2006-12-18 12:32:42 +08:00
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/****************************************************************************
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2007-01-07 09:32:36 +08:00
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* Copyright (c) 2006,2007 Free Software Foundation, Inc. *
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2006-12-18 12:32:42 +08:00
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a *
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* copy of this software and associated documentation files (the *
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* "Software"), to deal in the Software without restriction, including *
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* without limitation the rights to use, copy, modify, merge, publish, *
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* distribute, distribute with modifications, sublicense, and/or sell *
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* copies of the Software, and to permit persons to whom the Software is *
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* furnished to do so, subject to the following conditions: *
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* *
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* The above copyright notice and this permission notice shall be included *
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* in all copies or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
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* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
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* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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* *
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* Except as contained in this notice, the name(s) of the above copyright *
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* holders shall not be used in advertising or otherwise to promote the *
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* sale, use or other dealings in this Software without prior written *
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* authorization. *
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****************************************************************************/
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/*
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2007-01-07 09:32:36 +08:00
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* $Id: movewindow.c,v 1.20 2007/01/06 23:28:53 tom Exp $
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2006-12-18 12:32:42 +08:00
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*
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* Demonstrate move functions for windows and derived windows from the curses
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* library.
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*
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* Thomas Dickey - 2006/2/11
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*/
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/*
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derwin
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mvderwin
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subwin
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mvwin
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*/
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#include <test.priv.h>
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#include <stdarg.h>
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#ifdef HAVE_XCURSES
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#undef derwin
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#endif
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#undef LINE_MAX
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#define LINE_MIN 2
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#define LINE_MAX (LINES - 2)
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#define COL_MIN 2
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#define COL_MAX (COLS - 2)
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typedef struct {
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int y, x;
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} PAIR;
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typedef struct {
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WINDOW *parent; /* need this since WINDOW->_parent is not portable */
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WINDOW *child; /* the actual value */
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} FRAME;
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2007-01-07 09:32:36 +08:00
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static void head_line(const char *fmt,...) GCC_PRINTFLIKE(1, 2);
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static void tail_line(const char *fmt,...) GCC_PRINTFLIKE(1, 2);
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2006-12-18 12:32:42 +08:00
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static unsigned num_windows;
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static FRAME *all_windows;
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static void
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2007-01-07 09:32:36 +08:00
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message(int lineno, const char *fmt, va_list argp)
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2006-12-18 12:32:42 +08:00
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{
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int y, x;
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getyx(stdscr, y, x);
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move(lineno, 0);
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clrtoeol();
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#ifdef HAVE_XCURSES
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{
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char buffer[1024];
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vsprintf(buffer, fmt, argp);
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addstr(buffer);
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}
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#else
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vwprintw(stdscr, fmt, argp);
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#endif
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move(y, x);
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refresh();
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}
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static void
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2007-01-07 09:32:36 +08:00
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head_line(const char *fmt,...)
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2006-12-18 12:32:42 +08:00
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{
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va_list argp;
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va_start(argp, fmt);
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message(0, fmt, argp);
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va_end(argp);
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}
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static void
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2007-01-07 09:32:36 +08:00
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tail_line(const char *fmt,...)
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2006-12-18 12:32:42 +08:00
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{
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va_list argp;
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va_start(argp, fmt);
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message(LINES - 1, fmt, argp);
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va_end(argp);
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}
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/*
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* Arrow keys move cursor, return location at current on non-arrow key.
