/*
* Display text from a file in a dialog box, like in a "tail -f".
*/
int
dialog_tailbox(const char *title, const char *file, int height, int width, int bg_task)
{
/* *INDENT-OFF* */
static DLG_KEYS_BINDING binding[] = {
HELPKEY_BINDINGS,
ENTERKEY_BINDINGS,
DLG_KEYS_DATA( DLGK_BEGIN, '0' ),
DLG_KEYS_DATA( DLGK_BEGIN, KEY_BEG ),
DLG_KEYS_DATA( DLGK_GRID_LEFT, 'H' ),
DLG_KEYS_DATA( DLGK_GRID_LEFT, 'h' ),
DLG_KEYS_DATA( DLGK_GRID_LEFT, KEY_LEFT ),
DLG_KEYS_DATA( DLGK_GRID_RIGHT, 'L' ),
DLG_KEYS_DATA( DLGK_GRID_RIGHT, 'l' ),
DLG_KEYS_DATA( DLGK_GRID_RIGHT, KEY_RIGHT ),
END_KEYS_BINDING
};
/* *INDENT-ON* */
#ifdef KEY_RESIZE
int old_height = height;
int old_width = width;
#endif
int fkey;
int x, y, result, thigh;
WINDOW *dialog, *text;
const char **buttons = 0;
MY_OBJ *obj;
FILE *fd;
int min_width = 12;
/* Open input file for reading */
if ((fd = fopen(file, "rb")) == NULL)
dlg_exiterr("Can't open input file in dialog_tailbox().");
#ifdef KEY_RESIZE
retry:
#endif
dlg_auto_sizefile(title, file, &height, &width, 2, min_width);
dlg_print_size(height, width);
dlg_ctl_size(height, width);
x = dlg_box_x_ordinate(width);
y = dlg_box_y_ordinate(height);
thigh = height - ((2 * MARGIN) + (bg_task ? 0 : 2));
dialog = dlg_new_window(height, width, y, x);
dlg_mouse_setbase(x, y);
/* Create window for text region, used for scrolling text */
text = dlg_sub_window(dialog,
thigh,
width - (2 * MARGIN),
y + MARGIN,
x + MARGIN);
dlg_draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr);
dlg_draw_bottom_box(dialog);
dlg_draw_title(dialog, title);
dlg_draw_helpline(dialog, FALSE);
if (!bg_task) {
buttons = dlg_exit_label();
dlg_button_layout(buttons, &min_width);
dlg_draw_buttons(dialog, height - (2 * MARGIN), 0, buttons, FALSE,
FALSE, width);
}
(void) wmove(dialog, thigh, (MARGIN + 1));
(void) wnoutrefresh(dialog);
obj = dlg_calloc(MY_OBJ, 1);
assert_ptr(obj, "dialog_tailbox");
obj->obj.input = fd;
obj->obj.win = dialog;
obj->obj.handle_getc = handle_my_getc;
obj->obj.handle_input = bg_task ? handle_input : 0;
obj->obj.keep_bg = bg_task && dialog_vars.cant_kill;
obj->obj.bg_task = bg_task;
obj->text = text;
obj->buttons = buttons;
dlg_add_callback(&(obj->obj));
dlg_register_window(dialog, "tailbox", binding);
dlg_register_buttons(dialog, "tailbox", buttons);
/* Print last page of text */
dlg_attr_clear(text, thigh, getmaxx(text), dialog_attr);
repaint_text(obj);
if (bg_task) {
result = DLG_EXIT_OK;
} else {
int ch;
do {
ch = dlg_getc(dialog, &fkey);
#ifdef KEY_RESIZE
if (fkey && ch == KEY_RESIZE) {
/* reset data */
height = old_height;
width = old_width;
/* repaint */
dlg_clear();
dlg_del_window(dialog);
refresh();
dlg_mouse_free_regions();
dlg_button_layout(buttons, &min_width);
goto retry;
}
#endif
}
while (handle_my_getc(&(obj->obj), ch, fkey, &result));
}
dlg_mouse_free_regions();
return result;
}
/*
* Display text from a file in a dialog box.
