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BlueSizeConstraintProvider.java
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BlueSizeConstraintProvider.java
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/****************************************************************************
**
** 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.sizeconstraintprovider;
import com.yworks.yfiles.geometry.IRectangle;
import com.yworks.yfiles.geometry.RectD;
import com.yworks.yfiles.geometry.SizeD;
import com.yworks.yfiles.graph.INode;
import com.yworks.yfiles.view.input.INodeSizeConstraintProvider;
/**
* An {@link INodeSizeConstraintProvider} that prevents shrinking of
* nodes. Additionally, neither side of the node can become larger than
* three times its initial size in each resizing operation.
*/
class BlueSizeConstraintProvider implements INodeSizeConstraintProvider {
/**
* Returns the current node size to prevent the shrinking of nodes.
*/
public SizeD getMinimumSize(INode item) {
return item.getLayout().toSizeD();
}
/**
* Returns three times the current node size.
*/
public SizeD getMaximumSize(INode item) {
IRectangle layout = item.getLayout();
return new SizeD(layout.getWidth() * 3, layout.getHeight() * 3);
}
/**
* Returns an empty rectangle since this area is not constraint.
*/
public RectD getMinimumEnclosedArea(INode item) {
return RectD.EMPTY;
}
}