Struct Layout 

#[non_exhaustive]
pub struct Layout {

    pub module_px: u32,
    pub quiet_x_px: u32,
    pub quiet_y_px: u32,
    pub symbol_w_px: u32,
    pub symbol_h_px: u32,
    pub symbol_x_px: u32,
    pub symbol_y_px: u32,
    pub hri_scale: u32,
    pub hri_block_h_px: u32,
    pub hri_x_px: u32,
    pub hri_y_px: u32,
    pub width_px: u32,
    pub height_px: u32,
}

Pixel geometry of a rendered symbol.

Every measurement is a whole number of pixels, and the symbol width is an exact multiple of the module width. Snapping to integers matters: a module that straddles a pixel boundary is rendered as a grey edge, which degrades the contrast a scanner relies on.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

module_px: u32

Width of one module, in pixels. Always at least 1.

quiet_x_px: u32

Horizontal quiet zone per side, in pixels.

quiet_y_px: u32

Vertical quiet zone per side, in pixels. Zero for linear symbologies, which need no vertical quiet zone.

symbol_w_px: u32

Symbol width, in pixels.

symbol_h_px: u32

Symbol height, in pixels. For linear symbologies this is the bar height; for matrix symbologies it follows the module grid.

symbol_x_px: u32

Left edge of the symbol.

symbol_y_px: u32

Top edge of the symbol.

hri_scale: u32

Integer scale factor applied to the 5x7 HRI font. Zero when no HRI is drawn.

hri_block_h_px: u32

Total vertical space taken by the HRI line, including the gap above it. Zero when no HRI is drawn.

hri_x_px: u32

Left edge of the HRI text.

hri_y_px: u32

Top edge of the HRI text.

width_px: u32

Total image width.

height_px: u32

Total image height.

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 Eq for Layout

impl PartialEq for Layout

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Layout