BehaviorService Classe
Definizione
Importante
Alcune informazioni sono relative alla release non definitiva del prodotto, che potrebbe subire modifiche significative prima della release definitiva. Microsoft non riconosce alcuna garanzia, espressa o implicita, in merito alle informazioni qui fornite.
Gestisce l'interfaccia utente nella finestra di progettazione. La classe non può essere ereditata.
public ref class BehaviorService sealed : IDisposablepublic sealed class BehaviorService : IDisposabletype BehaviorService = class
interface IDisposablePublic NotInheritable Class BehaviorService
Implements IDisposable- Ereditarietà
-
BehaviorService
- Implementazioni
Esempio
Nell'esempio di codice seguente viene illustrato come creare una classe basata personalizzata Behavior che risponda ai clic dell'utente.
#using <System.dll>
#using <System.Data.dll>
#using <System.Drawing.dll>
#using <System.Windows.Forms.dll>
#using <System.Design.dll>
using namespace System;
using namespace System::Collections::Generic;
using namespace System::ComponentModel;
using namespace System::Data;
using namespace System::Drawing;
using namespace System::Windows::Forms;
using namespace System::Windows::Forms::Design;
using namespace System::Windows::Forms::Design::Behavior;
using namespace System::Text;
namespace BehaviorServiceSample
{
public ref class UserControl1 : public UserControl
{
private:
System::ComponentModel::IContainer^ components;
public:
UserControl1()
{
InitializeComponent();
}
protected:
~UserControl1()
{
if (components != nullptr)
{
delete components;
}
}
private:
void InitializeComponent()
{
this->Name = "UserControl1";
this->Size = System::Drawing::Size(170, 156);
}
};
public ref class Form1 : public Form
{
private:
UserControl1^ userControl;
public:
Form1()
{
InitializeComponent();
}
private:
System::ComponentModel::IContainer^ components;
protected:
~Form1()
{
if (components != nullptr)
{
delete components;
}
}
private:
void InitializeComponent()
{
this->userControl = gcnew UserControl1();
this->SuspendLayout();
this->userControl->Location = System::Drawing::Point(12,13);
this->userControl->Name = "userControl";
this->userControl->Size = System::Drawing::Size(143,110);
this->userControl->TabIndex = 0;
this->AutoScaleBaseSize = System::Drawing::Size(5, 13);
this->ClientSize = System::Drawing::Size(184, 153);
this->Controls->Add(this->userControl);
this->Name = "Form1";
this->Text = "Form1";
this->ResumeLayout(false);
}
};
// By providing our own behavior we can do something
// interesting when the user clicks or manipulates our glyph.
public ref class DemoBehavior : public Behavior
{
public:
bool OnMouseUp(Glyph^ g, MouseButtons^ button)
{
MessageBox::Show("Hey, you clicked the mouse here");
// indicating we processed this event.
return true;
}
};
public ref class DemoGlyph : public Glyph
{
Control^ control;
BehaviorService^ behavior;
public:
DemoGlyph(BehaviorService^ behavior, Control^ control):
Glyph(gcnew BehaviorServiceSample::DemoBehavior)
{
this->behavior = behavior;
this->control = control;
}
public:
virtual property Rectangle Bounds
{
Rectangle get() override
{
// Create a glyph that is 10x10 and sitting
// in the middle of the control. Glyph coordinates
// are in adorner window coordinates, so we must map
// using the behavior service.
Point edge = behavior->ControlToAdornerWindow(control);
Size size = control->Size;
Point center = Point(edge.X + (size.Width / 2),
edge.Y + (size.Height / 2));
Rectangle bounds = Rectangle(center.X - 5,
center.Y - 5, 10, 10);
return bounds;
}
}
public:
virtual Cursor^ GetHitTest(Point p) override
{
// GetHitTest is called to see if the point is
// within this glyph. This gives us a chance to decide
// what cursor to show. Returning null from here means
// the mouse pointer is not currently inside of the
// glyph. Returning a valid cursor here indicates the
// pointer is inside the glyph, and also enables our
// Behavior property as the active behavior.
if (Bounds.Contains(p))
{
return Cursors::Hand;
}
return nullptr;
}
public:
virtual void Paint(PaintEventArgs^ pe) override
{
// Draw our glyph. Our's is simple: a blue ellipse.
