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nano/winio.c
Robert Siemborski ea19c7369f fix for the totsize / cut bug 
git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@16 35c25a1d-7b9e-4130-9fde-d3aeb78583b8
2000-06-09 00:52:26 +00:00

1238 lines
28 KiB
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/**************************************************************************
* winio.c *
* *
* Copyright (C) 1999 Chris Allegretta *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 1, or (at your option) *
* any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software *
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *
* *
**************************************************************************/
#include <stdarg.h>
#include <string.h>
#include "config.h"
#include "proto.h"
#include "nano.h"
#ifndef NANO_SMALL
#include <libintl.h>
#define _(string) gettext(string)
#else
#define _(string) (string)
#endif
static int statblank = 0; /* Number of keystrokes left after
we call statubar() before we
actually blank the statusbar */
/* Local Function Prototypes for only winio.c */
inline int get_page_from_virtual(int virtual);
inline int get_page_start_virtual(int page);
inline int get_page_end_virtual(int page);
/* Window I/O */
int do_first_line(void)
{
current = fileage;
placewewant = 0;
current_x = 0;
edit_update(current);
return 1;
}
int do_last_line(void)
{
current = filebot;
placewewant = 0;
current_x = 0;
edit_update(current);
return 1;
}
/* Like xplustabs, but for a specifc index of a speficific filestruct */
int xpt(filestruct * fileptr, int index)
{
int i, tabs = 0;
if (fileptr == NULL || fileptr->data == NULL)
return 0;
for (i = 0; i < index && fileptr->data[i] != 0; i++) {
tabs++;
if (fileptr->data[i] == NANO_CONTROL_I) {
if (tabs % 8 == 0);
else
tabs += 8 - (tabs % 8);
} else if (fileptr->data[i] & 0x80)
/* Make 8 bit chars only 1 collumn! */
;
else if (fileptr->data[i] < 32)
tabs++;
}
return tabs;
}
/* Return the actual place on the screen of current->data[current_x], which
should always be > current_x */
int xplustabs(void)
{
return xpt(current, current_x);
}
/* Return what current_x should be, given xplustabs() for the line,
* given a start position in the filestruct's data */
int actual_x_from_start(filestruct * fileptr, int xplus, int start)
{
int i, tot = 1;
if (fileptr == NULL || fileptr->data == NULL)
return 0;
for (i = start; tot <= xplus && fileptr->data[i] != 0; i++,tot++)
if (fileptr->data[i] == NANO_CONTROL_I) {
if (tot % 8 == 0) tot++;
else tot += 8 - (tot % 8);
} else if (fileptr->data[i] & 0x80)
tot++; /* Make 8 bit chars only 1 column (again) */
else if (fileptr->data[i] < 32)
tot += 2;
#ifdef DEBUG
fprintf(stderr, _("actual_x for xplus=%d returned %d\n"), xplus, i);
#endif
return i - start;
}
/* Opposite of xplustabs */
inline int actual_x(filestruct * fileptr, int xplus)
{
return actual_x_from_start(fileptr, xplus, 0);
}
/* a strlen with tabs factored in, similar to xplustabs() */
int strlenpt(char *buf)
{
int i, tabs = 0;
if (buf == NULL)
return 0;
for (i = 0; buf[i] != 0; i++) {
tabs++;
if (buf[i] == NANO_CONTROL_I) {
