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use crate::errors::WmError;
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use x11rb::protocol::xinerama::ConnectionExt as _;
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use x11rb::protocol::xproto::{Screen, Window};
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use x11rb::rust_connection::RustConnection;
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type WmResult<T> = Result<T, WmError>;
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#[derive(Debug, Clone)]
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pub struct Monitor {
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pub layout_symbol: String,
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pub master_factor: f32,
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pub num_master: i32,
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pub monitor_number: usize,
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pub bar_y_position: i32,
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pub screen_x: i32,
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pub screen_y: i32,
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pub screen_width: i32,
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pub screen_height: i32,
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pub window_area_x: i32,
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pub window_area_y: i32,
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pub window_area_width: i32,
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pub window_area_height: i32,
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pub gap_inner_horizontal: i32,
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pub gap_inner_vertical: i32,
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pub gap_outer_horizontal: i32,
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pub gap_outer_vertical: i32,
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pub selected_tags_index: usize,
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pub selected_layout_index: usize,
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pub tagset: [u32; 2],
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pub show_bar: bool,
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pub top_bar: bool,
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pub clients_head: Option<Window>,
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pub selected_client: Option<Window>,
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pub stack_head: Option<Window>,
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pub bar_window: Option<Window>,
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pub layout_indices: [usize; 2],
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}
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impl Monitor {
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pub fn new(x: i32, y: i32, width: u32, height: u32) -> Self {
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Self {
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layout_symbol: String::from("[]"),
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master_factor: 0.55,
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num_master: 1,
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monitor_number: 0,
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bar_y_position: 0,
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screen_x: x,
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screen_y: y,
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screen_width: width as i32,
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screen_height: height as i32,
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window_area_x: x,
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window_area_y: y,
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window_area_width: width as i32,
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window_area_height: height as i32,
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gap_inner_horizontal: 3,
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gap_inner_vertical: 3,
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gap_outer_horizontal: 3,
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gap_outer_vertical: 3,
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selected_tags_index: 0,
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selected_layout_index: 0,
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tagset: [1, 1],
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show_bar: true,
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top_bar: true,
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clients_head: None,
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selected_client: None,
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stack_head: None,
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bar_window: None,
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layout_indices: [0, 1],
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}
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}
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pub fn contains_point(&self, x: i32, y: i32) -> bool {
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x >= self.screen_x
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&& x < self.screen_x + self.screen_width
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&& y >= self.screen_y
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&& y < self.screen_y + self.screen_height
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}
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}
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pub fn detect_monitors(
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connection: &RustConnection,
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screen: &Screen,
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_root: Window,
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) -> WmResult<Vec<Monitor>> {
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let fallback_monitors = || {
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vec![Monitor::new(
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0,
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0,
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screen.width_in_pixels as u32,
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screen.height_in_pixels as u32,
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)]
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};
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let mut monitors = Vec::<Monitor>::new();
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let xinerama_active = connection
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.xinerama_is_active()
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.ok()
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.and_then(|cookie| cookie.reply().ok())
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.map_or(false, |reply| reply.state != 0);
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if xinerama_active {
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let Ok(xinerama_cookie) = connection.xinerama_query_screens() else {
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return Ok(fallback_monitors());
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};
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let Ok(xinerama_reply) = xinerama_cookie.reply() else {
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return Ok(fallback_monitors());
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};
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for screen_info in &xinerama_reply.screen_info {
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let has_valid_dimensions = screen_info.width > 0 && screen_info.height > 0;
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if !has_valid_dimensions {
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continue;
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}
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let x_position = screen_info.x_org as i32;
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let y_position = screen_info.y_org as i32;
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let width_in_pixels = screen_info.width as u32;
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let height_in_pixels = screen_info.height as u32;
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let is_duplicate_monitor = monitors.iter().any(|monitor| {
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monitor.screen_x == x_position
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&& monitor.screen_y == y_position
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&& monitor.screen_width == width_in_pixels as i32
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&& monitor.screen_height == height_in_pixels as i32
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});
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if !is_duplicate_monitor {
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monitors.push(Monitor::new(
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x_position,
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y_position,
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width_in_pixels,
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height_in_pixels,
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));
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}
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}
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}
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if monitors.is_empty() {
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monitors = fallback_monitors();
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}
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monitors.sort_by(|a, b| match a.screen_y.cmp(&b.screen_y) {
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std::cmp::Ordering::Equal => a.screen_x.cmp(&b.screen_x),
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other => other,
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});
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Ok(monitors)
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}
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