import { BinaryReader, BinaryWriter } from "@bufbuild/protobuf/wire";
import { Color } from "./Color";
import { Point2 } from "./Point2";
/** A text label on a 2D image */
export interface TextAnnotation {
    $type: "foxglove.TextAnnotation";
    /** Timestamp of annotation */
    timestamp: Date | undefined;
    /**
     * Bottom-left origin of the text label in 2D image coordinates (pixels).
     * The coordinate uses the top-left corner of the top-left pixel of the image as the origin.
     */
    position: Point2 | undefined;
    /** Text to display */
    text: string;
    /** Font size in pixels */
    fontSize: number;
    /** Text color */
    textColor: Color | undefined;
    /** Background fill color */
    backgroundColor: Color | undefined;
}
export declare const TextAnnotation: MessageFns<TextAnnotation, "foxglove.TextAnnotation">;
type Builtin = Date | Function | Uint8Array | string | number | boolean | undefined;
type DeepPartial<T> = T extends Builtin ? T : T extends globalThis.Array<infer U> ? globalThis.Array<DeepPartial<U>> : T extends ReadonlyArray<infer U> ? ReadonlyArray<DeepPartial<U>> : T extends {} ? {
    [K in Exclude<keyof T, "$type">]?: DeepPartial<T[K]>;
} : Partial<T>;
type KeysOfUnion<T> = T extends T ? keyof T : never;
type Exact<P, I extends P> = P extends Builtin ? P : P & {
    [K in keyof P]: Exact<P[K], I[K]>;
} & {
    [K in Exclude<keyof I, KeysOfUnion<P> | "$type">]: never;
};
interface MessageFns<T, V extends string> {
    readonly $type: V;
    encode(message: T, writer?: BinaryWriter): BinaryWriter;
    decode(input: BinaryReader | Uint8Array, length?: number): T;
    fromJSON(object: any): T;
    toJSON(message: T): unknown;
    create<I extends Exact<DeepPartial<T>, I>>(base?: I): T;
    fromPartial<I extends Exact<DeepPartial<T>, I>>(object: I): T;
}
export {};