Package org.eclipse.gef.editpolicies
Class XYLayoutEditPolicy
- java.lang.Object
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- org.eclipse.gef.editpolicies.AbstractEditPolicy
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- org.eclipse.gef.editpolicies.GraphicalEditPolicy
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- org.eclipse.gef.editpolicies.LayoutEditPolicy
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- org.eclipse.gef.editpolicies.ConstrainedLayoutEditPolicy
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- org.eclipse.gef.editpolicies.XYLayoutEditPolicy
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- All Implemented Interfaces:
EditPolicy
,RequestConstants
public abstract class XYLayoutEditPolicy extends ConstrainedLayoutEditPolicy
An EditPolicy for use withFigures
inXYLayout
. The constraint for XYLayout is aRectangle
. Created on :Nov 12, 2002- Since:
- 2.0
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Field Summary
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Fields inherited from class org.eclipse.gef.editpolicies.ConstrainedLayoutEditPolicy
UNSPECIFIED_SIZE
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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
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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
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Constructor Summary
Constructors Constructor Description XYLayoutEditPolicy()
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Method Summary
All Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description java.lang.Object
getConstraintFor(org.eclipse.draw2d.geometry.Point p)
Returns a Rectangle at the given Point with width and height of -1.java.lang.Object
getConstraintFor(org.eclipse.draw2d.geometry.Rectangle r)
Returns a new Rectangle equivalent to the passed Rectangle.protected java.lang.Object
getConstraintFor(Request request, GraphicalEditPart child, org.eclipse.draw2d.geometry.Rectangle rect)
Overridden to preserve existing width and height (as well as preferred sizes) during MOVE requests.protected org.eclipse.draw2d.geometry.Rectangle
getCurrentConstraintFor(GraphicalEditPart child)
Retrieves the child's current constraint from theLayoutManager
.protected org.eclipse.draw2d.geometry.Point
getLayoutOrigin()
ReturnsXYLayout.getOrigin(IFigure)
.protected org.eclipse.draw2d.geometry.Dimension
getMinimumSizeFor(GraphicalEditPart child)
Deprecated.Clients should no longer extend this method.protected org.eclipse.draw2d.XYLayout
getXYLayout()
void
setXyLayout(org.eclipse.draw2d.XYLayout xyLayout)
protected void
showSizeOnDropFeedback(CreateRequest request)
Shows size-on-drop feedback during creation.-
Methods inherited from class org.eclipse.gef.editpolicies.ConstrainedLayoutEditPolicy
createAddCommand, createAddCommand, createChangeConstraintCommand, createChangeConstraintCommand, createChildEditPolicy, getAddCommand, getAlignChildrenCommand, getChangeConstraintCommand, getCommand, getConstraintFor, getConstraintFor, getConstraintForClone, getMoveChildrenCommand, getResizeChildrenCommand, translateToModelConstraint
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Methods inherited from class org.eclipse.gef.editpolicies.LayoutEditPolicy
activate, createListener, createSizeOnDropFeedback, deactivate, decorateChild, decorateChildren, eraseLayoutTargetFeedback, eraseSizeOnDropFeedback, eraseTargetFeedback, getCloneCommand, getCreateCommand, getCreationFeedbackOffset, getDeleteDependantCommand, getLayoutContainer, getOrphanChildrenCommand, getSizeOnDropFeedback, getSizeOnDropFeedback, getTargetEditPart, setListener, showLayoutTargetFeedback, showTargetFeedback, translateFromAbsoluteToLayoutRelative, translateFromLayoutRelativeToAbsolute, undecorateChild, undecorateChildren
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Methods inherited from class org.eclipse.gef.editpolicies.GraphicalEditPolicy
addFeedback, getFeedbackLayer, getHostFigure, getLayer, removeFeedback
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Methods inherited from class org.eclipse.gef.editpolicies.AbstractEditPolicy
debugFeedback, eraseSourceFeedback, getHost, setHost, showSourceFeedback, toString, understandsRequest
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Method Detail
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getConstraintFor
protected java.lang.Object getConstraintFor(Request request, GraphicalEditPart child, org.eclipse.draw2d.geometry.Rectangle rect)
Overridden to preserve existing width and height (as well as preferred sizes) during MOVE requests.- Overrides:
getConstraintFor
in classConstrainedLayoutEditPolicy
rect
- the Rectangle relative to thelayout origin
- Returns:
- the constraint
- See Also:
ConstrainedLayoutEditPolicy.getConstraintFor(org.eclipse.gef.Request, org.eclipse.gef.GraphicalEditPart, org.eclipse.draw2d.geometry.Rectangle)
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getConstraintFor
public java.lang.Object getConstraintFor(org.eclipse.draw2d.geometry.Point p)
Returns a Rectangle at the given Point with width and height of -1.XYLayout
uses width or height equal to '-1' to mean use the figure's preferred size.- Specified by:
getConstraintFor
in classConstrainedLayoutEditPolicy
- Parameters:
p
- the input Point- Returns:
- a Rectangle
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getConstraintFor
public java.lang.Object getConstraintFor(org.eclipse.draw2d.geometry.Rectangle r)
Returns a new Rectangle equivalent to the passed Rectangle.- Specified by:
getConstraintFor
in classConstrainedLayoutEditPolicy
- Parameters:
r
- the input Rectangle- Returns:
- a copy of the input Rectangle
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getCurrentConstraintFor
protected org.eclipse.draw2d.geometry.Rectangle getCurrentConstraintFor(GraphicalEditPart child)
Retrieves the child's current constraint from theLayoutManager
.- Parameters:
child
- the child- Returns:
- the current constraint
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getLayoutOrigin
protected org.eclipse.draw2d.geometry.Point getLayoutOrigin()
ReturnsXYLayout.getOrigin(IFigure)
.- Overrides:
getLayoutOrigin
in classLayoutEditPolicy
- Returns:
- Point
- See Also:
LayoutEditPolicy.getLayoutOrigin()
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getXYLayout
protected org.eclipse.draw2d.XYLayout getXYLayout()
- Returns:
- the XYLayout layout manager set on the
container
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setXyLayout
public void setXyLayout(org.eclipse.draw2d.XYLayout xyLayout)
- Parameters:
xyLayout
- The xyLayout to set.
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showSizeOnDropFeedback
protected void showSizeOnDropFeedback(CreateRequest request)
Description copied from class:LayoutEditPolicy
Shows size-on-drop feedback during creation.- Overrides:
showSizeOnDropFeedback
in classLayoutEditPolicy
- Parameters:
request
- the CreateRequest- See Also:
LayoutEditPolicy.showSizeOnDropFeedback(org.eclipse.gef.requests.CreateRequest)
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getMinimumSizeFor
protected org.eclipse.draw2d.geometry.Dimension getMinimumSizeFor(GraphicalEditPart child)
Deprecated.Clients should no longer extend this method. Instead, the resize tracker, constructed by the 'satellite' primary drag edit policy should be parameterized with max and min size constraints.Determines the minimum size that the specified child can be resized to. Called fromConstrainedLayoutEditPolicy.getConstraintFor(ChangeBoundsRequest, GraphicalEditPart)
. By default, a smallDimension
is returned.- Parameters:
child
- the child- Returns:
- the minimum size
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