cad-editor/src/scene/annotative.rs

1764 lines
67 KiB
Rust

//! Shared annotative-object detection + annotation-scale resolution.
//!
//! Both the Properties panel (Annotative row / applied scale name) and the
//! tessellation bake (which scales annotative content by the current annotation
//! scale) must agree on *which* entities are annotative — so that logic lives
//! here, once. An entity is annotative if it carries a per-object annotation
//! context, legacy annotative XDATA, or an entity-level annotative flag. Text
//! style state is consulted while creating an object and when an explicit
//! annotation-style update is requested; changing a style alone does not
//! retroactively scale existing text.
use acadrust::entities::{EntityCommon, EntityType};
use acadrust::objects::{
Dictionary, DimContext, DimSubtype, EmbeddedMTextContext, HatchScaleContext,
MTextAttributeContext, MTextContext, ObjectContextData, ObjectContextKind, ObjectType,
};
use acadrust::types::{Vector2, Vector3};
use acadrust::{CadDocument, Handle};
use std::borrow::Cow;
/// Resolve a handle to a `Dictionary` object, if it is one.
pub fn as_dict(doc: &CadDocument, handle: Handle) -> Option<&Dictionary> {
match doc.objects.get(&handle) {
Some(ObjectType::Dictionary(d)) => Some(d),
_ => None,
}
}
/// Resolve the drawing's root named-objects dictionary, creating one if the
/// file has none reachable.
///
/// The canonical pointer is `header.named_objects_dict_handle`, but DWGs
/// written by some programs leave it dangling — pointing at a handle that never
/// loaded, or at a non-dictionary — while the real named-object sub-dictionaries
/// (`ACAD_LAYOUT`, `ACAD_SCALELIST`, …) are instead owned by an unrelated handle
/// that is not a dictionary. When the pointer can't be resolved we adopt any
/// top-level (`owner == NULL`) dictionary as the root; failing that we synthesise
/// a fresh, empty root so that *registering* a new named-object entry (a page
/// setup, an annotation scale, the `CTAB` variable) actually persists instead of
/// silently no-opping against a missing dictionary.
///
/// Idempotent: the resolved or created handle is written back to the header, so
/// later calls return the same dictionary rather than minting another root. On a
/// well-formed drawing this returns the existing root untouched.
pub fn root_named_dict_handle(doc: &mut CadDocument) -> Handle {
let h = doc.header.named_objects_dict_handle;
if matches!(doc.objects.get(&h), Some(ObjectType::Dictionary(_))) {
return h;
}
// A top-level dictionary is already present (the standard root shape) — adopt
// the richest one (matching the DWG writer's own root heuristic) and repair
// the stale header pointer.
if let Some(root) = doc
.objects
.iter()
.filter_map(|(k, o)| match o {
ObjectType::Dictionary(d) if d.owner.is_null() => Some((*k, d.entries.len())),
_ => None,
})
.max_by_key(|&(_, n)| n)
.map(|(k, _)| k)
{
doc.header.named_objects_dict_handle = root;
return root;
}
// Nothing reachable — build a fresh, empty root named-objects dictionary.
let nh = doc.allocate_handle();
let mut d = Dictionary::new();
d.handle = nh;
d.owner = Handle::NULL;
doc.objects.insert(nh, ObjectType::Dictionary(d));
doc.header.named_objects_dict_handle = nh;
nh
}
/// Set the per-object annotative flag on the entity types that carry one
/// (MTEXT, MULTILEADER, ATTRIB and ATTDEF). Turning it off also strips the per-object annotation
/// context and legacy markers via [`clear_annotation_context`] so the object
/// stops resolving annotative; turning it on leaves the base geometry as the
/// single (implicit, current-scale) representation. TEXT uses a context rather
/// than a native flag; other entity types are not toggled here.
pub fn set_entity_annotative(doc: &mut CadDocument, handle: Handle, want: bool) {
if let Some(e) = doc.get_entity_mut(handle) {
match e {
EntityType::MText(t) => t.is_annotative = want,
EntityType::MultiLeader(m) => m.enable_annotation_scale = want,
EntityType::AttributeEntity(attribute) => attribute.flags.annotative = want,
EntityType::AttributeDefinition(attribute) => attribute.flags.annotative = want,
_ => {}
}
}
if !want {
clear_annotation_context(doc, handle);
}
}
/// 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;
let subtype = match dimension {
Dimension::Aligned(dim) => DimSubtype::Aligned {
dimline_pt: dim.definition_point,
},
Dimension::Linear(dim) => DimSubtype::Aligned {
dimline_pt: dim.definition_point,
},
Dimension::Angular2Ln(dim) => DimSubtype::Angular {
arc_pt: dim.dimension_arc,
},
Dimension::Angular3Pt(dim) => DimSubtype::Angular {
arc_pt: dim.definition_point,
},
Dimension::Diameter(dim) => DimSubtype::Diametric {
first_arc_pt: dim.angle_vertex,
def_pt: dim.definition_point,
},
Dimension::Radius(dim) => DimSubtype::Radial {
first_arc_pt: dim.definition_point,
},
Dimension::LargeRadial(dim) => DimSubtype::RadialLarge {
ovr_center: dim.override_center,
jog_point: dim.jog_point,
},
Dimension::Ordinate(dim) => DimSubtype::Ordinate {
feature_location_pt: dim.feature_location,
leader_endpt: dim.leader_endpoint,
},
Dimension::Arc(_) => return None,
};
let base = dimension.base();
let block = doc
.block_records
.iter()
.find(|record| record.name.eq_ignore_ascii_case(&base.block_name))
.map(|record| record.handle)
.unwrap_or(Handle::NULL);
Some(DimContext {
def_pt: Vector2::new(base.text_middle_point.x, base.text_middle_point.y),
is_def_textloc: base.text_user_positioned,
text_rotation: base.text_rotation,
block,
b293: false,
dimtofl: false,
dimosxd: false,
dimatfit: false,
dimtix: false,
dimtmove: false,
override_code: 0,
has_arrow2: false,
flip_arrow2: base.flip_arrow2,
flip_arrow1: base.flip_arrow1,
subtype,
})
}
fn mtext_context_for(m: &acadrust::entities::MText) -> MTextContext {
MTextContext {
attachment: m.attachment_point as i32,
x_axis_dir: m
.dwg_x_direction
.unwrap_or_else(|| Vector3::new(m.rotation.cos(), m.rotation.sin(), 0.0)),
insertion: m.insertion_point,
rect_width: m.rectangle_width,
rect_height: m.rectangle_height.unwrap_or(0.0),
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 {
num_heights: m.column_data.column_count,
width: m.column_data.width,
gutter: m.column_data.gutter,
auto_height: m.column_data.auto_height,
flow_reversed: m.column_data.flow_reversed,
heights: m.column_data.heights.clone(),
}),
}
}
fn attribute_context_for(
insertion: Vector3,
alignment: Vector3,
rotation: f64,
horizontal_mode: i16,
embedded: Option<&acadrust::entities::MText>,
scale: Handle,
