quote:

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Originally posted by feline
Extract Interface, maybe I am missing something here. This almost sounds to "simple". That is not really the right word, but I am not sure how to describe my thought.

Is this something you often do? I think I have only done this a handful of times, in all my years. It sounds a lot like just copy / paste the class declaration, which is easy to do with VA Outline, where you can pick out just the bits you want, and then just rename the copy and add "= 0" to the end of each of the declarations.

I see the appeal, I am just not sure how useful this would really be.

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class testExtractInterface
{
	int getHeight()	{ return 1; }
	int getWidth()	{ return 1; }
	void setName(const char *pName) { ; }
};

class newInterface
{
	virtual int getHeight() = 0;
	virtual int getWidth() = 0;
};

class testExtractInterface : public newInterface
{
	int getHeight()	{ return 1; }
	int getWidth()	{ return 1; }
	void setName(const char *pName) { ; }
};

class newInterface
{
	virtual ~newInterface() { }
	virtual int getHeight() = 0;
	virtual int getWidth() = 0;
};

class testExtractInterface : public newInterface
{
	int getHeight()	{ return 1; }
	int getWidth()	{ return 1; }
	void setName(const char *pName) { }
};

class newInterfaceAdapter : public newInterface
{
public:
	newInterfaceAdapter(testExtractInterface &target) : m_target(target)
	{ }
	int getHeight()	{ return m_target.getHeight(); }
	int getWidth()	{ return m_target.getWidth(); }
	void setName(const char *pName) { m_target.setName(pName); }

private:
	testExtractInterface &m_target;
};