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ColumnMovePolicy

gpui_kit_grid

Trait ColumnMovePolicy 

Source 
pub trait ColumnMovePolicy: 'static {
    // Required methods
    fn is_allowed(
        &self,
        context: &ColumnMoveContext<'_>,
        block: Range<usize>,
        gap: usize,
    ) -> bool;
    fn zone_block(
        &self,
        context: &ColumnMoveContext<'_>,
        column: ColumnIx,
    ) -> Range<usize>;

    // Provided method
    fn normalize(&self, _order: &mut ColumnOrder<'_>) { ... }
}
Expand description

Decides which columns move together and where they may go, for header drags, move_column, move_band, zone changes and the move Actions.

The default is BandedMove: a ColumnBand stays together, as in DevExpress, Syncfusion, Kendo and Infragistics. FreeMove lets a column leave its band, as AG Grid does.

Required Methods§

Source

fn is_allowed( &self, context: &ColumnMoveContext<'_>, block: Range<usize>, gap: usize, ) -> bool

Whether block (a range of context.columns()) may be inserted at gap (0..=columns().len(), counted before the block is removed).

Source

fn zone_block( &self, context: &ColumnMoveContext<'_>, column: ColumnIx, ) -> Range<usize>

The columns that change zone together with column: a range of context.columns() that contains it.

Provided Methods§

Source

fn normalize(&self, _order: &mut ColumnOrder<'_>)

Restores the policy’s invariants after the schema is built or a layout is restored. Stable: a valid order stays as it is.

Implementors§