) -> MTextAttributeContext {
MTextAttributeContext {
horizontal_mode,
rotation,
insertion: Vector2::new(insertion.x, insertion.y),
alignment: Vector2::new(alignment.x, alignment.y),
enable_context: embedded.is_some(),
context: embedded.map(|mtext| EmbeddedMTextContext {
owner_handle: Handle::NULL,
reactors: Vec::new(),
xdictionary_handle: None,
has_binary_data: false,
class_version: 3,
is_default: false,
scale,
mtext: mtext_context_for(mtext),
}),
}
}
fn context_kind_for(
doc: &CadDocument,
entity: &EntityType,
scale: Handle,
) -> Option<(&'static str, ObjectContextKind)> {
match entity {
EntityType::Insert(ins) => Some((
"ACDB_BLKREFOBJECTCONTEXTDATA_CLASS",
ObjectContextKind::BlkRef {
rotation: ins.rotation,
insertion: ins.insert_point,
scale_factor: Vector3::new(ins.x_scale(), ins.y_scale(), ins.z_scale()),
},
)),
EntityType::Text(t) => Some((
"ACDB_TEXTOBJECTCONTEXTDATA_CLASS",
ObjectContextKind::Text {
horizontal_mode: t.horizontal_alignment as i16,
rotation: t.rotation,
insertion: Vector2::new(t.insertion_point.x, t.insertion_point.y),
alignment: t
.alignment_point
.map(|p| Vector2::new(p.x, p.y))
.unwrap_or(Vector2::new(0.0, 0.0)),
},
)),
EntityType::MText(m) => Some((
"ACDB_MTEXTOBJECTCONTEXTDATA_CLASS",
ObjectContextKind::MText(mtext_context_for(m)),
)),
EntityType::Dimension(dimension) => {
let context = dimension_context_for(doc, dimension)?;
Some((context.subtype.class_name(), ObjectContextKind::Dim(context)))
}
EntityType::MultiLeader(mleader) => Some((
"ACDB_MLEADEROBJECTCONTEXTDATA_CLASS",
ObjectContextKind::MLeader(mleader.context.clone()),
)),
EntityType::AttributeEntity(attribute) => Some((
"ACDB_MTEXTATTRIBUTEOBJECTCONTEXTDATA_CLASS",
ObjectContextKind::MTextAttribute(attribute_context_for(
attribute.insertion_point,
attribute.alignment_point,
attribute.rotation,
attribute.horizontal_alignment.to_value(),
attribute.embedded_mtext.as_deref(),
scale,
)),
)),
EntityType::AttributeDefinition(attribute) => Some((
"ACDB_MTEXTATTRIBUTEOBJECTCONTEXTDATA_CLASS",
ObjectContextKind::MTextAttribute(attribute_context_for(
attribute.insertion_point,
attribute.alignment_point,
attribute.rotation,
attribute.horizontal_alignment.to_value(),
attribute.embedded_mtext.as_deref(),
scale,
)),
)),
EntityType::Leader(leader) => Some((
"ACDB_LEADEROBJECTCONTEXTDATA_CLASS",
ObjectContextKind::Leader(acadrust::objects::LeaderContext {
points: leader.vertices.clone(),
x_direction: leader.horizontal_direction,
annotation_enabled: !leader.annotation_handle.is_null(),
insertion_offset: Vector3::ZERO,
endpoint_projection: leader.annotation_offset,
}),
)),
EntityType::Tolerance(tolerance) => Some((
"ACDB_FCFOBJECTCONTEXTDATA_CLASS",
ObjectContextKind::Fcf {
location: tolerance.insertion_point,
horizontal_direction: tolerance.direction,
},
)),
EntityType::Hatch(hatch) => Some((
"ACDB_HATCHSCALECONTEXTDATA_CLASS",
ObjectContextKind::HatchScale(HatchScaleContext {
pattern_lines: hatch.pattern.lines.clone(),
pattern_scale: hatch.pattern_scale,
pattern_base: Vector3::ZERO,
loop_types: hatch
.paths
.iter()
.map(|path| path.flags.bits() as i32)
.collect(),
supports_context: true,
}),
)),
_ => None,
}
}
pub fn supports_annotation_context(entity: &EntityType) -> bool {
match entity {
EntityType::Insert(_)
| EntityType::Text(_)
| EntityType::MText(_)
| EntityType::MultiLeader(_)
| EntityType::AttributeEntity(_)
| EntityType::AttributeDefinition(_)
| EntityType::Leader(_)
| EntityType::Tolerance(_)
| EntityType::Hatch(_) => true,
EntityType::Dimension(dimension) => {
!matches!(dimension, acadrust::entities::Dimension::Arc(_))
}
_ => false,
}
}
fn register_context_class(doc: &mut CadDocument, dxf_name: &str) {
doc.register_object_context_class(dxf_name);
if doc.classes.get_by_name(dxf_name).is_some() {
return;
}
let cpp_name = match dxf_name {
"ACDB_MLEADEROBJECTCONTEXTDATA_CLASS" => "AcDbMLeaderObjectContextData",
"ACDB_MTEXTATTRIBUTEOBJECTCONTEXTDATA_CLASS" => "AcDbMTextAttributeObjectContextData",
"ACDB_LEADEROBJECTCONTEXTDATA_CLASS" => "AcDbLeaderObjectContextData",
"ACDB_FCFOBJECTCONTEXTDATA_CLASS" => "AcDbFcfObjectContextData",
_ => return,
};
use acadrust::classes::{DxfClass, ProxyFlags};
let proxy_flags = ProxyFlags(
ProxyFlags::ERASE_ALLOWED.0
| ProxyFlags::CLONING_ALLOWED.0
| ProxyFlags::DISABLES_PROXY_WARNING_DIALOG.0,
);
doc.classes.add_or_update(DxfClass {
dxf_name: dxf_name.to_string(),
cpp_class_name: cpp_name.to_string(),
application_name: "ObjectDBX Classes".to_string(),
proxy_flags,
instance_count: 0,
was_zombie: false,
is_an_entity: false,
class_number: 0,
item_class_id: 0x1F3,
dwg_version: 0,
maintenance_version: 0,
unknown1: 0,
unknown2: 0,
});
}
/// Give an entity a per-object annotation context for `scale_handle`,
/// synthesizing the extension-dictionary chain it hangs from when absent:
///
/// ```text
/// entity xdict → "AcDbContextDataManager" → "ACDB_ANNOTATIONSCALES" → "*An" → leaf
/// ```
///
/// The leaf is an [`ObjectContextData`] whose placement is copied from the
/// entity's current geometry and whose `340` handle references `scale_handle`
/// (an `AcDbScale` in `ACAD_SCALELIST`). Idempotent: a leaf for that scale is
/// not duplicated. Exactly one leaf per object is marked `is_default` (the
/// first one created — the native representation). Returns `false` for entity
/// kinds that carry no per-object context (their annotative-ness is style-driven).
pub fn create_annotation_context(
doc: &mut CadDocument,
entity_handle: Handle,
scale_handle: Handle,
) -> bool {
let Some((class_name, kind)) = doc
.get_entity(entity_handle)
.and_then(|entity| context_kind_for(doc, entity, scale_handle))
else {
return false;
};
// The writer emits a 500+ class number only for registered classes.
register_context_class(doc, class_name);
// Extension dictionary (hard-owns its entries; 280 = 1). Create it if the
// entity has none, and point the entity at it.
let xdict_h = match doc
.get_entity(entity_handle)
.and_then(|e| e.common().xdictionary_handle)
{
Some(h) if as_dict(doc, h).is_some() => h,
_ => {
let h = doc.allocate_handle();
let mut d = Dictionary::new();
d.handle = h;
d.owner = entity_handle;
d.hard_owner = true;
doc.objects.insert(h, ObjectType::Dictionary(d));
if let Some(e) = doc.get_entity_mut(entity_handle) {
e.common_mut().xdictionary_handle = Some(h);
}
h
}
};
let mgr_h = get_or_create_child_dict(doc, xdict_h, "AcDbContextDataManager");
let coll_h = get_or_create_child_dict(doc, mgr_h, "ACDB_ANNOTATIONSCALES");
// Idempotent: if a leaf already applies to this scale, keep it.
