feat: node graph overlay; move to opencadcodec/opencadkernel/opencadgraph

The codec and kernel repositories and crates are renamed opencadcodec and
opencadkernel. Inside OCS they are depended on under short keys, so code
reads `codec::`, `kernel::` and the new `graph::` (opencadgraph, the node
graph engine). File-format and protocol spellings stay as they were: the
ACIS product id `acadrust`, the ACADRUST_* switches and the plugin
version keys `acadrust_version` / `acadrust_source`.

A button left of MCP on the command line opens a translucent node graph
over the viewport, with a palette of object, input, math, logic, list,
text and geometry nodes added by click or drag. An object node owns
drawing entities and its rows are the Properties panel's own rows for
them: the single-object page is extracted from refresh_properties as
entity_property_sections, values use the control protocol's
property_json, and writes go through set_property_value with a property
target override, so the panel, MCP and the graph share one read/write
path. A list reaching an object row makes one entity per element. Each
graph action is one undo step; the canvas pans and zooms.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

src/scene/annotative.rs

@@ -9,13 +9,13 @@
 //! annotation-style update is requested; changing a style alone does not
 //! retroactively scale existing text.
 
-use acadrust::entities::{EntityCommon, EntityType};
-use acadrust::objects::{
+use codec::entities::{EntityCommon, EntityType};
+use codec::objects::{
     Dictionary, DimContext, DimSubtype, EmbeddedMTextContext, HatchLoopContext, HatchScaleContext,
     MTextAttributeContext, MTextContext, ObjectContextData, ObjectContextKind, ObjectType,
 };
-use acadrust::types::{Vector2, Vector3};
-use acadrust::{CadDocument, Handle};
+use codec::types::{Vector2, Vector3};
+use codec::{CadDocument, Handle};
 use std::borrow::Cow;
 
 /// Resolve a handle to a `Dictionary` object, if it is one.
@@ -97,8 +97,8 @@ pub fn set_entity_annotative(doc: &mut CadDocument, handle: Handle, want: bool)
 /// Derive the per-scale context payload for an entity from its current
 /// placement. Returns the concrete class name and the context kind, or `None`
 /// for entity types that do not carry a per-object annotation context.
-fn dimension_context_for(doc: &CadDocument, dimension: &acadrust::entities::Dimension) -> Option<DimContext> {
-    use acadrust::entities::Dimension;
+fn dimension_context_for(doc: &CadDocument, dimension: &codec::entities::Dimension) -> Option<DimContext> {
+    use codec::entities::Dimension;
 
     let subtype = match dimension {
         Dimension::Aligned(dim) => DimSubtype::Aligned {
@@ -156,7 +156,7 @@ fn dimension_context_for(doc: &CadDocument, dimension: &acadrust::entities::Dime
     })
 }
 
-fn mtext_context_for(m: &acadrust::entities::MText) -> MTextContext {
+fn mtext_context_for(m: &codec::entities::MText) -> MTextContext {
     MTextContext {
         attachment: m.attachment_point as i32,
         x_axis_dir: m
@@ -168,7 +168,7 @@ fn mtext_context_for(m: &acadrust::entities::MText) -> MTextContext {
         extents_width: m.extents_width,
         extents_height: m.extents_height,
         column_type: m.column_data.column_type as i32,
-        columns: (m.column_data.column_type != 0).then(|| acadrust::objects::MTextColumns {
+        columns: (m.column_data.column_type != 0).then(|| codec::objects::MTextColumns {
             num_heights: m.column_data.column_count,
             width: m.column_data.width,
             gutter: m.column_data.gutter,
@@ -184,7 +184,7 @@ fn attribute_context_for(
     alignment: Vector3,
     rotation: f64,
     horizontal_mode: i16,
-    embedded: Option<&acadrust::entities::MText>,
+    embedded: Option<&codec::entities::MText>,
     scale: Handle,
 ) -> MTextAttributeContext {
     MTextAttributeContext {
@@ -268,7 +268,7 @@ fn context_kind_for(
         )),
         EntityType::Leader(leader) => Some((
             "ACDB_LEADEROBJECTCONTEXTDATA_CLASS",
-            ObjectContextKind::Leader(acadrust::objects::LeaderContext {
+            ObjectContextKind::Leader(codec::objects::LeaderContext {
                 points: leader.vertices.clone(),
                 x_direction: leader.horizontal_direction,
                 annotation_enabled: !leader.annotation_handle.is_null(),
@@ -316,7 +316,7 @@ pub fn supports_annotation_context(entity: &EntityType) -> bool {
         | EntityType::Tolerance(_)
         | EntityType::Hatch(_) => true,
         EntityType::Dimension(dimension) => {
-            !matches!(dimension, acadrust::entities::Dimension::Arc(_))
+            !matches!(dimension, codec::entities::Dimension::Arc(_))
         }
         _ => false,
     }
@@ -334,7 +334,7 @@ fn register_context_class(doc: &mut CadDocument, dxf_name: &str) {
         "ACDB_FCFOBJECTCONTEXTDATA_CLASS" => "AcDbFcfObjectContextData",
         _ => return,
     };
-    use acadrust::classes::{DxfClass, ProxyFlags};
+    use codec::classes::{DxfClass, ProxyFlags};
     let proxy_flags = ProxyFlags(
         ProxyFlags::ERASE_ALLOWED.0
             | ProxyFlags::CLONING_ALLOWED.0
@@ -505,7 +505,7 @@ pub fn scale_handle_by_name(doc: &CadDocument, name: &str) -> Option<Handle> {
 
