129 lines
3.4 KiB
C++
129 lines
3.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#include "nsXUtils.h"
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#include <unistd.h>
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#include <string.h>
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#if defined(__osf__) && !defined(_XOPEN_SOURCE_EXTENDED)
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/*
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** DEC's compiler requires _XOPEN_SOURCE_EXTENDED to be defined in
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** order for it to see the prototype for usleep in unistd.h, but if
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** we define that the build breaks long before getting here. So
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** put the prototype here explicitly.
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*/
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int usleep(useconds_t);
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#endif
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//////////////////////////////////////////////////////////////////
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/* static */ void
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nsXUtils::XFlashWindow(Display * aDisplay,
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Window aWindow,
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unsigned int aTimes,
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unsigned long aInterval,
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XRectangle * aArea)
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{
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Window root_window = 0;
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Window child_window = 0;
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GC gc;
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int x;
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int y;
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unsigned int width;
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unsigned int height;
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unsigned int border_width;
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unsigned int depth;
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int root_x;
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int root_y;
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unsigned int i;
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XGCValues gcv;
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XGetGeometry(aDisplay,
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aWindow,
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&root_window,
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&x,
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&y,
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&width,
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&height,
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&border_width,
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&depth);
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XTranslateCoordinates(aDisplay,
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aWindow,
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root_window,
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0,
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0,
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&root_x,
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&root_y,
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&child_window);
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memset(&gcv, 0, sizeof(XGCValues));
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gcv.function = GXxor;
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gcv.foreground = WhitePixel(aDisplay, DefaultScreen(aDisplay));
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gcv.subwindow_mode = IncludeInferiors;
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if (gcv.foreground == 0)
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gcv.foreground = 1;
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gc = XCreateGC(aDisplay,
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root_window,
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GCFunction | GCForeground | GCSubwindowMode,
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&gcv);
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XGrabServer(aDisplay);
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// If an area is given, use that. Notice how out of whack coordinates
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// and dimentsions are not checked!!!
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if (aArea)
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{
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root_x += aArea->x;
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root_y += aArea->y;
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width = aArea->width;
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height = aArea->height;
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}
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// Need to do this twice so that the XOR effect can replace
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// the original window contents.
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for (i = 0; i < aTimes * 2; i++)
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{
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XFillRectangle(aDisplay,
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root_window,
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gc,
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root_x,
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root_y,
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width,
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height);
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XSync(aDisplay, False);
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usleep(aInterval);
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}
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XFreeGC(aDisplay, gc);
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XUngrabServer(aDisplay);
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}
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/*****************************************************************/
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