Fix behavior of sf::Event::Resized

[kimci86]

Here is a clean fix (I hope) for issue #68.
I tested it on Windows 7 and it is working as intended.

[LaurentGomila]

It looks good. Have you tested it with different cases (window styles, sizes, actions, ...)?

[kimci86]

With those styles, resize events are pushed correctly :

• Default
• TitleBar | Resize
• Close | Resize

With those styles, resize events are never pushed :

• Close
• Titlebar
• Close | Titlebar
• None
• Fullscreen

I have tested the following actions :

• Drawing the window edges, on every side (one event)
• Minimizing and un-minimizing (no event)
• Maximizing and un-maximizing (one event)

[LaurentGomila]

Maximizing and un-maximizing (one event)

One event in total, or one event for each action?

[kimci86]

Maximizing and un-maximizing (one event)

One event in total, or one event for each action?

One event for each action.
Let me say that it also works when you double click the title bar.

[kimci86]

I wish to point out that I fixed an other bug by the way:
Before, the break for case WM_SIZE was into the if instructions.
This meant that on a minimise, a sf::Event::GainedFocus was pushed. :astonished:
See this line.

[LaurentGomila]

Oh... Thanks
😓