@devexperts/dxcharts-lite
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TypeScript
/*
* Copyright (C) 2019 - 2025 Devexperts Solutions IE Limited
* This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
* If a copy of the MPL was not distributed with this file, You can obtain one at https://mozilla.org/MPL/2.0/.
*/
import { NumericAxisLabel, NumericAxisLabelsGenerator } from '../labels_generator/numeric-axis-labels.generator';
import { CanvasBoundsContainer } from '../../canvas/canvas-bounds-container';
import { ChartBaseElement } from '../../model/chart-base-element';
import { ScaleModel } from '../../model/scale.model';
export declare class YAxisBaseLabelsModel extends ChartBaseElement {
private scale;
private labelsGenerator;
private canvasBoundsContainer;
private paneUUID;
private extentIdx;
labels: Array<NumericAxisLabel>;
private prevYAxisHeight;
private animFrameId;
constructor(scale: ScaleModel, labelsGenerator: NumericAxisLabelsGenerator, canvasBoundsContainer: CanvasBoundsContainer, paneUUID: string, extentIdx: number);
/**
* This method is used to activate the component. It calls the parent's doActivate method and subscribes to the merge of two observables:
* - this.scale.yChanged
* - this.canvasBoundsContainer.observeBoundsChanged
* The merge of these two observables is used to update the labels of the component when either the y-axis scale model changes or the canvas bounds change.
* If the height of the canvas bounds changes by more than 1.5 times the previous height, the labels cache is invalidated and the previous y-axis height is updated.
*/
protected doActivate(): void;
/**
* Generates new labels with labelsGenerator
* Then, it calls the updateYAxisWidth method to update the width of the y-axis.
*/
recalculateLabels(): void;
/**
* Updates the labels of the chart's y-axis by generating new numeric labels using the yAxisLabelsGenerator object.
* Then, it calls the updateYAxisWidth method to update the width of the y-axis.
*/
updateLabels(): void;
}