c13aa8eb4d
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1392 42af7a65-404d-4744-a932-0658087f49c3
626 lines
22 KiB
C
626 lines
22 KiB
C
/****************************************************************************
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* graphics/nxmu/nxfe.h
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*
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* Copyright (C) 2008 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_NXMU_NXFE_H
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#define __GRAPHICS_NXMU_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 <sys/types.h>
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#include <mqueue.h>
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#include <semaphore.h>
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#include <nuttx/fb.h>
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#include <nuttx/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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/* Configuration ************************************************************/
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#ifdef CONFIG_DISABLE_MQUEUE
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# error "Message queues are disabled(CONFIG_DISABLE_MQUEUE)"
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#endif
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#ifndef CONFIG_NX_MXSERVERMSGS
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# define CONFIG_NX_MXSERVERMSGS 32 /* Number of pending messages in server MQ */
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#endif
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#ifndef CONFIG_NX_MXCLIENTMSGS
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# define CONFIG_NX_MXCLIENTMSGS 16 /* Number of pending messages in each client MQ */
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#endif
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/* Used to create unique client MQ name */
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#define NX_CLIENT_MQNAMEFMT "/dev/nxc%d"
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#define NX_CLIENT_MXNAMELEN (16)
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#define NX_MXSVRMSGLEN (64) /* Maximum size of a client->server command */
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#define NX_MXEVENTLEN (64) /* Maximum size of an event */
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#define NX_MXCLIMSGLEN (64) /* Maximum size of a server->client message */
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/* Handy macros */
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#define nxmu_semgive(sem) sem_post(sem) /* To match nxmu_semtake() */
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* Client/Connection structures *********************************************/
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/* Client state */
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enum nx_clistate_e
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{
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NX_CLISTATE_NOTCONNECTED = 0, /* Waiting for server to acknowledge connection */
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NX_CLISTATE_CONNECTED, /* Connection established (normal state) */
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NX_CLISTATE_DISCONNECT_PENDING, /* Waiting for server to acknowledge disconnect */
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};
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/* This structure represents a connection between the client and the server */
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struct nxfe_conn_s
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{
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/* This number uniquely identifies the client */
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int cid; /* Client ID (CID) */
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ubyte state; /* See enum nx_clistate_e */
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/* These are only usable on the client side of the connection */
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mqd_t crdmq; /* MQ to read from the server (may be non-blocking) */
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mqd_t cwrmq; /* MQ to write to the server (blocking) */
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/* These are only usable on the server side of the connection */
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mqd_t swrmq; /* MQ to write to the client */
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};
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/* Server state structure ***************************************************/
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/* This the the server 'front-end' state structure */
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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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/* This is the server's connection to iself */
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struct nxfe_conn_s conn;
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};
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/* Message IDs **************************************************************/
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enum nxmsg_e
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{
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/* Server-to-Client Messages **********************************************/
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NX_CLIMSG_CONNECTED = 1, /* The server has completed the connection and is ready */
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NX_CLIMSG_DISCONNECTED, /* The server has disconnected */
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NX_CLIMSG_REDRAW, /* Re-draw the specified window */
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NX_CLIMSG_NEWPOSITION, /* New window size/position */
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NX_CLIMSG_MOUSEIN, /* New mouse positional data available for window */
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NX_CLIMSG_KBDIN, /* New keypad input available for window */
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/* Client-to-Server Messages **********************************************/
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NX_SVRMSG_CONNECT, /* Establish connection with new NX server client */
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NX_SVRMSG_DISCONNECT, /* Tear down connection with terminating client */
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NX_SVRMSG_OPENWINDOW, /* Create a new window */
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NX_SVRMSG_CLOSEWINDOW, /* Close an existing window */
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NX_SVRMSG_REQUESTBKGD, /* Open the background window */
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NX_SVRMSG_RELEASEBKGD, /* Release the background window */
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NX_SVRMSG_SETPOSITION, /* Window position has changed */
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NX_SVRMSG_SETSIZE, /* Window size has changed */
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NX_SVRMSG_GETPOSITION, /* Get the current window position and size */
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NX_SVRMSG_RAISE, /* Move the window to the top */
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NX_SVRMSG_LOWER, /* Move the window to the bottom */
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NX_SVRMSG_FILL, /* Fill a rectangle in the window with a color */
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NX_SVRMSG_FILLTRAP, /* Fill a trapezoidal region in the window with a color */
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NX_SVRMSG_MOVE, /* Move a rectangular region within the window */
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NX_SVRMSG_BITMAP, /* Copy a rectangular bitmap into the window */
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NX_SVRMSG_SETBGCOLOR, /* Set the color of the background */
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NX_SVRMSG_MOUSEIN, /* New mouse report from mouse client */
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NX_SVRMSG_KBDIN, /* New keyboard report from keyboard client */
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};
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/* Message priorities -- they must all be at the same priority to assure
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* FIFO execution.
