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yutani: normalize rotation angles

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This commit is contained in:
K. Lange 2023-04-16 14:36:11 +09:00
parent 0e3d51a10a
commit e01aae18cd
1 changed files with 3 additions and 1 deletions
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4
apps/compositor.c
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@ -2193,7 +2193,9 @@ static void handle_mouse_event(yutani_globals_t * yg, struct yutani_msg_mouse_ev
int32_t y_diff = yg->mouse_y / MOUSE_SCALE - (yg->mouse_window->y + yg->mouse_window->height / 2);
int new_r = atan2(x_diff, y_diff) * 180.0 / (-M_PI);
mark_window(yg, yg->mouse_window);
yg->mouse_window->rotation = new_r + yg->mouse_init_r;
/* Normalize to -179~180 range */
int nr = (new_r + yg->mouse_init_r + 360) % 360;
yg->mouse_window->rotation = nr > 180 ? nr - 360 : nr;
mark_window(yg, yg->mouse_window);
}
}