Added code to propagate updates on tk images.

Added code to construct the valid region of
an image (shaped) even if TkPhotoGetValidRegion
is not available (perl or not a photo).
Added a fun telling if a point is on the active
area of the image.
Changed the internal api for using images to
match the changes above.
A tkfont reference is kept for each txf using
the font so that the font can be freed if no
longer used.
Use of the max texture size is now reliable and
texture allocation for fonts start with the largest
tex and increase the tex height from 64 to the max
tex limit. This seems to work ok for large fonts.

0 files changed, 0 insertions, 0 deletions