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*/
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#define NX_CLIMSG_PRIO 42
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#define NX_SVRMSG_PRIO 42
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/* Server-to-Client Message Structures **************************************/
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/* The generic message structure. All messages begin with this form. */
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struct nxclimsg_s
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{
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uint32 msgid; /* Any of nxclimsg_e */
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};
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/* The server is now connected */
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struct nxclimsg_connected_s
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{
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uint32 msgid; /* NX_CLIMSG_REDRAW_CONNECTED */
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};
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/* The server is now disconnected */
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struct nxclimsg_disconnected_s
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{
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uint32 msgid; /* NX_CLIMSG_REDRAW_DISCONNECTED */
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};
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/* This message is received when a requested window has been opened. If wnd is NULL
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* then errorcode is the errno value that provides the explanation of the error.
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*/
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struct nxclimsg_redraw_s
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{
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uint32 msgid; /* NX_CLIMSG_REDRAW */
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FAR struct nxbe_window_s *wnd; /* The handle to the window to redraw in */
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FAR struct nxgl_rect_s rect; /* The rectangle to be redrawn */
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boolean more; /* TRUE: more redraw messages follow */
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};
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/* This message informs the client of the new size or position of the window */
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struct nxclimsg_newposition_s
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{
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uint32 msgid; /* NX_CLIMSG_NEWPOSITION */
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FAR struct nxbe_window_s *wnd; /* The window whose position/size has changed */
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FAR struct nxgl_size_s size; /* The current window size */
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FAR struct nxgl_point_s pos; /* The current window position */
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FAR struct nxgl_rect_s bounds; /* Size of screen */
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};
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/* This message reports a new mouse event to a particular window */
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#ifdef CONFIG_NX_MOUSE
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struct nxclimsg_mousein_s
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{
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uint32 msgid; /* NX_SVRMSG_MOUSEIN */
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FAR struct nxbe_window_s *wnd; /* The handle of window receiving mouse input */
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struct nxgl_point_s pos; /* Mouse X/Y position */
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ubyte buttons; /* Mouse button set */
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};
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#endif
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/* This message reports a new keypad event to a particular window */
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#ifdef CONFIG_NX_KBD
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struct nxclimsg_key
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{
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uint32 msgid; /* NX_CLIMSG_KBDIN */
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FAR struct nxbe_window_s *wnd; /* The handle of window receiving keypad input */
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ubyte nch /* Number of characters received */
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ubyte ch[1]; /* Array of received characters */
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};
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#endif
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/* Client-to-Server Message Structures **************************************/
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/* The generic message structure. All server messages begin with this form. Also
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* messages that have no additional data fields use this structure. This includes:
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* NX_SVRMSG_CONNECT and NX_SVRMSG_DISCONNECT.