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*/
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static PAIR *
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selectcell(WINDOW *parent, int uli, int ulj, int lri, int lrj)
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{
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static PAIR res; /* result cell */
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int si = lri - uli + 1; /* depth of the select area */
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int sj = lrj - ulj + 1; /* width of the select area */
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int i = 0, j = 0; /* offsets into the select area */
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res.y = uli;
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res.x = ulj;
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for (;;) {
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tail_line("Upper left [%2d,%2d] Lower right [%2d,%2d] -> %d,%d",
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uli, ulj,
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lri, lrj,
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uli + i, ulj + j);
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wmove(parent, uli + i, ulj + j);
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switch (wgetch(parent)) {
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case KEY_UP:
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i += si - 1;
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break;
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case KEY_DOWN:
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i++;
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break;
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case KEY_LEFT:
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j += sj - 1;
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break;
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case KEY_RIGHT:
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j++;
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break;
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case QUIT:
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case ESCAPE:
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return ((PAIR *) 0);
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#ifdef NCURSES_MOUSE_VERSION
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case KEY_MOUSE:
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{
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MEVENT event;
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getmouse(&event);
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if (event.y > uli && event.x > ulj) {
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i = event.y - uli;
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j = event.x - ulj;
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} else {
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beep();
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break;
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}
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}
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/* FALLTHRU */
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#endif
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default:
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res.y = uli + i;
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res.x = ulj + j;
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return (&res);
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}
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i %= si;
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j %= sj;
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}
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}
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/*
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* Ask user for a window definition.
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*/
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static bool
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getwindow(WINDOW *parent, PAIR * ul, PAIR * lr)
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{
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int min_col = (parent == stdscr) ? COL_MIN : 0;
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int max_col = (parent == stdscr) ? COL_MAX : getmaxx(parent);
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int min_line = (parent == stdscr) ? LINE_MIN : 0;
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int max_line = (parent == stdscr) ? LINE_MAX : getmaxy(parent);
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PAIR *tmp;
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bool result = FALSE;
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head_line("Use arrows to move cursor, anything else to mark corner 1");
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if ((tmp = selectcell(parent, min_line, min_col, max_line, max_col)) != 0) {
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*ul = *tmp;
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mvwaddch(parent, ul->y, ul->x, '*');
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head_line("Use arrows to move cursor, anything else to mark corner 2");
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if ((tmp = selectcell(parent, ul->y, ul->x, max_line, max_col)) != 0) {
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*lr = *tmp;
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mvwaddch(parent, lr->y, lr->x, '*');
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wmove(parent, lr->y, lr->x);
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wsyncdown(parent);
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wrefresh(parent);
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result = (lr->y != ul->y && lr->x != ul->x);
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}
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}
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head_line("done");
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return result;
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}
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/*
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* Draw a box inside the given window.
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*/
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static void
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box_inside(WINDOW *win)
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{
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int y0, x0;
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int y1, x1;
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getyx(win, y0, x0);
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getmaxyx(win, y1, x1);
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mvwhline(win, 0, 0, ACS_HLINE, x1);
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mvwhline(win, y1 - 1, 0, ACS_HLINE, x1);
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mvwvline(win, 0, 0, ACS_VLINE, y1);
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mvwvline(win, 0, x1 - 1, ACS_VLINE, y1);
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mvwaddch(win, 0, 0, ACS_ULCORNER);
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mvwaddch(win, y1 - 1, 0, ACS_LLCORNER);
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mvwaddch(win, 0, x1 - 1, ACS_URCORNER);
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mvwaddch(win, y1 - 1, x1 - 1, ACS_LRCORNER);
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wsyncdown(win);
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wmove(win, y0, x0);
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wrefresh(win);
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}
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/*
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* Add a window to our list.
