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137 lines
4.6 KiB
137 lines
4.6 KiB
/**************************************************************************** |
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* graphics/nxbe/nxbe_closewindow.c |
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* |
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* Copyright (C) 2008-2009, 2011 Gregory Nutt. All rights reserved. |
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr> |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* 3. Neither the name NuttX nor the names of its contributors may be |
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* used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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* |
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****************************************************************************/ |
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/**************************************************************************** |
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* Included Files |
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****************************************************************************/ |
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#include <nuttx/config.h> |
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#include <stdlib.h> |
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#include <assert.h> |
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#include <debug.h> |
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#include <nuttx/nx/nxglib.h> |
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#include "nxbe.h" |
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/**************************************************************************** |
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* Pre-Processor Definitions |
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****************************************************************************/ |
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/**************************************************************************** |
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* Private Types |
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****************************************************************************/ |
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/**************************************************************************** |
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* Private Data |
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****************************************************************************/ |
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/**************************************************************************** |
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* Public Data |
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****************************************************************************/ |
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/**************************************************************************** |
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* Private Functions |
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****************************************************************************/ |
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/**************************************************************************** |
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* Public Functions |
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****************************************************************************/ |
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/**************************************************************************** |
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* Name: nxbe_closewindow |
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* |
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* Description: |
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* Close an existing window |
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* |
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* Input Parameters: |
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* wnd - The window to be closed (and deallocated) |
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* |
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* Return: |
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* None |
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* |
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****************************************************************************/ |
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void nxbe_closewindow(struct nxbe_window_s *wnd) |
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{ |
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FAR struct nxbe_state_s *be; |
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#ifdef CONFIG_DEBUG |
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if (!wnd) |
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{ |
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return; |
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} |
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#endif |
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be = wnd->be; |
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/* The background window should never be closed */ |
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DEBUGASSERT(wnd != &be->bkgd); |
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/* Is there a window above the one being closed? */ |
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if (wnd->above) |
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{ |
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/* Yes, now the window below that one is the window below |
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* the one being closed. |
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*/ |
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wnd->above->below = wnd->below; |
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} |
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else |
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{ |
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/* No, then the top window is the one below this (which |
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* can never be NULL because the background window is |
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* always at the true bottom of the list |
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*/ |
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be->topwnd = wnd->below; |
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} |
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/* There is always a window below the one being closed (because |
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* the background is never closed. Now, the window above that |
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* is the window above the one that is being closed. |
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*/ |
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wnd->below->above = wnd->above; |
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/* Redraw the windows that were below us (and may now be exposed) */ |
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nxbe_redrawbelow(be, wnd->below, &wnd->bounds); |
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/* Then discard the window structure */ |
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free(wnd); |
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}
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