ui_button.cpp/.h code clean

ihhub / fheroes2

fheroes2 is a recreation of Heroes of Might and Magic II game engine.

https://ihhub.github.io/fheroes2/

GNU General Public License v2.0

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Closed Districh-ru closed 1 month ago

Districh-ru commented 1 month ago

This PR updates the ui_button.cpp and ui_button.h code:

use unique_prt instead of new/delete;
remove the never set Display & output = Display::instance() argument and call Display::instance() only when it is needed for render;
make some methods inline (move from cpp to h);
...

ihhub commented 1 month ago

@Districh-ru , thank you very much for this cleanup!