diff options
Diffstat (limited to 'ext2ed/win.c')
| -rw-r--r-- | ext2ed/win.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/ext2ed/win.c b/ext2ed/win.c new file mode 100644 index 00000000..09ee22dd --- /dev/null +++ b/ext2ed/win.c @@ -0,0 +1,169 @@ +/* + +/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 + +Copyright (C) 1995 Gadi Oxman + +*/ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "ext2ed.h" + +struct struct_pad_info show_pad_info; +WINDOW *title_win,*show_win,*command_win,*show_pad; + +void init_windows (void) + +{ + char title_string [80]; + + initscr (); + + 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); + 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); + } + + box (title_win,0,0); + sprintf (title_string,"EXT2ED - Extended-2 File System editor ver %d.%d (%s)",version_major,version_minor,revision_date); + wmove (title_win,TITLE_WIN_LINES/2,(COLS-strlen (title_string))/2); + wprintw (title_win,title_string); + +#ifdef OLD_NCURSES + wattrset (show_win,A_NORMAL);werase (show_win); +#else + wbkgdset (show_win,A_REVERSE);werase (show_win); +#endif + 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; + + scrollok (command_win,TRUE); + + refresh_title_win ();refresh_show_win ();refresh_show_pad ();refresh_command_win (); +} + +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 (); + + 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) + +{ + close_windows (); + init_windows (); + + wmove (command_win,0,0); + mvcur (-1,-1,LINES-COMMAND_WIN_LINES,0); + +}
\ No newline at end of file |