devexpress-richedit
Version:
DevExpress Rich Text Editor is an advanced word-processing tool designed for working with rich text documents.
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TypeScript
import { BoundaryInterval } from '@devexpress/utils/lib/intervals/boundary';
import { FixedInterval } from '@devexpress/utils/lib/intervals/fixed';
import { IInternalApi } from '../internal-api';
import { CanvasSizeInfo } from './canvas-size-info';
import { DocumentLayout } from '../layout/document-layout';
import { IModelChangesListener } from '../interfaces/model-changes-listener';
import { ModelChange } from '../model/changes/change';
export declare class CanvasScrollInfo implements IModelChangesListener {
protected static VISIBLE_PAGES_RANGE: number;
protected static VISIBLE_PAGES_RANGE_TOUCH: number;
protected static VISIBLE_AREA_HEIGHT_MULTIPLIER: number;
protected canvas: HTMLDivElement;
protected sizes: CanvasSizeInfo;
protected renderPagesOffset: number;
lastScrollTop: number;
lastScrollLeft: number;
startVisiblePageIndex: number;
endVisiblePageIndex: number;
readonly internalApi: IInternalApi;
private _needUpdatePageIndexes;
constructor(canvas: HTMLDivElement, sizes: CanvasSizeInfo, internalApi: IInternalApi);
modelChanged(change: ModelChange): void;
init(canvas: HTMLDivElement, sizes: CanvasSizeInfo): void;
getStartRenderPageIndex(): number;
getEndRenderPageIndex(): number;
renderPageIndexInterval(): FixedInterval;
updatePageIndexesInfo(layout: DocumentLayout): void;
getVisibleInterval(): BoundaryInterval;
private getScrollTop;
private getVisibleHeight;
onCanvasSizeChanged(): void;
}