mirror of
https://github.com/reactos/reactos.git
synced 2024-11-02 21:09:15 +00:00
321 lines
10 KiB
C
321 lines
10 KiB
C
/* vt100.h
|
|
*
|
|
* AUTHOR: John L. Miller, johnmil@cs.cmu.edu / johnmil@jprc.com
|
|
* DATE: 8/4/96
|
|
*
|
|
* Copyright (c) 1996 John L. Miller
|
|
*
|
|
* Full permission is granted to use, modify and distribute
|
|
* this code, provided:
|
|
* 1) This comment field is included in its entirity
|
|
* 2) No money is charged for any work including or based on
|
|
* portions of this code.
|
|
*
|
|
* If you're a nice person and find this useful, I'd appreciate a
|
|
* note letting me know about it. e-mail is usually what spurs me
|
|
* on to improve and support software I've written.
|
|
*
|
|
*/
|
|
|
|
|
|
/* This identifier should be spit back to the computer when a terminal
|
|
* id is requested.
|
|
*/
|
|
#define ANSWERBACK_MESSAGE "vt100"
|
|
|
|
/* Various terminal-related modes Entries are as follows:
|
|
* Identification esc. ID If set, if clear
|
|
*/
|
|
|
|
/* Keyboard action 2 Locked Unlocked */
|
|
#define CAPS_MODE 0x00000001
|
|
/* Insertion 4 Insert Overwrite */
|
|
#define INSERT_MODE 0x00000002
|
|
/* Send - Receive 12 Full Echo */
|
|
#define FULLDUPLEX_MODE 0x00000004
|
|
/* Line feed/New line 20 New line Line feed */
|
|
#define NEWLINE_MODE 0x00000008
|
|
|
|
|
|
#define NUM_TERM_ATTR_MODES 9 /* We only track eight '?' escape sequences */
|
|
|
|
/* Cursor key ?1 Application Cursor */
|
|
#define CURSORAPPL_MODE 0x00000010
|
|
/* ANSI/VT52 ?2 ANSI VT52 */
|
|
#define ANSI_MODE 0x00000020
|
|
/* Column ?3 132 80 */
|
|
#define COL132_MODE 0x00000040
|
|
/* Scrolling ?4 Smooth Jump */
|
|
#define SMOOTHSCROLL_MODE 0x00000080
|
|
/* Screen ?5 Reverse Normal */
|
|
#define REVSCREEN_MODE 0x00000100
|
|
/* Origin ?6 Relative Absolute */
|
|
#define ORIGINREL_MODE 0x00000200
|
|
/* Wraparound ?7 Wrap Truncate */
|
|
#define WRAP_MODE 0x00000400
|
|
/* Auto key repeat ?8 Repeating No repeat */
|
|
#define REPEAT_MODE 0x00000800
|
|
|
|
|
|
/* Print form feed ?18 Yes No */
|
|
#define PRINTFF_MODE 0x00001000
|
|
/* Print extent ?19 Full screen Scrolling region */
|
|
#define PRINTFULLSCR_MODE 0x00002000
|
|
/* Keypad application 'Esc =' numeric 'Esc >' */
|
|
#define KEYPADNUMERIC_MODE 0x00004000
|
|
/* default mode that we start the emulator with */
|
|
#define DEFAULT_MODE (NEWLINE_MODE|ANSI_MODE|REPEAT_MODE)
|
|
|
|
/* This constant is VERY important - the size of the buffer for
|
|
* unprocessed vt-100 prints!
|
|
*/
|
|
#define MAXVTBUFLEN 4096
|
|
|
|
/* Constants used in place of actual row and column numbers
|
|
* for the cursor movement and text erasing and deleting functions.
