/* * 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; }
/* * 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; }
int dlg_progressbox(const char *title, const char *cprompt, int height, int width, int pauseopt, FILE *fp) { int i; int x, y, thigh; WINDOW *dialog, *text; MY_OBJ *obj; char *prompt = dlg_strclone(cprompt); int result; dlg_tab_correct_str(prompt); dlg_auto_size(title, prompt, &height, &width, MIN_HIGH, MIN_WIDE); 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); dialog = dlg_new_window(height, width, y, x); dlg_draw_box2(dialog, 0, 0, height, width, dialog_attr, border_attr, border2_attr); dlg_draw_title(dialog, title); dlg_draw_helpline(dialog, FALSE); if (*prompt != '\0') { int y2, x2; (void) wattrset(dialog, dialog_attr); dlg_print_autowrap(dialog, prompt, height, width); getyx(dialog, y2, x2); (void) x2; ++y2; wmove(dialog, y2, MARGIN); for (i = 0; i < getmaxx(dialog) - 2 * MARGIN; i++) (void) waddch(dialog, dlg_boxchar(ACS_HLINE)); y += y2; thigh -= y2; } /* Create window for text region, used for scrolling text */ text = dlg_sub_window(dialog, thigh, width - (2 * MARGIN), y + MARGIN, x + MARGIN); (void) wrefresh(dialog); (void) wmove(dialog, thigh, (MARGIN + 1)); (void) wnoutrefresh(dialog); obj = dlg_calloc(MY_OBJ, 1); assert_ptr(obj, "dlg_progressbox"); obj->obj.input = fp; obj->obj.win = dialog; obj->text = text; dlg_attr_clear(text, thigh, getmaxx(text), dialog_attr); for (i = 0; get_line(obj); i++) { if (i < thigh) { print_line(obj, text, i, width - (2 * MARGIN)); } else { scrollok(text, TRUE); scroll(text); scrollok(text, FALSE); print_line(obj, text, thigh - 1, width - (2 * MARGIN)); } (void) wrefresh(text); dlg_trace_win(dialog); if (obj->is_eof) break; } if (pauseopt) { scrollok(text, TRUE); wscrl(text, 1 + MARGIN); (void) wrefresh(text); result = pause_for_ok(dialog, height, width); } else { wrefresh(dialog); result = DLG_EXIT_OK; } dlg_del_window(dialog); free(prompt); free(obj); return result; }