pe->Graphics->FillEllipse(Brushes::Blue, Bounds);
}
};
public ref class DemoDesigner : public ControlDesigner
{
private:
Adorner^ demoAdorner;
protected:
~DemoDesigner()
{
if (demoAdorner != nullptr)
{
System::Windows::Forms::Design::Behavior::BehaviorService^ b =
this->BehaviorService;
if (b != nullptr)
{
b->Adorners->Remove(demoAdorner);
}
}
}
public:
virtual void Initialize(IComponent^ component) override
{
__super::Initialize(component);
// Get a hold of the behavior service and add our own set
// of glyphs. Glyphs live on adorners.
demoAdorner = gcnew Adorner();
BehaviorService->Adorners->Add(demoAdorner);
demoAdorner->Glyphs->Add
(gcnew DemoGlyph(BehaviorService, Control));
}
};
}
[STAThread]
int main()
{
Application::EnableVisualStyles();
Application::Run(gcnew BehaviorServiceSample::Form1());
}
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Windows.Forms;
using System.Text;
using System.Windows.Forms.Design;
using System.Windows.Forms.Design.Behavior;
namespace BehaviorServiceSample
{
class Form1 : Form
{
private UserControl1 userControl;
public Form1()
{
InitializeComponent();
}
private System.ComponentModel.IContainer components = null;
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
private void InitializeComponent()
{
this.userControl = new BehaviorServiceSample.UserControl1();
this.SuspendLayout();
this.userControl.Location = new System.Drawing.Point(12, 13);
this.userControl.Name = "userControl";
this.userControl.Size = new System.Drawing.Size(143, 110);
this.userControl.TabIndex = 0;
this.ClientSize = new System.Drawing.Size(184, 153);
this.Controls.Add(this.userControl);
this.Name = "Form1";
this.Text = "Form1";
this.ResumeLayout(false);
}
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.Run(new Form1());
}
}
[Designer(typeof(MyDesigner))]
public class UserControl1 : UserControl
{
private System.ComponentModel.IContainer components = null;
public UserControl1()
{
InitializeComponent();
}
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
private void InitializeComponent()
{
this.Name = "UserControl1";
this.Size = new System.Drawing.Size(170, 156);
}
}
class MyDesigner : ControlDesigner
{
private Adorner myAdorner;
protected override void Dispose(bool disposing)
{
if (disposing && myAdorner != null)
{
BehaviorService b = BehaviorService;
if (b != null)
{
b.Adorners.Remove(myAdorner);
}
}
}
public override void Initialize(IComponent component)
{
base.Initialize(component);
// Add the custom set of glyphs using the BehaviorService.
// Glyphs live on adornders.
myAdorner = new Adorner();
BehaviorService.Adorners.Add(myAdorner);
myAdorner.Glyphs.Add(new MyGlyph(BehaviorService, Control));
}
}
class MyGlyph : Glyph
{
Control control;
BehaviorService behaviorSvc;
public MyGlyph(BehaviorService behaviorSvc, Control control) :
base(new MyBehavior())
{
this.behaviorSvc = behaviorSvc;
this.control = control;
}
public override Rectangle Bounds
{
get
{
// Create a glyph that is 10x10 and sitting
// in the middle of the control. Glyph coordinates
// are in adorner window coordinates, so we must map
// using the behavior service.
Point edge = behaviorSvc.ControlToAdornerWindow(control);
Size size = control.Size;
Point center = new Point(edge.X + (size.Width / 2),
edge.Y + (size.Height / 2));
Rectangle bounds = new Rectangle(
center.X - 5,
center.Y - 5,
10,
10);
return bounds;
}
}
public override Cursor GetHitTest(Point p)
{
// GetHitTest is called to see if the point is
// within this glyph. This gives us a chance to decide
// what cursor to show. Returning null from here means
// the mouse pointer is not currently inside of the glyph.
// Returning a valid cursor here indicates the pointer is
// inside the glyph, and also enables our Behavior property
// as the active behavior.
if (Bounds.Contains(p))
{
return Cursors.Hand;
}
return null;
}
public override void Paint(PaintEventArgs pe)
{
// Draw our glyph. It is simply a blue ellipse.
pe.Graphics.FillEllipse(Brushes.Blue, Bounds);
}
// By providing our own behavior we can do something interesting
// when the user clicks or manipulates our glyph.
class MyBehavior : Behavior
{
public override bool OnMouseUp(Glyph g, MouseButtons button)
{
MessageBox.Show("Hey, you clicked the mouse here");
return true; // indicating we processed this event.
