/* $Id$ */ /************************************************************************** * 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 #include #include #include "config.h" #include "proto.h" #include "nano.h" #ifndef NANO_SMALL #include #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, CENTER); return 1; } int do_last_line(void) { current = filebot; placewewant = 0; current_x = 0; edit_update(current, CENTER); 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 % tabsize == 0); else tabs += tabsize - (tabs % tabsize); } 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 % tabsize == 0) tot++; else tot += tabsize - (tot % tabsize); } 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_from_start 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 % tabsize == 0); else tabs += tabsize - (tabs % tabsize); } 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(); } } /* Repaint the statusbar when getting a character in nanogetstr */ void nanoget_repaint(char *buf, char *inputbuf, int x) { blank_statusbar(); if (x <= COLS - 1) { mvwaddstr(bottomwin, 0, 0, buf); waddnstr(bottomwin, inputbuf, (COLS - 1) - strlen(buf)); } else if (x > COLS - 1 && x <= (COLS - 1) * 2) mvwaddnstr(bottomwin, 0, 0, &inputbuf[(COLS - 1) - strlen(buf)], COLS); else mvwaddnstr(bottomwin, 0, 0, &inputbuf[COLS * (x / (COLS - 1)) - strlen(buf)], COLS); wmove(bottomwin, 0, (x % (COLS - 1))); } /* 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, inputlen; char *inputbuf; inputbuf = nmalloc(strlen(def) + 1); inputbuf[0] = 0; x_left = strlen(buf); x = strlen(def) + x_left; /* Get the input! */ if (strlen(def) > 0) strcpy(inputbuf, def); nanoget_repaint(buf, inputbuf, x); while ((kbinput = wgetch(bottomwin)) != 13) { for (j = 0; j <= slen - 1; j++) { if (kbinput == s[j].val) { answer = mallocstrcpy(answer, ""); free(inputbuf); return s[j].val; } } xend = strlen(buf) + strlen(inputbuf); switch (kbinput) { /* Stuff we want to equate with , ASCII 13 */ case 343: ungetch(13); /* Enter on iris-ansi $TERM, sometimes */ break; case KEY_HOME: x = x_left; nanoget_repaint(buf, inputbuf, x); break; case KEY_END: x = x_left + strlen(inputbuf); nanoget_repaint(buf, inputbuf, 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; } nanoget_repaint(buf, inputbuf, x); break; case NANO_CONTROL_K: case NANO_CONTROL_U: *inputbuf = 0; x = x_left; nanoget_repaint(buf, inputbuf, 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; } } nanoget_repaint(buf, inputbuf, x); 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); nanoget_repaint(buf, inputbuf, x); break; case 72: x = x_left; nanoget_repaint(buf, inputbuf, 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; nanoget_repaint(buf, inputbuf, 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; } nanoget_repaint(buf, inputbuf, x); goto skip_126; case 52: x = x_left + strlen(inputbuf); nanoget_repaint(buf, inputbuf, x); goto skip_126; skip_126: nodelay(edit, TRUE); kbinput = wgetch(edit); if (kbinput == 126 || kbinput == ERR) kbinput = -1; nodelay(edit, FALSE); break; } } nanoget_repaint(buf, inputbuf, x); break; default: if (kbinput < 32) break; inputlen = strlen(inputbuf); inputbuf = nrealloc(inputbuf, inputlen + 2); memmove(&inputbuf[x - x_left + 1], &inputbuf[x - x_left], inputlen - (x - x_left) + 1); inputbuf[x - x_left] = kbinput; x++; nanoget_repaint(buf, inputbuf, x); #ifdef DEBUG fprintf(stderr, _("input \'%c\' (%d)\n"), kbinput, kbinput); #endif } wrefresh(bottomwin); } answer = mallocstrcpy(answer, inputbuf); free(inputbuf); /* Now that the text is editable instead of bracketed, we have to check for answer == def, instead of answer == "" */ if (!strcmp(answer, def)) 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, " %-10s", 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); } 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) { snprintf(keystr, 10, "^%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) { snprintf(keystr, 10, "^%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); } } /* And so start the display update routines */ /* Given a column, this returns the "page" it is on */ /* "page" in the case of the display columns, means which set of 80 */ /* characters is viewable (ie: page 1 shows from 1 to COLS) */ 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; } /* The inverse of the above function */ 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 /* This takes care of the case where there is a mark that