/*对话框场景类的头文件*/
#ifndef _POP_SCENE_H_
#define _POP_SCENE_H_
#include "cocos2d.h"

using namespace cocos2d;

class PopScene : public CCLayer
{
public:
 static CCScene * scene();
 bool init();
 CREATE_FUNC(PopScene);
private:
 //注册触摸事件，实现ccTouchBegan()方法
 void registerWithTouchDispatcher();
 bool ccTouchBegan(CCTouch * touch,CCEvent * pevent);
 //在弹出的对话框上加俩个按钮，以下的函数是对应的按钮的处理事件
 void yesButton(CCObject * object);
 void noButton(CCObject * object);
 //设置对话框的title
 void setTitle();
 //设置对话框的文本内容
 void setContent();
 //m_size代表的是对话框背景的大小
 CCSize m_size;
 //对话框的背景精灵
 CCSprite * m_bgSprite;
};
#endif

/*对话框场景类的具体实现*/
#include "PopScene.h"

CCScene * PopScene::scene()
{
 CCScene * scene = NULL;
 do
 {
  scene = CCScene::create();
  PopScene * layer = PopScene::create();
  scene->addChild(layer);
 }
 while(0);

 return scene;
}

bool PopScene::init()
{
 bool bRet = false;
 do
 {
  CC_BREAK_IF(!CCLayer::init());

  CCSize winSize = CCDirector::sharedDirector()->getWinSize();

  //设置这个层的背景图片，并且设置其位置为整个屏幕的中点
  CCSprite * background = CCSprite::create("background.png");
  m_bgSprite = background;
  background->setPosition(ccp(winSize.width/2,winSize.height/2));
  this->addChild(background);

  //获得背景图片的大小
  CCSize contentSize = background->getContentSize();
  m_size = contentSize;

  //添加俩个菜单在这个层中
  CCMenuItemImage * item1 = CCMenuItemImage::create("btn-play-normal.png",
   "btn-play-selected.png","",
   this,menu_selector(PopScene::yesButton));

  CCMenuItemImage * item2 = CCMenuItemImage::create("btn-highscores-normal.png",
   "btn-highscores-selected.png","",
   this,menu_selector(PopScene::noButton));

  CCMenu * menu = CCMenu::create(item1,item2,NULL);
  menu->alignItemsHorizontallyWithPadding(5);
  menu->setPosition(ccp(contentSize.width/2,contentSize.height/3));
  //kCCMenuHandlerPriority的值为-128，代表的是菜单按钮的触摸优先级
  //设置menu优先级，这里设置为普通menu的二倍减一，原因看下边
  menu->setTouchPriority(kCCMenuHandlerPriority*2-1);

  background->addChild(menu);

  //设置题目和文本内容
  this->setTitle();
  this->setContent();

  this->setTouchEnabled(true);
  bRet = true;
 }
 while(0);

 return bRet;
}

void PopScene::registerWithTouchDispatcher()
{
 //kCCMenuHandlerPriority=-128，将这个值设置为-128的二倍，可以比下边的层的优先级高
 //而且ccTouchBegan的返回值为true，说明其他的层将接受不到这个触摸消息了，只有这个层上边的
 //菜单的优先级比他还要打，所以它上边的菜单是可以接收到触摸消息的
 CCDirector::sharedDirector()->getTouchDispatcher()->addTargetedDelegate(this,
  kCCMenuHandlerPriority*2,true);
}

bool PopScene::ccTouchBegan(CCTouch * touch,CCEvent * pevent)
{
 return true;
}

//点击菜单按钮的时候调用的事件处理函数
void PopScene::yesButton(CCObject * object)
{
 this->removeFromParentAndCleanup(true);
}

void PopScene::noButton(CCObject * object)
{
 this->removeFromParentAndCleanup(true);
}

//设置这个层的题目
void PopScene::setTitle()
{
 //CCLabelTTF * title = CCLabelTTF::create("Tips","",24);
 CCLabelBMFont * title = CCLabelBMFont::create("Tips","bitmapFontChinese.fnt");
 title->setPosition(ccp(m_size.width/2,m_size.height-title->getContentSize().height/2));
 m_bgSprite->addChild(title);
}

//设置层的内容
void PopScene::setContent()
{
 CCLabelTTF * content = CCLabelTTF::create("hello! everyone,welcome to www.1sucai.cn",
  "",24);
 content->setPosition(ccp(m_size.width/2,m_size.height/2));
 //设置ttf的文本域
 content->setDimensions(CCSize(this->m_size.width-60,this->m_size.height-100));
 //设置ttf的水平对齐方式
  content->setHorizontalAlignment(kCCTextAlignmentLeft);

 m_bgSprite->addChild(content);
}

//helloworld中按钮的回调函数
void HelloWorld::menuCloseCallback(CCObject* pSender)
{
 PopScene* popLayer = PopScene::create();
 this->addChild(popLayer);
}