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org.eclipse.gef.tools
Class SelectEditPartTracker
java.lang.Object
org.eclipse.gef.util.FlagSupport
org.eclipse.gef.tools.AbstractTool
org.eclipse.gef.tools.TargetingTool
org.eclipse.gef.tools.SelectEditPartTracker
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All Implemented Interfaces:
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DragTracker,
RequestConstants,
Tool
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Direct Known Subclasses:
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DeselectAllTracker,
DragEditPartsTracker,
DragTreeItemsTracker
- public class SelectEditPartTracker
- extends
TargetingTool
- implements
DragTracker
DragTracker used to select, edit, and open
EditParts.
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Fields inherited from class org.eclipse.gef.tools.
AbstractTool
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MAX_STATE,
MOUSE_BUTTON_ANY,
MOUSE_BUTTON1,
MOUSE_BUTTON2,
MOUSE_BUTTON3,
PROPERTY_UNLOAD_WHEN_FINISHED,
STATE_ACCESSIBLE_DRAG,
STATE_ACCESSIBLE_DRAG_IN_PROGRESS,
STATE_DRAG,
STATE_DRAG_IN_PROGRESS,
STATE_INITIAL,
STATE_INVALID,
STATE_TERMINAL
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Fields inherited from interface org.eclipse.gef.
RequestConstants
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REQ_ADD,
REQ_ALIGN,
REQ_ALIGN_CHILDREN,
REQ_CLONE,
REQ_CONNECTION_END,
REQ_CONNECTION_START,
REQ_CREATE,
REQ_CREATE_BENDPOINT,
REQ_DELETE,
REQ_DELETE_DEPENDANT,
REQ_DIRECT_EDIT,
REQ_MOVE,
REQ_MOVE_BENDPOINT,
REQ_MOVE_CHILDREN,
REQ_OPEN,
REQ_ORPHAN,
REQ_ORPHAN_CHILDREN,
REQ_RECONNECT_SOURCE,
REQ_RECONNECT_TARGET,
REQ_RESIZE,
REQ_RESIZE_CHILDREN,
REQ_SELECTION,
REQ_SELECTION_HOVER
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Methods inherited from class org.eclipse.gef.tools.
TargetingTool
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createTargetRequest,
deactivate,
doAutoexpose,
eraseTargetFeedback,
getAutoexposeHelper,
getCommand,
getExclusionSet,
getTargetEditPart,
getTargetingConditional,
getTargetRequest,
handleAutoexpose,
handleEnteredEditPart,
handleExitingEditPart,
handleHoverStop,
handleInvalidInput,
handleLeavingEditPart,
handleViewerExited,
isShowingTargetFeedback,
isTargetLocked,
lockTargetEditPart,
resetHover,
setAutoexposeHelper,
setTargetEditPart,
setTargetRequest,
showTargetFeedback,
unlockTargetEditPart,
updateAutoexposeHelper,
updateTargetRequest,
updateTargetUnderMouse
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Methods inherited from class org.eclipse.gef.tools.
AbstractTool
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acceptArrowKey,
activate,
addFeedback,
applyProperty,
commitDrag,
createOperationSet,
debug,
executeCommand,
executeCurrentCommand,
focusGained,
focusLost,
getCurrentCommand,
getCurrentInput,
getCurrentViewer,
getDebugNameForState,
getDefaultCursor,
getDisabledCursor,
getDomain,
getDragMoveDelta,
getLocation,
getOperationSet,
getStartLocation,
getState,
handleCommandStackChanged,
handleDrag,
handleDragInProgress,
handleFinished,
handleFocusGained,
handleFocusLost,
handleHover,
handleKeyDown,
handleKeyTraversed,
handleKeyUp,
handleMove,
handleNativeDragFinished,
handleNativeDragStarted,
handleViewerEntered,
isActive,
isHoverActive,
isInState,
isViewerImportant,
keyDown,
keyTraversed,
keyUp,
mouseDoubleClick,
mouseDown,
mouseDrag,
mouseHover,
mouseMove,
mouseUp,
mouseWheelScrolled,
movedPastThreshold,
nativeDragFinished,
nativeDragStarted,
performViewerMouseWheel,
placeMouseInViewer,
reactivate,
refreshCursor,
releaseToolCapture,
removeFeedback,
setCurrentCommand,
setCursor,
setDefaultCursor,
setDisabledCursor,
setEditDomain,
setHoverActive,
setProperties,
setStartLocation,
setState,
setToolCapture,
setUnloadWhenFinished,
setViewer,
stateTransition,
unloadWhenFinished,
viewerEntered,
viewerExited
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Methods inherited from class java.lang.Object
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.eclipse.gef.
Tool
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activate,
deactivate,
focusGained,
focusLost,
keyDown,
keyTraversed,
keyUp,
mouseDoubleClick,
mouseDown,
mouseDrag,
mouseHover,
mouseMove,
mouseUp,
mouseWheelScrolled,
nativeDragFinished,
nativeDragStarted,
setEditDomain,
setProperties,
setViewer,
viewerEntered,
viewerExited
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FLAG_SELECTION_PERFORMED
protected static final int FLAG_SELECTION_PERFORMED
- Flag to indicate selection has been performed.
