add wlx-common lib, move GeneralConfig into it

wlx-overlay-s/src/windowing/window.rs

@@ -1,9 +1,9 @@
 use glam::{Affine3A, Mat3A, Quat, Vec3, Vec3A};
-use serde::{Deserialize, Serialize};
 use std::{f32::consts::PI, sync::Arc};
+use wlx_common::windowing::{OverlayWindowState, Positioning};
 
 use crate::{
-    state::{AppState, LeftRight},
+    state::AppState,
     subsystem::input::KeyboardFocus,
     windowing::{
         backend::{FrameMeta, OverlayBackend, RenderResources, ShouldRender},
@@ -11,33 +11,6 @@ use crate::{
     },
 };
 
-#[derive(Clone, Copy, Debug, Default, Serialize, Deserialize)]
-pub enum Positioning {
-    /// Stays in place, recenters relative to HMD
-    #[default]
-    Floating,
-    /// Stays in place, recenters relative to anchor. Follows anchor during anchor grab.
-    Anchored,
-    /// Same as anchor but paused due to interaction
-    AnchoredPaused,
-    /// Stays in place, no recentering
-    Static,
-    /// Following HMD
-    FollowHead { lerp: f32 },
-    /// Normally follows HMD, but paused due to interaction
-    FollowHeadPaused { lerp: f32 },
-    /// Following hand
-    FollowHand { hand: LeftRight, lerp: f32 },
-    /// Normally follows hand, but paused due to interaction
-    FollowHandPaused { hand: LeftRight, lerp: f32 },
-}
-
-impl Positioning {
-    pub const fn moves_with_space(self) -> bool {
-        matches!(self, Self::Floating | Self::Anchored | Self::Static)
-    }
-}
-
 pub struct OverlayWindowData<T> {
     pub config: OverlayWindowConfig,
     pub data: T,
@@ -261,53 +234,20 @@ pub fn realign(transform: &mut Affine3A, hmd: &Affine3A) {
     transform.matrix3 = Mat3A::from_cols(col_x, col_y, col_z).mul_scalar(scale) * rot;
 }
 
-// Contains the window state for a given set
-#[derive(Clone, Serialize, Deserialize)]
-#[serde(default)]
-pub struct OverlayWindowState {
-    pub transform: Affine3A,
-    pub alpha: f32,
-    pub grabbable: bool,
-    pub interactable: bool,
-    pub positioning: Positioning,
-    pub curvature: Option<f32>,
-    pub additive: bool,
-    pub saved_transform: Option<Affine3A>,
-}
-
-impl Default for OverlayWindowState {
-    fn default() -> Self {
-        Self {
-            grabbable: false,
-            interactable: false,
-            alpha: 1.0,
-            positioning: Positioning::Floating,
-            curvature: None,
-            transform: Affine3A::IDENTITY,
-            additive: false,
-            saved_transform: None,
+pub fn save_transform(state: &mut OverlayWindowState, app: &mut AppState) -> bool {
+    let parent_transform = match state.positioning {
+        Positioning::Floating => snap_upright(app.input_state.hmd, Vec3A::Y),
+        Positioning::FollowHead { .. } | Positioning::FollowHeadPaused { .. } => {
+            app.input_state.hmd
         }
-    }
-}
-
-impl OverlayWindowState {
-    pub fn save_transform(&mut self, app: &mut AppState) -> bool {
-        let parent_transform = match self.positioning {
-            Positioning::Floating => snap_upright(app.input_state.hmd, Vec3A::Y),
-            Positioning::FollowHead { .. } | Positioning::FollowHeadPaused { .. } => {
-                app.input_state.hmd
-            }
-            Positioning::FollowHand { hand, .. } | Positioning::FollowHandPaused { hand, .. } => {
-                app.input_state.pointers[hand as usize].pose
-            }
-            Positioning::Anchored | Positioning::AnchoredPaused => {
-                snap_upright(app.anchor, Vec3A::Y)
-            }
-            Positioning::Static => return false,
-        };
-
-        self.saved_transform = Some(parent_transform.inverse() * self.transform);
-
-        true
-    }
+        Positioning::FollowHand { hand, .. } | Positioning::FollowHandPaused { hand, .. } => {
+            app.input_state.pointers[hand as usize].pose
+        }
+        Positioning::Anchored | Positioning::AnchoredPaused => snap_upright(app.anchor, Vec3A::Y),
+        Positioning::Static => return false,
+    };
+
+    state.saved_transform = Some(parent_transform.inverse() * state.transform);
+
+    true
 }