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*/
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static void
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add_window(WINDOW *parent, WINDOW *child)
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{
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static unsigned have = 0;
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unsigned need = ((num_windows + 1) | 31) + 1;
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keypad(child, TRUE);
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if (need > have) {
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all_windows = (FRAME *) realloc(all_windows, need * sizeof(FRAME));
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}
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all_windows[num_windows].parent = parent;
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all_windows[num_windows].child = child;
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num_windows++;
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}
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static int
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window2num(WINDOW *win)
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{
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int n;
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int result = -1;
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for (n = 0; n < (int) num_windows; ++n) {
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if (win == all_windows[n].child) {
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result = n;
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break;
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}
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}
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return result;
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}
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static WINDOW *
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parent_of(WINDOW *win)
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{
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WINDOW *result = 0;
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int n = window2num(win);
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if (n >= 0)
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result = all_windows[n].parent;
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return result;
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}
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static void
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repaint_one(WINDOW *win)
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{
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touchwin(win);
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wnoutrefresh(win);
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}
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static void
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refresh_all(WINDOW *win)
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{
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unsigned n;
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for (n = 0; n < num_windows; ++n) {
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if (all_windows[n].child != win) {
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repaint_one(all_windows[n].child);
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}
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}
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repaint_one(win);
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doupdate();
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}
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static WINDOW *
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next_window(WINDOW *win)
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{
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WINDOW *result = win;
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int n = window2num(win);
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if (n++ >= 0) {
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result = all_windows[n % num_windows].child;
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wmove(result, 0, 0);
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wrefresh(result);
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}
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return result;
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}
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static WINDOW *
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prev_window(WINDOW *win)
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{
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WINDOW *result = win;
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int n = window2num(win);
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if (n-- >= 0) {
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if (n < 0)
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n = num_windows - 1;
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result = all_windows[n % num_windows].child;
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wmove(result, 0, 0);
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wrefresh(result);
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}