if (tabs % 8 == 0);
else
tabs += 8 - (tabs % 8);
} else if (buf[i] & 0x80)
/* Make 8 bit chars only 1 collumn! */
;
else if (buf[i] < 32)
tabs++;
}
return tabs;
}
/* resets current_y based on the position of current and puts the cursor at
(current_y, current_x) */
void reset_cursor(void)
{
filestruct *ptr = edittop;
int x;
current_y = 0;
while (ptr != current && ptr != editbot && ptr->next != NULL) {
ptr = ptr->next;
current_y++;
}
x = xplustabs();
if (x <= COLS - 2)
wmove(edit, current_y, x);
else
wmove(edit, current_y, x -
get_page_start_virtual(get_page_from_virtual(x)));
}
void blank_bottombars(void)
{
int i = no_help()? 3 : 1;
for (; i <= 2; i++)
mvwaddstr(bottomwin, i, 0, hblank);
}
void blank_edit(void)
{
int i;
for (i = 0; i <= editwinrows - 1; i++)
mvwaddstr(edit, i, 0, hblank);
wrefresh(edit);
}
void blank_statusbar(void)
{
mvwaddstr(bottomwin, 0, 0, hblank);
}
void blank_statusbar_refresh(void)
{
blank_statusbar();
wrefresh(bottomwin);
}
void check_statblank(void)
{
if (statblank > 1)
statblank--;
else if (statblank == 1 && !ISSET(CONSTUPDATE)) {
statblank--;
blank_statusbar_refresh();
}
}
/* Get the input from the kb, this should only be called from statusq */
int nanogetstr(char *buf, char *def, shortcut s[], int slen, int start_x)
{
int kbinput = 0, j = 0, x = 0, xend;
int x_left = 0;
char inputstr[132], inputbuf[132] = "";
blank_statusbar();
mvwaddstr(bottomwin, 0, 0, buf);
if (strlen(def) > 0)
waddstr(bottomwin, def);
wrefresh(bottomwin);
x_left = strlen(buf);
x = strlen(def) + x_left;
/* Get the input! */
if (strlen(def) > 0) {
strcpy(answer, def);
strcpy(inputbuf, def);
}
/* Go into raw mode so we can actually get ^C, for example */
raw();
while ((kbinput = wgetch(bottomwin)) != 13) {
for (j = 0; j <= slen - 1; j++) {
if (kbinput == s[j].val) {
noraw();
cbreak();
strcpy(answer, "");
return s[j].val;
}
}
xend = strlen(buf) + strlen(inputbuf);
switch (kbinput) {
case KEY_HOME:
x = x_left;
blank_statusbar();
mvwaddstr(bottomwin, 0, 0, buf);
waddstr(bottomwin, inputbuf);
wmove(bottomwin, 0, x);
break;
case KEY_END:
x = x_left + strlen(inputbuf);
blank_statusbar();
mvwaddstr(bottomwin, 0, 0, buf);
waddstr(bottomwin, inputbuf);
wmove(bottomwin, 0, x);
break;
case KEY_RIGHT:
if (x < xend)
x++;
wmove(bottomwin, 0, x);
break;
case NANO_CONTROL_D:
if (strlen(inputbuf) > 0 && (x - x_left) != strlen(inputbuf)) {
memmove(inputbuf + (x - x_left),
inputbuf + (x - x_left) + 1,
strlen(inputbuf) - (x - x_left) - 1);
inputbuf[strlen(inputbuf) - 1] = 0;
}
blank_statusbar();
mvwaddstr(bottomwin, 0, 0, buf);
waddstr(bottomwin, inputbuf);
wmove(bottomwin, 0, x);
break;
case NANO_CONTROL_K:
case NANO_CONTROL_U:
*inputbuf = 0;
x = x_left;
blank_statusbar();
mvwaddstr(bottomwin, 0, 0, buf);
waddstr(bottomwin, inputbuf);
wmove(bottomwin, 0, x);
break;
case KEY_BACKSPACE:
case KEY_DC:
case 127:
case NANO_CONTROL_H:
if (strlen(inputbuf) > 0) {
if (x == (x_left + strlen(inputbuf)))
inputbuf[strlen(inputbuf) - 1] = 0;
else if (x - x_left) {
memmove(inputbuf + (x - x_left) - 1,
inputbuf + (x - x_left),
strlen(inputbuf) - (x - x_left));
inputbuf[strlen(inputbuf) - 1] = 0;
}
}
blank_statusbar();
