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org.eclipse.gef.tools
Class PanningSelectionTool
java.lang.Object
org.eclipse.gef.util.FlagSupport
org.eclipse.gef.tools.AbstractTool
org.eclipse.gef.tools.TargetingTool
org.eclipse.gef.tools.SelectionTool
org.eclipse.gef.tools.PanningSelectionTool
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All Implemented Interfaces:
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RequestConstants,
Tool
- public class PanningSelectionTool
- extends
SelectionTool
A subclass of the SelectionTool that allows panning
by holding down the space bar.
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Field Summary
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protected static int
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MAX_STATE
Max state |
protected static int
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PAN
The state to indicate that the space bar has been pressed but
no drag has been initiated. |
protected static int
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PAN_IN_PROGRESS
The state to indicate that a pan is in progress. |
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Fields inherited from class org.eclipse.gef.tools.
AbstractTool
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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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Method Summary
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protected boolean
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acceptSpaceBar
(KeyEvent e)
Returns true if spacebar condition was accepted. |
protected java.lang.String
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getDebugName
()
Returns the debug name for this tool. |
protected java.lang.String
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getDebugNameForState
(int state)
Returns a String representation of the given state for debug purposes. |
protected Cursor
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getDefaultCursor
()
Returns the cursor used under normal conditions. |
protected boolean
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handleButtonDown
(int which)
If there is a Handle under the mouse, this method sets the drag tracker
returned from the handle. |
protected boolean
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handleButtonUp
(int which)
Resets this tool when the last button is released. |
protected boolean
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handleDrag
()
Called whenever the mouse is being dragged. |
protected boolean
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handleFocusLost
()
Sets the drag tracker to null and goes into the initial state when focus
is lost. |
protected boolean
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handleKeyDown
(KeyEvent e)
Processes key down events. |
protected boolean
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handleKeyUp
(KeyEvent e)
If in the initial state and the viewer has a KeyHandler, calls
KeyHandler#keyReleased(KeyEvent) sending it the given key event. |
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Methods inherited from class org.eclipse.gef.tools.
SelectionTool
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createHoverRequest,
createTargetRequest,
deactivate,
eraseHoverFeedback,
getCommandName,
getDragTracker,
getTargetHoverRequest,
getTargetingConditional,
handleCommandStackChanged,
handleHover,
handleHoverStop,
handleMove,
handleNativeDragFinished,
handleNativeDragStarted,
handleViewerExited,
keyDown,
keyUp,
mouseDoubleClick,
mouseDown,
mouseDrag,
mouseHover,
mouseMove,
mouseUp,
mouseWheelScrolled,
refreshCursor,
setDragTracker,
showHoverFeedback,
updateHoverRequest,
updateTargetRequest
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Methods inherited from class org.eclipse.gef.tools.
TargetingTool
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doAutoexpose,
eraseTargetFeedback,
getAutoexposeHelper,
getCommand,
getExclusionSet,
getTargetEditPart,
getTargetRequest,
handleAutoexpose,
handleEnteredEditPart,
handleExitingEditPart,
handleInvalidInput,
handleLeavingEditPart,
isShowingTargetFeedback,
isTargetLocked,
lockTargetEditPart,
resetFlags,
resetHover,
setAutoexposeHelper,
setTargetEditPart,
setTargetRequest,
showTargetFeedback,
unlockTargetEditPart,
updateAutoexposeHelper,
updateTargetUnderMouse
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Methods inherited from class org.eclipse.gef.tools.
AbstractTool
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acceptArrowKey,
activate,
addFeedback,
applyProperty,
calculateCursor,
commitDrag,
createOperationSet,
debug,
executeCommand,
executeCurrentCommand,
focusGained,
focusLost,
getCurrentCommand,
getCurrentInput,
getCurrentViewer,
getDisabledCursor,
getDomain,
getDragMoveDelta,
getLocation,
getOperationSet,
getStartLocation,
getState,
handleDoubleClick,
handleDragInProgress,
handleDragStarted,
handleFinished,
handleFocusGained,
handleKeyTraversed,
handleViewerEntered,
isActive,
isHoverActive,
isInState,
isViewerImportant,
keyTraversed,
movedPastThreshold,
nativeDragFinished,
nativeDragStarted,
performViewerMouseWheel,
placeMouseInViewer,
reactivate,
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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PAN
protected static final int PAN
- The state to indicate that the space bar has been pressed but
no drag has been initiated.
