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[cocos2d-x] 分享一个EditBox 控件代码。


实现：直接通过CCIMEDelegate实现字符的录入，删除，支持中英文混合输入，支持多个 EditBox 焦点切换，支持自动调整输入框位置等等一些列，应该满足一般游戏的需求。
主要平台：WIN32,IOS, android未测试。
优点：可以很容易的将 EditBox 控件在 cocos2dx 中融合。
缺点：当然没有原生的功能强。


#ifndef EDITBOX_H_INCLUDED
#define EDITBOX_H_INCLUDED

namespace azl
{

class EditBox;
class EditBoxListener
{
public:
    virtual void onEditBoxChange(yy::EditBox* editBox) = 0;
    virtual void onEditBoxReturn(yy::EditBox* editBox) = 0;
};

class EditBox : public cocos2d::CCNode, public cocos2d::CCIMEDelegate, public cocos2d::CCTouchDelegate
{
public:
    enum TYPE
    {
        TYPE_NORMAL = 1,
        TYPE_PASSWORD = 2,
    };

public:
    EditBox();
    ~EditBox();

public:
    virtual bool attachWithIME();
    virtual bool detachWithIME();

public:
    virtual bool canAttachWithIME() { return true; }
    virtual void didAttachWithIME();
    virtual bool canDetachWithIME() { return true; }
    virtual void didDetachWithIME();

public:
    virtual void insertText(const char * text, int len);
    virtual void deleteBackward();
    virtual const char * getContentText() 
    {
        return getString().c_str();
    }

public:
    virtual void keyboardWillShow(cocos2d::CCIMEKeyboardNotificationInfo& info);
    virtual void keyboardDidShow(cocos2d::CCIMEKeyboardNotificationInfo& info);
    virtual void keyboardWillHide(cocos2d::CCIMEKeyboardNotificationInfo& info);
    virtual void keyboardDidHide(cocos2d::CCIMEKeyboardNotificationInfo& info);

public:
    virtual bool ccTouchBegan(cocos2d::CCTouch *pTouch, cocos2d::CCEvent *pEvent);
    virtual void ccTouchMoved(cocos2d::CCTouch *pTouch, cocos2d::CCEvent *pEvent);
    virtual void ccTouchEnded(cocos2d::CCTouch *pTouch, cocos2d::CCEvent *pEvent);
    virtual void ccTouchCancelled(cocos2d::CCTouch *pTouch, cocos2d::CCEvent *pEvent);

public:
    virtual void setContentSize(const cocos2d::CCSize& contentSize)
    {
        cocos2d::CCNode::setContentSize(contentSize);
        updateString();
    }

public:
    void updateCursor(float dt);

    void onEnter();
    void onExit();
    void visit();

public:
    void setBackground(cocos2d::CCNode* background);
    cocos2d::CCNode* getBackground()
    {
        return background_;
    }

    void setLabel(cocos2d::CCLabelTTF* label);
    cocos2d::CCLabelTTF* getLabel()
    {
        return contentLabel_;
    }

    void setPlaceholderLabel(cocos2d::CCLabelTTF* label);
    cocos2d::CCLabelTTF* getPlaceholderLabel()
    {
        return placeholderLabel_;
    }

    void setString(const std::string& text);
    const std::string& getString()
    {
        return contentText_;
    }

    void setType(TYPE type);
    TYPE getType()
    {
        return type_;
    }

    void setMaxChar(int maxChar);
    int getMaxChar()
    {
        return maxChar_;
    }

    void setEnabled(bool enable)
    {
        enable_ = enable;
    }
    bool isEnabled()
    {
        return enable_;
    }

    void setIsNumber(bool number)
    {
        isNumber_ = number;
    }
    bool isNumber()
    {
        return isNumber_;
    }

    void setListener(EditBoxListener* listener)
    {
        listener_ = listener;
    }
    EditBoxListener* getListener()
    {
        return listener_;
    }

public:
    static EditBox* create(cocos2d::CCSize size, cocos2d::CCLabelTTF* label, 
        cocos2d::CCLabelTTF* placeholderLabel = NULL, 
        cocos2d::CCNode* background = NULL, 
        TYPE type = TYPE_NORMAL);

private:
    void updateString();

private:
    cocos2d::CCNode* background_;
    cocos2d::CCLabelTTF* contentLabel_;
    cocos2d::CCLabelTTF* placeholderLabel_;
    std::string contentText_;
    TYPE type_;
    int cursorState_;
    int maxChar_;
    bool enable_;
    float adjustVert_;
    bool isNumber_;

    EditBoxListener* listener_;
    std::vector<unsigned char> lengthStack_;
};

