diff options
Diffstat (limited to 'contrib/dialog/arrows.c')
| -rw-r--r-- | contrib/dialog/arrows.c | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/contrib/dialog/arrows.c b/contrib/dialog/arrows.c new file mode 100644 index 0000000..536e277 --- /dev/null +++ b/contrib/dialog/arrows.c @@ -0,0 +1,217 @@ +/* + * $Id: arrows.c,v 1.29 2010/02/24 09:17:00 Samuel.Martin.Moro Exp $ + * + * arrows.c -- draw arrows to indicate end-of-range for lists + * + * Copyright 2000-2009,2010 Thomas E. Dickey + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License, version 2.1 + * as published by the Free Software Foundation. + * + * 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this program; if not, write to + * Free Software Foundation, Inc. + * 51 Franklin St., Fifth Floor + * Boston, MA 02110, USA. + */ + +#include <dialog.h> + +#ifdef USE_WIDE_CURSES +#define add_acs(win, code) wadd_wch(win, W ## code) +#else +#define add_acs(win, code) waddch(win, dlg_boxchar(code)) +#endif + +#ifdef HAVE_COLOR +static chtype +merge_colors(chtype foreground, chtype background) +{ + chtype result = foreground; + if ((foreground & A_COLOR) != (background & A_COLOR)) { + short fg_f, bg_f; + short fg_b, bg_b; + short fg_pair = (short) PAIR_NUMBER(foreground); + short bg_pair = (short) PAIR_NUMBER(background); + + if (pair_content(fg_pair, &fg_f, &bg_f) != ERR + && pair_content(bg_pair, &fg_b, &bg_b) != ERR) { + result &= ~A_COLOR; + result |= dlg_color_pair(fg_f, bg_b); + } + } + return result; +} +#else +#define merge_colors(f,b) (f) +#endif + +void +dlg_draw_arrows2(WINDOW *win, + int top_arrow, + int bottom_arrow, + int x, + int top, + int bottom, + chtype attr, + chtype borderattr) +{ + chtype save = getattrs(win); + int cur_x, cur_y; + int limit_x = getmaxx(win); + bool draw_top = TRUE; + + getyx(win, cur_y, cur_x); + + /* + * If we're drawing a centered title, do not overwrite with the arrows. + */ + if (dialog_vars.title) { + int have = (limit_x - dlg_count_columns(dialog_vars.title)) / 2; + int need = x + 5; + if (need > have) + draw_top = FALSE; + } + + if (draw_top) { + (void) wmove(win, top, x); + if (top_arrow) { + wattrset(win, merge_colors(uarrow_attr, attr)); + (void) add_acs(win, ACS_UARROW); + (void) waddstr(win, "(-)"); + } else { + wattrset(win, attr); + (void) whline(win, dlg_boxchar(ACS_HLINE), 4); + } + } + mouse_mkbutton(top, x - 1, 6, KEY_PPAGE); + + (void) wmove(win, bottom, x); + if (bottom_arrow) { + wattrset(win, merge_colors(darrow_attr, attr)); + (void) add_acs(win, ACS_DARROW); + (void) waddstr(win, "(+)"); + } else { + wattrset(win, borderattr); + (void) whline(win, dlg_boxchar(ACS_HLINE), 4); + } + mouse_mkbutton(bottom, x - 1, 6, KEY_NPAGE); + + (void) wmove(win, cur_y, cur_x); + wrefresh(win); + + wattrset(win, save); +} + +void +dlg_draw_scrollbar(WINDOW *win, + long first_data, + long this_data, + long next_data, + long total_data, + int left, + int right, + int top, + int bottom, + chtype attr, + chtype borderattr) +{ + char buffer[80]; + int percent; + int len; + int oldy, oldx, maxy, maxx; + + chtype save = getattrs(win); + int top_arrow = (first_data != 0); + int bottom_arrow = (next_data < total_data); + + getyx(win, oldy, oldx); + getmaxyx(win, maxy, maxx); + + if (bottom_arrow || top_arrow || dialog_state.use_scrollbar) { + percent = (!total_data + ? 100 + : (int) ((next_data * 100) + / total_data)); + + if (percent < 0) + percent = 0; + else if (percent > 100) + percent = 100; + + wattrset(win, position_indicator_attr); + (void) sprintf(buffer, "%d%%", percent); + (void) wmove(win, bottom, right - 7); + (void) waddstr(win, buffer); + if ((len = dlg_count_columns(buffer)) < 4) { + wattrset(win, border_attr); + whline(win, dlg_boxchar(ACS_HLINE), 4 - len); + } + } +#define BARSIZE(num) ((all_high * (num)) + all_high - 1) / total_data + + if (dialog_state.use_scrollbar) { + int all_high = (bottom - top - 1); + + if (total_data > 0 && all_high > 0) { + int bar_high; + int bar_y; + + bar_high = BARSIZE(next_data - this_data); + if (bar_high <= 0) + bar_high = 1; + + if (bar_high < all_high) { + wmove(win, top + 1, right); + + wattrset(win, save); + wvline(win, ACS_VLINE | A_REVERSE, all_high); + + bar_y = BARSIZE(this_data); + if (bar_y > all_high - bar_high) + bar_y = all_high - bar_high; + + wmove(win, top + 1 + bar_y, right); + + wattrset(win, position_indicator_attr); + wattron(win, A_REVERSE); + wvline(win, ACS_BLOCK, bar_high); + } + } + } + dlg_draw_arrows2(win, + top_arrow, + bottom_arrow, + left + ARROWS_COL, + top, + bottom, + attr, + borderattr); + + wattrset(win, save); + wmove(win, oldy, oldx); +} + +void +dlg_draw_arrows(WINDOW *win, + int top_arrow, + int bottom_arrow, + int x, + int top, + int bottom) +{ + dlg_draw_arrows2(win, + top_arrow, + bottom_arrow, + x, + top, + bottom, + menubox_attr, + menubox_border_attr); +} |
