feat(ui): hide status bar by default

crates/app/src/ui/mod.rs

@@ -244,6 +244,9 @@ fn copy_table_export(ctx: &egui::Context, payload: plotx_core::data_export::Clip
 }
 
 fn render_status(app: &PlotxApp, ui: &mut Ui, dark: bool) {
+    if !app.settings.appearance.show_status_bar {
+        return;
+    }
     egui::Panel::bottom("status")
         .frame(
             card_frame(
@@ -620,6 +623,37 @@ fn flush_frame(dark: bool, inner_margin: egui::Margin) -> egui::Frame {
 #[path = "sidebar_tests.rs"]
 mod sidebar_tests;
 
+#[cfg(test)]
+mod status_bar_tests {
+    use super::*;
+    use egui::{Pos2, RawInput, Rect, vec2};
+
+    fn remaining_height(app: &PlotxApp) -> f32 {
+        let ctx = crate::typography::test_context();
+        let input = RawInput {
+            screen_rect: Some(Rect::from_min_size(Pos2::ZERO, vec2(800.0, 600.0))),
+            ..Default::default()
+        };
+        let mut height = 0.0;
+        let _ = ctx.run_ui(input, |ui| {
+            render_status(app, ui, false);
+            height = ui.available_height();
+        });
+        height
+    }
+
+    #[test]
+    fn status_bar_only_reserves_workspace_when_enabled() {
+        let mut app = PlotxApp::new_with_settings(plotx_core::settings::Settings::default());
+        let hidden_height = remaining_height(&app);
+
+        app.settings.appearance.show_status_bar = true;
+        let shown_height = remaining_height(&app);
+
+        assert!(shown_height < hidden_height);
+    }
+}
+
 #[cfg(test)]
 mod feedback_tests {
     use super::*;

crates/app/src/ui/properties/mod.rs

@@ -644,6 +644,12 @@ pub const PRESENTATIONS: &[PropertyPresentation] = &[
         &[LocalizedText("appearance theme")],
         APPEARANCE_PREFERENCES_HOME,
     ),
+    preference_entry(
+        app_preferences::SHOW_STATUS_BAR,
+        "Show status bar",
+        &[LocalizedText("bottom status")],
+        APPEARANCE_PREFERENCES_HOME,
+    ),
     preference_entry(
         app_preferences::GRAPHICS_POWER,
         "Graphics processor",

crates/app/src/ui/properties/tests.rs

@@ -319,8 +319,8 @@ fn migrated_preferences_keep_their_real_section_density() {
         ),
         (
             SettingsCategory::Appearance.section_id(),
-            3,
-            "theme, GPU, and the accent override row",
+            4,
+            "theme, status bar, GPU, and the accent override row",
         ),
         (
             SettingsCategory::Processing.section_id(),

crates/core/src/properties/app_preferences.rs

@@ -21,6 +21,7 @@ pub const KEEP_EMPTY_SOURCE_CANVAS: PropertyId =
 pub const PROJECT_BACKUP_GENERATIONS: PropertyId =
     PropertyId("settings.general.project_backup_generations");
 pub const THEME: PropertyId = PropertyId("settings.appearance.theme");
+pub const SHOW_STATUS_BAR: PropertyId = PropertyId("settings.appearance.show_status_bar");
 pub const GRAPHICS_POWER: PropertyId = PropertyId("settings.appearance.graphics_power");
 pub const ACCENT_COLOR: PropertyId = PropertyId("settings.appearance.accent.color");
 pub const INCLUDE_VIEW_SNAPSHOTS: PropertyId = PropertyId("settings.export.include_view_snapshots");
@@ -145,6 +146,13 @@ pub(crate) const DEFINITIONS: &[PropertyDefinition] = &[
         "Chrome theme",
         &["appearance theme", "light mode", "dark mode"],
     ),
+    app_definition(
+        SHOW_STATUS_BAR,
+        ValueSchema::Bool,
+        DefaultPolicy::Fixed(PropertyValue::Bool(false)),
+        "Show status bar",
+        &["status bar", "bottom status"],
+    ),
     app_definition(
         GRAPHICS_POWER,
         ValueSchema::Enum {
@@ -316,6 +324,7 @@ fn value_of(app: &PlotxApp, id: PropertyId) -> Result<PropertyValue, PropertyErr
             PropertyValue::Int(i64::from(settings.general.project_backup_generations))
         }
         THEME => PropertyValue::Enum(theme_key(settings.appearance.theme)),
+        SHOW_STATUS_BAR => PropertyValue::Bool(settings.appearance.show_status_bar),
         GRAPHICS_POWER => PropertyValue::Enum(graphics_key(settings.appearance.graphics_power)),
         ACCENT_COLOR => {
             let [r, g, b] = settings.appearance.canvas_accent.unwrap_or([
@@ -390,6 +399,9 @@ fn write_value(
         (THEME, PropertyValue::Enum(value)) => {
             settings.appearance.theme = theme(value).expect("validated theme")
         }
+        (SHOW_STATUS_BAR, PropertyValue::Bool(value)) => {
+            settings.appearance.show_status_bar = value
+        }
         (GRAPHICS_POWER, PropertyValue::Enum(value)) => {
             settings.appearance.graphics_power = graphics(value).expect("validated graphics power")
         }

crates/core/src/properties/app_preferences_tests.rs

@@ -126,13 +126,14 @@ fn backup_bound_rejects_the_value_and_names_the_actual_limit() {
 }
 
