ColumnProcessor

Defined in: core/processors/column-processor.svelte.ts:12

A class responsible for processing and managing columns in a datagrid. It handles operations like initialization, assigning parent column IDs, grouping, pinning, and generating column hierarchies.

Type Parameters

• TOriginalRow

Constructors

new ColumnProcessor()

new ColumnProcessor<TOriginalRow>(datagrid): ColumnProcessor<TOriginalRow>

Defined in: core/processors/column-processor.svelte.ts:20

Initializes a new ColumnProcessor instance.

Parameters

datagrid

DatagridCore<TOriginalRow>

The datagrid instance this processor will operate on.

Returns

ColumnProcessor<TOriginalRow>

Properties

Property	Type	Defined in
`datagrid`	`DatagridCore`<`TOriginalRow`>	core/processors/column-processor.svelte.ts:13

Methods

assignParentColumnIds()

assignParentColumnIds(columns, parentColumnId): ColumnDef<TOriginalRow>[]

Defined in: core/processors/column-processor.svelte.ts:55

Recursively assigns parent column IDs to each column in the provided list.

Parameters

columns

ColumnDef<TOriginalRow>[]

The columns to process.

parentColumnId

string = null

The parent column ID to assign to child columns.

Returns

ColumnDef<TOriginalRow>[]

The columns with assigned parent column IDs.

calculateColSpan()

calculateColSpan(col): number

Defined in: core/processors/column-processor.svelte.ts:168

Calculates the column span for a given column. If the column is a group column, the span is calculated based on its visible children.

Parameters

col

ColumnDef<TOriginalRow>

The column to calculate the span for.

Returns

number

The calculated column span.

createColumnHierarchy()

createColumnHierarchy<TOriginalRow>(partialFlatColumns): ColumnDef<TOriginalRow>[]

Defined in: core/processors/column-processor.svelte.ts:119

Creates a column hierarchy from the given flat column definitions. This function organizes the columns into a tree structure where group columns are parents and regular columns are their children.

Type Parameters

• TOriginalRow

Parameters

partialFlatColumns

ColumnDef<TOriginalRow>[]

The flat list of columns to structure into a hierarchy.

Returns

ColumnDef<TOriginalRow>[]

A hierarchical column structure.

generateHeaderRows()

generateHeaderRows(cols): ColumnDef<TOriginalRow>[][]

Defined in: core/processors/column-processor.svelte.ts:203

Generates the header rows for the datagrid based on the column hierarchy. Each header row contains columns that span across the grid, depending on their position in the hierarchy.

Parameters

cols

ColumnDef<TOriginalRow>[]

The columns to generate header rows for.

Returns

ColumnDef<TOriginalRow>[][]

A 2D array representing the rows of the header.

getMaxDepth()

getMaxDepth(cols): number

Defined in: core/processors/column-processor.svelte.ts:187

Determines the maximum depth of a column hierarchy.

Parameters

cols

ColumnDef<TOriginalRow>[]

The columns to calculate the depth for.

Returns

number

The maximum depth of the column hierarchy.

initializeColumns()

initializeColumns(columns): ColumnDef<any>[]

Defined in: core/processors/column-processor.svelte.ts:31

Initializes the columns by executing pre- and post-processing hooks, placing group columns at the front, and enhancing column definitions with isGroupColumn flag.