Exemple #1
0
static int
GenerateButtonEvent(MouseEventData * medPtr)
{
    Tk_Window tkwin;
    int dummy;
    TkDisplay *dispPtr;

#if UNUSED
    /*
     * ButtonDown events will always occur in the front
     * window. ButtonUp events, however, may occur anywhere
     * on the screen. ButtonUp events should only be sent
     * to Tk if in the front window or during an implicit grab.
     */
    if ((medPtr->activeNonFloating == NULL)
	    || ((!(TkpIsWindowFloating(medPtr->whichWin))
	    && (medPtr->activeNonFloating != medPtr->whichWin))
	    && TkMacOSXGetCapture() == NULL)) {
	return false;
    }
#endif

    dispPtr = TkGetDisplayList();
    tkwin = Tk_IdToWindow(dispPtr->display, medPtr->window);

    if (tkwin != NULL) {
	tkwin = Tk_TopCoordsToWindow(tkwin, medPtr->local.h, medPtr->local.v,
		&dummy, &dummy);
    }

    Tk_UpdatePointer(tkwin, medPtr->global.h, medPtr->global.v, medPtr->state);

    return true;
}
Exemple #2
0
static int
GeneratePollingEvents(MouseEventData * medPtr)
{
    Tk_Window tkwin, rootwin, grabWin;
    int local_x, local_y;
    TkDisplay *dispPtr;


    grabWin = TkMacOSXGetCapture();

    if ((!TkpIsWindowFloating(medPtr->whichWin)
	    && (medPtr->activeNonFloating != medPtr->whichWin))) {
	/*
	 * If the window for this event is not floating, and is not the
	 * active non-floating window, don't generate polling events.
	 * We don't send events to backgrounded windows. So either send
	 * it to the grabWin, or NULL if there is no grabWin.
	 */

	tkwin = grabWin;
    } else {
	/*
	 * First check whether the toplevel containing this mouse
	 * event is the grab window. If not, then send the event
	 * to the grab window. Otherwise, set tkWin to the subwindow
	 * which most closely contains the mouse event.
	 */

	dispPtr = TkGetDisplayList();
	rootwin = Tk_IdToWindow(dispPtr->display, medPtr->window);
	if ((rootwin == NULL)
		|| ((grabWin != NULL) && (rootwin != grabWin))) {
	    tkwin = grabWin;
	} else {
	    tkwin = Tk_TopCoordsToWindow(rootwin,
		    medPtr->local.h, medPtr->local.v,
		    &local_x, &local_y);
	}
    }

    /*
     * The following call will generate the appropiate X events and
     * adjust any state that Tk must remember.
     */

    Tk_UpdatePointer(tkwin, medPtr->global.h, medPtr->global.v,
	    medPtr->state);

    return true;
}
Exemple #3
0
static void
BringWindowForward(
    WindowRef wRef,
    int isFrontProcess,
    int frontWindowOnly)
{
    if (wRef && !TkpIsWindowFloating(wRef) && IsValidWindowPtr(wRef)) {
	WindowRef frontWindow = FrontNonFloatingWindow();
	WindowModality frontWindowModality = kWindowModalityNone;
	
	if (frontWindow && frontWindow != wRef) {
	    ChkErr(GetWindowModality, frontWindow, &frontWindowModality, NULL);
	}
	if (frontWindowModality != kWindowModalityAppModal) {
	    Window window = TkMacOSXGetXWindow(wRef);

	    if (window != None) {
		TkDisplay *dispPtr = TkGetDisplayList();
		TkWindow * winPtr = (TkWindow *)Tk_IdToWindow(dispPtr->display,
			window);

		if (winPtr && winPtr->wmInfoPtr &&
			winPtr->wmInfoPtr->master != None) {
		    TkWindow *masterWinPtr = (TkWindow *)Tk_IdToWindow(
			    dispPtr->display, winPtr->wmInfoPtr->master);

		    if (masterWinPtr && masterWinPtr->window != None &&
			    TkMacOSXHostToplevelExists(masterWinPtr)) {
			WindowRef masterMacWin =
				TkMacOSXDrawableWindow(masterWinPtr->window);

			if (masterMacWin) {
			    BringToFront(masterMacWin);
			}
		    }
		}
	    }
	    SelectWindow(wRef);
	} else {
	    frontWindowOnly = 0;
	}
    }
    if (!isFrontProcess) {
	ProcessSerialNumber ourPsn = {0, kCurrentProcess};

