Class DnDList<T>
- All Implemented Interfaces:
DragGestureListener
,DragSourceListener
,DropTargetListener
,ImageObserver
,MenuContainer
,Serializable
,EventListener
,Accessible
,Scrollable
- Since:
- 2.6
- Author:
- Michael Bedward
- See Also:
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Nested Class Summary
Nested classes/interfaces inherited from class JList
JList.AccessibleJList, JList.DropLocation
Nested classes/interfaces inherited from class JComponent
JComponent.AccessibleJComponent
Nested classes/interfaces inherited from class Container
Container.AccessibleAWTContainer
Nested classes/interfaces inherited from class Component
Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy
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Field Summary
Fields inherited from class JList
HORIZONTAL_WRAP, VERTICAL, VERTICAL_WRAP
Fields inherited from class JComponent
listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW
Fields inherited from class Component
accessibleContext, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT
Fields inherited from interface ImageObserver
ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH
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Constructor Summary
ConstructorsConstructorDescriptionDnDList()
Default constructor.DnDList
(DnDListModel<T> model) Constructor allowing the list model to be specified -
Method Summary
Modifier and TypeMethodDescriptionvoid
Description copied from interface:
This method is invoked to signify that the Drag and Drop operation is complete.void
dragEnter
(DragSourceDragEvent dsde) DragSourceListener method - presently ignoredvoid
dragEnter
(DropTargetDragEvent dtde) Records the index of the list item (if any) pointed to by the mouse cursorvoid
dragExit
(DragSourceEvent dse) DragSourceListener method - presently ignoredvoid
dragExit
(DropTargetEvent dte) Description copied from interface:
Called while a drag operation is ongoing, when the mouse pointer has exited the operable part of the drop site for the DropTarget registered with this listener.void
Called by the system when a drag gesture startsvoid
dragOver
(DragSourceDragEvent dsde) DragSourceListener method - presently ignoredvoid
dragOver
(DropTargetDragEvent dtde) Records the index of the list item (if any) pointed to by the mouse cursorvoid
drop
(DropTargetDropEvent dtde) Handles the moving (for drag and drop actions within this list) or transfer (for actions between lists) of list items.void
DragSourceListener method - presently ignoredvoid
DropTargetListener method - presently ignoredgetModel()
Methods inherited from class JList
addListSelectionListener, addSelectionInterval, clearSelection, createSelectionModel, ensureIndexIsVisible, fireSelectionValueChanged, getAccessibleContext, getAnchorSelectionIndex, getCellBounds, getCellRenderer, getDragEnabled, getDropLocation, getDropMode, getFirstVisibleIndex, getFixedCellHeight, getFixedCellWidth, getLastVisibleIndex, getLayoutOrientation, getLeadSelectionIndex, getListSelectionListeners, getMaxSelectionIndex, getMinSelectionIndex, getNextMatch, getPreferredScrollableViewportSize, getPrototypeCellValue, getScrollableBlockIncrement, getScrollableTracksViewportHeight, getScrollableTracksViewportWidth, getScrollableUnitIncrement, getSelectedIndex, getSelectedIndices, getSelectedValue, getSelectedValues, getSelectedValuesList, getSelectionBackground, getSelectionForeground, getSelectionMode, getSelectionModel, getToolTipText, getUI, getUIClassID, getValueIsAdjusting, getVisibleRowCount, indexToLocation, isSelectedIndex, isSelectionEmpty, locationToIndex, paramString, removeListSelectionListener, removeSelectionInterval, setCellRenderer, setDragEnabled, setDropMode, setFixedCellHeight, setFixedCellWidth, setLayoutOrientation, setListData, setListData, setModel, setPrototypeCellValue, setSelectedIndex, setSelectedIndices, setSelectedValue, setSelectionBackground, setSelectionForeground, setSelectionInterval, setSelectionMode, setSelectionModel, setUI, setValueIsAdjusting, setVisibleRowCount, updateUI
Methods inherited from class JComponent
addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, hide, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingOrigin, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, setFocusTraversalKeys, setFont, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update
Methods inherited from class Container
add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getMousePosition, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setLayout, transferFocusDownCycle, validate, validateTree
Methods inherited from class Component
action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, createVolatileImage, createVolatileImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setMixingCutoutShape, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle
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Constructor Details
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DnDList
public DnDList()Default constructor. An DnDListModel object will be created for the list. -
DnDList
Constructor allowing the list model to be specified- Parameters:
model
- an instance of DnDListModel- Throws:
IllegalArgumentException
- if model is null
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Method Details
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getModel
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dragGestureRecognized
Called by the system when a drag gesture starts- Specified by:
dragGestureRecognized
in interfaceDragGestureListener
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dragEnter
DragSourceListener method - presently ignoredDescription copied from interface:
Called as the cursor's hotspot enters a platform-dependent drop site. This method is invoked when all the following conditions are true:- The cursor's hotspot enters the operable part of a platform- dependent drop site.
