Merge pull request #883 from ramox81/codex/complete-mtext

Complete multiline text creation, editing, properties, and layout

Cargo.lock

@@ -72,7 +72,7 @@ checksum = "366ffbaa4442f4684d91e2cd7c5ea7c4ed8add41959a31447066e279e432b618"
 [[package]]
 name = "acadrust"
 version = "0.4.1"
-source = "git+https://git@github.com/HakanSeven12/cadcodec.git?rev=9f3cf8e#9f3cf8e26d5a02fb4ad8ea145ca8e04dd6d6f2bc"
+source = "git+https://git@github.com/HakanSeven12/cadcodec.git?rev=96dee63f476cd449b95dad19ac89faf29cc19043#96dee63f476cd449b95dad19ac89faf29cc19043"
 dependencies = [
  "ahash 0.8.12",
  "anyhow",

Cargo.toml

@@ -27,7 +27,7 @@ glam = { version = "0.33", features = ["bytemuck"] }
 rfd = "0.17"
 clap = { version = "4", features = ["derive"] }
 env_logger = "0.11"
-acadrust = { git = "https://github.com/HakanSeven12/cadcodec.git", rev = "9f3cf8e", features = ["serde"] }
+acadrust = { git = "https://github.com/HakanSeven12/cadcodec.git", rev = "96dee63f476cd449b95dad19ac89faf29cc19043", features = ["serde"] }
 cadkernel = { git = "https://github.com/HakanSeven12/cadkernel.git", rev = "b2b1d4b", features = ["acis", "offset"] }
 dwg-thumbnailer = { path = "crates/dwg-thumbnailer" }
 flate2 = "1"
@@ -61,7 +61,7 @@ iced_core = { git = "https://github.com/iced-rs/iced.git", rev = "23604ff22ab0aa
 iced_widget = { git = "https://github.com/iced-rs/iced.git", rev = "23604ff22ab0aad9e00b9327cb7b8546ed84db39" }
 
 [patch."https://github.com/HakanSeven12/cadcodec.git"]
-acadrust = { git = "https://git@github.com/HakanSeven12/cadcodec.git", rev = "9f3cf8e" }
+acadrust = { git = "https://git@github.com/HakanSeven12/cadcodec.git", rev = "96dee63f476cd449b95dad19ac89faf29cc19043" }
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
 ocs_plugin_api = { path = "crates/ocs_plugin_api", features = ["host"] }

src/app/command_driver.rs

@@ -3716,10 +3716,11 @@ impl OpenCADStudio {
                 handle,
                 initial,
                 height,
+                template,
             } => {
                 self.tabs[i].active_cmd = None;
                 self.tabs[i].snap_result = None;
-                self.open_mtext_editor(pos, handle, &initial, height);
+                self.open_mtext_editor(pos, handle, &initial, height, template.map(|m| *m));
             }
             CmdResult::SuspendForMTextInput {
                 pos,
@@ -3732,7 +3733,7 @@ impl OpenCADStudio {
                 self.restore_pre_cmd_tangent();
                 self.command_mtext_input = true;
                 self.pending_command_editor_text = None;
-                self.open_mtext_editor(pos, None, &initial, height);
+                self.open_mtext_editor(pos, None, &initial, height, None);
             }
             CmdResult::OpenTextEditor {
                 pos,

src/app/commands/draw.rs

@@ -1312,7 +1312,13 @@ impl OpenCADStudio {
                     &self.tabs[i].scene.document,
                 )
                 .height;
-                let new_cmd = MTextCommand::with_height(height);
+                let style = self.tabs[i]
+                    .scene
+                    .document
+                    .header
+                    .current_text_style_name
+                    .clone();
+                let new_cmd = MTextCommand::with_defaults(height, style);
                 self.command_line.push_info(&new_cmd.prompt());
                 self.tabs[i].active_cmd = Some(Box::new(new_cmd));
             }

src/app/mod.rs

@@ -2659,6 +2659,31 @@ pub enum Message {
     MTextWidth(String),
     /// Toolbar character-spacing field changed.
     MTextCharSpace(String),
+    /// Undo / redo editor text and inline-format operations.
+    MTextUndo,
+    MTextRedo,
+    /// Convert the selected numerator/separator/denominator to a stacked run.
+    MTextStack,
+    /// Remove inline character formatting from the selection (or all text).
+    MTextClearFormatting,
+    /// Insert a predefined symbol or field token at the caret.
+    MTextInsert(String),
+    /// Per-object annotation flag edited from the text toolbar.
+    MTextAnnotative(bool),
+    /// Column layout controls.
+    MTextColumnMode(String),
+    MTextColumnCount(String),
+    MTextColumnWidth(String),
+    MTextColumnGutter(String),
+    MTextColumnHeight(String),
+    MTextColumnFlowReversed(bool),
+    /// Paragraph indent/spacing controls.
+    MTextParagraphNumber(mtext_editor::ParaNumber, String),
+    MTextFindText(String),
+    MTextReplaceText(String),
+    MTextFindNext,
+    MTextReplaceNext,
+    MTextReplaceAll,
     /// Toolbar colour picker (same widget as Properties) — applies to the
     /// selection, or the whole text when nothing is selected.
     MTextColorChanged(AcadColor),

src/app/mtext_editor.rs

@@ -8,7 +8,7 @@
 use acadrust::entities::mtext::AttachmentPoint;
 use acadrust::entities::mtext_format::{
     parse_mtext, MTextColor, MTextDocument, MTextFont, MTextParagraph, MTextParagraphAlignment,
-    MTextSpan, ParagraphProperties, SpanProperties, StackingData, StackingType,
+    MTextScalar, MTextSpan, ParagraphProperties, SpanProperties, StackingData, StackingType,
 };
 use acadrust::types::Vector3;
 use acadrust::{EntityType, Handle, MText};
@@ -38,6 +38,15 @@ pub enum ParaAlign {
     Justify,
 }
 
+#[derive(Clone, Copy, Debug, PartialEq, Eq)]
+pub enum ParaNumber {
+    FirstIndent,
+    LeftIndent,
+    RightIndent,
+    SpaceBefore,
+    SpaceAfter,
+}
+
 /// `pick_list`-friendly wrapper for the 9 attachment points.
 #[derive(Clone, Copy, PartialEq, Eq)]
 pub struct JustifyChoice(pub AttachmentPoint);
@@ -107,6 +116,23 @@ pub struct MTextEditorState {
     /// it is NOT derived from the typed content, so adding characters wraps
     /// to the next line instead of stretching the box into one long line.
     pub rect_width: f64,
+    pub rect_height: String,
+    pub annotative: bool,
+    pub column_type: i16,
+    pub column_count: String,
+    pub column_auto_height: bool,
+    pub column_flow_reversed: bool,
+    pub column_width: String,
+    pub column_gutter: String,
+    pub paragraph_first_indent: String,
+    pub paragraph_left_indent: String,
+    pub paragraph_right_indent: String,
+    pub paragraph_space_before: String,
+    pub paragraph_space_after: String,
+    pub find_text: String,
+    pub replace_text: String,
+    undo: Vec<String>,
+    redo: Vec<String>,
     /// `Some` when editing an existing entity; `None` for a fresh MText.
     pub editing: Option<Handle>,
     /// When true the panel shows the rendered preview; when false the raw
@@ -167,6 +193,23 @@ impl MTextEditorState {
             // Default box ~20 characters wide; overwritten with the entity's
             // own width when editing an existing MText.
             rect_width: (height * 20.0).max(1.0),
+            rect_height: "0".to_string(),
+            annotative: false,
+            column_type: 0,
+            column_count: "2".to_string(),
+            column_auto_height: false,
+            column_flow_reversed: false,
+            column_width: (height * 10.0).to_string(),
+            column_gutter: (height * 5.0).to_string(),
+            paragraph_first_indent: "0".to_string(),
+            paragraph_left_indent: "0".to_string(),
+            paragraph_right_indent: "0".to_string(),
+            paragraph_space_before: "0".to_string(),
+            paragraph_space_after: "0".to_string(),
+            find_text: String::new(),
+            replace_text: String::new(),
+            undo: Vec::new(),
+            redo: Vec::new(),
             editing,
             screen_anchor: iced::Point::new(60.0, 90.0),
             original: None,
@@ -274,8 +317,54 @@ impl MTextEditorState {
         mt.attachment_point = self.attachment;
         mt.line_spacing_factor = self.line_spacing as f64;
         mt.style = self.style.clone();
+        mt.is_annotative = self.annotative;
+        let rectangle_height = self.rect_height.trim().parse::<f64>().unwrap_or(0.0);
+        mt.rectangle_height = (rectangle_height > 0.0).then_some(rectangle_height);
+        mt.column_data.column_type = self.column_type;
+        if self.column_type == 0 {
+            mt.column_data.column_count = 0;
+            mt.column_data.heights.clear();
+        } else {
+            mt.column_data.column_count = crate::entities::text_support::clamp_mtext_column_count(
+                self.column_count
+                    .trim()
+                    .parse::<i32>()
+                    .ok()
+                    .filter(|count| *count > 0)
+                    .unwrap_or(1),
+            );
+            mt.column_data.auto_height = self.column_auto_height;
+            mt.column_data.flow_reversed = self.column_flow_reversed;
+            if let Ok(width) = self.column_width.trim().parse::<f64>() {
+                if width > 0.0 {
+                    mt.column_data.width = width;
+                }
+            }
+            if let Ok(gutter) = self.column_gutter.trim().parse::<f64>() {
+                if gutter >= 0.0 {
+                    mt.column_data.gutter = gutter;
+                }
+            }
+            if !self.column_auto_height && rectangle_height > 0.0 {
+                mt.column_data.heights = vec![
+                    rectangle_height;
+                    mt.column_data.column_count as usize
+                ];
+            }
+        }
         mt
     }
+
+    fn record_undo(&mut self) {
+        let value = self.content.text();
+        if self.undo.last().is_none_or(|last| last != &value) {
+            self.undo.push(value);
+            if self.undo.len() > 100 {
+                self.undo.remove(0);
+            }
+        }
+        self.redo.clear();
+    }
 }
 
 /// Parse a numeric field, returning `Some(v)` only when it differs from the
@@ -595,6 +684,27 @@ fn vertical_caret_target(
     best.1
 }
 