}

#endif

// CPP
#include "cocos2d.h"
#include "EditBox.h"
#include "AppDelegate.h"

using namespace cocos2d;

namespace
{

static const char _charMap[] = 
{
    /* 00 */    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 
    /* 10 */    0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 
    /* 20 */    0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 
    /* 30 */    0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 
    /* 40 */    0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 
    /* 50 */    0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, 
    /* 60 */    0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 
    /* 70 */    0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 
    /* 80 */      -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1, 
    /* 90 */      -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1, 
    /* a0 */      -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1, 
    /* b0 */      -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1,   -1, 
    /* c0 */      -2,   -2,   -2,   -2,   -2,   -2,   -2,   -2,   -2,   -2,   -2,   -2,   -2,   -2,   -2,   -2, 
    /* d0 */      -2,   -2,   -2,   -2,   -2,   -2,   -2,   -2,   -2,   -2,   -2,   -2,   -2,   -2,   -2,   -2, 
    /* e0 */      -3,   -3,   -3,   -3,   -3,   -3,   -3,   -3,   -3,   -3,   -3,   -3,   -3,   -3,   -3,   -3, 
    /* f0 */      -4,   -4,   -4,   -4,   -4,   -4,   -4,   -4,   -5,   -5,   -5,   -5,   -6,   -6,   -1,   -1, 
};

}

namespace azl
{

static EditBox* g_currentEditBox_ = NULL;

EditBox::EditBox() 
    : background_(NULL)
    , contentLabel_(NULL)
    , placeholderLabel_(NULL)
    , type_(TYPE_NORMAL)
    , cursorState_(-1)
    , maxChar_(64)
    , enable_(true)
    , adjustVert_(0)
    , isNumber_(false)
    , listener_(NULL)
{
    
}

EditBox::~EditBox()
{

}

bool EditBox::attachWithIME()
{
    bool bRet = CCIMEDelegate::attachWithIME();
    if (bRet)
    {
        // open keyboard
        CCEGLView * pGlView = CCDirector::sharedDirector()->getOpenGLView();
        if (pGlView)
        {
#if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
            if (!isNumber())
            {
                pGlView->setIMEKeyboardDefault();
                
            }
            else
            {
                pGlView->setIMEKeyboardNumber();
                
            }
#endif
            
            pGlView->setIMEKeyboardState(true);
        }
    }
    return bRet;
}

bool EditBox::detachWithIME()
{
    bool bRet = CCIMEDelegate::detachWithIME();
    if (bRet)
    {
        // close keyboard
        CCEGLView * pGlView = CCDirector::sharedDirector()->getOpenGLView();
        if (pGlView)
        {
            pGlView->setIMEKeyboardState(false);
        }
    }
    return bRet;
}

void EditBox::didAttachWithIME()
{
    cursorState_ = 0;
    g_currentEditBox_ = this;
}

void EditBox::didDetachWithIME()
{
    cursorState_ = -1;
#if (CC_TARGET_PLATFORM == CC_PLATFORM_WIN32)
    g_currentEditBox_ = NULL;
#endif
}

void EditBox::insertText( const char * text, int len )
{
    if (!enable_ || !isVisible())
    {
        return;
    }

    bool enter = false;
    bool update = false;

    for (int i = 0; i < len;)
    {
        int l = _charMap[(unsigned char)text[i]];

        if ((int)contentText_.size() + (l < 0 ? -l : 1) > maxChar_)
        {
            for (; i < len; ++i)
            {
                if (text[i] == '\n')
                {
                    enter = true;
                }
            }

            break;
        }

        if (l < 0)
        {
            if (!isNumber_)
            {
                update = true;
                lengthStack_.push_back(-l);
                for (int j = 0; j < -l; ++j)
                {
                    contentText_.push_back(text[i + j]);
                }
            }

            i += -l;
        }
        else
        {
            if (text[i] == '\n')
            {
                enter = true;
                break;
            }

            if (isNumber_)
            {
                if (text[i] >= '0' && text[i] <= '9')
                {
                    update = true;
                    lengthStack_.push_back(1);
                    contentText_.push_back(text[i]);
                }
            }
            else
            {
                update = true;
                lengthStack_.push_back(1);
                contentText_.push_back(text[i]);
            }

            ++i;
        }
    }

    if (update)
    {
        updateString();
        if (listener_)
        {
            listener_->onEditBoxChange(this);
        }
    }

    if (enter)
    {
        detachWithIME();
        if (listener_)
        {
            listener_->onEditBoxReturn(this);
        }
    }
}

void EditBox::deleteBackward()
{
    if (!contentText_.empty() && !lengthStack_.empty())
    {
        contentText_ = contentText_.substr(0, contentText_.size() - lengthStack_.back());
        lengthStack_.pop_back();

        updateString();
        if (listener_)
        {
            listener_->onEditBoxChange(this);
        }
    }
}

void EditBox::keyboardWillShow( CCIMEKeyboardNotificationInfo& info )
{
    if (g_currentEditBox_ != this)
    {
        return;
    }
    