	ChkErr(SetFrontProcessWithOptions, &ourPsn, frontWindowOnly ?
	    kSetFrontProcessFrontWindowOnly : 0);
    }
}
Exemple #4
0
void
TkpDisplayScrollbar(
    ClientData clientData)	/* Information about window. */
{
    register TkScrollbar *scrollPtr = (TkScrollbar *) clientData;
    register MacScrollbar *macScrollPtr = (MacScrollbar *) clientData;
    register Tk_Window tkwin = scrollPtr->tkwin;
    
    MacDrawable *macDraw;
    CGrafPtr saveWorld;
    GDHandle saveDevice;
    GWorldPtr destPort;
    WindowRef windowRef;
    
    if ((scrollPtr->tkwin == NULL) || !Tk_IsMapped(tkwin)) {
	goto done;
    }

    /*
     * Draw the focus or any 3D relief we may have.
     */
    if (scrollPtr->highlightWidth != 0) {
	GC fgGC, bgGC;

	bgGC = Tk_GCForColor(scrollPtr->highlightBgColorPtr,
		Tk_WindowId(tkwin));

	if (scrollPtr->flags & GOT_FOCUS) {
	    fgGC = Tk_GCForColor(scrollPtr->highlightColorPtr,
		    Tk_WindowId(tkwin));
	    TkpDrawHighlightBorder(tkwin, fgGC, bgGC, scrollPtr->highlightWidth,
		Tk_WindowId(tkwin));
	} else {
	    TkpDrawHighlightBorder(tkwin, bgGC, bgGC, scrollPtr->highlightWidth,
		Tk_WindowId(tkwin));
	}
    }
    Tk_Draw3DRectangle(tkwin, Tk_WindowId(tkwin), scrollPtr->bgBorder,
	    scrollPtr->highlightWidth, scrollPtr->highlightWidth,
	    Tk_Width(tkwin) - 2*scrollPtr->highlightWidth,
	    Tk_Height(tkwin) - 2*scrollPtr->highlightWidth,
	    scrollPtr->borderWidth, scrollPtr->relief);

    /*
     * Set up port for drawing Macintosh control.
     */
    macDraw = (MacDrawable *) Tk_WindowId(tkwin);
    destPort = TkMacGetDrawablePort(Tk_WindowId(tkwin));
    GetGWorld(&saveWorld, &saveDevice);
    SetGWorld(destPort, NULL);
    TkMacSetUpClippingRgn(Tk_WindowId(tkwin));

    if (macScrollPtr->sbHandle == NULL) {
        Rect r;
        WindowRef frontNonFloating;
        
        r.left = r.top = 0;
        r.right = r.bottom = 1;
	macScrollPtr->sbHandle = NewControl((WindowRef) destPort, &r, "\p",
		false, (short) 500, 0, 1000,
		scrollBarProc, (SInt32) scrollPtr);

	/*
	 * If we are foremost than make us active.
	 */
	
	if (TkMacHaveAppearance() >= 0x110) {
	    frontNonFloating = FrontNonFloatingWindow();
	} else {
	    frontNonFloating = FrontWindow();
	}
	
	if ((WindowPtr) destPort == FrontWindow() || TkpIsWindowFloating((WindowPtr) destPort)) {
	    macScrollPtr->macFlags |= ACTIVE;
	}
    }