+fn seed_mtext_state(state: &mut MTextEditorState, m: &MText) {
+    state.attachment = m.attachment_point;
+    state.line_spacing = m.line_spacing_factor as f32;
+    state.rect_width = m.rectangle_width.max(0.0);
+    state.rect_height = m.rectangle_height.unwrap_or(0.0).max(0.0).to_string();
+    state.annotative = m.is_annotative;
+    state.column_type = m.column_data.column_type;
+    state.column_count = crate::entities::text_support::clamp_mtext_column_count(
+        m.column_data.column_count,
+    )
+    .to_string();
+    state.column_auto_height = m.column_data.auto_height;
+    state.column_flow_reversed = m.column_data.flow_reversed;
+    state.column_width = m.column_data.width.max(0.0).to_string();
+    state.column_gutter = m.column_data.gutter.max(0.0).to_string();
+    if !m.style.trim().is_empty() {
+        state.style = m.style.clone();
+    }
+    state.original = Some(m.clone());
+}
+
 impl super::OpenCADStudio {
     /// Open the in-place editor for a new (`handle = None`) or existing MText.
     /// Open the rich MText editor for a new or existing MText / MultiLeader.
@@ -605,6 +715,7 @@ impl super::OpenCADStudio {
         handle: Option<Handle>,
         initial: &str,
         height: f64,
+        template: Option<MText>,
     ) {
         if handle.is_some_and(|h| self.tabs[self.active_tab].scene.is_layer_locked(h)) {
             return;
@@ -614,20 +725,11 @@ impl super::OpenCADStudio {
             state.screen_anchor = p;
         }
         // Seed attachment / line-spacing / box width from the entity being edited.
+        let has_template = template.is_some();
         if let Some(h) = handle {
             match self.tabs[self.active_tab].scene.document.get_entity(h) {
                 Some(EntityType::MText(m)) => {
-                    state.attachment = m.attachment_point;
-                    state.line_spacing = m.line_spacing_factor as f32;
-                    if !m.style.trim().is_empty() {
-                        state.style = m.style.clone();
-                    }
-                    if m.rectangle_width > 0.0 {
-                        state.rect_width = m.rectangle_width;
-                    }
-                    // Keep the whole entity so `build_mtext` preserves the fields
-                    // the toolbar can't edit (columns, rotation, background…).
-                    state.original = Some(m.clone());
+                    seed_mtext_state(&mut state, m);
                 }
                 Some(EntityType::MultiLeader(ml)) => {
                     state.line_spacing = ml.context.line_spacing_factor as f32;
@@ -637,6 +739,8 @@ impl super::OpenCADStudio {
                 }
                 _ => {}
             }
+        } else if let Some(m) = template {
+            seed_mtext_state(&mut state, &m);
         } else {
             // New MText inherits the document's current text style (STYLE),
             // not the "Standard" default. See #92.
@@ -659,7 +763,7 @@ impl super::OpenCADStudio {
         // The preview uses a fixed on-screen text size. Therefore the initial
         // wrap width is the drawing-unit span that exactly reaches the right
         // edge of the editor, placing both ruler and slider at their maximum.
-        if handle.is_none() {
+        if handle.is_none() && !has_template {
             let initial_width = self.mtext_editor.as_ref().map(|ed| {
                 super::view::overlay::MTEXT_EDITOR_WRITING_WIDTH / ed.preview_scale()
             });
@@ -746,6 +850,322 @@ impl super::OpenCADStudio {
     /// Splice text around the preview selection (visible-char range) in the
     /// raw value. `case` optionally transforms the selected slice. Returns
     /// true when a preview selection was present and applied.
+    pub(super) fn mtext_undo(&mut self) {
+        if let Some(ed) = self.mtext_editor.as_mut() {
+            if let Some(previous) = ed.undo.pop() {
+                ed.redo.push(ed.content.text());
+                ed.content = text_editor::Content::with_text(&previous);
+                ed.caret = previous.chars().count();
+                ed.sel = Some((ed.caret, ed.caret));
+                ed.sel_anchor = ed.caret;
+            }
+        }
+        self.rebuild_mtext_preview();
+    }
+
+    pub(super) fn mtext_redo(&mut self) {
+        if let Some(ed) = self.mtext_editor.as_mut() {
+            if let Some(next) = ed.redo.pop() {
+                ed.undo.push(ed.content.text());
+                ed.content = text_editor::Content::with_text(&next);
+                ed.caret = next.chars().count();
+                ed.sel = Some((ed.caret, ed.caret));
+                ed.sel_anchor = ed.caret;
+            }
+        }
+        self.rebuild_mtext_preview();
+    }
+
+    pub(super) fn mtext_apply_span_number(&mut self, field: &'static str, value: String) {
+        let Some(number) = value.trim().replace(',', ".").parse::<f64>().ok() else {
+            return;
+        };
+        let valid = match field {
+            "height" => number > 0.0,
+            "oblique" => (-85.0..=85.0).contains(&number),
+            "width" => number > 0.0,
+            "tracking" => number.is_finite(),
+            _ => false,
+        };
+        if !valid {
+            return;
+        }
+        let has_selection = self
+            .mtext_editor
+            .as_ref()
+            .and_then(|editor| editor.sel)
+            .is_some_and(|(start, end)| start < end);
+        if let Some(ed) = self.mtext_editor.as_mut() {
+            if has_selection {
+                let (start, end) = ed.sel.unwrap();
+                ed.record_undo();
+                let para0 = doc_para0(&ed.doc);
+                let mut cells = doc_to_cells(&ed.doc);
+                let end = end.min(cells.len());
+                for cell in &mut cells[start.min(end)..end] {
+                    if let Cell::Char(_, props) | Cell::Stack { props, .. } = cell {
+                        match field {
+                            "height" => props.height = Some(MTextScalar::Absolute(number)),
+                            "oblique" => props.oblique_angle = (number != 0.0).then_some(number),
+                            "width" => props.width_factor = (number != 1.0).then_some(number),
+                            "tracking" => props.tracking = (number != 0.0).then_some(number),
+                            _ => {}
+                        }
+                    }
+                }
+                ed.content = text_editor::Content::with_text(
+                    &cells_to_doc(&para0, &cells).to_mtext_string(),
+                );
+                ed.sel = Some((start, end));
+                ed.caret = end;
+            } else {
+                match field {
+                    "height" => ed.height = value,
+                    "oblique" => ed.oblique = value,
+                    "width" => ed.width = value,
+                    "tracking" => ed.char_space = value,
+                    _ => {}
+                }
+            }
+        }
+        self.rebuild_mtext_preview();
+    }
+
+    pub(super) fn mtext_apply_paragraph_number(&mut self, field: ParaNumber, value: String) {
+        let Some(number) = value.trim().replace(',', ".").parse::<f64>().ok() else {
+            return;
+        };
+        if !number.is_finite() {
+            return;
+        }
+        if let Some(ed) = self.mtext_editor.as_mut() {
+            ed.record_undo();
+            match field {
+                ParaNumber::FirstIndent => ed.paragraph_first_indent = value,
+                ParaNumber::LeftIndent => ed.paragraph_left_indent = value,
+                ParaNumber::RightIndent => ed.paragraph_right_indent = value,
+                ParaNumber::SpaceBefore => ed.paragraph_space_before = value,
+                ParaNumber::SpaceAfter => ed.paragraph_space_after = value,
+            }
+            let para0 = doc_para0(&ed.doc);
+            let cells = doc_to_cells(&ed.doc);
+            let (start, end) = ed
+                .sel
+                .filter(|(start, end)| start < end)
+                .unwrap_or((ed.caret, ed.caret));
+            let paragraph_of = |index: usize| {
+                cells
+                    .iter()
+                    .take(index.min(cells.len()))
+                    .filter(|cell| matches!(cell, Cell::Break(..)))
+                    .count()
+            };
+            let first = paragraph_of(start);
+            let last = paragraph_of(end.saturating_sub((end > start) as usize));
+            let mut doc = cells_to_doc(&para0, &cells);
+            for paragraph in doc
+                .paragraphs
+                .iter_mut()
+                .skip(first)
+                .take(last.saturating_sub(first) + 1)
+            {
+                let optional = (number != 0.0).then_some(number);
+                match field {
+                    ParaNumber::FirstIndent => paragraph.properties.first_line_indent = optional,
+                    ParaNumber::LeftIndent => paragraph.properties.left_margin = optional,
+                    ParaNumber::RightIndent => paragraph.properties.right_margin = optional,
+                    ParaNumber::SpaceBefore => paragraph.properties.spacing_before = optional,
+                    ParaNumber::SpaceAfter => paragraph.properties.spacing_after = optional,
+                }
+            }
+            ed.content = text_editor::Content::with_text(&doc.to_mtext_string());
+        }
+        self.rebuild_mtext_preview();
+    }
+
+    pub(super) fn mtext_stack_selection(&mut self) {
+        if let Some(ed) = self.mtext_editor.as_mut() {
+            let Some((start, end)) = ed.sel.filter(|(start, end)| start < end) else {
+                return;
+            };
+            let para0 = doc_para0(&ed.doc);
+            let mut cells = doc_to_cells(&ed.doc);
+            let end = end.min(cells.len());
+            let plain = cells_to_doc(&ParagraphProperties::default(), &cells[start..end])
+                .to_plain_text();
+            let Some((split, separator)) = plain
+                .char_indices()
+                .find(|(_, ch)| matches!(ch, '/' | '#' | '^'))
+            else {
+                return;
+            };
+            let separator_len = separator.len_utf8();
+            let data = StackingData {
+                numerator: plain[..split].to_string(),
+                denominator: plain[split + separator_len..].to_string(),
+                stacking_type: StackingType::from_char(separator),
+            };
+            if data.numerator.is_empty() || data.denominator.is_empty() {
+                return;
+            }
+            let props = cells[start..end]
+                .iter()
+                .find_map(|cell| match cell {
+                    Cell::Char(_, props) | Cell::Stack { props, .. } => Some(props.clone()),
+                    Cell::Break(..) => None,
+                })
+                .unwrap_or_default();
+            ed.record_undo();
+            let replacement = flatten_stack(&data)
+                .chars()
+                .enumerate()
+                .map(|(index, _)| Cell::Stack {
+                    data: data.clone(),
+                    props: props.clone(),
+                    head: index == 0,
+                })
+                .collect::<Vec<_>>();
+            let replacement_len = replacement.len();
+            cells.splice(start..end, replacement);
+            let new_end = start + replacement_len;
+            ed.content = text_editor::Content::with_text(
+                &cells_to_doc(&para0, &cells).to_mtext_string(),
+            );
+            ed.sel = Some((start, new_end));
+            ed.caret = new_end;
+            ed.sel_anchor = start;
+        }
+        self.rebuild_mtext_preview();
+    }
+
+    pub(super) fn mtext_clear_formatting(&mut self) {
+        if let Some(ed) = self.mtext_editor.as_mut() {
+            let para0 = doc_para0(&ed.doc);
+            let mut cells = doc_to_cells(&ed.doc);
+            let (start, end) = ed
+                .sel
+                .filter(|(start, end)| start < end)
+                .unwrap_or((0, cells.len()));
+            let end = end.min(cells.len());
+            ed.record_undo();
+            for cell in &mut cells[start.min(end)..end] {
+                if let Cell::Char(_, props) | Cell::Stack { props, .. } = cell {
+                    *props = SpanProperties::default();
+                }
+            }
+            ed.content = text_editor::Content::with_text(
+                &cells_to_doc(&para0, &cells).to_mtext_string(),
+            );
+            ed.sel = Some((start, end));
+            ed.caret = end;
+        }
+        self.rebuild_mtext_preview();
+    }
+
+    pub(super) fn mtext_find_next(&mut self) {
+        if let Some(ed) = self.mtext_editor.as_mut() {
+            let needle: Vec<char> = ed.find_text.chars().collect();
+            if needle.is_empty() {
+                return;
+            }
+            let cells = doc_to_cells(&ed.doc);
+            let chars: Vec<Option<char>> = cells
+                .iter()
+                .map(|cell| match cell {
+                    Cell::Char(ch, _) => Some(*ch),
+                    Cell::Break(..) => Some('\n'),
+                    Cell::Stack { .. } => None,
+                })
+                .collect();
+            if needle.len() > chars.len() {
+                return;
+            }
+            let start = ed.caret.min(chars.len());
+            let last_start = chars.len() - needle.len();
+            let found = (start..=last_start)
+                .chain(0..start.min(last_start + 1))
+                .find(|index| {
+                    chars[*index..*index + needle.len()]
+                        .iter()
+                        .zip(&needle)
+                        .all(|(actual, expected)| actual == &Some(*expected))
+                });
+            if let Some(found) = found {
+                ed.sel_anchor = found;
+                ed.sel = Some((found, found + needle.len()));
+                ed.caret = found + needle.len();
+                ed.caret_blink_on = true;
+            }
+        }
+    }
+
+    pub(super) fn mtext_replace_next(&mut self) {
+        let replacement = self
+            .mtext_editor
+            .as_ref()
+            .map(|editor| editor.replace_text.clone())
+            .unwrap_or_default();
+        let matches = self.mtext_editor.as_ref().is_some_and(|editor| {
+            let Some((start, end)) = editor.sel.filter(|(start, end)| start < end) else {
+                return false;
+            };
+            let cells = doc_to_cells(&editor.doc);
+            cells_to_doc(
+                &ParagraphProperties::default(),
+                &cells[start.min(cells.len())..end.min(cells.len())],
+            )
+            .to_plain_text()
+                == editor.find_text
+        });
+        if matches {
+            self.mtext_type(&replacement);
+        }
+        self.mtext_find_next();
+    }
+
+    pub(super) fn mtext_replace_all(&mut self) {
+        if let Some(ed) = self.mtext_editor.as_mut() {
+            let needle: Vec<char> = ed.find_text.chars().collect();
+            if needle.is_empty() {
+                return;
+            }
+            let para0 = doc_para0(&ed.doc);
+            let mut cells = doc_to_cells(&ed.doc);
+            let replacement = ed.replace_text.clone();
+            let mut matches = Vec::new();
+            let mut index = 0usize;
+            while index + needle.len() <= cells.len() {
+                let found = cells[index..index + needle.len()]
+                    .iter()
+                    .zip(&needle)
+                    .all(|(cell, expected)| matches!(cell, Cell::Char(actual, _) if actual == expected));
+                if found {
+                    matches.push(index);
+                    index += needle.len();
+                } else {
+                    index += 1;
+                }
+            }
+            if matches.is_empty() {
+                return;
+            }
+            ed.record_undo();
+            for start in matches.into_iter().rev() {
+                let props = insert_props(&cells, start);
+                let paragraph = para_props_at(&para0, &cells, start);
+                let replacement_cells = str_to_cells(&replacement, &props, &paragraph);
+                cells.splice(start..start + needle.len(), replacement_cells);
+            }
+            ed.content = text_editor::Content::with_text(
+                &cells_to_doc(&para0, &cells).to_mtext_string(),
+            );
+            ed.caret = cells.len();
+            ed.sel = Some((ed.caret, ed.caret));
+            ed.sel_anchor = ed.caret;
+        }
+        self.rebuild_mtext_preview();
+    }
+
     /// Toggle a character format over the preview selection, on the structured
     /// span properties. The stroke-font renderer has no true bold, so Bold
     /// switches the run to the heavier "Gothic" face; Italic applies a 15°
@@ -798,6 +1218,7 @@ impl super::OpenCADStudio {
             if a >= b {
                 return;
             }
+            ed.record_undo();
             match kind {
                 MTextFmt::Underline => {
                     let on = !all_have(&cells[a..b], |p| p.underline());
@@ -882,6 +1303,7 @@ impl super::OpenCADStudio {
     /// Set the alignment of every paragraph the selection (or caret) touches.
     pub(super) fn mtext_apply_align(&mut self, align: ParaAlign) {
         if let Some(ed) = self.mtext_editor.as_mut() {
+            ed.record_undo();
             let para0 = doc_para0(&ed.doc);
             let cells = doc_to_cells(&ed.doc);
             let (a, b) = ed
@@ -933,6 +1355,7 @@ impl super::OpenCADStudio {
             s
         };
         if let Some(ed) = self.mtext_editor.as_mut() {
+            ed.record_undo();
             // Edit the structured document as a flat cell list, then serialize
             // it back into the raw content the preview/commit still read.
             let para0 = doc_para0(&ed.doc);
@@ -962,6 +1385,7 @@ impl super::OpenCADStudio {
     /// Delete the selection, or the visible character before the caret.
     pub(super) fn mtext_backspace(&mut self) {
         if let Some(ed) = self.mtext_editor.as_mut() {
+            ed.record_undo();
             let para0 = doc_para0(&ed.doc);
             let mut cells = doc_to_cells(&ed.doc);
             let count = cells.len();
@@ -985,6 +1409,7 @@ impl super::OpenCADStudio {
     /// Delete the selection, or the visible character at the caret.
     pub(super) fn mtext_delete(&mut self) {
         if let Some(ed) = self.mtext_editor.as_mut() {
+            ed.record_undo();
             let para0 = doc_para0(&ed.doc);
             let mut cells = doc_to_cells(&ed.doc);
             let count = cells.len();
@@ -1104,6 +1529,7 @@ impl super::OpenCADStudio {
                 let mut cells = doc_to_cells(&ed.doc);
                 let b = b.min(cells.len());
                 if a < b {
+                    ed.record_undo();
                     for c in &mut cells[a..b] {
                         if let Cell::Char(_, p) | Cell::Stack { props: p, .. } = c {
                             let (bold, italic) = p
@@ -1155,6 +1581,7 @@ impl super::OpenCADStudio {
                 let mut cells = doc_to_cells(&ed.doc);
                 let b = b.min(cells.len());
                 if a < b {
+                    ed.record_undo();
                     for c in &mut cells[a..b] {
                         if let Cell::Char(_, p) | Cell::Stack { props: p, .. } = c {
                             p.color = mcolor.clone();
@@ -1217,7 +1644,8 @@ impl super::OpenCADStudio {
         }
         let body_empty = ed.content.text().trim().is_empty();
         let mut mt = ed.build_mtext();
-        let annotative = ed.editing.is_none()
+        let annotative = mt.is_annotative
+            || ed.editing.is_none()
             && crate::scene::annotative::text_style_is_annotative(
                 &self.tabs[i].scene.document,
                 &mt.style,
@@ -1240,9 +1668,12 @@ impl super::OpenCADStudio {
                 Some(EntityType::MText(t)) => {
                     t.value = mt.value;
                     t.height = mt.height;
+                    t.style = mt.style;
                     t.attachment_point = mt.attachment_point;
                     t.line_spacing_factor = mt.line_spacing_factor;
                     t.rectangle_width = mt.rectangle_width;
+                    t.rectangle_height = mt.rectangle_height;
+                    t.column_data = mt.column_data;
                 }
                 Some(EntityType::MultiLeader(ml)) => {
                     ml.context.text_string = mt.value;
@@ -1255,9 +1686,25 @@ impl super::OpenCADStudio {
                 _ => {}
             }
             // Keep the displayed annotation context in sync.
+            if matches!(self.tabs[i].scene.document.get_entity(h), Some(EntityType::MText(_))) {
+                crate::scene::annotative::set_entity_annotative(
+                    &mut self.tabs[i].scene.document,
+                    h,
+                    annotative,
+                );
+                if annotative {
+                    if let Some(scale) = self.tabs[i].scene.current_annotation_scale_handle() {
+                        crate::scene::annotative::create_annotation_context(
+                            &mut self.tabs[i].scene.document,
+                            h,
+                            scale,
+                        );
+                    }
+                }
+            }
             if matches!(
                 self.tabs[i].scene.document.get_entity(h),
-                Some(EntityType::MultiLeader(_))
+                Some(EntityType::MText(_) | EntityType::MultiLeader(_))
             ) {
                 self.tabs[i]
                     .scene
@@ -1283,7 +1730,6 @@ impl super::OpenCADStudio {
                 position.y,
                 position.z,
             );
-            mt.rotation = 0.0;
             self.push_undo_snapshot(i, "MTEXT");
             let handle = self.commit_entity_handle(plane.place_entity(EntityType::MText(mt)));
             if annotative {
@@ -1321,7 +1767,8 @@ impl super::OpenCADStudio {
             ),
             None => return,
         };
-        let annotative = editing.is_none()
+        let annotative = mt.is_annotative
+            || editing.is_none()
             && crate::scene::annotative::text_style_is_annotative(
                 &self.tabs[i].scene.document,
                 &mt.style,
@@ -1341,9 +1788,12 @@ impl super::OpenCADStudio {
                 Some(EntityType::MText(t)) => {
                     t.value = mt.value;
                     t.height = mt.height;
+                    t.style = mt.style;
                     t.attachment_point = mt.attachment_point;
                     t.line_spacing_factor = mt.line_spacing_factor;
                     t.rectangle_width = mt.rectangle_width;
+                    t.rectangle_height = mt.rectangle_height;
+                    t.column_data = mt.column_data;
                 }
                 Some(EntityType::MultiLeader(ml)) => {
                     ml.context.text_string = mt.value;
@@ -1355,9 +1805,25 @@ impl super::OpenCADStudio {
                 }
                 _ => {}
             }
+            if matches!(self.tabs[i].scene.document.get_entity(h), Some(EntityType::MText(_))) {
+                crate::scene::annotative::set_entity_annotative(
+                    &mut self.tabs[i].scene.document,
+                    h,
+                    annotative,
+                );
+                if annotative {
+                    if let Some(scale) = self.tabs[i].scene.current_annotation_scale_handle() {
+                        crate::scene::annotative::create_annotation_context(
+                            &mut self.tabs[i].scene.document,
+                            h,
+                            scale,
+                        );
+                    }
+                }
+            }
             if matches!(
                 self.tabs[i].scene.document.get_entity(h),
-                Some(EntityType::MultiLeader(_))
+                Some(EntityType::MText(_) | EntityType::MultiLeader(_))
             ) {
                 self.tabs[i]
                     .scene
@@ -1383,7 +1849,6 @@ impl super::OpenCADStudio {
                 position.y,
                 position.z,
             );
-            mt.rotation = 0.0;
             self.push_undo_snapshot(i, "MTEXT");
             let handle = self.commit_entity_handle(plane.place_entity(EntityType::MText(mt)));
             self.tabs[i].dirty = true;
@@ -1400,6 +1865,11 @@ impl super::OpenCADStudio {
             // Bind the editor to the fresh entity so the next Apply updates it.
             if let (Some(h), Some(ed)) = (handle, self.mtext_editor.as_mut()) {
                 ed.editing = Some(h);
+                if let Some(EntityType::MText(mtext)) =
+                    self.tabs[i].scene.document.get_entity(h)
+                {
+                    ed.original = Some(mtext.clone());
+                }
             }
         }
         self.refresh_properties();