 pub fn ensure_scale_object(
     doc: &mut CadDocument,
-    source: &acadrust::objects::Scale,
+    source: &codec::objects::Scale,
 ) -> Handle {
     if let Some(handle) = scale_handle_by_name(doc, &source.name) {
         return handle;
@@ -775,8 +775,8 @@ pub fn effective_annotation_scale_for(
     }
 }
 
-fn text_horizontal(value: i16) -> acadrust::entities::TextHorizontalAlignment {
-    use acadrust::entities::TextHorizontalAlignment;
+fn text_horizontal(value: i16) -> codec::entities::TextHorizontalAlignment {
+    use codec::entities::TextHorizontalAlignment;
     match value {
         1 => TextHorizontalAlignment::Center,
         2 => TextHorizontalAlignment::Right,
@@ -787,8 +787,8 @@ fn text_horizontal(value: i16) -> acadrust::entities::TextHorizontalAlignment {
     }
 }
 
-fn mtext_attachment(value: i32) -> acadrust::entities::AttachmentPoint {
-    use acadrust::entities::AttachmentPoint;
+fn mtext_attachment(value: i32) -> codec::entities::AttachmentPoint {
+    use codec::entities::AttachmentPoint;
     match value {
         2 => AttachmentPoint::TopCenter,
         3 => AttachmentPoint::TopRight,
@@ -802,7 +802,7 @@ fn mtext_attachment(value: i32) -> acadrust::entities::AttachmentPoint {
     }
 }
 
-fn apply_mtext_context(entity: &mut acadrust::entities::MText, context: &MTextContext) {
+fn apply_mtext_context(entity: &mut codec::entities::MText, context: &MTextContext) {
     entity.attachment_point = mtext_attachment(context.attachment);
     entity.insertion_point = context.insertion;
     entity.rectangle_width = context.rect_width;
@@ -827,12 +827,12 @@ fn apply_mtext_context(entity: &mut acadrust::entities::MText, context: &MTextCo
 }
 
 fn apply_dimension_context(
-    dimension: &mut acadrust::entities::Dimension,
-    context: &acadrust::objects::DimContext,
+    dimension: &mut codec::entities::Dimension,
+    context: &codec::objects::DimContext,
     doc: &CadDocument,
 ) {
-    use acadrust::entities::Dimension;
-    use acadrust::objects::DimSubtype;
+    use codec::entities::Dimension;
+    use codec::objects::DimSubtype;
 
     {
         let base = dimension.base_mut();
@@ -907,9 +907,9 @@ fn apply_attribute_context(
     insertion_point: &mut Vector3,
     alignment_point: &mut Vector3,
     rotation: &mut f64,
-    horizontal_alignment: &mut acadrust::entities::HorizontalAlignment,
-    embedded_mtext: &mut Option<Box<acadrust::entities::MText>>,
-    context: &acadrust::objects::MTextAttributeContext,
+    horizontal_alignment: &mut codec::entities::HorizontalAlignment,
+    embedded_mtext: &mut Option<Box<codec::entities::MText>>,
+    context: &codec::objects::MTextAttributeContext,
 ) {
     insertion_point.x = context.insertion.x;
     insertion_point.y = context.insertion.y;
@@ -917,7 +917,7 @@ fn apply_attribute_context(
     alignment_point.y = context.alignment.y;
     *rotation = context.rotation;
     *horizontal_alignment =
-        acadrust::entities::HorizontalAlignment::from_value(context.horizontal_mode);
+        codec::entities::HorizontalAlignment::from_value(context.horizontal_mode);
     if context.enable_context {
         if let (Some(embedded), Some(mtext)) = (&context.context, embedded_mtext.as_mut()) {
             apply_mtext_context(mtext, &embedded.mtext);
@@ -925,7 +925,7 @@ fn apply_attribute_context(
     }
 }
 