let existing = as_dict(doc, coll_h)
.map(|d| {
d.entries.iter().any(|(_, lh)| {
matches!(
doc.objects.get(lh),
Some(ObjectType::ObjectContextData(c)) if c.scale == scale_handle
)
})
})
.unwrap_or(false);
if existing {
return true;
}
// The first representation created is the default (native) one.
let is_default = as_dict(doc, coll_h).map(|d| d.entries.is_empty()).unwrap_or(true);
let n = as_dict(doc, coll_h).map(|d| d.entries.len()).unwrap_or(0) + 1;
let key = format!("*A{n}");
let leaf_h = doc.allocate_handle();
let leaf = ObjectContextData {
handle: leaf_h,
owner_handle: coll_h,
reactors: vec![coll_h],
xdictionary_handle: None,
class_version: 3,
is_default,
scale: scale_handle,
kind,
};
doc.objects
.insert(leaf_h, ObjectType::ObjectContextData(leaf));
if let Some(ObjectType::Dictionary(coll)) = doc.objects.get_mut(&coll_h) {
coll.add_entry(key, leaf_h);
}
true
}
/// True when `common` belongs to an annotative object whose per-object scale
/// contexts are *all* bound to scales other than the current one — an
/// off-scale representation that must stay hidden. A drawing may materialise
/// each annotation scale as its own object (e.g. a block insert per scale on a
/// "0 @ <scale>" layer); only the current scale's representation should draw.
///
/// False for non-annotative objects (no per-object context — the vast
/// majority) and for objects whose contexts include the current scale. Gated
/// on an extension dictionary so non-annotative entities skip the lookup.
pub fn annotative_offscale_for(
doc: &CadDocument,
common: &EntityCommon,
scale_handle: Option<Handle>,
all_visible: bool,
) -> bool {
if all_visible {
return false;
}
if !common
.xdictionary_handle
.map(|h| !h.is_null())
.unwrap_or(false)
{
return false;
}
let scales = object_scale_memberships(doc, common.handle);
if scales.is_empty() {
return false;
}
match scale_handle {
Some(handle) => !scales.iter().any(|(_, member)| *member == handle),
None => !scales.iter().any(|(name, _)| {
name.eq_ignore_ascii_case(&doc.header.current_annotation_scale)
}),
}
}
pub(crate) fn annotation_scale_handles_for_entity(
doc: &CadDocument,
entity_handle: Handle,
) -> Vec<Handle> {
object_scale_memberships(doc, entity_handle)
.into_iter()
.map(|(_, scale_handle)| scale_handle)
.collect()
}
pub fn scale_handle_by_name(doc: &CadDocument, name: &str) -> Option<Handle> {
doc.objects.iter().find_map(|(handle, object)| match object {
ObjectType::Scale(scale)
if !scale.is_temporary && scale.name.eq_ignore_ascii_case(name) =>
{
Some(*handle)
}
_ => None,
})
}
pub fn ensure_scale_object(
doc: &mut CadDocument,
source: &acadrust::objects::Scale,
) -> Handle {
if let Some(handle) = scale_handle_by_name(doc, &source.name) {
return handle;
}
let root = root_named_dict_handle(doc);
let scale_dictionary = as_dict(doc, root)
.and_then(|dictionary| dictionary.get("ACAD_SCALELIST"))
.filter(|handle| matches!(doc.objects.get(handle), Some(ObjectType::Dictionary(_))))
.unwrap_or_else(|| {
let handle = doc.allocate_handle();
let mut dictionary = Dictionary::new();
dictionary.handle = handle;
dictionary.owner = root;
doc.objects
.insert(handle, ObjectType::Dictionary(dictionary));
if let Some(ObjectType::Dictionary(root_dictionary)) = doc.objects.get_mut(&root) {
root_dictionary.add_entry("ACAD_SCALELIST", handle);
}
handle
});
let handle = doc.allocate_handle();
let mut scale = source.clone();
scale.handle = handle;
scale.owner_handle = scale_dictionary;
scale.is_temporary = false;
doc.objects.insert(handle, ObjectType::Scale(scale));
if let Some(ObjectType::Dictionary(dictionary)) = doc.objects.get_mut(&scale_dictionary) {
dictionary.add_entry(source.name.clone(), handle);
}
handle
}
/// The annotation scales an object currently carries a per-object context for,
/// as `(scale name, scale handle)` pairs (one per representation). Empty when
/// the object has no per-object context chain.
pub fn object_scale_memberships(doc: &CadDocument, entity: Handle) -> Vec<(String, Handle)> {
let mut out = Vec::new();
let Some(coll_h) = annotation_scales_dict(doc, entity) else {
return out;
};
if let Some(coll) = as_dict(doc, coll_h) {
for (_, lh) in &coll.entries {
if let Some(ObjectType::ObjectContextData(leaf)) = doc.objects.get(lh) {
if let Some(ObjectType::Scale(s)) = doc.objects.get(&leaf.scale) {
out.push((s.name.clone(), leaf.scale));
}
}
}
}
out
}
/// Remove the per-object context representation that applies to `scale_handle`,
/// keeping the object's other representations. When that was the object's last
/// representation the whole context chain (and the annotative markers) are torn
/// down via [`clear_annotation_context`] so the object becomes non-annotative.
/// Returns `true` if a representation was removed.
pub fn remove_annotation_context_for_scale(
doc: &mut CadDocument,
entity: Handle,
scale_handle: Handle,
) -> bool {
let Some(coll_h) = annotation_scales_dict(doc, entity) else {
return false;
};
// Find the leaf that applies to this scale.
let leaf = as_dict(doc, coll_h).and_then(|c| {
c.entries.iter().find_map(|(_, lh)| {
matches!(
doc.objects.get(lh),
Some(ObjectType::ObjectContextData(o)) if o.scale == scale_handle
)
.then_some(*lh)
})
});
let Some(leaf_h) = leaf else {
return false;
};
// If this is the object's only representation, fully de-annotate it (drop the
// whole chain AND the native flag, like the Yes→No toggle) so it stops
// resolving annotative; otherwise drop just this leaf.
let last = as_dict(doc, coll_h).map(|c| c.entries.len() <= 1).unwrap_or(true);
if last {
set_entity_annotative(doc, entity, false);
return true;
}
doc.objects.remove(&leaf_h);
if let Some(ObjectType::Dictionary(coll)) = doc.objects.get_mut(&coll_h) {
coll.entries.retain(|(_, h)| *h != leaf_h);
}
true
}
/// Resolve an entity's `ACDB_ANNOTATIONSCALES` collection dictionary handle, if
/// its context chain exists.
fn annotation_scales_dict(doc: &CadDocument, entity: Handle) -> Option<Handle> {
let xd = doc.get_entity(entity).and_then(|e| e.common().xdictionary_handle)?;
let mgr = as_dict(doc, xd).and_then(|d| d.get("AcDbContextDataManager"))?;
as_dict(doc, mgr).and_then(|d| d.get("ACDB_ANNOTATIONSCALES"))
}
/// Resolve the representation leaf used by the drawing's current annotation
/// scale. Broken scale handles are ignored. When the current named scale is
/// absent, the leaf explicitly marked as the native/default representation is
/// preferred, followed by the first valid leaf.
