org.openstreetmap.josm.gui.dialogs

Class LayerListDialog.LayerListModel

java.lang.Object

javax.swing.table.AbstractTableModel

org.openstreetmap.josm.gui.dialogs.LayerListDialog.LayerListModel

All Implemented Interfaces:

java.beans.PropertyChangeListener, java.io.Serializable, java.util.EventListener, javax.swing.table.TableModel, ReorderableModel<Layer>, LayerManager.LayerChangeListener, MainLayerManager.ActiveLayerChangeListener, ReorderableTableModel<Layer>

Enclosing class:

LayerListDialog

public static final class LayerListDialog.LayerListModel
extends javax.swing.table.AbstractTableModel
implements LayerManager.LayerChangeListener, MainLayerManager.ActiveLayerChangeListener, java.beans.PropertyChangeListener, ReorderableTableModel<Layer>

The layer list model. The model manages a list of layers and provides methods for moving layers up and down, for toggling their visibility, and for activating a layer. The model is a TableModel and it provides a ListSelectionModel. It expects to be configured with a DefaultListSelectionModel. The selection model is used to update the selection state of views depending on messages sent to the model. The model manages a list of LayerListDialog.LayerListModelListener which are mainly notified if the model requires views to make a specific list entry visible. It also listens to PropertyChangeEvents of every Layer it manages, in particular to the properties Layer.VISIBLE_PROP and Layer.NAME_PROP.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
private LayerListDialog.LayerList	layerList
private MainLayerManager	layerManager
private java.util.concurrent.CopyOnWriteArrayList<LayerListDialog.LayerListModelListener>	listeners
private javax.swing.DefaultListSelectionModel	selectionModel manages list selection state

Fields inherited from class javax.swing.table.AbstractTableModel

listenerList

Constructor Summary

Constructors

Constructor and Description
LayerListModel(MainLayerManager layerManager, javax.swing.DefaultListSelectionModel selectionModel) constructor

Method Summary

Modifier and Type	Method and Description
void	activeOrEditLayerChanged(MainLayerManager.ActiveLayerChangeEvent e) Called whenever the active or edit layer changed.
void	addLayerListModelListener(LayerListDialog.LayerListModelListener listener) Adds a listener to this model
boolean	doMove(int delta, int... selectedRows) Performs the move operation, without any check nor selection handling.
private void	ensureActiveSelected() Ensures that at least one layer is selected in the layer dialog
private void	ensureSelectedIsVisible() Make sure the first of the selected layers is visible in the views of this model.
private void	fireMakeVisible(int index, Layer layer) Fires a make visible event to listeners
private void	fireRefresh() Fires a refresh event to listeners of this model
private Layer	getActiveLayer() Replies the active layer.
int	getColumnCount()
Layer	getFirstLayer() Replies the first layer.
Layer	getLayer(int index) Replies the layer at position index
MainLayerManager	getLayerManager() The layer manager this model is for.
java.util.List<Layer>	getLayers() Replies the list of layers currently managed by MapView.
java.util.List<Layer>	getPossibleMergeTargets(Layer source) Replies a list of layers which are possible merge targets for source
int	getRowCount()
java.util.List<Layer>	getSelectedLayers() Replies the list of currently selected layers.
java.util.List<java.lang.Integer>	getSelectedRows() Replies a the list of indices of the selected rows.
javax.swing.DefaultListSelectionModel	getSelectionModel() Returns the selection model.
Layer	getValue(int index) Get object value at given index.
java.lang.Object	getValueAt(int row, int col)
boolean	isCellEditable(int row, int col)
void	layerAdded(LayerManager.LayerAddEvent e) Notifies this listener that a layer has been added.
void	layerOrderChanged(LayerManager.LayerOrderChangeEvent e) Notifies this listener that the order of layers was changed.
void	layerRemoving(LayerManager.LayerRemoveEvent e) Notifies this listener that a alayer was just removed.
boolean	move(int delta, int... selectedRows) Move selected rows by any number of positions, if possible.
private void	onAddLayer(Layer layer) Invoked when a layer managed by MapView is added
private void	onRemoveLayer(Layer layer) Invoked if a layer managed by MapView is removed
void	populate() Populates the model with the current layers managed by MapView.
void	propertyChange(java.beans.PropertyChangeEvent evt)
void	removeLayerListModelListener(LayerListDialog.LayerListModelListener listener) removes a listener from this model
(package private) void	setLayerList(LayerListDialog.LayerList layerList)
void	setSelectedLayer(Layer layer) Marks layer as selected layer.
Layer	setValue(int index, Layer value) Set object value at given index.
void	setValueAt(java.lang.Object value, int row, int col)

