first commit

src/command/matchprop.rs

@@ -0,0 +1,82 @@
+// MatchPropCommand — two-phase match properties.
+//
+// Phase 1: user picks the SOURCE object (single entity pick).
+// Phase 2: user selects DESTINATION objects (multi-select, Enter to finish).
+// Result:  CmdResult::MatchProperties { dest, src }
+
+use acadrust::Handle;
+use glam::Vec3;
+
+use crate::command::{CadCommand, CmdResult};
+use crate::scene::wire_model::WireModel;
+
+pub struct MatchPropCommand {
+    /// Source handle; NULL until phase 1 is complete.
+    src: Handle,
+}
+
+impl MatchPropCommand {
+    pub fn new() -> Self {
+        Self { src: Handle::NULL }
+    }
+
+    fn phase1_done(&self) -> bool {
+        !self.src.is_null()
+    }
+}
+
+impl CadCommand for MatchPropCommand {
+    fn name(&self) -> &'static str {
+        "MATCHPROP"
+    }
+
+    fn prompt(&self) -> String {
+        if !self.phase1_done() {
+            "MATCHPROP  Select source object:".into()
+        } else {
+            "MATCHPROP  Select destination objects (Enter to apply):".into()
+        }
+    }
+
+    // ── Phase 1: single entity pick ───────────────────────────────────────
+
+    fn needs_entity_pick(&self) -> bool {
+        !self.phase1_done()
+    }
+
+    fn on_entity_pick(&mut self, handle: Handle, _pt: Vec3) -> CmdResult {
+        if handle.is_null() {
+            return CmdResult::NeedPoint; // nothing hit, keep waiting
+        }
+        self.src = handle;
+        CmdResult::NeedPoint // move to phase 2 (selection gathering)
+    }
+
+    // ── Phase 2: destination selection gathering ──────────────────────────
+
+    fn is_selection_gathering(&self) -> bool {
+        self.phase1_done()
+    }
+
+    fn on_selection_complete(&mut self, handles: Vec<Handle>) -> CmdResult {
+        if handles.is_empty() {
+            return CmdResult::NeedPoint;
+        }
+        CmdResult::MatchProperties {
+            dest: handles,
+            src: self.src,
+        }
+    }
+
+    fn on_enter(&mut self) -> CmdResult {
+        CmdResult::Cancel
+    }
+
+    fn on_point(&mut self, _pt: Vec3) -> CmdResult {
+        CmdResult::NeedPoint
+    }
+
+    fn on_hover_entity(&mut self, _handle: Handle, _pt: Vec3) -> Vec<WireModel> {
+        vec![]
+    }
+}