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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2008-11-27 22:56:45 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2008-11-27 22:56:45 +0000 |
commit | b8258ae88c5c4137caf7a6569f0fc0a1d6752fb6 (patch) | |
tree | 58823aca8e1caf60e78a92969a4ded882946f6eb /nuttx/graphics/nxbe/nxbe_setposition.c | |
parent | 2b36cf62d4339bea7c21a2164ab2db2c36abefc3 (diff) | |
download | px4-nuttx-b8258ae88c5c4137caf7a6569f0fc0a1d6752fb6.tar.gz px4-nuttx-b8258ae88c5c4137caf7a6569f0fc0a1d6752fb6.tar.bz2 px4-nuttx-b8258ae88c5c4137caf7a6569f0fc0a1d6752fb6.zip |
Graphics backend
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1320 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/graphics/nxbe/nxbe_setposition.c')
-rw-r--r-- | nuttx/graphics/nxbe/nxbe_setposition.c | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/nuttx/graphics/nxbe/nxbe_setposition.c b/nuttx/graphics/nxbe/nxbe_setposition.c new file mode 100644 index 000000000..13e100eda --- /dev/null +++ b/nuttx/graphics/nxbe/nxbe_setposition.c @@ -0,0 +1,124 @@ +/**************************************************************************** + * graphics/nxbe/nxbe_setposition.c + * + * Copyright (C) 2008 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> +#include <sys/types.h> + +#include <nuttx/nx.h> + +#include "nxbe.h" +#include "nxfe.h" + +/**************************************************************************** + * Pre-Processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: nxbe_setposition + * + * Descripton: + * This function checks for intersections and redraws the display after + * a change in the position of a window. + * + ****************************************************************************/ + +void nxbe_setposition(FAR struct nxbe_window_s *wnd, + FAR const struct nxgl_point_s *pos) +{ + struct nxgl_rect_s rect; + +#ifdef CONFIG_DEBUG + if (!wnd) + { + return; + } +#endif + + /* Back out the old window origin position from the bounding box */ + + nxgl_rectoffset(&rect, &wnd->bounds, -wnd->origin.x, -wnd->origin.y); + + /* Set the new origin */ + + wnd->origin.x = pos->x; + wnd->origin.y = pos->y; + + /* Add the new window origin back into the bounding box */ + + nxgl_rectoffset(&wnd->bounds, &rect, wnd->origin.x, wnd->origin.y); + + /* Clip the rectangle so that is lies with the screen defined by the + * background window. + */ + + nxgl_rectintersect(&rect, &rect, &wnd->be->bkgd.bounds); + + /* Then redraw this window AND all windows below it. Having moved the + * window, we may have exposed previoulsy obscured portions of windows + * below this one. + */ + + nxbe_redrawbelow(wnd->be, wnd, &rect); + + /* Report the new size/position */ + +#ifdef CONFIG_NX_MULTIUSER + nxmu_getposition(wnd); +#endif +} |