f0a7e9b4bb63653f216311d4ae74690b7"
+dependencies = [
+ "nom",
+]
+
+[[package]]
+name = "xdg"
+version = "2.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "de4cfc7dc9727713f386aadce9496f1ed64ea368d9f1f813a54d0f98f8741286"
+dependencies = [
+ "dirs",
+]
+
+[[package]]
+name = "xml-rs"
+version = "0.8.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d2d7d3948613f75c98fd9328cfdcc45acc4d360655289d0a7d4ec931392200a3"
diff --git a/Cargo.toml b/Cargo.toml
index 318edfd..2985946 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,10 +6,12 @@ edition = "2018"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-fltk = "1.1"
 log = "0.4"
 env_logger = "0.9.0"
 rayon = "1.5.1"
 
+winit = "0.25"
+cairo-rs = {version = "0.14.0", features = ["xcb"]}
+cairo-sys-rs = {version = "0.14.0", features = ["xcb"]}
 xcb = "0.9.0"
 xcb-util = {version = "0.3.0", features = ["ewmh", "icccm"]}
\ No newline at end of file
diff --git a/src/main.rs b/src/main.rs
index 620350f..382223d 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,6 +1,8 @@
-use log::{debug, info, trace, warn};
+use log::{debug, trace};
 use std::error::Error;
 
+use winit::{event::{Event, WindowEvent::{CloseRequested, ReceivedCharacter}}, event_loop::{ControlFlow, EventLoop}, window::{Window, WindowBuilder}};
+
 mod roftl;
 mod ui;
 mod sources;
@@ -8,37 +10,79 @@ mod sources;
 fn main() -> Result<(), Box<dyn Error>> {
     env_logger::init();
 
+    debug!{"Set up roftl"};
     let roftl = roftl::Roftl::default()
         .add_source(sources::TestSource::new("ts1"))
-        .add_source(sources::Window::new())
-        .source();
+        .add_source(sources::Window::new());
 
-    let mut app = ui::draw()?;
+    debug!{"Source roftl sources"}
+    roftl.source();
 
-    roftl
-        .narrow("")
-        .iter()
-        .for_each(|e| app.add_candidate((*e).clone()));
+    let mut input_buffer = String::new();
 
-    while app.wait() {
-        match app.events.recv() {
-            Some(ui::Event::CandidateSelect(i)) => {
-                println! {"Selected an entry {}", i}
-                roftl.action(i, roftl::Action::Primary)
+    debug!{"Build window"}
+    let event_loop = EventLoop::new();
+    let window = WindowBuilder::new()
+        .with_transparent(true)
+        .build(&event_loop)
+        .expect("Could not create window");
+
+    debug!{"Draw empty state to window"}
+    ui::draw_on_window(&window, "");
+
+    debug!{"Start event loop"}
+    event_loop.run(move |evt, _win, flow| {
+        *flow = ControlFlow::Wait;
+
+        if let Event::WindowEvent{window_id, ..} = evt {
+            if window_id != window.id() {
+                debug!{"Received event for foreign window"}
+                return;
+            }
+        }
+
+        match evt {
+            Event::WindowEvent{event: CloseRequested, ..} => *flow = ControlFlow::Exit,
+
+            Event::WindowEvent{event: ReceivedCharacter(character), ..} => {
+                *flow = process_input(character, &mut input_buffer, &window)
             }
 
-            Some(ui::Event::InputUpdate) => {
-                trace! {"Input: {}", &app.get_input()}
-                app.clear_candidates();
-                roftl
-                    .narrow(&app.get_input())
-                    .iter()
-                    .for_each(|e| app.add_candidate((*e).clone()));
+            Event::RedrawRequested(window_id) if window_id == window.id() => {
+                trace!{"Redrawing with input {}", input_buffer}
+                ui::draw_on_window(&window, &input_buffer);
             }
 
-            _ => {}
+            _ => ()
+        }
+    });
+}
+
+fn process_input(character: char, input_buffer: &mut String, window: &Window) -> ControlFlow {
+    match character {
+        'q' | 'Q'  => ControlFlow::Exit,
+
+        // Escape
+        c if c == char::from(0x1b) => ControlFlow::Exit,
+
+        // Backspace
+        c if c == char::from(0x08) => {
+            trace!{"Retrieved backspace. Pop char from input"}
+            input_buffer.pop();
+            window.request_redraw();
+            ControlFlow::Wait
+        }
+
+        c if c.is_control() => {
+            debug!{"Got unknown control character"}
+            ControlFlow::Wait
+        }
+
+        _ => {
+            trace!{"Push {} to input buffer", character}
+            input_buffer.push(character);
+            window.request_redraw();
+            ControlFlow::Wait
         }
     }
-
-    Ok(())
 }
diff --git a/src/ui.rs b/src/ui.rs
index e2fcf44..894e0b4 100644
--- a/src/ui.rs
+++ b/src/ui.rs
@@ -1,124 +1,130 @@
-use std::ops::Deref;
+use std::{borrow::BorrowMut, ffi::c_void};
 
