How to scale images to screen size in Pygame

Question

I was wondering how I would go about scaling the size of images in pygame projects to the resolution of the screen  For example  envisage the following scenario assuming windowed display mode for the time being  I assume full screen will be the same    I have a 1600x900 background image which of course displays natively in a 1600x900 window In a 1280x720 window I can obviously just scale this images  rect to 1280x720 What happens  however if I need to add  say a 300x300 px image at x y 1440 860  example sizes  that is sized to fit with the original 1600x900 background  Of course for the 1600x900 I can of course use the image natively but what about the smaller larger window sizes    Basically  how do I scale images to the window size and then position them accordingly  I guess there must be a REALLY easy automated method but right now I can t figure it out and quite frankly haven t got time to search for it     Thanks in advance  Ilmiont

User · Answer

If you scale 1600x900 to 1280x720 you have scale x   1280 0 1600 scale y   720 0 900  Then you can use it to find button size  and button position button width    300   scale x button height   300   scale y  button x   1440   scale x button y   860    scale y  If you scale 1280x720 to 1600x900 you have scale x   1600 0 1280 scale y   900 0 720  and rest is the same   I add  0 to value to make float - otherwise scale x  scale y will be rounded to integer - in this example to 0  zero   Python 2 x

User · Answer

You can scale the image with pygame transform scale   import pygame picture   pygame image load filename  picture   pygame transform scale picture   1280  720     You can then get the bounding rectangle of picture with  rect   picture get rect     and move the picture with  rect   rect move  x  y   screen blit picture  rect    where screen was set with something like  screen   pygame display set mode  1600  900       To allow your widgets to adjust to various screen sizes  you could make the display resizable   import os import pygame from pygame locals import    pygame init   screen   pygame display set mode  500  500   HWSURFACE   DOUBLEBUF   RESIZABLE  pic   pygame image load  image png   screen blit pygame transform scale pic   500  500     0  0   pygame display flip   while True      pygame event pump       event   pygame event wait       if event type    QUIT          pygame display quit       elif event type    VIDEORESIZE          screen   pygame display set mode              event dict  size    HWSURFACE   DOUBLEBUF   RESIZABLE          screen blit pygame transform scale pic  event dict  size      0  0           pygame display flip

[python] How to scale images to screen size in Pygame

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