- The drop site is active.
- The drop site accepts the drag.
- Specified by:
dragEnter
in interfaceDragSourceListener
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dragOver
DragSourceListener method - presently ignoredDescription copied from interface:
Called as the cursor's hotspot moves over a platform-dependent drop site. This method is invoked when all the following conditions are true:- The cursor's hotspot has moved, but still intersects the operable part of the drop site associated with the previous dragEnter() invocation.
- The drop site is still active.
- The drop site accepts the drag.
- Specified by:
dragOver
in interfaceDragSourceListener
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dropActionChanged
DragSourceListener method - presently ignoredDescription copied from interface:
Called when the user has modified the drop gesture. This method is invoked when the state of the input device(s) that the user is interacting with changes. Such devices are typically the mouse buttons or keyboard modifiers that the user is interacting with.- Specified by:
dropActionChanged
in interfaceDragSourceListener
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dragExit
DragSourceListener method - presently ignoredDescription copied from interface:
Called as the cursor's hotspot exits a platform-dependent drop site. This method is invoked when any of the following conditions are true:- The cursor's hotspot no longer intersects the operable part of the drop site associated with the previous dragEnter() invocation.
- The drop site associated with the previous dragEnter() invocation is no longer active.
- The drop site associated with the previous dragEnter() invocation has rejected the drag.
- Specified by:
dragExit
in interfaceDragSourceListener
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dragDropEnd
Description copied from interface:
This method is invoked to signify that the Drag and Drop operation is complete. The getDropSuccess() method of the DragSourceDropEvent can be used to determine the termination state. The getDropAction() method returns the operation that the drop site selected to apply to the Drop operation. Once this method is complete, the current DragSourceContext and associated resources become invalid.- Specified by:
dragDropEnd
in interfaceDragSourceListener
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dragEnter
Records the index of the list item (if any) pointed to by the mouse cursorDescription copied from interface:
Called while a drag operation is ongoing, when the mouse pointer enters the operable part of the drop site for the DropTarget registered with this listener.- Specified by:
dragEnter
in interfaceDropTargetListener
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dragOver
Records the index of the list item (if any) pointed to by the mouse cursorDescription copied from interface:
Called when a drag operation is ongoing, while the mouse pointer is still over the operable part of the drop site for the DropTarget registered with this listener.- Specified by:
dragOver
in interfaceDropTargetListener
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dropActionChanged
DropTargetListener method - presently ignoredDescription copied from interface:
Called if the user has modified the current drop gesture.- Specified by:
dropActionChanged
in interfaceDropTargetListener
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dragExit
Description copied from interface:
Called while a drag operation is ongoing, when the mouse pointer has exited the operable part of the drop site for the DropTarget registered with this listener.- Specified by:
dragExit
in interfaceDropTargetListener
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drop
Handles the moving (for drag and drop actions within this list) or transfer (for actions between lists) of list items. Description copied from interface:
Called when the drag operation has terminated with a drop on the operable part of the drop site for the DropTarget registered with this listener.This method is responsible for undertaking the transfer of the data associated with the gesture. The DropTargetDropEvent provides a means to obtain a Transferable object that represents the data object(s) to be transfered.
From this method, the DropTargetListener shall accept or reject the drop via the acceptDrop(int dropAction) or rejectDrop() methods of the DropTargetDropEvent parameter.
Subsequent to acceptDrop(), but not before, DropTargetDropEvent's getTransferable() method may be invoked, and data transfer may be performed via the returned Transferable's getTransferData() method.
At the completion of a drop, an implementation of this method is required to signal the success/failure of the drop by passing an appropriate boolean to the DropTargetDropEvent's dropComplete(boolean success) method.
Note: The data transfer should be completed before the call to the DropTargetDropEvent's dropComplete(boolean success) method. After that, a call to the getTransferData() method of the Transferable returned by DropTargetDropEvent.getTransferable() is guaranteed to succeed only if the data transfer is local; that is, only if DropTargetDropEvent.isLocalTransfer() returns true. Otherwise, the behavior of the call is implementation-dependent.
- Specified by:
drop
in interfaceDropTargetListener
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