    /*
     * Update the control values before we draw.
     */
    windowRef  = (**macScrollPtr->sbHandle).contrlOwner;    
    UpdateControlValues(macScrollPtr);
    
    if (macScrollPtr->macFlags & ACTIVE) {
	Draw1Control(macScrollPtr->sbHandle);
	if (macScrollPtr->macFlags & DRAW_GROW) {
	    DrawGrowIcon(windowRef);
	}
    } else {
	(**macScrollPtr->sbHandle).contrlHilite = 255;
	Draw1Control(macScrollPtr->sbHandle);
	if (macScrollPtr->macFlags & DRAW_GROW) {
	    DrawGrowIcon(windowRef);
	    Tk_Fill3DRectangle(tkwin, Tk_WindowId(tkwin), scrollPtr->bgBorder,
		Tk_Width(tkwin) - 13, Tk_Height(tkwin) - 13,
		Tk_Width(tkwin), Tk_Height(tkwin),
		0, TK_RELIEF_FLAT);
	}
    }
    
    SetGWorld(saveWorld, saveDevice);
     
    done:
    scrollPtr->flags &= ~REDRAW_PENDING;
}
Exemple #5
0
void
XDestroyWindow(
    Display *display,		/* Display. */
    Window window)		/* Window. */
{
    MacDrawable *macWin = (MacDrawable *) window;
    WindowRef winRef;

    /*
     * Remove any dangling pointers that may exist if the window we are
     * deleting is being tracked by the grab code.
     */

    TkPointerDeadWindow(macWin->winPtr);
    macWin->toplevel->referenceCount--;

    if (!Tk_IsTopLevel(macWin->winPtr)) {
	TkMacOSXInvalidateWindow(macWin, TK_PARENT_WINDOW);
	if (macWin->winPtr->parentPtr != NULL) {
	    TkMacOSXInvalClipRgns((Tk_Window) macWin->winPtr->parentPtr);
	}
	if (macWin->visRgn) {
	    CFRelease(macWin->visRgn);
	}
	if (macWin->aboveVisRgn) {
	    CFRelease(macWin->aboveVisRgn);
	}

	if (macWin->toplevel->referenceCount == 0) {
	    ckfree((char *) macWin->toplevel);
	}
	ckfree((char *) macWin);
	return;
    }

    /*
     * We are relying on the Activate Mac OS event to pass the focus away from
     * a window that is getting Destroyed to the Front non-floating window. BUT
     * we don't get activate events when a floating window is destroyed, since
     * the front non-floating window doesn't in fact get activated... So maybe
     * we can check here and if we are destroying a floating window, we can
     * pass the focus back to the front non-floating window...
     */

    if (macWin->grafPtr != NULL) {
	TkWindow *focusPtr = TkGetFocusWin(macWin->winPtr);

	if (focusPtr == NULL
		|| (focusPtr->mainPtr->winPtr == macWin->winPtr)) {
	    winRef = TkMacOSXDrawableWindow(window);
	    if (TkpIsWindowFloating (winRef)) {
		Window window = TkMacOSXGetXWindow(ActiveNonFloatingWindow());

		if (window != None) {
		    TkMacOSXGenerateFocusEvent(window, 1);
		}
	    }
	}
    }
    if (macWin->visRgn) {
	CFRelease(macWin->visRgn);
    }
    if (macWin->aboveVisRgn) {
	CFRelease(macWin->aboveVisRgn);
    }

    /*
     * Delete the Mac window and remove it from the windowTable. The window
     * could be NULL if the window was never mapped. However, we don't do this
     * for embedded windows, they don't go in the window list, and they do not
     * own their portPtr's.
     */

    if (!Tk_IsEmbedded(macWin->winPtr)) {
	WindowRef winRef = TkMacOSXDrawableWindow(window);

	if (winRef) {
	    TkMacOSXWindowList *listPtr, *prevPtr;
	    WindowGroupRef group;

	    if (GetWindowProperty(winRef, 'Tk  ', 'TsGp', sizeof(group), NULL,
		    &group) == noErr) {
		TkDisplay *dispPtr = TkGetDisplayList();
		ItemCount i = CountWindowGroupContents(group,
			kWindowGroupContentsReturnWindows);
		WindowRef macWin;
		WindowGroupRef newGroup;
		Window window;

