Package lupos.gui.operatorgraph.arrange

Source Code of lupos.gui.operatorgraph.arrange.GraphRow

/**
* Copyright (c) 2013, Institute of Information Systems (Sven Groppe and contributors of LUPOSDATE), University of Luebeck
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
* following conditions are met:
*
*   - Redistributions of source code must retain the above copyright notice, this list of conditions and the following
*     disclaimer.
*   - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
*     following disclaimer in the documentation and/or other materials provided with the distribution.
*   - Neither the name of the University of Luebeck nor the names of its contributors may be used to endorse or promote
*     products derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT HOLDER OR CONTRIBUTORS 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 lupos.gui.operatorgraph.arrange;

import java.util.ArrayList;
import java.util.Collection;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;

import lupos.gui.operatorgraph.GraphBox;
import lupos.gui.operatorgraph.OperatorGraph;
import lupos.gui.operatorgraph.graphwrapper.GraphWrapper;

public class GraphRow {
  private final List<GraphBox> boxes; // holds the boxes of the row
  private final int y;
  private int height = 0;
  private final OperatorGraph parent;

  public GraphRow(final OperatorGraph parent, final int y) {
    this.parent = parent;
    this.y = y;
    this.boxes = new LinkedList<GraphBox>();
  }

  public GraphRow(final OperatorGraph parent, final int y, final int initialSize) {
    this.parent = parent;
    this.y = y;
    this.boxes = new ArrayList<GraphBox>(initialSize);
  }

  /**
   * Adds a GraphBox to the current row.
   *
   * @param b
   *            box to add
   */
  public void add(final GraphBox b) {

    // set new box start position...
    if(this.boxes.isEmpty()) { // no box in the row, yet...
      b.setX((int) Math.ceil(this.parent.PADDING));
    }
    else { // already boxes in the row...
      // get last box in row...
      final GraphBox last = this.boxes.get(this.boxes.size() - 1);

      b.setX(last.getX() + last.width + (int) Math.ceil(this.parent.getSPACING_X()));
    }

    b.setY(this.y); // move box in y-direction into the row

    this.boxes.add(b); // add new box to boxes list

    // set row height to highest height in the row...
    this.height = Math.max(this.height, b.height);
  }

  public void addAllWithoutUpdatingParentsSize(final Collection<GraphWrapper> cgw, final Map<GraphWrapper, GraphBox> boxesMap) {
    // last box in the row
    GraphBox last = (this.boxes.isEmpty()) ? null : this.boxes.get(this.boxes.size() - 1);

    for(final GraphWrapper gw : cgw) {
      final GraphBox b = boxesMap.get(gw);

      // set new box start position...
      if(last == null) { // no box in the row, yet...
        b.setXWithoutUpdatingParentsSize((int) Math.ceil(this.parent.PADDING));
      }
      else { // already boxes in the row...
        b.setXWithoutUpdatingParentsSize(last.getX() + last.width + (int) Math.ceil(this.parent.getSPACING_X()));
      }

      b.setYWithoutUpdatingParentsSize(this.y); // move box in y-direction into the row

      this.boxes.add(b); // add new box to boxes list

      // set row height to highest height in the row
      this.height = Math.max(this.height, b.height);

      last = b;
    }
  }

  /**
   * Centers the current row.
   *
   * @param center
   *            the center of the largest row
   */
  public void center(final int center) {
    final int offset = center - (this.getWidth() / 2);

    // walk through boxes of the row...
    for(final GraphBox box : this.boxes) {
      box.setX(box.getX() + offset);
    }
  }

  public void centerWithoutUpdatingParentsSize(final int center) {
    final int offset = center - (this.getWidth() / 2);

    // walk through boxes of the row...
    for(final GraphBox box : this.boxes) {
      box.setXWithoutUpdatingParentsSize(box.getX() + offset);
    }
  }

  public List<GraphBox> getBoxes() {
    return this.boxes;
  }

  public int getHeight() {
    return this.height;
  }

  public int getWidth() {
    if(this.boxes.size()==0){
      return 0;
    }
    GraphBox mostLeft = this.boxes.get(0);
    GraphBox mostRight = this.boxes.get(0);

    for(int i = 1; i < this.boxes.size(); ++i) {
      final GraphBox tmpBox = this.boxes.get(i);

      if(tmpBox.getX() < mostLeft.getX()) {
        mostLeft = tmpBox;
      }

      if(tmpBox.getX() + tmpBox.width > mostRight.getX() + mostRight.width) {
        mostRight = tmpBox;
      }
    }

    final int mostRightPosition = mostRight.getX() + mostRight.width;

    return mostRightPosition - mostLeft.getX() + 2 * (int) Math.ceil(this.parent.getSPACING_X());
  }

  public void removeBox(final GraphBox box) {
    this.boxes.remove(box);
  }

  public int getY() {
    return this.y;
  }
}
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