IncrementalHitTester.AddPoints Metode
Definisi
Penting
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Menambahkan titik ke IncrementalHitTester.
Overload
AddPoints(IEnumerable<Point>) |
Menambahkan titik ke IncrementalHitTester. |
AddPoints(StylusPointCollection) |
Menambahkan objek yang ditentukan StylusPoint ke IncrementalHitTester. |
AddPoints(IEnumerable<Point>)
Menambahkan titik ke IncrementalHitTester.
public:
void AddPoints(System::Collections::Generic::IEnumerable<System::Windows::Point> ^ points);
public void AddPoints (System.Collections.Generic.IEnumerable<System.Windows.Point> points);
member this.AddPoints : seq<System.Windows.Point> -> unit
Public Sub AddPoints (points As IEnumerable(Of Point))
Parameter
- points
- IEnumerable<Point>
Array jenis Point untuk ditambahkan ke IncrementalHitTester.
Contoh
Contoh berikut menunjukkan cara menambahkan poin ke IncrementalHitTester saat pengguna memasukkan data dengan stylus. Contohnya mencakup StrokeHit penanganan aktivitas yang menghapus bagian Stroke dari interseksi pengguna. Untuk membuat kontrol yang memungkinkan pengguna menghapus tinta, lihat Cara: Menghapus Tinta pada Kontrol Kustom.
// Prepare to collect stylus packets. Get the
// IncrementalHitTester from the InkPresenter's
// StrokeCollection and subscribe to its StrokeHitChanged event.
protected override void OnStylusDown(StylusDownEventArgs e)
{
base.OnStylusDown(e);
EllipseStylusShape eraserTip = new EllipseStylusShape(3, 3, 0);
eraseTester =
presenter.Strokes.GetIncrementalStrokeHitTester(eraserTip);
eraseTester.StrokeHit += new StrokeHitEventHandler(eraseTester_StrokeHit);
eraseTester.AddPoints(e.GetStylusPoints(this));
}
// Collect the StylusPackets as the stylus moves.
protected override void OnStylusMove(StylusEventArgs e)
{
if (eraseTester.IsValid)
{
eraseTester.AddPoints(e.GetStylusPoints(this));
}
}
// Unsubscribe from the StrokeHitChanged event when the
// user lifts the stylus.
protected override void OnStylusUp(StylusEventArgs e)
{
eraseTester.AddPoints(e.GetStylusPoints(this));
eraseTester.StrokeHit -= new
StrokeHitEventHandler(eraseTester_StrokeHit);
eraseTester.EndHitTesting();
}
// When the stylus intersects a stroke, erase that part of
// the stroke. When the stylus dissects a stoke, the
// Stroke.Erase method returns a StrokeCollection that contains
// the two new strokes.
void eraseTester_StrokeHit(object sender,
StrokeHitEventArgs args)
{
StrokeCollection eraseResult =
args.GetPointEraseResults();
StrokeCollection strokesToReplace = new StrokeCollection();
strokesToReplace.Add(args.HitStroke);
// Replace the old stroke with the new one.
if (eraseResult.Count > 0)
{
presenter.Strokes.Replace(strokesToReplace, eraseResult);
}
else
{
presenter.Strokes.Remove(strokesToReplace);
}
}
' Prepare to collect stylus packets. Get the
' IncrementalHitTester from the InkPresenter's
' StrokeCollection and subscribe to its StrokeHitChanged event.
Protected Overrides Sub OnStylusDown(ByVal e As StylusDownEventArgs)
MyBase.OnStylusDown(e)
Dim eraserTip As New EllipseStylusShape(3, 3, 0)
eraseTester = presenter.Strokes.GetIncrementalStrokeHitTester(eraserTip)
AddHandler eraseTester.StrokeHit, _
AddressOf eraseTester_StrokeHit
eraseTester.AddPoints(e.GetStylusPoints(Me))
End Sub
' Collect the StylusPackets as the stylus moves.
Protected Overrides Sub OnStylusMove(ByVal e As StylusEventArgs)
If eraseTester.IsValid Then
eraseTester.AddPoints(e.GetStylusPoints(Me))
End If
End Sub
' Unsubscribe from the StrokeHitChanged event when the
' user lifts the stylus.
Protected Overrides Sub OnStylusUp(ByVal e As StylusEventArgs)
eraseTester.AddPoints(e.GetStylusPoints(Me))
RemoveHandler eraseTester.StrokeHit, _
AddressOf eraseTester_StrokeHit
eraseTester.EndHitTesting()
End Sub
' When the stylus intersects a stroke, erase that part of
' the stroke. When the stylus dissects a stoke, the
' Stroke.Erase method returns a StrokeCollection that contains
' the two new strokes.
Private Sub eraseTester_StrokeHit(ByVal sender As Object, _
ByVal args As StrokeHitEventArgs)
Dim eraseResult As StrokeCollection = _
args.GetPointEraseResults()
Dim strokesToReplace As New StrokeCollection()
strokesToReplace.Add(args.HitStroke)
' Replace the old stroke with the new one.