pub fn active_object_context_for_scale(
doc: &CadDocument,
entity: Handle,
scale_handle: Option<Handle>,
) -> Option<&ObjectContextData> {
let coll_h = annotation_scales_dict(doc, entity)?;
let coll = as_dict(doc, coll_h)?;
let mut default = None;
let mut first = None;
for (_, leaf_h) in &coll.entries {
let Some(ObjectType::ObjectContextData(leaf)) = doc.objects.get(leaf_h) else {
continue;
};
first.get_or_insert(leaf);
if leaf.is_default {
default = Some(leaf);
}
if let Some(target) = scale_handle {
if leaf.scale == target {
return Some(leaf);
}
} else if let Some(ObjectType::Scale(scale)) = doc.objects.get(&leaf.scale) {
if scale
.name
.eq_ignore_ascii_case(&doc.header.current_annotation_scale)
{
return Some(leaf);
}
}
}
default.or(first)
}
pub fn effective_annotation_scale_for(
doc: &CadDocument,
entity: &EntityType,
fallback: f32,
scale_handle: Option<Handle>,
) -> f32 {
let context_annotative = is_annotative(doc, entity);
let style_annotative = annotation_style_is_annotative(doc, entity);
// An annotative object is scaled at the scales it has a representation
// for. Text is the case where the style alone proves nothing: a text style
// can be turned annotative long after text was drawn in it, and that text
// keeps its stored height until it is explicitly converted — which is what
// `is_annotative` already says by ignoring the style for TEXT. Scaling on
// the style regardless contradicted it, and a drawing whose text sits on a
// style someone flagged annotative, with no object contexts anywhere, came
// out at the whole annotation scale too large.
//
// A dimension, leader, tolerance or table is different: there the style is
// the standard signal and still counts on its own.
let text_like = matches!(
entity,
EntityType::Text(_)
| EntityType::MText(_)
| EntityType::AttributeEntity(_)
| EntityType::AttributeDefinition(_)
);
if !context_annotative && (text_like || !style_annotative) {
return 1.0;
}
if matches!(
entity,
EntityType::Dimension(_)
| EntityType::Leader(_)
| EntityType::Tolerance(_)
| EntityType::Table(_)
) {
return fallback;
}
// Unlike MTEXT / DIMENSION contexts, an MLEADER context carries its
// already-scaled text height and overall scale factor. Keep the text
// height as stored; make `ml.scale_factor * anno_scale` resolve to the
// active context's scale factor for arrows, doglegs, and fallback text.
if let EntityType::MultiLeader(mleader) = entity {
let Some(active) =
active_object_context_for_scale(doc, entity.common().handle, scale_handle)
else {
return fallback;
};
let ObjectContextKind::MLeader(context) = &active.kind else {
return fallback;
};
let base = mleader.scale_factor;
if base.abs() <= 1.0e-12 {
return fallback;
}
let relative = context.scale_factor / base;
return if relative.is_finite() && relative > 0.0 {
relative as f32
} else {
fallback
};
}
let Some(coll_h) = annotation_scales_dict(doc, entity.common().handle) else {
return fallback;
};
let Some(coll) = as_dict(doc, coll_h) else {
return fallback;
};
let active = active_object_context_for_scale(doc, entity.common().handle, scale_handle);
let native = coll.entries.iter().find_map(|(_, leaf_h)| {
match doc.objects.get(leaf_h) {
Some(ObjectType::ObjectContextData(leaf)) if leaf.is_default => Some(leaf),
_ => None,
}
});
let (Some(active), Some(native)) = (active, native) else {
return fallback;
};
let (Some(ObjectType::Scale(active_scale)), Some(ObjectType::Scale(native_scale))) = (
doc.objects.get(&active.scale),
doc.objects.get(&native.scale),
) else {
return fallback;
};
let native_factor = native_scale.inverse_factor();
if native_factor.abs() <= 1.0e-12 {
return fallback;
}
let relative = active_scale.inverse_factor() / native_factor;
if relative.is_finite() && relative > 0.0 {
relative as f32
} else {
fallback
}
}
fn text_horizontal(value: i16) -> acadrust::entities::TextHorizontalAlignment {
use acadrust::entities::TextHorizontalAlignment;
match value {
1 => TextHorizontalAlignment::Center,
2 => TextHorizontalAlignment::Right,
3 => TextHorizontalAlignment::Aligned,
4 => TextHorizontalAlignment::Middle,
5 => TextHorizontalAlignment::Fit,
_ => TextHorizontalAlignment::Left,
}
}
fn mtext_attachment(value: i32) -> acadrust::entities::AttachmentPoint {
use acadrust::entities::AttachmentPoint;
match value {
2 => AttachmentPoint::TopCenter,
3 => AttachmentPoint::TopRight,
4 => AttachmentPoint::MiddleLeft,
5 => AttachmentPoint::MiddleCenter,
6 => AttachmentPoint::MiddleRight,
7 => AttachmentPoint::BottomLeft,
8 => AttachmentPoint::BottomCenter,
9 => AttachmentPoint::BottomRight,
_ => AttachmentPoint::TopLeft,
}
}
fn apply_mtext_context(entity: &mut acadrust::entities::MText, context: &MTextContext) {
entity.attachment_point = mtext_attachment(context.attachment);
entity.insertion_point = context.insertion;
entity.rectangle_width = context.rect_width;
entity.rectangle_height = (context.rect_height > 0.0).then_some(context.rect_height);
entity.extents_width = context.extents_width;
entity.extents_height = context.extents_height;
entity.rotation = context.x_axis_dir.y.atan2(context.x_axis_dir.x);
entity.dwg_x_direction = Some(context.x_axis_dir);
if let Some(columns) = &context.columns {
entity.column_data.column_type = context.column_type as i16;
entity.column_data.column_count = columns.num_heights;
entity.column_data.width = columns.width;
entity.column_data.gutter = columns.gutter;
entity.column_data.auto_height = columns.auto_height;
entity.column_data.flow_reversed = columns.flow_reversed;
entity.column_data.heights.clone_from(&columns.heights);
} else {
entity.column_data.column_type = context.column_type as i16;
entity.column_data.column_count = 0;
entity.column_data.heights.clear();
}
}
fn apply_dimension_context(
dimension: &mut acadrust::entities::Dimension,
context: &acadrust::objects::DimContext,
doc: &CadDocument,
) {
use acadrust::entities::Dimension;
use acadrust::objects::DimSubtype;
{
let base = dimension.base_mut();
base.text_middle_point.x = context.def_pt.x;
base.text_middle_point.y = context.def_pt.y;
base.text_rotation = context.text_rotation;
base.text_user_positioned = context.is_def_textloc;
base.flip_arrow1 = context.flip_arrow1;
base.flip_arrow2 = context.flip_arrow2;
if let Some(record) = doc.block_records.iter().find(|r| r.handle == context.block) {
base.block_name.clone_from(&record.name);
}
}
match (&context.subtype, dimension) {
(DimSubtype::Aligned { dimline_pt }, Dimension::Aligned(dim)) => {
dim.definition_point = *dimline_pt;
dim.base.definition_point = *dimline_pt;
}
(DimSubtype::Aligned { dimline_pt }, Dimension::Linear(dim)) => {
dim.definition_point = *dimline_pt;
dim.base.definition_point = *dimline_pt;
}
(DimSubtype::Angular { arc_pt }, Dimension::Angular2Ln(dim)) => {
dim.dimension_arc = *arc_pt;
dim.base.definition_point = *arc_pt;
}
(DimSubtype::Angular { arc_pt }, Dimension::Angular3Pt(dim)) => {
dim.definition_point = *arc_pt;
