PurpleNodeReshapeHandleProvider.java

/****************************************************************************
 **
 ** This demo file is part of yFiles for JavaFX 3.6.
 **
 ** Copyright (c) 2000-2023 by yWorks GmbH, Vor dem Kreuzberg 28,
 ** 72070 Tuebingen, Germany. All rights reserved.
 **
 ** yFiles demo files exhibit yFiles for JavaFX functionalities. Any redistribution
 ** of demo files in source code or binary form, with or without
 ** modification, is not permitted.
 **
 ** Owners of a valid software license for a yFiles for JavaFX version that this
 ** demo is shipped with are allowed to use the demo source code as basis
 ** for their own yFiles for JavaFX powered applications. Use of such programs is
 ** governed by the rights and conditions as set out in the yFiles for JavaFX
 ** license agreement.
 **
 ** THIS SOFTWARE IS PROVIDED ''AS IS'' AND ANY EXPRESS OR IMPLIED
 ** WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 ** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
 ** NO EVENT SHALL yWorks BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
 ** TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 ** PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 ** LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 ** NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 ** SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 **
 ***************************************************************************/
package input.reshapehandleproviderconfiguration;

import com.yworks.yfiles.graph.INode;
import com.yworks.yfiles.view.input.HandlePositions;
import com.yworks.yfiles.view.input.HandleTypes;
import com.yworks.yfiles.view.input.IEventRecognizer;
import com.yworks.yfiles.view.input.IHandle;
import com.yworks.yfiles.view.input.IInputModeContext;
import com.yworks.yfiles.view.input.IReshapeHandler;
import com.yworks.yfiles.view.input.NodeReshapeHandleProvider;
import com.yworks.yfiles.view.input.NodeReshapeHandlerHandle;
import com.yworks.yfiles.view.input.ReshapePolicy;

/**
 * A NodeReshapeHandleProvider for purple nodes that provides different handles for corners and borders.
 */
public class PurpleNodeReshapeHandleProvider extends NodeReshapeHandleProvider {
  public PurpleNodeReshapeHandleProvider(INode node, IReshapeHandler reshapeHandler) {
    super(node, reshapeHandler, HandlePositions.BORDER);
  }

  @Override
  public IHandle getHandle(IInputModeContext inputModeContext, HandlePositions position) {
    NodeReshapeHandlerHandle handle = new NodeReshapeHandlerHandle(getNode(), getReshapeHandler(), position);

    boolean atCorner = position.contains(HandlePositions.CORNERS);
    if (atCorner) {
      // handles at corners shall always keep the aspect ratio
      handle.setReshapePolicy(ReshapePolicy.PROJECTION);
      handle.setRatioReshapeRecognizer(IEventRecognizer.ALWAYS);
      handle.setType(HandleTypes.RESIZE);
    } else {
      // handles at the sides shall ignore the aspect ratio and use another handle visualization
      handle.setReshapePolicy(ReshapePolicy.NONE);
      handle.setRatioReshapeRecognizer(IEventRecognizer.NEVER);
      handle.setType(HandleTypes.WARP);
    }

    return handle;
  }

  
}