display

0 #include "display/window_pivot.hpp"

1

2 #include "display/utility.hpp"

3

4 namespace display

5 {

6

7 plc_t WindowPivot::place(plc_t aplc, piv_t piv, dim_t dim)

8 {

9 const auto [awth, ahth] = aplc.dim;

10 const auto [wth, hgt] = dim;

11

12 dim_t start(0, 0);

13 dim_t end(0, 0);

14

15 using display::add_lim, display::sub_lim;

16

17 switch (piv.x) {

18 case PvtX::Left:

19 start.width = wth_t(0);

20 end.width = add_lim(start.width, wth, awth);

21 break;

22 case PvtX::Center:

23 start.width = awth / 2 - wth / 2;

24 end.width = add_lim(start.width, wth, awth);

25 break;

26 case PvtX::Right:

27 end.width = awth;

28 start.width = end.width - wth;

29 break;

30 }

31

32 switch (piv.y) {

33 case PvtY::Top:

34 start.height = hgt_t(0);

35 end.height = add_lim(start.height, hgt, ahth);

36 break;

37 case PvtY::Center:

38 start.height = ahth / 2 - hgt / 2;

39 end.height = add_lim(start.height, hgt, ahth);

40 break;

41 case PvtY::Bottom:

42 end.height = ahth;

43 start.height = end.height - hgt;

44 break;

45 }

46

47 return {aplc.pos + start, end - start};

48 }

49

50 } // namespace display