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compare: stephen:3c9324b63a0af8b6b263d32f38d7c70f63b3196b
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4 Commits
ce5bb9f4af ... 3c9324b63a

Author SHA1 Message Date
stephen
3c9324b63a KDL 6.1.0 2024-12-30 03:41:58 +00:00
stephen
6d859b8b9b separate sway module 2024-12-30 03:36:05 +00:00
stephen
bec2bdc8f9 separate config module 2024-12-30 03:30:08 +00:00
stephen
b8c38da85b separate to bin and lib 2024-12-30 03:26:20 +00:00
6 changed files with 427 additions and 344 deletions
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117
Cargo.lock generated
View File

@@ -2,6 +2,18 @@
# It is not intended for manual editing.
version = 4
[[package]]
name = "autocfg"
version = "1.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ace50bade8e6234aa140d9a2f552bbee1db4d353f69b8217bc503490fc1a9f26"
[[package]]
name = "cfg-if"
version = "1.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
[[package]]
name = "itoa"
version = "1.0.14"
@@ -10,13 +22,14 @@ checksum = "d75a2a4b1b190afb6f5425f10f6a8f959d2ea0b9c2b1d79553551850539e4674"
[[package]]
name = "kdl"
version = "4.7.1"
version = "6.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e03e2e96c5926fe761088d66c8c2aee3a4352a2573f4eaca50043ad130af9117"
checksum = "a927c788db5413fbaced8fc5ac08a4a341c50766cba1d363ba3e25f3db343af0"
dependencies = [
"miette",
"nom",
"num",
"thiserror",
"winnow",
]
[[package]]
@@ -27,21 +40,21 @@ checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
[[package]]
name = "miette"
version = "5.10.0"
version = "7.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "59bb584eaeeab6bd0226ccf3509a69d7936d148cf3d036ad350abe35e8c6856e"
checksum = "317f146e2eb7021892722af37cf1b971f0a70c8406f487e24952667616192c64"
dependencies = [
"cfg-if",
"miette-derive",
"once_cell",
"thiserror",
"unicode-width",
]
[[package]]
name = "miette-derive"
version = "5.10.0"
version = "7.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "49e7bc1560b95a3c4a25d03de42fe76ca718ab92d1a22a55b9b4cf67b3ae635c"
checksum = "23c9b935fbe1d6cbd1dac857b54a688145e2d93f48db36010514d0f612d0ad67"
dependencies = [
"proc-macro2",
"quote",
@@ -49,26 +62,77 @@ dependencies = [
]
[[package]]
name = "minimal-lexical"
version = "0.2.1"
name = "num"
version = "0.4.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "68354c5c6bd36d73ff3feceb05efa59b6acb7626617f4962be322a825e61f79a"
[[package]]
name = "nom"
version = "7.1.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d273983c5a657a70a3e8f2a01329822f3b8c8172b73826411a55751e404a0a4a"
checksum = "35bd024e8b2ff75562e5f34e7f4905839deb4b22955ef5e73d2fea1b9813cb23"
dependencies = [
"memchr",
"minimal-lexical",
"num-bigint",
"num-complex",
"num-integer",
"num-iter",
"num-rational",
"num-traits",
]
[[package]]
name = "once_cell"
version = "1.20.2"
name = "num-bigint"
version = "0.4.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1261fe7e33c73b354eab43b1273a57c8f967d0391e80353e51f764ac02cf6775"
checksum = "a5e44f723f1133c9deac646763579fdb3ac745e418f2a7af9cd0c431da1f20b9"
dependencies = [
"num-integer",
"num-traits",
]
[[package]]
name = "num-complex"
version = "0.4.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "73f88a1307638156682bada9d7604135552957b7818057dcef22705b4d509495"
dependencies = [
"num-traits",
]
[[package]]
name = "num-integer"
version = "0.1.46"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7969661fd2958a5cb096e56c8e1ad0444ac2bbcd0061bd28660485a44879858f"
dependencies = [
"num-traits",
]
[[package]]
name = "num-iter"
version = "0.1.45"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1429034a0490724d0075ebb2bc9e875d6503c3cf69e235a8941aa757d83ef5bf"
dependencies = [
"autocfg",
"num-integer",
"num-traits",
]
[[package]]
name = "num-rational"
version = "0.4.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f83d14da390562dca69fc84082e73e548e1ad308d24accdedd2720017cb37824"
dependencies = [
"num-bigint",
"num-integer",
"num-traits",
]
[[package]]
name = "num-traits"
version = "0.2.19"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "071dfc062690e90b734c0b2273ce72ad0ffa95f0c74596bc250dcfd960262841"
dependencies = [
"autocfg",
]
[[package]]
name = "proc-macro2"
@@ -179,6 +243,15 @@ version = "0.1.14"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7dd6e30e90baa6f72411720665d41d89b9a3d039dc45b8faea1ddd07f617f6af"
[[package]]
name = "winnow"
version = "0.6.20"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "36c1fec1a2bb5866f07c25f68c26e565c4c200aebb96d7e55710c19d3e8ac49b"
dependencies = [
"memchr",
]
[[package]]
name = "xdg"
version = "2.5.2"

