Esempio di utilizzo di EditPoint

Nell'esempio riportato di seguito viene creato un oggetto TextDocument, viene aggiunto del testo all'oggetto creato, quindi vengono illustrate alcune funzionalità dell'oggetto EditPoint.

Esempio

Descrizione

Queste funzioni sono in base uno per gli offset del carattere, mentre IVsTextView e interfacce simili sono in base zero. EditPoint è in base uno perché è progettato per supportare l'automazione VB.

Per eseguire questo esempio, creare un progetto Componente aggiuntivo Visual Studio e nella procedura guidata specificare che si desidera creare una voce del menu Strumenti. Quando si compila e si esegue il componente aggiuntivo, scegliere il comando appropriato dal menu Strumenti per eseguire il codice.

Codice

[Visual Basic]

Public Sub Exec(ByVal commandName As String, ByVal executeOption As vsCommandExecOption, ByRef varIn As Object, ByRef varOut As Object, ByRef handled As Boolean) Implements IDTCommandTarget.Exec
    handled = False
    If executeOption = vsCommandExecOption.vsCommandExecOptionDoDefault Then
        If commandName = "EditPoint.Connect.EditPoint" Then
            EditPointExample1(CType(_applicationObject, DTE))
            handled = True
            Exit Sub
        End If
    End If
End Sub
Sub EditPointExample1(ByVal dte As DTE)
    Dim objTextDoc As TextDocument
    Dim objEditPt As EditPoint, iCtr As Integer

    ' Create a new text file.
    applicationObject.ItemOperations.NewFile("General\Text File")

    ' Get a handle to the new document and create an EditPoint.
    objTextDoc = applicationObject.ActiveDocument.Object("TextDocument")
    objEditPt = objTextDoc.StartPoint.CreateEditPoint

    ' Insert ten lines of text.
    For iCtr = 1 To 10
        objEditPt.Insert("This is a test." & Chr(13))
    Next iCtr

    ' Replace the eighth word on the third line with a new word.
    objEditPt.StartOfDocument()
    objEditPt.LineDown(3)
    objEditPt.WordRight(3)
    objEditPt.Delete(4)
    objEditPt.Insert("raid")

    ' Indent a line.
    objEditPt.LineDown(2)
    objEditPt.StartOfLine()
    objEditPt.Indent()

    ' Set some bookmarks.
    objEditPt.LineDown(1)
    ' Set the first bookmark.
    objEditPt.SetBookmark()
    ' Set the second bookmark on the next line.
    objEditPt.LineDown(1)
    objEditPt.SetBookmark()
    ' Go back to the first bookmark.
    objEditPt.PreviousBookmark()
    ' Add some text there.
    objEditPt.Insert("BOOKMARK 1: ")
    ' Do the same thing at the next bookmark.
    objEditPt.NextBookmark()
    objEditPt.Insert("BOOKMARK 2: ")

    ' Print the current line and character offset in the buffer. 
    MsgBox("Line and offset: " & objEditPt.Line, _
    objEditPt.LineCharOffset())

    ' Capitalize the third word of the second line.
    objEditPt.StartOfDocument()
    objEditPt.LineDown(2)
    objEditPt.WordRight(3)
    objEditPt.ChangeCase(4, vsCaseOptions.vsCaseOptionsCapitalize)

    ' Remove the spaces between the words.
    objEditPt.DeleteWhitespace(vsWhitespaceOptions. _
    vsWhitespaceOptionsHorizontal)
End Sub

Using System.Windows.Forms;

public void EditPointExample1( DTE dte ) 
{ 
    TextDocument objTextDoc = null; 
    EditPoint objEditPt = null; int iCtr = 0; 

    // Create a new text file.
    applicationObject.ItemOperations.NewFile( @"General\Text File",
 "", "{00000000-0000-0000-0000-000000000000}" ); 

    // Get a handle to the new document and create an EditPoint.
    objTextDoc = ( ( EnvDTE.TextDocument )(
 applicationObject.ActiveDocument.Object( "TextDocument" ) ) ); 
    objEditPt = objTextDoc.StartPoint.CreateEditPoint(); 

    // Insert ten lines of text.
    for ( iCtr=1; iCtr<=10; iCtr++ ) 
    { 
        objEditPt.Insert( "This is a test." + "\n"); 
    } 

    // Replace the eighth word on the third line with a new word.
    objEditPt.StartOfDocument(); 
    objEditPt.LineDown( 3 ); 
    objEditPt.WordRight( 3 ); 
    objEditPt.Delete( 4 ); 
    objEditPt.Insert( "raid" ); 
    
    // Indent a line.
    objEditPt.LineDown( 2 ); 
    objEditPt.StartOfLine(); 
    objEditPt.Indent( null, 1 ); 

    // Set some bookmarks.
    objEditPt.LineDown( 1 ); 
    // Set the first bookmark.
    objEditPt.SetBookmark(); 
    // Set the second bookmark on the next line.
    objEditPt.LineDown( 1 ); 
    objEditPt.SetBookmark(); 
    // Go back to the first bookmark.
    objEditPt.PreviousBookmark(); 
    // Add some text there.
    objEditPt.Insert( "BOOKMARK 1: " ); 
    // Do the same thing at the next bookmark.
    objEditPt.NextBookmark(); 
    objEditPt.Insert( "BOOKMARK 2: " ); 
    // Print the current line and character offset in the buffer. 
    MessageBox.Show( "Line and offset: " + objEditPt.Line); 

    // Capitalize the third word of the second line.
   objEditPt.StartOfDocument(); 
    objEditPt.LineDown( 2 ); 
    objEditPt.WordRight( 3 ); 
    objEditPt.ChangeCase( 4, vsCaseOptions.vsCaseOptionsCapitalize ); 

    // Remove the spaces between the words.
    objEditPt.DeleteWhitespace( vsWhitespaceOptions.vsWhitespaceOptionsHorizontal ); 
}

Vedere anche

Riferimenti

Last updated on 2011-08-11