		while (i > 0) {
		    ChkErr(GetIndexedWindow, group, i--, 0, &macWin);
		    if (!macWin) {
			continue;
		    }

		    window = TkMacOSXGetXWindow(macWin);
		    newGroup = NULL;
		    if (window != None) {
			TkWindow *winPtr = (TkWindow *)
				Tk_IdToWindow(dispPtr->display, window);

			if (winPtr && winPtr->wmInfoPtr) {
			    newGroup = GetWindowGroupOfClass(
				    winPtr->wmInfoPtr->macClass);
			}
		    }
		    if (!newGroup) {
			newGroup =
				GetWindowGroupOfClass(kDocumentWindowClass);
		    }
		    ChkErr(SetWindowGroup, macWin, newGroup);
		}
		ChkErr(SetWindowGroupOwner, group, NULL);
		ChkErr(ReleaseWindowGroup, group);
	    }
	    TkMacOSXUnregisterMacWindow(winRef);
	    DisposeWindow(winRef);

	    for (listPtr=tkMacOSXWindowListPtr, prevPtr=NULL;
		    tkMacOSXWindowListPtr != NULL;
		    prevPtr=listPtr, listPtr=listPtr->nextPtr) {
		if (listPtr->winPtr == macWin->winPtr) {
		    if (prevPtr == NULL) {
			tkMacOSXWindowListPtr = listPtr->nextPtr;
		    } else {
			prevPtr->nextPtr = listPtr->nextPtr;
		    }
		    ckfree((char *) listPtr);
		    break;
		}
	    }
	}
    }

    macWin->grafPtr = NULL;

    /*
     * Delay deletion of a toplevel data structure untill all children have
     * been deleted.
     */

    if (macWin->toplevel->referenceCount == 0) {
	ckfree((char *) macWin->toplevel);
    }
}
Exemple #6
0
MODULE_SCOPE int
TkMacOSXProcessMouseEvent(TkMacOSXEvent *eventPtr, MacEventStatus * statusPtr)
{
    Tk_Window tkwin;
    Point where, where2;
    int result;
    TkDisplay * dispPtr;
    OSStatus err;
    MouseEventData mouseEventData, * medPtr = &mouseEventData;
    int isFrontProcess;

    switch (eventPtr->eKind) {
	case kEventMouseDown:
	case kEventMouseUp:
	case kEventMouseMoved:
	case kEventMouseDragged:
	case kEventMouseWheelMoved:
	    break;
	default:
	    return false;
	    break;
    }
    err = ChkErr(GetEventParameter, eventPtr->eventRef,
	    kEventParamMouseLocation,
	    typeQDPoint, NULL,
	    sizeof(where), NULL,
	    &where);
    if (err != noErr) {
	GetGlobalMouse(&where);
    }
    err = ChkErr(GetEventParameter, eventPtr->eventRef,
	    kEventParamWindowRef,
	    typeWindowRef, NULL,
	    sizeof(WindowRef), NULL,
	    &medPtr->whichWin);
    if (err == noErr) {
	err = ChkErr(GetEventParameter, eventPtr->eventRef,
		kEventParamWindowPartCode,
		typeWindowPartCode, NULL,
		sizeof(WindowPartCode), NULL,
		&medPtr->windowPart);
    }
    if (err != noErr) {
	medPtr->windowPart = FindWindow(where, &medPtr->whichWin);
    }
    medPtr->window = TkMacOSXGetXWindow(medPtr->whichWin);
    if (medPtr->whichWin != NULL && medPtr->window == None) {
	return false;
    }
    if (eventPtr->eKind == kEventMouseDown) {
	if (IsWindowActive(medPtr->whichWin) && IsWindowPathSelectEvent(
		medPtr->whichWin, eventPtr->eventRef)) {
	    ChkErr(WindowPathSelect, medPtr->whichWin, NULL, NULL);
	    return false;
	}
	if (medPtr->windowPart == inProxyIcon) {
	    TkMacOSXTrackingLoop(1);
	    err = ChkErr(TrackWindowProxyDrag, medPtr->whichWin, where);
	    TkMacOSXTrackingLoop(0);
	    if (err == errUserWantsToDragWindow) {
		medPtr->windowPart = inDrag;
	    } else {
		return false;
	    }
	}
    }
    isFrontProcess = Tk_MacOSXIsAppInFront();
    if (isFrontProcess) {
	medPtr->state = ButtonModifiers2State(GetCurrentEventButtonState(),
		GetCurrentEventKeyModifiers());
    } else {
	medPtr->state = ButtonModifiers2State(GetCurrentButtonState(),
		GetCurrentKeyModifiers());
    }
    medPtr->global = where;
    err = ChkErr(GetEventParameter, eventPtr->eventRef,
	    kEventParamWindowMouseLocation,
	    typeQDPoint, NULL,
	    sizeof(Point), NULL,
	    &medPtr->local);
    if (err == noErr) {
	if (medPtr->whichWin) {
	    Rect widths;
	    GetWindowStructureWidths(medPtr->whichWin, &widths);
	    medPtr->local.h -=	widths.left;
	    medPtr->local.v -=	widths.top;
	}
    } else {
	medPtr->local = where;
	if (medPtr->whichWin) {
	    QDGlobalToLocalPoint(GetWindowPort(medPtr->whichWin),
		    &medPtr->local);
	}
    }
    medPtr->activeNonFloating = ActiveNonFloatingWindow();
    dispPtr = TkGetDisplayList();
    tkwin = Tk_IdToWindow(dispPtr->display, medPtr->window);

