arrows.c revision 224014
1217309Snwhitehorn/* 2224014Snwhitehorn * $Id: arrows.c,v 1.36 2011/06/27 09:13:56 tom Exp $ 3217309Snwhitehorn * 4217309Snwhitehorn * arrows.c -- draw arrows to indicate end-of-range for lists 5217309Snwhitehorn * 6220749Snwhitehorn * Copyright 2000-2010,2011 Thomas E. Dickey 7217309Snwhitehorn * 8217309Snwhitehorn * This program is free software; you can redistribute it and/or modify 9217309Snwhitehorn * it under the terms of the GNU Lesser General Public License, version 2.1 10217309Snwhitehorn * as published by the Free Software Foundation. 11217309Snwhitehorn * 12217309Snwhitehorn * This program is distributed in the hope that it will be useful, but 13217309Snwhitehorn * WITHOUT ANY WARRANTY; without even the implied warranty of 14217309Snwhitehorn * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15217309Snwhitehorn * Lesser General Public License for more details. 16217309Snwhitehorn * 17217309Snwhitehorn * You should have received a copy of the GNU Lesser General Public 18217309Snwhitehorn * License along with this program; if not, write to 19217309Snwhitehorn * Free Software Foundation, Inc. 20217309Snwhitehorn * 51 Franklin St., Fifth Floor 21217309Snwhitehorn * Boston, MA 02110, USA. 22217309Snwhitehorn */ 23217309Snwhitehorn 24217309Snwhitehorn#include <dialog.h> 25217309Snwhitehorn 26217309Snwhitehorn#ifdef USE_WIDE_CURSES 27220749Snwhitehorn#if defined(CURSES_WACS_ARRAY) && !defined(CURSES_WACS_SYMBOLS) 28220749Snwhitehorn/* workaround for NetBSD 5.1 curses */ 29220749Snwhitehorn#undef WACS_DARROW 30220749Snwhitehorn#undef WACS_UARROW 31220749Snwhitehorn#define WACS_DARROW &(CURSES_WACS_ARRAY['.']) 32220749Snwhitehorn#define WACS_UARROW &(CURSES_WACS_ARRAY['-']) 33220749Snwhitehorn#endif 34217309Snwhitehorn#define add_acs(win, code) wadd_wch(win, W ## code) 35217309Snwhitehorn#else 36217309Snwhitehorn#define add_acs(win, code) waddch(win, dlg_boxchar(code)) 37217309Snwhitehorn#endif 38217309Snwhitehorn 39224014Snwhitehorn/* size of decorations */ 40224014Snwhitehorn#define ON_LEFT 4 41224014Snwhitehorn#define ON_RIGHT 3 42224014Snwhitehorn 43217309Snwhitehorn#ifdef HAVE_COLOR 44217309Snwhitehornstatic chtype 45217309Snwhitehornmerge_colors(chtype foreground, chtype background) 46217309Snwhitehorn{ 47217309Snwhitehorn chtype result = foreground; 48217309Snwhitehorn if ((foreground & A_COLOR) != (background & A_COLOR)) { 49217309Snwhitehorn short fg_f, bg_f; 50217309Snwhitehorn short fg_b, bg_b; 51217309Snwhitehorn short fg_pair = (short) PAIR_NUMBER(foreground); 52217309Snwhitehorn short bg_pair = (short) PAIR_NUMBER(background); 53217309Snwhitehorn 54217309Snwhitehorn if (pair_content(fg_pair, &fg_f, &bg_f) != ERR 55217309Snwhitehorn && pair_content(bg_pair, &fg_b, &bg_b) != ERR) { 56217309Snwhitehorn result &= ~A_COLOR; 57217309Snwhitehorn result |= dlg_color_pair(fg_f, bg_b); 58217309Snwhitehorn } 59217309Snwhitehorn } 60217309Snwhitehorn return result; 61217309Snwhitehorn} 62217309Snwhitehorn#else 63217309Snwhitehorn#define merge_colors(f,b) (f) 64217309Snwhitehorn#endif 65217309Snwhitehorn 66224014Snwhitehorn/* 67224014Snwhitehorn * If we have help-line text, e.g., from "--hline", draw it between the other 68224014Snwhitehorn * decorations at the bottom of the dialog window. 