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See Also:
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Constant Field Values
MAX_FLAG
protected static final int MAX_FLAG
- Max flag
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See Also:
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Constant Field Values
SelectEditPartTracker
public SelectEditPartTracker(
EditPart owner)
- Constructs a new SelectEditPartTracker with the given edit part as the source.
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Parameters:
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owner - the source edit part
calculateCursor
protected Cursor calculateCursor()
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Description copied from class:
AbstractTool
- Returns the appropriate cursor for the tools current state. If the tool is in its
terminal state,
null is returned. Otherwise, either the default or
disabled cursor is returned, based on the existence of a current command, and whether
that current command is executable.
Subclasses may override or extend this method to calculate the appropriate cursor based
on other conditions.
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Overrides:
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calculateCursor
in class
AbstractTool
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Returns:
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null or a cursor to be displayed. -
See Also:
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AbstractTool.calculateCursor()
getCommandName
protected java.lang.String getCommandName()
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Description copied from class:
AbstractTool
- Returns the identifier of the command that is being sought. This name is also the
named that will be logged in the debug view.
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Specified by:
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getCommandName
in class
AbstractTool
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Returns:
- the identifier for the command
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See Also:
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AbstractTool.getCommandName()
getDebugName
protected java.lang.String getDebugName()
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Description copied from class:
AbstractTool
- Returns the debug name for this tool.
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Overrides:
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getDebugName
in class
AbstractTool
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Returns:
- the debug name
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See Also:
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AbstractTool.getDebugName()
getSourceEditPart
protected
EditPart getSourceEditPart()
- Returns the source edit part.
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Returns:
- the source edit part
handleButtonDown
protected boolean handleButtonDown(int button)
- Performs a conditional selection if needed (if right or left mouse button have been
pressed) and goes into the drag state. If any other button has been pressed, the tool
goes into the invalid state.
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Overrides:
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handleButtonDown
in class
AbstractTool
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Parameters:
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button - which button went down
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Returns:
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true if the buttonDown was handled -
See Also:
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AbstractTool.handleButtonDown(int)
handleButtonUp
protected boolean handleButtonUp(int button)
- If in the drag state, the tool selects the source edit part. If the edit part was
already selected,
performDirectEdit() is called. If the edit part is newly
selected and not completely visible,
EditPartViewer.reveal(EditPart) is
called to show the selected edit part.
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Overrides:
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handleButtonUp
in class
AbstractTool
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Parameters:
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button - the button being released
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Returns:
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true if the button up was handled -
See Also:
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AbstractTool.handleButtonUp(int)
handleDoubleClick
protected boolean handleDoubleClick(int button)
- Calls
performOpen() if the double click was with mouse button 1.
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Overrides:
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handleDoubleClick
in class
AbstractTool
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Parameters:
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button - which button was double-clicked
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Returns:
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true if the event was handled -
See Also:
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AbstractTool.handleDoubleClick(int)
handleDragStarted
protected boolean handleDragStarted()
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Description copied from class:
AbstractTool
- Called only one time during a drag when the drag threshold has been exceeded. By
default, nothing happens and
false is returned. Subclasses may override
to interpret the drag starting. Returning true indicates that the event
was handled.
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Overrides:
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handleDragStarted
in class
AbstractTool
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Returns:
- true if the drag starting was handled
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See Also:
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AbstractTool.handleDragStarted()
hasSelectionOccurred
protected boolean hasSelectionOccurred()
- Returns
true if selection has already occured.
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Returns:
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true if selection has occured
performConditionalSelection
protected void performConditionalSelection()
- Calls
performSelection() if the source is not selected. If the source is
selected and there are no modifier keys pressed (i.e. the user isn't selecting
multiple edit parts or deselecting edit parts), sets the direct edit flag so that when
the mouse is released, a direct edit will be performed.
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performDirectEdit
protected void performDirectEdit()
- Creates a
DirectEditRequest and sends it to a DelayedDirectEditHelper
to allow the user to directly edit the edit part.
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performOpen
protected void performOpen()
- Creates a
SelectionRequest and sends it to the source edit part via
EditPart.performRequest(Request). Possible uses are to open the selected item
in another editor or replace the current editor's contents based on the selected item.
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performSelection
protected void performSelection()
- Performs the appropriate selection action based on the selection state of the source
and the modifiers (CTRL and SHIFT). If no modifier key is pressed, the source will be
set as the only selection. If the CTRL key is pressed and the edit part is already
selected, it will be deselected. If the CTRL key is pressed and the edit part is not
selected, it will be appended to the selection set. If the SHIFT key is pressed, the
source will be appended to the selection.
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resetFlags
protected void resetFlags()
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Description copied from class:
TargetingTool
- Extended to reset the target lock flag.
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Overrides:
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resetFlags
in class
TargetingTool
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See Also:
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AbstractTool.resetFlags()
setSourceEditPart
protected void setSourceEditPart(
EditPart part)
- Sets the source edit part.
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Parameters:
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part - the source edit part
Copyright (c) IBM Corp. and others 2000, 2007. All Rights Reserved.
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