Struct Layer 

pub struct Layer {
    pub posx: i32,
    pub posy: i32,
    pub inner_content: String,
    /* private fields */
}

An arbitrary type that contains a position and content. A layer can be positioned anywhere in the console, and it can instead be edited as a string without manual manipulation of the cursor.

A layer is one dimensional, meaning that it does not fit multiple lines.

Layers may shrink and grow, however have allocated space in the terminal, for example, a layer with content “Hello” which then is changed to “Bye” will actually appear on the console as “Bye “ (with two spaces). This means that they have their own space depending on their longest length string. This trait is useful for hiding certain objects from view, however can be reset using shrink which removes trailing whitespace.

Examples

A layer can be initialized using new:

let layer = Layer::new(0, 0);
layer.set_content("Hello world!".into());

A layer can then be displayed from a terminal either by being added using add_layer and then displayed using refresh:

let new: &mut Layer = t.add_layer(layer);
t.refresh();

Or it can be displayed externally by using draw_layer:

t.draw_layer(&layer);
t.draw_layer_static(&layer); // <- a layer can also be drawn without editting the cursor position

A layer also contains another type of content called inner_content which will never be displayed to the terminal, however may contain useful data about the layer:

layer.inner_content = "Hello rust!".into();
layer.inner_to_outer(); // <- replaces the outer content with the inner content.

Fields

posx: i32

posy: i32

inner_content: String

Implementations

impl Layer

pub fn new(posx: i32, posy: i32) -> Layer

Returns a new layer at posx, posy

pub fn get_content(&self) -> String

Returns a clone of the outer content of the layer.

pub fn set_content(&mut self, c: String) -> &mut Layer

Sets the current outer content of the layer.

pub fn inner_to_outer(&mut self)

Replaces the outer content with the inner content.

pub fn shrink(&mut self)

Removes any hiding content.

Trait Implementations

impl Clone for Layer

fn clone(&self) -> Layer

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Layer

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

Formats the value using the given formatter.