InkAnalyzerBase.ContextNodeMovingToPositionBase イベント

2008-10-28

インクアナライザが ContextNodeBase を、その親ノードの SubNodes コレクション内の新しい位置に移動する前に発生します。

名前空間 : System.Windows.Ink.AnalysisCore
アセンブリ : IACore (IACore.dll 内)

構文

'宣言
Public Event ContextNodeMovingToPositionBase As ContextNodeMovingToPositionBaseEventHandler
'使用
Dim instance As InkAnalyzerBase
Dim handler As ContextNodeMovingToPositionBaseEventHandler

AddHandler instance.ContextNodeMovingToPositionBase, handler

public event ContextNodeMovingToPositionBaseEventHandler ContextNodeMovingToPositionBase

public:
 event ContextNodeMovingToPositionBaseEventHandler^ ContextNodeMovingToPositionBase {
    void add (ContextNodeMovingToPositionBaseEventHandler^ value);
    void remove (ContextNodeMovingToPositionBaseEventHandler^ value);
}

/** @event */
public void add_ContextNodeMovingToPositionBase (ContextNodeMovingToPositionBaseEventHandler value)
/** @event */
public void remove_ContextNodeMovingToPositionBase (ContextNodeMovingToPositionBaseEventHandler value)

JScript では、イベントは使用できません。

解説

このイベントは、アプリケーションが InkAnalyzerBase のデータ構造と同期されている独自のデータ構造を保持している場合に使用します。このイベントは、インク分析の調整段階で、または ContextNodeBase をその親ノードの SubNodes コレクション内で移動するインクアナライザメソッドへの応答として発生します。

アプリケーションデータと InkAnalyzerBase の同期の詳細については、「Data Proxy with Ink Analysis」を参照してください。

例

次の例では、データプロキシイベントハンドラを InkAnalyzerBase、baseInkAnalyzer にアタッチする AttachDataProxyEventHandlers メソッドを定義します。

Private Sub AttachDataProxyEventHandlers()
    ' If the document model supports on demand data proxy, then add an
    ' event handler for the PopulateContextNodeBase event. This event is raised
    ' when the InkAnalyzerBase accesses a partially populated ContextNodeBase
    ' created by the document model.
    If Me.baseDocumentModel.SupportsOnDemandDataProxy Then
        AddHandler Me.baseInkAnalyzer.PopulateContextNodeBase, AddressOf Me.PopulateContextNodeBase
    End If

    ' Add the other data proxy related event handlers. These events are raised
    ' by the InkAnalyzer to communicate parsing results to the document model.
    AddHandler Me.baseInkAnalyzer.ContextNodeCreatedBase, _
        AddressOf Me.AddContextNodeBase
    AddHandler Me.baseInkAnalyzer.ContextNodeDeletingBase, _
        AddressOf Me.RemoveContextNodeBase
    AddHandler Me.baseInkAnalyzer.ContextNodeLinkAddingBase, _
        AddressOf Me.AddContextNodeLinkBase
    AddHandler Me.baseInkAnalyzer.ContextNodeLinkDeletingBase, _
        AddressOf Me.RemoveContextNodeLinkBase
    AddHandler Me.baseInkAnalyzer.ContextNodeMovingToPositionBase, _
        AddressOf Me.MoveContextNodeBaseToPosition
    AddHandler Me.baseInkAnalyzer.ContextNodePropertiesUpdatedBase, _
        AddressOf Me.UpdateContextNodeBaseProperties
    AddHandler Me.baseInkAnalyzer.ContextNodeReparentingBase, _
        AddressOf Me.ReparentContextNodeBase
    AddHandler Me.baseInkAnalyzer.InkAnalyzerStateChangingBase, _
        AddressOf Me.InkAnalyzerBase_StateChanging
    AddHandler Me.baseInkAnalyzer.StrokesReparentedBase, _
        AddressOf Me.ReparentStroke
    AddHandler Me.baseInkAnalyzer.IntermediateResultsUpdatedBase, _
        AddressOf Me.BaseResultsAvailable
    AddHandler Me.baseInkAnalyzer.ResultsUpdatedBase, _
        AddressOf Me.BaseResultsAvailable

