com.luciad.view.lightspeed.editor

LuciadLightspeedClass TLsp2DEditableShapeEditor

java.lang.Object

com.luciad.view.lightspeed.editor.ALspEditor

com.luciad.view.lightspeed.editor.TLsp2DEditableShapeEditor

All Implemented Interfaces:

ILspEditor

public class TLsp2DEditableShapeEditor
extends ALspEditor

Enables visual editing of ILcd2DEditableShape objects in an ILspView. This editor acts as a very basic editor for any shape that doesn't implement anything more descriptive than ILcd2DEditableShape.

Handles

The editable shape editor defines the following edit handles for an editable shape:

• Object translation handle: allows the user to translate the shape. This handle generates MOVE operations, with a xy constraint, without any additional properties.

Editing

Based on the TLspEditOperation, generated by an edit handle (see description of handles above), this editor performs different edit operations on the associated shape. The images below illustrate the effect of the different handles. In each image the gray color represents the previous state of the object and the red color represents the edited object:

• Object translation handle
  

Creation

This editor does not support shape creation. For shape creation, refer to any of the more concrete editors available.

Since:

2012.0

Constructor Summary

Constructors

Constructor and Description
TLsp2DEditableShapeEditor() Creates a new TLsp2DEditableShapeEditor.

Method Summary

Modifier and Type	Method and Description
boolean	canEdit(TLspEditContext aContext) Returns true if super returns true and the given object is an instance of ILcd2DEditableShape.
protected ALspEditHandle	createObjectTranslationHandle(ILcd2DEditableShape aShape, TLspEditContext aContext) Creates an edit handle that allows the user to translate the given shape.
protected TLspEditOperationResult	editImpl(TLspEditOperation aOperation, ELspInteractionStatus aInteractionStatus, TLspEditContext aContext) Called by the edit method to edit the given object based on the given edit operation.
ALspEditHandle	getCreateHandle(TLspEditContext aContext) Returns a handle that is used to create the given object.
List<ALspEditHandle>	getEditHandles(TLspEditContext aContext) Returns a set of handles for editing the given object.

Methods inherited from class com.luciad.view.lightspeed.editor.ALspEditor

canCopyGeometry, canPerformOperation, copyGeometrySFCT, edit, fireUndoableHappened

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TLsp2DEditableShapeEditor

public TLsp2DEditableShapeEditor()

Creates a new TLsp2DEditableShapeEditor. This constructor does not initialize any state.

Method Detail

canEdit

public boolean canEdit(TLspEditContext aContext)

Returns true if super returns true and the given object is an instance of ILcd2DEditableShape.

Specified by:

canEdit in interface ILspEditor

Overrides:

canEdit in class ALspEditor

Parameters:

aContext - provides context information to the editor

Returns:

true if the above conditions are met, false otherwise.

editImpl

protected TLspEditOperationResult editImpl(TLspEditOperation aOperation,
                                           ELspInteractionStatus aInteractionStatus,
                                           TLspEditContext aContext)

Called by the edit method to edit the given object based on the given edit operation.

Note that this method does not need to lock the model of the object, this already happens in the edit method.

By default, this editor can handle the following operations:

• TLspEditOperationType.MOVE

The move operation will move the object around.

Specified by:

editImpl in class ALspEditor

Parameters:

aOperation - the event that contains the information on how to edit the object

aInteractionStatus -

aContext - the edit context

Returns:

SUCCESS if the above conditions are met, FAILED otherwise.

getEditHandles

public List<ALspEditHandle> getEditHandles(TLspEditContext aContext)

Returns a set of handles for editing the given object.

These handles will be able to generate edit operations, that are passed to the edit method. As a way to communicate with this method, handles will copy their properties to the edit operation properties. By default this method delegates to the createObjectTranslationHandle method. It is added for convenience, so it can easily be overridden. This method returns either a list with a single handle, or an empty list.

Parameters:

aContext - provides context information such as the layer for which the object is being edited

Returns:

the edit handles to edit the given object, or an empty list if it should not be possible to edit the given object.

See Also:

TLspEditController

createObjectTranslationHandle

protected ALspEditHandle createObjectTranslationHandle(ILcd2DEditableShape aShape,
                                                       TLspEditContext aContext)

Creates an edit handle that allows the user to translate the given shape. By default this is a TLspObjectTranslationHandle.

Parameters:

aShape - the point list for which the handle is created

aContext - the current context

Returns:

an edit handle or null if no handle is needed

getCreateHandle

public ALspEditHandle getCreateHandle(TLspEditContext aContext)

Returns a handle that is used to create the given object. The returned handle is used by the controller to initialize the other of the object.

Typically the returned handle is an instance of ALspCreateHandle which is a specialized handle implementation used for creating an object.

By default, this method null.

Parameters:

aContext - provides context information such as the layer for which the object is being created

Returns:

null by default.

See Also:

ALspCreateHandle, TLspCreateController