build method

Widget build(BuildContext context)

Builds the widget tree for this table cell.

This method renders the cell with appropriate styling including:

• Background color based on theme and state
• Border styling with state resolution
• Hover effects for column and row highlighting
• Selection state visualization
• Resize handles if the table is resizable

The build process integrates with the table's hover system to provide visual feedback when the mouse hovers over cells in the same row or column.

Returns a Widget representing the fully styled table cell.

Implementation

Widget build(BuildContext context) {
  final flattenedData = Data.of<_FlattenedTableCell>(context);
  final resizedData = Data.maybeOf<_ResizableTableData>(context);
  final resizedState = Data.maybeOf<_ResizableTableState>(context);
  final currentCell = _HoveredCell(
    flattenedData.column,
    flattenedData.row,
    flattenedData.columnSpan,
    flattenedData.rowSpan,
  );
  var theme = this.theme;
  var defaultTheme = flattenedData.tableCellThemeBuilder(context);
  final appTheme = Theme.of(context);
  return Stack(
    fit: StackFit.passthrough,
    children: [
      ColoredBox(
        color: backgroundColor ?? appTheme.colorScheme.background,
        child: MouseRegion(
          onEnter: (event) {
            if (flattenedData.enabled) {
              flattenedData.hoveredCellNotifier.value = currentCell;
            }
          },
          onExit: (event) {
            if (flattenedData.enabled) {
              if (flattenedData.hoveredCellNotifier.value == currentCell) {
                flattenedData.hoveredCellNotifier.value = null;
              }
            }
          },
          child: ListenableBuilder(
            // valueListenable: flattenedData.hoveredCellNotifier,
            listenable: Listenable.merge([
              flattenedData.hoveredCellNotifier,
              flattenedData.dragNotifier,
            ]),
            builder: (context, child) {
              var hoveredCell = flattenedData.hoveredCellNotifier.value;
              var drag = flattenedData.dragNotifier?.value;
              if (drag != null) {
                hoveredCell = null;
              }
              var resolvedStates = {
                if (hoveredCell != null &&
                    ((columnHover &&
                            hoveredCell.intersects(
                                currentCell, Axis.vertical)) ||
                        (rowHover &&
                            hoveredCell.intersects(
                                currentCell, Axis.horizontal))))
                  WidgetState.hovered,
                if (flattenedData.selected) WidgetState.selected,
                if (!flattenedData.enabled) WidgetState.disabled,
              };
              return Container(
                decoration: BoxDecoration(
                  border: theme?.border?.resolve(resolvedStates) ??
                      defaultTheme.border?.resolve(resolvedStates),
                  color: theme?.backgroundColor?.resolve(resolvedStates) ??
                      defaultTheme.backgroundColor?.resolve(resolvedStates),
                ),
                child: DefaultTextStyle.merge(
                  style: theme?.textStyle?.resolve(resolvedStates) ??
                      defaultTheme.textStyle?.resolve(resolvedStates),
                  child: child!,
                ),
              );
            },
            child: child,
          ),
        ),
      ),
      if (resizedData != null && resizedState != null)
        Positioned.fill(
          child: _CellResizer(
              controller: resizedData.controller,
              onHover: resizedState._onHover,
              onDrag: resizedState._onDrag,
              hoverNotifier: resizedState._hoverNotifier,
              dragNotifier: resizedState._dragNotifier,
              maxRow: resizedState._maxRow,
              theme: resizedState.widget.theme,
              maxColumn: resizedState._maxColumn),
        )
    ],
  );
}