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();
}
}
protected virtual void OnZoom(float zoomInput)
{
// Copy event to avoid race scenarios
ZoomAction handler = Zoomed;
if (handler != null)
{
handler(zoomInput);
}
}
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();
}
}
public PlotControl()
{
// InitializeComponent();
DoubleBuffered = true;
Model = new PlotModel();
panAction = new PanAction(this);
zoomAction = new ZoomAction(this);
sliderAction = new SliderAction(this);
MouseActions = new List<MouseAction>();
MouseActions.Add(panAction);
MouseActions.Add(zoomAction);
MouseActions.Add(sliderAction);
}
public PlotControl()
{
// InitializeComponent();
DoubleBuffered = true;
Model = new PlotModel();
panAction = new PanAction(this);
zoomAction = new ZoomAction(this);
sliderAction = new SliderAction(this);
MouseActions = new List <MouseAction>();
MouseActions.Add(panAction);
MouseActions.Add(zoomAction);
MouseActions.Add(sliderAction);
}
public bool CanZoomOut()
{
this.AssertValid();
this.VerifyIsZoomable("CanZoomOut");
bool result;
if (!this.m_oZoomActionHistoryList.HasCurrentState)
{
result = false;
}
else
{
ZoomAction peekCurrentState = this.m_oZoomActionHistoryList.PeekCurrentState;
result = peekCurrentState.CanZoomOutFromZoomedNode();
}
return(result);
}
public void MoveForward()
{
this.AssertValid();
this.VerifyIsZoomable("MoveForward");
if (!this.CanMoveForward())
{
throw new InvalidOperationException("TreemapControl.MoveForward: Can't move forward. Check the CanMoveForward property first.");
}
Debug.Assert(this.m_oZoomActionHistoryList.HasNextState);
ZoomAction zoomAction = (ZoomAction)this.m_oZoomActionHistoryList.NextState;
Node selectedNode = this.SelectedNode;
zoomAction.Redo(this.m_oTreemapGenerator);
if (selectedNode != null)
{
this.FireSelectedNodeChanged();
}
}
public void MoveBack()
{
this.AssertValid();
this.VerifyIsZoomable("MoveBack");
if (!this.CanMoveBack())
{
throw new InvalidOperationException("TreemapControl.MoveBack: Can't move back. Check the CanMoveBack property first.");
}
Debug.Assert(this.m_oZoomActionHistoryList.HasCurrentState);
ZoomAction currentState = this.m_oZoomActionHistoryList.CurrentState;
Node selectedNode = this.SelectedNode;
currentState.Undo(this.m_oTreemapGenerator);
if (selectedNode != null)
{
this.FireSelectedNodeChanged();
}
}
public virtual void Compose(Display <TData> display)
{
display.HitSize = 6;
display.GripSize = 4;
this.Clipper = () => display.Clipper;
this.Viewport = () => display.Viewport;
this.Camera = () => display.Viewport.Camera;
this.Renderer = () => display.BackendRenderer;
this.DeviceCursor = () => display.CursorHandler;
display.ClipReceiver.Clipper = display.Clipper;
display.ClipReceiver.Renderer = this.Renderer;
display.ClipReceiver.Viewport = this.Viewport;
display.DataLayer.Data = () => display.Data;
display.DataLayer.Camera = this.Camera;
display.DataLayer.Renderer = () => display.DataRenderer;
display.Viewport.GetDataOrigin = this.DataOrigin;
display.Viewport.GetDataSize = this.DataSize;
display.ActionDispatcher.Add(display.DataLayer);
display.ActionDispatcher.Add(display.ClipReceiver);
var zoomAction = new ZoomAction();
zoomAction.Viewport = this.Viewport;
display.ActionDispatcher.Add(zoomAction);
var scroll = new MouseScrollAction();
scroll.Viewport = this.Viewport;
scroll.Enabled = false;
display.MouseScrollAction = scroll;
display.ActionDispatcher.Add(scroll);
}