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-rw-r--r--libterm/Makefile16
-rw-r--r--libterm/screen_modes.c3
-rw-r--r--libterm/term.c361
-rw-r--r--libterm/term_gui.c31
-rw-r--r--libterm/term_io.c336
5 files changed, 747 insertions, 0 deletions
diff --git a/libterm/Makefile b/libterm/Makefile
new file mode 100644
index 0000000..759b3f5
--- /dev/null
+++ b/libterm/Makefile
@@ -0,0 +1,16 @@
+PROJECT=libterm
+CC=gcc
+LD=ld
+CFLAGS=-g3
+
+make:
+ $(CC) $(CFLAGS) -c term.c
+ $(CC) $(CFLAGS) -c screen_modes.c
+ $(CC) $(CFLAGS) -c term_io.c
+ $(CC) $(CFLAGS) -c term_gui.c
+ $(LD) -r term.o screen_modes.o term_io.o term_gui.o -o $(PROJECT).o
+
+clean:
+ rm *.o
+
+
diff --git a/libterm/screen_modes.c b/libterm/screen_modes.c
new file mode 100644
index 0000000..709b332
--- /dev/null
+++ b/libterm/screen_modes.c
@@ -0,0 +1,3 @@
+#include "screen_modes.h"
+
+
diff --git a/libterm/term.c b/libterm/term.c
new file mode 100644
index 0000000..81d967e
--- /dev/null
+++ b/libterm/term.c
@@ -0,0 +1,361 @@
+#include "term.h"
+
+#include "debug.h"
+
+#define T_ESC "\x1b"
+
+//setup initial terminal stuff
+//this coulc act differently, becouse allways there is
+//different terminal setting that should be default
+int term_init( term_screen *term )
+{
+ int ret=0;
+
+ memset( term, 0, sizeof( term_screen ));
+
+ if ( !isatty(STDIN_FILENO) )
+ {
+ ERROR("isatty failed\n")
+ goto exit_error;
+ }
+ //!!!!!!
+ //register atexit
+
+ term->ifd = STDIN_FILENO;
+ term->ofd = STDOUT_FILENO;
+
+ //if you whant raw mode then you should set it man
+ if ( tcgetattr( term->ifd, &term->orig_i ) == -1 ) goto exit_error;
+ term->raw_i = term->orig_i;
+ if ( tcgetattr( term->ofd, &term->orig_o ) == -1 ) goto exit_error;
+ term->raw_o = term->orig_o;
+
+ term->mode = SCREEN_MODE_80x25;
+
+ return ret;
+
+exit_error:
+ errno = ENOTTY;
+ return -1;
+}
+
+//set terminal speed return 0 if OK and 1 if not
+//im trust to input arguments that they are ok
+int term_set_speed( term_screen *ts, speed_t speed)
+{
+ int ret = cfsetospeed( &ts->raw_o, speed );
+ ret = tcsetattr( ts->ofd, TCSANOW, &ts->raw_o );
+ if ( ret != 0 )
+ return 1;
+
+ //if baudrate set to there then input speed same as
+ //output speed
+ cfsetispeed( &ts->raw_i, B0);
+ ret = tcsetattr( ts->ifd, TCSANOW, &ts->raw_i );
+ if ( ret != 0 )
+ return 1;
+ return 0;
+}
+
+//get maximal number of columns setting up cursor to 999 column
+//and getting on with place terminal have placed cursor and getting
+//column on with terminal putted cursor
+int term_get_maxcol( term_screen *ts )
+{
+ int ret=-1;
+ int orig_c;
+ int cur_c;
+
+ /* get initial cursor position */
+ if ( (orig_c = term_cur_get_c( ts )) == -1 )
+ goto exit_error;
+
+
+ /* go to right marging and get position */
+ if ( write( ts->ofd, T_ESC "[999C", 6 ) != 6 )
+ goto exit_error;
+ if ( (cur_c = term_cur_get_c( ts )) == -1 )
+ goto exit_error;
+ ret = cur_c;
+
+ /* restore position */
+ {
+ char buf[32];
+ snprintf( buf, 32, T_ESC "[" "%d" "D", cur_c-orig_c);
+ write( ts->ofd, buf, strlen(buf) );
+ }
+
+ return ret;
+
+exit_error:
+ return -1;
+
+}
+
+//try to setup far away line after that read position where
+//terminal have putted cursor and read line of that postion
+int term_get_maxrow( term_screen *ts )
+{
+ int ret=-1;
+ int orig_r;
+ int cur_r;
+
+ /* get initial cursor position */
+ if ( (orig_r = term_cur_get_r( ts )) == -1 )
+ goto exit_error;
+
+
+ /* go to right marging and get position */
+ if ( write( ts->ofd, T_ESC "[999B", 6 ) != 6 )
+ goto exit_error;
+ if ( (cur_r = term_cur_get_r( ts )) == -1 )
