diff options
Diffstat (limited to 'generic/tkCanvas.c')
| -rw-r--r-- | generic/tkCanvas.c | 65 |
1 files changed, 41 insertions, 24 deletions
diff --git a/generic/tkCanvas.c b/generic/tkCanvas.c index c696d65..97518f9 100644 --- a/generic/tkCanvas.c +++ b/generic/tkCanvas.c @@ -269,7 +269,7 @@ static int ConfigureCanvas(Tcl_Interp *interp, Tcl_Obj *const *argv, int flags); static void DestroyCanvas(char *memPtr); static void DisplayCanvas(ClientData clientData); -static void DoItem(Tcl_Interp *interp, +static void DoItem(Tcl_Obj *accumObj, Tk_Item *itemPtr, Tk_Uid tag); static void EventuallyRedrawItem(TkCanvas *canvasPtr, Tk_Item *itemPtr); @@ -333,10 +333,10 @@ static const Tk_ClassProcs canvasClass = { #ifdef USE_OLD_TAG_SEARCH #define FIRST_CANVAS_ITEM_MATCHING(objPtr,searchPtrPtr,errorExitClause) \ - (itemPtr) = StartTagSearch(canvasPtr,(objPtr),&search) + itemPtr = StartTagSearch(canvasPtr,(objPtr),&search) #define FOR_EVERY_CANVAS_ITEM_MATCHING(objPtr,searchPtrPtr,errorExitClause) \ - for ((itemPtr) = StartTagSearch(canvasPtr, (objPtr), &search); \ - (itemPtr) != NULL; (itemPtr) = NextItem(&search)) + for (itemPtr = StartTagSearch(canvasPtr, (objPtr), &search); \ + itemPtr != NULL; itemPtr = NextItem(&search)) #define FIND_ITEMS(objPtr, n) \ FindItems(interp, canvasPtr, objc, objv, (objPtr), (n)) #define RELINK_ITEMS(objPtr, itemPtr) \ @@ -1504,9 +1504,13 @@ CanvasWidgetCmd( FIRST_CANVAS_ITEM_MATCHING(objv[2], &searchPtr, goto done); if (itemPtr != NULL) { int i; + Tcl_Obj *resultObj = Tcl_NewObj(); + for (i = 0; i < itemPtr->numTags; i++) { - Tcl_AppendElement(interp, (char *) itemPtr->tagPtr[i]); + Tcl_ListObjAppendElement(NULL, resultObj, + Tcl_NewStringObj(itemPtr->tagPtr[i], -1)); } + Tcl_SetObjResult(interp, resultObj); } break; case CANV_ICURSOR: { @@ -4162,23 +4166,23 @@ TagSearchNext( * DoItem -- * * This is a utility function called by FindItems. It either adds - * itemPtr's id to the result forming in interp, or it adds a new tag to + * itemPtr's id to the list being constructed, or it adds a new tag to * itemPtr, depending on the value of tag. * * Results: * None. * * Side effects: - * If tag is NULL then itemPtr's id is added as a list element to the - * interp's result; otherwise tag is added to itemPtr's list of tags. + * If tag is NULL then itemPtr's id is added as an element to the + * supplied object; otherwise tag is added to itemPtr's list of tags. * *-------------------------------------------------------------- */ static void DoItem( - Tcl_Interp *interp, /* Interpreter in which to (possibly) record - * item id. */ + Tcl_Obj *accumObj, /* Object in which to (possibly) record item + * id. */ Tk_Item *itemPtr, /* Item to (possibly) modify. */ Tk_Uid tag) /* Tag to add to those already present for * item, or NULL. */ @@ -4191,10 +4195,7 @@ DoItem( */ if (tag == NULL) { - char