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/*
/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 <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 ();
}
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