dim.base.definition_point = *arc_pt;
}
(
DimSubtype::Diametric {
first_arc_pt,
def_pt,
},
Dimension::Diameter(dim),
) => {
dim.angle_vertex = *first_arc_pt;
dim.definition_point = *def_pt;
dim.base.definition_point = *def_pt;
}
(DimSubtype::Radial { first_arc_pt }, Dimension::Radius(dim)) => {
dim.definition_point = *first_arc_pt;
dim.base.definition_point = *first_arc_pt;
}
(
DimSubtype::RadialLarge {
ovr_center,
jog_point,
},
Dimension::LargeRadial(dim),
) => {
dim.override_center = *ovr_center;
dim.jog_point = *jog_point;
}
(
DimSubtype::Ordinate {
feature_location_pt,
leader_endpt,
},
Dimension::Ordinate(dim),
) => {
dim.feature_location = *feature_location_pt;
dim.leader_endpoint = *leader_endpt;
}
_ => {}
}
}
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,
) {
insertion_point.x = context.insertion.x;
insertion_point.y = context.insertion.y;
alignment_point.x = context.alignment.x;
alignment_point.y = context.alignment.y;
*rotation = context.rotation;
*horizontal_alignment =
acadrust::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);
}
}
}
fn apply_hatch_context(hatch: &mut acadrust::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 {
line.base_point.x += context.pattern_base.x;
line.base_point.y += context.pattern_base.y;
}
for (path, bits) in hatch.paths.iter_mut().zip(&context.loop_types) {
path.flags = acadrust::entities::BoundaryPathFlags::from_bits(*bits as u32);
}
}
pub fn entity_for_annotation_context<'a>(
doc: &'a CadDocument,
entity: &'a EntityType,
scale_handle: Option<Handle>,
) -> Cow<'a, EntityType> {
let Some(context) =
active_object_context_for_scale(doc, entity.common().handle, scale_handle)
else {
return Cow::Borrowed(entity);
};
let mut placed = entity.clone();
match (&context.kind, &mut placed) {
(
ObjectContextKind::BlkRef {
rotation,
insertion,
scale_factor,
},
EntityType::Insert(insert),
) => {
insert.rotation = *rotation;
insert.insert_point = *insertion;
insert.set_x_scale(scale_factor.x);
insert.set_y_scale(scale_factor.y);
insert.set_z_scale(scale_factor.z);
}
(
ObjectContextKind::Text {
horizontal_mode,
rotation,
insertion,
alignment,
},
EntityType::Text(text),
) => {
text.horizontal_alignment = text_horizontal(*horizontal_mode);
text.rotation = *rotation;
text.insertion_point.x = insertion.x;
text.insertion_point.y = insertion.y;
let point = text.alignment_point.get_or_insert(Vector3::ZERO);
point.x = alignment.x;
point.y = alignment.y;
}
(ObjectContextKind::MText(value), EntityType::MText(mtext)) => {
apply_mtext_context(mtext, value);
}
(ObjectContextKind::Dim(value), EntityType::Dimension(dimension)) => {
apply_dimension_context(dimension, value, doc);
}
(ObjectContextKind::MLeader(value), EntityType::MultiLeader(mleader)) => {
mleader.context.clone_from(value);
}
(
ObjectContextKind::MTextAttribute(value),
EntityType::AttributeEntity(attribute),
) => {
apply_attribute_context(
&mut attribute.insertion_point,
&mut attribute.alignment_point,
&mut attribute.rotation,
&mut attribute.horizontal_alignment,
&mut attribute.embedded_mtext,
value,
);
}
(
ObjectContextKind::MTextAttribute(value),
EntityType::AttributeDefinition(attribute),
) => {
apply_attribute_context(
&mut attribute.insertion_point,
&mut attribute.alignment_point,
&mut attribute.rotation,
&mut attribute.horizontal_alignment,
&mut attribute.embedded_mtext,
value,
);
}
(ObjectContextKind::Leader(value), EntityType::Leader(leader)) => {
leader.vertices = value
.points
.iter()
.map(|point| *point + value.insertion_offset)
.collect();
leader.horizontal_direction = value.x_direction;
leader.annotation_offset = value.endpoint_projection;
}
(
ObjectContextKind::Fcf {
location,
horizontal_direction,
},
EntityType::Tolerance(tolerance),
) => {
tolerance.insertion_point = *location;
tolerance.direction = *horizontal_direction;
}
(ObjectContextKind::HatchScale(value), EntityType::Hatch(hatch)) => {
apply_hatch_context(hatch, value);
}
(ObjectContextKind::HatchView(value), EntityType::Hatch(hatch)) => {
apply_hatch_context(hatch, &value.hatch);
hatch.normal = value.view_normal;
hatch.pattern_angle += value.view_rotation;
}
_ => {}
}
Cow::Owned(placed)
}
fn sync_mtext_context(context: &mut MTextContext, entity: &acadrust::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)
});
context.insertion = entity.insertion_point;
context.rect_width = entity.rectangle_width;
context.rect_height = entity.rectangle_height.unwrap_or(0.0);
context.extents_width = entity.extents_width;
context.extents_height = entity.extents_height;
context.column_type = entity.column_data.column_type as i32;
if context.column_type == 0 {
context.columns = None;
} else {
let columns = context
.columns
.get_or_insert_with(|| acadrust::objects::MTextColumns {
num_heights: 0,
width: 0.0,
gutter: 0.0,
auto_height: false,
flow_reversed: false,
heights: Vec::new(),
});
columns.num_heights = entity.column_data.column_count;
columns.width = entity.column_data.width;
columns.gutter = entity.column_data.gutter;
columns.auto_height = entity.column_data.auto_height;
columns.flow_reversed = entity.column_data.flow_reversed;
columns.heights.clone_from(&entity.column_data.heights);
}
}
fn sync_dimension_context(
context: &mut acadrust::objects::DimContext,
dimension: &acadrust::entities::Dimension,
block_handle: Option<Handle>,
) {
use acadrust::entities::Dimension;
use acadrust::objects::DimSubtype;
let base = dimension.base();
context.def_pt = Vector2::new(base.text_middle_point.x, base.text_middle_point.y);
context.is_def_textloc = base.text_user_positioned;
context.text_rotation = base.text_rotation;
context.flip_arrow1 = base.flip_arrow1;
context.flip_arrow2 = base.flip_arrow2;
if let Some(handle) = block_handle {
context.block = handle;
}
match (&mut context.subtype, dimension) {
(DimSubtype::Aligned { dimline_pt }, Dimension::Aligned(dim)) => {
*dimline_pt = dim.definition_point;
}
(DimSubtype::Aligned { dimline_pt }, Dimension::Linear(dim)) => {
*dimline_pt = dim.definition_point;
}
(DimSubtype::Angular { arc_pt }, Dimension::Angular2Ln(dim)) => {
*arc_pt = dim.dimension_arc;
}
(DimSubtype::Angular { arc_pt }, Dimension::Angular3Pt(dim)) => {
*arc_pt = dim.definition_point;
}
(
DimSubtype::Diametric {
first_arc_pt,
def_pt,
},
Dimension::Diameter(dim),
) => {
*first_arc_pt = dim.angle_vertex;
*def_pt = dim.definition_point;
}
(DimSubtype::Radial { first_arc_pt }, Dimension::Radius(dim)) => {
*first_arc_pt = dim.definition_point;
}
(
DimSubtype::RadialLarge {
ovr_center,
jog_point,
},
Dimension::LargeRadial(dim),
) => {
*ovr_center = dim.override_center;
*jog_point = dim.jog_point;
}
(
DimSubtype::Ordinate {
feature_location_pt,
leader_endpt,
},
Dimension::Ordinate(dim),
) => {
*feature_location_pt = dim.feature_location;
*leader_endpt = dim.leader_endpoint;
}
_ => {}
}
}
/// Copy an edited entity's placement back into one per-scale leaf so geometry
/// edits remain attached to the representation displayed by the caller.
