ExpandCollapseIcon.java

package jetbrains.mps.editor.contextActionsTool.pluginSolution.plugin;

/*Generated by MPS */

import javax.swing.Icon;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.geom.GeneralPath;
import java.awt.Color;

public class ExpandCollapseIcon implements Icon {
  private boolean collapsed;
  public ExpandCollapseIcon(boolean collapsed1) {
    collapsed = collapsed1;
  }
  @Override
  public int getIconHeight() {
    return 8;
  }
  @Override
  public int getIconWidth() {
    return getIconHeight();
  }
  @Override
  public void paintIcon(Component component, Graphics g_, int x, int y) {
    Graphics2D g = ((Graphics2D) g_);
    GeneralPath shape = new GeneralPath();
    shape.moveTo(x, y);
    int w = getIconWidth();
    int h = getIconHeight();
    if (collapsed) {
      w--;
      shape.lineTo(x + w, y + 0.5 * h);
      shape.lineTo(x, y + h);
    } else {
      h--;
      shape.lineTo(x + w, y);
      shape.lineTo(x + 0.5 * w, y + h);
    }
    shape.closePath();
    g.setColor(Color.GRAY);
    g.fill(shape);
  }
}