import { Color, CoreTypes, Property, View } from '@nativescript/core';
import { EventData as IEventData } from '@nativescript/core/data/observable';
import { ImageAsset } from '@nativescript/core/image-asset';
import { ImageSource } from '@nativescript/core/image-source';
export declare enum CLogTypes {
    log,
    info,
    warning,
    error
}
export declare const ImageViewTraceCategory = "NativescriptImage";
export declare const CLog: (type: CLogTypes, ...args: any[]) => void;
export declare type Transition = 'fade' | 'curlUp';
export declare enum ScaleType {
    None = "none",
    Fill = "fill",
    AspectFill = "aspectFill",
    AspectFit = "aspectFit",
    Center = "center",
    CenterCrop = "centerCrop",
    CenterInside = "centerInside",
    FitCenter = "fitCenter",
    FitEnd = "fitEnd",
    FitStart = "fitStart",
    FitXY = "fitXY",
    FocusCrop = "focusCrop"
}
export interface AnimatedImage {
    start(): void;
    stop(): void;
    isRunning(): boolean;
}
export interface ImageInfo {
    getHeight(): number;
    getWidth(): number;
}
export interface ImageError {
    getMessage(): string;
    getErrorType(): string;
    toString(): string;
}
export interface ImagePipelineConfigSetting {
    isDownsampleEnabled?: boolean;
    leakTracker?: any;
}
export declare class EventData implements IEventData {
    private _eventName;
    private _object;
    get eventName(): string;
    set eventName(value: string);
    get object(): any;
    set object(value: any);
}
export declare type Stretch = 'none' | 'fill' | 'aspectFill' | 'aspectFit';
export declare class ImageBase extends View {
    static finalImageSetEvent: string;
    static failureEvent: string;
    static intermediateImageFailedEvent: string;
    static intermediateImageSetEvent: string;
    static releaseEvent: string;
    static submitEvent: string;
    src: string | ImageSource | ImageAsset;
    lowerResSrc: string;
    placeholderImageUri: string;
    failureImageUri: string;
    stretch: ScaleType;
    fadeDuration: number;
    backgroundUri: string;
    progressiveRenderingEnabled: boolean;
    localThumbnailPreviewsEnabled: boolean;
    showProgressBar: boolean;
    progressBarColor: string;
    roundAsCircle: boolean;
    roundBottomRightRadius: number;
    roundTopLeftRadius: number;
    roundTopRightRadius: number;
    roundBottomLeftRadius: number;
    blurRadius: number;
    blurDownSampling: number;
    autoPlayAnimations: boolean;
    tapToRetryEnabled: boolean;
    aspectRatio: number;
    decodeWidth: number;
    decodeHeight: number;
    alwaysFade: boolean;
    noCache: boolean;
    tintColor: Color;
    readonly isLoading: boolean;
    static srcProperty: Property<ImageBase, string | ImageSource | ImageAsset>;
    static lowerResSrcProperty: Property<ImageBase, string>;
    static placeholderImageUriProperty: Property<ImageBase, string>;
    static failureImageUriProperty: Property<ImageBase, string>;
    static stretchProperty: Property<ImageBase, string>;
    static backgroundUriProperty: Property<ImageBase, string>;
    static progressiveRenderingEnabledProperty: Property<ImageBase, boolean>;
    static localThumbnailPreviewsEnabledProperty: Property<ImageBase, boolean>;
    static showProgressBarProperty: Property<ImageBase, boolean>;
    static progressBarColorProperty: Property<ImageBase, string>;
    static roundAsCircleProperty: Property<ImageBase, boolean>;
    static blurRadiusProperty: Property<ImageBase, number>;
    static blurDownSamplingProperty: Property<ImageBase, number>;
    static autoPlayAnimationsProperty: Property<ImageBase, boolean>;
    static tapToRetryEnabledProperty: Property<ImageBase, boolean>;
    static aspectRatioProperty: Property<ImageBase, number>;
    static decodeWidthProperty: Property<ImageBase, number>;
    static decodeHeightProperty: Property<ImageBase, number>;
    static tintColorProperty: Property<ImageBase, Color>;
    static alwaysFadeProperty: Property<ImageBase, boolean>;
    static fadeDurationProperty: Property<ImageBase, number>;
    static noCacheProperty: Property<ImageBase, boolean>;
    static roundTopLeftRadiusProperty: Property<ImageBase, CoreTypes.LengthType>;
    static roundTopRightRadiusProperty: Property<ImageBase, CoreTypes.LengthType>;
    static roundBottomLeftRadiusProperty: Property<ImageBase, CoreTypes.LengthType>;
    static roundBottomRightRadiusProperty: Property<ImageBase, CoreTypes.LengthType>;
    static clipToBoundsProperty: Property<ImageBase, boolean>;
    protected handleImageProgress(value: number, totalSize?: number): void;
    private static needsSizeAdjustment;
    computeScaleFactor(measureWidth: number, measureHeight: number, widthIsFinite: boolean, heightIsFinite: boolean, nativeWidth: number, nativeHeight: number, aspectRatio: number): {
        width: number;
        height: number;
    };
}