mvwaddstr(bottomwin, 0, 0, buf);
waddstr(bottomwin, inputbuf);
case KEY_LEFT:
if (x > strlen(buf))
x--;
wmove(bottomwin, 0, x);
break;
case KEY_UP:
case KEY_DOWN:
break;
case 27:
switch (kbinput = wgetch(edit)) {
case 79:
switch (kbinput = wgetch(edit)) {
case 70:
x = x_left + strlen(inputbuf);
blank_statusbar();
mvwaddstr(bottomwin, 0, 0, buf);
waddstr(bottomwin, inputbuf);
wmove(bottomwin, 0, x);
break;
case 72:
x = x_left;
blank_statusbar();
mvwaddstr(bottomwin, 0, 0, buf);
waddstr(bottomwin, inputbuf);
wmove(bottomwin, 0, x);
break;
}
break;
case 91:
switch (kbinput = wgetch(edit)) {
case 'C':
if (x < xend)
x++;
wmove(bottomwin, 0, x);
break;
case 'D':
if (x > strlen(buf))
x--;
wmove(bottomwin, 0, x);
break;
case 49:
x = x_left;
blank_statusbar();
mvwaddstr(bottomwin, 0, 0, buf);
waddstr(bottomwin, inputbuf);
wmove(bottomwin, 0, x);
goto skip_126;
case 51:
if (strlen(inputbuf) > 0
&& (x - x_left) != strlen(inputbuf)) {
memmove(inputbuf + (x - x_left),
inputbuf + (x - x_left) + 1,
strlen(inputbuf) - (x - x_left) - 1);
inputbuf[strlen(inputbuf) - 1] = 0;
}
blank_statusbar();
mvwaddstr(bottomwin, 0, 0, buf);
waddstr(bottomwin, inputbuf);
wmove(bottomwin, 0, x);
goto skip_126;
case 52:
x = x_left + strlen(inputbuf);
blank_statusbar();
mvwaddstr(bottomwin, 0, 0, buf);
waddstr(bottomwin, inputbuf);
wmove(bottomwin, 0, x);
goto skip_126;
skip_126:
nodelay(edit, TRUE);
kbinput = wgetch(edit);
if (kbinput == 126 || kbinput == ERR)
kbinput = -1;
nodelay(edit, FALSE);
break;
}
}
blank_statusbar();
mvwaddstr(bottomwin, 0, 0, buf);
waddstr(bottomwin, inputbuf);
wmove(bottomwin, 0, x);
break;
default:
if (kbinput < 32)
break;
strcpy(inputstr, inputbuf);
inputstr[x - strlen(buf)] = kbinput;
strcpy(&inputstr[x - strlen(buf) + 1],
&inputbuf[x - strlen(buf)]);
strcpy(inputbuf, inputstr);
x++;
mvwaddstr(bottomwin, 0, 0, buf);
waddstr(bottomwin, inputbuf);
wmove(bottomwin, 0, x);
#ifdef DEBUG
fprintf(stderr, _("input \'%c\' (%d)\n"), kbinput, kbinput);
#endif
}
wrefresh(bottomwin);
}
strncpy(answer, inputbuf, 132);
noraw();
cbreak();
if (!strcmp(answer, ""))
return -2;
else
return 0;
}
void horizbar(WINDOW * win, int y)
{
wattron(win, A_REVERSE);
mvwaddstr(win, 0, 0, hblank);
wattroff(win, A_REVERSE);
}
void titlebar(void)
{
int namelen, space;
horizbar(topwin, 0);
wattron(topwin, A_REVERSE);
mvwaddstr(topwin, 0, 3, VERMSG);
space = COLS - strlen(VERMSG) - strlen(VERSION) - 21;
namelen = strlen(filename);
if (!strcmp(filename, ""))
mvwaddstr(topwin, 0, center_x - 6, _("New Buffer"));
else {
if (namelen > space) {
waddstr(topwin, _(" File: ..."));
waddstr(topwin, &filename[namelen - space]);
} else {
mvwaddstr(topwin, 0, center_x - (namelen / 2 + 1), "File: ");
waddstr(topwin, filename);
}
}
if (ISSET(MODIFIED))
mvwaddstr(topwin, 0, COLS - 10, _("Modified"));
wattroff(topwin, A_REVERSE);
wrefresh(topwin);
reset_cursor();
}
void onekey(char *keystroke, char *desc)
{
char description[80];
snprintf(description, 12, " %-11s", desc);
wattron(bottomwin, A_REVERSE);
waddstr(bottomwin, keystroke);
wattroff(bottomwin, A_REVERSE);
waddstr(bottomwin, description);
}
void clear_bottomwin(void)
