public void ZoomOut()
{
this.AssertValid();
this.VerifyIsZoomable("ZoomOut");
if (!this.CanZoomOut())
{
throw new InvalidOperationException("TreemapControl.ZoomOut: Can't zoom out. Check the CanZoomOut property first.");
}
Nodes nodes = this.Nodes;
Debug.Assert(nodes.Count == 1);
Node node = nodes[0];
Node[] array = null;
float sizeMetric = -3.40282347E+38f;
ZoomAction oState = null;
Debug.Assert(this.m_oZoomActionHistoryList.HasCurrentState);
ZoomAction peekCurrentState = this.m_oZoomActionHistoryList.PeekCurrentState;
if (peekCurrentState.ParentOfZoomedNode == null)
{
array = this.m_oZoomActionHistoryList.OriginalTopLevelNodes;
sizeMetric = this.m_oZoomActionHistoryList.OriginalTopLevelEmptySpaceSizeMetric;
oState = new ZoomedFromOneTopLevelNodeAction(this.m_oZoomActionHistoryList, null, node);
}
else
{
Node parentOfZoomedNode = peekCurrentState.ParentOfZoomedNode;
array = new Node[]
{
parentOfZoomedNode
};
sizeMetric = 0f;
Debug.Assert(parentOfZoomedNode != null);
node.PrivateSetParent(parentOfZoomedNode);
oState = new ZoomedFromInnerNodeAction(this.m_oZoomActionHistoryList, parentOfZoomedNode, node);
}
this.m_oZoomActionHistoryList.InsertState(oState);
Node selectedNode = this.SelectedNode;
this.m_oTreemapGenerator.Clear();
this.BeginUpdate();
Node[] array2 = array;
for (int i = 0; i < array2.Length; i++)
{
Node node2 = array2[i];
nodes.Add(node2);
}
nodes.EmptySpace.SizeMetric = sizeMetric;
this.EndUpdate();
if (selectedNode != null)
{
this.FireSelectedNodeChanged();
}
}
public void ZoomIn(Node node)
{
Debug.Assert(node != null);
this.AssertValid();
this.VerifyIsZoomable("ZoomIn");
if (!this.CanZoomIn(node))
{
throw new InvalidOperationException("TreemapControl.ZoomIn: Can't zoom in to node. Check the CanZoomIn property first.");
}
Nodes nodes = this.Nodes;
Debug.Assert(nodes.Count > 0);
ZoomAction oState = null;
if (nodes.Count > 1 || !this.m_oZoomActionHistoryList.HasCurrentState)
{
oState = new ZoomedFromTopLevelAction(this.m_oZoomActionHistoryList, node, nodes);
}
else
{
Debug.Assert(nodes.Count == 1);
Debug.Assert(this.m_oZoomActionHistoryList.HasCurrentState);
Node node2 = nodes[0];
ZoomAction peekCurrentState = this.m_oZoomActionHistoryList.PeekCurrentState;
if (peekCurrentState.ParentOfZoomedNode == null)
{
if (this.m_oZoomActionHistoryList.OriginalTopLevelNodes.Length > 1)
{
oState = new ZoomedFromOneTopLevelNodeAction(this.m_oZoomActionHistoryList, node, node2);
}
else
{
oState = new ZoomedFromTopLevelAction(this.m_oZoomActionHistoryList, node, nodes);
}
}
else
{
Debug.Assert(peekCurrentState.ParentOfZoomedNode != null);
node2.PrivateSetParent(peekCurrentState.ParentOfZoomedNode);
oState = new ZoomedFromInnerNodeAction(this.m_oZoomActionHistoryList, node, node2);
}
}
this.m_oZoomActionHistoryList.InsertState(oState);
Node selectedNode = this.SelectedNode;
this.m_oTreemapGenerator.Clear();
nodes.Add(node);
if (selectedNode != null)
{
this.FireSelectedNodeChanged();
}
}
