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org.eclipse.emf.edit.command
Interface DragAndDropFeedback

All Known Implementing Classes:

DragAndDropCommand

public interface DragAndDropFeedback

This interface is implemented by any Command that supports detailed drag and drop feedback. This interface provides synonyms for all the important org.eclipse.swt.dnd.DND constants, so that commands can be written without reference to SWT.

Field Summary

static int	DROP_COPY This is the same as org.eclipse.swt.dnd.DND.DROP_COPY.
static int	DROP_LINK This is the same as org.eclipse.swt.dnd.DND.DROP_LINK.
static int	DROP_MOVE This is the same as org.eclipse.swt.dnd.DND.DROP_MOVE.
static int	DROP_NONE This is the same as org.eclipse.swt.dnd.DND.DROP_NONE.
static int	FEEDBACK_INSERT_AFTER This is the same as org.eclipse.swt.dnd.DND.FEEDBACK_INSERT_AFTER.
static int	FEEDBACK_INSERT_BEFORE This is the same as org.eclipse.swt.dnd.DND.FEEDBACK_INSERT_BEFORE.
static int	FEEDBACK_NONE This is the same as org.eclipse.swt.dnd.DND.FEEDBACK_NONE.
static int	FEEDBACK_SELECT This is the same as org.eclipse.swt.dnd.DND.FEEDBACK_SELECT.

Method Summary

int	getFeedback() This returns one of the FEEDBACK_* values.
int	getOperation() This returns one of the DROP_* values.
boolean	validate(Object owner, float location, int operations, int operation, Collection collection) This is called repeatedly as the drag and drop information changes.

Field Detail

DROP_NONE

public static final int DROP_NONE

This is the same as org.eclipse.swt.dnd.DND.DROP_NONE.

See Also:

Constant Field Values

DROP_COPY

public static final int DROP_COPY

This is the same as org.eclipse.swt.dnd.DND.DROP_COPY.

See Also:

Constant Field Values

DROP_MOVE

public static final int DROP_MOVE

This is the same as org.eclipse.swt.dnd.DND.DROP_MOVE.

See Also:

Constant Field Values

DROP_LINK

public static final int DROP_LINK

This is the same as org.eclipse.swt.dnd.DND.DROP_LINK.

See Also:

Constant Field Values

FEEDBACK_NONE

public static final int FEEDBACK_NONE

This is the same as org.eclipse.swt.dnd.DND.FEEDBACK_NONE.

See Also:

Constant Field Values

FEEDBACK_SELECT

public static final int FEEDBACK_SELECT

This is the same as org.eclipse.swt.dnd.DND.FEEDBACK_SELECT.

See Also:

Constant Field Values

FEEDBACK_INSERT_BEFORE

public static final int FEEDBACK_INSERT_BEFORE

This is the same as org.eclipse.swt.dnd.DND.FEEDBACK_INSERT_BEFORE.

See Also:

Constant Field Values

FEEDBACK_INSERT_AFTER

public static final int FEEDBACK_INSERT_AFTER

This is the same as org.eclipse.swt.dnd.DND.FEEDBACK_INSERT_AFTER.

See Also:

Constant Field Values

Method Detail

validate

public boolean validate(Object owner,
                        float location,
                        int operations,
                        int operation,
                        Collection collection)

This is called repeatedly as the drag and drop information changes. The collection, which represents the dragged source, does not normally change.

getFeedback

public int getFeedback()

This returns one of the FEEDBACK_* values.

getOperation

public int getOperation()

This returns one of the DROP_* values.