src/app/text_inline.rs

@@ -169,7 +169,7 @@ impl super::OpenCADStudio {
         };
 
         if field.is_rich() {
-            self.open_mtext_editor(pos, Some(target), &value, height);
+            self.open_mtext_editor(pos, Some(target), &value, height, None);
             self.unfocus_widgets()
         } else {
             self.open_text_inline(pos, Some(target), &value, height, field, None);

src/app/update/mod.rs

@@ -3904,10 +3904,7 @@ impl OpenCADStudio {
                 Task::none()
             }
             Message::MTextHeight(s) => {
-                if let Some(ed) = self.mtext_editor.as_mut() {
-                    ed.height = s;
-                }
-                self.rebuild_mtext_preview();
+                self.mtext_apply_span_number("height", s);
                 Task::none()
             }
             Message::MTextRectWidth(width) => {
@@ -3939,26 +3936,128 @@ impl OpenCADStudio {
                 Task::none()
             }
             Message::MTextOblique(s) => {
-                if let Some(ed) = self.mtext_editor.as_mut() {
-                    ed.oblique = s;
-                }
-                self.rebuild_mtext_preview();
+                self.mtext_apply_span_number("oblique", s);
                 Task::none()
             }
             Message::MTextWidth(s) => {
+                self.mtext_apply_span_number("width", s);
+                Task::none()
+            }
+            Message::MTextCharSpace(s) => {
+                self.mtext_apply_span_number("tracking", s);
+                Task::none()
+            }
+            Message::MTextUndo => {
+                self.mtext_undo();
+                Task::none()
+            }
+            Message::MTextRedo => {
+                self.mtext_redo();
+                Task::none()
+            }
+            Message::MTextStack => {
+                self.mtext_stack_selection();
+                Task::none()
+            }
+            Message::MTextClearFormatting => {
+                self.mtext_clear_formatting();
+                Task::none()
+            }
+            Message::MTextInsert(value) => {
+                self.mtext_type(&value);
+                Task::none()
+            }
+            Message::MTextAnnotative(value) => {
                 if let Some(ed) = self.mtext_editor.as_mut() {
-                    ed.width = s;
+                    ed.annotative = value;
                 }
                 self.rebuild_mtext_preview();
                 Task::none()
             }
-            Message::MTextCharSpace(s) => {
+            Message::MTextColumnMode(mode) => {
                 if let Some(ed) = self.mtext_editor.as_mut() {
-                    ed.char_space = s;
+                    match mode.as_str() {
+                        "Static" => {
+                            ed.column_type = 1;
+                            ed.column_auto_height = false;
+                        }
+                        "Dynamic auto" => {
+                            ed.column_type = 2;
+                            ed.column_auto_height = true;
+                        }
+                        "Dynamic manual" => {
+                            ed.column_type = 2;
+                            ed.column_auto_height = false;
+                        }
+                        _ => ed.column_type = 0,
+                    }
                 }
                 self.rebuild_mtext_preview();
                 Task::none()
             }
+            Message::MTextColumnCount(value) => {
+                if let Some(ed) = self.mtext_editor.as_mut() {
+                    ed.column_count = value;
+                }
+                self.rebuild_mtext_preview();
+                Task::none()
+            }
+            Message::MTextColumnWidth(value) => {
+                if let Some(ed) = self.mtext_editor.as_mut() {
+                    ed.column_width = value;
+                }
+                self.rebuild_mtext_preview();
+                Task::none()
+            }
+            Message::MTextColumnGutter(value) => {
+                if let Some(ed) = self.mtext_editor.as_mut() {
+                    ed.column_gutter = value;
+                }
+                self.rebuild_mtext_preview();
+                Task::none()
+            }
+            Message::MTextColumnHeight(value) => {
+                if let Some(ed) = self.mtext_editor.as_mut() {
+                    ed.rect_height = value;
+                }
+                self.rebuild_mtext_preview();
+                Task::none()
+            }
+            Message::MTextColumnFlowReversed(value) => {
+                if let Some(ed) = self.mtext_editor.as_mut() {
+                    ed.column_flow_reversed = value;
+                }
+                self.rebuild_mtext_preview();
+                Task::none()
+            }
+            Message::MTextParagraphNumber(field, value) => {
+                self.mtext_apply_paragraph_number(field, value);
+                Task::none()
+            }
+            Message::MTextFindText(value) => {
+                if let Some(ed) = self.mtext_editor.as_mut() {
+                    ed.find_text = value;
+                }
+                Task::none()
+            }
+            Message::MTextReplaceText(value) => {
+                if let Some(ed) = self.mtext_editor.as_mut() {
+                    ed.replace_text = value;
+                }
+                Task::none()
+            }
+            Message::MTextFindNext => {
+                self.mtext_find_next();
+                Task::none()
+            }
+            Message::MTextReplaceNext => {
+                self.mtext_replace_next();
+                Task::none()
+            }
+            Message::MTextReplaceAll => {
+                self.mtext_replace_all();
+                Task::none()
+            }
             Message::MTextJustify(ap) => {
                 if let Some(ed) = self.mtext_editor.as_mut() {
                     ed.attachment = ap;

