ContextNodeBase 클래스
업데이트: 2007년 11월
잉크 분석 도중 만들어진 개체 트리의 노드를 나타냅니다.
네임스페이스: System.Windows.Ink.AnalysisCore
어셈블리: IACore(IACore.dll)
구문
‘선언
Public Class ContextNodeBase
‘사용 방법
Dim instance As ContextNodeBase
public class ContextNodeBase
public ref class ContextNodeBase
public class ContextNodeBase
public class ContextNodeBase
예제
이 예제에서는 이름이 theInkAnalyzer인 InkAnalyzerBase 개체를 사용합니다. 해당 개체의 ContextNodeBase 트리를 사용하여 이름이 theTreeView인 System.Windows.Forms.TreeView를 채웁니다. 트리 뷰에서 노드를 선택하면 해당 스트로크가 빨간색으로 나타나도록 설정됩니다. Tag 속성은 트리 노드와 해당 노드가 나타내는 컨텍스트 노드를 서로 매핑하는 데 사용됩니다.
Private Sub BuildTree()
Me.theTreeView.Nodes.Clear()
Dim rootNode As New TreeNode(Me.theInkAnalyzerBase.RootNode.ToString())
Me.theTreeView.Nodes.Add(rootNode)
rootNode.Tag = Me.theInkAnalyzerBase.RootNode
WalkTree(Me.theInkAnalyzerBase.RootNode, rootNode)
End Sub 'BuildTree
Private Sub WalkTree(ByVal parentContextNode As ContextNodeBase, ByVal parentTreeNode As TreeNode)
Dim cNode As ContextNodeBase
For Each cNode In parentContextNode.SubNodes
Dim newTNode As New TreeNode(cNode.ToString())
If cNode.Type = System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.InkWord AndAlso _
cNode.ContainsPropertyData(PropertyGuidsForContextNodesBase.RecognizedString) Then
newTNode.Text = newTNode.Text + _
": " + CType(cNode.GetPropertyData(PropertyGuidsForContextNodesBase.RecognizedString), _
String)
ElseIf cNode.Type = System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.InkDrawing AndAlso _
cNode.ContainsPropertyData(PropertyGuidsForContextNodesBase.ShapeName) Then
Dim shapeName As String = CType(cNode.GetPropertyData(PropertyGuidsForContextNodesBase.ShapeName), _
String)
If shapeName <> "" Then
newTNode.Text = newTNode.Text + ": " + shapeName
End If
End If
WalkTree(cNode, newTNode)
parentTreeNode.Nodes.Add(newTNode)
' Add the context node as a tag of the tree node
newTNode.Tag = cNode
Next cNode
End Sub 'WalkTree
Private Sub theTreeView_AfterSelect(ByVal sender As Object, ByVal e As System.Windows.Forms.TreeViewEventArgs) Handles theTreeView.AfterSelect
' Get the context node
Dim selectedNode As ContextNodeBase = CType(e.Node.Tag, ContextNodeBase)
MarkNodeAsRed(selectedNode)
timeStampLabel.Text = ""
' Show selected results
If Not (selectedNode Is Nothing) Then
If (selectedNode.ContainsPropertyData(PropertyGuidsForContextNodesBase.RecognizedString) AndAlso _
(selectedNode.Type = System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.WritingRegion OrElse _
selectedNode.Type = System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.Paragraph OrElse _
selectedNode.Type = System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.CustomRecognizer OrElse _
selectedNode.Type = System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.Object OrElse _
selectedNode.Type = System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.Line)) Then
selectedResultsTextBox.Text = _
CType(selectedNode.GetPropertyData(PropertyGuidsForContextNodesBase.RecognizedString), String)
ElseIf (selectedNode.Type = System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.InkWord) Then
Dim parentNode As ContextNodeBase = selectedNode.ParentNode
If (parentNode.Type = System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.Line AndAlso _
parentNode.ContainsPropertyData(PropertyGuidsForContextNodesBase.RecognizedString)) Then
' Put parent line's recognized string into the text box
selectedResultsTextBox.Text = _
CType(parentNode.GetPropertyData(PropertyGuidsForContextNodesBase.RecognizedString), String)
' Select the text that corresponds to the ink word
Dim subNodes As New ContextNodeBaseCollection(theInkAnalyzerBase)
subNodes.Add(selectedNode)
Dim start As Integer
Dim length As Integer
theInkAnalyzerBase.GetTextRangeFromNodes(subNodes, start, length)
If (start >= 0 AndAlso length > 0) Then
selectedResultsTextBox.Select(start, length)
End If
End If
ElseIf (selectedNode.Type = System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.InkDrawing AndAlso _
selectedNode.ContainsPropertyData(PropertyGuidsForContextNodesBase.ShapeName)) Then
selectedResultsTextBox.Text = _
CType(selectedNode.GetPropertyData(PropertyGuidsForContextNodesBase.ShapeName), String)
End If
End If
Me.currentNode = selectedNode
End Sub 'theTreeView_AfterSelect
Private Sub MarkNodeAsRed(ByVal selectedNode As ContextNodeBase)
Dim selectedNodeStrokes As Strokes = Nothing
If Not selectedNode Is Nothing Then
selectedNodeStrokes = theInk.CreateStrokes(selectedNode.GetStrokeIds())
End If
' Set all node strokes to black, but this one to red
Dim stroke As Stroke
For Each stroke In Me.theInkCollector.Ink.Strokes
If (Not selectedNodeStrokes Is Nothing And _
selectedNodeStrokes.Contains(stroke)) Then
stroke.DrawingAttributes = New DrawingAttributes(Color.Red)
Else
stroke.DrawingAttributes = Me.theInkCollector.DefaultDrawingAttributes
End If
Next
theNotesPanel.Refresh()
End Sub
private void BuildTree()
{
this.theTreeView.Nodes.Clear();
TreeNode rootNode =
