Convert wxString to enum. Topic is solved

[scriptdaemon]

I have some enum values:

Code: Select all

enum BGStyle
{
    Stretched,
    Centered,
    Tiled
};

I would like to convert a wxString such as "Stretched" to the corresponding enum value. Is there an easy way to do this without using if/else statements?

[vdell]

Is there an easy way to do this without using if/else statements?

Nope. You could code something similar to EnumBinder if you don't want to use the if/else-solution.

HTH

[Auria]

Java does this, but I don't know any similar facility in C++. It should be quite straightforward to implement it in a generic way if that's what you want though

[ninja9578]

C++ doesn't have a way to do that but it's fairly easy

Code: Select all

switch(yourstring[0]){
   case 'S':
      assert(yourstring == "Stretched");
      return Stretched;
   case 'C':
      assert(yourstring == "Centred");
      return Centred;
   case 'T':
      assert(yourstring == "Tiled");
      return Tiled;
};

Just make sure that wxStrings guarantees that you have at least one character ('\0') in it. std::string does, but I'm not sure about wxString. Seems like it would though.

[scriptdaemon]

C++ doesn't have a way to do that but it's fairly easy

Code: Select all

switch(yourstring[0]){
   case 'S':
      assert(yourstring == "Stretched");
      return Stretched;
   case 'C':
      assert(yourstring == "Centred");
      return Centred;
   case 'T':
      assert(yourstring == "Tiled");
      return Tiled;
};

Just make sure that wxStrings guarantees that you have at least one character ('\0') in it. std::string does, but I'm not sure about wxString. Seems like it would though.

This would be the easiest, but the EnumBinder might have some use later on.