{
if (ISSET(NO_HELP))
return;
mvwaddstr(bottomwin, 1, 0, hblank);
mvwaddstr(bottomwin, 2, 0, hblank);
wrefresh(bottomwin);
}
void bottombars(shortcut s[], int slen)
{
int i, j, k;
char keystr[10];
if (ISSET(NO_HELP))
return;
/* Determine how many extra spaces are needed to fill the bottom of the screen */
k = COLS / 6 - 13;
clear_bottomwin();
wmove(bottomwin, 1, 0);
for (i = 0; i <= slen - 1; i += 2) {
sprintf(keystr, "^%c", s[i].val + 64);
onekey(keystr, s[i].desc);
for (j = 0; j < k; j++)
waddch(bottomwin, ' ');
}
wmove(bottomwin, 2, 0);
for (i = 1; i <= slen - 1; i += 2) {
sprintf(keystr, "^%c", s[i].val + 64);
onekey(keystr, s[i].desc);
for (j = 0; j < k; j++)
waddch(bottomwin, ' ');
}
wrefresh(bottomwin);
}
/* If modified is not already set, set it and update titlebar */
void set_modified(void)
{
if (!ISSET(MODIFIED)) {
SET(MODIFIED);
titlebar();
wrefresh(topwin);
}
}
inline int get_page_from_virtual(int virtual) {
int page = 2;
if(virtual <= COLS - 2) return 1;
virtual -= (COLS - 2);
while (virtual > COLS - 2 - 7) {
virtual -= (COLS - 2 - 7);
page++;
}
return page;
}
inline int get_page_start_virtual(int page) {
int virtual;
virtual = --page * (COLS - 7);
if(page) virtual -= 2 * page - 1;
return virtual;
}
inline int get_page_end_virtual(int page) {
return get_page_start_virtual(page) + COLS - 1;
}
#ifndef NANO_SMALL
/* begin, end: beginning and end of mark in data
* fileptr: the data
* y: the line on screen */
void add_marked_sameline(int begin, int end, filestruct *fileptr, int y)
{
/* where we are on the line */
int virtual_col = xplustabs();
/* actual_col is beginning of the line in the data */
int this_page = get_page_from_virtual(virtual_col),
this_page_start = get_page_start_virtual(this_page),
this_page_end = get_page_end_virtual(this_page),
actual_col = actual_x(fileptr, this_page_start);
/* 3 start points: 0 -> begin, begin->end, end->strlen(data) */
/* in data : pre sel post */
int virtual_sel_start = xpt(fileptr, begin),
sel_start = 0,
virtual_post_start = xpt(fileptr, end),
post_start = 0;
/* likewise, 3 data lengths */
int pre_data_len = begin,
sel_data_len = end - begin,
post_data_len = 0;
/* now fix the start locations & lengths according to the cursor's
* position (ie: our page) */
if(xpt(fileptr,pre_data_len) < this_page_start) pre_data_len = 0;
else pre_data_len -= actual_col;
if(virtual_sel_start < this_page_start) {
begin = actual_col;
virtual_sel_start = this_page_start;
}
if(virtual_post_start < this_page_start) {
end = actual_col;
virtual_post_start = this_page_start;
}
/* we don't care about end, because it will just get cropped
* due to length */
if(virtual_sel_start > this_page_end)
virtual_sel_start = this_page_end;
if(virtual_post_start > this_page_end)
virtual_post_start = this_page_end;
sel_data_len = actual_x(fileptr, virtual_post_start) -
actual_x(fileptr, virtual_sel_start);
post_data_len = actual_x(fileptr, this_page_end) -
actual_x(fileptr, virtual_post_start);
sel_start = virtual_sel_start - this_page_start;
post_start = virtual_post_start - this_page_start;
mvwaddnstr(edit, y, 0, &fileptr->data[actual_col], pre_data_len);
