c222043ed1
The existing implementation of the termcurses_deinitterm calls termcurses_setcolors with some hard-coded values, leading to different terminal emulators' behavior. Instead, a reset call needs to be made to the implementation to roll back changes. A new operation (terminate) has been added to the termcurses_ops interface to achieve this functionality. The vt100's terminate implementation ensures that default foreground and background colors are applied portably across different terminals emulators.
248 lines
7.5 KiB
C
248 lines
7.5 KiB
C
/****************************************************************************
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* apps/include/system/termcurses.h
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*
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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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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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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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*
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****************************************************************************/
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#ifndef __APPS_INCLUDE_SYSTEM_TERMCURSES_H
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#define __APPS_INCLUDE_SYSTEM_TERMCURSES_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <stdint.h>
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#include <nuttx/fs/ioctl.h>
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#include <nuttx/fs/fs.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define TCURS_CLEAR_SCREEN 1
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#define TCURS_CLEAR_LINE 2
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#define TCURS_CLEAR_EOS 3
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#define TCURS_CLEAR_EOL 4
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#define TCURS_MOVE_UP 1
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#define TCURS_MOVE_DOWN 2
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#define TCURS_MOVE_LEFT 3
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#define TCURS_MOVE_RIGHT 4
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#define TCURS_MOVE_YX 5
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#define TCURS_MOVE_TO_ROW 6
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#define TCURS_MOVE_TO_COL 7
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#define TCURS_COLOR_FG 0x01
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#define TCURS_COLOR_BG 0x02
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#define TCURS_ATTRIB_BLINK 0x0001
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#define TCURS_ATTRIB_BOLD 0x0002
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#define TCURS_ATTRIB_UNDERLINE 0x0004
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#define TCURS_ATTRIB_INVIS 0x0008
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#define TCURS_ATTRIB_CURS_HIDE 0x0010
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#define TCURS_ATTRIB_CURS_SHOW 0x0020
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/****************************************************************************
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* Public Type Definitions
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****************************************************************************/
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/* Used with TTY ioctls */
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struct tcurses_ioctl_s
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{
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uint16_t tc_row; /* Cursor row */
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uint16_t tc_col; /* Cursor col */
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};
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struct termcurses_dev_s;
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struct termcurses_s;
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struct termcurses_colors_s;
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struct termcurses_ops_s
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{
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/* Initialize a new instance bound to a file */
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CODE FAR struct termcurses_s * (*init)(int in_fd, int out_fd);
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/* Clear operations (screen, line, EOS, EOL) */
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CODE int (*clear)(FAR struct termcurses_s *dev, int type);
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/* Cursor Move operations */
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CODE int (*move)(FAR struct termcurses_s *dev, int type, int col, int row);
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/* Get terminal size in row/col dimensions */
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CODE int (*getwinsize)(FAR struct termcurses_s *dev,
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FAR struct winsize *winsz);
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/* Set fg/bg colors */
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CODE int (*setcolors)(FAR struct termcurses_s *dev,
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FAR struct termcurses_colors_s *colors);
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/* Set display attributes */
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CODE int (*setattrib)(FAR struct termcurses_s *dev,
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unsigned long attributes);
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/* Get a keycode value */
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CODE int (*getkeycode)(FAR struct termcurses_s *dev,
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int *specialkey,
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int *keymodifers);
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/* Check for cached keycode value */
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CODE bool (*checkkey)(FAR struct termcurses_s *dev);
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/* Terminate */
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CODE int (*terminate)(FAR struct termcurses_s *dev);
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};
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struct termcurses_dev_s
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{
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FAR const struct termcurses_ops_s *ops;
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FAR struct termcurses_dev_s *next;
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FAR const char *name;
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};
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struct termcurses_s
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{
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FAR struct termcurses_dev_s *dev;
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FAR struct file *filep;
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};
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struct termcurses_colors_s
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{
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uint8_t color_mask;
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uint8_t fg_red;
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uint8_t fg_green;
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uint8_t fg_blue;
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uint8_t bg_red;
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uint8_t bg_green;
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uint8_t bg_blue;
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};
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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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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* termcurses_initterm:
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*
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* Finds a termcurses_s device based on terminal type string and initialize
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* a new context for device control.
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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 **term);
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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 *term);
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/****************************************************************************
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* Name: termcurses_moveyx
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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_moveyx(FAR struct termcurses_s *term, int row, int col);
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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,
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unsigned long attrib);
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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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* Name: termcurses_getwinsize
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*
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* Description:
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* Determines the size of the terminal screen in terms of character rows
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* and cols.
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*
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****************************************************************************/
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int termcurses_getwinsize(FAR struct termcurses_s *term,
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FAR struct winsize *winsz);
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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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FAR int *keymodifiers);
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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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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* __APPS_INCLUDE_SYSTEM_TERMCURSES_H */
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