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return result;
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}
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static void
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recur_move_window(WINDOW *parent, int dy, int dx)
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{
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unsigned n;
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for (n = 0; n < num_windows; ++n) {
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if (all_windows[n].parent == parent) {
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int y0, x0;
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getbegyx(all_windows[n].child, y0, x0);
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mvwin(all_windows[n].child, y0 + dy, x0 + dx);
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recur_move_window(all_windows[n].child, dy, dx);
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}
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}
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}
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/*
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* test mvwin().
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*/
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static bool
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move_window(WINDOW *win, bool recur)
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{
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WINDOW *parent = parent_of(win);
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bool result = FALSE;
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if (parent != 0) {
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bool top = (parent == stdscr);
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int min_col = top ? COL_MIN : 0;
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int max_col = top ? COL_MAX : getmaxx(parent);
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int min_line = top ? LINE_MIN : 0;
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int max_line = top ? LINE_MAX : getmaxy(parent);
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PAIR *tmp;
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head_line("Select new position for %swindow", top ? "" : "sub");
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if ((tmp = selectcell(parent,
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min_line, min_col,
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max_line, max_col)) != 0) {
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int y0, x0;
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getbegyx(parent, y0, x0);
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/*
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* Note: Moving a subwindow has the effect of moving a viewport
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* around the screen. The parent window retains the contents of
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* the subwindow in the original location, but the viewport will
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* show the contents (again) at the new location. So it will look
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* odd when testing.
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*/
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if (mvwin(win, y0 + tmp->y, x0 + tmp->x) != ERR) {
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if (recur) {
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recur_move_window(win, tmp->y, tmp->x);
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}
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refresh_all(win);
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doupdate();
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result = TRUE;
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}
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}
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}
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return result;
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}
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|
|
|
|
|
|
|
/*
|
|
|
|
* test mvderwin().
|
|
|
|
*/
|
|
|
|
static bool
|
|
|
|
move_subwin(WINDOW *win)
|
|
|
|
{
|
|
|
|
WINDOW *parent = parent_of(win);
|
|
|
|
bool result = FALSE;
|
|
|
|
|
|
|
|
if (parent != 0) {
|
|
|
|
bool top = (parent == stdscr);
|
|
|
|
if (!top) {
|
|
|
|
int min_col = top ? COL_MIN : 0;
|
|
|
|
int max_col = top ? COL_MAX : getmaxx(parent);
|
|
|
|
int min_line = top ? LINE_MIN : 0;
|
|
|
|
int max_line = top ? LINE_MAX : getmaxy(parent);
|
|
|
|
PAIR *tmp;
|
|
|
|
|
|
|
|
head_line("Select new position for subwindow");
|
|
|
|
|
|
|
|
if ((tmp = selectcell(parent,
|
|
|
|
min_line, min_col,
|
|
|
|
max_line, max_col)) != 0) {
|
|
|
|
int y0, x0;
|
|
|
|
getbegyx(parent, y0, x0);
|
|
|
|
if (mvderwin(win, y0 + tmp->y, x0 + tmp->x) != ERR) {
|
|
|
|
refresh_all(win);
|
|
|
|
doupdate();
|
|
|
|
result = TRUE;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
fill_window(WINDOW *win, chtype ch)
|
|
|
|
{
|
|
|
|
int y, x;
|
|
|
|
int y0, x0;
|
|
|
|
int y1, x1;
|
|
|
|
|
|
|
|
getyx(win, y0, x0);
|
|
|
|
getmaxyx(win, y1, x1);
|
|
|
|
for (y = 0; y < y1; ++y) {
|
|
|
|
for (x = 0; x < x1; ++x) {
|
|
|
|
mvwaddch(win, y, x, ch);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
wsyncdown(win);