 #[test]
-fn all_twelve_app_preferences_reset_through_their_catalog_definitions() {
+fn all_thirteen_app_preferences_reset_through_their_catalog_definitions() {
     let mut settings = Settings::default();
     settings.general.snap_enabled = false;
     settings.general.equal_scale_homonuclear_2d_imports = false;
     settings.general.keep_empty_source_canvas = true;
     settings.general.project_backup_generations = MAX_PROJECT_BACKUP_GENERATIONS;
     settings.appearance.theme = ThemeMode::Dark;
+    settings.appearance.show_status_bar = true;
     settings.appearance.graphics_power = GraphicsPowerPreference::HighPerformance;
     settings.appearance.canvas_accent = Some([12, 34, 56]);
     settings.export.include_view_snapshots = true;
@@ -148,6 +149,7 @@ fn all_twelve_app_preferences_reset_through_their_catalog_definitions() {
         KEEP_EMPTY_SOURCE_CANVAS,
         PROJECT_BACKUP_GENERATIONS,
         THEME,
+        SHOW_STATUS_BAR,
         GRAPHICS_POWER,
         ACCENT_COLOR,
         INCLUDE_VIEW_SNAPSHOTS,
@@ -170,6 +172,10 @@ fn all_twelve_app_preferences_reset_through_their_catalog_definitions() {
     let defaults = Settings::default();
     assert_eq!(app.settings.general, defaults.general);
     assert_eq!(app.settings.appearance.theme, defaults.appearance.theme);
+    assert_eq!(
+        app.settings.appearance.show_status_bar,
+        defaults.appearance.show_status_bar
+    );
     assert_eq!(
         app.settings.appearance.graphics_power,
         defaults.appearance.graphics_power

crates/core/src/settings/model.rs

@@ -87,6 +87,8 @@ pub struct AppearanceSettings {
     #[serde(default)]
     pub theme: ThemeMode,
     #[serde(default)]
+    pub show_status_bar: bool,
+    #[serde(default)]
     pub ui_scale: UiScaleSettings,
     #[serde(default)]
     pub graphics_power: GraphicsPowerPreference,

crates/core/src/settings/tests.rs

@@ -20,6 +20,7 @@ fn missing_fields_take_defaults() {
         settings.appearance.graphics_power,
         GraphicsPowerPreference::LowPower
     );
+    assert!(!settings.appearance.show_status_bar);
     assert_eq!(settings.window.task_cards.craft.width, 520.0);
     assert_eq!(settings.window.task_cards.processing.width, 340.0);
 }
@@ -103,6 +104,7 @@ fn save_and_load_roundtrip() {
     settings.general.project_backup_generations = 3;
     settings.export.include_view_snapshots = true;
     settings.export.trim_to_visible_content = true;
+    settings.appearance.show_status_bar = true;
     settings.window.task_cards.craft = TaskCardSize::new(612.0, 688.0);
 
     io::save_to_path(&path, &settings).unwrap();
@@ -114,6 +116,7 @@ fn save_and_load_roundtrip() {
     assert_eq!(loaded.general.project_backup_generations, 3);
     assert!(loaded.export.include_view_snapshots);
     assert!(loaded.export.trim_to_visible_content);
+    assert!(loaded.appearance.show_status_bar);
     assert_eq!(
         loaded.window.task_cards.craft,
         TaskCardSize::new(612.0, 688.0)

docs/src/content/docs/reference/ui-overview.md

@@ -36,7 +36,8 @@ introduces the same regions in walkthrough form.
   shortcut surface: everything on it is also in the menus or command palette.
   See [the Ribbon](/reference/ribbon/) for every tab's groups.
 - **Status bar** — the bottom strip, showing hints, progress, and selection
-  details.
+  details. It is hidden by default to leave more room for the workspace; enable
+  **Show status bar** under **Preferences → Appearance** when you want it.
 
 Both Side Bars can be shown or hidden at any time: click the pair of layout
 buttons at the right end of the Ribbon's task row, press

docs/src/content/docs/zh-cn/reference/ui-overview.md

@@ -30,7 +30,9 @@ PlotX 的界面为英文；手册中加粗的英文词即界面上的原文标
   **Analyze**、**Figure**、**Arrange**、**View**）。在 macOS 上，其任务行
   还承载原生窗口按钮和项目名。它是快捷入口：其上的一切也都能在菜单或命令面板中找到。
   各页签的分组详见 [Ribbon](/zh-cn/reference/ribbon/)。
-- **状态栏**——底部条带，显示提示、进度和选择详情。
+- **状态栏**——底部条带，显示提示、进度和选择详情。默认隐藏，以便为工作区
+  留出更多空间；需要时可在 **Preferences → Appearance** 中开启
+  **Show status bar**。
 
 两个侧栏随时可以显示或隐藏：点击 Ribbon 任务行右端的一对布局按钮，按
 <kbd>Ctrl</kbd>+<kbd>B</kbd>（左）或 <kbd>Ctrl</kbd>+<kbd>Shift</kbd>+<kbd>B</kbd>