Methods inherited from class javax.swing.table.AbstractTableModel

addTableModelListener, findColumn, fireTableCellUpdated, fireTableChanged, fireTableDataChanged, fireTableRowsDeleted, fireTableRowsInserted, fireTableRowsUpdated, fireTableStructureChanged, getColumnClass, getColumnName, getListeners, getTableModelListeners, removeTableModelListener

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.openstreetmap.josm.gui.util.ReorderableTableModel

canMove, canMoveDown, canMoveDown, canMoveUp, canMoveUp, getSelectedIndices, moveDown, moveDown, moveUp, moveUp

Methods inherited from interface javax.swing.table.TableModel

addTableModelListener, getColumnClass, getColumnName, removeTableModelListener

Methods inherited from interface org.openstreetmap.josm.data.ReorderableModel

canMove, canMoveDown, canMoveUp

Field Detail

selectionModel

private final javax.swing.DefaultListSelectionModel selectionModel

manages list selection state

listeners

private final java.util.concurrent.CopyOnWriteArrayList<LayerListDialog.LayerListModelListener> listeners

layerList

private LayerListDialog.LayerList layerList

layerManager

private final MainLayerManager layerManager

Constructor Detail

LayerListModel

LayerListModel(MainLayerManager layerManager,
               javax.swing.DefaultListSelectionModel selectionModel)

constructor

Parameters:

layerManager - The layer manager to use for the list.

selectionModel - the list selection model

Method Detail

setLayerList

void setLayerList(LayerListDialog.LayerList layerList)

getLayerManager

public MainLayerManager getLayerManager()

The layer manager this model is for.

Returns:

The layer manager.

addLayerListModelListener

public void addLayerListModelListener(LayerListDialog.LayerListModelListener listener)

Adds a listener to this model

Parameters:

listener - the listener

removeLayerListModelListener

public void removeLayerListModelListener(LayerListDialog.LayerListModelListener listener)

removes a listener from this model

Parameters:

listener - the listener

fireMakeVisible

private void fireMakeVisible(int index,
                             Layer layer)

Fires a make visible event to listeners

Parameters:

index - the index of the row to make visible

layer - the layer at this index

See Also:

LayerListDialog.LayerListModelListener.makeVisible(int, Layer)

fireRefresh

private void fireRefresh()

Fires a refresh event to listeners of this model

See Also:

LayerListDialog.LayerListModelListener.refresh()

populate

public void populate()

Populates the model with the current layers managed by MapView.

setSelectedLayer

public void setSelectedLayer(Layer layer)

Marks layer as selected layer. Ignored, if layer is null.

Parameters:

layer - the layer.

getSelectedLayers

public java.util.List<Layer> getSelectedLayers()

Replies the list of currently selected layers. Never null, but may be empty.

Returns:

the list of currently selected layers. Never null, but may be empty.

getSelectedRows

public java.util.List<java.lang.Integer> getSelectedRows()

Replies a the list of indices of the selected rows. Never null, but may be empty.

Returns:

the list of indices of the selected rows. Never null, but may be empty.

onRemoveLayer

private void onRemoveLayer(Layer layer)

Invoked if a layer managed by MapView is removed

Parameters:

layer - the layer which is removed

onAddLayer

private void onAddLayer(Layer layer)

Invoked when a layer managed by MapView is added

Parameters:

layer - the layer

getFirstLayer

public Layer getFirstLayer()

Replies the first layer. Null if no layers are present

Returns:

the first layer. Null if no layers are present

getLayer

public Layer getLayer(int index)

Replies the layer at position index

Parameters:

index - the index

Returns:

the layer at position index. Null, if index is out of range.

getSelectionModel

public javax.swing.DefaultListSelectionModel getSelectionModel()

Description copied from interface: ReorderableTableModel

Returns the selection model.

Specified by:

getSelectionModel in interface ReorderableTableModel<Layer>

Returns:

the selection model (never null)

getValue

public Layer getValue(int index)

Description copied from interface: ReorderableModel

Get object value at given index.

Specified by:

getValue in interface ReorderableModel<Layer>

Parameters:

index - index

Returns:

object value at given index

setValue

public Layer setValue(int index,
                      Layer value)

Description copied from interface: ReorderableModel

Set object value at given index.

