Gestionnaire de fichiers

Gestionnaire de fichiers - Editer - /usr/share/doc/ncurses-devel-5.9/test/movewindow.c

Arrière
/**************************************************************************** * Copyright (c) 2006-2012,2013 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: movewindow.c,v 1.39 2013/05/04 19:41:02 tom Exp $ * * Demonstrate move functions for windows and derived windows from the curses * library. * * Author: Thomas E. Dickey / / derwin mvderwin subwin mvwin TODO: add command to reset subwindow's origin to coincide with parent. add command to delete subwindow (check if it has subwindows though) / #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 failed(const char s) { perror(s); endwin(); ExitProgram(EXIT_FAILURE); } 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, WINDOW child, int uli, int ulj, int lri, int lrj, bool relative, bool * more) { 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; if (child != 0) { if (relative) { getparyx(child, i, j); } else { getbegyx(child, i, j); i -= uli + getbegy(parent); j -= ulj + getbegx(parent); } } if (more) more = FALSE; for (;;) { bool moved = FALSE; tail_line("Upper left [%2d,%2d] Lower right [%2d,%2d] -> %d,%d -> %d,%d", uli, ulj, lri, lrj, i, j, uli + i, ulj + j); wmove(parent, uli + i, ulj + j); switch (wgetch(parent)) { case KEY_UP: i += si - 1; moved = TRUE; break; case KEY_DOWN: i++; moved = TRUE; break; case KEY_LEFT: j += sj - 1; moved = TRUE; break; case KEY_RIGHT: j++; moved = TRUE; 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) { if (parent != stdscr) { i = event.y - getbegy(parent) - uli; j = event.x - getbegx(parent) - ulj; } else { i = event.y - uli; j = event.x - ulj; } } else { beep(); break; } } / FALLTHRU / #endif default: res.y = uli + i; res.x = ulj + j; return (&res); } if (si <= 0) i = 0; else i %= si; if (sj <= 0) j = 0; else j %= sj; / * If the caller can handle continuous movement, return the result. / if (moved && more) { more = TRUE; res.y = uli + i; res.x = ulj + j; return (&res); } } } /* * 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, 0, min_line, min_col, max_line, max_col, FALSE, (bool ) 0)) != 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, 0, ul->y, ul->x, max_line, max_col, FALSE, (bool ) 0)) != 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); if (!all_windows) failed("add_window"); } 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) { mvwin(all_windows[n].child, dy, 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; bool more; head_line("Select new position for %swindow", top ? "" : "sub"); while ((tmp = selectcell(parent, win, min_line, min_col, max_line, max_col, FALSE, &more)) != 0) { int y0, x0; getbegyx(parent, y0, x0); /* * 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; } else { result = FALSE; } if (!more) break; } } head_line("done"); return result; } static void show_derwin(WINDOW win) { int pary, parx, maxy, maxx; getmaxyx(win, maxy, maxx); getparyx(win, pary, parx); head_line("Select new position for derived window at %d,%d (%d,%d)", pary, parx, maxy, maxx); } /* * test mvderwin(). / static bool move_derwin(WINDOW win) { 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; bool more; show_derwin(win); while ((tmp = selectcell(parent, win, min_line, min_col, max_line, max_col, TRUE, &more)) != 0) { if (mvderwin(win, tmp->y, tmp->x) != ERR) { refresh_all(win); doupdate(); repaint_one(win); doupdate(); result = TRUE; show_derwin(win); } else { flash(); } if (!more) break; } } head_line("done"); 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); } static void fill_with_pattern(WINDOW win) { int y, x; int y0, x0; int y1, x1; int ch = 'a'; getyx(win, y0, x0); getmaxyx(win, y1, x1); for (y = 0; y < y1; ++y) { for (x = 0; x < x1; ++x) { MvWAddCh(win, y, x, (chtype) ch); if (++ch > 'z') ch = 'a'; } } 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" }, { 'D', "Move derived window (moves viewport)" }, { 'f', "Fill the current window with the next character" }, { 'F', "Fill the current window with a pattern" }, { 'm', "Move the current window" }, { 'M', "Move the current window (and its children)" }, { 'q', "Quit" }, { 's', "Create a new subwindow" }, { 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) { int y, x; getyx(current_win, y, x); 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 'D': if (!move_derwin(current_win)) { tail_line("error"); continue; } break; case 'f': fill_window(current_win, (chtype) wgetch(current_win)); break; case 'F': fill_with_pattern(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 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: wmove(current_win, y, x); 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); }

| ver. 1.4 | Github | . | PHP 8.0.30 | Génération de la page: 1.86 | proxy | phpinfo | Réglages