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Diffstat (limited to 'ext2ed/win.c')
| -rw-r--r-- | ext2ed/win.c | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/ext2ed/win.c b/ext2ed/win.c new file mode 100644 index 0000000..23d0da1 --- /dev/null +++ b/ext2ed/win.c @@ -0,0 +1,232 @@ +/* + +/usr/src/ext2ed/win.c + +A part of the extended file system 2 disk editor. + +-------------------------------------------------------- +Window management - Interfacing with the ncurses library +-------------------------------------------------------- + +First written on: April 17 1995 +Modified on : April 05 2001 Christian.Bac@int-evry.fr +it looks like readline does not like that initscr decides to set the tty to +noecho. + +Copyright (C) 1995 Gadi Oxman + +*/ + +#include "config.h" +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <termios.h> +#include <unistd.h> +#include <sys/ioctl.h> + +#include "ext2ed.h" +#include "../version.h" + +struct struct_pad_info show_pad_info; +WINDOW *title_win,*show_win,*command_win,*mt_win1,*mt_win2,*show_pad; + +/* to remember configuration after initscr + * and modify it + */ +struct termios termioInit, termioCurrent; + +void draw_title_win (void) +{ + char title_string [128]; + + werase(title_win); + box (title_win,0,0); + sprintf (title_string,"EXT2ED - Extended-2 File System editor ver %s (%s)", E2FSPROGS_VERSION, E2FSPROGS_DATE); + wmove (title_win,TITLE_WIN_LINES/2,(COLS-strlen (title_string))/2); + wprintw (title_win,title_string); + wrefresh(title_win); +} + +void setup_show_win(void) +{ + wbkgdset (show_win,A_REVERSE);werase (show_win); + show_pad_info.line=0; + show_pad_info.col=0; + show_pad_info.display_lines=LINES-TITLE_WIN_LINES-SHOW_WIN_LINES-COMMAND_WIN_LINES-2; + show_pad_info.display_cols=COLS; + show_pad_info.max_line=show_pad_info.display_lines-1;show_pad_info.max_col=show_pad_info.display_cols-1; + show_pad_info.disable_output=0; +} + +void init_windows (void) +{ + initscr (); + tcgetattr(0,&termioInit); /* save initial config */ + termioCurrent = termioInit; + termioCurrent.c_lflag |= ECHO; /* set echo on */ + tcsetattr(0,TCSANOW,&termioCurrent); + + if (LINES<TITLE_WIN_LINES+SHOW_WIN_LINES+COMMAND_WIN_LINES+3) { + printf ("Sorry, your terminal screen is too small\n"); + printf ("Error - Can not initialize windows\n"); + exit (1); + } + + title_win=newwin (TITLE_WIN_LINES,COLS,0,0); + show_win=newwin (SHOW_WIN_LINES,COLS,TITLE_WIN_LINES,0); + show_pad=newpad (SHOW_PAD_LINES,SHOW_PAD_COLS); + mt_win1=newwin (1,COLS,TITLE_WIN_LINES+SHOW_WIN_LINES,0); + mt_win2=newwin (1,COLS,LINES-COMMAND_WIN_LINES-1,0); + command_win=newwin (COMMAND_WIN_LINES,COLS,LINES-COMMAND_WIN_LINES,0); + + if (title_win==NULL || show_win==NULL || show_pad==NULL || command_win==NULL) { + printf ("Error - Not enough memory - Can not initialize windows\n");exit (1); + } + + draw_title_win(); + + setup_show_win(); + + scrollok (command_win,TRUE); + + refresh_title_win (); + refresh_show_win (); + refresh_show_pad(); + refresh_command_win (); + wrefresh(mt_win1); + wrefresh(mt_win2); +} + +void refresh_title_win (void) +{ + wrefresh (title_win); +} + +void refresh_show_win (void) +{ + int current_page,total_pages; + + current_page=show_pad_info.line/show_pad_info.display_lines+1; + if (show_pad_info.line%show_pad_info.display_lines) + current_page++; + total_pages=show_pad_info.max_line/show_pad_info.display_lines+1; + + wmove (show_win,2,COLS-18); + wprintw (show_win,"Page %d of %d\n",current_page,total_pages); + + wmove (show_win,2,COLS-18); + wrefresh (show_win); +} + + +void refresh_show_pad (void) + +{ + int left,top,right,bottom,i; + + if (show_pad_info.disable_output) + return; + + if (show_pad_info.max_line < show_pad_info.display_lines-1) { + for (i=show_pad_info.max_line+1;i<show_pad_info.display_lines;i++) { + wmove (show_pad,i,0);wprintw (show_pad,"\n"); + } + } + left=0;right=show_pad_info.display_cols-1; + top=TITLE_WIN_LINES+SHOW_WIN_LINES+1;bottom=top+show_pad_info.display_lines-1; + + if (show_pad_info.line > show_pad_info.max_line-show_pad_info.display_lines+1) + show_pad_info.line=show_pad_info.max_line-show_pad_info.display_lines+1; + + if (show_pad_info.line < 0) + show_pad_info.line=0; + +#ifdef OLD_NCURSES + prefresh (show_pad,show_pad_info.line,show_pad_info.col,top,left,show_pad_info.display_lines-1,show_pad_info.display_cols-1); +#else + prefresh (show_pad,show_pad_info.line,show_pad_info.col,top,left,top+show_pad_info.display_lines-1,left+show_pad_info.display_cols-1); +#endif +} + +void refresh_command_win (void) +{ + wrefresh (command_win); +} + +void close_windows (void) +{ +// echo (); + tcsetattr(0,TCSANOW,&termioInit); + + delwin (title_win); + delwin (command_win); + delwin (show_win); + delwin (show_pad); + + endwin (); +} + +void show_info (void) +{ + int block_num,block_offset; + + block_num=device_offset/file_system_info.block_size; + block_offset=device_offset%file_system_info.block_size; + + wmove (show_win,0,0); + wprintw (show_win,"Offset %-3ld in block %ld. ",block_offset,block_num); + if (current_type != NULL) + wprintw (show_win,"Type: %s\n",current_type->name); + else + wprintw (show_win,"Type: %s\n","none"); + + refresh_show_win (); +} + + +void redraw_all (void) +{ + int min_lines = TITLE_WIN_LINES+SHOW_WIN_LINES+COMMAND_WIN_LINES+3; + struct winsize ws; + int save_col, save_lines; + + /* get the size of the terminal connected to stdout */ + ioctl(1, TIOCGWINSZ, &ws); + /* + * Do it again because GDB doesn't stop before the first ioctl + * call, we want an up-to-date size when we're + * single-stepping. + */ + if (ioctl(1, TIOCGWINSZ, &ws) == 0) { + if (ws.ws_row < min_lines) + ws.ws_row = min_lines; + if ((ws.ws_row != LINES) || (ws.ws_col != COLS)) { + wmove (show_win,2,COLS-18); + wclrtoeol(show_win); + wrefresh(show_win); + resizeterm(ws.ws_row, ws.ws_col); + wresize(title_win, TITLE_WIN_LINES,COLS); + wresize(show_win, SHOW_WIN_LINES,COLS); + wresize(command_win, COMMAND_WIN_LINES,COLS); + wresize(mt_win1, 1,COLS); + wresize(mt_win2, 1,COLS); + mvwin(mt_win2, LINES-COMMAND_WIN_LINES-1,0); + mvwin(command_win, LINES-COMMAND_WIN_LINES,0); + draw_title_win(); + show_pad_info.display_lines=LINES-TITLE_WIN_LINES-SHOW_WIN_LINES-COMMAND_WIN_LINES-2; + show_pad_info.display_cols=COLS; + } + } + clearok(title_win, 1); + clearok(show_win, 1); + clearok(command_win, 1); + clearok(mt_win1, 1); + clearok(mt_win2, 1); + wrefresh(mt_win1); + wrefresh(mt_win2); + refresh_show_pad(); + refresh_show_win(); + refresh_title_win (); + refresh_command_win (); +} |