org.eclipse.gmf.runtime.diagram.ui.providers
Class TopDownProvider

java.lang.Object
  AbstractLayoutEditPartProvider
      org.eclipse.gmf.runtime.diagram.ui.providers.internal.DefaultProvider
          org.eclipse.gmf.runtime.diagram.ui.providers.TopDownProvider

public class TopDownProvider
extends org.eclipse.gmf.runtime.diagram.ui.providers.internal.DefaultProvider

Field Summary

Fields inherited from class org.eclipse.gmf.runtime.diagram.ui.providers.internal.DefaultProvider

layoutDefaultMargin, MAX_EDGE_PADDING, MIN_EDGE_END_POINTS_PADDING, MIN_EDGE_PADDING, minX, minY, mm, NODE_PADDING

Constructor Summary

TopDownProvider()

Method Summary

protected org.eclipse.gef.commands.Command	createEdgesChangeBoundsCommands(DirectedGraph g, Point diff)
protected org.eclipse.gef.commands.Command	createNodeChangeBoundCommands(DirectedGraph g, Point diff)
protected Rectangle	getNodeMetrics(Node n) getNodeMetrics Retrieves the node extend and position from the node object.
org.eclipse.gef.commands.Command	layoutEditParts(java.util.List selectedObjects, IAdaptable layoutHint)
protected void	setLayoutDefaultMargin(int newMargin)
protected Rectangle	translateFromGraph(Rectangle rect) Retrieves the logical extent and position from the given rectangle.
protected Rectangle	translateToGraph(Rectangle r) Retrieves the extent and position from the given logical rectangle in GEF graph coordinates.

Methods inherited from class org.eclipse.gmf.runtime.diagram.ui.providers.internal.DefaultProvider

addAnchorsCommands, build_borderNodes, build_edges, build_graph, build_nodes, buildBorderNodes, buildEdges, buildGraph, buildNodes, canCreateBorderNode, createGraph, createGraphLayout, createSubCommands, getMapMode, getRelevantConnections, initializeEdge, layoutEditParts, layoutTopDown, postProcessGraph, provides, routeThrough, setNodeMetrics, shouldHandleConnectableListItems, supportsBorderNodes, update_diagram

Methods inherited from class java.lang.Object

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

Constructor Detail

TopDownProvider

public TopDownProvider()

Method Detail

translateToGraph

protected Rectangle translateToGraph(Rectangle r)

Description copied from class: org.eclipse.gmf.runtime.diagram.ui.providers.internal.DefaultProvider

Retrieves the extent and position from the given logical rectangle in GEF graph coordinates. Defined as abstract to allow subclasses to implement to perform a transformation on the values stored in the node. i.e. support for Left-Right layout as opposed to Top-Down.

Specified by:

translateToGraph in class org.eclipse.gmf.runtime.diagram.ui.providers.internal.DefaultProvider

Returns:

Rectangle in graph coordinates.

translateFromGraph

protected Rectangle translateFromGraph(Rectangle rect)

Description copied from class: org.eclipse.gmf.runtime.diagram.ui.providers.internal.DefaultProvider

Retrieves the logical extent and position from the given rectangle. Defined as abstract to allow subclasses to implement to perform a transformation on the values stored in the node. i.e. support for Left-Right layout as opposed to Top-Down.

Specified by:

translateFromGraph in class org.eclipse.gmf.runtime.diagram.ui.providers.internal.DefaultProvider

Parameters:

rect - Rectangle that has the values to be translated in graph (pixel) coordinates.

Returns:

Rectangle in logical coordinates.

layoutEditParts

public org.eclipse.gef.commands.Command layoutEditParts(java.util.List selectedObjects,
                                                        IAdaptable layoutHint)

Overrides:

layoutEditParts in class org.eclipse.gmf.runtime.diagram.ui.providers.internal.DefaultProvider

createEdgesChangeBoundsCommands

protected org.eclipse.gef.commands.Command createEdgesChangeBoundsCommands(DirectedGraph g,
                                                                           Point diff)

Overrides:

createEdgesChangeBoundsCommands in class org.eclipse.gmf.runtime.diagram.ui.providers.internal.DefaultProvider

createNodeChangeBoundCommands

protected org.eclipse.gef.commands.Command createNodeChangeBoundCommands(DirectedGraph g,
                                                                         Point diff)

Overrides:

createNodeChangeBoundCommands in class org.eclipse.gmf.runtime.diagram.ui.providers.internal.DefaultProvider

getNodeMetrics

protected Rectangle getNodeMetrics(Node n)

Description copied from class: org.eclipse.gmf.runtime.diagram.ui.providers.internal.DefaultProvider

getNodeMetrics Retrieves the node extend and position from the node object. Defined as abstract to allow subclasses to implement to perform a transformation on the values stored in the node. i.e. support for Left-Right layout as opposed to Top-Down.

Overrides:

getNodeMetrics in class org.eclipse.gmf.runtime.diagram.ui.providers.internal.DefaultProvider

Parameters:

n - Node that has the metrics values to be retrieved.

Returns:

Rectangle that represents the location and extend of the Node.

setLayoutDefaultMargin

protected void setLayoutDefaultMargin(int newMargin)