Struct ImageParams 

pub struct ImageParams {
    pub w: Option<u32>,
    pub h: Option<u32>,
    pub thumb: Option<String>,
    pub rotate: Option<u16>,
    pub format: Option<String>,
    pub quality: Option<u8>,
}

图片处理查询参数。

Fields

w: Option<u32>

限制最大宽度。

h: Option<u32>

限制最大高度。

thumb: Option<String>

缩略图尺寸，格式 WxH。

rotate: Option<u16>

旋转角度，仅允许 0/90/180/270。

format: Option<String>

输出格式：jpeg/jpg、png、webp。

quality: Option<u8>

输出质量，范围 1-100。

Implementations

impl ImageParams

fn is_empty(&self) -> bool

fn cache_key(&self, path: &str) -> String

fn validate(&self) -> Result<(), StatusCode>

校验参数合法性，返回 HTTP 400 状态码表示非法。

Trait Implementations

impl Clone for ImageParams

fn clone(&self) -> ImageParams

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ImageParams

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

Formats the value using the given formatter.

impl Default for ImageParams

fn default() -> ImageParams

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ImageParams

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for ImageParams

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 ImageParams

fn eq(&self, other: &ImageParams) -> 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 Eq for ImageParams

impl StructuralPartialEq for ImageParams