Specified by:

setValue in interface ReorderableModel<Layer>

Parameters:

index - index

value - new value

Returns:

the value previously at the specified position

doMove

public boolean doMove(int delta,
                      int... selectedRows)

Description copied from interface: ReorderableModel

Performs the move operation, without any check nor selection handling.

Specified by:

doMove in interface ReorderableModel<Layer>

Parameters:

delta - negative or positive delta

selectedRows - rows to move

Returns:

true if rows have been moved

move

public boolean move(int delta,
                    int... selectedRows)

Description copied from interface: ReorderableTableModel

Move selected rows by any number of positions, if possible.

Specified by:

move in interface ReorderableTableModel<Layer>

Parameters:

delta - negative or positive delta

selectedRows - rows to move

Returns:

true if the move was performed

See Also:

ReorderableTableModel.canMove(int)

ensureSelectedIsVisible

private void ensureSelectedIsVisible()

Make sure the first of the selected layers is visible in the views of this model.

getPossibleMergeTargets

public java.util.List<Layer> getPossibleMergeTargets(Layer source)

Replies a list of layers which are possible merge targets for source

Parameters:

source - the source layer

Returns:

a list of layers which are possible merge targets for source. Never null, but can be empty.

getLayers

public java.util.List<Layer> getLayers()

Replies the list of layers currently managed by MapView. Never null, but can be empty.

Returns:

the list of layers currently managed by MapView. Never null, but can be empty.

ensureActiveSelected

private void ensureActiveSelected()

Ensures that at least one layer is selected in the layer dialog

getActiveLayer

private Layer getActiveLayer()

Replies the active layer. null, if no active layer is available

Returns:

the active layer. null, if no active layer is available

getRowCount

public int getRowCount()

Specified by:

getRowCount in interface javax.swing.table.TableModel

getColumnCount

public int getColumnCount()

Specified by:

getColumnCount in interface javax.swing.table.TableModel

getValueAt

public java.lang.Object getValueAt(int row,
                                   int col)

Specified by:

getValueAt in interface javax.swing.table.TableModel

isCellEditable

public boolean isCellEditable(int row,
                              int col)

Specified by:

isCellEditable in interface javax.swing.table.TableModel

Overrides:

isCellEditable in class javax.swing.table.AbstractTableModel

setValueAt

public void setValueAt(java.lang.Object value,
                       int row,
                       int col)

Specified by:

setValueAt in interface javax.swing.table.TableModel

Overrides:

setValueAt in class javax.swing.table.AbstractTableModel

activeOrEditLayerChanged

public void activeOrEditLayerChanged(MainLayerManager.ActiveLayerChangeEvent e)

Description copied from interface: MainLayerManager.ActiveLayerChangeListener

Called whenever the active or edit layer changed.

You can be sure that this layer is still contained in this set.

Listeners are called in the EDT thread and you can manipulate the layer manager in the current thread.

Specified by:

activeOrEditLayerChanged in interface MainLayerManager.ActiveLayerChangeListener

Parameters:

e - The change event.

layerAdded

public void layerAdded(LayerManager.LayerAddEvent e)

Description copied from interface: LayerManager.LayerChangeListener

Notifies this listener that a layer has been added.

Listeners are called in the EDT thread. You should not do blocking or long-running tasks in this method.

Specified by:

layerAdded in interface LayerManager.LayerChangeListener

Parameters:

e - The new added layer event

layerRemoving

public void layerRemoving(LayerManager.LayerRemoveEvent e)

Description copied from interface: LayerManager.LayerChangeListener

Notifies this listener that a alayer was just removed.

Listeners are called in the EDT thread after the layer was removed. Use LayerManager.LayerRemoveEvent.scheduleRemoval(Collection) to remove more layers. You should not do blocking or long-running tasks in this method.

Specified by:

layerRemoving in interface LayerManager.LayerChangeListener

Parameters:

e - The layer to be removed (as event)

layerOrderChanged

public void layerOrderChanged(LayerManager.LayerOrderChangeEvent e)

Description copied from interface: LayerManager.LayerChangeListener

Notifies this listener that the order of layers was changed.

Listeners are called in the EDT thread. You should not do blocking or long-running tasks in this method.

Specified by:

layerOrderChanged in interface LayerManager.LayerChangeListener

Parameters:

e - The order change event.

propertyChange

public void propertyChange(java.beans.PropertyChangeEvent evt)

Specified by:

propertyChange in interface java.beans.PropertyChangeListener