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1cocos2dx扩展库UI控件,CCControlSlider,CCScale9Sprite(九妹图),CCControlSwitch,CCControlButton

简介:  UI控件来自cocos2dx的扩展库,完善了UI方面的元素,使cocos2dx更加丰富多彩。使用扩展库需包含: #include “cocos-ext.h” USING_NS_CC_EXT; CCControlSlider CCControlSlider * sl

  1. UI控件来自cocos2dx的扩展库,完善了UI方面的元素,使cocos2dx更加丰富多彩。使用扩展库需包含:

#include “cocos-ext.h”

USING_NS_CC_EXT;

  1. CCControlSlider

CCControlSlider * slider = CCControlSlider::create(“sliderTrack.png”,”sliderProgress.png”,”sliderThumb.png”);

    第一个参数表示,slider滑动的轨道,即背景色。第二个参数表示滑动的进度。第三个参数表示拖动的按钮。

slider->setMaximumValue(2.0f);   //设置滑动最大值

slider->setMinimumValue(0.0f);   //设置滑动最小值

 

slider->setValue(0.5f);           //设置默认值

slider->setMaximumAllowedValue(1.2f);   //设置某一个范围内的最大值

slider->setMinimumAllowedValue(0.3f);   //设置某一个范围内的最小值

 

slider->addTargetWithActionForControlEvents(this,

cccontrol_selector(T12UI::controlCallback),

CCControlEventValueChanged);

设置事件的响应函数

typedef unsigned int CCControlEvent;

typedef void (CCObject::*SEL_CCControlHandler)(CCObject*, CCControlEvent);

#define cccontrol_selector(_SELECTOR)(SEL_CCControlHandler)(&_SELECTOR);

关于CCControlEvent

/** Kinds of possible events for the control objects. */

enum

{

    CCControlEventTouchDown           = 1 << 0,    // A touch-down event in the control.

    CCControlEventTouchDragInside     = 1 << 1,    // An event where a finger is dragged inside the bounds of the control.

    CCControlEventTouchDragOutside    = 1 << 2,    // An event where a finger is dragged just outside the bounds of the control.

    CCControlEventTouchDragEnter      = 1 << 3,    // An event where a finger is dragged into the bounds of the control.

    CCControlEventTouchDragExit       = 1 << 4,    // An event where a finger is dragged from within a control to outside its bounds.

    CCControlEventTouchUpInside       = 1 << 5,    // A touch-up event in the control where the finger is inside the bounds of the control.

    CCControlEventTouchUpOutside      = 1 << 6,    // A touch-up event in the control where the finger is outside the bounds of the control.

    CCControlEventTouchCancel         = 1 << 7,    // A system event canceling the current touches for the control.

    CCControlEventValueChanged        = 1 << 8      // A touch dragging or otherwise manipulating a control, causing it to emit a series of different values.

};

typedef unsigned int CCControlEvent;

  1. slider案例说明:

T12UI.h

#ifndef __T12UI_H__

#define __T12UI_H__

 

#include "cocos2d.h"

#include "TBack.h"

#include "cocos-ext.h"

USING_NS_CC;

USING_NS_CC_EXT;

 

class T12UI :public TBack

{

public:

    static CCScene * scene();

    CREATE_FUNC(T12UI);

    bool init();

 

    CCLabelAtlas * atlas;

 

    //slider的回调函数

    void sliderCallBack(CCObject* sender, CCControlEvent event);

};

 

#endif

T12UI.cpp

#include "T12UI.h"

#include "AppMacros.h"

#include "SimpleAudioEngine.h"

using namespace CocosDenshion;

 

CCScene *T12UI::scene()

{

    CCScene * scene = CCScene::create();

    T12UI * layer = T12UI::create();

    scene->addChild(layer);

    return scene;

}

 

//UI控件来自cocos2dx的扩展库,完善了UI方面的元素,使cocos2dx更加丰富多彩。使用扩展库需要包含

bool T12UI::init()

{

    TBack::init();

 

    //第一个参数表示slider滑动的轨道,即背景色。第二个参数表示滑动的进度。

    //第三个参数表示拖动的按钮

    CCControlSlider *slider = CCControlSlider::create("sliderTrack.png","sliderProgress.png","sliderThumb.png");

 

    //设置滑动最大值

    slider->setMaximumValue(2.0f);

    //设置滑动的最小值

    slider->setMinimumValue(0.0f);

 

    //设置默认值

    slider->setValue(0.5f);

    //设置某一范围内的最大值,当移动到了1.2之后移动不了了

    slider->setMaximumAllowedValue(1.2f);

