/****************************************************************************
- * Copyright (c) 2006,2007 Free Software Foundation, Inc. *
+ * 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 *
* authorization. *
****************************************************************************/
/*
- * $Id: movewindow.c,v 1.20 2007/01/06 23:28:53 tom Exp $
+ * $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.
*
- * Thomas Dickey - 2006/2/11
+ * 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>
#undef derwin
#endif
+#ifdef NCURSES_VERSION
+#define CONST_FMT const
+#else
+#define CONST_FMT /* nothing */
+#endif
+
#undef LINE_MAX
#define LINE_MIN 2
WINDOW *child; /* the actual value */
} FRAME;
-static void head_line(const char *fmt,...) GCC_PRINTFLIKE(1, 2);
-static void tail_line(const char *fmt,...) GCC_PRINTFLIKE(1, 2);
+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 char *fmt, va_list argp)
+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;
}
static void
-head_line(const char *fmt,...)
+head_line(CONST_FMT char *fmt,...)
{
va_list argp;
}
static void
-tail_line(const char *fmt,...)
+tail_line(CONST_FMT char *fmt,...)
{
va_list 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)
+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 */
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 (;;) {
- tail_line("Upper left [%2d,%2d] Lower right [%2d,%2d] -> %d,%d",
+ 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:
getmouse(&event);
if (event.y > uli && event.x > ulj) {
- i = event.y - uli;
- j = 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;
res.x = ulj + j;
return (&res);
}
- i %= si;
- j %= sj;
+
+ 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);
+ }
}
}
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) {
+ 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, '*');
+ 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) {
+ 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, '*');
+ MvWAddCh(parent, lr->y, lr->x, '*');
wmove(parent, lr->y, lr->x);
wsyncdown(parent);
wrefresh(parent);
getyx(win, y0, x0);
getmaxyx(win, y1, x1);
- mvwhline(win, 0, 0, ACS_HLINE, x1);
- mvwhline(win, y1 - 1, 0, ACS_HLINE, 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);
+ 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);
+ 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);
keypad(child, TRUE);
if (need > have) {
- all_windows = (FRAME *) realloc(all_windows, need * sizeof(FRAME));
+ 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;
int n = window2num(win);
if (n++ >= 0) {
- result = all_windows[n % num_windows].child;
+ result = all_windows[(unsigned) n % num_windows].child;
wmove(result, 0, 0);
wrefresh(result);
}
if (n-- >= 0) {
if (n < 0)
- n = num_windows - 1;
- result = all_windows[n % num_windows].child;
+ n = (int) (num_windows - 1);
+ result = all_windows[(unsigned) n % num_windows].child;
wmove(result, 0, 0);
wrefresh(result);
}
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);
+ mvwin(all_windows[n].child, dy, dx);
recur_move_window(all_windows[n].child, dy, dx);
}
}
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");
- if ((tmp = selectcell(parent,
- min_line, min_col,
- max_line, max_col)) != 0) {
+ while ((tmp = selectcell(parent,
+ win,
+ min_line, min_col,
+ max_line, max_col,
+ FALSE,
+ &more)) != 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.
+ * 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) {
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_subwin(WINDOW *win)
+move_derwin(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;
- }
+ 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;
}
getmaxyx(win, y1, x1);
for (y = 0; y < y1; ++y) {
for (x = 0; x < x1; ++x) {
- mvwaddch(win, y, x, ch);
+ 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);
/* *INDENT-OFF* */
static struct {
int key;
- const char * msg;
+ 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" },
- { '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" },
#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);
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'))) {
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;
/* want to allow deleting a window also */
#endif
default:
+ wmove(current_win, y, x);
tail_line("unrecognized key (use '?' for help)");
beep();
continue;
projects / ncurses.git / blobdiff