2
Cargo.toml
View File

@@ -13,6 +13,6 @@ serde = { version = "1.0", features = ["derive"] }
serde_json = "1.0.133"
# for config file
kdl = "4.7.1"
kdl = "6.1.0"
xdg = "2.5.2"

91
src/config.rs Normal file
View File

@@ -0,0 +1,91 @@
use std::collections::HashMap;
use std::fs;
use kdl::KdlDocument;
/// Configuration for swayout.
pub struct Config {
/// Monitor name is independent of output name. It can be anything.
pub monitors: HashMap<String, Monitor>,
/// Definition of layouts: a map of the layout name to the outputs.
/// The outputs is a map of the monitor name (in `monitors`) to the configuration
/// of that monitor for this layout.
/// Available outputs that do not match a monitor in the map are disabled.
pub layouts: HashMap<String, HashMap<String, OutputConfig>>,
}
/// Defines a monitor by make, model, and serial.
pub struct Monitor {
pub make: String,
pub model: String,
pub serial: String,
}
/// Configuration for an enabled output.
pub struct OutputConfig {
/// mode. See man 5 sway-output
pub mode: String,
/// scale. See man 5 sway-output
pub scale: String,
/// x value for position. See man 5 sway-output
pub x: u16,
/// y value for position. See man 5 sway-output
pub y: u16,
/// transform. See man 5 sway-output
pub transform: String,
}
/// Get a `Config` from ~/.config/swayout/config.kdl.
/// (It really uses XDG config dirs.)
pub fn get_config() -> Config {
let xdg_dirs = xdg::BaseDirectories::with_prefix("swayout").unwrap();
if let Some(path) = xdg_dirs.find_config_file("config.kdl") {
let kdl = fs::read_to_string(path).expect("error reading file");
parse_config(kdl)
} else {
// no config files, use an empty rules
Config {
monitors: HashMap::new(),
layouts: HashMap::new(),
}
}
}
fn parse_config(kdl:String) -> Config {
let doc:KdlDocument = kdl.parse().expect("failed to parse config KDL");
let monitors:HashMap<String,Monitor> = doc.nodes().iter()
.filter(|node| node.name().value() == "monitor")
.map(|monitor_node| {
let name = String::from(monitor_node[0].as_string().unwrap());
let monitor = Monitor {
make : String::from(monitor_node["make"].as_string().unwrap()),
model : String::from(monitor_node["model"].as_string().unwrap()),
serial : String::from(monitor_node["serial"].as_string().unwrap()),
};
(name, monitor)
})
.collect();
let layouts:HashMap<String,HashMap<String,OutputConfig>> = doc.nodes().iter()
.filter(|node| node.name().value() == "layout")
.map(|layout_node| {
let layout_name = String::from(layout_node[0].as_string().unwrap());
let monitor_name_to_output_config:HashMap<String,OutputConfig> = layout_node
.children().unwrap().nodes().iter()
.map(|output_node| {
let output = String::from(output_node[0].as_string().unwrap());
let output_config = OutputConfig {
mode : String::from(output_node["mode"].as_string().unwrap()),
scale : String::from(output_node["scale"].as_string().unwrap()),
transform : String::from(output_node["transform"].as_string().unwrap()),
x : output_node["x"].as_integer().unwrap() as u16,
y : output_node["y"].as_integer().unwrap() as u16,
};
(output, output_config)
})
.collect();
(layout_name,monitor_name_to_output_config)
})
.collect();
Config { monitors, layouts }
}

