y.view
Class MoveSelectionMode

java.lang.Object
  y.view.ViewMode
      y.view.MoveSelectionMode

All Implemented Interfaces:

MouseListener, MouseMotionListener, EventListener, MouseInputListener

Direct Known Subclasses:

HierarchyMoveSelectionMode, PortAssignmentMoveSelectionMode

public class MoveSelectionMode
extends ViewMode

This view mode is responsible for moving selected parts of the displayed graph. On a left press this mode starts to move selected graph elements around. While the mouse is being dragged the selected parts will be moved around. If the mouse gets released the operation will end and all registered views will receive an update event.

Field Summary

Fields inherited from class y.view.ViewMode

ACTIVE_PROPERTY, ACTIVE_VIEW_PROPERTY, CHILD_MODE_PROPERTY, EDITING_PROPERTY, GRAB_FOCUS_ENABLED_PROPERTY, lastClickEvent, lastDragEvent, lastMoveEvent, lastPressEvent, lastReleaseEvent, MODIFIER_MASK_PROPERTY, NAME_PROPERTY, originalX, originalY, PARENT_MODE_PROPERTY, view

Constructor Summary

MoveSelectionMode()
Initializes a new MoveSelectionMode.

MoveSelectionMode(ViewContainer view)
Initializes a new MoveSelectionMode for a given ViewContainer

Method Summary

void	activate(boolean b) Invoked when the Mode is activated/deactivated from the ViewControl or via the setChild() and reactivateParent operations This behaves like a bound property using ViewMode.ACTIVE_PROPERTY as the property name.
void	cancelEditing() This can be used to cleanly exit an edit that is currently in progress.
protected BendList	getBendsToBeMoved() Returns the bends that should will be moved by this view mode.
protected NodeList	getNodesToBeMoved() Returns the nodes that should will be moved by this view mode.
protected boolean	isOrthogonalRouting(Edge edge) Determines whether the given edge instance should be routed orthogonally.
void	mouseDraggedLeft(double x, double y) Moves the selected graph elements around.
void	mousePressedLeft(double x, double y) Initiates the movement of the selected graph elements.
void	mouseReleasedLeft(double x, double y) Terminates the movements of the selected graph elements.
void	mouseShiftPressedLeft(double x, double y) Initiates the movement of the selected graph elements.
void	mouseShiftReleasedLeft(double x, double y) Terminates the movements of the selected graph elements.
protected void	selectionMovedAction(double dx, double dy, double x, double y) Performs an action after the selection was moved.
protected void	selectionMoveStarted(double x, double y) Performs an action when the selection is about to be moved.
protected void	selectionOnMove(double dx, double dy, double x, double y) Performs an action when the selection is moving.

Methods inherited from class y.view.ViewMode

addPropertyChangeListener, addPropertyChangeListener, firePropertyChange, firePropertyChange, firePropertyChange, getChild, getGraph2D, getGridX, getGridY, getHitInfo, getHitInfo, getLastHitInfo, getModifierMask, getName, getParent, init, isActive, isEditing, isGrabFocusEnabled, isGridMode, isModifierPressed, mouseClicked, mouseClicked, mouseDragged, mouseDraggedMiddle, mouseDraggedRight, mouseEntered, mouseExited, mouseMoved, mouseMoved, mousePressed, mousePressedMiddle, mousePressedRight, mouseReleased, mouseReleased, mouseReleasedMiddle, mouseReleasedRight, mouseShiftPressedMiddle, mouseShiftPressedRight, mouseShiftReleasedMiddle, mouseShiftReleasedRight, reactivateParent, removePropertyChangeListener, removePropertyChangeListener, setActiveView, setChild, setChild, setEditing, setGrabFocusEnabled, setGridMode, setLastHitInfo, setModifierMask, setName, setParent, translateX, translateY

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MoveSelectionMode

public MoveSelectionMode(ViewContainer view)

Initializes a new MoveSelectionMode for a given ViewContainer

MoveSelectionMode

public MoveSelectionMode()

Initializes a new MoveSelectionMode.