|
|
*/
|
|
#define CUR_ROW -999
|
|
#define CUR_COL -999
|
|
#define ALL_TABS -1999
|
|
|
|
#define LEFT_EDGE 0
|
|
#define RIGHT_EDGE 12000
|
|
#define TOP_EDGE 0
|
|
#define BOTTOM_EDGE 12000
|
|
|
|
/* Text attribute definitions; color, font, bold. */
|
|
#define NUM_SC_ATTRIBUTES 11
|
|
|
|
#define SC_RED 0x0001
|
|
#define SC_GREEN 0x0002
|
|
#define SC_BLUE 0x0004
|
|
#define SC_BOLD 0x0010
|
|
#define SC_UL 0x0020 /* Underlined */
|
|
#define SC_BL 0x0040 /* Blinking */
|
|
#define SC_RV 0x0080 /* Reverse video */
|
|
#define SC_ASCII 0x0100 /* Normal ASCII (USASCII) */
|
|
#define SC_G0 0x0200 /* graphics set G0 */
|
|
#define SC_G1 0x0400 /* Graphics set G1 */
|
|
#define SC_GRAPHICS 0x0800 /* Good question */
|
|
|
|
|
|
/* forward variable declarations */
|
|
|
|
extern int termAttrMode[NUM_TERM_ATTR_MODES];
|
|
extern int alltermAttrModes;
|
|
|
|
|
|
/* prototypes from vt100.c */
|
|
|
|
/* functions meant for use outside of the emulator */
|
|
|
|
int vtputs(char *f);
|
|
int vtprintf(char *format, ...);
|
|
int vtInitVT100(void);
|
|
int vtProcessedTextOut(char *cbuf, int count);
|
|
|
|
|
|
/* Prototype for functions which MUST BE SUPPLIED BY THE BACK END!!! */
|
|
|
|
/* Back-end specific initialization is performed in this function.
|
|
* this is gauranteed to be called before any other requests are made
|
|
* of the back end.
|
|
*/
|
|
|
|
/* beInitVT100Terminal() -
|
|
*
|
|
* This function is called by the VT100 emulator as soon as the
|
|
* front-end terminal is initialized. It's responsible for setting
|
|
* initial state of the terminal, and initing our many wacky variables.
|
|
*/
|
|
int beInitVT100Terminal();
|
|
|
|
|
|
/* beAbsoluteCursor -
|
|
*
|
|
* Given an input row and column, move the cursor to the
|
|
* absolute screen coordinates requested. Note that if the
|
|
* display window has scrollbars, the column is adjusted
|
|
* to take that into account, but the row is not. This allows
|
|
* for large scrollback in terminal windows.
|
|
*
|
|
* ROW must be able to accept CUR_ROW, TOP_EDGE, BOTTOM_EDGE,
|
|
* or a row number.
|
|
*
|
|
* COLUMN must be able to accept CUR_COL, LEFT_EDGE, RIGHT_EDGE,
|
|
* or a column number.
|
|
*/
|
|
int beAbsoluteCursor(int row, int col);
|
|
|
|
|
|
/* beOffsetCursor -
|
|
*
|
|
* Given an input row and column offset, move the cursor by that
|
|
* many positions. For instance, row=0 and column=-1 would move
|
|
* the cursor left a single column.
|
|
*
|
|
* If the cursor can't move the requested amount, results are
|
|
* unpredictable.
|
|
*/
|
|
int beOffsetCursor(int row, int column);
|
|
|
|
|
|
/* beRestoreCursor -
|
|
*
|
|
* Saved cursor position should be stored in a static
|
|
* variable in the back end. This function restores the
|
|
* cursor to the position stored in that variable.
|
|
*/
|
|
int beRestoreCursor(void);
|
|
|
|
|
|
/* beSaveCursor -
|
|
*
|
|
* The back-end should maintain a static variable with the
|
|
* last STORED cursor position in it. This function replaces
|
|
* the contents of that variable with the current cursor position.
|
|
* The cursor may be restored to this position by using the
|
|
* beRestoreCursor function.
|
|
*/
|
|
int beSaveCursor(void);
|
|
|
|
|
|
/* beGetTextAttributes -
|
|
*
|
|
* given a pointer to 'fore'ground and 'back'ground ints,
|
|
* fill them with a device-independant description of the
|
|
* current foreground and background colors, as well as any
|
|
* font information in the foreground variable.
|
|
*/
|
|
int beGetTextAttributes(int *fore, int *back);
|
|
|
|
|
|
/* beSetTextAttributes -
|
|
*
|
|
* Given a foreground and a background device independant (SC) color and font
|
|
* specification, apply these to the display, and save the state in the
|
|
* static screen variables.
|
|
*
|
|
* Note that many font-specific constants (bold/underline/reverse, G0/G1/ASCII)
|
|
* are stored ONLY in the foreground specification.
|
|
*/
|
|
int beSetTextAttributes(int fore, int back);
|
|
|
|
|
|
/* beRawTextOut-
|
|
*
|
|
* The name of this function is misleading. Given a pointer to
|
|
* ascii text and a count of bytes to print, print them to the
|
|
* display device. If wrapping is enabled, wrap text. If there is a
|
|
* scrolling region set and the cursor is in it,
|
|
* scroll only within that region. 'beRawTextOut' means that it's guaranteed
|
|
* not to have control sequences within the text.
