pdf_writer::writers

Struct StructTreeRoot

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pub struct StructTreeRoot<'a> { /* private fields */ }
Expand description

Writer for a structure tree root dictionary. PDF 1.3+

This struct is created by Catalog::struct_tree_root.

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impl<'a> StructTreeRoot<'a>

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pub fn child(&mut self, id: Ref) -> &mut Self

Write the /K attribute to reference the immediate child of this element.

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pub fn children(&mut self) -> TypedArray<'_, Ref>

Start writing the /K attribute to reference the immediate children of this element.

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pub fn id_tree(&mut self) -> NameTree<'_, Ref>

Start writing the /IDTree attribute to map element identifiers to their corresponding structure element objects. Required if any elements have element identifiers.

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pub fn parent_tree(&mut self) -> NumberTree<'_, Ref>

Start writing the /ParentTree attribute to maps structure elements to the content items they belong to. Required if any structure elements contain content items.

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pub fn parent_tree_next_key(&mut self, key: i32) -> &mut Self

Write the /ParentTreeNextKey attribute to specify the next available key for the /ParentTree dictionary.

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pub fn role_map(&mut self) -> RoleMap<'_>

Start writing the /RoleMap attribute to map structure element names to their approximate equivalents from the standard set of types. PDF 1.4+.

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pub fn class_map(&mut self) -> ClassMap<'_>

Start writing the /ClassMap attribute to map objects designating attribute classes to their corresponding attribute objects or arrays thereof.

Methods from Deref<Target = Dict<'a>>§

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pub fn len(&self) -> i32

The number of written pairs.

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pub fn is_empty(&self) -> bool

Whether no pairs have been written so far.

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pub fn insert(&mut self, key: Name<'_>) -> Obj<'_>

Start writing a pair with an arbitrary value.

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pub fn pair<T: Primitive>(&mut self, key: Name<'_>, value: T) -> &mut Self

Write a pair with a primitive value.

This is a shorthand for dict.insert(key).primitive(value).

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pub fn pairs<'n, T: Primitive>( &mut self, pairs: impl IntoIterator<Item = (Name<'n>, T)>, ) -> &mut Self

Write a sequence of pairs with primitive values.

Trait Implementations§

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impl<'a> Deref for StructTreeRoot<'a>

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type Target = Dict<'a>

The resulting type after dereferencing.
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fn deref(&self) -> &Self::Target

Dereferences the value.
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impl<'a> DerefMut for StructTreeRoot<'a>

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fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.
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impl<'a, 'any> Rewrite<'a> for StructTreeRoot<'any>

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type Output = StructTreeRoot<'a>

The writer with the rewritten lifetime.
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impl<'a> Writer<'a> for StructTreeRoot<'a>

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fn start(obj: Obj<'a>) -> Self

Start writing the object.

Auto Trait Implementations§

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impl<'a> Freeze for StructTreeRoot<'a>

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impl<'a> RefUnwindSafe for StructTreeRoot<'a>

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impl<'a> Send for StructTreeRoot<'a>

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impl<'a> Sync for StructTreeRoot<'a>

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impl<'a> Unpin for StructTreeRoot<'a>

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impl<'a> !UnwindSafe for StructTreeRoot<'a>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> Finish for T

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fn finish(self)

Does nothing but move self, equivalent to drop.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.