src/app/view/overlay.rs

@@ -6,7 +6,8 @@ use iced::advanced::renderer;
 use iced::advanced::widget;
 use iced::advanced::{Layout, Shell, Widget};
 use iced::widget::{
-    button, column, container, mouse_area, row, scrollable, stack, text, text_input, Space,
+    button, checkbox, column, container, mouse_area, row, scrollable, stack, text, text_input,
+    Space,
 };
 use iced::{Background, Border, Color, Element, Event, Fill, Length, Rectangle, Size, Theme, Vector};
 use crate::t;
@@ -374,7 +375,7 @@ pub(super) fn mtext_editor_overlay<'a>(
         iced::widget::Space::new().width(Fill).height(Fill),
         t!("Text Editor"),
         content,
-        Message::MTextCancel,
+        Message::MTextOk,
         modal_offset,
         crate::ui::modal::ModalOptions::STANDARD,
     )
@@ -450,6 +451,9 @@ fn mtext_editor_content<'a>(
         .on_select(Message::MTextStyle)
         .text_size(11)
         .width(iced::Length::Fixed(96.0));
+    let annotative = checkbox(ed.annotative)
+        .on_toggle(Message::MTextAnnotative)
+        .size(14);
     let font_sel = if ed.font.trim().is_empty() {
         "[Style default]".to_string()
     } else {
@@ -487,6 +491,9 @@ fn mtext_editor_content<'a>(
 
     let row1 = row![
         style_pl,
+        row![annotative, text(t!("Annotative")).size(11)]
+            .spacing(3)
+            .align_y(iced::Alignment::Center),
         font_pl,
         small_input("2.5", &ed.height, Message::MTextHeight, 64.0),
         iced::widget::Space::new().width(6),
@@ -535,6 +542,14 @@ fn mtext_editor_content<'a>(
     .text_size(11)
     .width(iced::Length::Fixed(112.0));
     let row2 = row![
+        button(lbl("↶"))
+            .on_press(Message::MTextUndo)
+            .padding(3)
+            .style(btn_style),
+        button(lbl("↷"))
+            .on_press(Message::MTextRedo)
+            .padding(3)
+            .style(btn_style),
         lbl("O"),
         small_input("0", &ed.oblique, Message::MTextOblique, 48.0),
         lbl("W"),
@@ -573,6 +588,144 @@ fn mtext_editor_content<'a>(
             .on_press(Message::MTextLineSpacing(2.0))
             .padding(3)
             .style(btn_style),
+        button(lbl("Stack"))
+            .on_press(Message::MTextStack)
+            .padding(3)
+            .style(btn_style),
+        button(lbl("Clear"))
+            .on_press(Message::MTextClearFormatting)
+            .padding(3)
+            .style(btn_style),
+        button(lbl("°"))
+            .on_press(Message::MTextInsert("°".to_string()))
+            .padding(3)
+            .style(btn_style),
+        button(lbl("±"))
+            .on_press(Message::MTextInsert("±".to_string()))
+            .padding(3)
+            .style(btn_style),
+        button(lbl("⌀"))
+            .on_press(Message::MTextInsert("⌀".to_string()))
+            .padding(3)
+            .style(btn_style),
+    ]
+    .spacing(4)
+    .align_y(iced::Alignment::Center)
+    .width(width);
+
+    let column_mode = match (ed.column_type, ed.column_auto_height) {
+        (1, _) => "Static",
+        (2, true) => "Dynamic auto",
+        (2, false) => "Dynamic manual",
+        _ => "No columns",
+    }
+    .to_string();
+    let column_picker = iced::widget::pick_list(
+        Some(column_mode),
+        ["No columns", "Static", "Dynamic auto", "Dynamic manual"]
+            .into_iter()
+            .map(str::to_string)
+            .collect::<Vec<_>>(),
+        |value| value.to_string(),
+    )
+    .on_select(Message::MTextColumnMode)
+    .text_size(11)
+    .width(iced::Length::Fixed(120.0));
+    let reverse = checkbox(ed.column_flow_reversed)
+        .on_toggle(Message::MTextColumnFlowReversed)
+        .size(14);
+    let row3 = row![
+        lbl("Columns"),
+        column_picker,
+        lbl("Count"),
+        small_input("2", &ed.column_count, Message::MTextColumnCount, 42.0),
+        lbl("Height"),
+        text_input("0", &ed.rect_height)
+            .on_input(Message::MTextColumnHeight)
+            .width(iced::Length::Fixed(58.0))
+            .padding(3)
+            .size(12),
+        lbl("Width"),
+        small_input("0", &ed.column_width, Message::MTextColumnWidth, 58.0),
+        lbl("Gutter"),
+        small_input("0", &ed.column_gutter, Message::MTextColumnGutter, 58.0),
+        reverse,
+        lbl("Reverse"),
+        iced::widget::Space::new().width(8),
+        lbl("First"),
+        text_input("0", &ed.paragraph_first_indent)
+            .on_input(|value| Message::MTextParagraphNumber(
+                super::super::mtext_editor::ParaNumber::FirstIndent,
+                value,
+            ))
+            .width(iced::Length::Fixed(48.0))
+            .padding(3)
+            .size(12),
+        lbl("Left"),
+        text_input("0", &ed.paragraph_left_indent)
+            .on_input(|value| Message::MTextParagraphNumber(
+                super::super::mtext_editor::ParaNumber::LeftIndent,
+                value,
+            ))
+            .width(iced::Length::Fixed(48.0))
+            .padding(3)
+            .size(12),
+        lbl("Right"),
+        text_input("0", &ed.paragraph_right_indent)
+            .on_input(|value| Message::MTextParagraphNumber(
+                super::super::mtext_editor::ParaNumber::RightIndent,
+                value,
+            ))
+            .width(iced::Length::Fixed(48.0))
+            .padding(3)
+            .size(12),
+        lbl("Before"),
+        text_input("0", &ed.paragraph_space_before)
+            .on_input(|value| Message::MTextParagraphNumber(
+                super::super::mtext_editor::ParaNumber::SpaceBefore,
+                value,
+            ))
+            .width(iced::Length::Fixed(48.0))
+            .padding(3)
+            .size(12),
+        lbl("After"),
+        text_input("0", &ed.paragraph_space_after)
+            .on_input(|value| Message::MTextParagraphNumber(
+                super::super::mtext_editor::ParaNumber::SpaceAfter,
+                value,
+            ))
+            .width(iced::Length::Fixed(48.0))
+            .padding(3)
+            .size(12),
+    ]
+    .spacing(4)
+    .align_y(iced::Alignment::Center)
+    .width(width);
+    let row4 = row![
+        lbl("Find"),
+        text_input("Find", &ed.find_text)
+            .on_input(Message::MTextFindText)
+            .width(iced::Length::Fixed(140.0))
+            .padding(3)
+            .size(12),
+        button(lbl("Next"))
+            .on_press(Message::MTextFindNext)
+            .padding(3)
+            .style(btn_style),
+        lbl("Replace"),
+        text_input("Replace", &ed.replace_text)
+            .on_input(Message::MTextReplaceText)
+            .width(iced::Length::Fixed(140.0))
+            .padding(3)
+            .size(12),
+        button(lbl("Replace"))
+            .on_press(Message::MTextReplaceNext)
+            .padding(3)
+            .style(btn_style),
+        button(lbl("Replace All"))
+            .on_press(Message::MTextReplaceAll)
+            .padding(3)
+            .style(btn_style),
     ]
     .spacing(4)
     .align_y(iced::Alignment::Center)
@@ -710,13 +863,13 @@ fn mtext_editor_content<'a>(
             .into()
     };
 
-    // ── Top action bar: Apply on the right, exactly like the style managers'
-    // toolbar strip. Closing (the modal ✕) without applying discards the
-    // buffer, so there is no separate Cancel.
+    // ── Top action bar: Apply keeps editing; Close saves and exits. Escape
+    // remains the explicit discard path.
     let action_bar = container(
         row![
             iced::widget::Space::new().width(width),
             crate::ui::style::style_manager::tb_button(t!("Apply"), Message::MTextApply, true),
+            crate::ui::style::style_manager::tb_button(t!("Close Text Editor"), Message::MTextOk, true),
         ]
         .align_y(iced::Alignment::Center),
     )
@@ -730,7 +883,7 @@ fn mtext_editor_content<'a>(
     .padding([5, 8]);
 
     container(
-        column![action_bar, row1, row2, width_slider, body]
+        column![action_bar, row1, row2, row3, row4, width_slider, body]
             .spacing(6)
             .width(width)
             .height(height),

src/command.rs

@@ -1427,6 +1427,11 @@ pub enum CmdResult {
         handle: Option<Handle>,
         initial: String,
         height: f64,
+        /// Optional entity defaults collected by the interactive MTEXT
+        /// command (boundary, rotation, attachment, spacing and columns).
+        /// Existing-entity edits leave this as `None` and load the document
+        /// entity instead.
+        template: Option<Box<acadrust::MText>>,
     },
     /// Collect rich text without creating an MText entity.
     SuspendForMTextInput {

src/entities/attribute.rs

@@ -200,6 +200,7 @@ fn build_attr_render(input: AttrTextInputs<'_>, document: &acadrust::CadDocument
             oblique_angle,
             is_backward: width_factor < 0.0,
             is_upside_down: false,
+            is_vertical: false,
         };
         let layout = layout_mtext(&MTextRenderOpts {
             // Not an MTEXT: text in a fixed box, never columnar.
@@ -213,6 +214,8 @@ fn build_attr_render(input: AttrTextInputs<'_>, document: &acadrust::CadDocument
             attach_h_anchor,
             v_anchor,
             line_spacing_factor: 1.0,
+            exact_line_spacing: false,
+            rectangle_height: 0.0,
             vertical_text: false,
             want_glyph_boxes: false,
         });

src/entities/mtext.rs

@@ -5,7 +5,8 @@ use crate::entities::common::{
     edit_angle_prop as edit_angle, edit_prop as edit, num_prop as num_row, ro_prop as ro, square_grip, triangle_grip,
 };
 use crate::entities::text_support::{
-    layout_mtext, resolve_text_style, GlyphBox, MTextColumns, MTextRenderOpts, MTextVAnchor,
+    clamp_mtext_column_count, layout_mtext, resolve_text_style, GlyphBox, MTextColumns,
+    MTextRenderOpts, MTextVAnchor,
 };
 use crate::entities::traits::{Grippable, PropertyEditable, Transformable, RenderConvertible};
 use crate::scene::convert::acad_to_render::{RenderEntity, RenderObject};
@@ -24,10 +25,19 @@ fn columns_of(t: &MText) -> MTextColumns {
     if c.column_type == 0 {
         return MTextColumns::default();
     }
+    let count = clamp_mtext_column_count(c.column_count) as usize;
     MTextColumns {
-        count: c.column_count.max(0) as usize,
+        count,
         width: c.width as f32,
         gutter: c.gutter as f32,
+        flow_reversed: c.flow_reversed,
+        auto_height: c.auto_height,
+        heights: c
+            .heights
+            .iter()
+            .take(count)
+            .map(|height| *height as f32)
+            .collect(),
     }
 }
 