}
}
}
}
Imports System.Collections.Generic
Imports System.ComponentModel
Imports System.Data
Imports System.Drawing
Imports System.Windows.Forms
Imports System.Text
Imports System.Windows.Forms.Design
Imports System.Windows.Forms.Design.Behavior
Namespace BehaviorServiceSample
Public Class Form1
Inherits System.Windows.Forms.Form
Private userControl As UserControl1
Private components As System.ComponentModel.IContainer = Nothing
Public Sub New()
MyBase.New()
InitializeComponent()
End Sub
Protected Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing AndAlso (components IsNot Nothing) Then
components.Dispose()
End If
MyBase.Dispose(disposing)
End Sub
Private Sub InitializeComponent()
Me.userControl = New UserControl1()
Me.SuspendLayout()
Me.userControl.Location = New System.Drawing.Point(12, 13)
Me.userControl.Name = "userControl"
Me.userControl.Size = New System.Drawing.Size(143, 110)
Me.userControl.TabIndex = 0
Me.ClientSize = New System.Drawing.Size(184, 153)
Me.Controls.Add(userControl)
Me.Name = "Form1"
Me.Text = "Form1"
Me.ResumeLayout(False)
End Sub
<STAThread()> _
Shared Sub Main()
Application.EnableVisualStyles()
Application.Run(New Form1())
End Sub
End Class
<Designer(GetType(MyDesigner))> _
Public Class UserControl1
Inherits UserControl
Private components As System.ComponentModel.IContainer = Nothing
Public Sub New()
InitializeComponent()
End Sub
Protected Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing AndAlso (components IsNot Nothing) Then
components.Dispose()
End If
MyBase.Dispose(disposing)
End Sub
Private Sub InitializeComponent()
Me.Name = "UserControl1"
Me.Size = New System.Drawing.Size(170, 156)
End Sub
End Class
Class MyDesigner
Inherits ControlDesigner
Private myAdorner As Adorner
Protected Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing AndAlso (myAdorner IsNot Nothing) Then
Dim b As System.Windows.Forms.Design.Behavior.BehaviorService _
= BehaviorService
If (b IsNot Nothing) Then
b.Adorners.Remove(myAdorner)
End If
End If
End Sub
Public Overrides Sub Initialize(ByVal component As IComponent)
MyBase.Initialize(component)
' Add the custom set of glyphs using the BehaviorService.
' Glyphs live on adornders.
myAdorner = New Adorner()
BehaviorService.Adorners.Add(myAdorner)
myAdorner.Glyphs.Add(New MyGlyph(BehaviorService, Control))
End Sub
End Class
Class MyGlyph
Inherits Glyph
Private control As Control
Private behaviorSvc As _
System.Windows.Forms.Design.Behavior.BehaviorService
Public Sub New(ByVal behaviorSvc As _
System.Windows.Forms.Design.Behavior.BehaviorService, _
ByVal control As Control)
MyBase.New(New MyBehavior())
Me.behaviorSvc = behaviorSvc
Me.control = control
End Sub
Public Overrides ReadOnly Property Bounds() As Rectangle
Get
' Create a glyph that is 10x10 and sitting
' in the middle of the control. Glyph coordinates
' are in adorner window coordinates, so we must map
' using the behavior service.
Dim edge As Point = behaviorSvc.ControlToAdornerWindow(control)
Dim size As Size = control.Size
Dim center As New Point(edge.X + size.Width / 2, edge.Y + _
size.Height / 2)
Dim bounds1 As New Rectangle(center.X - 5, center.Y - 5, 10, 10)
Return bounds1
End Get
End Property
Public Overrides Function GetHitTest(ByVal p As Point) As Cursor
' GetHitTest is called to see if the point is
' within this glyph. This gives us a chance to decide
' what cursor to show. Returning null from here means
' the mouse pointer is not currently inside of the glyph.
' Returning a valid cursor here indicates the pointer is
' inside the glyph,and also enables our Behavior property
' as the active behavior.
If Bounds.Contains(p) Then
Return Cursors.Hand
End If
Return Nothing
End Function
Public Overrides Sub Paint(ByVal pe As PaintEventArgs)
' Draw our glyph. It is simply a blue ellipse.
pe.Graphics.FillEllipse(Brushes.Blue, Bounds)
End Sub
' By providing our own behavior we can do something interesting
' when the user clicks or manipulates our glyph.
Class MyBehavior
Inherits System.Windows.Forms.Design.Behavior.Behavior
Public Overrides Function OnMouseUp(ByVal g As Glyph, _
ByVal button As MouseButtons) As Boolean
MessageBox.Show("Hey, you clicked the mouse here")
Return True
' indicating we processed this event.