    CCNode* node = this, *root = this;
    while ((node = node->getParent()))
    {
        root = node;
    }
    
    CCPoint position = root->getPosition();
    if (adjustVert_ != 0)
    {
        root->setPosition(CCPoint(position.x, position.y - adjustVert_));
    }
    adjustVert_ = 0;
    
    CCPoint point = convertToWorldSpace(CCPointZero);
    
    float mY = info.end.getMaxY() + AppDelegate::getKeyboardOffsetY();

    if (mY > point.y)
    {
        adjustVert_ = mY - point.y + 4 + CCDirector::sharedDirector()->getVisibleOrigin().y;
        position = root->getPosition();
        root->setPosition(CCPoint(position.x, position.y + adjustVert_));
    }
}

void EditBox::keyboardDidShow( CCIMEKeyboardNotificationInfo& info )
{

}

void EditBox::keyboardWillHide( CCIMEKeyboardNotificationInfo& info )
{
    if (g_currentEditBox_ != this)
    {
        return;
    }
    
    if (adjustVert_ != 0)
    {
        CCNode* node = this, *root = this;
        
        while ((node = node->getParent()))
        {
            root = node;
        }
        
        CCPoint position = root->getPosition();
        root->setPosition(CCPoint(position.x, position.y - adjustVert_));
        adjustVert_ = 0;
    }

}

void EditBox::keyboardDidHide( CCIMEKeyboardNotificationInfo& info )
{
#if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
    g_currentEditBox_ = NULL;
#endif
}

bool EditBox::ccTouchBegan( CCTouch *pTouch, CCEvent *pEvent )
{
    if (isVisible() && enable_)
    {
        CCRect rect;
        rect.origin = CCPointZero;
        rect.size = getContentSize();
        CCPoint position = convertTouchToNodeSpace(pTouch);
        
        if (rect.containsPoint(position))
        {
            attachWithIME();
            return true;
        }
        else
        {
            detachWithIME();
        }
    }

    return false;
}

void EditBox::ccTouchMoved( CCTouch *pTouch, CCEvent *pEvent )
{
    CC_UNUSED_PARAM(pTouch); CC_UNUSED_PARAM(pEvent);
}

void EditBox::ccTouchEnded( CCTouch *pTouch, CCEvent *pEvent )
{
    CC_UNUSED_PARAM(pTouch); CC_UNUSED_PARAM(pEvent);
}

void EditBox::ccTouchCancelled( CCTouch *pTouch, CCEvent *pEvent )
{
    CC_UNUSED_PARAM(pTouch); CC_UNUSED_PARAM(pEvent);
}

void EditBox::updateCursor( float dt )
{
    if (cursorState_ != -1)
    {
        cursorState_ = (++cursorState_ % 2);
    }
}

void EditBox::onEnter()
{
    schedule(SEL_SCHEDULE(&EditBox::updateCursor), 0.5);
    CCNode::onEnter();
    CCDirector::sharedDirector()->getTouchDispatcher()->addTargetedDelegate(this, kCCMenuHandlerPriority, true);
}

void EditBox::onExit()
{
    CCDirector::sharedDirector()->getTouchDispatcher()->removeDelegate(this);
    unschedule(SEL_SCHEDULE(&EditBox::updateCursor));
    CCNode::onExit();
}

void EditBox::visit()
{
    if (!isVisible())
    {
        return;
    }

    glEnable(GL_SCISSOR_TEST);

    CCPoint position = convertToWorldSpace(CCPointZero);
    CCSize size = getContentSize();

    CCEGLView::sharedOpenGLView()->setScissorInPoints(position.x, position.y, size.width, size.height);

    CCNode::visit();

    if (cursorState_ == 1 && g_currentEditBox_ == this)
    {
        CCSize size = getContentSize();
        CCPoint position1;

        if (contentLabel_ && contentLabel_->isVisible())
        {
            CCRect rect = contentLabel_->boundingBox();

            if (size.width <= rect.size.width - 4)
            {
                position1 = CCPoint(size.width - 4, 0);
            }
            else
            {
                position1 = CCPoint(rect.size.width, 0);
            }
        }
        else
        {
            position1 = CCPointZero;
        }

        position1.x = (position1.x < 2 ? 2 : position1.x);
        position1.y = -adjustVert_;

