feat(tablestyle): editable General section (margins, flow-suppress toggles)

The Table Style editor's General fields are now editable: H/V cell margins
(buffers + Apply) and title/header row-suppressed toggles, loaded from the
selected style on select. Per-cell (Data/Header/Title) text/fill/border
editing remains a follow-up.

Co-Authored-By: Claude Opus 4.8 <[email protected]>

src/app/mod.rs

@@ -296,6 +296,9 @@ pub(super) struct OpenCADStudio {
 
     // ── TableStyle Dialog ─────────────────────────────────────────────────
     tablestyle_selected: String,
+    /// Edit buffers for the table style's general margins.
+    ts_hmargin: String,
+    ts_vmargin: String,
 
     // ── TextStyle Font Browser ────────────────────────────────────────────
     textstyle_selected: String,
@@ -987,6 +990,13 @@ pub enum Message {
     TableStyleDialogDelete,
     /// Toggle the Annotative flag on the selected table style.
     TableStyleToggleAnnotative,
+    /// Toggle a boolean flag (title_suppressed / header_suppressed / flow) on
+    /// the selected table style.
+    TableStyleToggle(&'static str),
+    /// Update a general edit buffer (hmargin / vmargin).
+    TableStyleEdit { field: &'static str, value: String },
+    /// Write the general edit buffers back into the selected table style.
+    TableStyleApply,
     // ── MLineStyle Dialog ─────────────────────────────────────────────────
     MlStyleDialogOpen,
     #[allow(dead_code)]
@@ -1158,6 +1168,8 @@ impl OpenCADStudio {
             textstyle_ttf: String::new(),
             // TableStyle dialog
             tablestyle_selected: "Standard".to_string(),
+            ts_hmargin: "1.5".to_string(),
+            ts_vmargin: "1.5".to_string(),
             // MLineStyle dialog
             mlstyle_selected: "Standard".to_string(),
             // DimStyle dialog

src/app/update.rs

@@ -5740,7 +5740,69 @@ impl OpenCADStudio {
                 }
             }
             Message::TableStyleDialogSelect(name) => {
+                use acadrust::objects::ObjectType;
                 self.tablestyle_selected = name;
+                let i = self.active_tab;
+                for obj in self.tabs[i].scene.document.objects.values() {
+                    if let ObjectType::TableStyle(s) = obj {
+                        if s.name == self.tablestyle_selected {
+                            self.ts_hmargin = format!("{:.4}", s.horizontal_margin);
+                            self.ts_vmargin = format!("{:.4}", s.vertical_margin);
+                        }
+                    }
+                }
+                Task::none()
+            }
+
+            Message::TableStyleEdit { field, value } => {
+                match field {
+                    "hmargin" => self.ts_hmargin = value,
+                    "vmargin" => self.ts_vmargin = value,
+                    _ => {}
+                }
+                Task::none()
+            }
+
+            Message::TableStyleApply => {
+                use acadrust::objects::ObjectType;
+                let i = self.active_tab;
+                let name = self.tablestyle_selected.clone();
+                let h: Option<f64> = self.ts_hmargin.trim().parse().ok();
+                let v: Option<f64> = self.ts_vmargin.trim().parse().ok();
+                self.push_undo_snapshot(i, "TABLESTYLE EDIT");
+                for obj in self.tabs[i].scene.document.objects.values_mut() {
+                    if let ObjectType::TableStyle(s) = obj {
+                        if s.name == name {
+                            if let Some(h) = h {
+                                s.horizontal_margin = h;
+                            }
+                            if let Some(v) = v {
+                                s.vertical_margin = v;
+                            }
+                        }
+                    }
+                }
+                self.tabs[i].dirty = true;
+                Task::none()
+            }
+
+            Message::TableStyleToggle(field) => {
+                use acadrust::objects::ObjectType;
+                let i = self.active_tab;
+                let name = self.tablestyle_selected.clone();
+                self.push_undo_snapshot(i, "TABLESTYLE EDIT");
+                for obj in self.tabs[i].scene.document.objects.values_mut() {
+                    if let ObjectType::TableStyle(s) = obj {
+                        if s.name == name {
+                            match field {
+                                "title_sup" => s.title_suppressed = !s.title_suppressed,
+                                "header_sup" => s.header_suppressed = !s.header_suppressed,
+                                _ => {}
+                            }
+                        }
+                    }
+                }
+                self.tabs[i].dirty = true;
                 Task::none()
             }
 

src/app/view.rs

@@ -117,6 +117,8 @@ impl OpenCADStudio {
                 styles,
                 &self.tablestyle_selected,
                 selected_style,
+                &self.ts_hmargin,
+                &self.ts_vmargin,
             );
         }
         if Some(window_id) == self.mlstyle_window {