msg[TCL_INTEGER_SPACE]; - - sprintf(msg, "%d", itemPtr->id); - Tcl_AppendElement(interp, msg); + Tcl_ListObjAppendElement(NULL, accumObj, Tcl_NewIntObj(itemPtr->id)); return; } @@ -4281,6 +4282,7 @@ FindItems( Tk_Item *itemPtr; Tk_Uid uid; int index, result; + Tcl_Obj *resultObj; static const char *const optionStrings[] = { "above", "all", "below", "closest", "enclosed", "overlapping", "withtag", NULL @@ -4312,7 +4314,9 @@ FindItems( lastPtr = itemPtr; } if ((lastPtr != NULL) && (lastPtr->nextPtr != NULL)) { - DoItem(interp, lastPtr->nextPtr, uid); + resultObj = Tcl_NewObj(); + DoItem(resultObj, lastPtr->nextPtr, uid); + Tcl_SetObjResult(interp, resultObj); } break; } @@ -4322,10 +4326,12 @@ FindItems( return TCL_ERROR; } + resultObj = Tcl_NewObj(); for (itemPtr = canvasPtr->firstItemPtr; itemPtr != NULL; itemPtr = itemPtr->nextPtr) { - DoItem(interp, itemPtr, uid); + DoItem(resultObj, itemPtr, uid); } + Tcl_SetObjResult(interp, resultObj); break; case CANV_BELOW: @@ -4335,10 +4341,10 @@ FindItems( } FIRST_CANVAS_ITEM_MATCHING(objv[first+1], searchPtrPtr, return TCL_ERROR); - if (itemPtr != NULL) { - if (itemPtr->prevPtr != NULL) { - DoItem(interp, itemPtr->prevPtr, uid); - } + if ((itemPtr != NULL) && (itemPtr->prevPtr != NULL)) { + resultObj = Tcl_NewObj(); + DoItem(resultObj, itemPtr->prevPtr, uid); + Tcl_SetObjResult(interp, resultObj); } break; case CANV_CLOSEST: { @@ -4428,7 +4434,9 @@ FindItems( itemPtr = canvasPtr->firstItemPtr; } if (itemPtr == startPtr) { - DoItem(interp, closestPtr, uid); + resultObj = Tcl_NewObj(); + DoItem(resultObj, closestPtr, uid); + Tcl_SetObjResult(interp, resultObj); return TCL_OK; } if (itemPtr->state == TK_STATE_HIDDEN || @@ -4466,10 +4474,16 @@ FindItems( Tcl_WrongNumArgs(interp, first+1, objv, "tagOrId"); return TCL_ERROR; } + resultObj = Tcl_NewObj(); FOR_EVERY_CANVAS_ITEM_MATCHING(objv[first+1], searchPtrPtr, - return TCL_ERROR) { - DoItem(interp, itemPtr, uid); + goto badWithTagSearch) { + DoItem(resultObj, itemPtr, uid); } + Tcl_SetObjResult(interp, resultObj); + return TCL_OK; + badWithTagSearch: + Tcl_DecrRefCount(resultObj); + return TCL_ERROR; } return TCL_OK; } @@ -4514,6 +4528,7 @@ FindArea( double rect[4], tmp; int x1, y1, x2, y2; Tk_Item *itemPtr; + Tcl_Obj *resultObj; if ((Tk_CanvasGetCoordFromObj(interp, (Tk_Canvas) canvasPtr, objv[0], &rect[0]) != TCL_OK) @@ -4541,6 +4556,7 @@ FindArea( y1 = (int) (rect[1] - 1.0); x2 = (int) (rect[2] + 1.0); y2 = (int) (rect[3] + 1.0); + resultObj = Tcl_NewObj(); for (itemPtr = canvasPtr->firstItemPtr; itemPtr != NULL; itemPtr = itemPtr->nextPtr) { if (itemPtr->state == TK_STATE_HIDDEN || @@ -4553,9 +4569,10 @@ FindArea( continue; } if (ItemOverlap(canvasPtr, itemPtr, rect) >= enclosed) { - DoItem(interp, itemPtr, uid); + DoItem(resultObj, itemPtr, uid); } } + Tcl_SetObjResult(interp, resultObj); return TCL_OK; } |