private GridLayoutNodeCellSpan GetCellSpan(int row, int column, bool ensureExists)
{
if (ensureExists)
{
if (m_cellSpans == null)
{
m_cellSpans = new GridLayoutNodeCellSpanList();
}
var index = GetListIndex(row, column);
while (index >= m_cellSpans.Count)
{
m_cellSpans.Add(new GridLayoutNodeCellSpan(1, 1));
}
var cellSpan = m_cellSpans[index];
return(cellSpan);
}
else
{
if (m_cellSpans == null)
{
return(null);
}
var index = GetListIndex(row, column);
if (index >= m_cellSpans.Count)
{
return(null);
}
var cellSpan = m_cellSpans[index];
return(cellSpan);
}
}
protected GridLayoutNode(GridLayoutNode prototype) : base(prototype)
{
if (prototype == null)
{
throw new ArgumentNullException(nameof(prototype));
}
m_rowCount = prototype.m_rowCount;
m_columnCount = prototype.m_columnCount;
m_layoutSites = prototype.m_layoutSites.Clone(this);
m_cellSpans = prototype.m_cellSpans?.Clone();
}
public GridLayoutNode(JToken json) : base(json)
{
if (json == null)
{
throw new ArgumentNullException(nameof(json));
}
m_rowCount = json.Value <int>(JsonNames.RowCount);
m_columnCount = json.Value <int>(JsonNames.ColumnCount);
m_layoutSites = new LayoutSiteList(this, json[JsonNames.LayoutSites]);
var jsonCellSpans = json[JsonNames.CellSpans];
m_cellSpans = jsonCellSpans != null ? new GridLayoutNodeCellSpanList(jsonCellSpans) : null;
}
public GridLayoutNode(int rowCount, int columnCount) : base(PathGeometries.Rectangle)
{
if (rowCount <= 0)
{
throw new ArgumentOutOfRangeException(nameof(rowCount));
}
if (columnCount <= 0)
{
throw new ArgumentOutOfRangeException(nameof(columnCount));
}
m_rowCount = rowCount;
m_columnCount = columnCount;
m_layoutSites = new LayoutSiteList(this);
m_cellSpans = null;
ResizeLists();
}
