add CCTextFieldDelegate.

cocos2dx/include/CCTextFieldTTF.h

@@ -31,11 +31,56 @@ THE SOFTWARE.
 
 NS_CC_BEGIN;
 
-/**
-@brief	A simple text input field with system TTF font.
-*/
+class CCTextFieldTTF;
 
-class CC_DLL CCTextFieldTTF : public CCLabelTTF, public CCIMEDelegate//, public CCTargetedTouchDelegate
+class CC_DLL CCTextFieldDelegate
+{
+public:
+    /**
+    @brief	If the sender doesn't want to attach with IME, return true;
+    */
+    bool onTextFieldAttachWithIME(CCTextFieldTTF * sender)
+    { 
+        return false;
+    }
+
+    /**
+    @brief	If the sender doesn't want to detach with IME, return true;
+    */
+    bool onTextFieldDetachWithIME(CCTextFieldTTF * sender)
+    {
+        return false;
+    }
+
+    /**
+    @brief	If the sender doesn't want to insert the text, return true;
+    */
+    bool onTextFieldInsertText(CCTextFieldTTF * sender, const char * text, int nLen)
+    {
+        return false;
+    }
+
+    /**
+    @brief	If the sender doesn't want to delete the delText, return true;
+    */
+    bool onTextFieldDeleteBackward(CCTextFieldTTF * sender, const char * delText, int nLen)
+    {
+        return false;
+    }
+
+    /**
+    @brief	If doesn't want draw sender as default, return true.
+    */
+    bool onDraw(CCTextFieldTTF * sender)
+    {
+        return false;
+    }
+};
+
+/**
+@brief	A simple text input field with TTF font.
+*/
+class CC_DLL CCTextFieldTTF : public CCLabelTTF, public CCIMEDelegate
 {
 public:
     CCTextFieldTTF();
@@ -66,6 +111,10 @@ public:
     // properties
     //////////////////////////////////////////////////////////////////////////
     
+    CC_SYNTHESIZE(CCTextFieldDelegate *, m_pDelegate, Delegate);
+    CC_SYNTHESIZE_READONLY(int, m_nCharCount, CharCount);
+    CC_SYNTHESIZE(ccColor3B, m_ColorSpaceHolder, ColorSpaceHolder);
+
     // input text property
 public:
     virtual void setString(const char *text);
@@ -80,9 +129,10 @@ public:
     virtual const char * getPlaceHolder(void);
 protected:
     std::string * m_pPlaceHolder;
-    bool          m_bLock;          // when insertText or deleteBackward called, m_bLock is true
 protected:
 
+    virtual void draw();
+
     //////////////////////////////////////////////////////////////////////////
     // CCIMEDelegate interface
     //////////////////////////////////////////////////////////////////////////

cocos2dx/text_input_node/CCTextFieldTTF.cpp

@@ -29,15 +29,34 @@ THE SOFTWARE.
 
 NS_CC_BEGIN;
 
+static int _calcCharCount(const char * pszText)
+{
+    int n = 0;
+    char ch = 0;
+    while (ch = *pszText)
+    {
+        CC_BREAK_IF(! ch);
+        
+        if (0x80 != (0xC0 & ch))
+        {
+            ++n;
+        }
+        ++pszText;
+    }
+    return n;
+}
+
 //////////////////////////////////////////////////////////////////////////
 // constructor and destructor
 //////////////////////////////////////////////////////////////////////////
 
 CCTextFieldTTF::CCTextFieldTTF()
-: m_pInputText(new std::string)
+: m_pDelegate(0)
+, m_nCharCount(0)
+, m_pInputText(new std::string)
 , m_pPlaceHolder(new std::string)   // prevent CCLabelTTF initWithString assertion
-, m_bLock(false)
 {
+    m_ColorSpaceHolder.r = m_ColorSpaceHolder.g = m_ColorSpaceHolder.b = 127;
 }
 
 CCTextFieldTTF::~CCTextFieldTTF()
@@ -141,12 +160,12 @@ bool CCTextFieldTTF::detachWithIME()
 
 bool CCTextFieldTTF::canAttachWithIME()
 {
-    return true;
+    return (m_pDelegate) ? (! m_pDelegate->onTextFieldAttachWithIME(this)) : true;
 }
 
 bool CCTextFieldTTF::canDetachWithIME()
 {
-    return true;
+    return (m_pDelegate) ? (! m_pDelegate->onTextFieldAttachWithIME(this)) : true;
 }
 
 void CCTextFieldTTF::insertText(const char * text, int len)
@@ -171,11 +190,16 @@ void CCTextFieldTTF::insertText(const char * text, int len)
         return;
     }
 
-    m_bLock = true;
+    if (m_pDelegate && m_pDelegate->onTextFieldInsertText(this, sInsert.c_str(), len))
+    {
+        // delegate doesn't want insert text
+        return;
+    }
+
+    m_nCharCount += _calcCharCount(sInsert.c_str());
     std::string sText(*m_pInputText);
     sText.append(sInsert);
     setString(sText.c_str());
-    m_bLock = false;
 }
 
 void CCTextFieldTTF::deleteBackward()
@@ -187,8 +211,6 @@ void CCTextFieldTTF::deleteBackward()
         return;
     }
 
-    m_bLock = true;
-
     // get the delete byte number
     int nDeleteLen = 1;    // default, erase 1 byte
 
@@ -196,6 +218,13 @@ void CCTextFieldTTF::deleteBackward()
     {
         ++nDeleteLen;
     }
+
+    if (m_pDelegate && m_pDelegate->onTextFieldDeleteBackward(this, m_pInputText->c_str() + nStrLen - nDeleteLen, nDeleteLen))
+    {
+        // delegate don't wan't delete backward
+        return;
+    }
+
     // if delete all text, show space holder string
     if (nStrLen <= nDeleteLen)
     {
@@ -208,7 +237,25 @@ void CCTextFieldTTF::deleteBackward()
     // set new input text
     std::string sText(m_pInputText->c_str(), nStrLen - nDeleteLen);
     setString(sText.c_str());
-    m_bLock = false;
+}
+
+void CCTextFieldTTF::draw()
+{
+    if (m_pDelegate && m_pDelegate->onDraw(this))
+    {
+        return;
+    }
+    if (m_pInputText->length())
+    {
+        CCLabelTTF::draw();
+        return;
+    }
+
+    // draw placeholder
+    ccColor3B color = getColor();
+    setColor(m_ColorSpaceHolder);
+    CCLabelTTF::draw();
+    setColor(color);
 }
 
 //////////////////////////////////////////////////////////////////////////
@@ -233,6 +280,7 @@ void CCTextFieldTTF::setString(const char *text)
     {
         CCLabelTTF::setString(m_pInputText->c_str());
     }
+    m_nCharCount = _calcCharCount(m_pInputText->c_str());
 }
 
 const char* CCTextFieldTTF::getString(void)