69224014Snwhitehorn */ 70217309Snwhitehornvoid 71224014Snwhitehorndlg_draw_helpline(WINDOW *win, bool decorations) 72224014Snwhitehorn{ 73224014Snwhitehorn int cur_x, cur_y; 74224014Snwhitehorn int bottom; 75224014Snwhitehorn 76224014Snwhitehorn if (dialog_vars.help_line != 0 77224014Snwhitehorn && (bottom = getmaxy(win) - 1) > 0) { 78224014Snwhitehorn chtype attr = A_NORMAL; 79224014Snwhitehorn const int *cols = dlg_index_columns(dialog_vars.help_line); 80224014Snwhitehorn int other = decorations ? (ON_LEFT + ON_RIGHT) : 0; 81224014Snwhitehorn int avail = (getmaxx(win) - other - 2); 82224014Snwhitehorn int limit = dlg_limit_columns(dialog_vars.help_line, avail, 0); 83224014Snwhitehorn 84224014Snwhitehorn if (limit > 0) { 85224014Snwhitehorn getyx(win, cur_y, cur_x); 86224014Snwhitehorn other = decorations ? ON_LEFT : 0; 87224014Snwhitehorn (void) wmove(win, bottom, other + (avail - limit) / 2); 88224014Snwhitehorn waddch(win, '['); 89224014Snwhitehorn dlg_print_text(win, dialog_vars.help_line, cols[limit], &attr); 90224014Snwhitehorn waddch(win, ']'); 91224014Snwhitehorn wmove(win, cur_y, cur_x); 92224014Snwhitehorn } 93224014Snwhitehorn } 94224014Snwhitehorn} 95224014Snwhitehorn 96224014Snwhitehornvoid 97217309Snwhitehorndlg_draw_arrows2(WINDOW *win, 98217309Snwhitehorn int top_arrow, 99217309Snwhitehorn int bottom_arrow, 100217309Snwhitehorn int x, 101217309Snwhitehorn int top, 102217309Snwhitehorn int bottom, 103217309Snwhitehorn chtype attr, 104217309Snwhitehorn chtype borderattr) 105217309Snwhitehorn{ 106220749Snwhitehorn chtype save = dlg_get_attrs(win); 107217309Snwhitehorn int cur_x, cur_y; 108217309Snwhitehorn int limit_x = getmaxx(win); 109217309Snwhitehorn bool draw_top = TRUE; 110217309Snwhitehorn 111217309Snwhitehorn getyx(win, cur_y, cur_x); 112217309Snwhitehorn 113217309Snwhitehorn /* 114217309Snwhitehorn * If we're drawing a centered title, do not overwrite with the arrows. 115217309Snwhitehorn */ 116217309Snwhitehorn if (dialog_vars.title) { 117217309Snwhitehorn int have = (limit_x - dlg_count_columns(dialog_vars.title)) / 2; 118217309Snwhitehorn int need = x + 5; 119217309Snwhitehorn if (need > have) 120217309Snwhitehorn draw_top = FALSE; 121217309Snwhitehorn } 122217309Snwhitehorn 123217309Snwhitehorn if (draw_top) { 124217309Snwhitehorn (void) wmove(win, top, x); 125217309Snwhitehorn if (top_arrow) { 126217309Snwhitehorn wattrset(win, merge_colors(uarrow_attr, attr)); 127217309Snwhitehorn (void) add_acs(win, ACS_UARROW); 128217309Snwhitehorn (void) waddstr(win, "(-)"); 129217309Snwhitehorn } else { 130217309Snwhitehorn wattrset(win, attr); 131224014Snwhitehorn (void) whline(win, dlg_boxchar(ACS_HLINE), ON_LEFT); 132217309Snwhitehorn } 133217309Snwhitehorn } 134217309Snwhitehorn mouse_mkbutton(top, x - 1, 6, KEY_PPAGE); 135217309Snwhitehorn 136217309Snwhitehorn (void) wmove(win, bottom, x); 137217309Snwhitehorn if (bottom_arrow) { 138217309Snwhitehorn wattrset(win, merge_colors(darrow_attr, attr)); 139217309Snwhitehorn (void) add_acs(win, ACS_DARROW); 140217309Snwhitehorn (void) waddstr(win, "(+)"); 141217309Snwhitehorn } else { 142217309Snwhitehorn wattrset(win, borderattr); 143224014Snwhitehorn (void) whline(win, dlg_boxchar(ACS_HLINE), ON_LEFT); 144217309Snwhitehorn } 145217309Snwhitehorn mouse_mkbutton(bottom, x - 1, 6, KEY_NPAGE); 146217309Snwhitehorn 147217309Snwhitehorn (void) wmove(win, cur_y, cur_x); 148217309Snwhitehorn wrefresh(win); 149217309Snwhitehorn 150217309Snwhitehorn wattrset(win, save); 151217309Snwhitehorn} 152217309Snwhitehorn 153217309Snwhitehornvoid 154217309Snwhitehorndlg_draw_scrollbar(WINDOW *win, 155217309Snwhitehorn long first_data, 156217309Snwhitehorn long this_data, 157217309Snwhitehorn long next_data, 158217309Snwhitehorn long total_data, 159217309Snwhitehorn int left, 160217309Snwhitehorn int right, 161217309Snwhitehorn int top, 162217309Snwhitehorn int bottom, 163217309Snwhitehorn chtype attr, 164217309Snwhitehorn chtype borderattr) 165217309Snwhitehorn{ 166217309Snwhitehorn char buffer[80]; 167217309Snwhitehorn int percent; 