forked from Archive/PX4-Autopilot
186 lines
6.6 KiB
C
186 lines
6.6 KiB
C
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/****************************************************************************
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* graphics/nxsu/nxfe.h
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*
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* Copyright (C) 2008-2010 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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#ifndef __GRAPHICS_NXSU_NXFE_H
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#define __GRAPHICS_NXSU_NXFE_H
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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 <mqueue.h>
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#include <semaphore.h>
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#include <nuttx/nx/nx.h>
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#include "nxbe.h"
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/****************************************************************************
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* Pre-Processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* Server state structure ***************************************************/
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/* This the server 'front-end' state structure. It is really the same
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* as the back-end state, but we wrap the back-end state so that we can add
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* things to the structure in the future
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*/
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struct nxfe_state_s
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{
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/* The 'back-end' window status. Must be first so that instances of
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* struct nxbe_state_s can be simply cast to an instance of struct
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* nxfe_state_s
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*/
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struct nxbe_state_s be;
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};
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C" {
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#else
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#define EXTERN extern
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#endif
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EXTERN const struct nx_callback_s g_bkgdcb;
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: nxfe_constructwindow
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*
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* Description:
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* This function is the same a nx_openwindow EXCEPT that the client provides
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* the window structure instance. nx_constructwindow will initialize the
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* the pre-allocated window structure for use by NX. This function is
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* provided in addition to nx_open window in order to support a kind of
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* inheritance: The caller's window structure may include extensions that
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* are not visible to NX.
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*
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* NOTE: wnd must have been allocated using malloc() (or related allocators)
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* Once provided to nxfe_constructwindow() that memory is owned and managed
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* by NX. On certain error conditions or when the window is closed, NX will
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* free() the window.
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*
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* Input Parameters:
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* handle - The handle returned by nx_connect
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* wnd - The pre-allocated window structure.
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* cb - Callbacks used to process window events
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* arg - User provided value that will be returned with NX callbacks.
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*
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* Return:
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* OK on success; ERROR on failure with errno set appropriately. In the
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* case of ERROR, NX will have dealloated the pre-allocated window.
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*
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****************************************************************************/
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EXTERN int nxfe_constructwindow(NXHANDLE handle,
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FAR struct nxbe_window_s *wnd,
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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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* Name: nxfe_redrawreq
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*
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* Descripton:
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* Request the client that has this window to redraw the rectangular region.
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*
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****************************************************************************/
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EXTERN void nxfe_redrawreq(FAR struct nxbe_window_s *wnd,
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FAR const struct nxgl_rect_s *rect);
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/****************************************************************************
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* Name: nxfe_reportposition
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*
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* Descripton:
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* Report the new size/position of the window.
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*
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****************************************************************************/
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EXTERN void nxfe_reportposition(FAR struct nxbe_window_s *wnd);
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/****************************************************************************
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* Name: nxmu_mouseinit
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*
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* Description:
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* Initialize with the mouse in the center of the display
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*
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****************************************************************************/
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#ifdef CONFIG_NX_MOUSE
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EXTERN void nxsu_mouseinit(int x, int y);
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#endif
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/****************************************************************************
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* Name: nxmu_mousereport
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*
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* Description:
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* Report mouse position info to the specified window
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*
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* Input Parameters:
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* wnd - The window to receive the mouse report
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*
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* Returned Value:
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* 0: Mouse report sent; >0: Mouse report not sent; <0: An error occurred
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*
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****************************************************************************/
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#ifdef CONFIG_NX_MOUSE
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EXTERN int nxsu_mousereport(struct nxbe_window_s *wnd);
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#endif
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __GRAPHICS_NXSU_NXFE_H */
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