Class IGeoObjectImpl.Changing

Helper class to wrap any changing of this GeoObject. Usually used in this way:

    using (new Changing(this,...))
    {
        // ... make the change here ...
    }

This will call FireWillChange(GeoObjectChange) before the GeoObject is changed and FireDidChange(GeoObjectChange) after the GeoObject was changed with the appropriate parameters. Changig takes nested changes into account and raises the events only at the outermost level.

Inheritance

System.Object

IGeoObjectImpl.Changing

IGeoObjectImpl.ChangingAttribute

Implements

System.IDisposable

Inherited Members

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: CADability.GeoObject

Assembly: CADability.dll

Syntax

protected class Changing : IDisposable

Constructors

Changing(IGeoObjectImpl)

Changing geometrical aspects of an GeoObject. A Clone() of this GeoObject is made and saved and CopyGeometry(IGeoObject) might be called with that clone later when there is an undo.

Declaration

public Changing(IGeoObjectImpl geoObject)

Parameters

Type	Name	Description
IGeoObjectImpl	geoObject	the GeoObject

Changing(IGeoObjectImpl, Boolean)

Changing geometrical aspects of an GeoObject. A Clone() of this GeoObject is made and saved and CopyGeometry(IGeoObject) might be called with that clone later when there is an undo.

Declaration

public Changing(IGeoObjectImpl geoObject, bool UndoNecessary)

Parameters

Type	Name	Description
IGeoObjectImpl	geoObject	the GeoObject
System.Boolean	UndoNecessary	true, if undo is required

Changing(IGeoObjectImpl, Boolean, Boolean)

Changing geometrical aspects of an GeoObject. A Clone() of this GeoObject is made and saved and CopyGeometry(IGeoObject) might be called with that clone later when there is an undo.

Declaration

public Changing(IGeoObjectImpl geoObject, bool UndoNecessary, bool onlyAttribute)

Parameters

Type	Name	Description
IGeoObjectImpl	geoObject	the GeoObject
System.Boolean	UndoNecessary
System.Boolean	onlyAttribute

Changing(IGeoObjectImpl, Boolean, Boolean, String, Object[])

Changing a GeoObject with a specification on how to undo that change. Undo might be performed later vie reflection. So we need the name of the method here and the parameters for that method.

Declaration

public Changing(IGeoObjectImpl geoObject, bool noUndo, bool onlyAttribute, string MethodOrPropertyName, params object[] Parameters)

Parameters

Type	Name	Description
IGeoObjectImpl	geoObject	the GeoObject
System.Boolean	noUndo	true if no undo is required, false otherwise
System.Boolean	onlyAttribute	true if only an attribute is changed not the geometry
System.String	MethodOrPropertyName	name of a public method that might be called later by undo
System.Object[]	Parameters	parameters for the method

Changing(IGeoObjectImpl, String)

Changing a property, that has public get and set methods, and has only one property with this name. On construction the value of that property will be requested by a reflection call to "get_PropertyName"

Declaration

public Changing(IGeoObjectImpl geoObject, string PropertyName)

Parameters

Type	Name	Description
IGeoObjectImpl	geoObject	The GeoObject
System.String	PropertyName	The Name of the property

Changing(IGeoObjectImpl, String, Object[])

Changing a GeoObject with a specification on how to undo that change. Undo might be performed later vie reflection. So we need the name of the method here and the parameters for that method.

Declaration

public Changing(IGeoObjectImpl geoObject, string MethodOrPropertyName, params object[] Parameters)

Parameters

Type	Name	Description
IGeoObjectImpl	geoObject	the GeoObject
System.String	MethodOrPropertyName	name of a public method that might be called later by undo
System.Object[]	Parameters	parameters for the method

Changing(IGeoObjectImpl, Type, String, Object[])

Changing a GeoObject with a specification on how to undo that change. Undo might be performed later vie reflection. So we need the name of the method here and the parameters for that method. The method must be in the given interface.

Declaration

public Changing(IGeoObjectImpl geoObject, Type interfaceForMethod, string MethodOrPropertyName, params object[] Parameters)

Parameters

Type	Name	Description
IGeoObjectImpl	geoObject	the GeoObject
System.Type	interfaceForMethod	the type of the interface which contains the method
System.String	MethodOrPropertyName	name of a public method that might be called later by undo
System.Object[]	Parameters	parameters for the method

Methods

Dispose()

Implements IDisposable.Dispose. Calls FireDidChange(GeoObjectChange) when not inside a nested changing.

Declaration

public virtual void Dispose()

NoUndoNecessary()

Sets NoUndoNecessary to true for the parameter of the call to FireWillChange(GeoObjectChange) and FireDidChange(GeoObjectChange).

Declaration

public void NoUndoNecessary()

Implements

System.IDisposable