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Eclipse GEF
3.3

org.eclipse.gef.tools
Class ConnectionCreationTool

java.lang.Object
  extended by

org.eclipse.gef.util.FlagSupport
      extended by

org.eclipse.gef.tools.AbstractTool
          extended by

org.eclipse.gef.tools.TargetingTool
              extended by

org.eclipse.gef.tools.AbstractConnectionCreationTool
                  extended by
org.eclipse.gef.tools.ConnectionCreationTool
All Implemented Interfaces:
RequestConstants, Tool

public class ConnectionCreationTool
extends AbstractConnectionCreationTool

The default creation tool for connections. With this tool, the user must click and release the left mouse button on the source edit part and then click and release the left mouse button on the target edit part. By default, this tool will remain active after connections are created. The user must select a different tool to deactivate this tool.


Nested Class Summary
 
Nested classes inherited from class org.eclipse.gef.tools. AbstractTool
AbstractTool.Input
 
Field Summary
 
Fields inherited from class org.eclipse.gef.tools. AbstractConnectionCreationTool
MAX_FLAG, MAX_STATE, STATE_CONNECTION_STARTED
 
Fields inherited from class org.eclipse.gef.tools. AbstractTool
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
 
Fields inherited from interface org.eclipse.gef. RequestConstants
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
 
Constructor Summary
ConnectionCreationTool ()
          Default Constructor.
ConnectionCreationTool ( CreationFactory factory)
          Constructs a new ConnectionCreationTool with the given factory.
 
Method Summary
protected  boolean handleButtonDown (int button)
          If the connections is already started, the second button down will call AbstractConnectionCreationTool.handleCreateConnection().
protected  boolean handleFocusLost ()
          Cleans up feedback and resets the tool when focus is lost.
protected  boolean handleKeyDown (KeyEvent event)
          Processes the arrow keys (to move the cursor to nearby anchor locations) and the enter key (to start or complete a connections).
 void mouseWheelScrolled (Event event, EditPartViewer viewer)
          Scrolling can happen either in the initial state or once the source of the connection has been identified.
 
Methods inherited from class org.eclipse.gef.tools. AbstractConnectionCreationTool
calculateCursor, createTargetRequest, deactivate, eraseSourceFeedback, getCommandName, getDebugName, getDebugNameForState, getFactory, getSourceRequest, handleButtonUp, handleCommandStackChanged, handleCreateConnection, handleDrag, handleDragInProgress, handleHover, handleInvalidInput, handleMove, handleSourceDeactivated, isShowingSourceFeedback, setConnectionSource, setFactory, showSourceFeedback, updateTargetRequest
 
Methods inherited from class org.eclipse.gef.tools. TargetingTool
doAutoexpose, eraseTargetFeedback, getAutoexposeHelper, getCommand, getExclusionSet, getTargetEditPart, getTargetingConditional, getTargetRequest, handleAutoexpose, handleEnteredEditPart, handleExitingEditPart, handleHoverStop, handleLeavingEditPart, handleViewerExited, isShowingTargetFeedback, isTargetLocked, lockTargetEditPart, resetFlags, resetHover, setAutoexposeHelper, setTargetEditPart, setTargetRequest, showTargetFeedback, unlockTargetEditPart, updateAutoexposeHelper, updateTargetUnderMouse
 
Methods inherited from class org.eclipse.gef.tools. AbstractTool
acceptArrowKey, activate, addFeedback, applyProperty, commitDrag, createOperationSet, debug, executeCommand, executeCurrentCommand, focusGained, focusLost, getCurrentCommand, getCurrentInput, getCurrentViewer, getDefaultCursor, getDisabledCursor, getDomain, getDragMoveDelta, getLocation, getOperationSet, getStartLocation, getState, handleDoubleClick, handleDragStarted, handleFinished, handleFocusGained, handleKeyTraversed, handleKeyUp, handleNativeDragFinished, handleNativeDragStarted, handleViewerEntered, isActive, isHoverActive, isInState, isViewerImportant, keyDown, keyTraversed, keyUp, mouseDoubleClick, mouseDown, mouseDrag, mouseHover, mouseMove, mouseUp, 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
 
Methods inherited from class org.eclipse.gef.util. FlagSupport
getFlag, setFlag
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

ConnectionCreationTool

public ConnectionCreationTool()
Default Constructor.


ConnectionCreationTool

public ConnectionCreationTool(
CreationFactory factory)
Constructs a new ConnectionCreationTool with the given factory.

Parameters:
factory - the creation factory
Method Detail

handleButtonDown

protected boolean handleButtonDown(int button)
If the connections is already started, the second button down will call AbstractConnectionCreationTool.handleCreateConnection(). Otherwise, it attempts to start the connection.

Overrides:
handleButtonDown in class AbstractConnectionCreationTool
Parameters:
button - the button that was pressed
Returns:
true if the button down was processed
See Also:
AbstractTool.handleButtonDown(int)

handleFocusLost

protected boolean handleFocusLost()
Cleans up feedback and resets the tool when focus is lost.

Overrides:
handleFocusLost in class AbstractConnectionCreationTool
Returns:
true if this focus lost event was processed
See Also:
AbstractTool.handleFocusLost()

handleKeyDown

protected boolean handleKeyDown(KeyEvent event)
Processes the arrow keys (to move the cursor to nearby anchor locations) and the enter key (to start or complete a connections).

Overrides:
handleKeyDown in class AbstractTool
Parameters:
event - the key event
Returns:
true if this key down event was processed
See Also:
AbstractTool.keyDown(KeyEvent, EditPartViewer)

mouseWheelScrolled

public void mouseWheelScrolled(Event event,
                               
EditPartViewer viewer)
Scrolling can happen either in the initial state or once the source of the connection has been identified.

Specified by:
mouseWheelScrolled in interface Tool
Overrides:
mouseWheelScrolled in class AbstractTool
Parameters:
event - the SWT scroll event
viewer - the originating viewer
See Also:
org.eclipse.gef.Tool#mouseWheelScrolled(org.eclipse.swt.widgets.Event, org.eclipse.gef.EditPartViewer)

Eclipse GEF
3.3

Copyright (c) IBM Corp. and others 2000, 2007. All Rights Reserved.

 
 
  Published under the terms of the Eclipse Public License Version 1.0 ("EPL") Design by Interspire