121
src/lib.rs Normal file
View File

@@ -0,0 +1,121 @@
use std::collections::HashMap;
mod config;
use crate::config::{get_config,OutputConfig};
mod sway;
use crate::sway::{apply_outputs,get_outputs};
/// Determine the available layout names.
/// Return one layout for each layout defined in the configuration file
/// for which all outputs are available,
/// one for each monitor defined in the configuration file (for using just that monitor),
/// and one for each available output that is not a configured monitor (for using just that output).
fn get_layouts() -> Vec<String> {
let available_outputs = get_outputs();
let config = get_config();
// Get the names of monitors that are available (that match an available output)
let available_monitor_names:Vec<&String> = config.monitors.iter()
.filter(|(_monitor_name,monitor)|
available_outputs.iter().any(|output|
monitor.make == output.make
&& monitor.model == output.model
&& output.serial == monitor.serial
)
)
.map(|(monitor_name,_monitor)| monitor_name)
.collect();
let mut layout_names: Vec<String> = Vec::new();
// Add each layout defined in the config file for which all outputs are available
config.layouts.iter().for_each(|(layout_name, layout)| {
if layout
.iter()
.all(|(output_name, _output)| available_monitor_names.contains(&output_name))
{
layout_names.push(String::from(layout_name))
}
});
// add each individual output (by monitor name if the monitor is defined, else by output name)
available_outputs.iter().for_each(|output| {
// if there is a monitor for the output, use the monitor name, else use the output name
let monitor_opt = config.monitors.iter()
.find(|(_monitor_name, monitor)| {
monitor.make == output.make
&& monitor.model == output.model
&& monitor.serial == output.serial
});
if let Some((monitor_name, _monitor)) = monitor_opt {
layout_names.push(String::from(monitor_name));
} else {
layout_names.push(String::from(&output.name));
}
});
layout_names
}
/// Print the name of each layout to standard out, one per line
pub fn print_layout_names() {
get_layouts().iter().for_each(|layout| println!("{layout}"))
}
/// Apply the specified layout.
/// layout_name may be the name of a layout in the config, the name of a monitor,
/// or the name of an output.
pub fn apply_layout(layout_name: &String) {
let rules = get_config();
let outputs = get_outputs();
// Map of output name to config for all outputs to enable.
// (All outputs not in this map will be disabled.)
let mut output_config_map: HashMap<&String, &OutputConfig> = HashMap::new();
// First check if the layout is defined in the rules
let opt_layout = rules.layouts.get(layout_name);
if let Some(layout) = opt_layout {
// The layout is defined in the rules.
layout.iter().for_each(|(monitor_name, output_config)| {
let monitor = &rules.monitors[monitor_name];
// find the output for the monitor to get the output name.
let output_opt = outputs.iter().find(|output| {
output.make == monitor.make
&& output.model == monitor.model
&& output.serial == monitor.serial
});
if let Some(output) = output_opt {
output_config_map.insert(&output.name, &output_config);
} else {
panic!("Missing output for monitor {monitor_name}");
}
});
} else {
// The layout is not defined in the rules.
// See if it is a monitor name...
if let Some(monitor) = rules.monitors.get(layout_name) {
// It is a monitor name. Find the matching output...
if let Some(output) = outputs.iter().find(|output| {
output.make == monitor.make && output.model == monitor.model
&& output.serial == monitor.serial
}) {
output_config_map.insert(&output.name, &output.output_config);
} else {
panic!("could not find output for monitor {layout_name}")
}
} else {
// See if it is an output name...
if let Some(output) = outputs.iter()
.find(|output| &output.name == layout_name) {
output_config_map.insert(&output.name, &output.output_config);
} else {
panic!("could not find layout, monitor, or output {layout_name}")
}
}
}
apply_outputs(&outputs, &output_config_map);
}

