BaseRenderer.java

package jetbrains.mps.ide.editor.util.renderer;

/*Generated by MPS */

import com.intellij.ui.ColoredListCellRenderer;
import javax.swing.JList;
import java.awt.Color;
import com.intellij.ui.SimpleTextAttributes;
import java.awt.Font;
import com.intellij.util.ui.UIUtil;
import org.jetbrains.annotations.Nullable;
import javax.swing.Icon;

public abstract class BaseRenderer<T> extends ColoredListCellRenderer {
  protected BaseRenderer() {
  }

  protected void customizeCellRenderer(JList list, Object value, int i, boolean index, boolean selected) {
    T element = (T) value;
    String name = getElementText(element);
    Color color = list.getForeground();
    SimpleTextAttributes nameAttributes = new SimpleTextAttributes(Font.PLAIN, color);
    assert name != null : "Null name for PSI element " + element;
    append(name, nameAttributes);
    setIcon(getIcon(element));
    String containerText = getContainerText(element, name);
    if (containerText != null) {
      append(" " + containerText, new SimpleTextAttributes(Font.PLAIN, Color.GRAY));
    }
    setPaintFocusBorder(false);
    setBackground((selected ? UIUtil.getListSelectionBackground() : UIUtil.getListBackground()));
  }

  protected abstract String getElementText(T element);
  @Nullable
  protected abstract String getContainerText(T element, final String name);
  protected abstract Icon getIcon(T element);
}