add function for uiText and uiTextField

cocos/ui/UIText.cpp

@@ -283,6 +283,11 @@ void Text::adaptRenderers()
 }
 
 Size Text::getVirtualRendererSize() const
+{
+    return _labelRenderer->getContentSize();
+}
+
+Size Text::getAutoRenderSize()
 {
     Size virtualSize = _labelRenderer->getContentSize();
     if (!_ignoreSize)

cocos/ui/UIText.h

@@ -144,6 +144,8 @@ public:
     //override "getVirtualRenderer" method of widget.
     virtual Node* getVirtualRenderer() override;
 
+    virtual Size getAutoRenderSize();
+
     /**
      * Returns the "class name" of widget.
      */

cocos/ui/UITextField.cpp

@@ -768,6 +768,19 @@ void TextField::textfieldRendererScaleChangedWithSize()
     _textFieldRenderer->setPosition(_contentSize.width / 2.0f, _contentSize.height / 2.0f);
 }
 
+Size TextField::getAutoRenderSize()
+{
+    Size virtualSize = _textFieldRenderer->getContentSize();
+    if (!_ignoreSize)
+    {
+        _textFieldRenderer->setDimensions(0, 0);
+        virtualSize = _textFieldRenderer->getContentSize();
+        _textFieldRenderer->setDimensions(_contentSize.width, _contentSize.height);
+    }
+
+    return virtualSize;
+}
+
 Size TextField::getVirtualRendererSize() const
 {
     return _textFieldRenderer->getContentSize();

cocos/ui/UITextField.h

@@ -187,6 +187,7 @@ public:
      */
     virtual std::string getDescription() const override;
 
+    virtual Size getAutoRenderSize();
     virtual Size getVirtualRendererSize() const override;
     virtual Node* getVirtualRenderer() override;
     void attachWithIME();