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OleEntry

Struct OleEntry 

Source
pub struct OleEntry {
    pub partname: PartName,
    pub blob: Vec<u8>,
    pub rid: String,
}
Expand description

OLE 对象条目:保存到 /ppt/embeddings/oleObjectN.bin 的 OLE part 元数据(TODO-043)。

对应 python-pptx 中 SlideShapes.add_ole_object(...) 隐式管理的 oleObject part。 在 to_opc_package 阶段,每个 OleEntry 会:

  1. 写出独立的 /ppt/embeddings/oleObjectN.bin part(内容为原始 OLE 二进制 blob);
  2. slideN.xml.rels 中添加 <Relationship Type=".../oleObject" Target="../embeddings/oleObjectN.bin"/>
  3. rid 同步回 OleObjectShape.frame.graphic.OleObject.rid,供 <p:oleObj r:id="..."/> 引用。

§与 MediaEntry 的差异

  • MediaEntry 持有图片二进制,用于 <p:pic><a:blip r:embed="..."/>
  • OleEntry 持有 OLE 复合文档二进制,用于 <p:oleObj r:id="..."/>
  • 两者 partname 命名空间不同(/ppt/media/ vs /ppt/embeddings/)。

§与 ChartEntry 的差异

  • ChartEntry 持有强类型 Chart 模型,写出时调用 chart.to_xml() 生成 XML;
  • OleEntry 持有原始二进制 blob,写出时直接写入字节,经过 XML 序列化。

Fields§

§partname: PartName

oleObject part 路径,例如 /ppt/embeddings/oleObject1.bin

§blob: Vec<u8>

原始 OLE 二进制数据(CFB 复合文档)。

§rid: String

在 slide xml 中引用的关系 id(形如 rIdOle1)。

Trait Implementations§

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impl Clone for OleEntry

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fn clone(&self) -> OleEntry

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for OleEntry

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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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> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for 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.
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fn vzip(self) -> V