SFML Game Development By Example

The text field element

In order to implement a text field element successfully, we need to define how it responds to input correctly. Firstly, let's set up a new element type by creating the text field element class and implementing the constructor, as shown here:

GUI_Textfield::GUI_Textfield(const std::string& l_name,
  GUI_Interface* l_owner)
  : GUI_Element(l_name, GUI_ElementType::Textfield , l_owner){}

This element can also have a default text value when loaded, so let's express that by providing a custom version of the ReadIn method:

void GUI_Textfield::ReadIn(std::stringstream& l_stream){
  std::string content;
  Utils::ReadQuotedString(l_stream, content);
  m_visual.m_text.setString(content);
}

As you probably know, text fields do not change state if ...