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js_sdk/u-draw-poster/utils/object-sizing.d.ts

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+export declare type ObjectFit = "contain" | "cover";
+export declare type ObjectPosition = ["left" | "center" | "right", "top" | "center" | "bottom"];
+export interface Size {
+    width: number;
+    height: number;
+}
+/**
+ * 用于计算图片的宽高比例
+ * @see https://drafts.csswg.org/css-images-3/#sizing-terms
+ *
+ * ## 名词解释
+ * ### intrinsic dimensions
+ * 图片本身的尺寸
+ *
+ * ### specified size
+ * 用户指定的元素尺寸
+ *
+ * ### concrete object size
+ * 应用了 `objectFit` 之后图片的显示尺寸
+ *
+ * ### default object size
+ */
+export declare function calculateConcreteRect(style: {
+    /** @see https://developer.mozilla.org/zh-CN/docs/Web/CSS/object-fit */
+    objectFit?: ObjectFit;
+    /** @see https://developer.mozilla.org/zh-CN/docs/Web/CSS/object-position */
+    intrinsicPosition?: ObjectPosition;
+    specifiedPosition?: [number, number];
+}, intrinsicSize: Size, specifiedSize: Size): {
+    sx: number;
+    sy: number;
+    sw: number;
+    sh: number;
+    dx: number;
+    dy: number;
+    dw: number;
+    dh: number;
+};