public _TheatreElement(RenderObjectWidget widget) : base(widget)
{
D.assert(!WidgetsD.debugChildrenHaveDuplicateKeys(widget, ((_Theatre)widget).offstage));
}
public Table(
Key key = null,
List <TableRow> children = null,
Dictionary <int, TableColumnWidth> columnWidths = null,
TableColumnWidth defaultColumnWidth = null,
TableBorder border = null,
TableCellVerticalAlignment defaultVerticalAlignment = TableCellVerticalAlignment.top,
TextBaseline?textBaseline = null
) : base(key: key)
{
children = children ?? new List <TableRow>();
defaultColumnWidth = defaultColumnWidth ?? new FlexColumnWidth(1.0f);
this.children = children;
this.columnWidths = columnWidths;
this.defaultColumnWidth = defaultColumnWidth;
this.border = border;
this.defaultVerticalAlignment = defaultVerticalAlignment;
this.textBaseline = textBaseline;
D.assert(() => {
if (children.Any((TableRow row) => {
return(row.children.Any((Widget cell) => { return cell == null; }));
}))
{
throw new UIWidgetsError(
"One of the children of one of the rows of the table was null.\n" +
"The children of a TableRow must not be null."
);
}
return(true);
});
D.assert(() => {
if (children.Any((TableRow row1) => {
return(row1.key != null &&
children.Any((TableRow row2) => { return row1 != row2 && row1.key == row2.key; }));
}))
{
throw new UIWidgetsError(
"Two or more TableRow children of this Table had the same key.\n" +
"All the keyed TableRow children of a Table must have different Keys."
);
}
return(true);
});
D.assert(() => {
if (children.isNotEmpty())
{
int cellCount = this.children.First().children.Count;
if (children.Any((TableRow row) => { return(row.children.Count != cellCount); }))
{
throw new UIWidgetsError(
"Table contains irregular row lengths.\n" +
"Every TableRow in a Table must have the same number of children, so that every cell is filled. " +
"Otherwise, the table will contain holes."
);
}
}
return(true);
});
_rowDecorations = null;
if (children.Any((TableRow row) => { return(row.decoration != null); }))
{
_rowDecorations = new List <Decoration>();
foreach (TableRow row in children)
{
_rowDecorations.Add(row.decoration);
}
}
D.assert(() => {
List <Widget> flatChildren = new List <Widget>();
foreach (TableRow row in children)
{
flatChildren.AddRange(row.children);
}
if (WidgetsD.debugChildrenHaveDuplicateKeys(this, flatChildren))
{
throw new UIWidgetsError(
"Two or more cells in this Table contain widgets with the same key.\n" +
"Every widget child of every TableRow in a Table must have different keys. The cells of a Table are " +
"flattened out for processing, so separate cells cannot have duplicate keys even if they are in " +
"different rows."
);
}
return(true);
});
}