End Function 'OnMouseUp
End Class
End Class
End Namespace
Commenti
BehaviorService Quando viene creato, aggiunge una finestra trasparente sulla cornice della finestra di progettazione. Può BehaviorService quindi usare questa finestra per eseguire il rendering degli elementi dell'interfaccia utente, denominati Glyph oggetti, nonché intercettare tutti i messaggi del mouse. In questo modo, può controllare il BehaviorService comportamento della finestra di progettazione.
La BehaviorService classe supporta uno stack di comportamenti in cui Behavior è possibile eseguire il push degli oggetti. Quando un messaggio viene intercettato tramite la finestra trasparente, BehaviorService può inviare il messaggio all'oggetto Behavior nella parte superiore dello stack. In questo modo vengono abilitate diverse modalità dell'interfaccia utente a seconda dell'oggetto attualmente sottoposto Behaviora push. Viene BehaviorService utilizzato per eseguire il rendering di tutti gli Glyph oggetti, ad esempio bordi di selezione, handle di ridimensionamento e smart tag. Controlla BehaviorService anche molti comportamenti in fase di progettazione, ad esempio l'uso di snapline, il trascinamento e la selezione.
Per altre informazioni, vedere Cenni preliminari sul servizio comportamento.
Proprietà
| Adorners |
Ottiene l'oggetto BehaviorServiceAdornerCollection. |
| AdornerWindowGraphics |
Ottiene l'oggetto Graphics per la finestra di strutturazione. |
| CurrentBehavior |
Ottiene l'oggetto Behavior all'inizio dello stack di comportamenti senza rimuoverlo. |
Metodi
| AdornerWindowPointToScreen(Point) |
Converte un oggetto Point nella finestra di strutturazione in coordinate dello schermo. |
| AdornerWindowToScreen() |
Ottiene la posizione della finestra di strumenti decorativi, in coordinate dello schermo. |
| ControlRectInAdornerWindow(Control) |
Restituisce l'oggetto Rectangle delimitatore di un oggetto Control. |
| ControlToAdornerWindow(Control) |
Restituisce la posizione di un oggetto Control convertita in coordinate della finestra Adorner. |
| Dispose() |
Rilascia tutte le risorse usate da BehaviorService. |
| Equals(Object) |
Determina se l'oggetto specificato è uguale all'oggetto corrente. (Ereditato da Object) |
| GetHashCode() |
Funge da funzione hash predefinita. (Ereditato da Object) |
| GetNextBehavior(Behavior) |
Restituisce l'oggetto Behavior immediatamente dopo l'oggetto Behavior nello stack dei comportamenti. |
| GetType() |
Ottiene l'oggetto Type dell'istanza corrente. (Ereditato da Object) |
| Invalidate() |
Invalida la finestra di strutturazione di BehaviorService. |
| Invalidate(Rectangle) |
Invalida, all'interno della finestra di strutturazione, l'area specificata di BehaviorService. |
| Invalidate(Region) |
Invalida, all'interno della finestra di strutturazione, l'area specificata di BehaviorService. |
| MapAdornerWindowPoint(IntPtr, Point) |
Converte un punto espresso nel sistema di coordinate di un handle nelle coordinate della finestra di strumenti decorativi. |
| MemberwiseClone() |
Crea una copia superficiale dell'oggetto Object corrente. (Ereditato da Object) |
| PopBehavior(Behavior) |
Rimuove e restituisce l'oggetto Behavior all'inizio dello stack. |
| PushBehavior(Behavior) |
Inserisce un oggetto Behavior nello stack di comportamenti. |
| PushCaptureBehavior(Behavior) |
Inserisce un oggetto Behavior nello stack di comportamenti e assegna il mouse capture al comportamento. |
| ScreenToAdornerWindow(Point) |
Converte un punto espresso in coordinate dello schermo in coordinate della finestra di strutturazione di BehaviorService. |
| SyncSelection() |
Sincronizza tutti i glifi di selezione. |
| ToString() |
Restituisce una stringa che rappresenta l'oggetto corrente. (Ereditato da Object) |
Eventi
| BeginDrag |
Si verifica quando BehaviorService avvia un'operazione di trascinamento e rilascio. |
| EndDrag |
Si verifica quando BehaviorService completa un'operazione di trascinamento. |
| Synchronize |
Si verifica quando è necessario aggiornare la selezione corrente. |