Merge pull request #1613 from ramox81/codex/sheet-set-manager

Sheet Set Manager, NEWSHEETSET / OPENSHEETSET and sheet set fields, with review fixes.

# Conflicts:
#	Cargo.lock
#	src/app/control/actions.rs
#	src/app/mod.rs
#	src/app/settings.rs
#	src/app/update/dialog.rs
#	src/app/update/file.rs
#	src/app/update/mod.rs
#	src/app/view/mod.rs
#	src/ui/dock.rs
#	src/ui/ribbon/mod.rs
#	src/ui/window/field_dialog.rs
#	src/ui/window/mod.rs

src/ui/ribbon/mod.rs

@@ -60,6 +60,8 @@ pub struct Ribbon {
     pub show_properties: bool,
     /// The Count palette is open (View › Palettes › Count).
     pub show_count_palette: bool,
+    /// Sheet Set Manager palette shown (SSMSTATE).
+    pub show_sheet_set: bool,
     /// File tabs (FILETAB) visibility — drives the File Tabs button highlight.
     pub show_file_tabs: bool,
     /// Layout tabs (LAYOUTTAB) visibility — drives the Layout Tabs button highlight.
@@ -177,6 +179,7 @@ impl Ribbon {
             show_ucs_icon: true,
             show_properties: true,
             show_count_palette: false,
+            show_sheet_set: false,
             show_file_tabs: true,
             show_layout_tabs: true,
             open_dropdown: None,
@@ -341,6 +344,9 @@ impl Ribbon {
     pub fn set_count_palette(&mut self, on: bool) {
         self.show_count_palette = on;
     }
+    pub fn set_sheet_set(&mut self, on: bool) {
+        self.show_sheet_set = on;
+    }
     pub fn set_file_tabs(&mut self, on: bool) {
         self.show_file_tabs = on;
     }
@@ -360,6 +366,7 @@ impl Ribbon {
             show_properties: self.show_properties,
             show_count_palette: self.show_count_palette,
             show_block_palette,
+            show_sheet_set: self.show_sheet_set,
             show_file_tabs: self.show_file_tabs,
             show_layout_tabs: self.show_layout_tabs,
         }

src/ui/ribbon/widgets.rs

@@ -39,6 +39,7 @@ pub(super) struct ToggleState {
     pub show_properties: bool,
     pub show_count_palette: bool,
     pub show_block_palette: bool,
+    pub show_sheet_set: bool,
     pub show_file_tabs: bool,
     pub show_layout_tabs: bool,
 }
@@ -382,6 +383,7 @@ pub(super) fn is_active_tool(
         "PROPERTIES" => state.show_properties,
         "COUNTLIST" => state.show_count_palette,
         "BLOCKPALETTE" => state.show_block_palette,
+        "SHEETSET" => state.show_sheet_set,
         "FILETAB" => state.show_file_tabs,
         "LAYOUTTAB" => state.show_layout_tabs,
         id => active_tool.as_deref() == Some(id),