Method Detail

activate

public void activate(boolean b)

Description copied from class: ViewMode

Invoked when the Mode is activated/deactivated from the ViewControl or via the setChild() and reactivateParent operations This behaves like a bound property using ViewMode.ACTIVE_PROPERTY as the property name.

Overrides:

activate in class ViewMode

Parameters:

b - set true when mode was activated false otherwise

mouseShiftPressedLeft

public void mouseShiftPressedLeft(double x,
                                  double y)

Initiates the movement of the selected graph elements.

Overrides:

mouseShiftPressedLeft in class ViewMode

Parameters:

x - the x-coordinate of the mouse event in world coordinates.

y - the y-coordinate of the mouse event in world coordinates.

mousePressedLeft

public void mousePressedLeft(double x,
                             double y)

Initiates the movement of the selected graph elements.

Overrides:

mousePressedLeft in class ViewMode

Parameters:

x - the x-coordinate of the mouse event in world coordinates.

y - the y-coordinate of the mouse event in world coordinates.

mouseShiftReleasedLeft

public void mouseShiftReleasedLeft(double x,
                                   double y)

Terminates the movements of the selected graph elements.

Overrides:

mouseShiftReleasedLeft in class ViewMode

Parameters:

x - the x-coordinate of the mouse event in world coordinates.

y - the y-coordinate of the mouse event in world coordinates.

mouseReleasedLeft

public void mouseReleasedLeft(double x,
                              double y)

Terminates the movements of the selected graph elements.

Overrides:

mouseReleasedLeft in class ViewMode

Parameters:

x - the x-coordinate of the mouse event in world coordinates.

y - the y-coordinate of the mouse event in world coordinates.

mouseDraggedLeft

public void mouseDraggedLeft(double x,
                             double y)

Moves the selected graph elements around.

Overrides:

mouseDraggedLeft in class ViewMode

Parameters:

x - the x-coordinate of the mouse event in world coordinates.

y - the y-coordinate of the mouse event in world coordinates.

selectionMoveStarted

protected void selectionMoveStarted(double x,
                                    double y)

Performs an action when the selection is about to be moved. By default this method does nothing. Subclasses may want to override this.

selectionOnMove

protected void selectionOnMove(double dx,
                               double dy,
                               double x,
                               double y)

Performs an action when the selection is moving. By default this method does nothing. Subclasses may want to override this.

selectionMovedAction

protected void selectionMovedAction(double dx,
                                    double dy,
                                    double x,
                                    double y)

Performs an action after the selection was moved. By default this method does nothing. Subclasses may want to override this.

getNodesToBeMoved

protected NodeList getNodesToBeMoved()

Returns the nodes that should will be moved by this view mode. By default the selected nodes of the graph will be returned.

getBendsToBeMoved

protected BendList getBendsToBeMoved()

Returns the bends that should will be moved by this view mode. By default the selected bends of the graph will be returned.

isOrthogonalRouting

protected boolean isOrthogonalRouting(Edge edge)

Determines whether the given edge instance should be routed orthogonally. This implementation uses the DataProvider bound to the current graph via the EditMode.ORTHOGONAL_ROUTING_DPKEY data provider key to determine whether the given edge should be routed orthogonally.

Parameters:

edge - the edge to decide

Returns:

true if the edge should be routed orthogonally.

See Also:

EditMode.isOrthogonalRouting(y.base.Edge)

cancelEditing

public void cancelEditing()
                   throws UnsupportedOperationException

Description copied from class: ViewMode

This can be used to cleanly exit an edit that is currently in progress.
The implementation and interpretation of "cancelling" is left to subclasses. This implementation does nothing but calls setEditing(false) if ViewMode.isEditing() returns true

Overrides:

cancelEditing in class ViewMode

Throws:

UnsupportedOperationException - if the editing cannot be cancelled for any reason.