End Sub 'AttachDataProxyEventHandlers

        private void AttachDataProxyEventHandlers()
        {
            // If the document model supports on demand data proxy, then add an
            // event handler for the PopulateContextNodeBase event. This event is raised
            // when the InkAnalyzerBase accesses a partially populated ContextNodeBase
            // created by the document model.
            if (this.baseDocumentModel.SupportsOnDemandDataProxy)
            {
                this.baseInkAnalyzer.PopulateContextNodeBase +=
                    new System.Windows.Ink.AnalysisCore.PopulateContextNodeBaseEventHandler(
                        this.PopulateContextNodeBase);
            }

            // Add the other data proxy related event handlers. These events are raised
            // by the InkAnalyzer to communicate parsing results to the document model.
            this.baseInkAnalyzer.ContextNodeCreatedBase +=
                new System.Windows.Ink.AnalysisCore.ContextNodeCreatedBaseEventHandler(
                    this.AddContextNodeBase);
            this.baseInkAnalyzer.ContextNodeDeletingBase +=
                new System.Windows.Ink.AnalysisCore.ContextNodeDeletingBaseEventHandler(
                    this.RemoveContextNodeBase);
            this.baseInkAnalyzer.ContextNodeLinkAddingBase +=
                new System.Windows.Ink.AnalysisCore.ContextNodeLinkAddingBaseEventHandler(
                    this.AddContextNodeLinkBase);
            this.baseInkAnalyzer.ContextNodeLinkDeletingBase +=
                new System.Windows.Ink.AnalysisCore.ContextNodeLinkDeletingBaseEventHandler(
                    this.RemoveContextNodeLinkBase);
            this.baseInkAnalyzer.ContextNodeMovingToPositionBase +=
                new System.Windows.Ink.AnalysisCore.ContextNodeMovingToPositionBaseEventHandler(
                    this.MoveContextNodeBaseToPosition);
            this.baseInkAnalyzer.ContextNodePropertiesUpdatedBase +=
                new System.Windows.Ink.AnalysisCore.ContextNodePropertiesUpdatedBaseEventHandler(
                    this.UpdateContextNodeBaseProperties);
            this.baseInkAnalyzer.ContextNodeReparentingBase +=
                new System.Windows.Ink.AnalysisCore.ContextNodeReparentingBaseEventHandler(
                    this.ReparentContextNodeBase);
            this.baseInkAnalyzer.InkAnalyzerStateChangingBase +=
                new System.Windows.Ink.AnalysisCore.InkAnalyzerStateChangingBaseEventHandler(
                    this.InkAnalyzerBase_StateChanging);
            this.baseInkAnalyzer.StrokesReparentedBase +=
                new System.Windows.Ink.AnalysisCore.StrokesReparentedBaseEventHandler(
                    this.ReparentStroke);
            this.baseInkAnalyzer.IntermediateResultsUpdatedBase +=
                new System.Windows.Ink.AnalysisCore.ResultsUpdatedBaseEventHandler(
                    this.BaseResultsAvailable);
            this.baseInkAnalyzer.ResultsUpdatedBase +=
                new System.Windows.Ink.AnalysisCore.ResultsUpdatedBaseEventHandler(
                    this.BaseResultsAvailable);
        }

次の例では、ContextNodeMovingToPositionBase イベントを処理する MoveContextNodeBaseToPosition メソッドを定義します。イベント情報が、ドキュメントモデルオブジェクト baseDocumentModel に渡されます。

この例では、ドキュメントモデルを定義したり、ドキュメントモデルが渡された情報を処理する方法を示したりはしません。

''' <summary>
''' Handles the InkAnalyzerBase.ContextNodeMovingToPositionBase event.
''' </summary>
''' <param name="sender">The source of the event.</param>
''' <param name="e">The event data.</param>
Private Sub MoveContextNodeBaseToPosition( _
    ByVal sender As Object, _
    ByVal e As System.Windows.Ink.AnalysisCore.ContextNodeMovingToPositionBaseEventArgs)

    Me.baseDocumentModel.MoveNode(e.SubNodeToMove, e.NewIndex)

End Sub 'MoveContextNodeBaseToPosition

        /// <summary>
        /// Handles the InkAnalyzerBase.ContextNodeMovingToPositionBase event.
        /// </summary>
        /// <param name="sender">The source of the event.</param>
        /// <param name="e">The event data.</param>
        private void MoveContextNodeBaseToPosition(
            object sender,
            System.Windows.Ink.AnalysisCore.ContextNodeMovingToPositionBaseEventArgs e)
        {
            this.baseDocumentModel.MoveNode(e.SubNodeToMove, e.NewIndex);
        }