diff options
| author | hobbs <hobbs> | 2004-09-18 22:48:50 (GMT) |
|---|---|---|
| committer | hobbs <hobbs> | 2004-09-18 22:48:50 (GMT) |
| commit | 1b43feb2bd2b11b4efd4eba1a84ba0d421d00a30 (patch) | |
| tree | 259a195a5f5db24f212640f312acdbf3f1beeb03 /win | |
| parent | d13722ccef1255b9bf4059b3c47cf34d73a290db (diff) | |
| download | tk-1b43feb2bd2b11b4efd4eba1a84ba0d421d00a30.zip tk-1b43feb2bd2b11b4efd4eba1a84ba0d421d00a30.tar.gz tk-1b43feb2bd2b11b4efd4eba1a84ba0d421d00a30.tar.bz2 | |
* win/tkWinWm.c (WmAttributesCmd): correct -alpha 0.0/1.0 setting
and round the value.
Diffstat (limited to 'win')
| -rw-r--r-- | win/tkWinWm.c | 33 |
1 files changed, 14 insertions, 19 deletions
diff --git a/win/tkWinWm.c b/win/tkWinWm.c index 175fc9a..6b7305a 100644 --- a/win/tkWinWm.c +++ b/win/tkWinWm.c @@ -12,7 +12,7 @@ * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tkWinWm.c,v 1.54.2.8 2004/09/17 23:36:16 hobbs Exp $ + * RCS: @(#) $Id: tkWinWm.c,v 1.54.2.9 2004/09/18 22:48:55 hobbs Exp $ */ #include "tkWinInt.h" @@ -2089,9 +2089,11 @@ UpdateWrapper(winPtr) /* * The user supplies a double from [0..1], but Windows wants an * int (transparent) 0..255 (opaque), so do the translation. + * Add the 0.5 to round the value. */ setLayeredWindowAttributesProc((HWND) wmPtr->wrapper, - (COLORREF) NULL, (BYTE) (wmPtr->alpha * 255), LWA_ALPHA); + (COLORREF) NULL, (BYTE) (wmPtr->alpha * 255 + 0.5), + LWA_ALPHA); } place.length = sizeof(WINDOWPLACEMENT); @@ -2838,7 +2840,6 @@ WmAttributesCmd(tkwin, winPtr, interp, objc, objv) LONG style, exStyle, styleBit, *stylePtr; char *string; int i, boolean, length; - double alpha; if (objc < 3) { configArgs: @@ -2852,7 +2853,6 @@ WmAttributesCmd(tkwin, winPtr, interp, objc, objv) } exStyle = wmPtr->exStyleConfig; style = wmPtr->styleConfig; - alpha = wmPtr->alpha; if (objc == 3) { Tcl_Obj *objPtr = Tcl_NewObj(); Tcl_ListObjAppendElement(NULL, objPtr, @@ -2929,19 +2929,15 @@ WmAttributesCmd(tkwin, winPtr, interp, objc, objv) } else { *stylePtr &= ~styleBit; } - if ((dval > 0) && (alpha > 0)) { - /* - * If we are just changing transparency level, just - * adjust the window setting (no UpdateWrapper). - * The user supplies (opaque) 0..100 (transparent), - * but Windows wants (transparent) 0..255 (opaque), so - * do the translation. - */ - alpha = wmPtr->alpha; - setLayeredWindowAttributesProc((HWND) wmPtr->wrapper, - (COLORREF) NULL, (BYTE) (wmPtr->alpha * 255), - LWA_ALPHA); - } + /* + * Set the window directly regardless of UpdateWrapper. + * The user supplies (opaque) 0..100 (transparent), but + * Windows wants (transparent) 0..255 (opaque), so do the + * translation. Add the 0.5 to round the value. + */ + setLayeredWindowAttributesProc((HWND) wmPtr->wrapper, + (COLORREF) NULL, (BYTE) (wmPtr->alpha * 255 + 0.5), + LWA_ALPHA); } } } else { @@ -2959,8 +2955,7 @@ WmAttributesCmd(tkwin, winPtr, interp, objc, objv) } } } - if ((wmPtr->styleConfig != style) || (wmPtr->alpha != alpha) || - (wmPtr->exStyleConfig != exStyle)) { + if ((wmPtr->styleConfig != style) || (wmPtr->exStyleConfig != exStyle)) { wmPtr->styleConfig = style; wmPtr->exStyleConfig = exStyle; /* |