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java.lang.Object | +--org.eclipse.gef.editpolicies.AbstractEditPolicy | +--org.eclipse.gef.editpolicies.GraphicalEditPolicy | +--org.eclipse.gef.editpolicies.LayoutEditPolicy | +--org.eclipse.gef.editpolicies.ConstrainedLayoutEditPolicy | +--org.eclipse.gef.editpolicies.XYLayoutEditPolicy
An EditPolicy for use with Figures
in XYLayout
. The constraint for
XYLayout is a Rectangle
.
Created on :Nov 12, 2002
Field Summary |
Fields inherited from interface org.eclipse.gef.EditPolicy |
COMPONENT_ROLE, CONNECTION_BENDPOINTS_ROLE, CONNECTION_ENDPOINTS_ROLE, CONNECTION_ROLE, CONTAINER_ROLE, DIRECT_EDIT_ROLE, GRAPHICAL_NODE_ROLE, LAYOUT_ROLE, NODE_ROLE, PRIMARY_DRAG_ROLE, SELECTION_FEEDBACK_ROLE, TREE_CONTAINER_ROLE |
Fields inherited from interface org.eclipse.gef.RequestConstants |
REQ_ADD, REQ_ALIGN, REQ_ALIGN_CHILDREN, 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 | |
XYLayoutEditPolicy()
|
Method Summary | |
protected Object |
getConstraintFor(ChangeBoundsRequest request,
GraphicalEditPart child)
Overridden to prevent sizes from becoming too small, and to prevent preferred sizes from getting lost. |
Object |
getConstraintFor(Point p)
Returns a Rectangle at the given Point with width and height of -1. |
Object |
getConstraintFor(Rectangle r)
Returns a new Rectangle equivalent to the passed Rectangle. |
protected Rectangle |
getCurrentConstraintFor(GraphicalEditPart child)
Retrieves the child's current constraint from the LayoutManager . |
protected Point |
getLayoutOrigin()
Returns XYLayout.getOrigin(IFigure) . |
protected Dimension |
getMinimumSizeFor(GraphicalEditPart child)
Determines the minimum size that the specified child can be resized to. |
protected void |
showSizeOnDropFeedback(CreateRequest request)
Places the feedback rectangle where the User indicated. |
Methods inherited from class org.eclipse.gef.editpolicies.ConstrainedLayoutEditPolicy |
createAddCommand, createChangeConstraintCommand, createChildEditPolicy, getAddCommand, getAlignChildrenCommand, getCommand, getConstraintFor, getMoveChildrenCommand, getResizeChildrenCommand, translateToModelConstraint |
Methods inherited from class org.eclipse.gef.editpolicies.LayoutEditPolicy |
activate, createListener, deactivate, decorateChild, decorateChildren, eraseDragTargetFeedback, eraseLayoutTargetFeedback, eraseSizeOnDropFeedback, eraseTargetFeedback, getCreateCommand, getDeleteDependantCommand, getLayoutContainer, getOrphanChildrenCommand, getSizeOnDropFeedback, getTargetEditPart, setListener, showDragTargetFeedback, showLayoutTargetFeedback, showTargetFeedback |
Methods inherited from class org.eclipse.gef.editpolicies.GraphicalEditPolicy |
addFeedback, getHostFigure, getLayer, removeFeedback |
Methods inherited from class org.eclipse.gef.editpolicies.AbstractEditPolicy |
debugFeedback, eraseSourceFeedback, getHost, setHost, showSourceFeedback, toString, understandsRequest |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
public XYLayoutEditPolicy()
Method Detail |
public Object getConstraintFor(Rectangle r)
getConstraintFor
in class ConstrainedLayoutEditPolicy
r
- the input Rectangle
public Object getConstraintFor(Point p)
XYLayout
uses width or height equal to '-1' to mean use the figure's
preferred size.
getConstraintFor
in class ConstrainedLayoutEditPolicy
p
- the input Point
protected Object getConstraintFor(ChangeBoundsRequest request, GraphicalEditPart child)
getMinimumSizeFor(GraphicalEditPart)
.
getConstraintFor
in class ConstrainedLayoutEditPolicy
request
- the ChangeBoundsRequestchild
- the child EditPart for which the constraint should be generated
ConstrainedLayoutEditPolicy.getConstraintFor(ChangeBoundsRequest,
GraphicalEditPart)
protected Rectangle getCurrentConstraintFor(GraphicalEditPart child)
LayoutManager
.
child
- the child
protected Point getLayoutOrigin()
XYLayout.getOrigin(IFigure)
.
getLayoutOrigin
in class ConstrainedLayoutEditPolicy
ConstrainedLayoutEditPolicy.getLayoutOrigin()
protected Dimension getMinimumSizeFor(GraphicalEditPart child)
getConstraintFor(ChangeBoundsRequest, GraphicalEditPart)
. By default,
a small Dimension
is returned.
child
- the child
protected void showSizeOnDropFeedback(CreateRequest request)
showSizeOnDropFeedback
in class LayoutEditPolicy
request
- the CreateRequestLayoutEditPolicy.showSizeOnDropFeedback(CreateRequest)
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Eclipse GEF 2.1 |
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