diff options
Diffstat (limited to 'generic/ttk/ttkScroll.c')
| -rw-r--r-- | generic/ttk/ttkScroll.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/generic/ttk/ttkScroll.c b/generic/ttk/ttkScroll.c index 5615eef..2ff3d8e 100644 --- a/generic/ttk/ttkScroll.c +++ b/generic/ttk/ttkScroll.c @@ -7,7 +7,7 @@ * * Scrollable interface: * - * + 'first' is controlled by [xy]view widget command + * + 'first' is controlled by [xy]view widget command * and other scrolling commands like 'see'; * + 'total' depends on widget contents; * + 'last' depends on first, total, and widget size. @@ -16,15 +16,15 @@ * * 1. User adjusts scrollbar, scrollbar widget calls its -command * 2. Scrollbar -command invokes the scrollee [xy]view widget method - * 3. TtkScrollviewCommand calls TtkScrollTo(), which updates + * 3. TtkScrollviewCommand calls TtkScrollTo(), which updates * 'first' and schedules a redisplay. - * 4. Once the scrollee knows 'total' and 'last' (typically in - * the LayoutProc), call TtkScrolled(h,first,last,total) to + * 4. Once the scrollee knows 'total' and 'last' (typically in + * the LayoutProc), call TtkScrolled(h,first,last,total) to * synchronize the scrollbar. * 5. The scrollee -[xy]scrollcommand is called (in an idle callback) * 6. Which calls the scrollbar 'set' method and redisplays the scrollbar. * - * If the scrollee has internal scrolling (e.g., a 'see' method), + * If the scrollee has internal scrolling (e.g., a 'see' method), * it should TtkScrollTo() directly (step 2). * * If the widget value changes, it should call TtkScrolled() (step 4). @@ -55,7 +55,7 @@ struct ScrollHandleRec */ ScrollHandle TtkCreateScrollHandle(WidgetCore *corePtr, Scrollable *scrollPtr) { - ScrollHandle h = (ScrollHandle)ckalloc(sizeof(*h)); + ScrollHandle h = ckalloc(sizeof(*h)); h->flags = 0; h->corePtr = corePtr; @@ -130,7 +130,7 @@ static void UpdateScrollbarBG(ClientData clientData) Tcl_Preserve((ClientData) interp); code = UpdateScrollbar(interp, h); if (code == TCL_ERROR && !Tcl_InterpDeleted(interp)) { - Tcl_BackgroundError(interp); + Tcl_BackgroundException(interp, code); } Tcl_Release((ClientData) interp); } @@ -141,7 +141,7 @@ static void UpdateScrollbarBG(ClientData clientData) void TtkScrolled(ScrollHandle h, int first, int last, int total) { Scrollable *s = h->scrollPtr; - + /* Sanity-check inputs: */ if (total <= 0) { @@ -256,6 +256,6 @@ void TtkFreeScrollHandle(ScrollHandle h) if (h->flags & SCROLL_UPDATE_PENDING) { Tcl_CancelIdleCall(UpdateScrollbarBG, (ClientData)h); } - ckfree((ClientData)h); + ckfree(h); } |