Struct layout_2020::flexbox::layout::FlexItem

struct FlexItem<'a> {

    box_: &'a FlexItemBox,
    content_box_size: FlexRelativeVec2<AuOrAuto>,
    content_min_size: FlexRelativeVec2<Au>,
    content_max_size: FlexRelativeVec2<Option<Au>>,
    padding: FlexRelativeSides<Au>,
    border: FlexRelativeSides<Au>,
    margin: FlexRelativeSides<AuOrAuto>,
    pbm_auto_is_zero: FlexRelativeVec2<Au>,
    flex_base_size: Au,
    flex_base_size_is_definite: bool,
    hypothetical_main_size: Au,
    align_self: T,
    depends_on_block_constraints: bool,
    preferred_aspect_ratio: Option<AspectRatio>,
}

A flex item with some intermediate results

Fields

box_: &'a FlexItemBox

content_box_size: FlexRelativeVec2<AuOrAuto>

content_min_size: FlexRelativeVec2<Au>

content_max_size: FlexRelativeVec2<Option<Au>>

padding: FlexRelativeSides<Au>

border: FlexRelativeSides<Au>

margin: FlexRelativeSides<AuOrAuto>

pbm_auto_is_zero: FlexRelativeVec2<Au>

Sum of padding, border, and margin (with auto assumed to be zero) in each axis. This is the difference between an outer and inner size.

flex_base_size: Au

https://drafts.csswg.org/css-flexbox/#algo-main-item

flex_base_size_is_definite: bool

Whether the Self::flex_base_size comes from a definite flex-basis. If false and the container main size is also indefinite, percentages in the item’s content that resolve against its main size should be indefinite.

hypothetical_main_size: Au

https://drafts.csswg.org/css-flexbox/#algo-main-item

align_self: T

This is align-self, defaulting to align-items if auto

depends_on_block_constraints: bool

Whether or not the size of this FlexItem depends on its block constraints.

preferred_aspect_ratio: Option<AspectRatio>

https://drafts.csswg.org/css-sizing-4/#preferred-aspect-ratio

Implementations

impl<'a> FlexItem<'a>

fn new(flex_context: &FlexContext<'_>, box_: &'a FlexItemBox) -> Self

fn stretches(&self) -> bool

impl FlexItem<'_>

fn layout( &self, used_main_size: Au, flex_context: &FlexContext<'_>, used_cross_size_override: Option<Au>, non_stretch_layout_result: Option<&mut FlexItemLayoutResult>, ) -> Option<FlexItemLayoutResult>

Return the hypothetical cross size together with laid out contents of the fragment. From https://drafts.csswg.org/css-flexbox/#algo-cross-item:

performing layout as if it were an in-flow block-level box with the used main size and the given available space, treating auto as fit-content.

fn synthesized_baseline_relative_to_margin_box(&self, content_size: Au) -> Au

fn resolve_auto_margins( &self, flex_context: &FlexContext<'_>, line_cross_size: Au, item_cross_content_size: Au, space_distributed_to_auto_main_margins: Au, ) -> FlexRelativeSides<Au>

Return the cross-start, cross-end, main-start, and main-end margins, with auto values resolved. See:

• https://drafts.csswg.org/css-flexbox/#algo-cross-margins
• https://drafts.csswg.org/css-flexbox/#algo-main-align

fn align_along_cross_axis( &self, margin: &FlexRelativeSides<Au>, used_cross_size: &Au, line_cross_size: Au, propagated_baseline: Au, max_propagated_baseline: Au, wrap_reverse: bool, ) -> Au

Return the coordinate of the cross-start side of the content area