wattron(edit, A_REVERSE);
mvwaddnstr(edit, y, sel_start, &fileptr->data[begin], sel_data_len);
wattroff(edit, A_REVERSE);
mvwaddnstr(edit, y, post_start, &fileptr->data[end], post_data_len);
}
#endif
/* we used to have xval. turns out it should always be zero */
void edit_add(filestruct * fileptr, int yval, int start)
{
#ifndef NANO_SMALL
int col;
if (ISSET(MARK_ISSET)) {
/* Our horribly ugly marker code */
if ((fileptr->lineno > mark_beginbuf->lineno
&& fileptr->lineno > current->lineno)
|| (fileptr->lineno < mark_beginbuf->lineno
&& fileptr->lineno < current->lineno)) {
/* We're on a normal, unselected line */
mvwaddnstr(edit, yval, 0, fileptr->data,
actual_x(fileptr, COLS));
} else {
/* We're on selected text */
if (fileptr != mark_beginbuf && fileptr != current) {
wattron(edit, A_REVERSE);
mvwaddnstr(edit, yval, 0, fileptr->data, actual_x(fileptr,COLS));
wattroff(edit, A_REVERSE);
}
/* Special case, we're still on the same line we started marking */
else if (fileptr == mark_beginbuf && fileptr == current) {
if (current_x < mark_beginx)
add_marked_sameline(current_x, mark_beginx, fileptr, yval);
else
add_marked_sameline(mark_beginx, current_x, fileptr, yval);
} else if (fileptr == mark_beginbuf) {
int target;
/* we're at the line that was first marked */
if (mark_beginbuf->lineno > current->lineno)
wattron(edit, A_REVERSE);
target = (xpt(fileptr,mark_beginx) < COLS - 1) ? mark_beginx : COLS - 1;
mvwaddnstr(edit, yval, 0, fileptr->data,
actual_x(fileptr, target));
if (mark_beginbuf->lineno < current->lineno)
wattron(edit, A_REVERSE);
else
wattroff(edit, A_REVERSE);
target = (COLS - 1) - xpt(fileptr,mark_beginx);
if(target < 0) target = 0;
mvwaddnstr(edit, yval, xpt(fileptr,mark_beginx),
&fileptr->data[mark_beginx],
actual_x_from_start(fileptr, target, mark_beginx));
if (mark_beginbuf->lineno < current->lineno)
wattroff(edit, A_REVERSE);
} else if (fileptr == current) {
/* we're on the cursors line, but it's not the first
* one we marked... */
int this_page = get_page_from_virtual(xplustabs()),
this_page_start = get_page_start_virtual(this_page),
this_page_end = get_page_end_virtual(this_page);
if (mark_beginbuf->lineno < current->lineno)
wattron(edit, A_REVERSE);
if (xplustabs() > COLS - 2) {
col = actual_x(current, this_page_start);
mvwaddnstr(edit, yval, 0, &fileptr->data[col],
current_x - col);
} else
mvwaddnstr(edit, yval, 0, fileptr->data, current_x);
if (mark_beginbuf->lineno > current->lineno)
wattron(edit, A_REVERSE);
else
wattroff(edit, A_REVERSE);
if (xplustabs() > COLS - 2) {
mvwaddnstr(edit, yval, xplustabs() - this_page_start,
&fileptr->data[current_x],
actual_x(current,this_page_end) - current_x);
} else
mvwaddnstr(edit, yval, xplustabs(),
&fileptr->data[current_x],
actual_x_from_start(fileptr,
COLS - xpt(fileptr,current_x), current_x));
if (mark_beginbuf->lineno > current->lineno)
wattroff(edit, A_REVERSE);
}
}
} else
#endif
mvwaddnstr(edit, yval, 0, &fileptr->data[start],
actual_x_from_start(fileptr,COLS,start));
}
/*
* Just update one line in the edit buffer
*
* index gives is a place in the string to update starting from.
* Likely args are current_x or 0.
