Tk Source Code

    event.type = MapNotify;
    event.xmap.serial = LastKnownRequestProcessed(winPtr->display);
    event.xmap.send_event = False;
    event.xmap.display = winPtr->display;
    event.xmap.event = winPtr->window;
    event.xmap.window = winPtr->window;
    event.xmap.override_redirect = winPtr->atts.override_redirect;
    TkpHandleMapOrUnmap((Tk_Window)winPtr, &event);
}

/*
 *--------------------------------------------------------------
 *
 * Tk_MakeWindowExist --
 *

	event.type = UnmapNotify;
	event.xunmap.serial = LastKnownRequestProcessed(winPtr->display);
	event.xunmap.send_event = False;
	event.xunmap.display = winPtr->display;
	event.xunmap.event = winPtr->window;
	event.xunmap.window = winPtr->window;
	event.xunmap.from_configure = False;
	TkpHandleMapOrUnmap((Tk_Window)winPtr, &event);
    }
}

void
Tk_ConfigureWindow(
    Tk_Window tkwin,		/* Window to re-configure. */
    unsigned int valueMask,	/* Mask indicating which parts of *valuePtr

 */
static void SelectNearestTab(Notebook *nb)
{
    int currentIndex = nb->notebook.currentIndex;
    int nextIndex = NextTab(nb, currentIndex);

    if (currentIndex >= 0) {
        nb->notebook.currentIndex = -1;
	Ttk_UnmapContent(nb->notebook.mgr, currentIndex);
    }
    if (currentIndex != nextIndex) {
	TtkSendVirtualEvent(nb->core.tkwin, "NotebookTabChanged");
    }

    nb->notebook.currentIndex = nextIndex;

 * Used by xcolor.c
 */

MODULE_SCOPE unsigned long TkMacOSXRGBPixel(unsigned long red, unsigned long green,
					    unsigned long blue);
#define TkpGetPixel(p) (TkMacOSXRGBPixel(p->red >> 8, p->green >> 8, p->blue >> 8))

/*
 * Used by tkWindow.c
 */

MODULE_SCOPE void TkMacOSXHandleMapOrUnmap(Tk_Window tkwin, XEvent *event);

#define TkpHandleMapOrUnmap(tkwin, event)  TkMacOSXHandleMapOrUnmap(tkwin, event)

/*
 * Used by tkAppInit
 */

#define USE_CUSTOM_EXIT_PROC
EXTERN int TkpWantsExitProc(void);
EXTERN TCL_NORETURN void TkpExitProc(void *);

    Tk_ManageGeometry((Tk_Window)winPtr, &wmMgrType, NULL);
}

/*
 *----------------------------------------------------------------------
 *
 * TkMacOSXHandleMapOrUnmap --
 *
 *      The mechanism used by a geometry manager to propagate the information
 *      about which of its content widgets are mapped is to call Tk_MapWindow
 *      or Tk_UnmapWindow.  Those functions generate MapNotify or UnmapNotify
 *      events and then handle them immediately.  Other platforms use
 *      Tk_HandleEvent to do this.  But that does not work correctly on macOS
 *      due to the fact that the calls to Tk_MapNotify or Tk_UnmapNotify can
 *      occur in display procedures which are being run in the drawRect method
 *      of a TKContentView. The events will be processed after drawRect
 *      returns, but they need to be processed immediately in some cases.