323
src/main.rs
View File

@@ -1,332 +1,13 @@
use kdl::KdlDocument;
use serde_json::{from_str, Value};
use std::collections::HashMap;
use std::env;
use std::process::Command;
use std::{fs, str};
/// Configuration for swayout.
struct Config {
/// Monitor name is independent of output name. It can be anything.
monitors: HashMap<String, Monitor>,
/// Definition of layouts: a map of the layout name to the outputs.
/// The outputs is a map of the monitor name (in `monitors`) to the configuration
/// of that monitor for this layout.
/// Available outputs that do not match a monitor in the map are disabled.
layouts: HashMap<String, HashMap<String, OutputConfig>>,
}
/// Defines a monitor by make, model, and serial.
struct Monitor {
make: String,
model: String,
serial: String,
}
/// Configuration for an enabled output.
struct OutputConfig {
/// mode. See man 5 sway-output
mode: String,
/// scale. See man 5 sway-output
scale: String,
/// x value for position. See man 5 sway-output
x: u16,
/// y value for position. See man 5 sway-output
y: u16,
/// transform. See man 5 sway-output
transform: String,
}
/// An output, as returned by `swaymsg -t get_outputs`.
struct Output {
/// output name, according to sway
name: String,
make: String,
model: String,
serial: String,
output_config: OutputConfig,
}
fn main() {
let args: Vec<String> = env::args().collect();
if args.len() == 1 {
// first arg is executable
print_layout_names();
swayout::print_layout_names();
} else if args.len() == 2 {
apply_layout(&args[1]);
swayout::apply_layout(&args[1]);
} else {
panic!("Usage: {} [layout]", args[0].as_str());
}
}
/// Get all outputs currently available, according to `swaymsg -t get_outputs`.
fn get_outputs() -> Vec<Output> {
let output = Command::new("swaymsg")
.arg("-t")
.arg("get_outputs")
.output()
.expect("swaymsg -t get_outputs failed");
let json_string = str::from_utf8(&output.stdout).unwrap();
let json = from_str(json_string).unwrap();
if let Value::Array(outputs) = json {
outputs
.iter()
.map(|output_json| Output {
name: String::from(output_json["name"].as_str().unwrap()),
make: String::from(output_json["make"].as_str().unwrap()),
model: String::from(output_json["model"].as_str().unwrap()),
serial: String::from(output_json["serial"].as_str().unwrap()),
output_config: OutputConfig {
mode: get_mode(output_json),
scale: String::from("1.0"),
x: 0,
y: 0,
transform: String::from("normal"),
},
})
.collect()
} else {
panic!("outputs json was not an array");
}
}
/// Parse the mode from the output JSON into a string suitable for the mode param for sway-output.
/// This will go into `OutputConfig.mode`.
fn get_mode(output: &Value) -> String {
if let Value::Array(modes) = &output["modes"] {
if let Some(mode) = modes.first() {
let width = mode["width"].as_i64().unwrap().to_string();
let height = mode["height"].as_i64().unwrap().to_string();
let mut out: String = String::new();
out.push_str(&width);
out.push_str("x");
out.push_str(&height);
out
} else {
panic!("no modes")
}
} else {
panic!("modes not an array")
}
}
/// Get a `Config` from ~/.config/swayout/config.kdl.
/// (It really uses XDG config dirs.)
fn get_config() -> Config {
let xdg_dirs = xdg::BaseDirectories::with_prefix("swayout").unwrap();
if let Some(path) = xdg_dirs.find_config_file("config.kdl") {
let kdl = fs::read_to_string(path).expect("error reading file");
parse_config(kdl)
} else {
// no config files, use an empty rules
Config {
monitors: HashMap::new(),
layouts: HashMap::new(),
}
}
}
fn parse_config(kdl:String) -> Config {
let doc:KdlDocument = kdl.parse().expect("failed to parse config KDL");
let monitors:HashMap<String,Monitor> = doc.nodes().iter()
.filter(|node| node.name().value() == "monitor")
.map(|monitor_node| {
let name = String::from(monitor_node[0].as_string().unwrap());
let monitor = Monitor {
make : String::from(monitor_node["make"].as_string().unwrap()),
model : String::from(monitor_node["model"].as_string().unwrap()),
serial : String::from(monitor_node["serial"].as_string().unwrap()),
};
(name, monitor)
})
.collect();
let layouts:HashMap<String,HashMap<String,OutputConfig>> = doc.nodes().iter()
.filter(|node| node.name().value() == "layout")
.map(|layout_node| {
let layout_name = String::from(layout_node[0].as_string().unwrap());
let monitor_name_to_output_config:HashMap<String,OutputConfig> = layout_node
.children().unwrap().nodes().iter()
.map(|output_node| {
let output = String::from(output_node[0].as_string().unwrap());
let output_config = OutputConfig {
mode : String::from(output_node["mode"].as_string().unwrap()),
scale : String::from(output_node["scale"].as_string().unwrap()),
transform : String::from(output_node["transform"].as_string().unwrap()),
x : output_node["x"].as_i64().unwrap() as u16,
y : output_node["y"].as_i64().unwrap() as u16,
};
(output, output_config)
})
.collect();
(layout_name,monitor_name_to_output_config)
})
.collect();
Config { monitors, layouts }
}
/// Determine the available layout names.
/// Return one layout for each layout defined in the configuration file