*/
void update_line(filestruct * fileptr, int index)
{
filestruct *filetmp;
int line = 0, col = 0, actual_col = 0, x;
for (filetmp = edittop; filetmp != fileptr && filetmp != editbot;
filetmp = filetmp->next)
line++;
mvwaddstr(edit, line, 0, hblank);
if (current == fileptr && (x = xpt(current, index)) > COLS - 2) {
int page = get_page_from_virtual(x);
col = get_page_start_virtual(page);
actual_col = actual_x(filetmp, col);
edit_add(filetmp, line, actual_col);
mvwaddch(edit, line, 0, '$');
if (strlenpt(fileptr->data) > get_page_end_virtual(page))
mvwaddch(edit, line, COLS - 1, '$');
} else {
edit_add(filetmp, line, 0);
if (strlenpt(&filetmp->data[actual_col]) > COLS)
mvwaddch(edit, line, COLS - 1, '$');
}
}
void center_cursor(void)
{
current_y = editwinrows / 2;
wmove(edit, current_y, current_x);
}
/* Refresh the screen without changing the position of lines */
void edit_refresh(void)
{
int lines = 0, i = 0;
filestruct *temp, *hold = current;
if (current == NULL)
return;
temp = edittop;
while (lines <= editwinrows - 1 && lines <= totlines && temp != NULL) {
hold = temp;
update_line(temp, current_x);
temp = temp->next;
lines++;
}
if (lines <= editwinrows - 1)
while (lines <= editwinrows - 1) {
mvwaddstr(edit, lines, i, hblank);
lines++;
}
if (temp == NULL)
editbot = hold;
else
editbot = temp;
}
/*
* Nice generic routine to update the edit buffer given a pointer to the
* file struct =)
*/
void edit_update(filestruct * fileptr)
{
int lines = 0, i = 0;
filestruct *temp;
if (fileptr == NULL)
return;
temp = fileptr;
while (i <= editwinrows / 2 && temp->prev != NULL) {
i++;
temp = temp->prev;
}
edittop = temp;
while (lines <= editwinrows - 1 && lines <= totlines && temp != NULL
&& temp != filebot) {
temp = temp->next;
lines++;
}
editbot = temp;
edit_refresh();
}
/* Now we want to update the screen using this struct as the top of the edit buffer */
void edit_update_top(filestruct * fileptr)
{
int i;
filestruct *temp = fileptr;
if (fileptr->next == NULL || fileptr == NULL)
return;
i = 0;
while (i <= editwinrows / 2 && temp->next != NULL) {
i++;
temp = temp->next;
}
edit_update(temp);
}
/* And also for the bottom... */
void edit_update_bot(filestruct * fileptr)
{
int i;
filestruct *temp = fileptr;
i = 0;
while (i <= editwinrows / 2 - 1 && temp->prev != NULL) {
i++;
temp = temp->prev;
}
edit_update(temp);
}
/* This function updates current based on where current_y is, reset_cursor
does the opposite */
void update_cursor(void)
{
int i = 0;
#ifdef DEBUG
fprintf(stderr, _("Moved to (%d, %d) in edit buffer\n"), current_y,
current_x);
#endif
current = edittop;
while (i <= current_y - 1 && current->next != NULL) {
current = current->next;
i++;
}
#ifdef DEBUG
fprintf(stderr, _("current->data = \"%s\"\n"), current->data);
#endif
}
/*
* Ask a question on the statusbar. Answer will be stored in answer
* global. Returns -1 on aborted enter, -2 on a blank string, and 0
* otherwise, the valid shortcut key caught, Def is any editable text we
* want to put up by default.
*/
int statusq(shortcut s[], int slen, char *def, char *msg, ...)
