org.gvsig.app.project.documents.view.toc.actions

Class CopyPasteLayersUtils

java.lang.Object

org.gvsig.app.project.documents.view.toc.actions.CopyPasteLayersUtils

public class CopyPasteLayersUtils
extends java.lang.Object

This class provides utility methods to manage the TOC clipboard which will contain one or more layers for copy/cut/paste operations. It is currently implemented using a persistence file where an instance of FLayers is stored.

Method Summary

Modifier and Type	Method and Description
static boolean	addLayers(FLayers clipboard_root, FLayers target_root) Adds layers to target FLayers
static void	clearClipboard()
static PersistentState	getAsFLayersPersistentState(FLayer[] actives, MapContext ctxt) Gets an array of layers as a PersistentState of an instance of FLayers
static FLayers	getClipboardAsFLayers() Returns the content of the clipboard as an instance of FLayers or null if clipboard is empty or does not contain instance of FLayers
static boolean	isClipboardEmpty()
static boolean	removeLayers(FLayer[] actives, MapContext mc) Remosves the layers from the their parent
static void	saveToClipboard(PersistentState st) Stores the given PersistentState to clipboard

Methods inherited from class java.lang.Object

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

Method Detail

clearClipboard

public static void clearClipboard()
                           throws java.io.IOException

Throws:

java.io.IOException

isClipboardEmpty

public static boolean isClipboardEmpty()

getClipboardAsFLayers

public static FLayers getClipboardAsFLayers()
                                     throws PersistenceException

Returns the content of the clipboard as an instance of FLayers or null if clipboard is empty or does not contain instance of FLayers

Returns:

Throws:

PersistenceException

saveToClipboard

public static void saveToClipboard(PersistentState st)
                            throws PersistenceException

Stores the given PersistentState to clipboard

Parameters:

st -

Throws:

PersistenceException

getAsFLayersPersistentState

public static PersistentState getAsFLayersPersistentState(FLayer[] actives,
                                                          MapContext ctxt)
                                                   throws PersistenceException

Gets an array of layers as a PersistentState of an instance of FLayers

Parameters:

actives -

ctxt -

Returns:

Throws:

PersistenceException

removeLayers

public static boolean removeLayers(FLayer[] actives,
                                   MapContext mc)

Remosves the layers from the their parent

Parameters:

actives -

mc -

Returns:

addLayers

public static boolean addLayers(FLayers clipboard_root,
                                FLayers target_root)

Adds layers to target FLayers

Parameters:

clipboard_root -

target_root -

Returns: