Custom thumbnail for class

Development Programming & Scripting C++
, , , ,
5

for beginners like me, this solution should work : (I am not sure if this way is ok to edit my game module )

my project name MG3, the file MG3.cpp by default is:

#include "MG3.h"
IMPLEMENT_PRIMARY_GAME_MODULE(FDefaultGameModuleImpl, MG3, "MG3");

so I have edited it to the following:

#include "MG3.h"

#ifndef WITH_EDITOR
IMPLEMENT_PRIMARY_GAME_MODULE(FDefaultGameModuleImpl, MG3, "MG3");
#else

#include "SlateStyle.h"
#include "SlateStyleRegistry.h"

class FMyDefaultGameModuleImpl
	: public FDefaultGameModuleImpl {
public:
	static TSharedPtr< class FSlateStyleSet > StyleSet;
	virtual void StartupModule() override {
		StyleSet = MakeShareable(new FSlateStyleSet("PlyrOPStyleSet"));
		StyleSet->SetContentRoot(FPaths::EngineContentDir() / TEXT("Editor/Slate"));
		StyleSet->SetCoreContentRoot(FPaths::EngineContentDir() / TEXT("Slate"));

		auto brush = new FSlateImageBrush(
			StyleSet->RootToContentDir(TEXT("Icons/AssetIcons/PaperCharacter_64x"), TEXT(".png"))
			, FVector2D(64.0f, 64.0f)
			);

		StyleSet->Set("ClassThumbnail.MPlayerOP", brush);
		FSlateStyleRegistry::RegisterSlateStyle(*StyleSet.Get());
	}

	virtual void ShutdownModule() override {
		FSlateStyleRegistry::UnRegisterSlateStyle(*StyleSet.Get());
		ensure(StyleSet.IsUnique());
		StyleSet.Reset();
	}

};

TSharedPtr< FSlateStyleSet > FMyDefaultGameModuleImpl::StyleSet = nullptr;

IMPLEMENT_PRIMARY_GAME_MODULE(FMyDefaultGameModuleImpl, MG3, "MG3");
#endif

MPlayerOP is the class name that I want to change its thumbnail.

thanks for everyone in ue answers ^^ . special thanks to MatzeOGH.