Struct egui::Region

pub struct Region {
    pub min_rect: Rect,
    pub max_rect: Rect,
    // some fields omitted
}

This describes the bounds and existing contents of an Ui. It is what is used and updated by Layout when adding new widgets.

Fields

min_rect: Rect

This is the minimal size of the Ui. When adding new widgets, this will generally expand.

Always finite.

The bounding box of all child widgets, but not necessarily a tight bounding box since Ui can start with a non-zero min_rect size.

max_rect: Rect

The maximum size of this Ui. This is a soft max meaning new widgets will try not to expand beyond it, but if they have to, they will.

Text will wrap at max_rect.right(). Some widgets (like separator lines) will try to fill the full max_rect width of the ui.

max_rect will always be at least the size of min_rect.

If the max_rect size is zero, it is a signal that child widgets should be as small as possible. If the max_rect size is infinite, it is a signal that child widgets should take up as much room as they want.

Implementations

impl Region

pub fn max_rect_finite(&self) -> Rect

This is like max_rect, but will never be infinite. If the desired rect is infinite ("be as big as you want") this will be bounded by min_rect instead.

pub fn expand_to_include_rect(&mut self, rect: Rect)

Expand the min_rect and max_rect of this ui to include a child at the given rect.

Trait Implementations

impl Clone for Region

pub fn clone(&self) -> Region

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for Region

impl Debug for Region

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

Formats the value using the given formatter.