#include "animationmanager.h"
#include <QtCore/QAbstractAnimation>
#include <QtCore/QDebug>

// the universe's only animation manager
AnimationManager *AnimationManager::instance = NULL;

AnimationManager::AnimationManager()
{
}

AnimationManager *AnimationManager::self()
{
  if (!instance)
    instance = new AnimationManager;
  return instance;
}

void AnimationManager::registerAnimation(QAbstractAnimation *anim)
{
  QObject::connect(anim, SIGNAL(destroyed(QObject*)), this, SLOT(unregisterAnimation_helper(QObject*)));
  animations.append(anim);
}

void AnimationManager::unregisterAnimation_helper(QObject *obj)
{
  unregisterAnimation(static_cast<QAbstractAnimation*>(obj));
}

void AnimationManager::unregisterAnimation(QAbstractAnimation *anim)
{
  QObject::disconnect(anim, SIGNAL(destroyed(QObject*)), this, SLOT(unregisterAnimation_helper(QObject*)));
  animations.removeAll(anim);
}

void AnimationManager::unregisterAllAnimations()
{
  animations.clear();
}

void AnimationManager::pauseAll()
{
  foreach (QAbstractAnimation* animation, animations)
  {
    if (animation->state() == QAbstractAnimation::Running)
      animation->pause();
  }
}
void AnimationManager::resumeAll()
{
  foreach (QAbstractAnimation* animation, animations)
  {
    if (animation->state() == QAbstractAnimation::Paused)
      animation->resume();
  }
}