+ goto exit_error;
+ ret = cur_r;
+
+ /* restore position */
+ {
+ char buf[32];
+ snprintf( buf, 32, T_ESC "[" "%d" "A", cur_r-orig_r);
+ write( ts->ofd, buf, strlen(buf) );
+ }
+
+ return ret;
+
+exit_error:
+ return -1;
+}
+
+
+
+int term_cur_get_c( term_screen *ts )
+{
+ unsigned int i;
+ int row, col;
+ char buf[32];
+
+ if ( write( ts->ofd, "\x1b[6n", 4 ) != 4 ) goto exit_error;
+
+ i = 0;
+ while (i < sizeof(buf)-1)
+ {
+ if ( read( ts->ifd, buf+i,1 ) != 1 ) break;
+ if (buf[i] == 'R') break;
+ i++;
+ }
+ buf[i] = '\0';
+
+ /* Parse terminal response */
+ if ( buf[0] != '\x1b' || buf[1] != '[' ) goto exit_error;
+ if ( sscanf( buf+2, "%d;%d", &row, &col) != 2 ) goto exit_error;
+
+ return col;
+exit_error:
+ return -1;
+}
+
+
+int term_cur_get_r( term_screen *ts )
+{
+ unsigned int i;
+ int row, col;
+ char buf[32];
+
+ if ( write( ts->ofd, "\x1b[6n", 4 ) != 4 ) goto exit_error;
+
+ i = 0;
+ while (i < sizeof(buf)-1)
+ {
+ if ( read( ts->ifd, buf+i,1 ) != 1 ) break;
+ if (buf[i] == 'R') break;
+ i++;
+ }
+ buf[i] = '\0';
+
+ /* Parse terminal response */
+ if ( buf[0] != '\x1b' || buf[1] != '[' ) goto exit_error;
+ if ( sscanf( buf+2, "%d;%d", &row, &col) != 2 ) goto exit_error;
+
+ return row;
+exit_error:
+ return -1;
+}
+
+//set cursor column position
+int term_cur_set_c( term_screen *ts, unsigned int pc )
+{
+ int ret = 0;
+ int cur_r;
+
+ /* go to right marging and get position */
+ if ( (cur_r = term_cur_get_r( ts )) == -1 )
+ goto exit_error;
+ /* set position */
+ {
+ char buf[32];
+ int l;
+
+ snprintf( buf, 32, T_ESC "[%d;%dH", cur_r, pc);
+ l = strlen( buf );
+ if ( write( ts->ofd, buf, l ) != l)
+ goto exit_error;
+ }
+
+ return ret;
+
+exit_error:
+ return -1;
+}
+
+//set cursor row/line position
+int term_cur_set_r( term_screen *ts, unsigned int pr )
+{
+ int ret = 0;
+ int cur_c;
+
+ /* go to right marging and get position */
+ if ( (cur_c = term_cur_get_c( ts )) == -1 )
+ goto exit_error;
+ /* set position */
+ {
+ char buf[32];
+ int l;
+
+ snprintf( buf, 32, T_ESC "[%d;%dH", pr, cur_c);
+ l = strlen( buf );
+ if ( write( ts->ofd, buf, l ) != l)
+ goto exit_error;
+ }
+
+ return ret;
+
+exit_error:
+ return -1;
+}
+
+int term_cur_set_cr( term_screen *ts, unsigned int pc, unsigned int pr )
+{
+ int ret = 0;
+
+ /* set position */
+ {
+ char buf[32];
+ int l;
+
+ snprintf( buf, 32, T_ESC "[%d;%dH", pr, pc);
+ l = strlen( buf );
+ if ( write( ts->ofd, buf, l ) != l)
+ goto exit_error;
+ }
+ return ret;
+
+exit_error:
+ return -1;
+
+}
+
+
+//clean terminal with escape command
+int term_clr_scr( term_screen *ts )
+{
+ int ret = 0;
+
+ if ( write( ts->ofd, T_ESC "[H" T_ESC "[2J", 7 ) <= 0 ){};
+
+ return ret;
+}
+
+//set terminal default input/output behavior
+int term_set_raw_mode( term_screen *ts )
+{
+ int ret = 0;
+
+ if ( tcgetattr( ts->ifd, &ts->orig_i ) == -1 )
+ {
+ ERROR("Cannot get input terminal attributes\n");
+ goto exit_error;
+ }
+
+ ts->raw_i = ts->orig_i; /* modify the original mode */
+ /* input modes: no break, no CR to NL, no parity check, no strip char,
+ * no start/stop output control. */
+ ts->raw_i.c_iflag &= ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON);
+ /* output modes - disable post raw */
+ ts->raw_i.c_oflag &= ~(OPOST);
+ /* control modes - set 8 bit chars */
+ ts->raw_i.c_cflag |= (CS8);
+ /* local modes - choing off, canonical off, no extended functions,
+ * no signal chars (^Z,^C) */
+ ts->raw_i.c_lflag &= ~(ECHO | ICANON | IEXTEN | ISIG);
+ /* control chars - set return condition: min number of bytes and timer.
+ * We want read to return every single byte, without timeout. */
+ ts->raw_i.c_cc[VMIN] = 1;
+ ts->raw_i.c_cc[VTIME] = 0; /* 1 byte, no timer */
+
+ /* put terminal in raw mode after flushing */
+ if (tcsetattr( ts->ifd, TCSAFLUSH, &ts->raw_i) < 0)
+ {
+ ERROR("Cannot set new terminal input attribures\n");
+ goto exit_error;
+ }
+
+ return ret;
+
+exit_error:
+ errno = ENOTTY;
+ return -1;
+
+}
+
+
+//if there is no mode with some rows/columns , then just show that no mode setet
+// up and user should decide by his own what to do
+int term_mode_rows( term_screen *ts )
+{
+ int ret = -1;
+
+ if ( ts == NULL) return -1;
+
+ switch ( ts->mode )
+ {
+ //---------------------
+ case SCREEN_MODE_80x25:
+ ret = 25;
+ break;
+ //--------------------
+ case SCREEN_MODE_NONE:
+ default:
+ ret = -1;
+ }
+
+ return ret;
+}
+
+
+//if there is no mode with some rows/columns , then just show that no mode setet
+// up and user should decide by his own what to do
+int term_mode_columns( term_screen *ts )
+{
+ int ret = -1;
+
+ if ( ts == NULL) return -1;
+
+ switch ( ts->mode )
+ {
+ //---------------------
+ case SCREEN_MODE_80x25:
+ ret = 80;
+ break;
+ //--------------------
+ case SCREEN_MODE_NONE:
+ default:
+ ret = -1;
+ }
+
+ return ret;
+}
+
+
+void term_set_orig_mode( term_screen *ts )
+{
+ tcsetattr( ts->ifd, TCSAFLUSH, &ts->orig_i );
+} \ No newline at end of file
diff --git a/libterm/term_gui.c b/libterm/term_gui.c
new file mode 100644
index 0000000..dcdc840
--- /dev/null
+++ b/libterm/term_gui.c
@@ -0,0 +1,31 @@
+#include "term_gui.h"
+
+int term_gui_init( term_gui *tg, term_screen *ts )
+{
+ return 0;
+}
+
+
+int term_set_wh( term_screen *tg, int width, int height )
+{
+ return 0;
+}
+
+
+int term_gui_input_box( term_gui *ts, int x, int y, int w, int h, char *prompt,
+ char *str, size_t sz )
+{
+ return 0;
+}
+
+
+int term_gui_draw( term_gui *tg )
+{
+ return 0;
+}
+
+
+int term_gui_destroy( term_gui *tg )
+{
+ return 0;
+} \ No newline at end of file
diff --git a/libterm/term_io.c b/libterm/term_io.c
new file mode 100644
index 0000000..a1f157c
--- /dev/null
+++ b/libterm/term_io.c
@@ -0,0 +1,336 @@
+#include "term_io.h"
+
+int term_fprint( screen_mode_e mode, FILE *f )
+{
+ int ret=-1;
+ if (f == NULL)
+ return -1;
+
+ ERROR("\n");
+ switch ( mode )
+ {
+ case SCREEN_MODE_80x25:
+ {
+ }
+ break;
+ default:
+ printf("Unknown screen mode\n");
+ }
+
+ return ret;
+}
+
+int term_print( term_screen *ts, const char *s, size_t n)
+{
+ int ret=0;
+
+ if ( ts == NULL )
+ return -1;
+
+ if ( s == NULL )
+ return -1;
+
+ if ( n < 1 )
+ return -1;
+
+ if ( n > 80*25 )
+ return -1;
+
+ ret = write( ts->ofd, s, n );
+
+ return ret;
+}
+