@@ -120,7 +130,14 @@ pub fn glyph_boxes(t: &MText, document: &acadrust::CadDocument) -> Vec<GlyphBox>
         attach_h_anchor,
         v_anchor,
         line_spacing_factor: t.line_spacing_factor as f32,
-        vertical_text: matches!(t.drawing_direction, DrawingDirection::TopToBottom),
+        exact_line_spacing: matches!(
+            t.line_spacing_style,
+            acadrust::entities::LineSpacingStyle::Exactly
+        ),
+        rectangle_height: t.rectangle_height.unwrap_or(0.0) as f32,
+        vertical_text: matches!(t.drawing_direction, DrawingDirection::TopToBottom)
+            || matches!(t.drawing_direction, DrawingDirection::ByStyle)
+                && resolved_style.is_vertical,
         want_glyph_boxes: true,
         columns: columns_of(t),
     });
@@ -169,7 +186,14 @@ fn to_render(t: &MText, document: &acadrust::CadDocument) -> RenderEntity {
         attach_h_anchor,
         v_anchor,
         line_spacing_factor: t.line_spacing_factor as f32,
-        vertical_text: matches!(t.drawing_direction, DrawingDirection::TopToBottom),
+        exact_line_spacing: matches!(
+            t.line_spacing_style,
+            acadrust::entities::LineSpacingStyle::Exactly
+        ),
+        rectangle_height: t.rectangle_height.unwrap_or(0.0) as f32,
+        vertical_text: matches!(t.drawing_direction, DrawingDirection::TopToBottom)
+            || matches!(t.drawing_direction, DrawingDirection::ByStyle)
+                && resolved_style.is_vertical,
         want_glyph_boxes: false,
         columns: columns_of(t),
     });
@@ -231,8 +255,43 @@ fn grips(t: &MText) -> Vec<GripDef> {
         t.insertion_point.z,
     );
     let (dir, k) = width_grip_axis(t);
-    let width_grip = p + dir * (k * t.rectangle_width.max(0.0));
-    vec![square_grip(0, p), triangle_grip(1, width_grip)]
+    let column_count = clamp_mtext_column_count(t.column_data.column_count);
+    let columns_active =
+        t.column_data.column_type != 0 && column_count > 1 && t.column_data.width > 0.0;
+    let block_width = if columns_active {
+        t.column_data.width * column_count as f64
+            + t.column_data.gutter * (column_count - 1) as f64
+    } else {
+        t.rectangle_width.max(0.0)
+    };
+    let width_grip = p + dir * (k * block_width);
+    let mut result = vec![square_grip(0, p), triangle_grip(1, width_grip)];
+
+    let height = t
+        .rectangle_height
+        .or_else(|| t.column_data.heights.first().copied())
+        .unwrap_or(0.0);
+    if height > 0.0 && !(columns_active && t.column_data.auto_height) {
+        let (sin, cos) = t.rotation.sin_cos();
+        let down = glam::DVec3::new(sin, -cos, 0.0);
+        let (_, vertical) = attach_anchors(t);
+        let factor = match vertical {
+            MTextVAnchor::Top
+            | MTextVAnchor::MiddleOfTopLine
+            | MTextVAnchor::BottomOfTopLine => 1.0,
+            MTextVAnchor::Middle => 0.5,
+            MTextVAnchor::Bottom | MTextVAnchor::MiddleOfBottomLine => -1.0,
+        };
+        result.push(triangle_grip(2, p + down * (factor * height)));
+    }
+    if columns_active {
+        result.push(triangle_grip(3, p + dir * (k * t.column_data.width)));
+        result.push(triangle_grip(
+            4,
+            p + dir * (k * (t.column_data.width + t.column_data.gutter)),
+        ));
+    }
+    result
 }
 
 fn columns_str(c: &acadrust::entities::MTextColumnData) -> &'static str {
@@ -248,10 +307,9 @@ fn properties(t: &MText, text_style_names: &[String]) -> Vec<PropSection> {
     // by the line-spacing factor.
     let line_space_distance = t.height * 1.666_666_666_666_667 * t.line_spacing_factor;
     let text_frame_on = (t.background_fill_flags & 0x10) != 0;
-    // Defined width is only live without columns; defined height is live for
-    // static columns or manual-height dynamic columns, grayed otherwise.
+    // Defined width is reported by Properties but is not edited there. Defined
+    // height remains live for static columns or manual-height dynamic columns.
     let col_type = t.column_data.column_type;
-    let width_editable = col_type == 0;
     let height_editable = col_type == 1 || (col_type == 2 && !t.column_data.auto_height);
     vec![
         PropSection {
@@ -353,7 +411,7 @@ fn properties(t: &MText, text_style_names: &[String]) -> Vec<PropSection> {
                             .collect(),
                     },
                 },
-                num_row(t!("Defined width").as_ref(), "rect_w", t.rectangle_width, width_editable),
+                num_row(t!("Defined width").as_ref(), "rect_w", t.rectangle_width, false),
                 num_row(
                     t!("Defined height").as_ref(),
                     "rect_h",
@@ -371,20 +429,6 @@ fn properties(t: &MText, text_style_names: &[String]) -> Vec<PropSection> {
                             .collect(),
                     },
                 },
-                // Count / width / gutter are live only when columns are on.
-                num_row(
-                    t!("Column count").as_ref(),
-                    "col_count",
-                    t.column_data.column_count as f64,
-                    col_type != 0,
-                ),
-                num_row(t!("Column width").as_ref(), "col_width", t.column_data.width, col_type != 0),
-                num_row(
-                    t!("Column gutter").as_ref(),
-                    "col_gutter",
-                    t.column_data.gutter,
-                    col_type != 0,
-                ),
                 Property {
                     label: t!("Text frame").into_owned(),
                     field: "text_frame",
@@ -502,21 +546,20 @@ fn apply_geom_prop(t: &mut MText, field: &str, value: &str) {
         "ins_y" => t.insertion_point.y = v,
         "ins_z" => t.insertion_point.z = v,
         "height" if v > 0.0 => t.height = v,
-        "rect_w" if v > 0.0 => t.rectangle_width = v,
-        "rect_h" if v > 0.0 => t.rectangle_height = Some(v),
+        "rect_h" if v >= 0.0 => t.rectangle_height = (v > 0.0).then_some(v),
         "rotation" => t.rotation = v.to_radians(),
-        "line_spacing" if v > 0.0 => t.line_spacing_factor = v,
+        "line_spacing" if (0.25..=4.0).contains(&v) => t.line_spacing_factor = v,
         // Editing the absolute distance back-solves the line-spacing factor so
         // the two stay consistent (distance = height × 5/3 × factor).
         "line_space_distance" if v > 0.0 => {
             let denom = t.height * 1.666_666_666_666_667;
             if denom > 0.0 {
-                t.line_spacing_factor = v / denom;
+                let factor = v / denom;
+                if (0.25..=4.0).contains(&factor) {
+                    t.line_spacing_factor = factor;
+                }
             }
         }
-        "col_count" if v >= 1.0 => t.column_data.column_count = v.round() as i32,
-        "col_width" if v > 0.0 => t.column_data.width = v,
-        "col_gutter" if v >= 0.0 => t.column_data.gutter = v,
         _ => {}
     }
 }
@@ -541,7 +584,60 @@ fn apply_grip(t: &mut MText, grip_id: usize, apply: GripApply) {
             let dx = p.x as f64 - t.insertion_point.x;
             let dy = p.y as f64 - t.insertion_point.y;
             let projected = dx * dir.x + dy * dir.y;
-            t.rectangle_width = (projected / k).max(0.01);
+            let width = (projected / k).max(0.0);
+            let column_count = clamp_mtext_column_count(t.column_data.column_count);
+            if t.column_data.column_type != 0 && column_count > 1 {
+                t.column_data.column_count = column_count;
+                let gaps = (column_count - 1) as f64;
+                t.column_data.width =
+                    ((width - t.column_data.gutter * gaps) / column_count as f64)
+                        .max(0.01);
+            } else {
+                t.rectangle_width = width;
+            }
+        }
+        (2, GripApply::Absolute(p)) => {
+            let (sin, cos) = t.rotation.sin_cos();
+            let down = glam::DVec3::new(sin, -cos, 0.0);
+            let delta = glam::DVec3::new(
+                p.x as f64 - t.insertion_point.x,
+                p.y as f64 - t.insertion_point.y,
+                p.z as f64 - t.insertion_point.z,
+            );
+            let (_, vertical) = attach_anchors(t);
+            let factor = match vertical {
+                MTextVAnchor::Top
+                | MTextVAnchor::MiddleOfTopLine
+                | MTextVAnchor::BottomOfTopLine => 1.0,
+                MTextVAnchor::Middle => 0.5,
+                MTextVAnchor::Bottom | MTextVAnchor::MiddleOfBottomLine => -1.0,
+            };
+            let height = (delta.dot(down) / factor).max(0.01);
+            t.rectangle_height = Some(height);
+            if t.column_data.column_type != 0 && !t.column_data.auto_height {
+                let column_count = clamp_mtext_column_count(t.column_data.column_count);
+                t.column_data.column_count = column_count;
+                t.column_data.heights = vec![height; column_count as usize];
+            }
+        }
+        (3, GripApply::Absolute(p)) => {
+            let (dir, k) = width_grip_axis(t);
+            let delta = glam::DVec3::new(
+                p.x as f64 - t.insertion_point.x,
+                p.y as f64 - t.insertion_point.y,
+                0.0,
+            );
+            t.column_data.width = (delta.dot(dir) / k).max(0.01);
+        }
+        (4, GripApply::Absolute(p)) => {
+            let (dir, k) = width_grip_axis(t);
+            let delta = glam::DVec3::new(
+                p.x as f64 - t.insertion_point.x,
+                p.y as f64 - t.insertion_point.y,
+                0.0,
+            );
+            t.column_data.gutter =
+                (delta.dot(dir) / k - t.column_data.width).max(0.0);
         }
         _ => {}
     }

src/entities/multileader.rs

@@ -195,6 +195,11 @@ fn to_render(ml: &MultiLeader, document: &acadrust::CadDocument) -> Option<Rende
                     },
                 ),
                 line_spacing_factor: ctx.line_spacing_factor as f32,
+                exact_line_spacing: matches!(
+                    ctx.line_spacing_style,
+                    acadrust::entities::LineSpacingStyle::Exactly
+                ),
+                rectangle_height: 0.0,
                 vertical_text: false,
                 want_glyph_boxes: false,
             }))
@@ -412,6 +417,7 @@ fn text_box_geom(ml: &MultiLeader) -> ([f64; 2], [f64; 3]) {
             oblique_angle: 0.0,
             is_backward: false,
             is_upside_down: false,
+            is_vertical: false,
         };
         let layout = layout_mtext(&MTextRenderOpts {
             columns: Default::default(),
@@ -424,6 +430,11 @@ fn text_box_geom(ml: &MultiLeader) -> ([f64; 2], [f64; 3]) {
             attach_h_anchor: 0.0,
             v_anchor: MTextVAnchor::Top,
             line_spacing_factor: ctx.line_spacing_factor as f32,
+            exact_line_spacing: matches!(
+                ctx.line_spacing_style,
+                acadrust::entities::LineSpacingStyle::Exactly
+            ),
+            rectangle_height: 0.0,
             vertical_text: vertical,
             want_glyph_boxes: false,
         });
@@ -2039,6 +2050,11 @@ impl MultiLeaderTess for MultiLeader {
                 attach_h_anchor: h_anchor,
                 v_anchor,
                 line_spacing_factor: ctx.line_spacing_factor as f32,
+                exact_line_spacing: matches!(
+                    ctx.line_spacing_style,
+                    acadrust::entities::LineSpacingStyle::Exactly
+                ),
+                rectangle_height: 0.0,
                 // Vertical flow (top-to-bottom) is stored per-context.
                 vertical_text: matches!(
                     ctx.text_flow_direction,

src/entities/table.rs

@@ -1187,6 +1187,7 @@ impl RenderConvertible for Table {
                     oblique_angle: style.map(|s| s.oblique_angle as f32).unwrap_or(0.0),
                     is_backward: style.map(|s| s.is_backward()).unwrap_or(false),
                     is_upside_down: style.map(|s| s.is_upside_down()).unwrap_or(false),
+                    is_vertical: style.map(|s| s.is_vertical).unwrap_or(false),
                 }
             };
 