    //设置某一范围内的最小值,向左移动到0.3之后移动不了了

    slider->setMinimumAllowedValue(0.3f);

    //设置slider的所在位置

    slider->setPosition(ccp(winSize.width / 2,winSize.height/2  - 30));

 

    slider->addTargetWithActionForControlEvents(

        this,

        cccontrol_selector(T12UI::sliderCallBack),

        CCControlEventValueChanged);

 

    CCString *str = CCString::createWithFormat("%.2g", slider->getValue());

    //第一个参数表示要显示的字符串

    //第二个参数表示从哪张图片中取值

    //第三个参数表示的是每个字的宽度width

    //第四个参数表示的是每个字的高度

    //第五个参数表示的是起始的字符

    /* creates the CCLabelAtlas with a string, a char map file(the atlas),

    the width and height of each element and the starting char of the atlas

    */

    atlas = CCLabelAtlas::create(

        str->getCString(),

        "fonts/fps_images.png",

        12,32,'.');

    atlas->setAnchorPoint(ccp(0.5,0.5));

    //设置字体的放大效果

    atlas->setScale(2.0f);

    atlas->setPosition(ccp(winSize.width / 2, winSize.height / 2 + 30));

    addChild(atlas);

 

    slider->setValue(1.3f);

   

    addChild(slider);

 

    return true;

}

 

//设置slider的回调函数

//这里的sender表示发送的一者

void T12UI::sliderCallBack(CCObject* sender, CCControlEvent event)

{

    CCControlSlider * slider = (CCControlSlider *)sender;

 

    CCString *str = CCString::createWithFormat("%.2g", slider->getValue());

    //因为成为了全局的了,所以能够访问的到

    atlas->setString(str->getCString());

}

运行结果:

最大值

最小范围:

最大范围:

运行结果在0.31.2之间

  1. CCControlSwitch

第一个参数,掩底背景图片,第二个参数为开的图片,第三个参数为关的图片,第四个参数为手指划到按钮,第五,六个参数分别为开和关显示的文字。

CCControlSwitch * sw = CCControlSwitch::create(

CCSprite::create("switch-mask.png"),

CCSprite::create("switch-on.png"),

CCSprite::create("switch-off.png"),

CCSprite::create("switch-thumb.png"),

CCLabelTTF::create("ON","Courier New",20),

CCLabelTTF::create("OFF","Courier New",20)

);

设置时间触发后的响应函数

sw->addTargetWithActionForControlEvents(this,cccontrol_selector(T12UI::switchCallback),

CCControlEventValueChanged)

 

如何在响应函数中获取选项

void T12UI::switchCallback(CCObject * sender,CCControlEvent event)

{

CCControlSwitch * sw = (CCControlSwitch *)sender;

If(sw->isOn())

{

    CCLog(“On”);

} else {

    CCLog(“off”);

}

}

5  CCControlSwitch案例说明

T12UI.h

#ifndef __T12UI_H__

#define __T12UI_H__

 

#include "cocos2d.h"

#include "TBack.h"

#include "cocos-ext.h"

USING_NS_CC;

USING_NS_CC_EXT;

 

class T12UI :public TBack

{

public:

    static CCScene * scene();

    CREATE_FUNC(T12UI);

    bool init();

 

    //开关的回调函数

    void switchCallBack(CCObject* sender, CCControlEvent event);

};

 

#endif

T12UI.cpp

#include "T12UI.h"

#include "AppMacros.h"

#include "SimpleAudioEngine.h"

using namespace CocosDenshion;

 

CCScene *T12UI::scene()

{

    CCScene * scene = CCScene::create();

    T12UI * layer = T12UI::create();

    scene->addChild(layer);

    return scene;

}

 

//UI控件来自cocos2dx的扩展库,完善了UI方面的元素,使cocos2dx更加丰富多彩。使用扩展库需要包含

bool T12UI::init()

{

    TBack::init();

 

    //通过SimpleAudioEngine的方式实现加载音乐

    SimpleAudioEngine::sharedEngine()->preloadBackgroundMusic("audio/start.wav");

    //创建开关、

    //第一个参数为:掩底背景CCSprite

    //第二个参数为开的CCSprite

    //第三个参数为关的CCSprite

    //第四个参数为手指滑到CCSprite

    //第五个参数onlabel

    //第六个参数为offlabel

    CCControlSwitch *sw = CCControlSwitch::create(

        CCSprite::create("switch-mask.png"),

        CCSprite::create("switch-on.png"),

        CCSprite::create("switch-off.png"),

        CCSprite::create("switch-thumb.png"),

        CCLabelTTF::create("ON", "Courier New", 20),

        CCLabelTTF::create("OFF", "Courier New", 20)

