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/****************************************************************************
* graphics/nxmu/nxfe.h
*
* Copyright (C) 2008-2013 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef __GRAPHICS_NXMU_NXFE_H
#define __GRAPHICS_NXMU_NXFE_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include <mqueue.h>
#include <semaphore.h>
#include <nuttx/nx/nx.h>
#include <nuttx/nx/nxmu.h>
#include "nxbe.h"
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/****************************************************************************
* Public Types
****************************************************************************/
/* Server state structure ***************************************************/
/* This the server 'front-end' state structure */
struct nxfe_state_s
{
/* The 'back-end' window status. Must be first so that instances of
* struct nxbe_state_s can be simply cast to an instance of struct
* nxfe_state_s
*/
struct nxbe_state_s be;
/* This is the server's connection to itself */
struct nxfe_conn_s conn;
};
/****************************************************************************
* Public Data
****************************************************************************/
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: nxmu_sendclient
*
* Description:
* Send a message to the client at NX_CLIMSG_PRIO priority
*
* Input Parameters:
* conn - A pointer to the server connection structure
* msg - A pointer to the message to send
* msglen - The length of the message in bytes.
*
* Return:
* OK on success; ERROR on failure with errno set appropriately
*
****************************************************************************/
int nxmu_sendclient(FAR struct nxfe_conn_s *conn,
FAR const void *msg, size_t msglen);
/****************************************************************************
* Name: nxmu_sendclientwindow
*
* Description:
* Send a message to the client at NX_CLIMSG_PRIO priority
*
* Input Parameters:
* wnd - A pointer to the back-end window structure
* msg - A pointer to the message to send
* msglen - The length of the message in bytes.
*
* Return:
* OK on success; ERROR on failure with errno set appropriately
*
****************************************************************************/
int nxmu_sendclientwindow(FAR struct nxbe_window_s *wnd, FAR const void *msg,
size_t msglen);
/****************************************************************************
* Name: nxmu_openwindow
*
* Description:
* Create a new window.
*
* Input Parameters:
* be - The back-end status structure
* wnd - The pre-allocated window structure to be initialized [IN/OUT]
*
* Return:
* None
*
****************************************************************************/
void nxmu_openwindow(FAR struct nxbe_state_s *be,
FAR struct nxbe_window_s *wnd);
/****************************************************************************
* Name: nxmu_requestbkgd
*
* Description:
* Perform the server-side operation for the nx_requestbkgd operation:
* Give the client control of the background window connection and receipt
* of all background window callbacks.
*
* conn - The client containing connection information [IN]
* be - The server state structure [IN]
* cb - Callbacks used to process window events
* arg - User provided argument (see nx_openwindow, nx_constructwindow)
*
* Return:
* None
*
****************************************************************************/
void nxmu_requestbkgd(FAR struct nxfe_conn_s *conn,
FAR struct nxbe_state_s *be,
FAR const struct nx_callback_s *cb,
FAR void *arg);
/****************************************************************************
* Name: nxmu_releasebkgd
*
* Description:
* Release the background window previously acquired using nxmu_openbgwindow
* and return control of the background to NX.
*
* Input Parameters:
* fe - The front-end state structure
*
* Return:
* None
*
****************************************************************************/
void nxmu_releasebkgd(FAR struct nxfe_state_s *fe);
/****************************************************************************
* Name: nxfe_reportposition
*
* Description:
* Report the new size/position of the window.
*
****************************************************************************/
void nxfe_reportposition(FAR struct nxbe_window_s *wnd);
/****************************************************************************
* Name: nxfe_redrawreq
*
* Description:
* Request the client that has this window to redraw the rectangular region.
*
****************************************************************************/
void nxfe_redrawreq(FAR struct nxbe_window_s *wnd,
FAR const struct nxgl_rect_s *rect);
/****************************************************************************
* Name: nxmu_mouseinit
*
* Description:
* Initialize with the mouse in the center of the display
*
****************************************************************************/
#ifdef CONFIG_NX_MOUSE
void nxmu_mouseinit(int x, int y);
#endif
/****************************************************************************
* Name: nxmu_mousereport
*
* Description:
* Report mouse position info to the specified window
*
* Input Parameters:
* wnd - The window to receive the mouse report
*
* Returned Value:
* 0: Mouse report sent; >0: Mouse report not sent; <0: An error occurred
*
****************************************************************************/
#ifdef CONFIG_NX_MOUSE
int nxmu_mousereport(struct nxbe_window_s *wnd);
#endif
/****************************************************************************
* Name: nxmu_mousein
*
* Description:
* New positional data has been received from the thread or interrupt
* handler that manages some kind of pointing hardware. Route that
* positional data to the appropriate window client.
*
****************************************************************************/
#ifdef CONFIG_NX_MOUSE
int nxmu_mousein(FAR struct nxfe_state_s *fe,
FAR const struct nxgl_point_s *pos, int button);
#endif
/****************************************************************************
* Name: nxmu_kbdin
*
* Description:
* New keyboard data has been received from the thread or interrupt
* handler that manages some kind of keyboard/keypad hardware. Route that
* positional data to the appropriate window client.
*
****************************************************************************/
#ifdef CONFIG_NX_KBD
void nxmu_kbdin(FAR struct nxfe_state_s *fe, uint8_t nch, FAR uint8_t *ch);
#endif
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __GRAPHICS_NXMU_NXFE_H */
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