|
|
|
|
wmove(win, y0, x0);
|
|
|
|
wrefresh(win);
|
|
|
|
}
|
|
|
|
|
|
|
|
#define lines_of(ul,lr) (lr.y - ul.y + 1)
|
|
|
|
#define cols_of(ul,lr) (lr.x - ul.x + 1)
|
|
|
|
#define pair_of(ul) ul.y, ul.x
|
|
|
|
|
|
|
|
static WINDOW *
|
|
|
|
create_my_window(WINDOW *current)
|
|
|
|
{
|
|
|
|
PAIR ul, lr;
|
|
|
|
WINDOW *result = 0;
|
|
|
|
|
|
|
|
if (getwindow(stdscr, &ul, &lr)) {
|
|
|
|
result = newwin(lines_of(ul, lr), cols_of(ul, lr), pair_of(ul));
|
|
|
|
if (result != 0) {
|
|
|
|
fill_window(result, 'c');
|
|
|
|
add_window(stdscr, result);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (result == 0)
|
|
|
|
result = current;
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
static WINDOW *
|
|
|
|
create_my_derwin(WINDOW *parent)
|
|
|
|
{
|
|
|
|
PAIR ul, lr;
|
|
|
|
WINDOW *result = 0;
|
|
|
|
|
|
|
|
if (getwindow(parent, &ul, &lr)) {
|
|
|
|
result = derwin(parent, lines_of(ul, lr), cols_of(ul, lr), pair_of(ul));
|
|
|
|
if (result != 0) {
|
|
|
|
fill_window(result, 'd');
|
|
|
|
add_window(parent, result);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (result == 0)
|
|
|
|
result = parent;
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
static WINDOW *
|
|
|
|
create_my_subwin(WINDOW *parent)
|
|
|
|
{
|
|
|
|
PAIR ul, lr;
|
|
|
|
WINDOW *result = 0;
|
|
|
|
|
|
|
|
if (getwindow(parent, &ul, &lr)) {
|
|
|
|
result = subwin(parent,
|
|
|
|
lines_of(ul, lr),
|
|
|
|
cols_of(ul, lr),
|
|
|
|
ul.y + getbegy(parent),
|
|
|
|
ul.x + getbegx(parent));
|
|
|
|
if (result != 0) {
|
|
|
|
fill_window(result, 's');
|
|
|
|
add_window(parent, result);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (result == 0)
|
|
|
|
result = parent;
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
show_help(WINDOW *current)
|
|
|
|
{
|
|
|
|
/* *INDENT-OFF* */
|
|
|
|
static struct {
|
|
|
|
int key;
|
2007-01-07 09:32:36 +08:00
|
|
|
const char * msg;
|
2006-12-18 12:32:42 +08:00
|
|
|
} help[] = {
|
|
|
|
{ '?', "Show this screen" },
|
|
|
|
{ 'b', "Draw a box inside the current window" },
|
|
|
|
{ 'c', "Create a new window" },
|
|
|
|
{ 'd', "Create a new derived window" },
|
|
|
|
{ 'f', "Fill the current window with the next character" },
|
|
|
|
{ 'm', "Move the current window" },
|
|
|
|
{ 'M', "Move the current window (and its children)" },
|
|
|
|
{ 'q', "Quit" },
|
|
|
|
{ 's', "Create a new subwindow" },
|
|
|
|
{ 't', "Move the current subwindow (moves content)" },
|
|
|
|
{ CTRL('L'), "Repaint all windows, doing current one last" },
|
|
|
|
{ CTRL('N'), "Cursor to next window" },
|
|
|
|
{ CTRL('P'), "Cursor to previous window" },
|
|
|
|
};
|
|
|
|
/* *INDENT-ON* */
|
|
|
|
|
|
|
|
WINDOW *mywin = newwin(LINES, COLS, 0, 0);
|
|
|
|
int row;
|
|
|
|
|
|
|
|
for (row = 0; row < LINES - 2 && row < (int) SIZEOF(help); ++row) {
|
|
|
|
wmove(mywin, row + 1, 1);
|
|
|
|
wprintw(mywin, "%s", keyname(help[row].key));
|
|
|
|
wmove(mywin, row + 1, 20);
|
|
|
|
wprintw(mywin, "%s", help[row].msg);
|
|
|
|
}
|
|
|
|
box_inside(mywin);
|
|
|
|
wmove(mywin, 1, 1);
|
|
|
|
wgetch(mywin);
|
|
|
|
delwin(mywin);
|
|
|
|
refresh_all(current);
|
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
main(int argc GCC_UNUSED, char *argv[]GCC_UNUSED)
|
|
|
|
{
|
|
|
|
WINDOW *current_win;
|
|
|
|
int ch;
|
|
|
|
bool done = FALSE;
|
|
|
|
|
|
|
|
initscr();
|
|
|
|
cbreak();
|
|
|
|
noecho();
|
|
|
|
nonl();
|
|
|
|
intrflush(stdscr, FALSE);
|
|
|
|
|
|
|
|
add_window(0, current_win = stdscr);
|
|
|
|
|
|
|
|
#ifdef NCURSES_MOUSE_VERSION
|
|
|
|
(void) mousemask(BUTTON1_CLICKED, (mmask_t *) NULL);
|
|
|
|
#endif /* NCURSES_MOUSE_VERSION */
|
|
|
|
|
|
|
|
while (!done && (ch = wgetch(current_win)) != ERR) {
|
|
|
|
switch (ch) {
|
|
|
|
case '?':
|
|
|
|
show_help(current_win);
|
|
|
|
break;
|
|
|
|
case 'b':
|
|
|
|
box_inside(current_win);
|
|
|
|
break;
|
|
|
|
case 'c':
|
|
|
|
current_win = create_my_window(current_win);
|
|
|
|
break;
|
|
|
|
case 'd':
|
|
|
|
current_win = create_my_derwin(current_win);
|
|
|
|
break;
|
|
|
|
case 'f':
|
|
|
|
fill_window(current_win, (chtype) wgetch(current_win));
|
|
|
|
break;
|
|
|
|
case 'm':
|
|
|
|
case 'M':
|
|
|
|
if (!move_window(current_win, (ch == 'M'))) {
|
|
|
|
tail_line("error");
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case 'q':
|
|
|
|
done = TRUE;
|
|
|
|
break;
|
|
|
|
case 's':
|
|
|
|
current_win = create_my_subwin(current_win);
|
|
|
|
break;
|
|
|
|
case 't':
|
|
|
|
if (!move_subwin(current_win)) {
|
|
|
|
tail_line("error");
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case CTRL('L'):
|
|
|
|
refresh_all(current_win);
|
|
|
|
break;
|
|
|
|
case CTRL('N'):
|
|
|
|
current_win = next_window(current_win);
|
|
|
|
break;
|
|
|
|
case CTRL('P'):
|
|
|
|
current_win = prev_window(current_win);
|
|
|
|
break;
|
|
|
|
#if 0
|
|
|
|
/* want to allow cursor to move around the current window too */
|
|
|
|
/* want to test the resizing of windows and subwindows too */
|
|
|
|
/* want to allow deleting a window also */
|
|
|
|
#endif
|
|
|
|
default:
|
|
|
|
tail_line("unrecognized key (use '?' for help)");
|
|
|
|
beep();
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
tail_line("size [%d,%d] begin [%d,%d] parent [%d,%d]",
|
|
|
|
getmaxy(current_win),
|
|
|
|
getmaxx(current_win),
|
|
|
|
getbegy(current_win),
|
|
|
|
getbegx(current_win),
|
|
|
|
getpary(current_win),
|
|
|
|
getparx(current_win));
|
|
|
|
wmove(current_win, 0, 0);
|
|
|
|
}
|
|
|
|
endwin();
|
|
|
|
ExitProgram(EXIT_SUCCESS);
|
|
|
|
}
|