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*/
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struct nxsvrmsg_s /* Generic server message */
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{
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uint32 msgid; /* One of enum nxsvrmsg_e */
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FAR struct nxfe_conn_s *conn; /* The specific connection sending the message */
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};
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/* This message requests the server to create a new window */
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struct nxsvrmsg_openwindow_s
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{
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uint32 msgid; /* NX_SVRMSG_OPENWINDOW */
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FAR struct nxbe_window_s *wnd; /* The pre-allocated window structure */
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};
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/* This message informs the server that client wishes to close a window */
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struct nxsvrmsg_closewindow_s
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{
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uint32 msgid; /* NX_SVRMSG_CLOSEWINDOW */
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FAR struct nxbe_window_s *wnd; /* The window to be closed */
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};
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/* This message requests the server to create a new window */
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struct nxsvrmsg_requestbkgd_s
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{
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uint32 msgid; /* NX_SVRMSG_REQUESTBKGD */
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FAR struct nxfe_conn_s *conn; /* The specific connection sending the message */
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FAR const struct nx_callback_s *cb; /* Event handling callbacks */
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FAR void *arg; /* Client argument used with callbacks */
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};
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/* This message informs the server that client wishes to close a window */
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struct nxsvrmsg_releasebkgd_s
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{
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uint32 msgid; /* NX_SVRMSG_RELEASEBKGD */
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};
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/* This message informs the server that the size or position of the window has changed */
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struct nxsvrmsg_setposition_s
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{
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uint32 msgid; /* NX_SVRMSG_SETPOSITION */
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FAR struct nxbe_window_s *wnd; /* The window whose position/size has changed */
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FAR struct nxgl_point_s pos; /* The new window position */
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};
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/* This message informs the server that the size or position of the window has changed */
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struct nxsvrmsg_setsize_s
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{
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uint32 msgid; /* NX_SVRMSG_SETSIZE */
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FAR struct nxbe_window_s *wnd; /* The window whose position/size has changed */
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FAR struct nxgl_size_s size; /* The new window size */
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};
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/* This message informs the server that the size or position of the window has changed */
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struct nxsvrmsg_getposition_s
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{
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uint32 msgid; /* NX_SVRMSG_FETPOSITION */
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FAR struct nxbe_window_s *wnd; /* The window whose position/size has changed */
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};
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/* This message informs the server to raise this window to the top of the display */
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struct nxsvrmsg_raise_s
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{
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uint32 msgid; /* NX_SVRMSG_RAISE */
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FAR struct nxbe_window_s *wnd; /* The window to be raised */
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};
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/* This message informs the server to lower this window to the bottom of the display */
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struct nxsvrmsg_lower_s
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{
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uint32 msgid; /* NX_SVRMSG_LOWER */
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FAR struct nxbe_window_s *wnd; /* The window to be lowered */
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};
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/* Fill a rectangle in the window with a color */
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struct nxsvrmsg_fill_s
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{
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uint32 msgid; /* NX_SVRMSG_FILL */
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FAR struct nxbe_window_s *wnd; /* The window to fill */
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struct nxgl_rect_s rect; /* The rectangle in the window to fill */
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nxgl_mxpixel_t color[CONFIG_NX_NPLANES]; /* Color to use in the fill */
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};
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/* Fill a trapezoidal region in the window with a color */
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struct nxsvrmsg_filltrapezoid_s
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{
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uint32 msgid; /* NX_SVRMSG_FILLTRAP */
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FAR struct nxbe_window_s *wnd; /* The window to fill */
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FAR struct nxgl_rect_s clip; /* The clipping window */
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struct nxgl_trapezoid_s trap; /* The trapezoidal region in the window to fill */
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nxgl_mxpixel_t color[CONFIG_NX_NPLANES]; /* Color to use in the fill */
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};
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/* Move a rectangular region within the window */
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struct nxsvrmsg_move_s
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{
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uint32 msgid; /* NX_SVRMSG_MOVE */
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FAR struct nxbe_window_s *wnd; /* The window within which the move is done */
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struct nxgl_rect_s rect; /* Describes the rectangular region to move */
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struct nxgl_point_s offset; /* The offset to move the region */
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};
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/* Copy a rectangular bitmap into the window */
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struct nxsvrmsg_bitmap_s
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{
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uint32 msgid; /* NX_SVRMSG_BITMAP */
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FAR struct nxbe_window_s *wnd; /* The window with will receive the bitmap image */
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struct nxgl_rect_s dest; /* Destination location of the bitmap in the window */
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FAR const void *src[CONFIG_NX_NPLANES]; /* The start of the source image. */
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struct nxgl_point_s origin; /* Offset into the source image data */
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unsigned int stride; /* The width of the full source image in pixels. */
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};
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/* Set the color of the background */
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struct nxsvrmsg_setbgcolor_s
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{
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uint32 msgid; /* NX_SVRMSG_SETBGCOLOR */
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nxgl_mxpixel_t color[CONFIG_NX_NPLANES]; /* Color to use in the background */
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};
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/* This message reports a new mouse event from a hardware controller attached to
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* the server as a regular client (this message may have even been sent from an
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* interrupt handler).
