da314276a1
Converserely, when the icon is clicked, the icon needs to be hidden on the backgound and the window needs to be restored in its current state (which may be different than the state of the window at the time it was iconified.
Squashed commit of the following:
graphics/: Add checks in all places that I can think to avoid doing something stupid with hidden windows
Improve some naming
Add a new file missing in last commit.
graphics/: Initial, incomplete support for hiding windows.
131 lines
4.4 KiB
C
131 lines
4.4 KiB
C
/****************************************************************************
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* graphics/nxbe/nxbe_isvisible.c
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*
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* Copyright (C) 2008-2009, 2011, 2019 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 <stdbool.h>
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#include <errno.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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#include "nxmu.h"
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/****************************************************************************
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* Private Types
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****************************************************************************/
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struct nxbe_setvisibility_s
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{
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struct nxbe_clipops_s cops;
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bool visible;
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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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* Name: nxbe_clipvisible
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****************************************************************************/
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static void nxbe_clipvisible(FAR struct nxbe_clipops_s *cops,
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FAR struct nxbe_plane_s *plane,
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FAR const struct nxgl_rect_s *rect)
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{
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FAR struct nxbe_setvisibility_s *info = (FAR struct nxbe_setvisibility_s *)cops;
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info->visible = true;
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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_isvisible
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*
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* Description:
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* Return true if the point, pt, in window wnd is visible. pt is in
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* absolute screen coordinates
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*
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****************************************************************************/
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bool nxbe_isvisible(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 nxbe_setvisibility_s info;
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/* Hidden windows are never visible */
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if (NXBE_ISHIDDEN(wnd))
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{
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return false;
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}
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/* Check if the absolute position lies within the window */
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if (!nxgl_rectinside(&wnd->bounds, pos))
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{
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return false;
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}
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/* If this is the top window, then the position is visible */
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if (!wnd->above)
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{
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return true;
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}
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/* The position within the window range, but the window is not at
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* the top. We will have to work harder to determine if the point
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* visible
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*/
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info.cops.visible = nxbe_clipvisible;
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info.cops.obscured = nxbe_clipnull;
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info.visible = false;
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nxbe_clipper(wnd->above, &wnd->bounds, NX_CLIPORDER_DEFAULT,
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&info.cops, &wnd->be->plane[0]);
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return info.visible;
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}
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