blockly
Version:
Blockly is a library for building visual programming editors.
53 lines • 1.99 kB
TypeScript
/**
* @license
* Copyright 2019 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import type { BlockSvg } from '../../block_svg.js';
import type { ConstantProvider } from '../common/constants.js';
import type { PreviousConnection } from './previous_connection.js';
import { Row } from './row.js';
/**
* An object containing information about what elements are in the top row of a
* block as well as sizing information for the top row.
* Elements in a top row can consist of corners, hats, spacers, and previous
* connections.
* After this constructor is called, the row will contain all non-spacer
* elements it needs.
*/
export declare class TopRow extends Row {
/**
* The starting point for drawing the row, in the y direction.
* This allows us to draw hats and similar shapes that don't start at the
* origin. Must be non-negative (see #2820).
*/
capline: number;
/** How much the row extends up above its capline. */
ascenderHeight: number;
/** Whether the block has a previous connection. */
hasPreviousConnection: boolean;
/** The previous connection on the block, if any. */
connection: PreviousConnection | null;
/**
* @param constants The rendering constants provider.
*/
constructor(constants: ConstantProvider);
/**
* Returns whether or not the top row has a left square corner.
*
* @param block The block whose top row this represents.
* @returns Whether or not the top row has a left square corner.
*/
hasLeftSquareCorner(block: BlockSvg): boolean;
/**
* Returns whether or not the top row has a right square corner.
*
* @param _block The block whose top row this represents.
* @returns Whether or not the top row has a right square corner.
*/
hasRightSquareCorner(_block: BlockSvg): boolean;
measure(): void;
startsWithElemSpacer(): boolean;
endsWithElemSpacer(): boolean;
}
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