-fn apply_hatch_context(hatch: &mut acadrust::entities::Hatch, context: &HatchScaleContext) {
+fn apply_hatch_context(hatch: &mut codec::entities::Hatch, context: &HatchScaleContext) {
     hatch.pattern.lines.clone_from(&context.pattern_lines);
     hatch.pattern_scale = context.pattern_scale;
     for line in &mut hatch.pattern.lines {
@@ -939,20 +939,20 @@ fn apply_hatch_context(hatch: &mut acadrust::entities::Hatch, context: &HatchSca
         .enumerate()
         .map(|(index, loop_data)| {
             let flags =
-                acadrust::entities::BoundaryPathFlags::from_bits(loop_data.loop_type as u32);
+                codec::entities::BoundaryPathFlags::from_bits(loop_data.loop_type as u32);
             let mut path = if loop_data.supports_context {
                 base_paths.get(index).cloned()
             } else {
                 loop_data.boundary.clone()
             }
-            .unwrap_or_else(|| acadrust::entities::BoundaryPath::with_flags(flags));
+            .unwrap_or_else(|| codec::entities::BoundaryPath::with_flags(flags));
             path.flags = flags;
             path
         })
         .collect();
 }
 
-fn sync_hatch_loops(loops: &mut Vec<HatchLoopContext>, paths: &[acadrust::entities::BoundaryPath]) {
+fn sync_hatch_loops(loops: &mut Vec<HatchLoopContext>, paths: &[codec::entities::BoundaryPath]) {
     let previous = std::mem::take(loops);
     *loops = paths
         .iter()
@@ -1081,7 +1081,7 @@ pub fn entity_for_annotation_context<'a>(
     Cow::Owned(placed)
 }
 
-fn sync_mtext_context(context: &mut MTextContext, entity: &acadrust::entities::MText) {
+fn sync_mtext_context(context: &mut MTextContext, entity: &codec::entities::MText) {
     context.attachment = entity.attachment_point as i32;
     context.x_axis_dir = entity.dwg_x_direction.unwrap_or_else(|| {
         Vector3::new(entity.rotation.cos(), entity.rotation.sin(), 0.0)
@@ -1097,7 +1097,7 @@ fn sync_mtext_context(context: &mut MTextContext, entity: &acadrust::entities::M
     } else {
         let columns = context
             .columns
-            .get_or_insert_with(|| acadrust::objects::MTextColumns {
+            .get_or_insert_with(|| codec::objects::MTextColumns {
                 num_heights: 0,
                 width: 0.0,
                 gutter: 0.0,
@@ -1115,12 +1115,12 @@ fn sync_mtext_context(context: &mut MTextContext, entity: &acadrust::entities::M
 }
 
 fn sync_dimension_context(
-    context: &mut acadrust::objects::DimContext,
-    dimension: &acadrust::entities::Dimension,
+    context: &mut codec::objects::DimContext,
+    dimension: &codec::entities::Dimension,
     block_handle: Option<Handle>,
 ) {
-    use acadrust::entities::Dimension;
-    use acadrust::objects::DimSubtype;
+    use codec::entities::Dimension;
+    use codec::objects::DimSubtype;
 
     let base = dimension.base();
     context.def_pt = Vector2::new(base.text_middle_point.x, base.text_middle_point.y);
@@ -1231,12 +1231,12 @@ pub fn sync_annotation_context_from_entity(
             },
         ) => {
             *horizontal_mode = match text.horizontal_alignment {
-                acadrust::entities::TextHorizontalAlignment::Left => 0,
-                acadrust::entities::TextHorizontalAlignment::Center => 1,
-                acadrust::entities::TextHorizontalAlignment::Right => 2,
-                acadrust::entities::TextHorizontalAlignment::Aligned => 3,
-                acadrust::entities::TextHorizontalAlignment::Middle => 4,
-                acadrust::entities::TextHorizontalAlignment::Fit => 5,
+                codec::entities::TextHorizontalAlignment::Left => 0,
+                codec::entities::TextHorizontalAlignment::Center => 1,
+                codec::entities::TextHorizontalAlignment::Right => 2,
+                codec::entities::TextHorizontalAlignment::Aligned => 3,
+                codec::entities::TextHorizontalAlignment::Middle => 4,
+                codec::entities::TextHorizontalAlignment::Fit => 5,
             };
             *rotation = text.rotation;
             *insertion = Vector2::new(text.insertion_point.x, text.insertion_point.y);
@@ -1534,7 +1534,7 @@ fn has_context_manager(doc: &CadDocument, common: &EntityCommon) -> bool {
 /// explicit style update, so it cannot retroactively change existing objects.
 pub fn mleader_is_annotative(
     doc: &CadDocument,
-    mleader: &acadrust::entities::MultiLeader,
+    mleader: &codec::entities::MultiLeader,
 ) -> bool {
     has_context_manager(doc, &mleader.common)
         || mleader.enable_annotation_scale
@@ -1566,10 +1566,10 @@ pub fn annotation_style_is_annotative(doc: &CadDocument, entity: &EntityType) ->
 }
 