 *      This function operates as a macOS alternative to Tk_HandleEvent, for
 *      processing MapNotify or UnmapNotify events only.  It is called by
 *      Tk_MapWindow, Tk_UnmapWindow, TkWmMapWindow and TkWmUnmapWindow.
 *      Rather than using Tk_HandleEvent it installs a filter which restricts
 *      to the MapNotify or UnmapNotify events, it queues the event and then
 *      processes window events with the filter installed.  This allows the
 *      event to be handled immediately even from within the drawRect method.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Handles a MapNotify or UnMapNotify event.
 *
 *----------------------------------------------------------------------
 */
static Tk_RestrictAction
MapUnmapRestrictProc(
    ClientData arg,
    XEvent *eventPtr)
{
    return (eventPtr->type==MapNotify || eventPtr->type==UnmapNotify ?
	    TK_PROCESS_EVENT : TK_DEFER_EVENT);
}

MODULE_SCOPE
void TkMacOSXHandleMapOrUnmap(
    Tk_Window tkwin,
    XEvent *event)
{
    ClientData oldArg;
    Tk_RestrictProc *oldProc;
    TkWindow *winPtr = (TkWindow *) tkwin;
    const Tk_GeomMgr *geomMgrPtr = winPtr->geomMgrPtr;

    /*
     * Sadly, this approach does not work with the "text" geometry manager.
     * The mysterious unexplained crash elicited by textDisp-5.2 occurs.  So we
     * have to check for the "text" manager and revert to using Tk_HandleEvent
     * in that case.  Hopefully this can be removed when the revised text
     * widget is in place.
     */

    if (geomMgrPtr && strcmp(geomMgrPtr->name, "text") == 0) {
	Tk_HandleEvent(event);
	return;
    }
    oldProc = Tk_RestrictEvents(MapUnmapRestrictProc, NULL, &oldArg);
    Tk_QueueWindowEvent(event, TCL_QUEUE_TAIL);
    while (Tcl_DoOneEvent(TCL_WINDOW_EVENTS|TCL_DONT_WAIT)) {}
    Tk_RestrictEvents(oldProc, oldArg, &oldArg);
}

/*
 *----------------------------------------------------------------------
 *
 * TkWmMapWindow --
 *
 *	This procedure is invoked to map a top-level window. This module gets
 *	a chance to update all window-manager-related information in
 *	properties before the window manager sees the map event and checks the
 *	properties. It also gets to decide whether or not to even map the
 *	window after all.

    event.xany.serial = LastKnownRequestProcessed(winPtr->display);
    event.xany.send_event = False;
    event.xany.display = winPtr->display;
    event.xmap.window = winPtr->window;
    event.xmap.type = MapNotify;
    event.xmap.event = winPtr->window;
    event.xmap.override_redirect = winPtr->atts.override_redirect;
    TkpHandleMapOrUnmap((Tk_Window)winPtr, &event);
}

/*
 *----------------------------------------------------------------------
 *
 * TkWmUnmapWindow --
 *

    event.xany.display = winPtr->display;
    event.xunmap.type = UnmapNotify;
    event.xunmap.window = winPtr->window;
    event.xunmap.event = winPtr->window;
    event.xunmap.from_configure = false;
    winPtr->flags &= ~TK_MAPPED;
    XUnmapWindow(winPtr->display, winPtr->window);
    TkpHandleMapOrUnmap((Tk_Window)winPtr, &event);
}

/*
 *----------------------------------------------------------------------
 *
 * TkWmDeadWindow --
 *

 */

#ifndef __CYGWIN__
#define TkpPrintWindowId(buf,w) \
	sprintf((buf), "0x%08lx", (unsigned long) (w))
#endif

/*
 * Used by tkWindow.c
 */

#define TkpHandleMapOrUnmap(tkwin, event)  Tk_HandleEvent(event)

#endif /* _UNIXPORT */

/*
 * The following Tk functions are implemented as macros under Windows.
 */

#define TkpGetPixel(p) (((((p)->red >> 8) & 0xff) \
	| ((p)->green & 0xff00) | (((p)->blue << 8) & 0xff0000)) | 0x20000000)

/*
 * Used by tkWindow.c
 */

#define TkpHandleMapOrUnmap(tkwin, event)  Tk_HandleEvent(event)

/*
 * These calls implement native bitmaps which are not currently
 * supported under Windows.  The macros eliminate the calls.
 */

#define TkpDefineNativeBitmaps()
#define TkpCreateNativeBitmap(display, source) None