@@ -1287,6 +1288,8 @@ impl RenderConvertible for Table {
                     attach_h_anchor,
                     v_anchor,
                     line_spacing_factor: 1.0,
+                    exact_line_spacing: false,
+                    rectangle_height: 0.0,
                     vertical_text: false,
                     want_glyph_boxes: false,
                 });
@@ -1453,6 +1456,7 @@ pub fn tessellate_table(
                 oblique_angle: style.map(|s| s.oblique_angle as f32).unwrap_or(0.0),
                 is_backward: style.map(|s| s.is_backward()).unwrap_or(false),
                 is_upside_down: style.map(|s| s.is_upside_down()).unwrap_or(false),
+                is_vertical: style.map(|s| s.is_vertical).unwrap_or(false),
             }
         };
 
@@ -1920,6 +1924,8 @@ pub fn tessellate_table(
                     attach_h_anchor,
                     v_anchor,
                     line_spacing_factor: 1.0,
+                    exact_line_spacing: false,
+                    rectangle_height: 0.0,
                     vertical_text: false,
                     want_glyph_boxes: false,
                 });

src/entities/text_support.rs

@@ -11,6 +11,7 @@ pub struct ResolvedTextStyle {
     pub oblique_angle: f32,
     pub is_backward: bool,
     pub is_upside_down: bool,
+    pub is_vertical: bool,
 }
 
 pub fn resolve_text_style(style_name: &str, document: &CadDocument) -> ResolvedTextStyle {
@@ -76,6 +77,7 @@ pub fn resolve_text_style(style_name: &str, document: &CadDocument) -> ResolvedT
         oblique_angle: style.map(|s| s.oblique_angle as f32).unwrap_or(0.0),
         is_backward: style.map(|s| s.is_backward()).unwrap_or(false),
         is_upside_down: style.map(|s| s.is_upside_down()).unwrap_or(false),
+        is_vertical: style.map(|s| s.is_vertical).unwrap_or(false),
     }
 }
 
@@ -1012,6 +1014,11 @@ pub struct MTextRenderOpts<'a> {
     pub v_anchor: MTextVAnchor,
     /// DXF code 44 — multiplier on the default 5/3-em baseline gap.
     pub line_spacing_factor: f32,
+    /// `true` fixes every baseline advance to the entity spacing. `false`
+    /// treats it as a minimum and expands for taller inline runs.
+    pub exact_line_spacing: bool,
+    /// User-defined text-box/column height. Zero means content-driven.
+    pub rectangle_height: f32,
     /// `true` when the entity is laid out top-to-bottom (DXF code 71 = 2).
     pub vertical_text: bool,
     /// When true, `layout_mtext` also fills `MTextLayout::glyph_boxes` with
@@ -1025,10 +1032,15 @@ pub struct MTextRenderOpts<'a> {
 
 /// An MTEXT's column layout, flattened from its `column_data`.
 ///
-/// Content moves to the next column at a `\N` break. Filling a column and
-/// spilling into the next on its own is not modelled: `heights` / `auto_height`
-/// are not read, so a column runs as long as its content does.
-#[derive(Clone, Copy, Debug, Default)]
+/// Content moves to the next column at an explicit `\N` break or when the
+/// configured manual/automatic column height is exhausted.
+pub(crate) const MAX_MTEXT_COLUMNS: i32 = 256;
+
+pub(crate) fn clamp_mtext_column_count(count: i32) -> i32 {
+    count.clamp(1, MAX_MTEXT_COLUMNS)
+}
+
+#[derive(Clone, Debug, Default)]
 pub struct MTextColumns {
     /// Column count. 0 or 1 both mean "no column layout".
     pub count: usize,
@@ -1036,6 +1048,12 @@ pub struct MTextColumns {
     pub width: f32,
     /// Gap between two adjacent columns, world units.
     pub gutter: f32,
+    /// Whether logical column flow starts at the opposite side.
+    pub flow_reversed: bool,
+    /// Dynamic-column height is balanced from content when true.
+    pub auto_height: bool,
+    /// Optional manual height for each logical column.
+    pub heights: Vec<f32>,
 }
 
 impl MTextColumns {
@@ -1046,7 +1064,17 @@ impl MTextColumns {
 
     /// Left edge of column `i`, relative to the text block's own left edge.
     pub fn offset_of(&self, i: usize) -> f32 {
-        i as f32 * (self.width + self.gutter)
+        let physical = if self.flow_reversed {
+            self.count.saturating_sub(1).saturating_sub(i)
+        } else {
+            i
+        };
+        physical as f32 * (self.width + self.gutter)
+    }
+
+    fn total_width(&self) -> f32 {
+        self.width * self.count as f32
+            + self.gutter.max(0.0) * self.count.saturating_sub(1) as f32
     }
 }
 
@@ -1118,6 +1146,7 @@ pub fn layout_mtext(opts: &MTextRenderOpts) -> MTextLayout {
         indent_right: f32,
         tab_stops: Vec<TabStop>,
         is_first_in_paragraph: bool,
+        starts_column: bool,
         /// Which column this line lives in; always 0 without a column layout.
         column: usize,
         /// Extra gap above (paragraph's first wrapped line only) / below (last
@@ -1128,7 +1157,7 @@ pub fn layout_mtext(opts: &MTextRenderOpts) -> MTextLayout {
         line_spacing: Option<ParaLineSpacing>,
     }
 
-    let cols = opts.columns;
+    let cols = opts.columns.clone();
     // A `\N` past the last column has nowhere to go — keep those lines in the
     // last one rather than laying them out beyond the block.
     let last_col = cols.count.saturating_sub(1);
@@ -1255,6 +1284,7 @@ pub fn layout_mtext(opts: &MTextRenderOpts) -> MTextLayout {
                 indent_right: para.indent_right,
                 tab_stops: para.tab_stops.clone(),
                 is_first_in_paragraph: idx == 0,
+                starts_column: idx == 0 && para.starts_column,
                 column,
                 // The gap above rides the first wrapped line; the gap below the
                 // last, so an interior wrap keeps normal single spacing.
@@ -1277,6 +1307,7 @@ pub fn layout_mtext(opts: &MTextRenderOpts) -> MTextLayout {
             indent_right: 0.0,
             tab_stops: Vec::new(),
             is_first_in_paragraph: true,
+            starts_column: false,
             column: 0,
             space_before: 0.0,
             space_after: 0.0,
@@ -1366,15 +1397,86 @@ pub fn layout_mtext(opts: &MTextRenderOpts) -> MTextLayout {
             };
             // A paragraph's own `\psm#`/`\pse#` overrides the entity factor for
             // its lines; `Exact` fixes the baseline gap outright.
+            let entity_gap = entity_h * ls_factor * (5.0 / 3.0) * base_font.line_spacing();
             match s.line_spacing {
                 Some(ParaLineSpacing::Exact(e)) if e > 0.0 => e,
                 Some(ParaLineSpacing::Multiple(m)) if m > 0.0 => {
                     mh * m * (5.0 / 3.0) * base_font.line_spacing()
                 }
-                _ => mh * ls_factor * (5.0 / 3.0) * base_font.line_spacing(),
+                _ if opts.exact_line_spacing => entity_gap,
+                _ => (mh * ls_factor * (5.0 / 3.0) * base_font.line_spacing())
+                    .max(entity_gap),
             }
         })
         .collect();
+
+    // Flow lines into the next column when the active column's configured
+    // height is exhausted. Explicit `\N` breaks remain authoritative. Dynamic
+    // auto-height balances the content; static/manual columns use their stored
+    // height (falling back to the entity rectangle height).
+    if cols.active() {
+        let mut pending_after = 0.0_f32;
+        let total_advance: f32 = sub_lines
+            .iter()
+            .enumerate()
+            .map(|(index, line)| {
+                if line.starts_column {
+                    pending_after = 0.0;
+                }
+                let spacing = if line.is_first_in_paragraph {
+                    line.space_before + pending_after
+                } else {
+                    0.0
+                };
+                pending_after = line.space_after;
+                per_line_h.get(index).copied().unwrap_or(entity_h) + spacing
+            })
+            .sum();
+        let balanced = (total_advance / cols.count.max(1) as f32).max(entity_h);
+        let mut current_column = 0usize;
+        let mut used = 0.0_f32;
+        let mut pending_after = 0.0_f32;
+        for (index, line) in sub_lines.iter_mut().enumerate() {
+            if line.starts_column {
+                current_column = (current_column + 1).min(cols.count - 1);
+                used = 0.0;
+                pending_after = 0.0;
+            }
+            let limit = if cols.auto_height {
+                balanced
+            } else {
+                cols.heights
+                    .get(current_column)
+                    .copied()
+                    .filter(|height| *height > 0.0)
+                    .unwrap_or(opts.rectangle_height)
+            };
+            let line_advance = per_line_h.get(index).copied().unwrap_or(entity_h);
+            let spacing = if line.is_first_in_paragraph {
+                line.space_before + pending_after
+            } else {
+                0.0
+            };
+            let mut advance = line_advance + spacing;
+            if limit > 0.0
+                && used > 0.0
+                && used + advance > limit
+                && current_column + 1 < cols.count
+            {
+                current_column += 1;
+                used = 0.0;
+                advance = line_advance
+                    + if line.is_first_in_paragraph {
+                        line.space_before
+                    } else {
+                        0.0
+                    };
+            }
+            line.column = current_column;
+            used += advance;
+            pending_after = line.space_after;
+        }
+    }
     // Per-line text height — the tallest Word on the line, an empty line
     // inheriting the previous line's height (same rule as `per_line_h`). Unlike
     // `line_max_h` it has no `entity_h` floor, so it reflects the ACTUAL text
@@ -1442,7 +1544,12 @@ pub fn layout_mtext(opts: &MTextRenderOpts) -> MTextLayout {
         MTextVAnchor::BottomOfTopLine => 0.0,
     };
     let attach_h_anchor = opts.attach_h_anchor;
-    let box_left = -attach_h_anchor * rect_w;
+    let block_width = if cols.active() {
+        cols.total_width()
+    } else {
+        rect_w
+    };
+    let box_left = -attach_h_anchor * block_width;
     let rot = opts.rotation;
     let (cos_r, sin_r) = (rot.cos(), rot.sin());
     let ins_x = opts.insertion[0];
@@ -1953,6 +2060,49 @@ pub fn layout_mtext(opts: &MTextRenderOpts) -> MTextLayout {
                     emit(denominator, valign_dy);
                     emit(numerator, valign_dy + run_h * STACK_RAISE);
 
+                    if opts.want_glyph_boxes {
+                        let slots = numerator.chars().count()
+                            + denominator.chars().count()
+                            + usize::from(!denominator.is_empty());
+                        if slots > 0 {
+                            let top = valign_dy + run_h * (STACK_RAISE + STACK_HALF_SCALE);
+                            for index in 0..slots {
+                                let x0 = cursor_x + slot_w * index as f32 / slots as f32;
+                                let x1 = cursor_x + slot_w * (index + 1) as f32 / slots as f32;
+                                let corners = [
+                                    to_world(line_base_x, line_base_y, x0, valign_dy),
+                                    to_world(line_base_x, line_base_y, x1, valign_dy),
+                                    to_world(line_base_x, line_base_y, x0, top),
+                                    to_world(line_base_x, line_base_y, x1, top),
+                                ];
+                                let xmin = corners
+                                    .iter()
+                                    .map(|p| p.0)
+                                    .fold(f32::INFINITY, f32::min);
+                                let xmax = corners
+                                    .iter()
+                                    .map(|p| p.0)
+                                    .fold(f32::NEG_INFINITY, f32::max);
+                                let ymin = corners
+                                    .iter()
+                                    .map(|p| p.1)
+                                    .fold(f32::INFINITY, f32::min);
+                                let ymax = corners
+                                    .iter()
+                                    .map(|p| p.1)
+                                    .fold(f32::NEG_INFINITY, f32::max);
+                                glyph_boxes.push(GlyphBox {
+                                    vis,
+                                    xmin,
+                                    xmax,
+                                    ymin,
+                                    ymax,
+                                });
+                                vis += 1;
+                            }
+                        }
+                    }
+
                     if *bar && slot_w > 0.0 {
                         // The rule is plain geometry, not a glyph, so it rides a
                         // run-less group — those keep their strokes, while a
@@ -1975,6 +2125,11 @@ pub fn layout_mtext(opts: &MTextRenderOpts) -> MTextLayout {
                             run: None,
                         });
                     }
+                    local_bounds[0] = local_bounds[0].min(cursor_x);
+                    local_bounds[1] = local_bounds[1].min(line_ly + valign_dy);
+                    local_bounds[2] = local_bounds[2].max(cursor_x + slot_w);
+                    local_bounds[3] = local_bounds[3]
+                        .max(line_ly + valign_dy + run_h * (STACK_RAISE + STACK_HALF_SCALE));
                     cursor_x += slot_w;
                 }
                 AtomKind::Space => {
@@ -2169,6 +2324,7 @@ mod tests {
             oblique_angle: 0.0,
             is_backward: false,
             is_upside_down: false,
+            is_vertical: false,
         }
     }
 
