2019-01-05 19:40:26 +01:00
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/************************************************************************************
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2021-06-10 18:40:35 +02:00
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* apps/system/termcurses/termcurses.c
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2019-01-05 19:40:26 +01:00
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*
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2021-06-10 13:17:16 +02:00
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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2019-01-05 19:40:26 +01:00
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*
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2021-06-10 13:17:16 +02:00
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* http://www.apache.org/licenses/LICENSE-2.0
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2019-01-05 19:40:26 +01:00
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*
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2021-06-10 13:17:16 +02:00
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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2019-01-05 19:40:26 +01:00
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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 <sys/types.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <debug.h>
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#include "tcurses_priv.h"
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/************************************************************************************
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* Private Data
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************************************************************************************/
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static struct termcurses_dev_s *g_termcurses_devices[] =
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{
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#ifdef CONFIG_SYSTEM_TERMCURSES_VT100
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&g_vt100_tcurs,
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#endif
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NULL
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};
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/************************************************************************************
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* Public Functions
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************************************************************************************/
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/************************************************************************************
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* Name: termcurses_initterm
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*
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* Description:
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* Allocate and initialize a termcurses_s context based on the provided
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* term_type string. If the string is NULL, defaults to "vt100".
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*
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************************************************************************************/
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int termcurses_initterm(FAR const char *term_type, int in_fd, int out_fd,
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FAR struct termcurses_s **dev)
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{
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FAR struct termcurses_dev_s *pnext;
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int c;
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/* Set term_type if NULL provided */
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if (term_type == NULL)
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{
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/* Check the "TERM" env variable */
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term_type = getenv("TERM");
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if (term_type == NULL)
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{
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/* Default to vt100 as a last resort */
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term_type = (FAR const char *) "vt100";
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}
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}
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/* Find the selected term_type in the list of registered handlers */
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c = 0;
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pnext = g_termcurses_devices[c];
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while (pnext != NULL)
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{
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/* Test if this item matches the selected term_type */
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if (strstr(pnext->name, term_type) != NULL)
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{
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/* Allocate a new structure for this termcurses */
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if (*dev == NULL)
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{
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/* Call the termcurses_dev init function */
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*dev = pnext->ops->init(in_fd, out_fd);
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}
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return OK;
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}
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/* No match. Check next item in linked list */
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pnext = g_termcurses_devices[++c];
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}
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/* Not found! */
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*dev = NULL;
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return -ENOSYS;
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}
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/************************************************************************************
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* Name: termcurses_deinitterm
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*
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* Description:
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* Free all space for the termcurses terminal and perform any specific
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* de-initialization tasks.
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*
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************************************************************************************/
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int termcurses_deinitterm(FAR struct termcurses_s *dev)
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{
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struct termcurses_colors_s colors;
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/* Ensure terminal has default color scheme */
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colors.fg_red = 255;
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colors.fg_green = 255;
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colors.fg_blue = 255;
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colors.bg_red = 0;
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colors.bg_green = 0;
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colors.bg_blue = 0;
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2021-06-10 18:40:35 +02:00
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colors.color_mask = 0xff;
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2019-01-05 19:40:26 +01:00
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termcurses_setcolors(dev, &colors);
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/* For now, simply free the memory */
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free(dev);
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return OK;
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}
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/************************************************************************************
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* Name: termcurses_moveyx
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*
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* Description:
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* Move to location yx (row,col) on terminal
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*
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************************************************************************************/
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int termcurses_moveyx(FAR struct termcurses_s *term, int row, int col)
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{
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FAR struct termcurses_dev_s *dev = (FAR struct termcurses_dev_s *) term;
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/* Call the dev function */
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if (dev->ops->move)
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{
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return dev->ops->move(term, TCURS_MOVE_YX, col, row);
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}
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return -ENOSYS;
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}
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/************************************************************************************
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* Name: termcurses_setcolors
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*
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* Description:
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* Configure output text to render in the specified fg/bg colors.
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*
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************************************************************************************/
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int termcurses_setcolors(FAR struct termcurses_s *term,
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FAR struct termcurses_colors_s *colors)
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{
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FAR struct termcurses_dev_s *dev = (FAR struct termcurses_dev_s *) term;
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/* Call the dev function */
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if (dev->ops->setcolors)
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{
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return dev->ops->setcolors(term, colors);
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}
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return -ENOSYS;
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}
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/************************************************************************************
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* Name: termcurses_setattribute
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*
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* Description:
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* Configure output text to render in the specified fg/bg colors.
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*
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************************************************************************************/
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int termcurses_setattribute(FAR struct termcurses_s *term, unsigned long attrib)
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{
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FAR struct termcurses_dev_s *dev = (FAR struct termcurses_dev_s *) term;
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/* Call the dev function */
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if (dev->ops->setattrib)
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{
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return dev->ops->setattrib(term, attrib);
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}
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return -ENOSYS;
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}
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/************************************************************************************
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* Name: termcurses_getwinsize
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*
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* Description:
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* Get size of terminal screen in terms of character rows and cols.
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*
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************************************************************************************/
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int termcurses_getwinsize(FAR struct termcurses_s *term, FAR struct winsize *winsz)
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{
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FAR struct termcurses_dev_s *dev = (FAR struct termcurses_dev_s *) term;
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/* Call the dev function */
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if (dev->ops->getwinsize)
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{
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return dev->ops->getwinsize(term, winsz);
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}
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return -ENOSYS;
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}
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/************************************************************************************
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* Name: termcurses_getkeycode
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*
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* Description:
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* Get a translated key code from the terminal input.
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*
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************************************************************************************/
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int termcurses_getkeycode(FAR struct termcurses_s *term, FAR int *specialkey,
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int *keymodifiers)
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{
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FAR struct termcurses_dev_s *dev = (FAR struct termcurses_dev_s *) term;
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/* Call the dev function */
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if (dev->ops->getkeycode)
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{
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return dev->ops->getkeycode(term, specialkey, keymodifiers);
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}
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return -1;
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}
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2019-01-08 15:21:39 +01:00
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/************************************************************************************
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* Name: termcurses_checkkey
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*
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* Description:
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* Check if there is a key waiting to be processed.
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*
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************************************************************************************/
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bool termcurses_checkkey(FAR struct termcurses_s *term)
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{
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FAR struct termcurses_dev_s *dev = (FAR struct termcurses_dev_s *) term;
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/* Call the dev function */
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if (dev->ops->checkkey)
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{
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return dev->ops->checkkey(term);
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}
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return 0;
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}
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