Hi Jonathan et a - I've never understood the reason tk_scaling is touched in the TK code and unless someone else objects I'll try taking it out of the vanilla source.
thanks Miller On Tue, Jun 11, 2013 at 06:11:57PM -0700, Jonathan Wilkes wrote: > Hi list, > > From tcl/pd-gui: > # we are not using Tk scaling, so fix it to 1 on all platforms. This > # guarantees that patches will be pixel-exact on every platform > tk scaling 1 > > From #tcl on freenode: > <jancsika> hello. does tk scaling affect canvas items? > <ijchain> <emiliano> jancsika: no > > From my own experiments on Debian: > * setting the tk scaling to 1, 0.2, 3, or 200 does not alter > a canvas text item, either for positive (pointsize) font sizes > or negative (pixelsize) font sizes > * with version 8.5.11, setting tk scaling to 1, 0.2, 3, or 200 > _will_ change the actual number of pixels a canvas requests > from its parent _if_ you pack it without any option flags. > (e.g., scaling at 0.2 will request a tiny rectangle and scaling > at 200 will be bigger than the visible screen area, at least on > my laptop). However, Pd packs its canvas items to fill the > cavity provided by the toplevel parent (which always has > its geometry set explicitly), so no matter what tk scaling value > you set the canvas will be exactly the right size. > > You can check this by setting tk scaling to any value at all. > The tk widgets will of course look different (that's what tk > scaling affects, after all), but just click <ctrl-n> for a new > patch and it will look exactly right. Also try: > > [label foo( > | > [vsl] > > ... and you will find that even iemguis have _exactly_ the > same font size no matter what you provided for tk scaling. > > Effect of [tk scaling 1] command: > causes tiny fonts in various widgets on Windows, which then > requires a dev to fire up Pd on a Windows machine and > screw around with the options database until they find the > correct string to set the menufont > > Side effect: if you want to embed tk widgets in a patch, not > having tk scaling frozen at "1" may end up making those widgets > have different sizes on different platforms. But even with > [tk scaling 1] you cannot guarantee pixel-exactness in this case, > because tk uses native widgets from the OS, and different OSes > will request different padding, font-sizes, images, etc. for those > widgets. > > So-- is there any reason not to remove "tk scaling 1"? > > Thanks, > Jonathan > _______________________________________________ > Pd-dev mailing list > Pd-dev@iem.at > http://lists.puredata.info/listinfo/pd-dev _______________________________________________ Pd-dev mailing list Pd-dev@iem.at http://lists.puredata.info/listinfo/pd-dev