{
va_list ap;
char foo[133];
int ret;
bottombars(s, slen);
va_start(ap, msg);
vsnprintf(foo, 132, msg, ap);
strncat(foo, ": ", 132);
va_end(ap);
wattron(bottomwin, A_REVERSE);
ret = nanogetstr(foo, def, s, slen, (strlen(foo) + 3));
wattroff(bottomwin, A_REVERSE);
switch (ret) {
case NANO_FIRSTLINE_KEY:
do_first_line();
break;
case NANO_LASTLINE_KEY:
do_last_line();
break;
case NANO_CANCEL_KEY:
return -1;
default:
blank_statusbar_refresh();
}
#ifdef DEBUG
fprintf(stderr, _("I got \"%s\"\n"), answer);
#endif
return ret;
}
/*
* Ask a simple yes/no question on the statusbar. Returns 1 for Y, 0 for
* N, 2 for All (if all is non-zero when passed in) and -1 for abort (^C)
*/
int do_yesno(int all, int leavecursor, char *msg, ...)
{
va_list ap;
char foo[133];
int kbinput, ok = -1;
/* Write the bottom of the screen */
clear_bottomwin();
wattron(bottomwin, A_REVERSE);
blank_statusbar_refresh();
wattroff(bottomwin, A_REVERSE);
if (!ISSET(NO_HELP)) {
wmove(bottomwin, 1, 0);
onekey(_(" Y"), _("Yes"));
if (all)
onekey(_(" A"), _("All"));
wmove(bottomwin, 2, 0);
onekey(_(" N"), _("No"));
onekey(_("^C"), _("Cancel"));
}
va_start(ap, msg);
vsnprintf(foo, 132, msg, ap);
va_end(ap);
wattron(bottomwin, A_REVERSE);
mvwaddstr(bottomwin, 0, 0, foo);
wattroff(bottomwin, A_REVERSE);
wrefresh(bottomwin);
if (leavecursor == 1)
reset_cursor();
raw();
while (ok == -1) {
kbinput = wgetch(edit);
switch (kbinput) {
case 'Y':
case 'y':
ok = 1;
break;
case 'N':
case 'n':
ok = 0;
break;
case 'A':
case 'a':
if (all)
ok = 2;
break;
case NANO_CONTROL_C:
ok = -2;
break;
}
}
noraw();
cbreak();
/* Then blank the screen */
blank_statusbar_refresh();
if (ok == -2)
return -1;
else
return ok;
}
void statusbar(char *msg, ...)
{
va_list ap;
char foo[133];
int start_x = 0;
va_start(ap, msg);
vsnprintf(foo, 132, msg, ap);
va_end(ap);
start_x = center_x - strlen(foo) / 2 - 1;
/* Blank out line */
blank_statusbar();
wmove(bottomwin, 0, start_x);
wattron(bottomwin, A_REVERSE);
waddstr(bottomwin, "[ ");
waddstr(bottomwin, foo);
waddstr(bottomwin, " ]");
wattroff(bottomwin, A_REVERSE);
wrefresh(bottomwin);
if (ISSET(CONSTUPDATE))
statblank = 1;
else
statblank = 25;
}
void display_main_list(void)
{
bottombars(main_list, MAIN_VISIBLE);
}
int total_refresh(void)
{
display_main_list();
clearok(edit, TRUE);
clearok(topwin, TRUE);
clearok(bottomwin, TRUE);
wnoutrefresh(edit);
wnoutrefresh(topwin);
wnoutrefresh(bottomwin);
doupdate();
clearok(edit, FALSE);
clearok(topwin, FALSE);
clearok(bottomwin, FALSE);
return 1;
}
void previous_line(void)
{
if (current_y > 0)
current_y--;
}
int do_cursorpos(void)
{
filestruct *fileptr;
float linepct, bytepct;
int i, tot = 0;
if (current == NULL || fileage == NULL)
return 0;
for (fileptr = fileage; fileptr != current && fileptr != NULL; fileptr = fileptr->next)
tot += strlen(fileptr->data) + 1;
if (fileptr == NULL)
return -1;
i = tot + current_x;;
for (fileptr = current->next; fileptr != NULL; fileptr = fileptr->next)
tot += strlen(fileptr->data) + 1;
if (totlines > 0)
linepct = 100 * current->lineno / totlines;
else
linepct = 0;
if (totsize > 0)
bytepct = 100 * i / totsize;
else
bytepct = 0;
#ifdef DEBUG
fprintf(stderr, _("do_cursorpos: linepct = %f, bytepct = %f\n"),
linepct, bytepct);
#endif
statusbar(_("line %d of %d (%.0f%%), character %d of %d (%.0f%%)"),
current->lineno, totlines, linepct, i, totsize, bytepct);
reset_cursor();
return 1;
}
/* Our broken, non-shortcut list compliant help function.