covers only */ /* the current line. */ /* It expects a line with no tab characers (ie: the type that edit_add */ /* deals with */ void add_marked_sameline(int begin, int end, filestruct * fileptr, int y, int virt_cur_x, int this_page) { /* * The general idea is to break the line up into 3 sections: before * the mark, the mark, and after the mark. We then paint each in * turn (for those that are currently visible, of course * * 3 start points: 0 -> begin, begin->end, end->strlen(data) * in data : pre sel post */ int this_page_start = get_page_start_virtual(this_page), this_page_end = get_page_end_virtual(this_page); /* likewise, 3 data lengths */ int pre_data_len = begin, sel_data_len = end - begin, post_data_len = 0; /* Determined from the other two */ /* now fix the start locations & lengths according to the cursor's * position (ie: our page) */ if (pre_data_len < this_page_start) pre_data_len = 0; else pre_data_len -= this_page_start; if (begin < this_page_start) begin = this_page_start; if (end < this_page_start) end = this_page_start; if (begin > this_page_end) begin = this_page_end; if (end > this_page_end) end = this_page_end; /* Now calculate the lengths */ sel_data_len = end - begin; post_data_len = this_page_end - end; /* Paint this line! */ mvwaddnstr(edit, y, 0, &fileptr->data[this_page_start], pre_data_len); wattron(edit, A_REVERSE); mvwaddnstr(edit, y, begin - this_page_start, &fileptr->data[begin], sel_data_len); wattroff(edit, A_REVERSE); mvwaddnstr(edit, y, end - this_page_start, &fileptr->data[end], post_data_len); } #endif /* edit_add takes care of the job of actually painting a line into the * edit window. * * Called only from update_line. Expects a converted-to-not-have-tabs * line */ void edit_add(filestruct * fileptr, int yval, int start, int virt_cur_x, int virt_mark_beginx, int this_page) { #ifndef NANO_SMALL /* There are quite a few cases that could take place, we'll deal * with them each in turn */ if (ISSET(MARK_ISSET) && !((fileptr->lineno > mark_beginbuf->lineno && fileptr->lineno > current->lineno) || (fileptr->lineno < mark_beginbuf->lineno && fileptr->lineno < current->lineno))) { /* If we get here we are on a line that is atleast * partially selected. The lineno checks above determined * that */ if (fileptr != mark_beginbuf && fileptr != current) { /* We are on a completely marked line, paint it all * inverse */ wattron(edit, A_REVERSE); mvwaddnstr(edit, yval, 0, fileptr->data, COLS); wattroff(edit, A_REVERSE); } else if (fileptr == mark_beginbuf && fileptr == current) { /* Special case, we're still on the same line we started * marking -- so we call our helper function */ if (virt_cur_x < virt_mark_beginx) { /* To the right of us is marked */ add_marked_sameline(virt_cur_x, virt_mark_beginx, fileptr, yval, virt_cur_x, this_page); } else { /* To the left of us is marked */ add_marked_sameline(virt_mark_beginx, virt_cur_x, fileptr, yval, virt_cur_x, this_page); } } else if (fileptr == mark_beginbuf) { /* * we're updating the line that was first marked * but we're not currently on it. So we want to * figur out which half to invert based on our * relative line numbers. * * i.e. If we're above the "beginbuf" line, we want to * mark the left side. Otherwise we're below, so we * mark the right */ int target; if (mark_beginbuf->lineno > current->lineno) wattron(edit, A_REVERSE); target = (virt_mark_beginx < COLS - 1) ? virt_mark_beginx : COLS - 1; mvwaddnstr(edit, yval, 0, fileptr->data, target); if (mark_beginbuf->lineno < current->lineno) wattron(edit, A_REVERSE); else wattroff(edit, A_REVERSE); target = (COLS - 1) - virt_mark_beginx; if (target < 0) target = 0; mvwaddnstr(edit, yval, virt_mark_beginx, &fileptr->data[virt_mark_beginx], target); 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. Similar to the previous logic. */ int 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 (virt_cur_x > COLS - 2) { mvwaddnstr(edit, yval, 0, &fileptr->data[this_page_start], virt_cur_x - this_page_start); } else { mvwaddnstr(edit, yval, 0, fileptr->data, virt_cur_x); } if (mark_beginbuf->lineno > current->lineno) wattron(edit, A_REVERSE); else wattroff(edit, A_REVERSE); if (virt_cur_x > COLS - 2) mvwaddnstr(edit, yval, virt_cur_x - this_page_start, &fileptr->data[virt_cur_x], this_page_end - virt_cur_x); else mvwaddnstr(edit, yval, virt_cur_x, &fileptr->data[virt_cur_x], COLS - virt_cur_x); if (mark_beginbuf->lineno > current->lineno) wattroff(edit, A_REVERSE); } } else #endif /* Just paint the string (no mark on this line) */ mvwaddnstr(edit, yval, 0, &fileptr->data[start], get_page_end_virtual(this_page) - start); } /* * Just update one line in the edit buffer. Basically a wrapper for * edit_add * * 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; int virt_cur_x = current_x, virt_mark_beginx = mark_beginx; char *realdata, *tmp; int i, pos, len, page; if (!fileptr) return; /* First, blank out the line (at a minimum) */ for (filetmp = edittop; filetmp != fileptr && filetmp != editbot; filetmp = filetmp->next) line++; mvwaddstr(edit, line, 0, hblank); /* Next, convert all the tabs to spaces so everything else is easy */ index = xpt(fileptr, index); realdata = fileptr->data; len = strlen(realdata); fileptr->data = nmalloc(xpt(fileptr, len) + 1); pos = 0; for (i = 0; i < len; i++) { if (realdata[i] == '\t') { do { fileptr->data[pos++] = ' '; if (i < current_x) virt_cur_x++; if (i < mark_beginx) virt_mark_beginx++; } while (pos % tabsize); /* must decrement once to account for tab-is-one-character */ if (i < current_x) virt_cur_x--; if (i < mark_beginx) virt_mark_beginx--; } else if (realdata[i] >= 1 && realdata[i] <= 26) { /* Treat control characters as ^letter */ fileptr->data[pos++] = '^'; fileptr->data[pos++] = realdata[i] + 64; } else { fileptr->data[pos++] = realdata[i]; } } fileptr->data[pos] = '\0'; /* Now, Paint the line */ if (current == fileptr && index > COLS - 2) { /* This handles when the current line is beyond COLS */ /* It requires figureing out what page we're at */ page = get_page_from_virtual(index); col = get_page_start_virtual(page); edit_add(filetmp, line, col, virt_cur_x, virt_mark_beginx, page); mvwaddch(edit, line, 0, '$'); if (strlenpt(fileptr->data) > get_page_end_virtual(page)) mvwaddch(edit, line, COLS - 1, '$'); } else { /* It's not the current line means that it's at x=0 and page=1 */ /* If it is the current line, then we're in the same boat */ edit_add(filetmp, line, 0, virt_cur_x, virt_mark_beginx, 1); if (strlenpt(&filetmp->data[col]) > COLS) mvwaddch(edit, line, COLS - 1, '$'); } /* Clean up our mess */ tmp = fileptr->data; fileptr->data = realdata; free(tmp); } 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) { static int noloop = 0; int lines = 0, i = 0, currentcheck = 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); if (temp == current) currentcheck = 1; temp = temp->next; lines++; } /* If noloop == 1, then we already did an edit_update without finishing this function. So we don't run edit_update again */ if (!currentcheck && !noloop) { /* Then current has run off the screen... */ edit_update(current, CENTER); noloop = 1; } else if (noloop) noloop = 0; if (lines <= editwinrows - 1) while (lines <= editwinrows - 1) { mvwaddstr(edit, lines, i, hblank); lines++; } if (temp == NULL) editbot = hold; else editbot = temp; } /* * Same as above, but touch the window first so everything is redrawn. */ void edit_refresh_clearok(void) { clearok(edit, TRUE); edit_refresh(); clearok(edit, FALSE); } /* * Nice generic routine to update the edit buffer given a pointer to the * file struct =) */ void edit_update(filestruct * fileptr, int topmidbot) { int i = 0; filestruct *temp; if (fileptr == NULL) return; temp = fileptr; if (topmidbot == 2); else if (topmidbot == 0) for (i = 0; i <= editwinrows - 1 && temp->prev != NULL; i++) temp = temp->prev; else for (i = 0; i <= editwinrows / 2 && temp->prev != NULL; i++) temp = temp->prev; edittop = temp; fix_editbot(); edit_refresh(); } /* 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); va_end(ap); strncat(foo, ": ", 132); 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); /* Remove gettext call for keybindings until we clear the thing up */ 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(); 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; } } /* 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) { 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); edit_refresh(); titlebar(); 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 - 2 && *ptr != '\0') { if (*ptr == '\n' || j == COLS - 5) { j = 0; row++; } ptr++; j++; } } if (i > 1) { } 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 */ } /* Fix editbot based on the assumption that edittop is correct */ void fix_editbot(void) { int i; editbot = edittop; for (i = 0; (i <= editwinrows - 1) && (editbot->next != NULL) && (editbot != filebot); i++, editbot = editbot->next); }