100 lines
3.5 KiB
C
100 lines
3.5 KiB
C
/****************************************************************************
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* graphics/nxbe/nxbe_modal.c
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*
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* Copyright (C) 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 <assert.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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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nxbe_modal
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*
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* Description:
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* May be used to either (1) raise a window to the top of the display and
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* select modal behavior, or (2) disable modal behavior.
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*
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****************************************************************************/
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void nxbe_modal(FAR struct nxbe_window_s *wnd, bool enable)
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{
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FAR struct nxbe_state_s *be = wnd->be;
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/* Are we enabling or disabling the modal state? */
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if (enable)
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{
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/* We are enabling the modal state. Ignore the request if the back-end
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* is already in a modal state.
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*/
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if (!NXBE_STATE_ISMODAL(be))
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{
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/* Raise the window to the top of the display */
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void nxbe_raise(FAR struct nxbe_window_s *wnd);
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/* And enter the modal state */
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DEBUGASSERT(!NXBE_ISMODAL(wnd));
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NXBE_SETMODAL(wnd);
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NXBE_STATE_SETMODAL(be);
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}
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}
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/* We are disabling the modal state. Verify that we are in a modal state */
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else if (NXBE_STATE_ISMODAL(be) && NXBE_ISMODAL(wnd))
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{
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/* We are in a modal state and this window is the modal window.
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* Just disable the modal state.
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*/
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NXBE_CLRMODAL(wnd);
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NXBE_STATE_CLRMODAL(be);
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}
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}
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