first commit

src/scene/object.rs

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+// Shared value types used by the dispatch and grip systems.
+
+use acadrust::types::{Color as AcadColor, LineWeight};
+use glam::Vec3;
+
+/// The kind of value held by a property row.
+#[derive(Clone, Debug, PartialEq)]
+pub enum PropValue {
+    /// Read-only display text.
+    ReadOnly(String),
+    /// Editable numeric/text field.
+    EditText(String),
+    /// Layer name — rendered as a combo_box.
+    LayerChoice(String),
+    /// Generic string choice rendered as a combo_box.
+    Choice {
+        selected: String,
+        options: Vec<String>,
+    },
+    /// ACI/RGB/ByLayer/ByBlock color — rendered as a color picker.
+    ColorChoice(AcadColor),
+    /// Color varies across the current multi-selection.
+    ColorVaries,
+    /// Line weight — rendered as a combo_box.
+    LwChoice(LineWeight),
+    /// Lineweight varies across the current multi-selection.
+    LwVaries,
+    /// Linetype name — rendered as a combo_box.
+    LinetypeChoice(String),
+    /// Boolean flag — rendered as a toggle button (e.g. Invisible).
+    BoolToggle { field: &'static str, value: bool },
+    /// Hatch pattern name — rendered as a combo_box from the catalog.
+    HatchPatternChoice(String),
+}
+
+/// A single property row in the Properties panel.
+#[derive(Clone, Debug, PartialEq)]
+pub struct Property {
+    pub label: String,
+    /// Stable field identifier used in `PropGeomInput` / `PropGeomCommit` messages.
+    pub field: &'static str,
+    pub value: PropValue,
+}
+
+/// A named section of properties (e.g. "General", "Geometry").
+#[derive(Clone, Debug, PartialEq)]
+pub struct PropSection {
+    pub title: String,
+    pub props: Vec<Property>,
+}
+
+// ── Grip types ─────────────────────────────────────────────────────────────
+
+/// Describes one grip point for an entity.
+#[derive(Clone, Copy, Debug, PartialEq, Eq)]
+pub enum GripShape {
+    Square,
+    Diamond,
+    Triangle,
+}
+
+/// Describes one grip point for an entity.
+#[derive(Clone, Debug)]
+pub struct GripDef {
+    /// Object-local identifier (stable index, unique per object instance).
+    pub id: usize,
+    /// World-space position of the grip.
+    pub world: Vec3,
+    /// `true` → midpoint grip (diamond, translates whole object).
+    /// `false` → endpoint grip (square, moves a single vertex).
+    pub is_midpoint: bool,
+    /// Visual marker shape for the grip.
+    pub shape: GripShape,
+}
+
+/// How to apply a grip drag result.
+#[derive(Clone, Debug)]
+pub enum GripApply {
+    /// Move a specific vertex to this absolute world position.
+    Absolute(Vec3),
+    /// Translate the whole object by this delta vector.
+    Translate(Vec3),
+}