Check in ext2ed version 0.1

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