        cocos2d::ccDrawColor4B(0, 0, 255, 128);
        for (int i = 2; i < 6; ++i)
        {
            cocos2d::ccDrawLine(cocos2d::CCPoint(position.x + position1.x + i , position.y + position1.y),
                cocos2d::CCPoint(position.x + position1.x + i , position.y + position1.y + size.height));
        }
    }

    glDisable(GL_SCISSOR_TEST);
}

void EditBox::setBackground( cocos2d::CCNode* background )
{
    if (background_)
    {
        removeChild(background_, true);
    }
    addChild(background);

    background_ = background;
}

void EditBox::setLabel( cocos2d::CCLabelTTF* label )
{
    contentLabel_ = label;
    contentLabel_->setAnchorPoint(CCPointZero);

    updateString();
}

void EditBox::setPlaceholderLabel( cocos2d::CCLabelTTF* label )
{
    placeholderLabel_ = label;
    placeholderLabel_->setAnchorPoint(CCPointZero);

    updateString();
}

void EditBox::setString( const std::string& text )
{
    lengthStack_.clear();
    contentText_ = "";
    insertText(text.c_str(), (int)text.size());
//     contentText_ = text;
// 
//     if (contentLabel_)
//     {
//         contentLabel_->setString(text.c_str());
//     }
// 
//     updateString();
}

void EditBox::setType( TYPE type )
{
    type_ = type;

    updateString();
}

void EditBox::setMaxChar( int maxChar )
{
    maxChar_ = maxChar;
}

void EditBox::updateString()
{
    if (contentText_.empty())
    {
        if (contentLabel_)
        {
            contentLabel_->setString("");
        }

        if (placeholderLabel_)
        {
            placeholderLabel_->setVisible(true);
            if (contentLabel_)
            {
                contentLabel_->setVisible(false);
            }

            CCRect rect = placeholderLabel_->boundingBox();
            CCSize size = getContentSize();

            placeholderLabel_->setPosition(CCPoint(0, ( size.height - rect.size.height ) / 2.0f));
        }
    }
    else
    {
        if (contentLabel_)
        {
            contentLabel_->setVisible(true);
            if (placeholderLabel_)
            {
                placeholderLabel_->setVisible(false);
            }

            if (type_ == TYPE_NORMAL)
            {
                contentLabel_->setString(contentText_.c_str());
            }
            else if (type_ == TYPE_PASSWORD)
            {
                contentLabel_->setString(std::string().append(lengthStack_.size(), '*').c_str());
            }

            CCRect rect = contentLabel_->boundingBox();
            CCSize size = getContentSize();

            float y = ( size.height  - rect.size.height) / 2.0f;

            if (size.width - 4 <= rect.size.width)
            {
                contentLabel_->setPosition(CCPoint(size.width - rect.size.width - 4 , y));
            }
            else
            {
                contentLabel_->setPosition(CCPoint(0, y));
            }
        }
    }
}

EditBox* EditBox::create( cocos2d::CCSize size, 
    cocos2d::CCLabelTTF* label, 
    cocos2d::CCLabelTTF* placeholderLabel /*= NULL*/, 
    cocos2d::CCNode* background /*= NULL*/, 
    TYPE type /*=     TYPE_NORMAL*/ )
{
    EditBox* box = new EditBox;
    box->autorelease();

    if (background)
    {
        background->setAnchorPoint(CCPointZero);
        background->setPosition(0, 0);
        box->addChild(background, 0);
        box->background_ = background;
    }

    if (label)
    {
        label->setAnchorPoint(CCPointZero);
        box->addChild(label, 1);
        box->contentLabel_ = label;
    }

    if (placeholderLabel)
    {
        placeholderLabel->setAnchorPoint(CCPointZero);
        box->addChild(placeholderLabel, 1);
        box->placeholderLabel_ = placeholderLabel;
    }

//     {
//         cocos2d::CCMenu* menu = cocos2d::CCMenu::create();
//         cocos2d::CCMenuItemLabel* label = cocos2d::CCMenuItemLabel::create(
//             cocos2d::CCLabelTTF::create("X", "Arial", 20));
//         menu->addChild(label);
//         menu->setPosition(cocos2d::CCPoint(size.width, size.height / 2));
//         box->addChild(menu);
//     }

    box->setContentSize(size);
    box->type_ = type;
    box->updateString();

    return box;
}

}

 

posted on 2013-07-01 19:51 l1989 阅读(5125) 评论(2)  编辑 收藏 引用 所属分类: C++ 、游戏

评论

# re: [cocos2d-x] 分享一个EditBox 控件代码。  回复  更多评论   

太好了！
2013-09-04 20:15 | 速度

# re: [cocos2d-x] 分享一个EditBox 控件代码。  回复  更多评论   

求教下，你这个类怎么用呢？
2014-03-14 10:37 | 吴

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