diff options
Diffstat (limited to 'generic/tk3d.c')
| -rw-r--r-- | generic/tk3d.c | 122 |
1 files changed, 64 insertions, 58 deletions
diff --git a/generic/tk3d.c b/generic/tk3d.c index caa40dd..2920c76 100644 --- a/generic/tk3d.c +++ b/generic/tk3d.c @@ -19,7 +19,7 @@ * by Tk_GetReliefFromObj. */ -static CONST char *reliefStrings[] = { +static const char *const reliefStrings[] = { "flat", "groove", "raised", "ridge", "solid", "sunken", NULL }; @@ -30,6 +30,7 @@ static CONST char *reliefStrings[] = { static void BorderInit(TkDisplay *dispPtr); static void DupBorderObjProc(Tcl_Obj *srcObjPtr, Tcl_Obj *dupObjPtr); +static void FreeBorderObj(Tcl_Obj *objPtr); static void FreeBorderObjProc(Tcl_Obj *objPtr); static int Intersect(XPoint *a1Ptr, XPoint *a2Ptr, XPoint *b1Ptr, XPoint *b2Ptr, XPoint *iPtr); @@ -45,7 +46,7 @@ static void ShiftLine(XPoint *p1Ptr, XPoint *p2Ptr, * is set. */ -Tcl_ObjType tkBorderObjType = { +const Tcl_ObjType tkBorderObjType = { "border", /* name */ FreeBorderObjProc, /* freeIntRepProc */ DupBorderObjProc, /* dupIntRepProc */ @@ -71,8 +72,8 @@ Tcl_ObjType tkBorderObjType = { * Side effects: * The border is added to an internal database with a reference count. * For each call to this function, there should eventually be a call to - * FreeBorderObjProc so that the database is cleaned up when borders - * aren't in use anymore. + * FreeBorderObj so that the database is cleaned up when borders aren't + * in use anymore. * *---------------------------------------------------------------------- */ @@ -89,7 +90,7 @@ Tk_Alloc3DBorderFromObj( if (objPtr->typePtr != &tkBorderObjType) { InitBorderObj(objPtr); } - borderPtr = (TkBorder *) objPtr->internalRep.twoPtrValue.ptr1; + borderPtr = objPtr->internalRep.twoPtrValue.ptr1; /* * If the object currently points to a TkBorder, see if it's the one we @@ -103,7 +104,7 @@ Tk_Alloc3DBorderFromObj( * longer in use. Clear the reference. */ - FreeBorderObjProc(objPtr); + FreeBorderObj(objPtr); borderPtr = NULL; } else if ((Tk_Screen(tkwin) == borderPtr->screen) && (Tk_Colormap(tkwin) == borderPtr->colormap)) { @@ -116,9 +117,7 @@ Tk_Alloc3DBorderFromObj( * The object didn't point to the border that we wanted. Search the list * of borders with the same name to see if one of the others is the right * one. - */ - - /* + * * If the cached value is NULL, either the object type was not a color * going in, or the object is a color type but had previously been freed. * @@ -128,16 +127,16 @@ Tk_Alloc3DBorderFromObj( */ if (borderPtr != NULL) { - TkBorder *firstBorderPtr = - (TkBorder *) Tcl_GetHashValue(borderPtr->hashPtr); - FreeBorderObjProc(objPtr); + TkBorder *firstBorderPtr = Tcl_GetHashValue(borderPtr->hashPtr); + + FreeBorderObj(objPtr); for (borderPtr = firstBorderPtr ; borderPtr != NULL; borderPtr = borderPtr->nextPtr) { if ((Tk_Screen(tkwin) == borderPtr->screen) - && (Tk_Colormap(tkwin) == borderPtr->colormap)) { + && (Tk_Colormap(tkwin) == borderPtr->colormap)) { borderPtr->resourceRefCount++; borderPtr->objRefCount++; - objPtr->internalRep.twoPtrValue.ptr1 = (void *) borderPtr; + objPtr->internalRep.twoPtrValue.ptr1 = borderPtr; return (Tk_3DBorder) borderPtr; } } @@ -149,7 +148,7 @@ Tk_Alloc3DBorderFromObj( borderPtr = (TkBorder *) Tk_Get3DBorder(interp, tkwin, Tcl_GetString(objPtr)); - objPtr->internalRep.twoPtrValue.ptr1 = (void *) borderPtr; + objPtr->internalRep.twoPtrValue.ptr1 = borderPtr; if (borderPtr != NULL) { borderPtr->objRefCount++; } @@ -201,7 +200,7 @@ Tk_Get3DBorder( hashPtr = Tcl_CreateHashEntry(&dispPtr->borderTable, colorName, &isNew); if (!isNew) { - existingBorderPtr = (TkBorder *) Tcl_GetHashValue(hashPtr); + existingBorderPtr = Tcl_GetHashValue(hashPtr); for (borderPtr = existingBorderPtr; borderPtr != NULL; borderPtr = borderPtr->nextPtr) { if ((Tk_Screen(tkwin) == borderPtr->screen) @@ -318,7 +317,7 @@ Tk_Draw3DRectangle( *-------------------------------------------------------------- */ -CONST char * +const char * Tk_NameOf3DBorder( Tk_3DBorder border) /* Token for border. */ { @@ -426,7 +425,7 @@ Tk_Free3DBorder( return; } - prevPtr = (TkBorder *) Tcl_GetHashValue(borderPtr->hashPtr); + prevPtr = Tcl_GetHashValue(borderPtr->hashPtr); TkpFreeBorder(borderPtr); if (borderPtr->bgColorPtr != NULL) { Tk_FreeColor(borderPtr->bgColorPtr); @@ -462,7 +461,7 @@ Tk_Free3DBorder( prevPtr->nextPtr = borderPtr->nextPtr; } if (borderPtr->objRefCount == 0) { - ckfree((char *) borderPtr); + ckfree(borderPtr); } } @@ -494,13 +493,13 @@ Tk_Free3DBorderFromObj( Tcl_Obj *objPtr) /* The Tcl_Obj * to be freed. */ { Tk_Free3DBorder(Tk_Get3DBorderFromObj(tkwin, objPtr)); - FreeBorderObjProc(objPtr); + FreeBorderObj(objPtr); } /* *--------------------------------------------------------------------------- * - * FreeBorderObjProc -- + * FreeBorderObjProc, FreeBorderObj -- * * This proc is called to release an object reference to a border. Called * when the object's internal rep is released or when the cached @@ -520,13 +519,21 @@ static void FreeBorderObjProc( Tcl_Obj *objPtr) /* The object we are releasing. */ { - TkBorder *borderPtr = (TkBorder *) objPtr->internalRep.twoPtrValue.ptr1; + FreeBorderObj(objPtr); + objPtr->typePtr = NULL; +} + +static void +FreeBorderObj( + Tcl_Obj *objPtr) /* The object we are releasing. */ +{ + TkBorder *borderPtr = objPtr->internalRep.twoPtrValue.ptr1; if (borderPtr != NULL) { borderPtr->objRefCount--; if ((borderPtr->objRefCount == 0) && (borderPtr->resourceRefCount == 0)) { - ckfree((char *) borderPtr); + ckfree(borderPtr); } objPtr->internalRep.twoPtrValue.ptr1 = NULL; } @@ -555,10 +562,10 @@ DupBorderObjProc( Tcl_Obj *srcObjPtr, /* The object we are copying from. */ Tcl_Obj *dupObjPtr) /* The object we are copying to. */ { - TkBorder *borderPtr = (TkBorder *) srcObjPtr->internalRep.twoPtrValue.ptr1; + TkBorder *borderPtr = srcObjPtr->internalRep.twoPtrValue.ptr1; dupObjPtr->typePtr = srcObjPtr->typePtr; - dupObjPtr->internalRep.twoPtrValue.ptr1 = (void *) borderPtr; + dupObjPtr->internalRep.twoPtrValue.ptr1 = borderPtr; if (borderPtr != NULL) { borderPtr->objRefCount++; @@ -643,7 +650,7 @@ Tk_GetReliefFromObj( int Tk_GetRelief( Tcl_Interp *interp, /* For error messages. */ - CONST char *name, /* Name of a relief type. */ + const char *name, /* Name of a relief type. */ int *reliefPtr) /* Where to store converted relief. */ { char c; @@ -655,12 +662,12 @@ Tk_GetRelief( *reliefPtr = TK_RELIEF_FLAT; } else if ((c == 'g') && (strncmp(name, "groove", length) == 0) && (length >= 2)) { - *reliefPtr = TK_RELIEF_GROOVE; + *reliefPtr = TK_RELIEF_GROOVE; } else if ((c == 'r') && (strncmp(name, "raised", length) == 0) && (length >= 2)) { *reliefPtr = TK_RELIEF_RAISED; } else if ((c == 'r') && (strncmp(name, "ridge", length) == 0)) { - *reliefPtr = TK_RELIEF_RIDGE; + *reliefPtr = TK_RELIEF_RIDGE; } else if ((c == 's') && (strncmp(name, "solid", length) == 0)) { *reliefPtr = TK_RELIEF_SOLID; } else if ((c == 's') && (strncmp(name, "sunken", length) == 0)) { @@ -668,7 +675,7 @@ Tk_GetRelief( } else { char buf[200]; - sprintf(buf, "bad relief type \"%.50s\": must be %s", + sprintf(buf, "bad relief \"%.50s\": must be %s", name, "flat, groove, raised, ridge, solid, or sunken"); Tcl_SetResult(interp, buf, TCL_VOLATILE); return TCL_ERROR; @@ -692,7 +699,7 @@ Tk_GetRelief( *-------------------------------------------------------------- */ -CONST char * +const char * Tk_NameOfRelief( int relief) /* One of TK_RELIEF_FLAT, TK_RELIEF_RAISED, or * TK_RELIEF_SUNKEN. */ @@ -768,9 +775,8 @@ Tk_Draw3DPolygon( */ if ((leftRelief == TK_RELIEF_GROOVE) || (leftRelief == TK_RELIEF_RIDGE)) { - int halfWidth; + int halfWidth = borderWidth/2; - halfWidth = borderWidth/2; Tk_Draw3DPolygon(tkwin, drawable, border, pointPtr, numPoints, halfWidth, (leftRelief == TK_RELIEF_GROOVE) ? TK_RELIEF_RAISED : TK_RELIEF_SUNKEN); @@ -980,8 +986,8 @@ Tk_Fill3DRectangle( if ((width > doubleBorder) && (height > doubleBorder)) { XFillRectangle(Tk_Display(tkwin), drawable, borderPtr->bgGC, x + borderWidth, y + borderWidth, - (unsigned int) (width - doubleBorder), - (unsigned int) (height - doubleBorder)); + (unsigned) (width - doubleBorder), + (unsigned) (height - doubleBorder)); } if (borderWidth) { Tk_Draw3DRectangle(tkwin, drawable, border, x, y, width, @@ -1083,19 +1089,18 @@ ShiftLine( XPoint *p3Ptr) /* Store coords of point on new line here. */ { int dx, dy, dxNeg, dyNeg; - - /* - * The table below is used for a quick approximation in computing the new - * point. An index into the table is 128 times the slope of the original - * line (the slope must always be between 0 and 1). The value of the table - * entry is 128 times the amount to displace the new line in y for each - * unit of perpendicular distance. In other words, the table maps from the - * tangent of an angle to the inverse of its cosine. If the slope of the - * original line is greater than 1, then the displacement is done in x - * rather than in y. - */ - - static int shiftTable[129]; + static int shiftTable[129]; /* Used for a quick approximation in computing + * the new point. An index into the table is + * 128 times the slope of the original line + * (the slope must always be between 0 and 1). + * The value of the table entry is 128 times + * the amount to displace the new line in y + * for each unit of perpendicular distance. In + * other words, the table maps from the + * tangent of an angle to the inverse of its + * cosine. If the slope of the original line + * is greater than 1, then the displacement is + * done in x rather than in y. */ /* * Initialize the table if this is the first time it is used. @@ -1249,7 +1254,7 @@ Tk_Get3DBorderFromObj( * cached in the internal representation of the Tcl_Obj. Check it out... */ - borderPtr = (TkBorder *) objPtr->internalRep.twoPtrValue.ptr1; + borderPtr = objPtr->internalRep.twoPtrValue.ptr1; if ((borderPtr != NULL) && (borderPtr->resourceRefCount > 0) && (Tk_Screen(tkwin) == borderPtr->screen) @@ -1277,12 +1282,12 @@ Tk_Get3DBorderFromObj( if (hashPtr == NULL) { goto error; } - for (borderPtr = (TkBorder *) Tcl_GetHashValue(hashPtr); - (borderPtr != NULL); borderPtr = borderPtr->nextPtr) { + for (borderPtr = Tcl_GetHashValue(hashPtr); borderPtr != NULL; + borderPtr = borderPtr->nextPtr) { if ((Tk_Screen(tkwin) == borderPtr->screen) && (Tk_Colormap(tkwin) == borderPtr->colormap)) { - FreeBorderObjProc(objPtr); - objPtr->internalRep.twoPtrValue.ptr1 = (void *) borderPtr; + FreeBorderObj(objPtr); + objPtr->internalRep.twoPtrValue.ptr1 = borderPtr; borderPtr->objRefCount++; return (Tk_3DBorder) borderPtr; } @@ -1329,7 +1334,7 @@ InitBorderObj( Tcl_GetString(objPtr); typePtr = objPtr->typePtr; if ((typePtr != NULL) && (typePtr->freeIntRepProc != NULL)) { - (*typePtr->freeIntRepProc)(objPtr); + typePtr->freeIntRepProc(objPtr); } objPtr->typePtr = &tkBorderObjType; objPtr->internalRep.twoPtrValue.ptr1 = NULL; @@ -1358,22 +1363,23 @@ Tcl_Obj * TkDebugBorder( Tk_Window tkwin, /* The window in which the border will be used * (not currently used). */ - char *name) /* Name of the desired color. */ + const char *name) /* Name of the desired color. */ { - TkBorder *borderPtr; Tcl_HashEntry *hashPtr; - Tcl_Obj *resultPtr, *objPtr; + Tcl_Obj *resultPtr; TkDisplay *dispPtr = ((TkWindow *) tkwin)->dispPtr; resultPtr = Tcl_NewObj(); hashPtr = Tcl_FindHashEntry(&dispPtr->borderTable, name); if (hashPtr != NULL) { - borderPtr = (TkBorder *) Tcl_GetHashValue(hashPtr); + TkBorder *borderPtr = Tcl_GetHashValue(hashPtr); + if (borderPtr == NULL) { Tcl_Panic("TkDebugBorder found empty hash table entry"); } for ( ; (borderPtr != NULL); borderPtr = borderPtr->nextPtr) { - objPtr = Tcl_NewObj(); + Tcl_Obj *objPtr = Tcl_NewObj(); + Tcl_ListObjAppendElement(NULL, objPtr, Tcl_NewIntObj(borderPtr->resourceRefCount)); Tcl_ListObjAppendElement(NULL, objPtr, |