@@ -2199,6 +2355,8 @@ mod tests {
             attach_h_anchor: 0.0,
             v_anchor: MTextVAnchor::Top,
             line_spacing_factor: 1.0,
+            exact_line_spacing: false,
+            rectangle_height: 0.0,
             vertical_text: false,
             want_glyph_boxes: false,
         });
@@ -2222,6 +2380,8 @@ mod tests {
             attach_h_anchor: 0.0,
             v_anchor: MTextVAnchor::Top,
             line_spacing_factor: 1.0,
+            exact_line_spacing: false,
+            rectangle_height: 0.0,
             vertical_text: false,
             want_glyph_boxes: false,
         });
@@ -2378,6 +2538,7 @@ mod v_anchor_tests {
             oblique_angle: 0.0,
             is_backward: false,
             is_upside_down: false,
+            is_vertical: false,
         };
         layout_mtext(&MTextRenderOpts {
             columns: Default::default(),
@@ -2390,6 +2551,8 @@ mod v_anchor_tests {
             attach_h_anchor: 0.0,
             v_anchor: MTextVAnchor::Top,
             line_spacing_factor: 1.0,
+            exact_line_spacing: false,
+            rectangle_height: 0.0,
             vertical_text: false,
             want_glyph_boxes: true,
         })

src/modules/annotate/mtext.rs

@@ -1,7 +1,11 @@
-use crate::command::{CadCommand, CmdResult};
+use acadrust::entities::mtext::AttachmentPoint;
+use acadrust::types::Vector3;
+use acadrust::MText;
+use glam::DVec3;
+
+use crate::command::{CadCommand, CmdOption, CmdResult, DynField, WorkingPlane};
 use crate::modules::{IconKind, ModuleEvent, ToolDef};
 use crate::scene::model::wire_model::WireModel;
-use glam::DVec3;
 use crate::t;
 
 pub const ICON: IconKind = IconKind::Svg(include_bytes!("../../../assets/icons/mtext.svg"));
@@ -15,20 +19,180 @@ pub fn tool() -> ToolDef {
     }
 }
 
+#[derive(Clone, Copy, Debug, PartialEq, Eq)]
 enum Step {
-    InsertPoint,
+    FirstCorner,
+    OppositeCorner,
+    Height,
+    Justify,
+    LineSpacing,
+    Rotation,
+    Style,
+    Width,
+    ColumnMode,
+    ColumnCount,
+    ColumnWidth,
+    ColumnGutter,
 }
 
 pub struct MTextCommand {
     step: Step,
+    first: Option<DVec3>,
+    plane: WorkingPlane,
     height: f64,
+    style: String,
+    attachment: AttachmentPoint,
+    line_spacing: f64,
+    rotation: f64,
+    width: Option<f64>,
+    column_type: i16,
+    column_count: i32,
+    column_width: f64,
+    column_gutter: f64,
 }
 
 impl MTextCommand {
-    pub fn with_height(height: f64) -> Self {
+    pub fn with_defaults(height: f64, style: String) -> Self {
         Self {
-            step: Step::InsertPoint,
-            height,
+            step: Step::FirstCorner,
+            first: None,
+            plane: WorkingPlane::default(),
+            height: height.max(1e-6),
+            style,
+            attachment: AttachmentPoint::TopLeft,
+            line_spacing: 1.0,
+            rotation: 0.0,
+            width: None,
+            column_type: 0,
+            column_count: 2,
+            column_width: 0.0,
+            column_gutter: 0.0,
+        }
+    }
+
+    fn resume_point_step(&mut self) {
+        self.step = if self.first.is_some() {
+            Step::OppositeCorner
+        } else {
+            Step::FirstCorner
+        };
+    }
+
+    fn point_options() -> Vec<CmdOption> {
+        vec![
+            CmdOption::new("Height", "HEIGHT"),
+            CmdOption::new("Justify", "JUSTIFY"),
+            CmdOption::new("Line spacing", "LINESPACING"),
+            CmdOption::new("Rotation", "ROTATION"),
+            CmdOption::new("Style", "STYLE"),
+            CmdOption::new("Width", "WIDTH"),
+            CmdOption::new("Columns", "COLUMNS"),
+        ]
+    }
+
+    fn begin_option(&mut self, keyword: &str) -> bool {
+        self.step = match keyword {
+            "H" | "HEIGHT" => Step::Height,
+            "J" | "JUSTIFY" => Step::Justify,
+            "L" | "LINESPACING" | "LINE SPACING" => Step::LineSpacing,
+            "R" | "ROTATION" => Step::Rotation,
+            "S" | "STYLE" => Step::Style,
+            "W" | "WIDTH" => Step::Width,
+            "C" | "COLUMNS" => Step::ColumnMode,
+            _ => return false,
+        };
+        true
+    }
+
+    fn boundary_geometry(&self, opposite: DVec3) -> (DVec3, f64, f64) {
+        let first = self.first.unwrap_or(opposite);
+        let local = self.plane.vector_to_local(opposite - first);
+        let (sin, cos) = self.rotation.sin_cos();
+        let picked_horizontal = local.x * cos + local.y * sin;
+        let vertical = -local.x * sin + local.y * cos;
+        let width = self.width.unwrap_or(picked_horizontal.abs());
+        let horizontal = if self.width.is_some() {
+            width.copysign(if picked_horizontal.abs() > 1e-12 {
+                picked_horizontal
+            } else {
+                1.0
+            })
+        } else {
+            picked_horizontal
+        };
+        let (xmin, xmax) = (horizontal.min(0.0), horizontal.max(0.0));
+        let (ymin, ymax) = (vertical.min(0.0), vertical.max(0.0));
+        let horizontal_anchor = match self.attachment {
+            AttachmentPoint::TopLeft
+            | AttachmentPoint::MiddleLeft
+            | AttachmentPoint::BottomLeft => 0.0,
+            AttachmentPoint::TopCenter
+            | AttachmentPoint::MiddleCenter
+            | AttachmentPoint::BottomCenter => 0.5,
+            AttachmentPoint::TopRight
+            | AttachmentPoint::MiddleRight
+            | AttachmentPoint::BottomRight => 1.0,
+        };
+        let vertical_anchor = match self.attachment {
+            AttachmentPoint::TopLeft
+            | AttachmentPoint::TopCenter
+            | AttachmentPoint::TopRight => 1.0,
+            AttachmentPoint::MiddleLeft
+            | AttachmentPoint::MiddleCenter
+            | AttachmentPoint::MiddleRight => 0.5,
+            AttachmentPoint::BottomLeft
+            | AttachmentPoint::BottomCenter
+            | AttachmentPoint::BottomRight => 0.0,
+        };
+        let anchor_x = xmin + (xmax - xmin) * horizontal_anchor;
+        let anchor_y = ymin + (ymax - ymin) * vertical_anchor;
+        let offset = DVec3::new(
+            anchor_x * cos - anchor_y * sin,
+            anchor_x * sin + anchor_y * cos,
+            0.0,
+        );
+        (
+            first + self.plane.vector_to_world(offset),
+            width,
+            vertical.abs(),
+        )
+    }
+
+    fn open_editor(&self, opposite: DVec3) -> CmdResult {
+        let (insertion, width, boundary_height) = self.boundary_geometry(opposite);
+        let mut template = MText::default();
+        template.insertion_point = Vector3::new(insertion.x, insertion.y, insertion.z);
+        template.height = self.height;
+        template.rectangle_width = width.max(0.0);
+        template.rectangle_height = (boundary_height > 1e-9).then_some(boundary_height);
+        template.rotation = self.rotation;
+        template.style = self.style.clone();
+        template.attachment_point = self.attachment;
+        template.line_spacing_factor = self.line_spacing;
+        template.column_data.column_type = self.column_type;
+        if self.column_type != 0 {
+            template.column_data.column_count =
+                crate::entities::text_support::clamp_mtext_column_count(self.column_count);
+            template.column_data.auto_height = self.column_type == 2;
+            template.column_data.width = if self.column_width > 0.0 {
+                self.column_width
+            } else if width > 0.0 {
+                width
+            } else {
+                self.height * 10.0
+            };
+            template.column_data.gutter = if self.column_gutter > 0.0 {
+                self.column_gutter
+            } else {
+                self.height
+            };
+        }
+        CmdResult::OpenMTextEditor {
+            pos: insertion,
+            handle: None,
+            initial: String::new(),
+            height: self.height,
+            template: Some(Box::new(template)),
         }
     }
 }
@@ -38,34 +202,208 @@ impl CadCommand for MTextCommand {
         "MTEXT"
     }
 
+    fn set_working_plane(&mut self, plane: WorkingPlane) {
+        self.plane = plane;
+    }
+
     fn prompt(&self) -> String {
-        match &self.step {
-            Step::InsertPoint => t!("MTEXT  Specify insertion point:").into_owned(),
+        match self.step {
+            Step::FirstCorner => t!("MTEXT  Specify first corner:").into_owned(),
+            Step::OppositeCorner => t!("MTEXT  Specify opposite corner:").into_owned(),
+            Step::Height => crate::tf!("MTEXT  Specify text height <{}>:", self.height).into_owned(),
+            Step::Justify => t!("MTEXT  Enter justification [TL / TC / TR / ML / MC / MR / BL / BC / BR] <TL>:").into_owned(),
+            Step::LineSpacing => crate::tf!("MTEXT  Enter line spacing factor (0.25-4.00) <{}>:", self.line_spacing).into_owned(),
+            Step::Rotation => crate::tf!("MTEXT  Specify rotation angle <{}>:", self.rotation.to_degrees()).into_owned(),
+            Step::Style => crate::tf!("MTEXT  Enter text style <{}>:", self.style).into_owned(),
+            Step::Width => crate::tf!("MTEXT  Specify boundary width <{}>:", self.width.unwrap_or(0.0)).into_owned(),
+            Step::ColumnMode => t!("MTEXT  Columns [None / Static / Dynamic] <None>:").into_owned(),
+            Step::ColumnCount => crate::tf!("MTEXT  Enter column count <{}>:", self.column_count).into_owned(),
+            Step::ColumnWidth => crate::tf!("MTEXT  Enter column width <{}>:", self.column_width).into_owned(),
+            Step::ColumnGutter => crate::tf!("MTEXT  Enter column gutter <{}>:", self.column_gutter).into_owned(),
         }
     }
 