    if (eventPtr->eKind != kEventMouseDown) {
	int res = false;

	switch (eventPtr->eKind) {
	    case kEventMouseUp:
		/*
		 * The window manager only needs to know about mouse down
		 * events and sometimes we need to "eat" the mouse up.
		 * Otherwise, we just pass the event to Tk.
		 */
		if (TkMacOSXGetEatButtonUp()) {
		    TkMacOSXSetEatButtonUp(false);
		} else {
		    res = GenerateButtonEvent(medPtr);
		}
		break;
	    case kEventMouseWheelMoved:
		err = ChkErr(GetEventParameter, eventPtr->eventRef,
			kEventParamMouseWheelDelta, typeLongInteger, NULL,
			sizeof(long), NULL, &medPtr->delta);
		if (err != noErr ) {
		    statusPtr->err = 1;
		} else {
		    EventMouseWheelAxis axis;
		    err = ChkErr(GetEventParameter, eventPtr->eventRef,
			    kEventParamMouseWheelAxis, typeMouseWheelAxis,
			    NULL, sizeof(EventMouseWheelAxis), NULL, &axis);
		    if (err == noErr && axis == kEventMouseWheelAxisX) {
			 medPtr->state |= ShiftMask;
		    }
		    res = GenerateMouseWheelEvent(medPtr);
		}
		break;
	    case kEventMouseMoved:
	    case kEventMouseDragged:
		res = GeneratePollingEvents(medPtr);
		break;
	    default:
		Tcl_Panic("Unknown mouse event !");
	}
	if (res) {
		statusPtr->stopProcessing = 1;
	}
	return res;
    }
    TkMacOSXSetEatButtonUp(false);
    if (medPtr->whichWin) {
	/*
	 * We got a mouse down in a window
	 * See if this is the activate click
	 * This click moves the window forward. We don't want
	 * the corresponding mouse-up to be reported to the application
	 * or else it will mess up some Tk scripts.
	 */

	if (!(TkpIsWindowFloating(medPtr->whichWin))
		&& (medPtr->whichWin != medPtr->activeNonFloating
		|| !isFrontProcess)) {
	    int frontWindowOnly = 1;
	    int cmdDragGrow = ((medPtr->windowPart == inDrag ||
		    medPtr->windowPart == inGrow) && medPtr->state & Mod1Mask);

	    if (!cmdDragGrow) {
		Tk_Window grabWin = GetGrabWindowForWindow(tkwin);

		frontWindowOnly = !grabWin;
		if (grabWin && grabWin != tkwin) {
		    TkMacOSXSetEatButtonUp(true);
		    BringWindowForward(TkMacOSXDrawableWindow(
			    ((TkWindow*)grabWin)->window), isFrontProcess,
			    frontWindowOnly);
		    return false;
		}
	    }

