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Re: different compiler produces different look? [message #5939 is a reply to message #5933]

Wed, 25 October 2006 15:07

mirek
Messages: 13984
Registered: November 2005

Ultimate Member

forlano wrote on Wed, 25 October 2006 08:53

luzr wrote on Wed, 25 October 2006 02:50

Definitely a bug, either in U++ or your code, most likely uninitialized variable somewhere.

Can you create a simple testcase package?

Mirek

After some investigation I discovered what may be a problem in my app.
I've one arrayctrl that uses Display in a file

struct FontDisplay : Display {
	virtual void Paint(Draw& w, const Rect& r, const Value& q,
		               Color ink, Color paper, dword style) const
	{	Font fnt = Courier(13).Bold(); //Font(q, r.Height() - 2);
		String txt = AsString(q);
	 	w.DrawRect(r, paper);
		w.DrawText(r.left + 2, r.top + (r.Height() - GetTextSize(txt, fnt).cy) / 2, txt, fnt, ink);
	}
};

Then in another file another arrayctrl use the almost identical Display

struct FontDisplay : Display {
	virtual void Paint(Draw& w, const Rect& r, const Value& q,
		               Color ink, Color paper, dword style) const
	{		
		Font fnt = Courier(14); //Font(q, r.Height() - 2);
		String txt = AsString(q);
	 	w.DrawRect(r, paper);
		w.DrawText(r.left + 2, r.top + (r.Height() - GetTextSize(txt, fnt).cy) / 2, txt, fnt, ink); 
	}
};

It seems that the two Display collides in some manner. In fact if I remove one of them the look is the same with both compiler. Otherwise it is different: With MSC8 both have BOLD font; with Mingw both haven't the BOLD font.
Have I use only one Display?

Is this explanation enough to let you to understand the problem? Otherwise I try to do the package.

Luigi

Definitely, this is the problem. Actually, this is rather a problem in C++ build process (non-U++ related). You simply cannot have to different classes with the same name. Surprisingly, there is some problem detecting this situation in linker (I am not quite sure why, Tom know that Smile

.

Moral of the story: Class name clash is problem.

Mirek

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