racket/collects/2htdp/private
Robby Findler 1f02106318 2htdp/image
normalize the internal representation of bitmaps so it always uses an alpha
bitmap instead of sometimes using a mask bitmap and sometimes using alpha.
This also fixes a bug where the library would get consfused when it saved
a bitmap to a file, since it didn't record if it was an alpha bitmap or not.

This improves the save files that contain images, cutting the size for bitmaps
in half (bringing the drracket save file down to a mere 25x larger than the
png file format for the example I was using...)
2011-08-22 19:09:52 -05:00
..
csv A long overdue scan to eliminate files without terminating newlines. 2011-06-28 02:01:41 -04:00
check-aux.rkt eliminated superfluous require for-syntax, refactored and cleaned up; fixed bug in test? 2011-07-02 13:34:02 -04:00
checked-cell.rkt Updated the error messages of the world and universe teachpacks. 2011-07-06 05:35:27 -04:00
clauses-spec-and-process.rkt Revert "Give appropriate inferred names to `big-bang' clause RHSs." 2011-08-22 17:37:30 -04:00
clauses-spec-aux.rkt eliminated superfluous require for-syntax, refactored and cleaned up; fixed bug in test? 2011-07-02 13:34:02 -04:00
define-keywords.rkt eliminated superfluous require for-syntax, refactored and cleaned up; fixed bug in test? 2011-07-02 13:34:02 -04:00
design.txt eliminated superfluous require for-syntax, refactored and cleaned up; fixed bug in test? 2011-07-02 13:34:02 -04:00
image-core.rkt A long overdue scan to eliminate files without terminating newlines. 2011-06-28 02:01:41 -04:00
image-more.rkt 2htdp/image 2011-08-22 19:09:52 -05:00
img-err.rkt Corrected an error message that said it wanted a real, but actually 2011-07-14 13:01:11 -04:00
last.rkt ".ss" -> ".rkt" scan done. 2011-07-02 10:37:53 -04:00
launch-many-worlds.rkt added launch-many-worlds/proc; Closes 10559 2011-08-03 11:20:05 -04:00
stop.rkt rename all files .ss -> .rkt 2010-04-27 16:50:15 -06:00
timer.rkt optional limit for number of ticks 2011-07-16 13:59:55 -04:00
universe-image.rkt ensure that dimensions of canvas are below 2000 by 2000; closes PR 11907 2011-05-09 17:59:23 -04:00
universe.rkt optional limit for number of ticks 2011-07-16 13:59:55 -04:00
utilities.rkt A long overdue scan to eliminate files without terminating newlines. 2011-06-28 02:01:41 -04:00
world.rkt bug fix: when the initial world is a final world, big-bang should use only the final draw handler -- if it exists 2011-08-05 12:46:25 -04:00