CopyNPasteManager.java

package Builder;

import java.util.ArrayList;
import java.util.List;

import Command.LDrawPart;
import Common.Vector3f;
import LDraw.Support.LDrawDirective;
import Notification.NotificationCenter;
import Notification.NotificationMessageT;
import UndoRedo.CopyDirectivesAction;
import UndoRedo.LDrawUndoRedoManager;
import Window.MOCBuilder;

public class CopyNPasteManager {
	private static CopyNPasteManager _instance = null;

	public synchronized static CopyNPasteManager getInstance() {
		if (_instance == null)
			_instance = new CopyNPasteManager();

		return _instance;
	}

	private CopyNPasteManager() {
		copyPartList = new ArrayList<LDrawPart>();
	}

	private ArrayList<LDrawPart> copyPartList;

	public void setCopyList(List<LDrawPart> list) {
		copyPartList.clear();

		for (LDrawPart part : MOCBuilder.getInstance().getAllPartInActiveModel(false)) {
			if (list.contains(part)) {
				LDrawPart copy = new LDrawPart();
				copy.initWithPartName(part.displayName(), new Vector3f());
				copy.setTransformationMatrix(part.transformationMatrix());
				copy.setLDrawColor(part.getLDrawColor());
				copyPartList.add(copy);
			}
		}
		
		BrickSelectionManager.getInstance().clearSelection();
		NotificationCenter.getInstance().postNotification(
				NotificationMessageT.CopyNPasteManagerUpdated);
	}

	public void setCutList(List<LDrawPart> list) {
		copyPartList.clear();
		for (LDrawPart part : BrickSelectionManager.getInstance()
				.getSelectedPartList()) {
			LDrawPart copy = new LDrawPart();
			copy.initWithPartName(part.displayName(), new Vector3f());
			copy.setTransformationMatrix(part.transformationMatrix());
			copy.setLDrawColor(part.getLDrawColor());
			copyPartList.add(copy);
		}
		MOCBuilder.getInstance().removeSelectedDirective();
		NotificationCenter.getInstance().postNotification(
				NotificationMessageT.CopyNPasteManagerUpdated);
	}

	public void paste(Vector3f pos) {
		if (copyPartList.size() == 0)
			return;
		BrickSelectionManager selectionManager = BrickSelectionManager
				.getInstance();
		MOCBuilder builder = MOCBuilder.getInstance();

		selectionManager.clearSelection();
		for (LDrawPart part : copyPartList) {
			LDrawPart copy = new LDrawPart();			
			copy.initWithPartName(part.displayName(), new Vector3f());
			copy.setTransformationMatrix(part.transformationMatrix());
			copy.setLDrawColor(part.getLDrawColor());
			builder.addDirectiveToWorkingFile(copy);
						
			selectionManager.addPartToSelection(copy);
		}
		Vector3f posDiff = pos.sub(selectionManager.getSelectedPartsCenter());
		LDrawPart part = selectionManager.getSelectedPartList().get(0);
		builder.moveDirectiveBy(part, posDiff);
		selectionManager.moveSelectedPartBy(part);
		ArrayList<LDrawDirective> directiveList = new ArrayList<LDrawDirective>(
				selectionManager.getSelectedPartList());
		CopyDirectivesAction action = new CopyDirectivesAction(builder,
				directiveList);
		LDrawUndoRedoManager.getInstance().pushUndoAction(action);
	}

	public boolean isEmptyClipboard() {
		return copyPartList.isEmpty();
	}
}