-use fltk::app::event_key;
-use fltk::enums::{CallbackTrigger, Font, FrameType, Key};
-use fltk::group::{PackType, ScrollType};
-use fltk::prelude::*;
-use fltk::{app, group, input, window};
-use fltk::{browser, output};
+use winit::{platform::unix::WindowExtUnix, window::Window};
 
-use super::roftl::Entry;
 
-#[derive(Clone)]
-pub enum Event {
-    InputUpdate,
-    CandidateSelect(i32),
+fn get_visual_type<T>(mut connection: T) -> xcb::Visualtype
+where T: BorrowMut<*mut c_void>
+{
+    let xcb_conn = unsafe { xcb::Connection::from_raw_conn(*connection.borrow_mut() as *mut xcb::ffi::xcb_connection_t) };
+
+    let setup = xcb_conn.get_setup();
+    let mut roots = setup.roots();
+    let screen = roots.next().unwrap();
+    let depth = screen.allowed_depths().next().unwrap();
+    let visualtype = depth.visuals().next().unwrap();
+
+    // xcb::Connection calls disconnect on the underlying xcb_connection_t
+    // when dropped. We cannot let this happen since the xcb_connection_t
+    // is actually owned by the winit::Window
+    std::mem::forget(xcb_conn);
+
+    visualtype
 }
 
-pub struct RoftlApp {
-    pub app: app::App,
-    pub events: app::Receiver<Event>,
+fn make_context(window: &Window) -> cairo::Context {
+    let winit_xcb_conn = window
+        .xcb_connection()
+        .expect("Could not get connection from window");
 
-    send: app::Sender<Event>,
-    input: input::Input,
-    browser: browser::HoldBrowser,
+    let visual_type = unsafe {
+        let mut visual_type = get_visual_type(winit_xcb_conn).base;
+        cairo::XCBVisualType::from_raw_none(
+            &mut visual_type as *mut xcb::ffi::xcb_visualtype_t as *mut cairo::ffi::xcb_visualtype_t
+        )
+    };
+
+    let connection = unsafe {
+        cairo::XCBConnection::from_raw_none(winit_xcb_conn as *mut cairo_sys::xcb_connection_t)
+    };
+
+    let drawable = cairo::XCBDrawable(window.xlib_window().unwrap() as u32);
+
+    let surface = cairo::XCBSurface::create(
+        &connection,
+        &drawable,
+        &visual_type,
+        window.inner_size().width as i32,
+        window.inner_size().height as i32,
+    ).expect("Could not create drawing surface");
+
+    cairo::Context::new(&surface).expect("Could not create drawing context")
 }
 
-impl RoftlApp {
-    pub fn add_candidate(&mut self, entry: Entry) {
-        let entry_line = format! {"{}\tf{}\t{}", entry.name, entry.description, entry.source};
-        self.browser.add(&entry_line);
-    }
+fn draw_rectangle(cr: &cairo::Context, x: f64, y: f64, width: f64, height: f64, aspect: f64) {
+    let corner_radius = height / 10.0;   /* and corner curvature radius */
+    let radius = corner_radius / aspect;
+    let degrees = std::f64::consts::PI / 180.0;
 
-    pub fn clear_candidates(&mut self) {
-        self.browser.clear();
-    }
+    cr.new_sub_path ();
+    cr.arc (x + width - radius, y + radius, radius, -90.0 * degrees, 0.0 * degrees);
+    cr.arc (x + width - radius, y + height - radius, radius, 0.0 * degrees, 90.0 * degrees);
+    cr.arc (x + radius, y + height - radius, radius, 90.0 * degrees, 180.0 * degrees);
+    cr.arc (x + radius, y + radius, radius, 180.0 * degrees, 270.0 * degrees);
+    cr.close_path ();
 
