Enum Position 

pub enum Position {
    TopLeft,
    TopCenter,
    TopRight,
    CenterLeft,
    Center,
    CenterRight,
    BottomLeft,
    BottomCenter,
    BottomRight,
}

位置 — 对齐 PHP Grafika\Position

PHP 源码（Position.php）9 种位置字符串：

• top-left / top-center / top-right
• center-left / center / center-right
• bottom-left / bottom-center / bottom-right

Variants

TopLeft

左上（对齐 top-left）

TopCenter

顶部居中（对齐 top-center）

TopRight

右上（对齐 top-right）

CenterLeft

左侧居中（对齐 center-left）

Center

正中（对齐 center）

CenterRight

右侧居中（对齐 center-right）

BottomLeft

左下（对齐 bottom-left）

BottomCenter

底部居中（对齐 bottom-center）

BottomRight

右下（对齐 bottom-right）

Implementations

impl Position

pub fn parse(s: &str) -> Result<Position, ImageError>

从字符串解析 — 对齐 Grafika Position::__construct($position)

pub fn as_str(self) -> &'static str

转换为字符串（对齐 PHP 字符串值）

pub fn get_xy(self, w1: u32, h1: u32, w2: u32, h2: u32) -> (i32, i32)

计算 x/y 偏移 — 对齐 Grafika\Position::getXY($w1, $h1, $w2, $h2)

参数：

• w1, h1：主图宽高
• w2, h2：叠加图宽高

返回 (x, y) 偏移坐标

Trait Implementations

impl Clone for Position

fn clone(&self) -> Position

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Position

impl Debug for Position

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

Formats the value using the given formatter.

impl Eq for Position

impl PartialEq for Position

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Position