	    /*
	     * Clicks in the titlebar widgets are handled without bringing the
	     * window forward.
	     */
	    if ((result = HandleWindowTitlebarMouseDown(medPtr, tkwin)) != -1) {
		statusPtr->stopProcessing = 1;
		return result;
	    } else {
		/*
		 * Only windows with the kWindowNoActivatesAttribute can
		 * receive mouse events in the background.
		 */
		if (!(((TkWindow *)tkwin)->wmInfoPtr->attributes &
			kWindowNoActivatesAttribute)) {
		    /*
		     * Allow background window dragging & growing with Command
		     * down.
		     */
		    if (!cmdDragGrow) {
			TkMacOSXSetEatButtonUp(true);
			BringWindowForward(medPtr->whichWin, isFrontProcess,
				frontWindowOnly);
		    }
		    /*
		     * Allow dragging & growing of windows that were/are in the
		     * background.
		     */
		    if (!(medPtr->windowPart == inDrag ||
			    medPtr->windowPart == inGrow)) {
			return false;
		    }
		}
	    }
	} else {
	    if ((result = HandleWindowTitlebarMouseDown(medPtr, tkwin)) != -1) {
		statusPtr->stopProcessing = 1;
		return result;
	    }
	}
	switch (medPtr->windowPart) {
	    case inDrag: {
		WindowAttributes attributes;

		GetWindowAttributes(medPtr->whichWin, &attributes);
		if (!(attributes & kWindowAsyncDragAttribute)) {
		    TkMacOSXTrackingLoop(1);
		    DragWindow(medPtr->whichWin, where, NULL);
		    TkMacOSXTrackingLoop(0);
		    where2.h = where2.v = 0;
		    QDLocalToGlobalPoint(GetWindowPort(medPtr->whichWin),
			    &where2);
		    if (EqualPt(where, where2)) {
			return false;
		    }
		    return true;
		}
		break;
	    }
	    case inGrow:
		/*
		 * Generally the content region is the domain of Tk
		 * sub-windows. However, one exception is the grow
		 * region. A button down in this area will be handled
		 * by the window manager. Note: this means that Tk
		 * may not get button down events in this area!
		 */
		if (TkMacOSXGrowToplevel(medPtr->whichWin, where) == true) {
		    statusPtr->stopProcessing = 1;
		    return true;
		} else {
		    return GenerateButtonEvent(medPtr);
		}
		break;
	    case inContent:
		return GenerateButtonEvent(medPtr);
		break;
	    default:
		return false;
		break;
	}
    }
    return false;
}
Exemple #7
0
void
TkpDisplayScrollbar(
    ClientData clientData)        /* Information about window. */
{
    TkScrollbar *scrollPtr = (TkScrollbar *) clientData;
    MacScrollbar *macScrollPtr = (MacScrollbar *) clientData;
    Tk_Window tkwin = scrollPtr->tkwin;
    
    MacDrawable *macDraw;
    CGrafPtr saveWorld;
    GDHandle saveDevice;
    GWorldPtr destPort;
    WindowRef windowRef;
    
    if ((scrollPtr->tkwin == NULL) || !Tk_IsMapped(tkwin)) {
        goto done;
    }

