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119 lines
4.5 KiB
119 lines
4.5 KiB
/**************************************************************************** |
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* graphics/nxbe/nxbe_setposition.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 <nuttx/nx/nxglib.h> |
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#include "nxbe.h" |
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#include "nxfe.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_setposition |
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* |
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* Descripton: |
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* This function checks for intersections and redraws the display after |
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* a change in the position of a window. |
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* |
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****************************************************************************/ |
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void nxbe_setposition(FAR struct nxbe_window_s *wnd, |
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FAR const struct nxgl_point_s *pos) |
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{ |
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struct nxgl_rect_s before; |
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struct nxgl_rect_s rect; |
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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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/* Back out the old window origin position from the bounding box */ |
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nxgl_rectoffset(&rect, &wnd->bounds, -wnd->bounds.pt1.x, -wnd->bounds.pt1.y); |
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/* Add the new window origin into the bounding box */ |
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nxgl_rectcopy(&before, &wnd->bounds); |
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nxgl_rectoffset(&wnd->bounds, &rect, pos->x, pos->y); |
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/* Get the union of the 'before' bounding box and the 'after' bounding |
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* this union is the region of the display that must be updated. |
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*/ |
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nxgl_rectunion(&rect, &before, &wnd->bounds); |
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nxgl_rectintersect(&rect, &rect, &wnd->be->bkgd.bounds); |
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/* Report the new size/position */ |
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nxfe_reportposition(wnd); |
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/* Then redraw this window AND all windows below it. Having moved the |
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* window, we may have exposed previoulsy obscured portions of windows |
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* below this one. |
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*/ |
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nxbe_redrawbelow(wnd->be, wnd, &rect); |
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}
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