    );

    //设置开关的位置

    sw->setPosition(ccp(winSize.width / 2,winSize.height / 2));

    sw->addTargetWithActionForControlEvents(this,

        cccontrol_selector(T12UI::switchCallBack),

        CCControlEventValueChanged);

 

    //设置开关默认是关闭的

    sw->setOn(false);

    //将开关添加到Layer中去

    addChild(sw);

 

    return true;

}

 

//开关的回调函数

void T12UI::switchCallBack(CCObject* sender, CCControlEvent event)

{

    CCControlSwitch * sw = (CCControlSwitch *)sender;

    if (sw->isOn())

    {

        CCLog("click On");

        //通过playBackgroundMusic打开音乐

        SimpleAudioEngine::sharedEngine()->playBackgroundMusic("audio/start.wav");

    }

    else

    {

        //通过stopBackgroundMusic()关闭音乐

        SimpleAudioEngine::sharedEngine()->stopBackgroundMusic("audio/start.wav");

        CCLog("click off");

    }

}

运行结果:

  1. CCScale9Sprite九妹图

CCScale9Sprite对象,是一种CCSprite对象的变形,它的用法和CCSprite类似,不同点是:CCScale9Sprite对象有个特性就是缩放贴图时可以尽量不失帧。比如QQ聊天内边框

原理:

CCScale9Sprite的实现非常巧妙,是通过1CCSpriteBatchNode9CCSprite来实现的,原理很简单,通过将原纹理资源切割成9部分(PS:这也是叫九宫图的原因)。根据想要的尺寸,完成以下三个步骤:

  1. 保持4个角部分不变形

  2. 单向拉伸4条边(即在4个角两两之间的边,比如上边,只做横向拉伸)

  3. 双向拉伸中间部分(即九宫图的中间部分,横向,纵向同时拉伸,PS:拉伸比例不一定相同)

    CCSpriteBatchNode的资源为整个的纹理,9 CCSprite 对应于纹理的9

个部分(根据纹理不同,9 部分所占比例会有所不同),根据想要的尺寸,

9 部分拼装在一起!

  1. 需要包含的头文件

#include “cocos-ext.h”                    //包含cocos-ext.h头文件

using namespace cocos2d::extension;       //引用cocos2d::extension 命名空间

使用说明:

CCScale9Sprite::create(const char* file,CCRect rect, CCRect, capInsets);

第一个参数为文件,第二个参数使用文件的大小,第三个参数如下,若未设置,或设置图分别如下:

我们知道CCSprite的拉伸方式是通过setScale();来实现的,而对于CCScale9Sprite则不同。它是通过setContentSize(constCCSize & size);来实现图片的拉伸。

测试代码:

CCScale9Sprite * spr = CCScale9Sprite::create("scale9.png",CCRectMake(0, 0, 116, 102), CCRectMake(40, 30, 30, 40));

spr->setPosition(ccp(winSize.width/2,winSize.height/2));

addChild(spr);

//spr->setScale(4.0f);

spr->setPreferredSize(CCSizeMake(400,200));

关于CCScale9Sprite::create()

T12UI.h

#ifndef __T12UI_H__

#define __T12UI_H__

 

#include "cocos2d.h"

#include "TBack.h"

#include "cocos-ext.h"

USING_NS_CC;

USING_NS_CC_EXT;

 

class T12UI :public TBack

{

public:

    static CCScene * scene();

    CREATE_FUNC(T12UI);

    bool init();

};

 

#endif

T12UI.cpp

#include "T12UI.h"

#include "AppMacros.h"

#include "SimpleAudioEngine.h"

using namespace CocosDenshion;

 

CCScene *T12UI::scene()

{

    CCScene * scene = CCScene::create();

    T12UI * layer = T12UI::create();

    scene->addChild(layer);

    return scene;

}

 

//UI控件来自cocos2dx的扩展库,完善了UI方面的元素,使cocos2dx更加丰富多彩。使用扩展库需要包含

bool T12UI::init()

{

    TBack::init();

 

    CCScale9Sprite * s9spr = CCScale9Sprite::create(

        "scale9.png",

        CCRectMake(0, 0, 116, 102),

        CCRectMake(30, 40, 56, 20));

    s9spr->setPosition(ccp(winSize.width / 2, winSize.height / 2));

    addChild(s9spr);

    s9spr->setPreferredSize(CCSize(500,100));

    return true;

}

运行结果:

  1. CControlButton

CCScale9Sprite * bgbutton = CCScale9Sprite::create("button.png");

