debug: First iteration

- Flesh out FPS counters and graph
- Add opacity slider
- Add specialized views
- Populate workspace state inspector (very basic)

src/shell/workspaces.rs

@@ -8,14 +8,14 @@ pub use smithay::{
 };
 use std::{cell::Cell, mem::MaybeUninit};
 
-const MAX_WORKSPACES: usize = 10; // TODO?
+pub const MAX_WORKSPACES: usize = 10; // TODO?
 
 pub struct ActiveWorkspace(Cell<Option<usize>>);
 impl ActiveWorkspace {
     fn new() -> Self {
         ActiveWorkspace(Cell::new(None))
     }
-    fn get(&self) -> Option<usize> {
+    pub fn get(&self) -> Option<usize> {
         self.0.get()
     }
     fn set(&self, active: usize) -> Option<usize> {
@@ -26,6 +26,7 @@ impl ActiveWorkspace {
     }
 }
 
+#[derive(Debug, PartialEq, Eq, Clone, Copy)]
 pub enum Mode {
     OutputBound,
     Global { active: usize },
@@ -44,7 +45,7 @@ impl Mode {
 pub struct Workspaces {
     mode: Mode,
     outputs: Vec<Output>,
-    spaces: [Space; MAX_WORKSPACES],
+    pub spaces: [Space; MAX_WORKSPACES],
 }
 
 const UNINIT_SPACE: MaybeUninit<Space> = MaybeUninit::uninit();
@@ -166,6 +167,11 @@ impl Workspaces {
         };
     }
 
+    #[cfg(feature = "debug")]
+    pub fn mode(&self) -> &Mode {
+        &self.mode
+    }
+
     pub fn set_mode(&mut self, mode: Mode) {
         match (&mut self.mode, mode) {
             (Mode::OutputBound, Mode::Global { .. }) => {