|
|
*/
|
|
int beRawTextOut(char *text, int len);
|
|
|
|
|
|
/* beEraseText -
|
|
*
|
|
* Given a 'from' and a 'to' position in display coordinates,
|
|
* this function will fill in all characters between the two
|
|
* (inclusive) with spaces. Note that the coordinates do NOT
|
|
* specify a rectangle. erasing from (1,1) to (2,2) erases
|
|
* all of the first row, and the first two characters of the
|
|
* second.
|
|
*
|
|
* Note that this routine must be able to handle TOP_EDGE,
|
|
* BOTTOM_EDGE, LEFT_EDGE, RIGHT_EDGE, CUR_ROW, and CUR_COL
|
|
* in the appropriate parameters.
|
|
*/
|
|
int beEraseText(int rowFrom, int colFrom, int rowTo, int colTo);
|
|
|
|
|
|
/* beDeleteText -
|
|
*
|
|
* Given a screen cursor 'from' and 'to' position, this function
|
|
* will delete all text between the two. Text will be scrolled
|
|
* up as appropriate to fill the deleted space. Note that, as in
|
|
* beEraseText, the two coordinates don't specify a rectangle, but
|
|
* rather a starting position and ending position. In other words,
|
|
* deleting from (1,1) to (2,2) should move the text from (2,3) to the
|
|
* end of the second row to (1,1), move line 3 up to line 2, and so on.
|
|
*
|
|
* This function must be able to process TOP_EDGE, BOTTOM_EDGE, LEFT_EDGE,
|
|
* RIGHT_EDGE, CUR_ROW, and CUR_COL specifications in the appropriate
|
|
* variables as well as regular row and column specifications.
|
|
*/
|
|
int beDeleteText(int rowFrom, int colFrom, int rowTo, int colTo);
|
|
|
|
|
|
/* beInsertRow -
|
|
*
|
|
* Given a row number or CUR_ROW, TOP_EDGE or BOTTOM_EDGE as an input,
|
|
* this function will scroll all text from the current row down down by one,
|
|
* and create a blank row under the cursor.
|
|
*/
|
|
int beInsertRow(int row);
|
|
|
|
|
|
/* beTransmitText -
|
|
*
|
|
* Given a pointer to text and byte count, this routine should transmit data
|
|
* to whatever host made the request it's responding to. Typically this routin
|
|
* should transmit data as though the user had typed it in.
|
|
*/
|
|
int beTransmitText(char *text, int len);
|
|
|
|
|
|
/* beAdvanceToTab -
|
|
*
|
|
* This routine will destructively advance the cursor to the
|
|
* next set tab, or to the end of the line if there are no
|
|
* more tabs to the right of the cursor.
|
|
*/
|
|
|
|
int beAdvanceToTab(void);
|
|
|
|
|
|
/* beClearTab -
|
|
*
|
|
* This function accepts a constant, and will try to clear tabs
|
|
* appropriately. Its argument is either
|
|
* ALL_TABS, meaning all tabs should be removed
|
|
* CUR_COL, meaning the tab in the current column should be wiped, or
|
|
* a column value, meaning if there's a tab there it should be wiped.
|
|
*
|
|
*/
|
|
int beClearTab(int col);
|
|
|
|
|
|
/* beSetScrollingRows -
|
|
*
|
|
* Given a pair of row numbers, this routine will set the scrolling
|
|
* rows to those values. Note that this routine will accept
|
|
* TOP_ROW and BOTTOM_ROW as values, meaning that scrolling should
|
|
* be enabled for the entire display, regardless of resizing.
|
|
*/
|
|
int beSetScrollingRows(int fromRow, int toRow);
|
|
|
|
|
|
/* beRingBell -
|
|
*
|
|
* Ring the system bell once.
|
|
*/
|
|
int beRingBell(void);
|
|
|
|
|
|
/* beGetTermMode -
|
|
*
|
|
* Return the value of conTermMode, which is the terminal settings which
|
|
* can be queried/set by <esc>[?#h/l.
|
|
*/
|
|
int beGetTermMode();
|
|
|
|
|
|
/* beSetTermMode -
|
|
*
|
|
* Set the terminal as requested, assuming we can. Right now we only handle a
|
|
* couple of the possible flags, but we store many of the others.
|
|
*/
|
|
int beSetTermMode(int newMode);
|