/*對話框場景類的頭文件*/
#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:
	//注冊觸摸事件，實現(xiàn)ccTouchBegan()方法
	void registerWithTouchDispatcher();
	bool ccTouchBegan(CCTouch * touch,CCEvent * pevent);
	//在彈出的對話框上加倆個按鈕，以下的函數(shù)是對應(yīng)的按鈕的處理事件
	void yesButton(CCObject * object);
	void noButton(CCObject * object);
	//設(shè)置對話框的title
	void setTitle();
	//設(shè)置對話框的文本內(nèi)容
	void setContent();
	//m_size代表的是對話框背景的大小
	CCSize m_size;
	//對話框的背景精靈
	CCSprite * m_bgSprite;
};
#endif

/*對話框場景類的具體實現(xiàn)*/
#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();

		//設(shè)置這個層的背景圖片，并且設(shè)置其位置為整個屏幕的中點
		CCSprite * background = CCSprite::create("background.png");
		m_bgSprite = background;
		background->setPosition(ccp(winSize.width/2,winSize.height/2));
		this->addChild(background);

		//獲得背景圖片的大小
		CCSize contentSize = background->getContentSize();
		m_size = contentSize;

		//添加倆個菜單在這個層中
		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的值為-128，代表的是菜單按鈕的觸摸優(yōu)先級
		//設(shè)置menu優(yōu)先級，這里設(shè)置為普通menu的二倍減一，原因看下邊
		menu->setTouchPriority(kCCMenuHandlerPriority*2-1);

		background->addChild(menu);

		//設(shè)置題目和文本內(nèi)容
		this->setTitle();
		this->setContent();

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

	return bRet;
}

void PopScene::registerWithTouchDispatcher()
{
	//kCCMenuHandlerPriority=-128，將這個值設(shè)置為-128的二倍，可以比下邊的層的優(yōu)先級高
	//而且ccTouchBegan的返回值為true，說明其他的層將接受不到這個觸摸消息了，只有這個層上邊的
	//菜單的優(yōu)先級比他還要打，所以它上邊的菜單是可以接收到觸摸消息的
	CCDirector::sharedDirector()->getTouchDispatcher()->addTargetedDelegate(this,
		kCCMenuHandlerPriority*2,true);
}

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

//點擊菜單按鈕的時候調(diào)用的事件處理函數(shù)
void PopScene::yesButton(CCObject * object)
{
	this->removeFromParentAndCleanup(true);
}

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

//設(shè)置這個層的題目
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);
}

//設(shè)置層的內(nèi)容
void PopScene::setContent()
{
	CCLabelTTF * content = CCLabelTTF::create("hello! everyone,welcome to www.jb51.net",
		"",24);
	content->setPosition(ccp(m_size.width/2,m_size.height/2));
	//設(shè)置ttf的文本域
	content->setDimensions(CCSize(this->m_size.width-60,this->m_size.height-100));
	//設(shè)置ttf的水平對齊方式
  content->setHorizontalAlignment(kCCTextAlignmentLeft);

	m_bgSprite->addChild(content);
}

//helloworld中按鈕的回調(diào)函數(shù)
void HelloWorld::menuCloseCallback(CCObject* pSender)
{
	PopScene* popLayer = PopScene::create();
	this->addChild(popLayer);
}