/****************************************************************************
* apps/examples/nxtext/nxtext_main.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <sys/boardctl.h>
#include <stdint.h>
#include <stdbool.h>
#include <stdio.h>
#include <unistd.h>
#include <time.h>
#include <string.h>
#include <sched.h>
#include <pthread.h>
#include <errno.h>
#include <debug.h>
#include <nuttx/arch.h>
#include <nuttx/board.h>
#ifdef CONFIG_NX_LCDDRIVER
# include <nuttx/lcd/lcd.h>
#else
# include <nuttx/video/fb.h>
#endif
#include <nuttx/nx/nx.h>
#include <nuttx/nx/nxglib.h>
#include <nuttx/nx/nxfonts.h>
#include "nxtext_internal.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Configuration ************************************************************/
/* If not specified, assume that the hardware supports one video plane */
#ifndef CONFIG_EXAMPLES_NXTEXT_VPLANE
# define CONFIG_EXAMPLES_NXTEXT_VPLANE 0
#endif
/* If not specified, assume that the hardware supports one LCD device */
#ifndef CONFIG_EXAMPLES_NXTEXT_DEVNO
# define CONFIG_EXAMPLES_NXTEXT_DEVNO 0
#endif
#define BGMSG_LINES 24
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
#ifdef CONFIG_NX_KBD
static const uint8_t g_pumsg[] = "Pop-Up!";
#endif
static const char *g_bgmsg[BGMSG_LINES] =
{
"\nJULIET\n", /* Line 1 */
"Wilt thou be gone?\n", /* Line 2 */
" It is not yet near day:\n", /* Line 3 */
"It was the nightingale,\n", /* Line 4 */
" and not the lark,\n", /* Line 5 */
"That pierced the fearful hollow\n", /* Line 6 */
" of thine ear;\n", /* Line 7 */
"Nightly she sings\n", /* Line 8 */
" on yon pomegranate-tree:\n", /* Line 9 */
"Believe me, love,\n", /* Line 10 */
" it was the nightingale.\n", /* Line 11 */
"\nROMEO\n", /* Line 12 */
"It was the lark,\n", /* Line 13 */
" the herald of the morn,\n", /* Line 14 */
"No nightingale:\n", /* Line 15 */
" look, love, what envious streaks\n", /* Line 16 */
"Do lace the severing clouds\n", /* Line 17 */
" in yonder east:\n", /* Line 18 */
"Night's candles are burnt out,\n", /* Line 19 */
" and jocund day\n", /* Line 20 */
"Stands tiptoe\n", /* Line 21 */
" on the misty mountain tops.\n", /* Line 22 */
"I must be gone and live,\n", /* Line 23 */
" or stay and die.\n" /* Line 24 */
};
/****************************************************************************
* Public Data
****************************************************************************/
/* The connection handler */
NXHANDLE g_hnx = NULL;
/* The font handles */
NXHANDLE g_bghfont = NULL;
NXHANDLE g_puhfont = NULL;
/* The screen resolution */
nxgl_coord_t g_xres;
nxgl_coord_t g_yres;
bool b_haveresolution = false;
bool g_connected = false;
sem_t g_semevent = {0};
int g_exitcode = NXEXIT_SUCCESS;
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: nxtext_initialize
****************************************************************************/
static int nxtext_initialize(void)
{
struct sched_param param;
pthread_t thread;
int ret;
/* Set the client task priority */
param.sched_priority = CONFIG_EXAMPLES_NXTEXT_CLIENTPRIO;
ret = sched_setparam(0, ¶m);
if (ret < 0)
{
printf("nxtext_initialize: sched_setparam failed: %d\n" , ret);
g_exitcode = NXEXIT_SCHEDSETPARAM;
return ERROR;
}
/* Start the NX server kernel thread */
printf("nxtext_initialize: Starting NX server\n");
ret = boardctl(BOARDIOC_NX_START, 0);
if (ret < 0)
{
printf("nxtext_initialize: Failed to start the NX server: %d\n", errno);
g_exitcode = NXEXIT_SERVERSTART;
return ERROR;
}
/* Connect to the server */
g_hnx = nx_connect();
if (g_hnx)
{
pthread_attr_t attr;
#ifdef CONFIG_VNCSERVER
/* Setup the VNC server to support keyboard/mouse inputs */
struct boardioc_vncstart_s vnc =
{
0, g_hnx
};
ret = boardctl(BOARDIOC_VNC_START, (uintptr_t)&vnc);
if (ret < 0)
{
printf("boardctl(BOARDIOC_VNC_START) failed: %d\n", ret);
nx_disconnect(g_hnx);
g_exitcode = NXEXIT_FBINITIALIZE;
return ERROR;
}
#endif
/* Start a separate thread to listen for server events. This is probably
* the least efficient way to do this, but it makes this example flow more
* smoothly.