new TreeNode(this.theInkAnalyzerBase.RootNode.ToString());
this.theTreeView.Nodes.Add(rootNode);
rootNode.Tag = this.theInkAnalyzerBase.RootNode;
WalkTree(this.theInkAnalyzerBase.RootNode, rootNode);
}
private void WalkTree(
System.Windows.Ink.AnalysisCore.ContextNodeBase parentContextNode, TreeNode parentTreeNode)
{
foreach (ContextNodeBase cNode in parentContextNode.SubNodes)
{
TreeNode newTNode = new TreeNode(cNode.ToString());
if ((cNode.Type == System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.InkWord) &&
cNode.ContainsPropertyData(PropertyGuidsForContextNodesBase.RecognizedString))
{
// Get the recognized string
newTNode.Text += ": " +
(string)cNode.GetPropertyData(PropertyGuidsForContextNodesBase.RecognizedString);
}
else if ((cNode.Type == System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.InkDrawing) &&
cNode.ContainsPropertyData(PropertyGuidsForContextNodesBase.ShapeName))
{
newTNode.Text += ": " +
(string)cNode.GetPropertyData(PropertyGuidsForContextNodesBase.ShapeName);
}
WalkTree(cNode, newTNode);
parentTreeNode.Nodes.Add(newTNode);
// Add the context node as a tag of the tree node
newTNode.Tag = cNode;
}
}
private void theTreeView_AfterSelect(object sender, System.Windows.Forms.TreeViewEventArgs e)
{
// Get the context node
ContextNodeBase selectedNode = (ContextNodeBase)e.Node.Tag;
MarkNodeAsRed(selectedNode);
timeStampLabel.Text = "";
// Show selected results
if (selectedNode != null)
{
if (selectedNode.ContainsPropertyData(PropertyGuidsForContextNodesBase.RecognizedString) &&
(selectedNode.Type == System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.WritingRegion ||
selectedNode.Type == System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.Paragraph ||
selectedNode.Type == System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.CustomRecognizer ||
selectedNode.Type == System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.Object ||
selectedNode.Type == System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.Line))
{
selectedResultsTextBox.Text =
(string)selectedNode.GetPropertyData(PropertyGuidsForContextNodesBase.RecognizedString);
}
else if (selectedNode.Type == System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.InkWord)
{
ContextNodeBase parentNode = selectedNode.ParentNode;
if (parentNode.Type == System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.Line &&
parentNode.ContainsPropertyData(PropertyGuidsForContextNodesBase.RecognizedString))
{
// Put parent line's recognized string into the text box
selectedResultsTextBox.Text =
(string)parentNode.GetPropertyData(PropertyGuidsForContextNodesBase.RecognizedString);
// Select the text that corresponds to the ink word
ContextNodeBaseCollection subNodes = new ContextNodeBaseCollection(theInkAnalyzerBase);
subNodes.Add(selectedNode);
int start;
int length;
theInkAnalyzerBase.GetTextRangeFromNodes(subNodes, out start, out length);
if (start >= 0 && length > 0)
{
selectedResultsTextBox.Select(start, length);
}
}
}
else if (selectedNode.Type == System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.InkDrawing &&
selectedNode.ContainsPropertyData(PropertyGuidsForContextNodesBase.ShapeName))
{
selectedResultsTextBox.Text =
(string)selectedNode.GetPropertyData(PropertyGuidsForContextNodesBase.ShapeName);
}
if (selectedNode.Type == System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.InkWord)
{
// Show the time stamp
if (selectedNode.ContainsPropertyData(this.timeStampGuid))
{
DateTime timeStamp =
(DateTime)selectedNode.GetPropertyData(this.timeStampGuid);
timeStampLabel.Text = timeStamp.ToShortTimeString();
}
// Snippet to demonstrate GetPropertyDataIds
Guid[] propertyDataIds = selectedNode.GetPropertyDataIds();
// Snippets to demonstrate loading and saving
byte[] data = selectedNode.SavePropertiesData();
if (!selectedNode.LoadPropertiesData(data))
MessageBox.Show("Cannot load property data");
}
}
this.currentNode = selectedNode;
}
private void MarkNodeAsRed(ContextNodeBase selectedNode)
{
Strokes selectedNodeStrokes = null;
if (selectedNode != null)
{
selectedNodeStrokes = theInk.CreateStrokes(selectedNode.GetStrokeIds());
}
// Set all node strokes to black, but this one to red
foreach (Stroke stroke in this.theInkCollector.Ink.Strokes)
{
if (selectedNodeStrokes != null &&
selectedNodeStrokes.Contains(stroke))
stroke.DrawingAttributes = new DrawingAttributes(Color.Red);
else
stroke.DrawingAttributes = this.theInkCollector.DefaultDrawingAttributes;
}
theNotesPanel.Refresh();
}
상속 계층 구조
System.Object
System.Windows.Ink.AnalysisCore.ContextNodeBase
스레드로부터의 안전성
이 형식의 모든 공용 static(Visual Basic의 경우 Shared) 멤버는 스레드로부터 안전합니다. 인터페이스 멤버는 스레드로부터 안전하지 않습니다.
플랫폼
Windows Vista, Windows XP SP2, Windows Server 2003
.NET Framework 및 .NET Compact Framework에서 모든 플랫폼의 전체 버전을 지원하지는 않습니다. 지원되는 버전의 목록을 보려면 .NET Framework 시스템 요구 사항을 참조하십시오.
버전 정보
.NET Framework
3.0에서 지원
참고 항목
참조
System.Windows.Ink.AnalysisCore 네임스페이스
System.Windows.Ink.AnalysisCore.ContextNodeBase