/**
* Sets up the current display of the RadialHierarchy view according to the specified parameters.
*
* @param drawingStateType DrawingState that shall be used.
* @param drawingStrategyType Default drawing strategy that shall be used.
* @param isNewSelection Determines if the selected element has been newly selected.
* @param rootElementID ID of current root element.
* @param selectedElementID ID of selected element.
* @param rootElementStartAngle Start angle of the root element.
* @param selectedElementStartAngle Start angle of the selected element.
* @param maxDisplayedHierarchyDepth Maximum hierarchy depth that shall be displayed.
*/
public void setupDisplay(
EDrawingStateType drawingStateType,
EPDDrawingStrategyType drawingStrategyType,
boolean isNewSelection,
int rootElementID,
int selectedElementID,
float rootElementStartAngle,
float selectedElementStartAngle,
int maxDisplayedHierarchyDepth) {
this.iMaxDisplayedHierarchyDepth = maxDisplayedHierarchyDepth;
bIsNewSelection = isNewSelection;
PartialDisc pdTemp = hashPartialDiscs.get(rootElementID);
drawingController.setDrawingState(drawingStateType);
drawingStrategyManager.setDefaultStrategy(drawingStrategyType);
if (pdTemp != null) {
setCurrentRootElement(pdTemp);
pdCurrentSelectedElement = hashPartialDiscs.get(selectedElementID);
pdCurrentRootElement.setCurrentStartAngle(rootElementStartAngle);
if (pdCurrentSelectedElement != null) {
pdCurrentSelectedElement.setCurrentStartAngle(selectedElementStartAngle);
}
}
setDisplayListDirty();
}
/**
* Updates the current root element according to the position of the upward navigation silder,
* i.e. a parent of the current root element with the hierarchy level of the slider position will
* be the new root element.
*/
private void updateHierarchyAccordingToNavigationSlider() {
PartialDisc pdNewRootElement =
pdCurrentRootElement.getParentWithLevel(upwardNavigationSlider.getSelectedValue());
if (pdNewRootElement != null) {
pdCurrentRootElement = pdNewRootElement;
bIsNewSelection = true;
PartialDisc pdSelectedElement =
drawingController.getCurrentDrawingState().getSelectedElement();
if (pdSelectedElement != null) {
pdCurrentSelectedElement = pdSelectedElement;
pdSelectedElement.setCurrentStartAngle(0);
}
navigationHistory.addNewHistoryEntry(
drawingController.getCurrentDrawingState(),
pdCurrentRootElement,
pdCurrentSelectedElement,
iMaxDisplayedHierarchyDepth);
setDisplayListDirty();
setNewSelection(SelectionType.SELECTION, pdCurrentSelectedElement);
}
}