*/
pthread_attr_init(&attr);
param.sched_priority = CONFIG_EXAMPLES_NXTEXT_LISTENERPRIO;
pthread_attr_setschedparam(&attr, ¶m);
pthread_attr_setstacksize(&attr, CONFIG_EXAMPLES_NXTEXT_STACKSIZE);
ret = pthread_create(&thread, &attr, nxtext_listener, NULL);
if (ret != 0)
{
printf("nxtext_initialize: pthread_create failed: %d\n", ret);
g_exitcode = NXEXIT_PTHREADCREATE;
return ERROR;
}
/* Don't return until we are connected to the server */
while (!g_connected)
{
/* Wait for the listener thread to wake us up when we really
* are connected.
*/
sem_wait(&g_semevent);
}
}
else
{
printf("nxtext_initialize: nx_connect failed: %d\n", errno);
g_exitcode = NXEXIT_NXCONNECT;
return ERROR;
}
return OK;
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: nxtext_main
****************************************************************************/
int main(int argc, FAR char *argv[])
{
FAR struct nxtext_state_s *bgstate;
NXWINDOW hwnd = NULL;
nxgl_mxpixel_t color;
int popcnt;
int bkgndx;
int ret;
/* Initialize NX */
ret = nxtext_initialize();
printf("nxtext_main: NX handle=%p\n", g_hnx);
if (!g_hnx || ret < 0)
{
printf("nxtext_main: Failed to get NX handle: %d\n", errno);
g_exitcode = NXEXIT_NXOPEN;
goto errout;
}
/* Get the configured font handles */
g_bghfont = nxf_getfonthandle(CONFIG_EXAMPLES_NXTEXT_BGFONTID);
if (!g_bghfont)
{
printf("nxtext_main: Failed to get background font handle: %d\n", errno);
g_exitcode = NXEXIT_FONTOPEN;
goto errout;
}
g_puhfont = nxf_getfonthandle(CONFIG_EXAMPLES_NXTEXT_PUFONTID);
if (!g_puhfont)
{
printf("nxtext_main: Failed to get pop-up font handle: %d\n", errno);
g_exitcode = NXEXIT_FONTOPEN;
goto errout;
}
/* Set the background to the configured background color */
printf("nxtext_main: Set background color=%d\n", CONFIG_EXAMPLES_NXTEXT_BGCOLOR);
color = CONFIG_EXAMPLES_NXTEXT_BGCOLOR;
ret = nx_setbgcolor(g_hnx, &color);
if (ret < 0)
{
printf("nxtext_main: nx_setbgcolor failed: %d\n", errno);
g_exitcode = NXEXIT_NXSETBGCOLOR;
goto errout_with_nx;
}
/* Get the background window */
bgstate = nxbg_getstate();
ret = nx_requestbkgd(g_hnx, &g_nxtextcb, bgstate);
if (ret < 0)
{
printf("nxtext_main: nx_requestbkgd failed: %d\n", errno);
g_exitcode = NXEXIT_NXREQUESTBKGD;
goto errout_with_nx;
}
/* Wait until we have the screen resolution. */
while (!b_haveresolution)
{
sem_wait(&g_semevent);
}
printf("nxtext_main: Screen resolution (%d,%d)\n", g_xres, g_yres);
/* Now loop, adding text to the background and periodically presenting
* a pop-up window.
*/
popcnt = 0;
bkgndx = 0;
for (;;)
{
/* Sleep for one second */
sleep(1);
popcnt++;
/* Each three seconds, create a pop-up window. Destroy the pop-up
* window after two more seconds.
*/
if (popcnt == 3)
{
/* Create a pop-up window */
hwnd = nxpu_open();
#ifdef CONFIG_NX_KBD
/* Give keyboard input to the top window (which should be the pop-up) */
printf("nxtext_main: Send keyboard input: %s\n", g_pumsg);
ret = nx_kbdin(g_hnx, strlen((FAR const char *)g_pumsg), g_pumsg);
if (ret < 0)
{
printf("nxtext_main: nx_kbdin failed: %d\n", errno);
goto errout_with_hwnd;
}
#endif
}
else if (popcnt == 5)
{
/* Destroy the pop-up window and restart the sequence */
printf("nxtext_main: Close pop-up\n");
nxpu_close(hwnd);
popcnt = 0;
}
/* Give another line of text to the background window. Force this
* text to go the background by calling the background window interfaces
* directly.
*/
nxbg_write(g_bgwnd, (FAR const uint8_t *)g_bgmsg[bkgndx], strlen(g_bgmsg[bkgndx]));
if (++bkgndx >= BGMSG_LINES)
{
bkgndx = 0;
}
}
/* Close the pop-up window */
#ifdef CONFIG_NX_KBD
errout_with_hwnd:
#endif
if (popcnt >= 3)
{
printf("nxtext_main: Close pop-up\n");
nxpu_close(hwnd);
}
//errout_with_bkgd:
nx_releasebkgd(g_bgwnd);
errout_with_nx:
/* Disconnect from the server */
printf("nxtext_main: Disconnect from the server\n");
nx_disconnect(g_hnx);
errout:
return g_exitcode;
}