…s/constraints

…s/constraints

Empty stub for setStaticConstraint was added to the LanguageServerExtension.
refreshLayout was added to the LanguageServerExtension and implemented. It is called in order that nodes snap back if no constraint was set.
Additionally, methods were added to shorten the retrieval and setting of constraints.

The last commit did not work without the StaticConstraint class that I forgot to commit

Deletion of layer and position constraints is now possible. For this nullify methods are added to ConstraintsUtils. Some javadocs are added or extended in ConstraintsUtils.

You can now delete a StaticConstraint. Furthermore, the Language Server Extension expects now an instance of DeleteConstraint  for delete messages.

…s/constraints

…ObjectOrientation for reval

Constraints: Fixes branch

…l shifting strategy

The reevaluation that needs to be applied when position constraints are set should work now. Additionally, reevaluation for block shifting is probably functionable.
However,  it does not fit to our current shifting in Interactive Layout.
constraints: intermediate commit

constraints: removes printlns, organizes imports

Bugfix: Reeval uses the parent of the target now instead of the viewModel's root. in order to get the nodes of the same hierachical level. EmptyLayerReevaluation should become an optional reeval now that the system is able to handle offsets in layer constraints. It is commented out for now. setCoordinatesDepthFirst is created. It will be used to fix a layer assignment bug for hierarchical graphs.

property is also set for the root of the graph

The client now sends the new posId/layerId and the new layerCons/posCons in its messages. Ergo you don't need to transform the posCons to the posId anymore. The method for this is deleted. The change requires that the message object classes are extended.

…s/constraints

nodes are in the correct layer even when some nodes are bigger as usual because of children

Conflicts:
	plugins-dev/de.cau.cs.kieler.graphs.hierarchicalViews/plugin.xml

Deletes not needed code in getNodesOfLayer(), basically reverting it to an older state. Deletes the getLayering() stub that is not needed. Creates and implements a getAdjacentNodes() method.
Fixes a stackoverflow that was caused by the shift reeval.
Fixes that the shift reeval didn't work with layer constraints > count of layers.

…s/constraints

When a constraint is set the methods now check whther the parent is null. This should guard against a specific bug.
A first draw of one validate method is implemented, but not used.
The not working shift reevaluation is outcommented.
Two todos added.
One not used method deleted.

…s/constraints

Conflicts:
	plugins/de.cau.cs.kieler.klighd.lsp/src/de/cau/cs/kieler/klighd/lsp/KGraphDiagramGenerator.xtend
	plugins/de.cau.cs.kieler.klighd.lsp/src/de/cau/cs/kieler/klighd/lsp/KGraphDiagramUpdater.xtend
	plugins/de.cau.cs.kieler.klighd.lsp/src/de/cau/cs/kieler/klighd/lsp/model/KGraphModel.xtend

the build.

Conflicts:
	build/de.cau.cs.kieler.pragmatics.targetplatform/de.cau.cs.kieler.pragmatics.targetplatform.target
	plugins/de.cau.cs.kieler.klighd.lsp/src/de/cau/cs/kieler/klighd/lsp/KGraphLayoutEngine.xtend

server

This is inspired by the kieler.language.server, but stripped of all
non-pragmatics content. So this language server supports the .kgt and
the .elkt languages and diagram features.

target platform

check by replacing the create extension by an own hash map
implementation with the same external API.

Conflicts:
	plugins/de.cau.cs.kieler.kgraph.language.server/META-INF/MANIFEST.MF