DesignerGlyph Classe

Definição

public ref class DesignerGlyph abstract

public abstract class DesignerGlyph

[System.Obsolete("The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")]
public abstract class DesignerGlyph

type DesignerGlyph = class

[<System.Obsolete("The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")>]
type DesignerGlyph = class

Public MustInherit Class DesignerGlyph

Herança

Object

DesignerGlyph

Derivado

System.Workflow.ComponentModel.Design.CommentGlyph

System.Workflow.ComponentModel.Design.ConfigErrorGlyph

System.Workflow.ComponentModel.Design.LockedActivityGlyph

System.Workflow.ComponentModel.Design.ReadOnlyActivityGlyph

System.Workflow.ComponentModel.Design.SelectionGlyph

Mais…

Atributos

ObsoleteAttribute

Exemplos

O exemplo de código a seguir demonstra uma classe de glifo que deriva da DesignerGlyph classe . O código substitui os GetBounds métodos e OnPaint .

Este exemplo de código faz parte do Exemplo do SDK do Monitor de Fluxo de Trabalho do arquivo DesignerGlyphProvider.cs. Para obter mais informações, consulte Monitor de Fluxo de Trabalho.

//Define a glyph to show an activity is executing, i.e. not 'closed'
internal sealed class ExecutingGlyph : DesignerGlyph
{
    internal ExecutingGlyph()
    {
    }

    public override Rectangle GetBounds(ActivityDesigner designer, bool activated)
    {
        Rectangle imageBounds = Rectangle.Empty;
        Image image = Resources.Executing;
        if (image != null)
        {
            Size glyphSize = WorkflowTheme.CurrentTheme.AmbientTheme.GlyphSize;
            imageBounds.Location = new Point(designer.Bounds.Right - glyphSize.Width / 2, designer.Bounds.Top - glyphSize.Height / 2);
            imageBounds.Size = glyphSize;
        }
        return imageBounds;
    }

    protected override void OnPaint(Graphics graphics, bool activated, AmbientTheme ambientTheme, ActivityDesigner designer)
    {
        Bitmap bitmap = Resources.Executing;
        bitmap.MakeTransparent(Color.FromArgb(0, 255, 255));
        if (bitmap != null)
            graphics.DrawImage(bitmap, GetBounds(designer, activated), new Rectangle(Point.Empty, bitmap.Size), GraphicsUnit.Pixel);
    }
}

'Define a glyph to show an activity is executing, i.e. not 'closed'
Friend Class ExecutingGlyph
    Inherits DesignerGlyph
    Public Overrides Function GetBounds(ByVal designer As System.Workflow.ComponentModel.Design.ActivityDesigner, ByVal activated As Boolean) As System.Drawing.Rectangle
        Dim imageBounds As Rectangle = Rectangle.Empty
        Dim image As Image = AppResources.Executing
        If Not image Is Nothing Then
            Dim glyphSize As Size = WorkflowTheme.CurrentTheme.AmbientTheme.GlyphSize
            imageBounds.Location = New Point(designer.Bounds.Right - glyphSize.Width / 2, designer.Bounds.Top - glyphSize.Height / 2)
            imageBounds.Size = glyphSize
        End If
        Return imageBounds
    End Function

    Protected Overrides Sub OnPaint(ByVal graphics As System.Drawing.Graphics, ByVal activated As Boolean, ByVal ambientTheme As System.Workflow.ComponentModel.Design.AmbientTheme, ByVal designer As System.Workflow.ComponentModel.Design.ActivityDesigner)
        Dim bitmap As Bitmap = AppResources.Executing
        bitmap.MakeTransparent(Color.FromArgb(0, 255, 255))

        If Not bitmap Is Nothing Then
            graphics.DrawImage(bitmap, GetBounds(designer, activated), New Rectangle(Point.Empty, bitmap.Size), GraphicsUnit.Pixel)
        End If
    End Sub
End Class

Comentários

A DesignerGlyph classe é a classe base para todos os glifos de designer usados em uma superfície de design de fluxo de trabalho.

Os desenvolvedores do designer de atividade podem usar classes que herdam de DesignerGlyph para desenhar glifos personalizados na superfície de um ActivityDesigner. DesignerGlyph as classes desenham esses glifos na ordem Z de nível superior, que coloca o glifo personalizado visualmente sobre todos os outros glifos no designer com base no Priority valor do glifo personalizado. Um valor mais baixo para a Priority propriedade indica uma prioridade mais alta e, portanto, desenha o glifo na posição de ordem Z mais alta em um designer de atividade.

Notas aos Implementadores

Ao herdar de DesignerGlyph, você deve substituir os seguintes membros: OnPaint(Graphics, Boolean, AmbientTheme, ActivityDesigner).

Construtores

Campos

Propriedades

Métodos

Aplica-se a

Confira também

• Monitor de Fluxo de Trabalho