But hey, it's better than nothing, and it's dynamic! */
int do_help(void)
{
#ifndef NANO_SMALL
char *ptr = help_text, *end;
int i, j, row = 0, page = 1, kbinput = 0, no_more = 0;
int no_help_flag = 0;
blank_edit();
curs_set(0);
blank_statusbar();
if (ISSET(NO_HELP)) {
no_help_flag = 1;
delwin (bottomwin);
bottomwin = newwin(3, COLS, LINES - 3, 0);
keypad(bottomwin, TRUE);
editwinrows -= no_help ();
UNSET(NO_HELP);
bottombars(help_list, HELP_LIST_LEN);
}
else
bottombars(help_list, HELP_LIST_LEN);
do {
ptr = help_text;
switch (kbinput) {
case NANO_NEXTPAGE_KEY:
case NANO_NEXTPAGE_FKEY:
case KEY_NPAGE:
if (!no_more) {
blank_edit();
page++;
}
break;
case NANO_PREVPAGE_KEY:
case NANO_PREVPAGE_FKEY:
case KEY_PPAGE:
if (page > 1) {
no_more = 0;
blank_edit();
page--;
}
break;
}
/* Calculate where in the text we should be based on the page */
for (i = 1; i < page; i++) {
row = 0;
j = 0;
while (row < editwinrows && *ptr != '\0') {
if (*ptr == '\n' || j == COLS - 5) {
j = 0;
row++;
}
ptr++;
j++;
}
}
i = 0;
j = 0;
while (i < editwinrows && *ptr != '\0') {
end = ptr;
while (*end != '\n' && *end != '\0' && j != COLS - 5) {
end++;
j++;
}
if (j == COLS - 5) {
/* Don't print half a word if we've run of of space */
while (*end != ' ' && *end != '\0') {
end--;
j--;
}
}
mvwaddnstr(edit, i, 0, ptr, j);
j = 0;
i++;
if (*end == '\n')
end++;
ptr = end;
}
if (*ptr == '\0') {
no_more = 1;
continue;
}
} while ((kbinput = wgetch(edit)) != NANO_EXIT_KEY);
if (no_help_flag) {
werase(bottomwin);
wrefresh(bottomwin);
delwin (bottomwin);
SET(NO_HELP);
bottomwin = newwin(3 - no_help(), COLS, LINES - 3 + no_help(), 0);
keypad(bottomwin, TRUE);
editwinrows += no_help();
}
else
display_main_list();
curs_set(1);
edit_refresh();
#else
nano_small_msg();
#endif
return 1;
}
/* Dump the current file structure to stderr */
void dump_buffer(filestruct * inptr)
{
#ifdef DEBUG
filestruct *fileptr;
if (inptr == fileage)
fprintf(stderr, _("Dumping file buffer to stderr...\n"));
else if (inptr == cutbuffer)
fprintf(stderr, _("Dumping cutbuffer to stderr...\n"));
else
fprintf(stderr, _("Dumping a buffer to stderr...\n"));
fileptr = inptr;
while (fileptr != NULL) {
fprintf(stderr, "(%ld) %s\n", fileptr->lineno, fileptr->data);
fflush(stderr);
fileptr = fileptr->next;
}
#endif /* DEBUG */
}
void dump_buffer_reverse(filestruct * inptr)
{
#ifdef DEBUG
filestruct *fileptr;
fileptr = filebot;
while (fileptr != NULL) {
fprintf(stderr, "(%ld) %s\n", fileptr->lineno, fileptr->data);
fflush(stderr);
fileptr = fileptr->prev;
}
#endif /* DEBUG */
}
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