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fix a stackoverflow error

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This commit is contained in:
Jinhao 2018-01-03 07:32:21 +08:00
parent 5653bd2416
commit 58b7bdf2f7
1 changed files with 8 additions and 1 deletions
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9
source/gui/detail/window_layout.cpp
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@ -1,7 +1,7 @@
/*
* Window Layout Implementation
* Nana C++ Library(http://www.nanapro.org)
* Copyright(C) 2003-2017 Jinhao(cnjinhao@hotmail.com)
* Copyright(C) 2003-2018 Jinhao(cnjinhao@hotmail.com)
*
* Distributed under the Boost Software License, Version 1.0.
* (See accompanying file LICENSE_1_0.txt or copy at
@ -386,6 +386,13 @@ namespace nana
nana::rectangle r_of_sigwd(sigwd->pos_root, sigwd->dimension);
for (auto wd : data_sect.effects_bground_windows)
{
//Don't notify the window if both native root windows are not same(e.g. wd and sigwd have
//a some parent). Otherwise, _m_paint_glass_window() recursively paints sigwd to make stack overflow.
//On the other hand, a nested root window is always floating on its parent's child widgets, it's unnecessary to
//notify the wd if they haven't a same native root window.
if (sigwd->root != wd->root)
continue;
if (wd == sigwd || !wd->displayed() ||
(false == overlapped(nana::rectangle{ wd->pos_root, wd->dimension }, r_of_sigwd)))
continue;