168217309Snwhitehorn int len; 169217309Snwhitehorn int oldy, oldx, maxy, maxx; 170217309Snwhitehorn 171220749Snwhitehorn chtype save = dlg_get_attrs(win); 172217309Snwhitehorn int top_arrow = (first_data != 0); 173217309Snwhitehorn int bottom_arrow = (next_data < total_data); 174217309Snwhitehorn 175217309Snwhitehorn getyx(win, oldy, oldx); 176217309Snwhitehorn getmaxyx(win, maxy, maxx); 177217309Snwhitehorn 178224014Snwhitehorn dlg_draw_helpline(win, TRUE); 179217309Snwhitehorn if (bottom_arrow || top_arrow || dialog_state.use_scrollbar) { 180217309Snwhitehorn percent = (!total_data 181217309Snwhitehorn ? 100 182217309Snwhitehorn : (int) ((next_data * 100) 183217309Snwhitehorn / total_data)); 184217309Snwhitehorn 185217309Snwhitehorn if (percent < 0) 186217309Snwhitehorn percent = 0; 187217309Snwhitehorn else if (percent > 100) 188217309Snwhitehorn percent = 100; 189217309Snwhitehorn 190217309Snwhitehorn wattrset(win, position_indicator_attr); 191217309Snwhitehorn (void) sprintf(buffer, "%d%%", percent); 192217309Snwhitehorn (void) wmove(win, bottom, right - 7); 193217309Snwhitehorn (void) waddstr(win, buffer); 194217309Snwhitehorn if ((len = dlg_count_columns(buffer)) < 4) { 195217309Snwhitehorn wattrset(win, border_attr); 196217309Snwhitehorn whline(win, dlg_boxchar(ACS_HLINE), 4 - len); 197217309Snwhitehorn } 198217309Snwhitehorn } 199220749Snwhitehorn#define BARSIZE(num) (int) (((all_high * (num)) + all_high - 1) / total_data) 200217309Snwhitehorn 201217309Snwhitehorn if (dialog_state.use_scrollbar) { 202217309Snwhitehorn int all_high = (bottom - top - 1); 203217309Snwhitehorn 204217309Snwhitehorn if (total_data > 0 && all_high > 0) { 205217309Snwhitehorn int bar_high; 206217309Snwhitehorn int bar_y; 207217309Snwhitehorn 208217309Snwhitehorn bar_high = BARSIZE(next_data - this_data); 209217309Snwhitehorn if (bar_high <= 0) 210217309Snwhitehorn bar_high = 1; 211217309Snwhitehorn 212217309Snwhitehorn if (bar_high < all_high) { 213217309Snwhitehorn wmove(win, top + 1, right); 214217309Snwhitehorn 215217309Snwhitehorn wattrset(win, save); 216217309Snwhitehorn wvline(win, ACS_VLINE | A_REVERSE, all_high); 217217309Snwhitehorn 218217309Snwhitehorn bar_y = BARSIZE(this_data); 219217309Snwhitehorn if (bar_y > all_high - bar_high) 220217309Snwhitehorn bar_y = all_high - bar_high; 221217309Snwhitehorn 222217309Snwhitehorn wmove(win, top + 1 + bar_y, right); 223217309Snwhitehorn 224217309Snwhitehorn wattrset(win, position_indicator_attr); 225217309Snwhitehorn wattron(win, A_REVERSE); 226217309Snwhitehorn wvline(win, ACS_BLOCK, bar_high); 227217309Snwhitehorn } 228217309Snwhitehorn } 229217309Snwhitehorn } 230217309Snwhitehorn dlg_draw_arrows2(win, 231217309Snwhitehorn top_arrow, 232217309Snwhitehorn bottom_arrow, 233217309Snwhitehorn left + ARROWS_COL, 234217309Snwhitehorn top, 235217309Snwhitehorn bottom, 236217309Snwhitehorn attr, 237217309Snwhitehorn borderattr); 238217309Snwhitehorn 239217309Snwhitehorn wattrset(win, save); 240217309Snwhitehorn wmove(win, oldy, oldx); 241217309Snwhitehorn} 242217309Snwhitehorn 243217309Snwhitehornvoid 244217309Snwhitehorndlg_draw_arrows(WINDOW *win, 245217309Snwhitehorn int top_arrow, 246217309Snwhitehorn int bottom_arrow, 247217309Snwhitehorn int x, 248217309Snwhitehorn int top, 249217309Snwhitehorn int bottom) 250217309Snwhitehorn{ 251224014Snwhitehorn dlg_draw_helpline(win, TRUE); 252217309Snwhitehorn dlg_draw_arrows2(win, 253217309Snwhitehorn top_arrow, 254217309Snwhitehorn bottom_arrow, 255217309Snwhitehorn x, 256217309Snwhitehorn top, 257217309Snwhitehorn bottom, 258217309Snwhitehorn menubox_attr, 259217309Snwhitehorn menubox_border_attr); 260217309Snwhitehorn} 261