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Diffstat (limited to 'src/sliceitoff/display/scaling.py')
| -rw-r--r-- | src/sliceitoff/display/scaling.py | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/src/sliceitoff/display/scaling.py b/src/sliceitoff/display/scaling.py new file mode 100644 index 0000000..6be00da --- /dev/null +++ b/src/sliceitoff/display/scaling.py @@ -0,0 +1,36 @@ +import pygame + +from .static import INTERNAL_WIDTH, INTERNAL_HEIGHT + +class Scaling(): + factor = 0.02 + left = 0 + top = 0 + + @staticmethod + def area_to_rect(area: tuple) -> pygame.Rect: + """ converts area coordinates to pygame.Rect""" + return pygame.Rect( + area[0] * __class__.factor + __class__.left, + area[1] * __class__.factor + __class__.top, + area[2] * __class__.factor, + area[3] * __class__.factor) + + @staticmethod + def scale_coordinates(coords: tuple ) -> tuple: + return ( + coords[0] * __class__.factor + __class__.left, + coords[1] * __class__.factor + __class__.top) + + @staticmethod + def update_scaling(size: tuple) -> None: + if size[0] / size[1] <= INTERNAL_WIDTH / INTERNAL_HEIGHT: + __class__.factor = size[0] / INTERNAL_WIDTH + __class__.left = 0 + __class__.top = (size[1] - INTERNAL_HEIGHT * __class__.factor) // 2 + else: + __class__.factor = size[1] / INTERNAL_HEIGHT + __class__.left = (size[0] - INTERNAL_WIDTH * __class__.factor) // 2 + __class__.top = 0 + +
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