-    pub fn get_input(&self) -> String {
-        self.input.value().clone()
+    cr.set_source_rgb (0.5, 0.5, 1.0);
+    cr.fill_preserve ().unwrap();
+
+    cr.set_source_rgb(1.0, 1.0, 1.0);
+    cr.set_line_width (cr.device_to_user_distance(1.0, 1.0).unwrap().0);
+    cr.stroke ().unwrap();
+}
+
+fn draw_text(cr: &cairo::Context, input: &str) {
+    cr.select_font_face ("serif", cairo::FontSlant::Normal, cairo::FontWeight::Normal);
+    cr.set_font_size (0.25);
+    cr.set_source_rgb (0.0, 0.0, 1.0);
+    cr.move_to (0.05, 0.23);
+
+    if input.len() > 3 {
+        cr.show_text(&input[..3]).unwrap();
+        cr.select_font_face ("serif", cairo::FontSlant::Normal, cairo::FontWeight::Bold);
+        cr.show_text(&input[3..]).unwrap();
+    } else {
+        cr.show_text(input).unwrap();
+        cr.select_font_face ("serif", cairo::FontSlant::Normal, cairo::FontWeight::Normal);
     }
 }
 
-impl Deref for RoftlApp {
-    type Target = app::App;
+pub fn draw_on_window(window: &Window, input: &str) {
+    let cr = make_context(&window);
 
-    fn deref(&self) -> &Self::Target {
-        &self.app
+    cr.translate(300.0, 300.0);
+    cr.scale(100.0, 100.0);
+
+
+    draw_rectangle(&cr, 0.0, 0.0, 4.0, 0.3, 2.0);
+    draw_text(&cr, input);
+
+    for i in 1..10 {
+        draw_rectangle(&cr, 0.0, 0.3*(i as f64), 4.0, 0.3, 2.0);
     }
+
+
+    // cr.set_line_width(0.5);
+    // cr.set_source_rgb(255.0, 255.0, 255.0);
+    // cr.rectangle(20.0, 20.0, 20.0, 40.0);
+    // cr.stroke().unwrap();
+
+    // cr.set_source_rgb(0.0, 0.0, 0.0);
+    // cr.move_to(0.0, 0.0);
+    // cr.line_to(1.0, 1.0);
+    // cr.move_to(1.0, 0.0);
+    // cr.line_to(0.0, 1.0);
+    // cr.set_line_width(0.2);
+    // cr.stroke().unwrap();
+
+    // cr.rectangle(0.0, 0.0, 0.5, 0.5);
+    // cr.set_source_rgba(1.0, 0.0, 0.0, 0.80);
+    // cr.fill().unwrap();
+
+    // cr.rectangle(0.0, 0.5, 0.5, 0.5);
+    // cr.set_source_rgba(0.0, 1.0, 0.0, 0.60);
+    // cr.fill().unwrap();
+
+    // cr.rectangle(0.5, 0.0, 0.5, 0.5);
+    // cr.set_source_rgba(0.0, 0.0, 1.0, 0.40);
+    // cr.fill().unwrap();
 }
 
-pub fn draw() -> Result<RoftlApp, FltkError> {
-    app::set_font(Font::Screen);
-
-    let app = app::App::default();
-
-    let mut window = window::Window::default()
-        .with_size(400, 300)
-        .center_screen();
-    window.set_border(false);
-
-    let pack = group::Pack::default()
-        .with_type(PackType::Vertical)
-        .with_size(400, 40);
-
-    let mut input = input::Input::default().with_size(0, 40);
-    input.set_trigger(CallbackTrigger::Changed);
-
-    let mut browser: browser::HoldBrowser =
-        browser::HoldBrowser::default().with_size(400, 300 - 40);
-    browser.set_has_scrollbar(browser::BrowserScrollbar::None);
-
-    pack.end();
-    window.end();
-
-    window.show();
-
-    let (s, r) = app::channel::<Event>();
-
-    input.emit(s.clone(), Event::InputUpdate);
-
-    let mut b1 = browser.clone();
-    let s1 = s.clone();
-    input.handle(move |_input, evt| match evt {
-        fltk::enums::Event::KeyUp => {
-            if event_key().eq(&Key::Tab) {
-                b1.take_focus().unwrap();
-                b1.select(1);
-                s1.send(Event::CandidateSelect(b1.value()));
-                return true;
-            }
-            return false;
-        }
-
-        _ => false,
-    });
-
-    let mut b2 = browser.clone();
-    let s2 = s.clone();
-    browser.handle(move |_input, evt| match evt {
-        fltk::enums::Event::KeyUp => {
-            if event_key().eq(&Key::Tab) {
-                b2.take_focus().unwrap();
-                b2.select(b2.value() + 1);
-                s2.send(Event::CandidateSelect(b2.value()));
-                return true;
-            }
-            return false;
-        }
-
-        _ => false,
-    });
-
-    let s3 = s.clone();
-    browser.set_callback(move |b| {
-        s3.send(Event::CandidateSelect(b.value()));
-    });
-
-    Ok(RoftlApp {
-        app,
-        events: r,
-        send: s,
-        input,
-        browser,
-    })
-}