/// for which all outputs are available,
/// one for each monitor defined in the configuration file (for using just that monitor),
/// and one for each available output that is not a configured monitor (for using just that output).
fn get_layouts() -> Vec<String> {
let available_outputs = get_outputs();
let config = get_config();
// Get the names of monitors that are available (that match an available output)
let available_monitor_names:Vec<&String> = config.monitors.iter()
.filter(|(_monitor_name,monitor)|
available_outputs.iter().any(|output|
monitor.make == output.make
&& monitor.model == output.model
&& output.serial == monitor.serial
)
)
.map(|(monitor_name,_monitor)| monitor_name)
.collect();
let mut layout_names: Vec<String> = Vec::new();
// Add each layout defined in the config file for which all outputs are available
config.layouts.iter().for_each(|(layout_name, layout)| {
if layout
.iter()
.all(|(output_name, _output)| available_monitor_names.contains(&output_name))
{
layout_names.push(String::from(layout_name))
}
});
// add each individual output (by monitor name if the monitor is defined, else by output name)
available_outputs.iter().for_each(|output| {
// if there is a monitor for the output, use the monitor name, else use the output name
let monitor_opt = config.monitors.iter()
.find(|(_monitor_name, monitor)| {
monitor.make == output.make
&& monitor.model == output.model
&& monitor.serial == output.serial
});
if let Some((monitor_name, _monitor)) = monitor_opt {
layout_names.push(String::from(monitor_name));
} else {
layout_names.push(String::from(&output.name));
}
});
layout_names
}
/// Print the name of each layout to standard out, one per line
fn print_layout_names() {
get_layouts().iter().for_each(|layout| println!("{layout}"))
}
/// Apply the specified layout.
/// layout_name may be the name of a layout in the config, the name of a monitor,
/// or the name of an output.
fn apply_layout(layout_name: &String) {
let rules = get_config();
let outputs = get_outputs();
// Map of output name to config for all outputs to enable.
// (All outputs not in this map will be disabled.)
let mut output_config_map: HashMap<&String, &OutputConfig> = HashMap::new();
// First check if the layout is defined in the rules
let opt_layout = rules.layouts.get(layout_name);
if let Some(layout) = opt_layout {
// The layout is defined in the rules.
layout.iter().for_each(|(monitor_name, output_config)| {
let monitor = &rules.monitors[monitor_name];
// find the output for the monitor to get the output name.
let output_opt = outputs.iter().find(|output| {
output.make == monitor.make
&& output.model == monitor.model
&& output.serial == monitor.serial
});
if let Some(output) = output_opt {
output_config_map.insert(&output.name, &output_config);
} else {
panic!("Missing output for monitor {monitor_name}");
}
});
} else {
// The layout is not defined in the rules.
// See if it is a monitor name...
if let Some(monitor) = rules.monitors.get(layout_name) {
// It is a monitor name. Find the matching output...
if let Some(output) = outputs.iter().find(|output| {
output.make == monitor.make && output.model == monitor.model
&& output.serial == monitor.serial
}) {
output_config_map.insert(&output.name, &output.output_config);
} else {
panic!("could not find output for monitor {layout_name}")
}
} else {
// See if it is an output name...
if let Some(output) = outputs.iter()
.find(|output| &output.name == layout_name) {
output_config_map.insert(&output.name, &output.output_config);
} else {
panic!("could not find layout, monitor, or output {layout_name}")
}
}
}
apply_outputs(&outputs, &output_config_map);
}
/// Apply the specified outputs. Enable all outputs in [outputs], disable others.
fn apply_outputs(all_outputs: &Vec<Output>, outputs: &HashMap<&String, &OutputConfig>) {
// set enabled outputs first, then set disabled outputs.
// That way if some work before an error, you have at least one output enabled.
// for outputs to be enabled: map of output name to config
let mut enabled: HashMap<&String,&OutputConfig> = HashMap::new();
// for outputs to be disabled: output names
let mut disabled: Vec<&String> = Vec::new();
all_outputs.iter().for_each(|output| {
if let Some(output_config) = outputs.get(&output.name) {
enabled.insert(&output.name, &output_config);
} else {
disabled.push(&output.name);
}
});
let mut cmd = Command::new("swaymsg");
enabled.iter().for_each(|(output_name,output_config)| {
cmd.arg("output");
cmd.arg(&output_name);
cmd.arg("enable");
cmd.arg("mode");
cmd.arg(&output_config.mode);
cmd.arg("scale");
cmd.arg(&output_config.scale);
cmd.arg("pos");
cmd.arg(&output_config.x.to_string());
cmd.arg(&output_config.y.to_string());
cmd.arg("transform");
cmd.arg(&output_config.transform);
cmd.arg(",");
});
disabled.iter().for_each(|output_name| {
cmd.arg("output");
cmd.arg(&output_name);
cmd.arg("disable");
cmd.arg(",");
});
// print what we are about to do.
cmd.get_args()
.for_each(|arg| print!("{} ", arg.to_str().unwrap()));
cmd.output().expect("swaymsg output failed");
}

