RotatedReshapeHandleProvider.java

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package complete.rotatablenodes;

import com.yworks.yfiles.graph.INode;
import com.yworks.yfiles.view.input.HandlePositions;
import com.yworks.yfiles.view.input.IHandle;
import com.yworks.yfiles.view.input.IInputModeContext;
import com.yworks.yfiles.view.input.IReshapeHandleProvider;
import com.yworks.yfiles.view.input.IReshapeHandler;

/**
 * Provides reshape handles for rotated nodes.
 */
public class RotatedReshapeHandleProvider implements IReshapeHandleProvider {

  private final INode node;
  private final IReshapeHandler reshapeHandler;

  /**
   * Initialize a new instance for a given node.
   */
  RotatedReshapeHandleProvider(INode node) {
    this.node = node;
    //use a reshape handler to properly handle implicit resizing of parent group nodes
    reshapeHandler = node.lookup(IReshapeHandler.class);
  }

  /**
   * Returns all eight positions around a node.
   */
  @Override
  public HandlePositions getAvailableHandles( IInputModeContext inputModeContext) {
    return HandlePositions.BORDER;
  }

  /**
   * Returns a {@link RotatedNodeResizeHandle} for the given position and node.
   */
  @Override
  public IHandle getHandle(IInputModeContext inputModeContext, HandlePositions position) {
    return new RotatedNodeResizeHandle(position, node, reshapeHandler, false);
  }
}