y.layout.hierarchic.incremental
Interface Sequencer

All Known Implementing Classes:

AsIsSequencer, DefaultLayerSequencer, GivenSequenceSequencer

public interface Sequencer

This interface is used by HierarchicLayouter to calculate the node orders of nodes within the layers in a Layers object. Implementations are used during the second phase of the hierarchic layout process.

See Also:

HierarchicLayouter.setSequencer(Sequencer), IncrementalHierarchicLayouter.setFixedElementsSequencer(Sequencer), IncrementalHierarchicLayouter.setFromScratchSequencer(Sequencer)

Method Summary

void	sequenceNodeLayers(LayoutGraph graph, Layers layers, LayoutDataProvider ldp, ItemFactory itemFactory) Called by HierarchicLayouter during the second phase.

Method Detail

sequenceNodeLayers

void sequenceNodeLayers(LayoutGraph graph,
                        Layers layers,
                        LayoutDataProvider ldp,
                        ItemFactory itemFactory)

Called by HierarchicLayouter during the second phase. Calculates a sequence of the nodes in layers and finally writes back the calculated sequence using the Layer.setNodeOrder(y.base.YList) method.

Parameters:

graph - the graph that contains the elements from layers

layers - the Layer implementation that holds the Layers for sequencing

ldp - the LayoutDataProvider that provides the necessary NodeData and EdgeData

itemFactory - an ItemFactory implementation that can be used to modify the graph consistently