*/
int
dialog_textbox(const char *title, const char *file, int height, int width)
{
/* *INDENT-OFF* */
static DLG_KEYS_BINDING binding[] = {
HELPKEY_BINDINGS,
ENTERKEY_BINDINGS,
DLG_KEYS_DATA( DLGK_GRID_DOWN, 'J' ),
DLG_KEYS_DATA( DLGK_GRID_DOWN, 'j' ),
DLG_KEYS_DATA( DLGK_GRID_DOWN, KEY_DOWN ),
DLG_KEYS_DATA( DLGK_GRID_LEFT, 'H' ),
DLG_KEYS_DATA( DLGK_GRID_LEFT, 'h' ),
DLG_KEYS_DATA( DLGK_GRID_LEFT, KEY_LEFT ),
DLG_KEYS_DATA( DLGK_GRID_RIGHT, 'L' ),
DLG_KEYS_DATA( DLGK_GRID_RIGHT, 'l' ),
DLG_KEYS_DATA( DLGK_GRID_RIGHT, KEY_RIGHT ),
DLG_KEYS_DATA( DLGK_GRID_UP, 'K' ),
DLG_KEYS_DATA( DLGK_GRID_UP, 'k' ),
DLG_KEYS_DATA( DLGK_GRID_UP, KEY_UP ),
DLG_KEYS_DATA( DLGK_PAGE_FIRST, 'g' ),
DLG_KEYS_DATA( DLGK_PAGE_FIRST, KEY_HOME ),
DLG_KEYS_DATA( DLGK_PAGE_LAST, 'G' ),
DLG_KEYS_DATA( DLGK_PAGE_LAST, KEY_END ),
DLG_KEYS_DATA( DLGK_PAGE_LAST, KEY_LL ),
DLG_KEYS_DATA( DLGK_PAGE_NEXT, ' ' ),
DLG_KEYS_DATA( DLGK_PAGE_NEXT, KEY_NPAGE ),
DLG_KEYS_DATA( DLGK_PAGE_PREV, 'B' ),
DLG_KEYS_DATA( DLGK_PAGE_PREV, 'b' ),
DLG_KEYS_DATA( DLGK_PAGE_PREV, KEY_PPAGE ),
DLG_KEYS_DATA( DLGK_BEGIN, '0' ),
DLG_KEYS_DATA( DLGK_BEGIN, KEY_BEG ),
DLG_KEYS_DATA( DLGK_FIELD_NEXT, TAB ),
DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_BTAB ),
END_KEYS_BINDING
};
/* *INDENT-ON* */
#ifdef KEY_RESIZE
int old_height = height;
int old_width = width;
#endif
long fpos;
int x, y, cur_x, cur_y;
int key = 0, fkey;
int next = 0;
int i, code, passed_end;
char search_term[MAX_LEN + 1];
MY_OBJ obj;
WINDOW *dialog;
bool moved;
int result = DLG_EXIT_UNKNOWN;
int button = dlg_default_button();
int min_width = 12;
search_term[0] = '\0'; /* no search term entered yet */
memset(&obj, 0, sizeof(obj));
obj.begin_reached = TRUE;
obj.buffer_first = TRUE;
obj.end_reached = FALSE;
obj.buttons = dlg_exit_label();
/* Open input file for reading */
if ((obj.fd = open(file, O_RDONLY)) == -1)
dlg_exiterr("Can't open input file %s", file);
/* Get file size. Actually, 'file_size' is the real file size - 1,
since it's only the last byte offset from the beginning */
lseek_end(&obj, 0L);
/* Restore file pointer to beginning of file after getting file size */
lseek_set(&obj, 0L);
read_high(&obj, BUF_SIZE);
dlg_button_layout(obj.buttons, &min_width);
#ifdef KEY_RESIZE
retry:
#endif
moved = TRUE;
dlg_auto_sizefile(title, file, &height, &width, 2, min_width);
dlg_print_size(height, width);
dlg_ctl_size(height, width);
x = dlg_box_x_ordinate(width);
y = dlg_box_y_ordinate(height);
dialog = dlg_new_window(height, width, y, x);
dlg_register_window(dialog, "textbox", binding);
dlg_register_buttons(dialog, "textbox", obj.buttons);
dlg_mouse_setbase(x, y);
/* Create window for text region, used for scrolling text */
obj.text = dlg_sub_window(dialog, PAGE_LENGTH, PAGE_WIDTH, y + 1, x + 1);
/* register the new window, along with its borders */
dlg_mouse_mkbigregion(0, 0, PAGE_LENGTH + 2, width, KEY_MAX, 1, 1, 1 /* lines */ );
dlg_draw_box2(dialog, 0, 0, height, width, dialog_attr, border_attr, border2_attr);
dlg_draw_bottom_box2(dialog, border_attr, border2_attr, dialog_attr);
dlg_draw_title(dialog, title);
dlg_draw_buttons(dialog, PAGE_LENGTH + 2, 0, obj.buttons, button, FALSE, width);
(void) wnoutrefresh(dialog);
getyx(dialog, cur_y, cur_x); /* Save cursor position */
dlg_attr_clear(obj.text, PAGE_LENGTH, PAGE_WIDTH, dialog_attr);
while (result == DLG_EXIT_UNKNOWN) {
/*
* Update the screen according to whether we shifted up/down by a line
* or not.
*/
if (moved) {
if (next < 0) {
(void) scrollok(obj.text, TRUE);
(void) scroll(obj.text); /* Scroll text region up one line */
(void) scrollok(obj.text, FALSE);
print_line(&obj, PAGE_LENGTH - 1, PAGE_WIDTH);
(void) wnoutrefresh(obj.text);
} else if (next > 0) {
/*
* We don't call print_page() here but use scrolling to ensure
* faster screen update. However, 'end_reached' and
* 'page_length' should still be updated, and 'in_buf' should
* point to start of next page. This is done by calling
* get_line() in the following 'for' loop.
