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125 lines
4.4 KiB
125 lines
4.4 KiB
/**************************************************************************** |
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* graphics/nxbe/nxbe_lower.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 <gnutt@nuttx.org> |
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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 <stddef.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_lower |
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* |
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* Description: |
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* Lower the specified window to the bottom of the display. |
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* |
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****************************************************************************/ |
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void nxbe_lower(FAR struct nxbe_window_s *wnd) |
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{ |
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FAR struct nxbe_state_s *be = wnd->be; |
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FAR struct nxbe_window_s *below; |
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/* If the window is already at the bottom, then there is nothing to do */ |
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if (!wnd->below || wnd->below == &be->bkgd) |
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{ |
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return; |
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} |
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/* Remove the window from its current position in the list */ |
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wnd->below->above = wnd->above; |
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/* Was it at the top of the display? */ |
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if (wnd->above) |
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{ |
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/* No... it was in the middle somewhere */ |
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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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/* Yes.. set the new top window */ |
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be->topwnd = wnd->below; |
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be->topwnd->above = NULL; |
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} |
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/* Remember the window that was just below us */ |
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below = wnd->below; |
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/* Then put the lowered window at the bottom (just above the background window) */ |
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wnd->below = &be->bkgd; |
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wnd->above = be->bkgd.above; |
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be->bkgd.above = wnd; |
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/* Redraw the windows that were below us (but now are above) */ |
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nxbe_redrawbelow(be, below, &wnd->bounds); |
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}
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