public override void Undo(TreemapGenerator oTreemapGenerator)
{
this.AssertValid();
base.Undo(oTreemapGenerator);
oTreemapGenerator.Clear();
oTreemapGenerator.Nodes.Add(this.m_oInnerNode);
}
/// <summary>
/// Undoes this zoom action.
/// </summary>
///
/// <param name="oTreemapGenerator">
/// TreemapGenerator owned by the TreemapControl.
/// </param>
public override void Undo(TreemapGenerator oTreemapGenerator)
{
AssertValid();
base.Undo(oTreemapGenerator);
oTreemapGenerator.Clear();
oTreemapGenerator.Nodes.Add(m_oOriginalTopLevelNode);
}
//*************************************************************************
// Methods
//*************************************************************************
public TreemapPanel(Form parent)
{
//set parent for callback
m_ParentForm = parent;
// Create the treemap drawing engine.
m_TreemapGenerator = new TreemapGenerator();
// We want to do owner drawing, so handle the DrawItem event.
m_TreemapGenerator.DrawItem +=
new TreemapGenerator.TreemapDrawItemEventHandler(DrawItem);
m_Graphics = null;
m_nodes = new ArrayList();
// Setup the treemap
InitTree();
// Avoid flicker while drawing. According to "Windows Forms
// Programming in C#," the following three styles are all required.
this.SetStyle(ControlStyles.DoubleBuffer, true);
this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
this.SetStyle(ControlStyles.UserPaint, true);
// Force the panel to be redrawn when it's resized.
this.ResizeRedraw = true;
}
/// <summary>
/// Undoes this zoom action.
/// </summary>
///
/// <param name="oTreemapGenerator">
/// TreemapGenerator owned by the TreemapControl.
/// </param>
///
/// <remarks>
/// This must be overridden in the derived class, which should call this
/// base method first and then repopulate the treemap to complete the undo.
/// </remarks>
public virtual void Undo(TreemapGenerator oTreemapGenerator)
{
AssertValid();
if (m_oParentOfZoomedNode != null)
{
Debug.Assert(oTreemapGenerator.Nodes.Count == 1);
oTreemapGenerator.Nodes[0].PrivateSetParent(m_oParentOfZoomedNode);
}
}
/// <summary>
/// Redoes this zoom action.
/// </summary>
///
/// <param name="oTreemapGenerator">
/// TreemapGenerator owned by the TreemapControl.
/// </param>
///
/// <remarks>
/// This must be overridden in the derived class, which should call this
/// base method first and then repopulate the treemap to complete the
/// reversal.
/// </remarks>
public void Redo(TreemapGenerator oTreemapGenerator)
{
AssertValid();
Nodes nodes = oTreemapGenerator.Nodes;
if (m_oZoomedNode == null)
{
m_oZoomActionHistoryList.RedoOriginalTopLevel(oTreemapGenerator);
return;
}
oTreemapGenerator.Clear();
nodes.Add(m_oZoomedNode);
}
public void Redo(TreemapGenerator oTreemapGenerator)
{
this.AssertValid();
Nodes nodes = oTreemapGenerator.Nodes;
if (this.m_oZoomedNode == null)
{
this.m_oZoomActionHistoryList.RedoOriginalTopLevel(oTreemapGenerator);
}
else
{
oTreemapGenerator.Clear();
nodes.Add(this.m_oZoomedNode);
}
}
/// <summary>
/// Repopulates the treemap with its original top-level nodes.
/// </summary>
///
/// <param name="oTreemapGenerator">
/// TreemapGenerator owned by the TreemapControl.
/// </param>
///
/// <remarks>
/// Do not call this if <see cref="M:Microsoft.Research.CommunityTechnologies.TreemapNoDoc.ZoomActionHistoryList.SetOriginalTopLevelInfo(Microsoft.Research.CommunityTechnologies.Treemap.Node[],System.Single)" /> has not been
/// called.
/// </remarks>
public void RedoOriginalTopLevel(TreemapGenerator oTreemapGenerator)
{
Debug.Assert(oTreemapGenerator != null);
AssertValid();
oTreemapGenerator.Clear();
Nodes nodes = oTreemapGenerator.Nodes;
Debug.Assert(m_aoOriginalTopLevelNodes != null);
Debug.Assert(m_aoOriginalTopLevelNodes.Length > 0);
Debug.Assert(m_fOriginalTopLevelEmptySpaceSizeMetric != float.MinValue);
oTreemapGenerator.BeginUpdate();
Node[] aoOriginalTopLevelNodes = m_aoOriginalTopLevelNodes;
foreach (Node node in aoOriginalTopLevelNodes)
{
nodes.Add(node);
}
nodes.EmptySpace.SizeMetric = m_fOriginalTopLevelEmptySpaceSizeMetric;
oTreemapGenerator.EndUpdate();
}
public void RedoOriginalTopLevel(TreemapGenerator oTreemapGenerator)
{
Debug.Assert(oTreemapGenerator != null);
this.AssertValid();
oTreemapGenerator.Clear();
Nodes nodes = oTreemapGenerator.Nodes;
Debug.Assert(this.m_aoOriginalTopLevelNodes != null);
Debug.Assert(this.m_aoOriginalTopLevelNodes.Length > 0);
Debug.Assert(this.m_fOriginalTopLevelEmptySpaceSizeMetric != -3.40282347E+38f);
oTreemapGenerator.BeginUpdate();
Node[] aoOriginalTopLevelNodes = this.m_aoOriginalTopLevelNodes;
for (int i = 0; i < aoOriginalTopLevelNodes.Length; i++)
{
Node node = aoOriginalTopLevelNodes[i];
nodes.Add(node);
}
nodes.EmptySpace.SizeMetric = this.m_fOriginalTopLevelEmptySpaceSizeMetric;
oTreemapGenerator.EndUpdate();
}
public override void Undo(TreemapGenerator oTreemapGenerator)
{
this.AssertValid();
base.Undo(oTreemapGenerator);
this.m_oZoomActionHistoryList.RedoOriginalTopLevel(oTreemapGenerator);
}