//背景色图片

CCScale9Sprite * bgbuttonlighted =

CCScale9Sprite::create("buttonHighlighted.png");

//背景色高亮图片

CCLabelTTF * titlebutton = CCLabelTTF::create("Touch Me", "Courier

New", 30);

//按钮的文本

CCControlButton * button =

CCControlButton::create(titlebutton,bgbutton);

//创建按钮

button->setColor(ccc3(159, 168, 176));

//调色

button->setBackgroundSpriteForState(bgbuttonlighted,

CCControlStateHighlighted);

//按下后背景高亮

button->setTitleColorForState(ccWHITE,

CCControlStateHighlighted);

//按下后文本高亮

button->addTargetWithActionForControlEvents(this,cccontrol_selector(T12UI::buttonTouchDown));

button->addTargetWithActionForControlEvents(this,cccontrol_selector(T12UI::buttonTouchDown),CCControlEventTouchDown);

button->addTargetWithActionForControlEvents(this,cccontrol_selector(T12UI::buttonTouchDragInside),CCControlEventTouchDragInside);

响应的事件类型如下:

/** Kinds of possible events for the control objects. */

enum

{

    CCControlEventTouchDown           = 1 << 0,    // A touch-down event in the control.

    CCControlEventTouchDragInside     = 1 << 1,    // An event where a finger is dragged inside the bounds of the control.

    CCControlEventTouchDragOutside    = 1 << 2,    // An event where a finger is dragged just outside the bounds of the control.

    CCControlEventTouchDragEnter      = 1 << 3,    // An event where a finger is dragged into the bounds of the control.

    CCControlEventTouchDragExit       = 1 << 4,    // An event where a finger is dragged from within a control to outside its bounds.

    CCControlEventTouchUpInside       = 1 << 5,    // A touch-up event in the control where the finger is inside the bounds of the control.

    CCControlEventTouchUpOutside      = 1 << 6,    // A touch-up event in the control where the finger is outside the bounds of the control.

    CCControlEventTouchCancel         = 1 << 7,    // A system event canceling the current touches for the control.

    CCControlEventValueChanged        = 1 << 8      // A touch dragging or otherwise manipulating a control, causing it to emit a series of different values.

};

typedef unsigned int CCControlEvent;

 

T12UI.h

#ifndef __T12UI_H__

#define __T12UI_H__

 

#include "cocos2d.h"

#include "TBack.h"

#include "cocos-ext.h"

USING_NS_CC;

USING_NS_CC_EXT;

 

class T12UI :public TBack

{

public:

    static CCScene * scene();

    CREATE_FUNC(T12UI);

    bool init();

 

    void touchDownCallBack(CCObject* sender, CCControlEvent event);

    void touchDragInsideCallBack(CCObject* sender, CCControlEvent event);

};

 

#endif

T12UI.cpp

#include "T12UI.h"

#include "AppMacros.h"

#include "SimpleAudioEngine.h"

using namespace CocosDenshion;

 

CCScene *T12UI::scene()

{

    CCScene * scene = CCScene::create();

    T12UI * layer = T12UI::create();

    scene->addChild(layer);

    return scene;

}

 

bool T12UI::init()

{

    TBack::init();

    CCScale9Sprite *bgButton = CCScale9Sprite::create("button.png");

    CCScale9Sprite *bgButtonLighted = CCScale9Sprite::create("buttonHighlighted.png");

    CCLabelTTF * text = CCLabelTTF::create("Touch Me", "Couier New", 50);

 

    CCControlButton * button = CCControlButton::create(text, bgButton);

    //为按钮添加位置

    button->setPosition(ccp(winSize.width / 2, winSize.height / 2));

    button->setBackgroundSpriteForState(bgButtonLighted, CCControlStateHighlighted);

    button->setTitleColorForState(ccRED, CCControlStateHighlighted);

    addChild(button);

 

    //为按钮添加监听事件,添加的是按钮被点击的事件

    button->addTargetWithActionForControlEvents(this,

        cccontrol_selector(T12UI::touchDownCallBack),

        CCControlEventTouchDown);

    //为按钮添加监听事件,添加的是按钮Drag的事件

    button->addTargetWithActionForControlEvents(this,

        cccontrol_selector(T12UI::touchDragInsideCallBack),

        CCControlEventTouchDragInside);

 

    return true;

}

 

void T12UI::touchDownCallBack(CCObject* sender, CCControlEvent event)

{

    CCLog("touchDownCallBack");

}

 

void T12UI::touchDragInsideCallBack(CCObject* sender, CCControlEvent event)

{

    CCLog("touchDragInsideCallBack");

}

运行结果:

 

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