117
src/sway.rs Normal file
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use std::collections::HashMap;
use std::process::Command;
use std::str::from_utf8;
use serde_json::{from_str, Value};
use crate::config::OutputConfig;
/// An output, as returned by `swaymsg -t get_outputs`.
pub struct Output {
/// output name, according to sway
pub name: String,
pub make: String,
pub model: String,
pub serial: String,
pub output_config: OutputConfig,
}
/// Get all outputs currently available, according to `swaymsg -t get_outputs`.
pub fn get_outputs() -> Vec<Output> {
let output = Command::new("swaymsg")
.arg("-t")
.arg("get_outputs")
.output()
.expect("swaymsg -t get_outputs failed");
let json_string = from_utf8(&output.stdout).unwrap();
let json = from_str(json_string).unwrap();
if let Value::Array(outputs) = json {
outputs
.iter()
.map(|output_json| Output {
name: String::from(output_json["name"].as_str().unwrap()),
make: String::from(output_json["make"].as_str().unwrap()),
model: String::from(output_json["model"].as_str().unwrap()),
serial: String::from(output_json["serial"].as_str().unwrap()),
output_config: OutputConfig {
mode: get_mode(output_json),
scale: String::from("1.0"),
x: 0,
y: 0,
transform: String::from("normal"),
},
})
.collect()
} else {
panic!("outputs json was not an array");
}
}
/// Parse the mode from the output JSON into a string suitable for the mode param for sway-output.
/// This will go into `OutputConfig.mode`.
fn get_mode(output: &Value) -> String {
if let Value::Array(modes) = &output["modes"] {
if let Some(mode) = modes.first() {
let width = mode["width"].as_i64().unwrap().to_string();
let height = mode["height"].as_i64().unwrap().to_string();
let mut out: String = String::new();
out.push_str(&width);
out.push_str("x");
out.push_str(&height);
out
} else {
panic!("no modes")
}
} else {
panic!("modes not an array")
}
}
/// Apply the specified outputs. Enable all outputs in [outputs], disable others.
pub fn apply_outputs(all_outputs: &Vec<Output>, outputs: &HashMap<&String, &OutputConfig>) {
// set enabled outputs first, then set disabled outputs.
// That way if some work before an error, you have at least one output enabled.
// for outputs to be enabled: map of output name to config
let mut enabled: HashMap<&String,&OutputConfig> = HashMap::new();
// for outputs to be disabled: output names
let mut disabled: Vec<&String> = Vec::new();
all_outputs.iter().for_each(|output| {
if let Some(output_config) = outputs.get(&output.name) {
enabled.insert(&output.name, &output_config);
} else {
disabled.push(&output.name);
}
});
let mut cmd = Command::new("swaymsg");
enabled.iter().for_each(|(output_name,output_config)| {
cmd.arg("output");
cmd.arg(&output_name);
cmd.arg("enable");
cmd.arg("mode");
cmd.arg(&output_config.mode);
cmd.arg("scale");
cmd.arg(&output_config.scale);
cmd.arg("pos");
cmd.arg(&output_config.x.to_string());
cmd.arg(&output_config.y.to_string());
cmd.arg("transform");
cmd.arg(&output_config.transform);
cmd.arg(",");
});
disabled.iter().for_each(|output_name| {
cmd.arg("output");
cmd.arg(&output_name);
cmd.arg("disable");
cmd.arg(",");
});
// print what we are about to do.
cmd.get_args()
.for_each(|arg| print!("{} ", arg.to_str().unwrap()));
cmd.output().expect("swaymsg output failed");
}