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See Also:
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Constant Field Values
PAN_IN_PROGRESS
protected static final int PAN_IN_PROGRESS
- The state to indicate that a pan is in progress.
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See Also:
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Constant Field Values
MAX_STATE
protected static final int MAX_STATE
- Max state
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See Also:
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Constant Field Values
PanningSelectionTool
public PanningSelectionTool()
acceptSpaceBar
protected boolean acceptSpaceBar(KeyEvent e)
- Returns
true if spacebar condition was accepted.
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Parameters:
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e - the key event
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Returns:
- true if the space bar was the key event.
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
SelectionTool
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See Also:
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AbstractTool.getDebugName()
getDebugNameForState
protected java.lang.String getDebugNameForState(int state)
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Description copied from class:
AbstractTool
- Returns a String representation of the given state for debug purposes.
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Overrides:
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getDebugNameForState
in class
SelectionTool
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See Also:
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AbstractTool.getDebugNameForState(int)
getDefaultCursor
protected Cursor getDefaultCursor()
- Returns the cursor used under normal conditions.
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Overrides:
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getDefaultCursor
in class
AbstractTool
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Returns:
- the default cursor
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See Also:
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AbstractTool.setDefaultCursor(Cursor)
handleButtonDown
protected boolean handleButtonDown(int which)
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Description copied from class:
SelectionTool
- If there is a
Handle under the mouse, this method sets the drag tracker
returned from the handle. If there's an
EditPart under the mouse, this method
sets the drag tracker returned from the edit part.
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Overrides:
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handleButtonDown
in class
SelectionTool
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See Also:
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SelectionTool.handleButtonDown(int)
handleButtonUp
protected boolean handleButtonUp(int which)
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Description copied from class:
SelectionTool
- Resets this tool when the last button is released.
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Overrides:
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handleButtonUp
in class
SelectionTool
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See Also:
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SelectionTool.handleButtonUp(int)
handleDrag
protected boolean handleDrag()
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Description copied from class:
AbstractTool
- Called whenever the mouse is being dragged. This method continues to be called
even once
AbstractTool.handleDragInProgress() starts getting called. By default, nothing
happens, and false is returned. Subclasses may override this method to
interpret a drag. Returning true indicates that the drag was handled in
some way.
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Overrides:
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handleDrag
in class
AbstractTool
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Returns:
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true if the drag is handled -
See Also:
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AbstractTool.handleDrag()
handleFocusLost
protected boolean handleFocusLost()
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Description copied from class:
SelectionTool
- Sets the drag tracker to
null and goes into the initial state when focus
is lost.
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Overrides:
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handleFocusLost
in class
SelectionTool
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See Also:
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SelectionTool.handleFocusLost()
handleKeyDown
protected boolean handleKeyDown(KeyEvent e)
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Description copied from class:
SelectionTool
- Processes key down events. Specifically, arrow keys for moving edit parts, the ESC key
for aborting a drag, the period '.' key for traversing handles, and the ENTER key for
committing a drag. If none of these keys were pressed and the current viewer has a
KeyHandler, it calls
KeyHandler.keyPressed(KeyEvent).
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Overrides:
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handleKeyDown
in class
SelectionTool
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See Also:
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org.eclipse.gef.tools.SelectionTool#handleKeyDown(org.eclipse.swt.events.KeyEvent)
handleKeyUp
protected boolean handleKeyUp(KeyEvent e)
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Description copied from class:
SelectionTool
- If in the initial state and the viewer has a
KeyHandler, calls
KeyHandler.keyReleased(KeyEvent) sending it the given key event.
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Overrides:
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handleKeyUp
in class
SelectionTool
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See Also:
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org.eclipse.gef.tools.SelectionTool#handleKeyUp(org.eclipse.swt.events.KeyEvent)
Copyright (c) IBM Corp. and others 2000, 2007. All Rights Reserved.
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