    /*
     * Draw the focus or any 3D relief we may have.
     */
    if (scrollPtr->highlightWidth != 0) {
        GC fgGC, bgGC;

        bgGC = Tk_GCForColor(scrollPtr->highlightBgColorPtr,
            Tk_WindowId(tkwin));

        if (scrollPtr->flags & GOT_FOCUS) {
            fgGC = Tk_GCForColor(scrollPtr->highlightColorPtr,
                Tk_WindowId(tkwin));
            TkpDrawHighlightBorder(tkwin, fgGC, bgGC, scrollPtr->highlightWidth,
                Tk_WindowId(tkwin));
        } else {
            TkpDrawHighlightBorder(tkwin, bgGC, bgGC, scrollPtr->highlightWidth,
                Tk_WindowId(tkwin));
        }
    }
    Tk_Draw3DRectangle(tkwin, Tk_WindowId(tkwin), scrollPtr->bgBorder,
        scrollPtr->highlightWidth, scrollPtr->highlightWidth,
        Tk_Width(tkwin) - 2*scrollPtr->highlightWidth,
        Tk_Height(tkwin) - 2*scrollPtr->highlightWidth,
        scrollPtr->borderWidth, scrollPtr->relief);

    /*
     * Set up port for drawing Macintosh control.
     */
    macDraw = (MacDrawable *) Tk_WindowId(tkwin);
    destPort = TkMacOSXGetDrawablePort(Tk_WindowId(tkwin));
    GetGWorld(&saveWorld, &saveDevice);
    SetGWorld(destPort, NULL);
    TkMacOSXSetUpClippingRgn(Tk_WindowId(tkwin));

    if (macScrollPtr->sbHandle == NULL) {
        Rect r;
        SInt16 initialValue;
        SInt16 minValue;
        SInt16 maxValue;
        SInt16 procID;
        WindowRef frontNonFloating;
        
        r.left = r.top = 0;
        r.right = r.bottom = 1;

        minValue = MIN_SCROLLBAR_VALUE;
        maxValue = MAX_SCROLLBAR_VALUE;
        initialValue = (minValue + maxValue)/2;
        procID = kControlScrollBarLiveProc;

        windowRef = GetWindowFromPort(destPort);
        CreateScrollBarControl(windowRef, &r, initialValue,
                                minValue, maxValue,
                                maxValue - minValue, true,
                                NULL, &(macScrollPtr->sbHandle));
        SetControlReference(macScrollPtr->sbHandle, (SInt32) scrollPtr);
        
        /*
         * If we are foremost then make us active.
         */
        
        frontNonFloating = FrontNonFloatingWindow();
        
        if ((windowRef == FrontWindow()) || TkpIsWindowFloating(windowRef)) {
            macScrollPtr->macFlags |= ACTIVE;
        }
    }

    /*
     * Adjust the control size based on its width...
     */

    if (macScrollPtr->info.width < 13) {
        SetControlData(macScrollPtr->sbHandle, kControlNoPart, kControlSizeTag,
                sizeof(kControlSizeSmall), (void *) kControlSizeSmall);
    } else {
        SetControlData(macScrollPtr->sbHandle, kControlNoPart, kControlSizeTag,
                sizeof(kControlSizeSmall), (void *) kControlSizeLarge);
    }        
    
    /*
     * Update the control values before we draw.
     */
    windowRef  = GetControlOwner (macScrollPtr->sbHandle);
    UpdateControlValues(macScrollPtr);
    
    if (macScrollPtr->macFlags & ACTIVE) {
        Draw1Control(macScrollPtr->sbHandle);
        if (macScrollPtr->macFlags & DRAW_GROW) {
            DrawGrowIcon(windowRef);
        }
    } else {
        HiliteControl (macScrollPtr->sbHandle, 255 );
        Draw1Control(macScrollPtr->sbHandle);
        if (macScrollPtr->macFlags & DRAW_GROW) {
            DrawGrowIcon(windowRef);
            Tk_Fill3DRectangle(tkwin, Tk_WindowId(tkwin), scrollPtr->bgBorder,
                Tk_Width(tkwin) - 13, Tk_Height(tkwin) - 13,
                Tk_Width(tkwin), Tk_Height(tkwin),
                0, TK_RELIEF_FLAT);
        }
    }
    
    SetGWorld(saveWorld, saveDevice);
     
    done:
    scrollPtr->flags &= ~REDRAW_PENDING;
}