*/
(void) scrollok(obj.text, TRUE);
(void) wscrl(obj.text, -1); /* Scroll text region down one line */
(void) scrollok(obj.text, FALSE);
obj.page_length = 0;
passed_end = 0;
for (i = 0; i < PAGE_LENGTH; i++) {
if (!i) {
print_line(&obj, 0, PAGE_WIDTH); /* print first line of page */
(void) wnoutrefresh(obj.text);
} else
(void) get_line(&obj); /* Called to update 'end_reached' and 'in_buf' */
if (!passed_end)
obj.page_length++;
if (obj.end_reached && !passed_end)
passed_end = 1;
}
} else {
print_page(&obj, PAGE_LENGTH, PAGE_WIDTH);
}
print_position(&obj, dialog, height, width);
(void) wmove(dialog, cur_y, cur_x); /* Restore cursor position */
wrefresh(dialog);
}
moved = FALSE; /* assume we'll not move */
next = 0; /* ...but not scroll by a line */
key = dlg_mouse_wgetch(dialog, &fkey);
if (dlg_result_key(key, fkey, &result))
break;
if (!fkey && (code = dlg_char_to_button(key, obj.buttons)) >= 0) {
result = dlg_ok_buttoncode(code);
break;
}
if (fkey) {
switch (key) {
default:
if (is_DLGK_MOUSE(key)) {
result = dlg_exit_buttoncode(key - M_EVENT);
if (result < 0)
result = DLG_EXIT_OK;
} else {
beep();
}
break;
case DLGK_FIELD_NEXT:
button = dlg_next_button(obj.buttons, button);
if (button < 0)
button = 0;
dlg_draw_buttons(dialog,
height - 2, 0,
obj.buttons, button,
FALSE, width);
break;
case DLGK_FIELD_PREV:
button = dlg_prev_button(obj.buttons, button);
if (button < 0)
button = 0;
dlg_draw_buttons(dialog,
height - 2, 0,
obj.buttons, button,
FALSE, width);
break;
case DLGK_ENTER:
if (dialog_vars.nook)
result = DLG_EXIT_OK;
else
result = dlg_exit_buttoncode(button);
break;
case DLGK_PAGE_FIRST:
if (!obj.begin_reached) {
obj.begin_reached = 1;
/* First page not in buffer? */
fpos = ftell_obj(&obj);
if (fpos > obj.fd_bytes_read) {
/* Yes, we have to read it in */
lseek_set(&obj, 0L);
read_high(&obj, BUF_SIZE);
}
obj.in_buf = 0;
moved = TRUE;
}
break;
case DLGK_PAGE_LAST:
obj.end_reached = TRUE;
/* Last page not in buffer? */
fpos = ftell_obj(&obj);
if (fpos < obj.file_size) {
/* Yes, we have to read it in */
lseek_end(&obj, -BUF_SIZE);
read_high(&obj, BUF_SIZE);
}
obj.in_buf = obj.bytes_read;
back_lines(&obj, (long) PAGE_LENGTH);
moved = TRUE;
break;
case DLGK_GRID_UP: /* Previous line */
if (!obj.begin_reached) {
back_lines(&obj, obj.page_length + 1);
next = 1;
moved = TRUE;
}
break;
case DLGK_PAGE_PREV: /* Previous page */
case DLGK_MOUSE(KEY_PPAGE):
if (!obj.begin_reached) {
back_lines(&obj, obj.page_length + PAGE_LENGTH);
moved = TRUE;
}
break;
case DLGK_GRID_DOWN: /* Next line */
if (!obj.end_reached) {
obj.begin_reached = 0;
next = -1;
moved = TRUE;
}
break;
case DLGK_PAGE_NEXT: /* Next page */
case DLGK_MOUSE(KEY_NPAGE):
if (!obj.end_reached) {
obj.begin_reached = 0;
moved = TRUE;
}
break;
case DLGK_BEGIN: /* Beginning of line */
if (obj.hscroll > 0) {
obj.hscroll = 0;
/* Reprint current page to scroll horizontally */
back_lines(&obj, obj.page_length);
moved = TRUE;
}
break;
case DLGK_GRID_LEFT: /* Scroll left */
if (obj.hscroll > 0) {
obj.hscroll--;
/* Reprint current page to scroll horizontally */
back_lines(&obj, obj.page_length);
moved = TRUE;
}
break;
case DLGK_GRID_RIGHT: /* Scroll right */
if (obj.hscroll < MAX_LEN) {
obj.hscroll++;
/* Reprint current page to scroll horizontally */
back_lines(&obj, obj.page_length);
moved = TRUE;
}
break;
#ifdef KEY_RESIZE
case KEY_RESIZE:
/* reset data */
height = old_height;
width = old_width;
back_lines(&obj, obj.page_length);
/* repaint */
dlg_clear();
dlg_del_window(dialog);
refresh();
dlg_mouse_free_regions();
goto retry;
#endif
}
} else {
switch (key) {
case '/': /* Forward search */
case 'n': /* Repeat forward search */
case '?': /* Backward search */
case 'N': /* Repeat backward search */
moved = perform_search(&obj, height, width, key, search_term);
fkey = FALSE;
break;
default:
beep();
break;
}
}
}
dlg_del_window(dialog);
free(obj.buf);
(void) close(obj.fd);
dlg_mouse_free_regions();
return result;
}