pub fn sync_annotation_context_from_entity(
doc: &mut CadDocument,
entity_handle: Handle,
scale_handle: Option<Handle>,
) -> bool {
let Some(leaf_handle) =
active_object_context_for_scale(doc, entity_handle, scale_handle).map(|leaf| leaf.handle)
else {
return false;
};
let Some(entity) = doc.get_entity(entity_handle).cloned() else {
return false;
};
let dim_block_handle = match &entity {
EntityType::Dimension(dimension) => doc
.block_records
.iter()
.find(|record| record.name.eq_ignore_ascii_case(&dimension.base().block_name))
.map(|record| record.handle),
_ => None,
};
let Some(ObjectType::ObjectContextData(leaf)) = doc.objects.get_mut(&leaf_handle) else {
return false;
};
match (&entity, &mut leaf.kind) {
(
EntityType::Insert(insert),
ObjectContextKind::BlkRef {
rotation,
insertion,
scale_factor,
},
) => {
*rotation = insert.rotation;
*insertion = insert.insert_point;
*scale_factor =
Vector3::new(insert.x_scale(), insert.y_scale(), insert.z_scale());
}
(
EntityType::Text(text),
ObjectContextKind::Text {
horizontal_mode,
rotation,
insertion,
alignment,
},
) => {
*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,
};
*rotation = text.rotation;
*insertion = Vector2::new(text.insertion_point.x, text.insertion_point.y);
let point = text.alignment_point.unwrap_or(Vector3::ZERO);
*alignment = Vector2::new(point.x, point.y);
}
(EntityType::MText(mtext), ObjectContextKind::MText(context)) => {
sync_mtext_context(context, mtext);
}
(EntityType::Dimension(dimension), ObjectContextKind::Dim(context)) => {
sync_dimension_context(context, dimension, dim_block_handle);
}
(EntityType::MultiLeader(mleader), ObjectContextKind::MLeader(context)) => {
context.clone_from(&mleader.context);
}
(
EntityType::AttributeEntity(attribute),
ObjectContextKind::MTextAttribute(context),
) => {
context.horizontal_mode = attribute.horizontal_alignment.to_value();
context.rotation = attribute.rotation;
context.insertion =
Vector2::new(attribute.insertion_point.x, attribute.insertion_point.y);
context.alignment =
Vector2::new(attribute.alignment_point.x, attribute.alignment_point.y);
if let (Some(embedded), Some(mtext)) =
(&mut context.context, &attribute.embedded_mtext)
{
sync_mtext_context(&mut embedded.mtext, mtext);
}
}
(
EntityType::AttributeDefinition(attribute),
ObjectContextKind::MTextAttribute(context),
) => {
context.horizontal_mode = attribute.horizontal_alignment.to_value();
context.rotation = attribute.rotation;
context.insertion =
Vector2::new(attribute.insertion_point.x, attribute.insertion_point.y);
context.alignment =
Vector2::new(attribute.alignment_point.x, attribute.alignment_point.y);
if let (Some(embedded), Some(mtext)) =
(&mut context.context, &attribute.embedded_mtext)
{
sync_mtext_context(&mut embedded.mtext, mtext);
}
}
(EntityType::Leader(leader), ObjectContextKind::Leader(context)) => {
context.points = leader
.vertices
.iter()
.map(|point| *point - context.insertion_offset)
.collect();
context.x_direction = leader.horizontal_direction;
context.endpoint_projection = leader.annotation_offset;
}
(
EntityType::Tolerance(tolerance),
ObjectContextKind::Fcf {
location,
horizontal_direction,
},
) => {
*location = tolerance.insertion_point;
*horizontal_direction = tolerance.direction;
}
(EntityType::Hatch(hatch), ObjectContextKind::HatchScale(context)) => {
context.pattern_lines.clone_from(&hatch.pattern.lines);
for line in &mut context.pattern_lines {
line.base_point.x -= context.pattern_base.x;
line.base_point.y -= context.pattern_base.y;
}
context.pattern_scale = hatch.pattern_scale;
context.loop_types = hatch
.paths
.iter()
.map(|path| path.flags.bits() as i32)
.collect();
}
(EntityType::Hatch(hatch), ObjectContextKind::HatchView(context)) => {
context.hatch.pattern_lines.clone_from(&hatch.pattern.lines);
for line in &mut context.hatch.pattern_lines {
line.base_point.x -= context.hatch.pattern_base.x;
line.base_point.y -= context.hatch.pattern_base.y;
}
context.hatch.pattern_scale = hatch.pattern_scale;
context.hatch.loop_types = hatch
.paths
.iter()
.map(|path| path.flags.bits() as i32)
.collect();
context.view_normal = hatch.normal;
}
_ => {}
}
true
}
/// Move every stored scale representation with a pasted entity. The base
/// entity has already moved when this runs; each context leaf still contains
/// its source placement, so it is materialized, translated, and written back
/// without disturbing the transformed base representation.
pub fn translate_annotation_contexts(
doc: &mut CadDocument,
entity_handle: Handle,
delta: glam::DVec3,
) -> bool {
let Some(base_entity) = doc.get_entity(entity_handle).cloned() else {
return false;
};
let leaves: Vec<_> = annotation_scales_dict(doc, entity_handle)
.and_then(|collection| as_dict(doc, collection))
.map(|collection| {
collection
.entries
.iter()
.filter_map(|(_, leaf_handle)| match doc.objects.get(leaf_handle) {
Some(ObjectType::ObjectContextData(leaf)) => {
Some((leaf.handle, leaf.scale))
}
_ => None,
})
.collect()
})
.unwrap_or_default();
if leaves.is_empty() {
return false;
}
let mut changed = false;
for (_, scale) in leaves {
let mut placed = entity_for_annotation_context(doc, &base_entity, Some(scale)).into_owned();
crate::scene::view::dispatch::apply_transform(
&mut placed,
&crate::command::EntityTransform::Translate(delta),
);
// The entity translator keeps the compatibility break list in sync,
// while the complete per-segment list is a separate persisted field.
if let EntityType::MultiLeader(mleader) = &mut placed {
let offset = Vector3::new(delta.x, delta.y, delta.z);
for root in &mut mleader.context.leader_roots {
for line in &mut root.lines {
for info in &mut line.break_infos {
for pair in &mut info.break_points {
pair.start_point = pair.start_point + offset;
pair.end_point = pair.end_point + offset;
}
}
}
}
}
// A pasted dimension owns a newly generated graphics block. A source
// context can still carry the old block handle, so retain the block
// selected for the transformed base entity before synchronizing it.
if let (EntityType::Dimension(placed), EntityType::Dimension(base)) =
(&mut placed, &base_entity)
{
placed.base_mut().block_name.clone_from(&base.base().block_name);
}
if let Some(entity) = doc.get_entity_mut(entity_handle) {
*entity = placed;
}
changed |= sync_annotation_context_from_entity(doc, entity_handle, Some(scale));
if let Some(entity) = doc.get_entity_mut(entity_handle) {
*entity = base_entity.clone();
}
}
changed
}
/// Get the child dictionary stored under `key` in `parent_h`, creating an empty
/// one (owned by `parent_h`) and registering the entry when absent.
