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Brendan Zabarauskas 2014-05-15 17:45:57 -07:00
parent 16e2b131e7
commit d3dfb78683
1 changed files with 44 additions and 41 deletions
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69
src/components/main/layout/inline.rs
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@ -59,7 +59,22 @@ use sync::Arc;
/// left corner of the green zone is the same as that of the line, but
/// the green zone can be taller and wider than the line itself.
pub struct LineBox {
/// Consider the following HTML and rendered element with linebreaks:
pub range: Range<LineIndices>,
pub bounds: Rect<Au>,
pub green_zone: Size2D<Au>
}
int_range_index! {
#[doc = "The index of a box fragment in a flattened vector of DOM elements."]
struct FragmentIndex(int)
}
/// A line index consists of two indices: a fragment index that refers to the
/// index of a DOM fragment within a flattened inline element; and a glyph index
/// where the 0th glyph refers to the first glyph of that fragment.
///
/// For example, consider the following HTML and rendered element with
/// linebreaks:
///
/// ~~~html
/// <span>I <span>like truffles,</span> yes I do.</span>
@ -80,41 +95,29 @@ pub struct LineBox {
/// |------------|-------------|-------------|
/// | 'I like' | 'truffles,' | 'yes I do.' |
/// ~~~
pub range: Range<LineIndices>,
pub bounds: Rect<Au>,
pub green_zone: Size2D<Au>
}
int_range_index! {
#[doc = "The index of a box fragment into the flattened vector of DOM"]
#[doc = "elements."]
#[doc = ""]
#[doc = "For example, given the HTML below:"]
#[doc = ""]
#[doc = "~~~"]
#[doc = "<span>I <span>like truffles,</span> yes I do.</span>"]
#[doc = "~~~"]
#[doc = ""]
#[doc = "The fragments would be indexed as follows:"]
#[doc = ""]
#[doc = "~~~"]
#[doc = "| 0 | 1 | 2 |"]
#[doc = "|------|------------------|--------------|"]
#[doc = "| 'I ' | 'like truffles,' | ' yes I do.' |"]
#[doc = "~~~"]
struct FragmentIndex(int)
}
/// A line index consists of two indices: a fragment index that refers to the
/// index of a DOM fragment within a flattened inline element; and a glyph index
/// where the 0th glyph refers to the first glyph of that fragment.
#[deriving(Clone, Eq, Ord, TotalEq, TotalOrd, Zero)]
pub struct LineIndices {
/// The index of a box fragment into the flattened vector of DOM
/// elements.
///
/// For example, given the HTML below:
///
/// ~~~
/// <span>I <span>like truffles,</span> yes I do.</span>
/// ~~~
///
/// The fragments would be indexed as follows:
///
/// ~~~
/// | 0 | 1 | 2 |
/// |------|------------------|--------------|
/// | 'I ' | 'like truffles,' | ' yes I do.' |
/// ~~~
pub fragment_index: FragmentIndex,
/// The index of a character in a single DOM fragment. Ligatures and
/// continuous runs of whitespace are treated as single characters.
/// Non-breakable DOM fragments such as images are treated as
/// having a range length of `1`.
/// The index of a character in a DOM fragment. Ligatures and continuous
/// runs of whitespace are treated as single characters. Non-breakable DOM
/// fragments such as images are treated as having a range length of `1`.
///
/// For example, given the HTML below:
///