TGEditorManager.java

package org.herac.tuxguitar.gui.editors;

import java.util.ArrayList;
import java.util.List;

import org.herac.tuxguitar.song.models.TGBeat;

public class TGEditorManager {

  private List<TGExternalBeatViewerListener> beatViewerListeners;
  private List<TGRedrawListener> redrawListeners;
  private List<TGUpdateListener> updateListeners;

  public TGEditorManager() {
    this.redrawListeners = new ArrayList<TGRedrawListener>();
    this.updateListeners = new ArrayList<TGUpdateListener>();
    this.beatViewerListeners = new ArrayList<TGExternalBeatViewerListener>();
  }

  public void addBeatViewerListener(TGExternalBeatViewerListener listener) {
    if (!this.beatViewerListeners.contains(listener)) {
      this.beatViewerListeners.add(listener);
    }
  }

  public void addRedrawListener(TGRedrawListener listener) {
    if (!this.redrawListeners.contains(listener)) {
      this.redrawListeners.add(listener);
    }
  }

  public void addUpdateListener(TGUpdateListener listener) {
    if (!this.updateListeners.contains(listener)) {
      this.updateListeners.add(listener);
    }
  }

  public void doRedraw(int type) {
    for (int i = 0; i < this.redrawListeners.size(); i++) {
      TGRedrawListener listener = (TGRedrawListener) this.redrawListeners
          .get(i);
      listener.doRedraw(type);
    }
  }

  public void doUpdate(int type) {
    for (int i = 0; i < this.updateListeners.size(); i++) {
      TGUpdateListener listener = (TGUpdateListener) this.updateListeners
          .get(i);
      listener.doUpdate(type);
    }
  }

  public void hideExternalBeat() {
    for (int i = 0; i < this.beatViewerListeners.size(); i++) {
      TGExternalBeatViewerListener listener = (TGExternalBeatViewerListener) this.beatViewerListeners
          .get(i);
      listener.hideExternalBeat();
    }
  }

  public void removeBeatViewerListener(TGExternalBeatViewerListener listener) {
    if (this.beatViewerListeners.contains(listener)) {
      this.beatViewerListeners.remove(listener);
    }
  }

  public void removeRedrawListener(TGRedrawListener listener) {
    if (this.redrawListeners.contains(listener)) {
      this.redrawListeners.remove(listener);
    }
  }

  public void removeUpdateListener(TGUpdateListener listener) {
    if (this.updateListeners.contains(listener)) {
      this.updateListeners.remove(listener);
    }
  }

  public void showExternalBeat(TGBeat beat) {
    for (int i = 0; i < this.beatViewerListeners.size(); i++) {
      TGExternalBeatViewerListener listener = (TGExternalBeatViewerListener) this.beatViewerListeners
          .get(i);
      listener.showExternalBeat(beat);
    }
  }
}