100 lines
3.6 KiB
C
100 lines
3.6 KiB
C
/****************************************************************************
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* graphics/nxmu/nxmu_requestbkgd.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 <assert.h>
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#include <errno.h>
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#include <debug.h>
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#include <nuttx/nx/nx.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: nxmu_requestbkgd
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*
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* Description:
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* Perform the server-side operation for the nx_requestbkgd operation:
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* Give the client control of the background window connection and receipt
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* of all background window callbacks.
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*
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* conn - The client containing connection information [IN]
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* be - The server state structure [IN]
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* cb - Callbacks used to process window events
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* arg - User provided argument (see nx_openwindow, nx_constructwindow)
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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void nxmu_requestbkgd(FAR struct nxmu_conn_s *conn,
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FAR struct nxbe_state_s *be,
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FAR const struct nx_callback_s *cb,
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FAR void *arg)
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{
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DEBUGASSERT(conn != NULL || be != NULL || cb != NULL);
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/* Set the client's callback vtable and and replace the server
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* connection with the clients connection.
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*/
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be->bkgd.cb = cb;
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be->bkgd.arg = arg;
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be->bkgd.conn = conn;
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/* Report the size/position of the background window to the client */
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nxmu_reportposition((NXWINDOW)&be->bkgd);
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/* Redraw the background window */
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nxmu_redraw(&be->bkgd, &be->bkgd.bounds);
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#ifdef CONFIG_NX_XYINPUT
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/* Provide the mouse settings */
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nxmu_mousereport(&be->bkgd);
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#endif
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}
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