+//print data to terminal starting from x,y
+int term_print_xy( term_screen *ts, const char *buf, size_t size,
+ int init_column, int init_row )
+{
+ int ret=-1;
+ if ( buf == NULL )
+ {
+ return -1;
+ }
+
+ if ( size <= 0 )
+ {
+ return -1;
+ }
+
+ switch ( ts->mode )
+ {
+ case SCREEN_MODE_80x25:
+ {
+
+ }
+ break;
+ default:
+ printf("Unknown mode\n");
+ }
+
+ return ret;
+}
+
+int term_draw_hline( term_screen *ts, int pc, int pr, const int sz, char ch)
+{
+ int ret=0;
+ char buf[sz]; memset( buf, ch, sz );
+
+ if ( sz > 0)
+ {
+ term_cur_set_c( ts, pc );
+ term_cur_set_r( ts, pr );
+ write( ts->ofd, buf, sz );
+ } else
+ {
+ ret = -1;
+ }
+
+ return ret;
+}
+
+//read one character from stream
+int term_getc( term_screen *ts )
+{
+ int ret=-1;
+ int fret=-1;
+ char buf;
+
+ fret = read( ts->ifd, &buf, 1 );
+ if ( fret == 1 )
+ {
+ ret = buf;
+ }
+ return ret;
+}
+
+int64_t term_getb( term_screen *ts )
+{
+ int64_t ret = -1;
+ int fret = -1;
+ unsigned char buf[8];
+
+ fret = read( ts->ifd, buf, 8 );
+ if ( fret == 1 )
+ {
+ //printf("1\n");
+
+ ret = buf[0];
+ } else if ( fret == 2 )
+ {
+ uint32_t a1 = buf[0]&0xff;
+ uint32_t a2 = buf[1]&0xff;
+ uint32_t r = 0x0;
+
+ r = (a1+((a2<<8)&0xff));
+
+ ret = r;
+
+ } else if ( fret == 3 )
+ {
+ uint32_t a1 = buf[0]&0xff;
+ uint32_t a2 = buf[1]&0xff;
+ uint32_t a3 = buf[2]&0xff;
+ uint32_t r=0x0;
+
+ //printf("3\n");
+
+ r = (a1+((a2<<8)&0xFF00)+((a3<<16)&0xFF0000));
+
+ ret = r;
+ } else if ( fret == 4)
+ {
+ uint32_t a1 = buf[0]&0xff;
+ uint32_t a2 = buf[1]&0xff;
+ uint32_t a3 = buf[2]&0xff;
+ uint32_t a4 = buf[3]&0xff;
+ uint32_t r=0x0;
+
+ //printf("4\n");
+
+ r = (a1+((a2<<8)&0xFF00)+((a3<<16)&0xFF0000)+((a4<<24)&(0xFF000000)));
+
+ ret = r;
+ } else if ( fret == 5 )
+ {
+ uint64_t a1 = buf[0]&0xff;
+ uint64_t a2 = buf[1]&0xff;
+ uint64_t a3 = buf[2]&0xff;
+ uint64_t a4 = buf[3]&0xff;
+ uint64_t a5 = buf[4]&0xff;
+ uint64_t r=0x0;
+
+ //printf("5 %02x %02x %02x %02x %02x\n",a1,a2,a3,a4,a5);
+
+ r = (a1+
+ ((a2<<8)&0xFF00)+
+ ((a3<<16)&0xFF0000)+
+ ((a4<<24)&0xFF000000)+
+ ((a5<<32)&0xFF00000000));
+
+ ret = r;
+ } else
+ {
+ int i;
+ for (i=0;i<fret;i++)
+ printf("!%02x",buf[fret-i-1]);
+ printf(" ![%d]",fret);
+ ret = 0;
+ }
+
+
+ return ret;
+}
+
+int term_putc( term_screen *ts, char c )
+{
+ int ret = 0;
+ int fret = -1;
+
+ fret = write( ts->ofd, &c, 1 );
+ if ( fret != 1 )
+ {
+ ret = -1;
+ }
+
+ return ret;
+}
+
+//return amoutn fo characters readed
+//on error or if nothing is imputed 0 returned
+int term_readline( term_screen *ts, char *str, size_t str_size, int flag )
+{
+ int ret = 0;
+ int max_row, max_column;
+ char *buf = NULL;
+ int buf_size = str_size-1;
