Struct ComponentDimensions 

pub struct ComponentDimensions { /* private fields */ }

ComponentDimensions - Centralizes all UI component mathematical operations

Eliminates ad hoc math like:

• bounds.left() + 1, bounds.right() - 1
• width.saturating_sub(2)
• (x1 + x2) / 2 for center calculations
• Hit testing and coordinate validation

All component positioning, sizing, and geometric operations centralized here.

Implementations

impl ComponentDimensions

pub fn new(bounds: Bounds) -> Self

Create new component dimensions

pub fn with_border_thickness(self, thickness: usize) -> Self

Builder pattern for configuration

pub fn with_padding(self, padding: Padding) -> Self

pub fn with_scrollbars(self, vertical: bool, horizontal: bool) -> Self

pub fn outer_bounds(&self) -> Bounds

Get outer bounds (full component including border)

pub fn border_bounds(&self) -> Bounds

Get border area bounds (just the border region)

pub fn content_bounds(&self) -> Bounds

Get content area bounds (inside border and padding) Replaces: bounds.left() + 2, bounds.right() - 2, etc.

pub fn center(&self) -> (usize, usize)

Get center point of component Replaces: (x1 + x2) / 2, (y1 + y2) / 2

pub fn content_center(&self) -> (usize, usize)

Get content area center

pub fn content_width(&self) -> usize

Calculate available content width Replaces: width.saturating_sub(4), bounds.width() - borders

pub fn content_height(&self) -> usize

Calculate available content height Replaces: height.saturating_sub(4), bounds.height() - borders

pub fn border_coordinates(&self) -> BorderCoordinates

Get border drawing coordinates for each side

pub fn inside_border_bounds(&self) -> Bounds

Calculate inside border coordinates (border + 1) Replaces: bounds.left() + 1, bounds.right() - 1, etc.

pub fn hit_test(&self, x: usize, y: usize) -> HitRegion

Hit test a point against component regions Centralizes all coordinate hit testing logic

pub fn calculate_title_position( &self, title: &str, position: &str, padding: usize, ) -> TitleLayout

Calculate title positioning within component Centralizes title positioning math from draw_utils.rs

pub fn is_near_corner( &self, x: usize, y: usize, tolerance: usize, ) -> Option<Corner>

Check if point is near corner (for resize detection) Replaces: x >= bounds.x2.saturating_sub(corner_tolerance) && x <= bounds.x2

pub fn available_child_space(&self) -> (usize, usize)

Calculate space available for child components

pub fn validate(&self) -> Result<(), ComponentDimensionError>

Validate that dimensions are reasonable

impl ComponentDimensions

pub fn vertical_scrollbar_track_bounds(&self) -> Bounds

Get vertical scrollbar track bounds Replaces: bounds.top() + 1, bounds.bottom() - 1

pub fn horizontal_scrollbar_track_bounds(&self) -> Bounds

Get horizontal scrollbar track bounds
Replaces: bounds.left() + 1, bounds.right() - 1

Trait Implementations

impl Clone for ComponentDimensions

fn clone(&self) -> ComponentDimensions

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ComponentDimensions

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

Formats the value using the given formatter.