Add constraint bar visibility command

src/modules/draw/select.rs

@@ -68,6 +68,21 @@ impl SelectObjectsCommand {
         }
     }
 
+    /// Standard selection behavior routed to a private apply command while
+    /// retaining the public command name in the visible prompt.
+    pub fn routed(prompt_cmd: &str, pending_cmd: &str) -> Self {
+        Self {
+            prompt_cmd: prompt_cmd.to_string(),
+            pending_cmd: pending_cmd.to_string(),
+            handles: Vec::new(),
+            commit_on_enter: true,
+            show_options: true,
+            pick: None,
+            pick_crossing: true,
+            auto_constrain_settings: false,
+        }
+    }
+
     /// Single-object variant: the first completed selection action applies
     /// immediately, with no Enter (used by commands that act on one object).
     pub fn instant(pending_cmd: &str) -> Self {

src/modules/parametric/constraint_bar.rs

@@ -0,0 +1,66 @@
+use acadrust::Handle;
+use glam::DVec3;
+
+use crate::command::{CadCommand, CmdOption, CmdResult};
+
+pub struct ConstraintBarOptionCommand {
+    handles: Vec<Handle>,
+}
+
+impl ConstraintBarOptionCommand {
+    pub fn new(handles: Vec<Handle>) -> Self {
+        Self { handles }
+    }
+
+    fn finish(&mut self, command: &str) -> CmdResult {
+        CmdResult::Relaunch(command.to_string(), std::mem::take(&mut self.handles))
+    }
+}
+
+impl CadCommand for ConstraintBarOptionCommand {
+    fn name(&self) -> &'static str {
+        "CONSTRAINTBAR"
+    }
+
+    fn prompt(&self) -> String {
+        "CONSTRAINTBAR  Enter an option [Show/Hide/Reset] <Show>:".to_string()
+    }
+
+    fn options(&self) -> Vec<CmdOption> {
+        vec![
+            CmdOption::new("Show", "S"),
+            CmdOption::new("Hide", "H"),
+            CmdOption::new("Reset", "R"),
+        ]
+    }
+
+    fn wants_text_input(&self) -> bool {
+        true
+    }
+
+    fn on_text_input(&mut self, text: &str) -> Option<CmdResult> {
+        let keyword = text.trim().trim_start_matches('_').to_ascii_uppercase();
+        match keyword.as_str() {
+            "S" | "SHOW" => Some(self.finish("GCSHOW")),
+            "H" | "HIDE" => Some(self.finish("GCHIDE")),
+            "R" | "RESET" => Some(self.finish("CONSTRAINTBAR_RESET")),
+            _ => None,
+        }
+    }
+
+    fn on_point(&mut self, _point: DVec3) -> CmdResult {
+        CmdResult::NeedPoint
+    }
+
+    fn on_enter(&mut self) -> CmdResult {
+        self.finish("GCSHOW")
+    }
+
+    fn on_escape(&mut self) -> CmdResult {
+        CmdResult::Cancel
+    }
+}
+
+inventory::submit!(crate::command::CommandRegistration {
+    names: &["CONSTRAINTBAR"]
+});

src/modules/parametric/mod.rs

@@ -3,6 +3,7 @@
 //! resulting constraints through the geometry kernel.
 
 mod coincident;
+mod constraint_bar;
 mod equal_distance;
 mod geom_constraint;
 #[path = "perpendicular.rs"]
@@ -13,6 +14,7 @@ mod tangent_command;
 mod tools;
 mod value;
 pub use coincident::{coincident_tool, CoincidentConstraintCommand};
+pub use constraint_bar::ConstraintBarOptionCommand;
 pub use equal_distance::{equal_distance_tool, EqualDistanceConstraintCommand};
 pub use geom_constraint::GeomConstraintCommand;
 pub use perpendicular_command::{PerpendicularConstraintCommand, PerpendicularPick};