If eraseResult.Count > 0 Then
presenter.Strokes.Replace(strokesToReplace, eraseResult)
Else
presenter.Strokes.Remove(strokesToReplace)
End If
End Sub
Berlaku untuk
AddPoints(StylusPointCollection)
Menambahkan objek yang ditentukan StylusPoint ke IncrementalHitTester.
public:
void AddPoints(System::Windows::Input::StylusPointCollection ^ stylusPoints);
public void AddPoints (System.Windows.Input.StylusPointCollection stylusPoints);
member this.AddPoints : System.Windows.Input.StylusPointCollection -> unit
Public Sub AddPoints (stylusPoints As StylusPointCollection)
Parameter
- stylusPoints
- StylusPointCollection
Kumpulan StylusPoint objek untuk ditambahkan ke IncrementalHitTester.
Contoh
Contoh berikut menunjukkan cara menambahkan poin ke IncrementalStrokeHitTester saat pengguna memasukkan data dengan stylus. Contohnya mencakup StrokeHit penanganan aktivitas yang menghapus bagian Stroke dari interseksi pengguna. Untuk membuat kontrol yang memungkinkan pengguna menghapus tinta, lihat Cara: Menghapus Tinta pada Kontrol Kustom.
// Prepare to collect stylus packets. Get the
// IncrementalHitTester from the InkPresenter's
// StrokeCollection and subscribe to its StrokeHitChanged event.
protected override void OnStylusDown(StylusDownEventArgs e)
{
base.OnStylusDown(e);
EllipseStylusShape eraserTip = new EllipseStylusShape(3, 3, 0);
eraseTester =
presenter.Strokes.GetIncrementalStrokeHitTester(eraserTip);
eraseTester.StrokeHit += new StrokeHitEventHandler(eraseTester_StrokeHit);
eraseTester.AddPoints(e.GetStylusPoints(this));
}
// Collect the StylusPackets as the stylus moves.
protected override void OnStylusMove(StylusEventArgs e)
{
if (eraseTester.IsValid)
{
eraseTester.AddPoints(e.GetStylusPoints(this));
}
}
// Unsubscribe from the StrokeHitChanged event when the
// user lifts the stylus.
protected override void OnStylusUp(StylusEventArgs e)
{
eraseTester.AddPoints(e.GetStylusPoints(this));
eraseTester.StrokeHit -= new
StrokeHitEventHandler(eraseTester_StrokeHit);
eraseTester.EndHitTesting();
}
// When the stylus intersects a stroke, erase that part of
// the stroke. When the stylus dissects a stoke, the
// Stroke.Erase method returns a StrokeCollection that contains
// the two new strokes.
void eraseTester_StrokeHit(object sender,
StrokeHitEventArgs args)
{
StrokeCollection eraseResult =
args.GetPointEraseResults();
StrokeCollection strokesToReplace = new StrokeCollection();
strokesToReplace.Add(args.HitStroke);
// Replace the old stroke with the new one.
if (eraseResult.Count > 0)
{
presenter.Strokes.Replace(strokesToReplace, eraseResult);
}
else
{
presenter.Strokes.Remove(strokesToReplace);
}
}
' Prepare to collect stylus packets. Get the
' IncrementalHitTester from the InkPresenter's
' StrokeCollection and subscribe to its StrokeHitChanged event.
Protected Overrides Sub OnStylusDown(ByVal e As StylusDownEventArgs)
MyBase.OnStylusDown(e)
Dim eraserTip As New EllipseStylusShape(3, 3, 0)
eraseTester = presenter.Strokes.GetIncrementalStrokeHitTester(eraserTip)
AddHandler eraseTester.StrokeHit, _
AddressOf eraseTester_StrokeHit
eraseTester.AddPoints(e.GetStylusPoints(Me))
End Sub
' Collect the StylusPackets as the stylus moves.
Protected Overrides Sub OnStylusMove(ByVal e As StylusEventArgs)
If eraseTester.IsValid Then
eraseTester.AddPoints(e.GetStylusPoints(Me))
End If
End Sub
' Unsubscribe from the StrokeHitChanged event when the
' user lifts the stylus.
Protected Overrides Sub OnStylusUp(ByVal e As StylusEventArgs)
eraseTester.AddPoints(e.GetStylusPoints(Me))
RemoveHandler eraseTester.StrokeHit, _
AddressOf eraseTester_StrokeHit
eraseTester.EndHitTesting()
End Sub
' When the stylus intersects a stroke, erase that part of
' the stroke. When the stylus dissects a stoke, the
' Stroke.Erase method returns a StrokeCollection that contains
' the two new strokes.
Private Sub eraseTester_StrokeHit(ByVal sender As Object, _
ByVal args As StrokeHitEventArgs)
Dim eraseResult As StrokeCollection = _
args.GetPointEraseResults()
Dim strokesToReplace As New StrokeCollection()
strokesToReplace.Add(args.HitStroke)
' Replace the old stroke with the new one.
If eraseResult.Count > 0 Then
presenter.Strokes.Replace(strokesToReplace, eraseResult)
Else
presenter.Strokes.Remove(strokesToReplace)
End If
End Sub
Berlaku untuk
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