feat(textstyle): full Text Style editor — big/TT font, fixed height, flags, annotative

Expands the Text Style manager beyond font/width/oblique: big-font and
TrueType font fields, fixed text height, Backward / Upside-down flags, and
an Annotative toggle (applied live). Bumps acadrust for the annotative
field.

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

src/app/mod.rs

@@ -305,6 +305,12 @@ pub(super) struct OpenCADStudio {
     textstyle_width: String,
     /// Edit buffer for oblique angle (degrees).
     textstyle_oblique: String,
+    /// Edit buffer for fixed text height (0 = variable).
+    textstyle_height: String,
+    /// Edit buffer for big-font file name.
+    textstyle_bigfont: String,
+    /// Edit buffer for TrueType font name.
+    textstyle_ttf: String,
 
     // ── Color Scheme ──────────────────────────────────────────────────────
     active_theme: Theme,
@@ -880,6 +886,9 @@ pub enum Message {
     TextStyleApply,
     /// Select a font from the built-in font list.
     TextStyleFontPick(String),
+    /// Flip a boolean flag on the selected text style (backward / upside_down /
+    /// vertical / annotative), applied immediately.
+    TextStyleToggle(&'static str),
     // ── TableStyle Dialog ─────────────────────────────────────────────────
     TableStyleDialogOpen,
     #[allow(dead_code)]
@@ -1053,6 +1062,9 @@ impl OpenCADStudio {
             textstyle_font: String::new(),
             textstyle_width: "1.0".to_string(),
             textstyle_oblique: "0.0".to_string(),
+            textstyle_height: "0.0".to_string(),
+            textstyle_bigfont: String::new(),
+            textstyle_ttf: String::new(),
             // TableStyle dialog
             tablestyle_selected: "Standard".to_string(),
             // MLineStyle dialog

src/app/update.rs

@@ -5634,10 +5634,31 @@ impl OpenCADStudio {
                     "font" => self.textstyle_font = value,
                     "width" => self.textstyle_width = value,
                     "oblique" => self.textstyle_oblique = value,
+                    "height" => self.textstyle_height = value,
+                    "bigfont" => self.textstyle_bigfont = value,
+                    "ttf" => self.textstyle_ttf = value,
                     _ => {}
                 }
                 Task::none()
             }
+            Message::TextStyleToggle(field) => {
+                let i = self.active_tab;
+                let name = self.textstyle_selected.clone();
+                if self.tabs[i].scene.document.text_styles.get(&name).is_some() {
+                    self.push_undo_snapshot(i, "STYLE EDIT");
+                    if let Some(s) = self.tabs[i].scene.document.text_styles.get_mut(&name) {
+                        match field {
+                            "backward" => s.flags.backward = !s.flags.backward,
+                            "upside_down" => s.flags.upside_down = !s.flags.upside_down,
+                            "annotative" => s.annotative = !s.annotative,
+                            _ => {}
+                        }
+                    }
+                    self.tabs[i].scene.bump_geometry();
+                    self.tabs[i].dirty = true;
+                }
+                Task::none()
+            }
             Message::TextStyleApply => {
                 let i = self.active_tab;
                 let name = self.textstyle_selected.clone();
@@ -5646,15 +5667,24 @@ impl OpenCADStudio {
                     let font = self.textstyle_font.clone();
                     let width_str = self.textstyle_width.clone();
                     let oblique_str = self.textstyle_oblique.clone();
+                    let height_str = self.textstyle_height.clone();
+                    let bigfont = self.textstyle_bigfont.clone();
+                    let ttf = self.textstyle_ttf.clone();
                     if let Some(s) = self.tabs[i].scene.document.text_styles.get_mut(&name) {
                         s.font_file = font;
+                        s.big_font_file = bigfont;
+                        s.true_type_font = ttf;
                         if let Ok(w) = width_str.trim().parse::<f64>() {
                             s.width_factor = w;
                         }
                         if let Ok(a) = oblique_str.trim().parse::<f64>() {
                             s.oblique_angle = a.to_radians();
                         }
+                        if let Ok(h) = height_str.trim().parse::<f64>() {
+                            s.height = h.max(0.0);
+                        }
                     }
+                    self.tabs[i].scene.bump_geometry();
                     self.tabs[i].dirty = true;
                 }
                 Task::none()
@@ -6635,6 +6665,9 @@ impl OpenCADStudio {
             self.textstyle_font = s.font_file.clone();
             self.textstyle_width = format!("{:.4}", s.width_factor);
             self.textstyle_oblique = format!("{:.2}", s.oblique_angle.to_degrees());
+            self.textstyle_height = format!("{:.4}", s.height);
+            self.textstyle_bigfont = s.big_font_file.clone();
+            self.textstyle_ttf = s.true_type_font.clone();
         }
     }
 }

src/app/view.rs

@@ -65,13 +65,26 @@ impl OpenCADStudio {
                 .iter()
                 .map(|s| s.name.clone())
                 .collect();
-            return crate::ui::textstyle::view_window(
+            let (backward, upside_down, annotative) = tab
+                .scene
+                .document
+                .text_styles
+                .get(&self.textstyle_selected)
+                .map(|s| (s.flags.backward, s.flags.upside_down, s.annotative))
+                .unwrap_or((false, false, false));
+            return crate::ui::textstyle::view_window(crate::ui::textstyle::TextStyleView {
                 styles,
-                &self.textstyle_selected,
-                &self.textstyle_font,
-                &self.textstyle_width,
-                &self.textstyle_oblique,
-            );
+                selected: &self.textstyle_selected,
+                font_buf: &self.textstyle_font,
+                width_buf: &self.textstyle_width,
+                oblique_buf: &self.textstyle_oblique,
+                height_buf: &self.textstyle_height,
+                bigfont_buf: &self.textstyle_bigfont,
+                ttf_buf: &self.textstyle_ttf,
+                backward,
+                upside_down,
+                annotative,
+            });
         }
         if Some(window_id) == self.tablestyle_window {
             use acadrust::objects::ObjectType;