fn get_or_create_child_dict(doc: &mut CadDocument, parent_h: Handle, key: &str) -> Handle {
if let Some(h) = as_dict(doc, parent_h).and_then(|d| d.get(key)) {
return h;
}
let h = doc.allocate_handle();
let mut d = Dictionary::new();
d.handle = h;
d.owner = parent_h;
doc.objects.insert(h, ObjectType::Dictionary(d));
if let Some(ObjectType::Dictionary(p)) = doc.objects.get_mut(&parent_h) {
p.add_entry(key, h);
}
h
}
/// Remove an entity's per-object annotation context — the extension-dictionary
/// `AcDbContextDataManager` → `ACDB_ANNOTATIONSCALES` → per-scale leaf subtree —
/// and the legacy annotative XDATA markers, so [`is_annotative`] no longer fires
/// on it. The shared `SCALE` objects in `ACAD_SCALELIST` are document-level and
/// left intact.
pub fn clear_annotation_context(doc: &mut CadDocument, handle: Handle) {
if let Some(xdict_h) = doc.get_entity(handle).and_then(|e| e.common().xdictionary_handle) {
// Collect the manager subtree (manager dict, its scales dict, the leaves)
// before mutating, then drop them.
let mut remove = Vec::new();
if let Some(mgr_h) = as_dict(doc, xdict_h).and_then(|d| d.get("AcDbContextDataManager")) {
remove.push(mgr_h);
if let Some(scales_h) =
as_dict(doc, mgr_h).and_then(|d| d.get("ACDB_ANNOTATIONSCALES"))
{
remove.push(scales_h);
if let Some(scales) = as_dict(doc, scales_h) {
for (_, leaf) in &scales.entries {
remove.push(*leaf);
}
}
}
}
if let Some(ObjectType::Dictionary(xd)) = doc.objects.get_mut(&xdict_h) {
xd.entries.retain(|(k, _)| k != "AcDbContextDataManager");
}
for h in remove {
doc.objects.remove(&h);
}
}
// Strip the legacy annotative XDATA markers the detection also honours.
crate::scene::view::dispatch::set_entity_xdata(doc, handle, "AcadAnnotative", None);
crate::scene::view::dispatch::set_entity_xdata(doc, handle, "AcAnnoPO", None);
crate::scene::view::dispatch::set_entity_xdata(doc, handle, "AcAnnotativeData", None);
}
/// Does a style name resolve to `name` (or to "Standard" when `name` is blank)?
fn name_matches(style_name: &str, name: &str) -> bool {
style_name.eq_ignore_ascii_case(name)
|| (name.trim().is_empty() && style_name.eq_ignore_ascii_case("Standard"))
}
/// Whether `name` currently names an annotative text style.
///
/// Creation paths use this to stamp a new TEXT/MTEXT with its own annotation
/// context. Render-time detection deliberately does not use it: an existing
/// non-annotative object may still reference a style later made annotative.
pub fn text_style_is_annotative(doc: &CadDocument, name: &str) -> bool {
doc.text_styles
.iter()
.find(|s| name_matches(&s.name, name))
.is_some_and(|s| s.annotative)
}
pub fn dim_style_is_annotative(doc: &CadDocument, name: &str) -> bool {
doc.dim_styles
.iter()
.find(|s| name_matches(&s.name, name))
.is_some_and(|s| s.annotative)
}
fn mleader_style_annotative(doc: &CadDocument, handle: Option<Handle>) -> bool {
let Some(h) = handle else {
return false;
};
doc.objects.iter().any(|(oh, o)| {
matches!(o, ObjectType::MultiLeaderStyle(s) if *oh == h && s.is_annotative)
})
}
fn table_style_annotative(doc: &CadDocument, handle: Option<Handle>) -> bool {
let Some(handle) = handle else {
return false;
};
doc.objects.iter().any(|(object_handle, object)| {
matches!(object, ObjectType::TableStyle(style) if *object_handle == handle && style.annotative)
})
}
/// Whether an object carries a per-object annotation context with at least one
/// per-scale representation — its extension dictionary holds an
/// `AcDbContextDataManager` whose `ACDB_ANNOTATIONSCALES` collection is
/// non-empty. This catches objects that are annotative by context even when
/// their style is not.
///
/// The non-empty requirement matters: a context manager with an *empty*
/// `ACDB_ANNOTATIONSCALES` is a single-representation marker with no per-scale
/// reps (common in files where objects were flagged annotative but never given
/// a scale). Such an object has nothing to scale *to*, so it must render at its
/// base geometry — treating it as annotative would (mis)scale it by the
/// annotation factor in annotation-scaled viewports, ballooning the text.
fn has_context_manager(doc: &CadDocument, common: &EntityCommon) -> bool {
let key = |d: &Dictionary, name: &str| {
d.entries
.iter()
.find(|(k, _)| k.eq_ignore_ascii_case(name))
.map(|(_, h)| *h)
};
let Some(xd) = common.xdictionary_handle.and_then(|h| as_dict(doc, h)) else {
return false;
};
let Some(mgr) = key(xd, "AcDbContextDataManager").and_then(|h| as_dict(doc, h)) else {
return false;
};
key(mgr, "ACDB_ANNOTATIONSCALES")
.and_then(|h| as_dict(doc, h))
.map(|coll| !coll.entries.is_empty())
.unwrap_or(false)
}
/// Whether a MULTILEADER participates in annotation scaling through its
/// per-object context or entity flag. A later style edit is applied only by an
/// explicit style update, so it cannot retroactively change existing objects.
pub fn mleader_is_annotative(
doc: &CadDocument,
mleader: &acadrust::entities::MultiLeader,
) -> bool {
has_context_manager(doc, &mleader.common)
|| mleader.enable_annotation_scale
}
pub fn annotation_style_is_annotative(doc: &CadDocument, entity: &EntityType) -> bool {
match entity {
EntityType::Text(text) => text_style_is_annotative(doc, &text.style),
EntityType::MText(text) => text_style_is_annotative(doc, &text.style),
EntityType::AttributeEntity(attribute) => {
text_style_is_annotative(doc, &attribute.text_style)
}
EntityType::AttributeDefinition(attribute) => {
text_style_is_annotative(doc, &attribute.text_style)
}
EntityType::Dimension(dimension) => {
dim_style_is_annotative(doc, &dimension.base().style_name)
}
EntityType::Leader(leader) => dim_style_is_annotative(doc, &leader.dimension_style),
EntityType::Tolerance(tolerance) => {
dim_style_is_annotative(doc, &tolerance.dimension_style_name)
}
EntityType::MultiLeader(leader) => {
mleader_style_annotative(doc, leader.style_handle)
}
EntityType::Table(table) => table_style_annotative(doc, table.table_style_handle),
_ => false,
}
}
pub fn apply_mleader_style(
entity: &mut acadrust::entities::MultiLeader,
style: &acadrust::objects::MultiLeaderStyle,
) {
entity.style_handle = Some(style.handle);
entity.content_type = (style.content_type as i16).into();
entity.path_type = (style.path_type as i16).into();
entity.line_color = style.line_color;
entity.line_type_handle = style.line_type_handle;
entity.line_weight = style.line_weight;
entity.enable_landing = style.enable_landing;
entity.enable_dogleg = style.enable_dogleg;
entity.dogleg_length = style.landing_distance;
entity.arrowhead_handle = style.arrowhead_handle;
entity.arrowhead_size = style.arrowhead_size;
entity.context.arrowhead_size = style.arrowhead_size;
entity.context.landing_gap = style.landing_gap;
entity.text_style_handle = style.text_style_handle;
entity.text_color = style.text_color;
entity.text_frame = style.text_frame;
entity.text_height = style.text_height;
entity.context.text_height = style.text_height;
entity.context.text_style_handle = style.text_style_handle;
entity.context.text_color = style.text_color;
entity.text_left_attachment = (style.text_left_attachment as i16).into();
entity.text_right_attachment = (style.text_right_attachment as i16).into();