+ int buf_curent = 0;
+ int menu_input=0;
+ char menu_cmd = 0;
+ int orig_row;
+ int orig_col;
+
+ buf = malloc( buf_size );
+ memset( buf, 0, buf_size );
+
+ max_row = term_get_maxrow( ts );
+ max_column = term_get_maxcol( ts );
+ orig_row = term_cur_get_r( ts );
+ orig_col = term_cur_get_c( ts );
+
+ menu_cmd = 0;
+ buf_curent = 0;
+ //finsih when escape button is setted
+ while ( menu_cmd != TK_ESC )
+ {
+ menu_input = term_getc( ts );
+ if ( menu_input != -1 )
+ {
+ menu_cmd = (char)menu_input;
+ //add to buffer any printable alpahnumeric char
+ if ( isalpha( menu_cmd ) &&
+ (flag == READLINE_TEXT || flag == READLINE_ALPHA
+ || flag == READLINE_HIDDEN) )
+ {
+ if ( buf_curent < buf_size )
+ {
+ buf[ buf_curent ] = menu_cmd;
+ buf_curent += 1;
+ }
+ //add to buffer number 0-9
+ } else if ( isdigit( menu_cmd ) &&
+ ( flag == READLINE_TEXT || flag == READLINE_NUMBER
+ || flag == READLINE_HIDDEN ))
+ {
+ if ( buf_curent < buf_size )
+ {
+ buf[ buf_curent ] = menu_cmd;
+ buf_curent += 1;
+ }
+ //if space allowed
+ } else if ( (menu_cmd == ' ') && (flag == READLINE_TEXT) )
+ {
+ if ( buf_curent < buf_size )
+ {
+ buf[ buf_curent ] = menu_cmd;
+ buf_curent += 1;
+ }
+ //remaining printable chars for READLINE_TEXT
+ } else if ( ispunct( menu_cmd ) &&
+ (flag == READLINE_TEXT ))
+ {
+ if ( buf_curent < buf_size )
+ {
+ buf[ buf_curent ] = menu_cmd;
+ buf_curent += 1;
+ }
+ //deleteone char from buffer with backspace
+ } else if ( menu_cmd == TK_BACKSPACE )
+ {
+ if ( buf_curent > 0)
+ {
+ buf[ buf_curent ] = 0x0;
+ buf_curent -= 1;
+ }
+ //input ready lets finish input
+ } else if ( menu_cmd == TK_ENTER )
+ {
+ ret = buf_curent;
+ memcpy( str, buf, buf_size );
+ str[ str_size-1 ] = 0x0;
+ break;
+ //finsih input without saving result
+ } else if ( menu_cmd == TK_ESC )
+ {
+ ret = -1;
+ }
+
+ {
+ int i;
+ term_cur_set_r( ts, orig_row );
+ term_cur_set_c( ts, orig_col );
+ for (i=0;i<buf_size;i++)
+ {
+ if ( i < buf_curent )
+ {
+ if ( (flag == READLINE_TEXT) || (flag == READLINE_ALPHA)
+ || (flag == READLINE_NUMBER) )
+ {
+ term_putc( ts, buf[i] );
+ } else if ( flag == READLINE_HIDDEN )
+ {
+ term_putc( ts, '*');
+ }
+ } else
+ {
+ term_putc( ts, ' ' );
+ }
+ }
+ term_cur_set_c( ts, orig_col+buf_curent );
+ term_cur_set_r( ts, orig_row );
+ }
+ }
+ }
+
+ if ( buf != NULL)
+ {
+ free( buf );
+ buf = NULL;
+ }
+
+ return ret;
+}
+
+//this is to replace printf,flush code
+int term_printf( term_screen *ts, const char *format, ...)
+{
+ int ret=0;
+
+ va_list args;
+ va_start(args, format);
+
+ vdprintf(ts->ofd, format, args);
+
+ va_end(args);
+
+ return ret;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2025-10-31 06:56:02 +0000