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Diffstat (limited to 'ncurses-5.9/test/movewindow.c')
| -rw-r--r-- | ncurses-5.9/test/movewindow.c | 639 |
1 files changed, 639 insertions, 0 deletions
diff --git a/ncurses-5.9/test/movewindow.c b/ncurses-5.9/test/movewindow.c new file mode 100644 index 0000000..dcb03ee --- /dev/null +++ b/ncurses-5.9/test/movewindow.c @@ -0,0 +1,639 @@ +/**************************************************************************** + * Copyright (c) 2006-2008,2010 Free Software Foundation, Inc. * + * * + * Permission is hereby granted, free of charge, to any person obtaining a * + * copy of this software and associated documentation files (the * + * "Software"), to deal in the Software without restriction, including * + * without limitation the rights to use, copy, modify, merge, publish, * + * distribute, distribute with modifications, sublicense, and/or sell * + * copies of the Software, and to permit persons to whom the Software is * + * furnished to do so, subject to the following conditions: * + * * + * The above copyright notice and this permission notice shall be included * + * in all copies or substantial portions of the Software. * + * * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * + * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * + * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * + * * + * Except as contained in this notice, the name(s) of the above copyright * + * holders shall not be used in advertising or otherwise to promote the * + * sale, use or other dealings in this Software without prior written * + * authorization. * + ****************************************************************************/ +/* + * $Id$ + * + * Demonstrate move functions for windows and derived windows from the curses + * library. + * + * Thomas Dickey - 2006/2/11 + */ +/* +derwin +mvderwin +subwin +mvwin + */ + +#include <test.priv.h> +#include <stdarg.h> + +#ifdef HAVE_XCURSES +#undef derwin +#endif + +#ifdef NCURSES_VERSION +#define CONST_FMT const +#else +#define CONST_FMT /* nothing */ +#endif + +#undef LINE_MAX + +#define LINE_MIN 2 +#define LINE_MAX (LINES - 2) +#define COL_MIN 2 +#define COL_MAX (COLS - 2) + +typedef struct { + int y, x; +} PAIR; + +typedef struct { + WINDOW *parent; /* need this since WINDOW->_parent is not portable */ + WINDOW *child; /* the actual value */ +} FRAME; + +static void head_line(CONST_FMT char *fmt,...) GCC_PRINTFLIKE(1, 2); +static void tail_line(CONST_FMT char *fmt,...) GCC_PRINTFLIKE(1, 2); + +static unsigned num_windows; +static FRAME *all_windows; + +static void +message(int lineno, CONST_FMT char *fmt, va_list argp) +{ + int y, x; + + getyx(stdscr, y, x); + move(lineno, 0); + clrtoeol(); + +#ifdef HAVE_XCURSES + { + char buffer[1024]; + vsprintf(buffer, fmt, argp); + addstr(buffer); + } +#else + vwprintw(stdscr, fmt, argp); +#endif + + move(y, x); + refresh(); +} + +static void +head_line(CONST_FMT char *fmt,...) +{ + va_list argp; + + va_start(argp, fmt); + message(0, fmt, argp); + va_end(argp); +} + +static void +tail_line(CONST_FMT char *fmt,...) +{ + va_list argp; + + va_start(argp, fmt); + message(LINES - 1, fmt, argp); + va_end(argp); +} + +/* + * Arrow keys move cursor, return location at current on non-arrow key. + */ +static PAIR * +selectcell(WINDOW *parent, int uli, int ulj, int lri, int lrj) +{ + static PAIR res; /* result cell */ + int si = lri - uli + 1; /* depth of the select area */ + int sj = lrj - ulj + 1; /* width of the select area */ + int i = 0, j = 0; /* offsets into the select area */ + + res.y = uli; + res.x = ulj; + for (;;) { + tail_line("Upper left [%2d,%2d] Lower right [%2d,%2d] -> %d,%d", + uli, ulj, + lri, lrj, + uli + i, ulj + j); + wmove(parent, uli + i, ulj + j); + + switch (wgetch(parent)) { + case KEY_UP: + i += si - 1; + break; + case KEY_DOWN: + i++; + break; + case KEY_LEFT: + j += sj - 1; + break; + case KEY_RIGHT: + j++; + break; + case QUIT: + case ESCAPE: + return ((PAIR *) 0); +#ifdef NCURSES_MOUSE_VERSION + case KEY_MOUSE: + { + MEVENT event; + + getmouse(&event); + if (event.y > uli && event.x > ulj) { + i = event.y - uli; + j = event.x - ulj; + } else { + beep(); + break; + } + } + /* FALLTHRU */ +#endif + default: + res.y = uli + i; + res.x = ulj + j; + return (&res); + } + i %= si; + j %= sj; + } +} + +/* + * Ask user for a window definition. + */ +static bool +getwindow(WINDOW *parent, PAIR * ul, PAIR * lr) +{ + int min_col = (parent == stdscr) ? COL_MIN : 0; + int max_col = (parent == stdscr) ? COL_MAX : getmaxx(parent); + int min_line = (parent == stdscr) ? LINE_MIN : 0; + int max_line = (parent == stdscr) ? LINE_MAX : getmaxy(parent); + PAIR *tmp; + bool result = FALSE; + + head_line("Use arrows to move cursor, anything else to mark corner 1"); + if ((tmp = selectcell(parent, min_line, min_col, max_line, max_col)) != 0) { + *ul = *tmp; + MvWAddCh(parent, ul->y, ul->x, '*'); + + head_line("Use arrows to move cursor, anything else to mark corner 2"); + if ((tmp = selectcell(parent, ul->y, ul->x, max_line, max_col)) != 0) { + *lr = *tmp; + MvWAddCh(parent, lr->y, lr->x, '*'); + wmove(parent, lr->y, lr->x); + wsyncdown(parent); + wrefresh(parent); + result = (lr->y != ul->y && lr->x != ul->x); + } + } + head_line("done"); + return result; +} + +/* + * Draw a box inside the given window. + */ +static void +box_inside(WINDOW *win) +{ + int y0, x0; + int y1, x1; + + getyx(win, y0, x0); + getmaxyx(win, y1, x1); + + MvWHLine(win, 0, 0, ACS_HLINE, x1); + MvWHLine(win, y1 - 1, 0, ACS_HLINE, x1); + + MvWVLine(win, 0, 0, ACS_VLINE, y1); + MvWVLine(win, 0, x1 - 1, ACS_VLINE, y1); + + MvWAddCh(win, 0, 0, ACS_ULCORNER); + MvWAddCh(win, y1 - 1, 0, ACS_LLCORNER); + MvWAddCh(win, 0, x1 - 1, ACS_URCORNER); + MvWAddCh(win, y1 - 1, x1 - 1, ACS_LRCORNER); + + wsyncdown(win); + wmove(win, y0, x0); + wrefresh(win); +} + +/* + * Add a window to our list. + */ +static void +add_window(WINDOW *parent, WINDOW *child) +{ + static unsigned have = 0; + unsigned need = ((num_windows + 1) | 31) + 1; + + keypad(child, TRUE); + if (need > have) { + all_windows = typeRealloc(FRAME, need, all_windows); + } + all_windows[num_windows].parent = parent; + all_windows[num_windows].child = child; + num_windows++; +} + +static int +window2num(WINDOW *win) +{ + int n; + int result = -1; + for (n = 0; n < (int) num_windows; ++n) { + if (win == all_windows[n].child) { + result = n; + break; + } + } + return result; +} + +static WINDOW * +parent_of(WINDOW *win) +{ + WINDOW *result = 0; + int n = window2num(win); + if (n >= 0) + result = all_windows[n].parent; + return result; +} + +static void +repaint_one(WINDOW *win) +{ + touchwin(win); + wnoutrefresh(win); +} + +static void +refresh_all(WINDOW *win) +{ + unsigned n; + + for (n = 0; n < num_windows; ++n) { + if (all_windows[n].child != win) { + repaint_one(all_windows[n].child); + } + } + + repaint_one(win); + doupdate(); +} + +static WINDOW * +next_window(WINDOW *win) +{ + WINDOW *result = win; + int n = window2num(win); + + if (n++ >= 0) { + result = all_windows[(unsigned) n % num_windows].child; + wmove(result, 0, 0); + wrefresh(result); + } + return result; +} + +static WINDOW * +prev_window(WINDOW *win) +{ + WINDOW *result = win; + int n = window2num(win); + + if (n-- >= 0) { + if (n < 0) + n = (int) (num_windows - 1); + result = all_windows[(unsigned) n % num_windows].child; + wmove(result, 0, 0); + wrefresh(result); + } + return result; +} + +static void +recur_move_window(WINDOW *parent, int dy, int dx) +{ + unsigned n; + + for (n = 0; n < num_windows; ++n) { + if (all_windows[n].parent == parent) { + int y0, x0; + + getbegyx(all_windows[n].child, y0, x0); + mvwin(all_windows[n].child, y0 + dy, x0 + dx); + recur_move_window(all_windows[n].child, dy, dx); + } + } +} + +/* + * test mvwin(). + */ +static bool +move_window(WINDOW *win, bool recur) +{ + WINDOW *parent = parent_of(win); + bool result = FALSE; + + if (parent != 0) { + bool top = (parent == stdscr); + 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 %swindow", top ? "" : "sub"); + + if ((tmp = selectcell(parent, + min_line, min_col, + max_line, max_col)) != 0) { + int y0, x0; + getbegyx(parent, y0, x0); + /* + * Note: Moving a subwindow has the effect of moving a viewport + * around the screen. The parent window retains the contents of + * the subwindow in the original location, but the viewport will + * show the contents (again) at the new location. So it will look + * odd when testing. + */ + if (mvwin(win, y0 + tmp->y, x0 + tmp->x) != ERR) { + if (recur) { + recur_move_window(win, tmp->y, tmp->x); + } + refresh_all(win); + doupdate(); + result = TRUE; + } + } + } + return result; +} + +/* + * 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; + CONST_FMT char * msg; + } 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); +} |