 pub fn apply_mleader_style(
-    entity: &mut acadrust::entities::MultiLeader,
-    style: &acadrust::objects::MultiLeaderStyle,
+    entity: &mut codec::entities::MultiLeader,
+    style: &codec::objects::MultiLeaderStyle,
 ) {
-    use acadrust::entities::MultiLeaderPropertyOverrideFlags as F;
+    use codec::entities::MultiLeaderPropertyOverrideFlags as F;
 
     let flags = entity.property_override_flags;
     entity.style_handle = Some(style.handle);
@@ -1678,11 +1678,11 @@ pub fn apply_mleader_style(
     entity.context.block_content_scale = entity.block_scale;
     entity.enable_annotation_scale = style.is_annotative;
     match entity.content_type {
-        acadrust::entities::LeaderContentType::MText => {
+        codec::entities::LeaderContentType::MText => {
             entity.context.has_text_contents = true;
             entity.context.has_block_contents = false;
         }
-        acadrust::entities::LeaderContentType::Block => {
+        codec::entities::LeaderContentType::Block => {
             entity.context.has_text_contents = false;
             entity.context.has_block_contents = entity.block_content_handle.is_some();
             entity.context.block_content_location = entity.context.content_base_point;
@@ -1698,7 +1698,7 @@ pub fn apply_mleader_style(
         }
         root.text_attachment_direction = entity.text_attachment_direction;
         for line in &mut root.lines {
-            use acadrust::entities::LeaderLinePropertyOverrideFlags as F;
+            use codec::entities::LeaderLinePropertyOverrideFlags as F;
             if !line.override_flags.contains(F::PATH_TYPE) {
                 line.path_type = entity.path_type;
             }
@@ -1721,11 +1721,11 @@ pub fn apply_mleader_style(
     }
 }
 fn apply_mleader_style_at_display_scale(
-    entity: &mut acadrust::entities::MultiLeader,
-    style: &acadrust::objects::MultiLeaderStyle,
+    entity: &mut codec::entities::MultiLeader,
+    style: &codec::objects::MultiLeaderStyle,
     display_scale: f64,
 ) {
-    use acadrust::entities::MultiLeaderPropertyOverrideFlags as F;
+    use codec::entities::MultiLeaderPropertyOverrideFlags as F;
 
     let old_scale = entity.context.scale_factor.max(1.0e-12);
     let landing_gap = entity.context.landing_gap / old_scale;
@@ -1778,7 +1778,7 @@ fn apply_mleader_style_at_display_scale(
 pub fn apply_mleader_style_to_object(
     doc: &mut CadDocument,
     handle: Handle,
-    style: &acadrust::objects::MultiLeaderStyle,
+    style: &codec::objects::MultiLeaderStyle,
 ) -> bool {
     let Some(EntityType::MultiLeader(original)) =
         doc.get_entity(handle).cloned()
@@ -1893,7 +1893,7 @@ pub fn update_entity_from_annotation_style(
     enum StyleUpdate {
         Text { annotative: bool, height: f64 },
         Dimension { annotative: bool },
-        MultiLeader(acadrust::objects::MultiLeaderStyle),
+        MultiLeader(codec::objects::MultiLeaderStyle),
         ContextOnly,
     }
 
@@ -2004,7 +2004,7 @@ pub fn is_annotative(doc: &CadDocument, entity: &EntityType) -> bool {
         .get_record("AcadAnnotative")
         .and_then(|record| {
             record.values.iter().filter_map(|value| match value {
-                acadrust::xdata::XDataValue::Integer16(value) => Some(*value),
+                codec::xdata::XDataValue::Integer16(value) => Some(*value),
                 _ => None,
             }).last()
         })