-    fn on_point(&mut self, pt: DVec3) -> CmdResult {
-        // Hand off to the in-place editor (toolbar + text area + live preview).
-        CmdResult::OpenMTextEditor {
-            pos: pt,
-            handle: None,
-            initial: String::new(),
-            height: self.height,
+    fn options(&self) -> Vec<CmdOption> {
+        match self.step {
+            Step::FirstCorner | Step::OppositeCorner => Self::point_options(),
+            Step::Justify => ["TL", "TC", "TR", "ML", "MC", "MR", "BL", "BC", "BR"]
+                .into_iter()
+                .map(|value| CmdOption::new(value, value))
+                .collect(),
+            Step::ColumnMode => vec![
+                CmdOption::new("None", "NONE"),
+                CmdOption::new("Static", "STATIC"),
+                CmdOption::new("Dynamic", "DYNAMIC"),
+            ],
+            _ => Vec::new(),
+        }
+    }
+
+    fn point_step_accepts_keywords(&self) -> bool {
+        matches!(self.step, Step::FirstCorner | Step::OppositeCorner)
+    }
+
+    fn wants_text_input(&self) -> bool {
+        true
+    }
+
+    fn wants_text_with_spaces(&self) -> bool {
+        matches!(self.step, Step::Style)
+    }
+
+    fn dyn_field(&self) -> DynField {
+        match self.step {
+            Step::Rotation => DynField::Angle,
+            Step::Height
+            | Step::LineSpacing
+            | Step::Width
+            | Step::ColumnCount
+            | Step::ColumnWidth
+            | Step::ColumnGutter => DynField::Scalar,
+            _ => DynField::Point,
+        }
+    }
+
+    fn on_text_input(&mut self, text: &str) -> Option<CmdResult> {
+        let trimmed = text.trim();
+        let upper = trimmed.to_ascii_uppercase();
+        if matches!(self.step, Step::FirstCorner | Step::OppositeCorner)
+            && self.begin_option(&upper)
+        {
+            return Some(CmdResult::NeedPoint);
+        }
+
+        match self.step {
+            Step::Height => {
+                let value = crate::entities::common::parse_typed_length(trimmed)?;
+                if value <= 0.0 {
+                    return None;
+                }
+                self.height = value;
+                self.resume_point_step();
+            }
+            Step::Justify => {
+                self.attachment = match upper.as_str() {
+                    "TL" => AttachmentPoint::TopLeft,
+                    "TC" => AttachmentPoint::TopCenter,
+                    "TR" => AttachmentPoint::TopRight,
+                    "ML" => AttachmentPoint::MiddleLeft,
+                    "MC" => AttachmentPoint::MiddleCenter,
+                    "MR" => AttachmentPoint::MiddleRight,
+                    "BL" => AttachmentPoint::BottomLeft,
+                    "BC" => AttachmentPoint::BottomCenter,
+                    "BR" => AttachmentPoint::BottomRight,
+                    _ => return None,
+                };
+                self.resume_point_step();
+            }
+            Step::LineSpacing => {
+                let value = trimmed.replace(',', ".").parse::<f64>().ok()?;
+                if !(0.25..=4.0).contains(&value) {
+                    return None;
+                }
+                self.line_spacing = value;
+                self.resume_point_step();
+            }
+            Step::Rotation => {
+                self.rotation = crate::entities::common::parse_typed_direction(trimmed)?;
+                self.resume_point_step();
+            }
+            Step::Style => {
+                if trimmed.is_empty() {
+                    return None;
+                }
+                self.style = trimmed.to_string();
+                self.resume_point_step();
+            }
+            Step::Width => {
+                let value = crate::entities::common::parse_typed_length(trimmed)?;
+                if value < 0.0 {
+                    return None;
+                }
+                self.width = Some(value);
+                self.resume_point_step();
+            }
+            Step::ColumnMode => {
+                self.column_type = match upper.as_str() {
+                    "N" | "NONE" => 0,
+                    "S" | "STATIC" => 1,
+                    "D" | "DYNAMIC" => 2,
+                    _ => return None,
+                };
+                if self.column_type == 0 {
+                    self.resume_point_step();
+                } else {
+                    self.step = Step::ColumnCount;
+                }
+            }
+            Step::ColumnCount => {
+                let value = trimmed.parse::<i32>().ok()?;
+                if !(1..=crate::entities::text_support::MAX_MTEXT_COLUMNS).contains(&value) {
+                    return None;
+                }
+                self.column_count = value;
+                self.step = Step::ColumnWidth;
+            }
+            Step::ColumnWidth => {
+                let value = crate::entities::common::parse_typed_length(trimmed)?;
+                if value <= 0.0 {
+                    return None;
+                }
+                self.column_width = value;
+                self.step = Step::ColumnGutter;
+            }
+            Step::ColumnGutter => {
+                let value = crate::entities::common::parse_typed_length(trimmed)?;
+                if value < 0.0 {
+                    return None;
+                }
+                self.column_gutter = value;
+                self.resume_point_step();
+            }
+            Step::FirstCorner | Step::OppositeCorner => return None,
+        }
+        Some(CmdResult::NeedPoint)
+    }
+
+    fn on_point(&mut self, point: DVec3) -> CmdResult {
+        match self.step {
+            Step::FirstCorner => {
+                self.first = Some(point);
+                self.step = Step::OppositeCorner;
+                CmdResult::NeedPoint
+            }
+            Step::OppositeCorner => self.open_editor(point),
+            _ => CmdResult::NeedPoint,
         }
     }
 
     fn on_enter(&mut self) -> CmdResult {
-        CmdResult::Cancel
+        match self.step {
+            Step::Height
+            | Step::Justify
+            | Step::LineSpacing
+            | Step::Rotation
+            | Step::Style
+            | Step::Width
+            | Step::ColumnMode
+            | Step::ColumnCount
+            | Step::ColumnWidth
+            | Step::ColumnGutter => {
+                self.resume_point_step();
+                CmdResult::NeedPoint
+            }
+            _ => CmdResult::Cancel,
+        }
     }
+
     fn on_escape(&mut self) -> CmdResult {
         CmdResult::Cancel
     }
 
-    fn on_mouse_move(&mut self, _pt: DVec3) -> Option<WireModel> {
+    fn on_mouse_move(&mut self, _point: DVec3) -> Option<WireModel> {
         None
     }
 }
 
-
-// ── Autocomplete registry ─────────────────────────────────
-inventory::submit!(crate::command::CommandRegistration { names: &["MTEXT"] });  // MTextCommand
+inventory::submit!(crate::command::CommandRegistration { names: &["MTEXT"] });

src/scene/cache/properties.rs

@@ -96,6 +96,7 @@ pub fn general_section(entity: &EntityType) -> PropSection {
 
     if matches!(entity, EntityType::Text(_))
         || matches!(entity, EntityType::LwPolyline(polyline) if crate::entities::lwpolyline::is_rectangle(polyline))
+        || matches!(entity, EntityType::MText(_))
     {
         section.props.retain(|prop| prop.field != "handle");
     }

src/scene/convert/tessellate.rs

@@ -78,6 +78,81 @@ fn oriented_text_corners(
     ]
 }
 
+fn oriented_mtext_corner_groups(
+    verts: &[crate::scene::pipeline::text_gpu::TextVertex],
+    text: &acadrust::MText,
+    rotation: f64,
+    pad: f64,
+    annotation_scale: f64,
+) -> Vec<[[f64; 2]; 4]> {
+    let columns = &text.column_data;
+    let count = crate::entities::text_support::clamp_mtext_column_count(columns.column_count)
+        as usize;
+    if columns.column_type == 0 || count <= 1 || columns.width <= 0.0 {
+        return vec![oriented_text_corners(
+            verts,
+            [text.insertion_point.x, text.insertion_point.y],
+            rotation,
+            pad,
+        )];
+    }
+
+    let width = columns.width * annotation_scale;
+    let gutter = columns.gutter.max(0.0) * annotation_scale;
+    let total_width = width * count as f64 + gutter * count.saturating_sub(1) as f64;
+    let anchor = match text.attachment_point {
+        acadrust::entities::mtext::AttachmentPoint::TopCenter
+        | acadrust::entities::mtext::AttachmentPoint::MiddleCenter
+        | acadrust::entities::mtext::AttachmentPoint::BottomCenter => 0.5,
+        acadrust::entities::mtext::AttachmentPoint::TopRight
+        | acadrust::entities::mtext::AttachmentPoint::MiddleRight
+        | acadrust::entities::mtext::AttachmentPoint::BottomRight => 1.0,
+        _ => 0.0,
+    };
+    let block_left = -anchor * total_width;
+    let origin = [text.insertion_point.x, text.insertion_point.y];
+    let (sin_r, cos_r) = rotation.sin_cos();
+    let mut bounds = vec![[f64::MAX, f64::MAX, f64::MIN, f64::MIN]; count];
+    for vertex in verts {
+        let x = vertex.pos[0] as f64 + vertex.pos_low[0] as f64 - origin[0];
+        let y = vertex.pos[1] as f64 + vertex.pos_low[1] as f64 - origin[1];
+        let local_x = x * cos_r + y * sin_r;
+        let local_y = -x * sin_r + y * cos_r;
+        let stride = width + gutter;
+        let physical = ((local_x - block_left) / stride)
+            .floor()
+            .clamp(0.0, count.saturating_sub(1) as f64) as usize;
+        bounds[physical][0] = bounds[physical][0].min(local_x);
+        bounds[physical][1] = bounds[physical][1].min(local_y);
+        bounds[physical][2] = bounds[physical][2].max(local_x);
+        bounds[physical][3] = bounds[physical][3].max(local_y);
+    }
+    let to_world = |x: f64, y: f64| {
+        [
+            origin[0] + x * cos_r - y * sin_r,
+            origin[1] + x * sin_r + y * cos_r,
+        ]
+    };
+    bounds
+        .into_iter()
+        .filter(|bounds| bounds[0] <= bounds[2] && bounds[1] <= bounds[3])
+        .map(|bounds| {
+            let [left, bottom, right, top] = [
+                bounds[0] - pad,
+                bounds[1] - pad,
+                bounds[2] + pad,
+                bounds[3] + pad,
+            ];
+            [
+                to_world(left, bottom),
+                to_world(right, bottom),
+                to_world(right, top),
+                to_world(left, top),
+            ]
+        })
+        .collect()
+}
+
 pub(crate) fn explicit_mtext_background(entity: &EntityType) -> Option<[f32; 4]> {
     let EntityType::MText(text) = entity else {
         return None;
@@ -856,11 +931,12 @@ pub fn tessellate(
                                     .unwrap_or(m.rotation);
                                 let text_height = m.height * anno;
                                 let pad = (m.background_scale - 1.0).max(0.0) * text_height;
-                                let corners = oriented_text_corners(
+                                let corner_groups = oriented_mtext_corner_groups(
                                     &sdf_verts,
-                                    [m.insertion_point.x, m.insertion_point.y],
+                                    m,
                                     text_rotation,
                                     pad,
+                                    anno,
                                 );
                                 // Fill / mask — two triangles behind the glyphs.
                                 if has_fill {
@@ -869,13 +945,18 @@ pub fn tessellate(
                                     } else {
                                         color_or_inherit(&m.background_color, bg_color)
                                     };
-                                    let mut ft = Vec::with_capacity(6);
-                                    let mut ftl = Vec::with_capacity(6);
-                                    for &k in &[0usize, 1, 2, 0, 2, 3] {
-                                        let (h, lo) =
-                                            split_ds_xyz(corners[k][0], corners[k][1], elev_v);
-                                        ft.push(h);
-                                        ftl.push(lo);
+                                    let mut ft = Vec::with_capacity(6 * corner_groups.len());
+                                    let mut ftl = Vec::with_capacity(6 * corner_groups.len());
+                                    for corners in &corner_groups {
+                                        for &k in &[0usize, 1, 2, 0, 2, 3] {
+                                            let (h, lo) = split_ds_xyz(
+                                                corners[k][0],
+                                                corners[k][1],
+                                                elev_v,
+                                            );
+                                            ft.push(h);
+                                            ftl.push(lo);
+                                        }
                                     }
                                     wires.push(WireModel {
                                         point_marker: None,
@@ -914,19 +995,24 @@ pub fn tessellate(
                                 // Text frame — a closed rectangle in the text
                                 // colour around the same box.
                                 if has_frame {
-                                    let loop_xy = [
-                                        corners[0],
-                                        corners[1],
-                                        corners[2],
-                                        corners[3],
-                                        corners[0],
-                                    ];
-                                    let mut fp = Vec::with_capacity(5);
-                                    let mut fpl = Vec::with_capacity(5);
-                                    for &[x, y] in &loop_xy {
-                                        let (h, lo) = split_ds_xyz(x, y, elev_v);
-                                        fp.push(h);
-                                        fpl.push(lo);
+                                    let mut fp = Vec::with_capacity(6 * corner_groups.len());
+                                    let mut fpl = Vec::with_capacity(6 * corner_groups.len());
+                                    for (group_index, corners) in corner_groups.iter().enumerate() {
+                                        if group_index > 0 {
+                                            fp.push([f32::NAN; 3]);
+                                            fpl.push([0.0; 3]);
+                                        }
+                                        for &[x, y] in &[
+                                            corners[0],
+                                            corners[1],
+                                            corners[2],
+                                            corners[3],
+                                            corners[0],
+                                        ] {
+                                            let (h, lo) = split_ds_xyz(x, y, elev_v);
+                                            fp.push(h);
+                                            fpl.push(lo);
+                                        }
                                     }
                                     wires.push(WireModel {
                                         point_marker: None,