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*/
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#ifdef CONFIG_NX_MOUSE
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struct nxsvrmsg_mousein_s
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{
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uint32 msgid; /* NX_SVRMSG_MOUSEIN */
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struct nxgl_point_s pt; /* Mouse X/Y position */
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ubyte buttons; /* Mouse button set */
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};
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#endif
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/* This message reports a new keyboard event from a hardware controller attached to
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* some kind of keypad (this message may have even been sent from an
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* interrupt handler).
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*/
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#ifdef CONFIG_NX_KBD
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struct nxsvrmsg_kbdin_s
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{
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uint32 msgid; /* NX_SVRMSG_KBDIN */
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ubyte nch /* Number of characters received */
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ubyte ch[1]; /* Array of received characters */
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};
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#endif
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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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/****************************************************************************
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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 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: nxmu_semtake
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*
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* Description:
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* Take the semaphore, handling EINTR wakeups. See the nxmu_semgive macro.
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*
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* Input Parameters:
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* sem - the semaphore to be taken.
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*
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* Return:
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* None
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*
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****************************************************************************/
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EXTERN void nxmu_semtake(sem_t *sem);
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/****************************************************************************
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* Name: nxmu_openwindow
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*
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* Description:
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* Create a new window.
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*
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* Input Parameters:
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* be - The back-end status structure
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* wnd - The pre-allocated window structure to be ininitilized [IN/OUT]
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*
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* Return:
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* None
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*
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****************************************************************************/
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EXTERN void nxmu_openwindow(FAR struct nxbe_state_s *be,
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FAR struct nxbe_window_s *wnd);
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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
|
|
* 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
|
|
*
|
|
****************************************************************************/
|
|
|
|
EXTERN 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
|
|
*
|
|
****************************************************************************/
|
|
|
|
EXTERN void nxmu_releasebkgd(FAR struct nxfe_state_s *fe);
|
|
|
|
/****************************************************************************
|
|
* Name: nxfe_reportposition
|
|
*
|
|
* Descripton:
|
|
* Report the new size/position of the window.
|
|
*
|
|
****************************************************************************/
|
|
|
|
EXTERN void nxfe_reportposition(FAR struct nxbe_window_s *wnd);
|
|
|
|
/****************************************************************************
|
|
* Name: nxfe_redrawreq
|
|
*
|
|
* Descripton:
|
|
* Request the client that has this window to redraw the rectangular region.
|
|
*
|
|
****************************************************************************/
|
|
|
|
EXTERN 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
|
|
EXTERN 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
|
|
EXTERN 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
|
|
EXTERN int nxmu_mousein(FAR struct nxfe_state_s *fe,
|
|
FAR const struct nxgl_point_s *pos, int button);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: nxmu_kbdin
|
|
*
|
|
* Descripton:
|
|
* 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
|
|
EXTERN void nxmu_kbdin(FAR struct nxfe_state_s *fe, ubyte nch, ubyte *ch);
|
|
#endif
|
|
|
|
#undef EXTERN
|
|
#if defined(__cplusplus)
|
|
}
|
|
#endif
|
|
|
|
#endif /* __GRAPHICS_NXMU_NXFE_H */
|
|
|