entity.text_top_attachment = (style.text_top_attachment as i16).into();
entity.text_bottom_attachment = (style.text_bottom_attachment as i16).into();
entity.text_attachment_direction = (style.text_attachment_direction as i16).into();
entity.text_alignment = (style.text_alignment as i16).into();
entity.text_angle_type = (style.text_angle_type as i16).into();
entity.context.text_left_attachment = entity.text_left_attachment;
entity.context.text_right_attachment = entity.text_right_attachment;
entity.context.text_top_attachment = entity.text_top_attachment;
entity.context.text_bottom_attachment = entity.text_bottom_attachment;
entity.context.text_alignment = entity.text_alignment;
entity.block_content_handle = style.block_content_handle;
entity.block_content_color = style.block_content_color;
entity.block_connection_type = (style.block_content_connection as i16).into();
entity.block_rotation = style.block_content_rotation;
entity.block_scale = Vector3::new(
style.block_content_scale_x,
style.block_content_scale_y,
style.block_content_scale_z,
);
entity.scale_factor = style.scale_factor;
entity.context.block_content_handle = style.block_content_handle;
entity.context.block_content_color = style.block_content_color;
entity.context.block_connection_type = entity.block_connection_type;
entity.context.block_rotation = style.block_content_rotation;
entity.context.block_content_scale = entity.block_scale;
entity.context.scale_factor = style.scale_factor;
entity.enable_annotation_scale = style.is_annotative;
for root in &mut entity.context.leader_roots {
root.landing_distance = style.landing_distance;
root.text_attachment_direction = entity.text_attachment_direction;
for line in &mut root.lines {
if line.override_flags.is_empty() {
line.path_type = entity.path_type;
line.line_color = style.line_color;
line.line_type_handle = style.line_type_handle;
line.line_weight = style.line_weight;
line.arrowhead_handle = style.arrowhead_handle;
line.arrowhead_size = style.arrowhead_size;
}
}
}
}
pub fn apply_mleader_style_to_object(
doc: &mut CadDocument,
handle: Handle,
style: &acadrust::objects::MultiLeaderStyle,
) -> bool {
let Some(EntityType::MultiLeader(original)) = doc.get_entity(handle).cloned() else {
return false;
};
let mut styled = original.clone();
apply_mleader_style(&mut styled, style);
if let Some(EntityType::MultiLeader(entity)) = doc.get_entity_mut(handle) {
*entity = styled;
}
let leaf_handles: Vec<_> = annotation_scales_dict(doc, handle)
.and_then(|collection| as_dict(doc, collection))
.map(|collection| collection.entries.iter().map(|(_, leaf)| *leaf).collect())
.unwrap_or_default();
for leaf_handle in leaf_handles {
let Some(ObjectType::ObjectContextData(leaf)) = doc.objects.get_mut(&leaf_handle) else {
continue;
};
let ObjectContextKind::MLeader(context) = &mut leaf.kind else {
continue;
};
let context_scale = context.scale_factor;
let text_height_ratio = if original.text_height.abs() > 1.0e-12 {
context.text_height / original.text_height
} else {
1.0
};
let mut per_scale = original.clone();
per_scale.context.clone_from(context);
apply_mleader_style(&mut per_scale, style);
per_scale.context.scale_factor = context_scale;
if style.text_height > 0.0 && text_height_ratio.is_finite() {
per_scale.context.text_height = style.text_height * text_height_ratio;
}
context.clone_from(&per_scale.context);
}
true
}
pub fn update_entity_from_annotation_style(
doc: &mut CadDocument,
handle: Handle,
current_scale: Option<Handle>,
) -> bool {
enum StyleUpdate {
Text { annotative: bool, height: f64 },
Dimension { annotative: bool },
MultiLeader(acadrust::objects::MultiLeaderStyle),
ContextOnly,
}
let Some(entity) = doc.get_entity(handle) else {
return false;
};
let update = match entity {
EntityType::Text(text) => doc.text_styles.get(&text.style).map(|style| {
StyleUpdate::Text {
annotative: style.annotative,
height: style.height,
}
}),
EntityType::MText(text) => doc.text_styles.get(&text.style).map(|style| {
StyleUpdate::Text {
annotative: style.annotative,
height: style.height,
}
}),
EntityType::AttributeEntity(attribute) => doc
.text_styles
.get(&attribute.text_style)
.map(|style| StyleUpdate::Text {
annotative: style.annotative,
height: style.height,
}),
EntityType::AttributeDefinition(attribute) => doc
.text_styles
.get(&attribute.text_style)
.map(|style| StyleUpdate::Text {
annotative: style.annotative,
height: style.height,
}),
EntityType::Dimension(dimension) => doc
.dim_styles
.get(&dimension.base().style_name)
.map(|style| StyleUpdate::Dimension {
annotative: style.annotative,
}),
EntityType::Leader(leader) => doc
.dim_styles
.get(&leader.dimension_style)
.map(|style| StyleUpdate::Dimension {
annotative: style.annotative,
}),
EntityType::Tolerance(tolerance) => doc
.dim_styles
.get(&tolerance.dimension_style_name)
.map(|style| StyleUpdate::Dimension {
annotative: style.annotative,
}),
EntityType::MultiLeader(leader) => leader.style_handle.and_then(|style_handle| {
match doc.objects.get(&style_handle) {
Some(ObjectType::MultiLeaderStyle(style)) => {
Some(StyleUpdate::MultiLeader(style.clone()))
}
_ => None,
}
}),
_ if is_annotative(doc, entity) => Some(StyleUpdate::ContextOnly),
_ => None,
};
let Some(update) = update else {
return false;
};
let annotative = match update {
StyleUpdate::Text { annotative, height } => {
if height > 0.0 {
if let Some(entity) = doc.get_entity_mut(handle) {
match entity {
EntityType::Text(text) => text.height = height,
EntityType::MText(text) => text.height = height,
EntityType::AttributeEntity(attribute) => attribute.height = height,
EntityType::AttributeDefinition(attribute) => attribute.height = height,
_ => {}
}
}
}
annotative
}
StyleUpdate::Dimension { annotative } => annotative,
StyleUpdate::MultiLeader(style) => {
apply_mleader_style_to_object(doc, handle, &style);
style.is_annotative
}
StyleUpdate::ContextOnly => return true,
};
set_entity_annotative(doc, handle, annotative);
if annotative {
if let Some(scale) = current_scale {
create_annotation_context(doc, handle, scale);
}
}
true
}
/// Whether an entity participates in annotation scaling.
pub fn is_annotative(doc: &CadDocument, entity: &EntityType) -> bool {
// Per-object annotation context (works regardless of style).
if has_context_manager(doc, entity.common()) {
return true;
}
// Legacy annotative XDATA markers.
let xd = &entity.common().extended_data;
let standard_marker = xd
.get_record("AcadAnnotative")
.and_then(|record| {
record.values.iter().filter_map(|value| match value {
acadrust::xdata::XDataValue::Integer16(value) => Some(*value),
_ => None,
}).last()
})
.is_some_and(|value| value != 0);
if standard_marker
|| xd.get_record("AcAnnoPO").is_some()
|| xd.get_record("AcAnnotativeData").is_some()
{
return true;
}
// Annotative via the entity's own flag.
// Text styles can be made annotative without converting existing text;
// those objects must keep their stored height until explicitly updated.
match entity {
EntityType::Text(_) => false,
EntityType::MText(t) => t.is_annotative,
EntityType::AttributeEntity(attribute) => attribute.flags.annotative,
EntityType::AttributeDefinition(attribute) => attribute.flags.annotative,
EntityType::MultiLeader(ml) => mleader_is_annotative(doc, ml),
_ => false,
}
}