Struct Layout 

pub struct Layout {
    pub line_offset: u16,
    pub offset_x: u16,
    pub offset_y: u16,
    pub width: u16,
    pub height: u16,
    pub max_height: u16,
    pub render_region: RenderRegion,
}

Layout represents a portion of the screen that is available to be rendered to.

Assume the highlighted part of the block below is the place available for rendering in the given box

 ____________
|            |
|     ███████|
|  ██████████|
|  ██████████|
'------------'

Fields

line_offset: u16

 ____________
|  vvv-- line_offset
|     ███████|
|  ██████████|
|  ██████████|
'------------'

offset_x: u16

 ____________
|vv-- offset_x
|     ███████|
|  ██████████|
|  ██████████|
'------------'

offset_y: u16

 .-- offset_y
|'>          |
|     ███████|
|  ██████████|
|  ██████████|
'------------'

width: u16

 ____________
|            |
|     ███████|
|  ██████████|
|  ██████████|
'------------'
 ^^^^^^^^^^^^-- width

height: u16

 _____ height --.
|            | <'
|     ███████| <'
|  ██████████| <'
|  ██████████| <'
'------------'

max_height: u16

 ____________
|.-- max_height
|'>   ███████|
|'>██████████|
|'>██████████|
'------------'

render_region: RenderRegion

The region to render if full text cannot be rendered

Implementations

impl Layout

pub fn new(line_offset: u16, size: Size) -> Self

Creates a new Layout.

pub fn with_line_offset(self, line_offset: u16) -> Self

Creates a new Layout with given line_offset.

pub fn with_size(self, size: Size) -> Self

Creates a new Layout with given width and height.

pub fn with_offset(self, offset_x: u16, offset_y: u16) -> Self

Creates a new Layout with new offset_x and offset_y.

pub fn with_render_region(self, region: RenderRegion) -> Self

Creates a new Layout with new render_region.

pub fn with_max_height(self, max_height: u16) -> Self

Creates a new Layout with new max_height.

pub fn with_cursor_pos(self, cursor_pos: (u16, u16)) -> Self

Creates a new Layout that represents a region past the cursor_pos. cursor_pos is relative to offset_x and offset_y.

pub fn set_size(&mut self, terminal_size: Size)

Sets the width and height of the layout.

pub fn offset_cursor(&self, cursor_pos: (u16, u16)) -> (u16, u16)

Converts a cursor_pos relative to (offset_x, offset_y) to be relative to (0, 0)

pub fn line_width(&self) -> u16

Gets the width of renderable space on the first line.

 ____________
|     vvvvvvv-- line_width
|     ███████|
|  ██████████|
|  ██████████|
'------------'

pub fn available_width(&self) -> u16

Gets the width of renderable space on subsequent lines.

 ____________
|  vvvvvvvvvv-- available_width
|     ███████|
|  ██████████|
|  ██████████|
'------------'

pub fn get_start(&self, height: u16) -> u16

Gets the starting line number for the given height taking into account the max_height and the render_region.

If the height of the widget to render is 5 and the max_height is 2, then the start would be:

• RenderRegion::Top: 0
• RenderRegion::Middle: 1
• RenderRegion::Top: 3

Trait Implementations

impl Clone for Layout

fn clone(&self) -> Layout

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Layout

impl Debug for Layout

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

Formats the value using the given formatter.

impl Default for Layout

fn default() -> Layout

Returns the “default value” for a type.

impl Eq for Layout

impl Hash for Layout

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Layout

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl StructuralPartialEq for Layout