/**
 * @name pixelratio.directives
 * @description pixelratio directives in ngx-responsive
 *
 * @license MIT
 */
import { EventEmitter, TemplateRef, ViewContainerRef, OnInit, OnDestroy, ChangeDetectorRef } from '@angular/core';
import { ResponsiveState } from '../../@core/providers/responsive-state/responsive-state';
import { RESPONSIVE_BASE } from '../../@core/providers/responsive-base/responsive-base';
import { PlatformService } from '../../@core/providers/platform-service/platform.service';
export declare class Is1xPixelDirective extends RESPONSIVE_BASE<any> {
    protected _state: string;
    protected _showWhenTrue: boolean;
    set is1xPixel(grid_state: string);
    constructor(templateRef: TemplateRef<any>, viewContainer: ViewContainerRef, _responsiveState: ResponsiveState, cd: ChangeDetectorRef, platformService: PlatformService);
}
export declare class IsRetinaDirective extends RESPONSIVE_BASE<any> {
    protected _state: string;
    protected _showWhenTrue: boolean;
    set isRetina(grid_state: string);
    constructor(templateRef: TemplateRef<any>, viewContainer: ViewContainerRef, _responsiveState: ResponsiveState, cd: ChangeDetectorRef, platformService: PlatformService);
}
export declare class Is4kDirective extends RESPONSIVE_BASE<any> {
    protected _state: string;
    protected _showWhenTrue: boolean;
    set isRetina(grid_state: string);
    constructor(templateRef: TemplateRef<any>, viewContainer: ViewContainerRef, _responsiveState: ResponsiveState, cd: ChangeDetectorRef, platformService: PlatformService);
}
export declare class PixelRatioInfoDirective implements OnInit, OnDestroy {
    private _responsiveState;
    private viewContainer;
    private cd;
    currentstate: string;
    private _subscription;
    private noRepeat;
    private _isEnabledForPlatform;
    set pixelratioInfo(grid_state: string[] | string);
    pixelratio: EventEmitter<any>;
    constructor(_responsiveState: ResponsiveState, viewContainer: ViewContainerRef, cd: ChangeDetectorRef, platformService: PlatformService);
    ngOnInit(): void;
    ngOnDestroy(): void;
    updateData(value: any): void;
    _ifValueChanged(oldValue: any, newValue: any): boolean;
}