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PdfPageModel

Struct PdfPageModel 

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pub struct PdfPageModel { /* private fields */ }
Expand description

一页 PDF 的语义内容。

通过 with_block 逐块构建页面, 可选设置页面尺寸与旋转角度。

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impl PdfPageModel

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pub const fn new(index: PageIndex) -> Self

创建空页面模型。

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pub fn with_block(self, block: PdfBlock) -> Self

追加语义内容块。

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pub const fn with_dimensions(self, width_pt: f64, height_pt: f64) -> Self

设置页面尺寸(PDF points)。

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pub const fn with_rotation(self, degrees: u16) -> Self

设置页面旋转角度(0、90、180、270)。

非标准值会被静默保留,但调用方应仅传入四个标准角度。

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pub const fn index(&self) -> PageIndex

返回零基页索引。

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pub const fn number(&self) -> PageNumber

返回一基页码。

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pub fn page_number(&self) -> usize

返回一基页码数值。

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pub const fn width_pt(&self) -> Option<f64>

返回页面宽度(PDF points)。

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pub const fn height_pt(&self) -> Option<f64>

返回页面高度(PDF points)。

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pub const fn rotation(&self) -> u16

返回页面旋转角度。

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pub fn blocks(&self) -> &[PdfBlock]

返回页面内容块。

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pub fn iter(&self) -> impl Iterator<Item = &PdfBlock>

返回页面内容块的迭代器。

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pub fn blocks_by_type( &self, filter: PdfBlockType, ) -> impl Iterator<Item = &PdfBlock>

按语义分类筛选内容块。

返回迭代器,仅产出匹配指定 PdfBlockType 的块引用。

§Examples
use easypdf_core::{PdfBlock, PdfBlockType, PdfPageModel, SourceLocation};
use easypdf_core::PageIndex;

let loc = SourceLocation::new(PageIndex::new(0), 1.0);
let page = PdfPageModel::new(PageIndex::new(0))
    .with_block(PdfBlock::heading(1, "Title", loc))
    .with_block(PdfBlock::paragraph("Body", loc));

let headings: Vec<_> = page.blocks_by_type(PdfBlockType::Heading).collect();
assert_eq!(headings.len(), 1);

Trait Implementations§

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impl Clone for PdfPageModel

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fn clone(&self) -> PdfPageModel

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 PdfPageModel

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

Formats the value using the given formatter. Read more
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impl PartialEq for PdfPageModel

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fn eq(&self, other: &PdfPageModel) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for PdfPageModel

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impl<T> Any for T
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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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fn explicit(self, class: Class, tag: u32) -> TaggedParser<'a, Explicit, Self, E>

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impl<'a, T, E> AsTaggedImplicit<'a, E> for T
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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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