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Text

Struct Text 

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

A collection of styled text spans.

Text provides a high-level interface for working with styled text. It stores spans (styled text units) and provides operations for:

  • Appending and building text
  • Applying base styles
  • Splitting into lines
  • Truncating and wrapping to widths

§Ownership

Text uses Cow<'static, str> for storage, which means:

  • String literals are stored by reference (zero-copy)
  • Owned strings are stored inline
  • The API is ergonomic (no lifetime parameters on Text)

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impl Text

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pub const fn new() -> Self

Create an empty text.

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pub fn raw(content: impl AsRef<str>) -> Self

Create text from a raw string (may contain newlines).

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pub fn styled(content: impl AsRef<str>, style: Style) -> Self

Create styled text from a string (may contain newlines).

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pub fn from_line(line: Line) -> Self

Create text from a single line.

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pub fn from_lines(lines: impl IntoIterator<Item = Line>) -> Self

Create text from multiple lines.

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pub fn from_spans<'a>(spans: impl IntoIterator<Item = Span<'a>>) -> Self

Create text from spans (single line).

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pub fn from_segments<'a>( segments: impl IntoIterator<Item = Segment<'a>>, ) -> Self

Create text from segments.

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pub fn is_empty(&self) -> bool

Check if empty.

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pub fn height(&self) -> usize

Get the number of lines.

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pub fn height_as_u16(&self) -> u16

Get the number of lines as u16, saturating at u16::MAX.

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pub fn width(&self) -> usize

Get the maximum width across all lines.

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pub fn measurement(&self) -> TextMeasurement

Return bounds-based measurement for this text block.

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pub fn lines(&self) -> &[Line]

Get the lines.

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pub fn style(&self) -> Option<Style>

Get the style of the first span, if any.

Returns None if the text is empty or has no styled spans.

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pub fn push_line(&mut self, line: Line)

Add a line.

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pub fn with_line(self, line: Line) -> Self

Append a line (builder pattern).

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pub fn push_span<'a>(&mut self, span: Span<'a>)

Add a span to the last line (or create new line if empty).

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pub fn with_span<'a>(self, span: Span<'a>) -> Self

Append a span to the last line (builder pattern).

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pub fn apply_base_style(&mut self, base: Style)

Apply a base style to all lines and spans.

The base style is merged with each span’s style, with the span’s style taking precedence for conflicting properties.

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pub fn with_base_style(self, base: Style) -> Self

Create a new Text with base style applied.

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pub fn to_plain_text(&self) -> String

Get the plain text content (lines joined with newlines).

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pub fn into_segment_lines(self) -> SegmentLines<'static>

Convert to SegmentLines.

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

Iterate over lines.

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pub fn truncate(&mut self, max_width: usize, ellipsis: Option<&str>)

Truncate all lines to a maximum width.

Lines exceeding max_width are truncated. If ellipsis is provided, it replaces the end of truncated lines.

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pub fn truncated(&self, max_width: usize, ellipsis: Option<&str>) -> Self

Create a truncated copy.

Trait Implementations§

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impl Clone for Text

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fn clone(&self) -> Text

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

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

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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 Default for Text

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fn default() -> Text

Returns the “default value” for a type. Read more
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impl From<&str> for Text

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fn from(s: &str) -> Self

Converts to this type from the input type.
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impl From<Line> for Text

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fn from(line: Line) -> Self

Converts to this type from the input type.
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impl From<String> for Text

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fn from(s: String) -> Self

Converts to this type from the input type.
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impl FromIterator<Line> for Text

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fn from_iter<I: IntoIterator<Item = Line>>(iter: I) -> Self

Creates a value from an iterator. Read more
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impl<'a> FromIterator<Span<'a>> for Text

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fn from_iter<I: IntoIterator<Item = Span<'a>>>(iter: I) -> Self

Creates a value from an iterator. Read more
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impl<'a> IntoIterator for &'a Text

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type Item = &'a Line

The type of the elements being iterated over.
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type IntoIter = Iter<'a, Line>

Which kind of iterator are we turning this into?
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fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value. Read more
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impl IntoIterator for Text

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type Item = Line

The type of the elements being iterated over.
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type IntoIter = IntoIter<Line>

Which kind of iterator are we turning this into?
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fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value. Read more
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impl PartialEq for Text

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Eq for Text

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impl StructuralPartialEq for Text

Auto Trait Implementations§

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impl Freeze for Text

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impl RefUnwindSafe for Text

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impl Send for Text

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impl Sync for Text

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impl Unpin for Text

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impl UnsafeUnpin for Text

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impl UnwindSafe for Text

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> 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<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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> 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
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.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more