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| author | dkf <donal.k.fellows@manchester.ac.uk> | 2012-03-07 14:25:24 (GMT) |
|---|---|---|
| committer | dkf <donal.k.fellows@manchester.ac.uk> | 2012-03-07 14:25:24 (GMT) |
| commit | caa178407bf99803afd0702ce1225cda259ccc73 (patch) | |
| tree | 9e54688720c5829660d87bab64646b8ff3db701e /generic | |
| parent | 737dfa9bcb107e65f0a5070c248eeffc9b48a029 (diff) | |
| parent | 1315c522b0ca1b7e4ebb733c2bfbf4290ac3ecb6 (diff) | |
| download | tk-caa178407bf99803afd0702ce1225cda259ccc73.zip tk-caa178407bf99803afd0702ce1225cda259ccc73.tar.gz tk-caa178407bf99803afd0702ce1225cda259ccc73.tar.bz2 | |
* generic/tkObj.c (GetPixelsFromObjEx): [Bug 3497848]: Better rounding
of pixel values to integers.
Diffstat (limited to 'generic')
| -rw-r--r-- | generic/tkObj.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/generic/tkObj.c b/generic/tkObj.c index 7affac4..2e45e0e 100644 --- a/generic/tkObj.c +++ b/generic/tkObj.c @@ -211,7 +211,7 @@ GetPixelsFromObjEx( if (dblPtr != NULL) { *dblPtr = d; } - *intPtr = (int) d; + *intPtr = (int) (d<0 ? d-0.5 : d+0.5); return TCL_OK; } else if (objPtr->typePtr == typeCache->intTypePtr) { (void) Tcl_GetIntFromObj(interp, objPtr, intPtr); @@ -253,11 +253,7 @@ GetPixelsFromObjEx( d *= bias[pixelPtr->units] * WidthOfScreen(Tk_Screen(tkwin)); d /= WidthMMOfScreen(Tk_Screen(tkwin)); } - if (d < 0) { - pixelPtr->returnValue = (int) (d - 0.5); - } else { - pixelPtr->returnValue = (int) (d + 0.5); - } + pixelPtr->returnValue = (int) (d<0 ? d-0.5 : d+0.5); pixelPtr->tkwin = tkwin; if (dblPtr) { *dblPtr = d; |