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-rw-r--r--ncurses-5.3/c++/cursesw.cc456
1 files changed, 456 insertions, 0 deletions
diff --git a/ncurses-5.3/c++/cursesw.cc b/ncurses-5.3/c++/cursesw.cc
new file mode 100644
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+++ b/ncurses-5.3/c++/cursesw.cc
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+// * this is for making emacs happy: -*-Mode: C++;-*-
+
+/*
+ Copyright (C) 1989 Free Software Foundation
+ written by Eric Newton (newton@rocky.oswego.edu)
+
+ This file is part of the GNU C++ Library. This library is free
+ software; you can redistribute it and/or modify it under the terms of
+ the GNU Library General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at your
+ option) any later version. This library is distributed in the hope
+ that it will be useful, but WITHOUT ANY WARRANTY; without even the
+ implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ PURPOSE. See the GNU Library General Public License for more details.
+ You should have received a copy of the GNU Library General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+
+ modified by Ulrich Drepper (drepper@karlsruhe.gmd.de)
+ and Anatoly Ivasyuk (anatoly@nick.csh.rit.edu)
+
+ modified by Juergen Pfeifer
+ Contact: http://www.familiepfeifer.de/Contact.aspx?Lang=en
+*/
+
+#include "internal.h"
+#include "cursesw.h"
+
+MODULE_ID("$Id$")
+
+#define COLORS_NEED_INITIALIZATION -1
+#define COLORS_NOT_INITIALIZED 0
+#define COLORS_MONOCHROME 1
+#define COLORS_ARE_REALLY_THERE 2
+
+// declare static variables for the class
+long NCursesWindow::count = 0L;
+bool NCursesWindow::b_initialized = FALSE;
+
+/*
+ * The ncurses library has a fallback for vsscanf(), which may work...
+ */
+#if !(USE_STRSTREAM_VSCAN || USE_STRSTREAM_VSCAN_CAST)
+# undef USE_STDIO_VSCAN
+# define USE_STDIO_VSCAN 1
+#endif
+
+#if defined(__GNUG__)
+# ifndef _IO_va_list
+# define _IO_va_list char *
+# endif
+#endif
+
+int
+NCursesWindow::scanw(const char* fmt, ...)
+{
+ int result = ERR;
+ char buf[BUFSIZ];
+
+ if (::wgetnstr(w, buf, sizeof(buf)) != ERR) {
+ va_list args;
+ va_start(args, fmt);
+#if USE_STDIO_VSCAN
+ if (::vsscanf(buf, fmt, args) != -1)
+ result = OK;
+#elif USE_STRSTREAM_VSCAN /* powerpc, os390 */
+ strstreambuf ss(buf, sizeof(buf));
+ if (ss.vscan(fmt, args) != -1)
+ result = OK;
+#elif USE_STRSTREAM_VSCAN_CAST /* pre-gcc 3.0 */
+ strstreambuf ss(buf, sizeof(buf));
+ if (ss.vscan(fmt, (_IO_va_list)args) != -1)
+ result = OK;
+#endif
+ va_end(args);
+ }
+ return result;
+}
+
+
+int
+NCursesWindow::scanw(int y, int x, const char* fmt, ...)
+{
+ int result = ERR;
+ char buf[BUFSIZ];
+
+ if (::wmove(w, y, x) != ERR) {
+ if (::wgetnstr(w, buf, sizeof(buf)) != ERR) {
+ va_list args;
+ va_start(args, fmt);
+#if USE_STDIO_VSCAN
+ if (::vsscanf(buf, fmt, args) != -1)
+ result = OK;
+#elif USE_STRSTREAM_VSCAN /* powerpc, os390 */
+ strstreambuf ss(buf, sizeof(buf));
+ if (ss.vscan(fmt, args) != -1)
+ result = OK;
+#elif USE_STRSTREAM_VSCAN_CAST /* pre-gcc 3.0 */
+ strstreambuf ss(buf, sizeof(buf));
+ if (ss.vscan(fmt, (_IO_va_list)args) != -1)
+ result = OK;
+#endif
+ va_end(args);
+ }
+ }
+ return result;
+}
+
+
+int
+NCursesWindow::printw(const char * fmt, ...)
+{
+ va_list args;
+ va_start(args, fmt);
+ char buf[BUFSIZ];
+ ::vsprintf(buf, fmt, args);
+ va_end(args);
+ return waddstr(w, buf);
+}
+
+
+int
+NCursesWindow::printw(int y, int x, const char * fmt, ...)
+{
+ va_list args;
+ va_start(args, fmt);
+ int result = ::wmove(w, y, x);
+ if (result == OK) {
+ char buf[BUFSIZ];
+ ::vsprintf(buf, fmt, args);
+ result = waddstr(w, buf);
+ }
+ va_end(args);
+ return result;
+}
+
+
+void
+NCursesWindow::init(void)
+{
+ leaveok(0);
+ keypad(1);
+ meta(1);
+}
+
+void
+NCursesWindow::err_handler(const char *msg) const THROWS(NCursesException)
+{
+ THROW(new NCursesException(msg));
+}
+
+void
+NCursesWindow::initialize() {
+ if (!b_initialized) {
+ ::initscr();
+ b_initialized = TRUE;
+ if (colorInitialized==COLORS_NEED_INITIALIZATION) {
+ colorInitialized=COLORS_NOT_INITIALIZED;
+ useColors();
+ }
+ ::noecho();
+ ::cbreak();
+ }
+}
+
+NCursesWindow::NCursesWindow() {
+ initialize();
+
+ w = (WINDOW *)0;
+ init();
+ alloced = FALSE;
+ subwins = par = sib = 0;
+ count++;
+}
+
+NCursesWindow::NCursesWindow(int lines, int cols, int begin_y, int begin_x)
+{
+ initialize();
+
+ w = ::newwin(lines, cols, begin_y, begin_x);
+ if (w == 0) {
+ err_handler("Cannot construct window");
+ }
+ init();
+
+ alloced = TRUE;
+ subwins = par = sib = 0;
+ count++;
+}
+
+NCursesWindow::NCursesWindow(WINDOW* &window)
+{
+ initialize();
+
+ w = window;
+ init();
+ alloced = FALSE;
+ subwins = par = sib = 0;
+ count++;
+}
+
+NCursesWindow::NCursesWindow(NCursesWindow& win, int l, int c,
+ int begin_y, int begin_x, char absrel)
+{
+ initialize();
+ if (absrel == 'a') { // absolute origin
+ begin_y -= win.begy();
+ begin_x -= win.begx();
+ }
+
+ // Even though we treat subwindows as a tree, the standard curses
+ // library needs the `subwin' call to link to the parent in
+ // order to correctly perform refreshes, etc.
+ // Friendly enough, this also works for pads.
+ w = ::derwin(win.w, l, c, begin_y, begin_x);
+ if (w == 0) {
+ err_handler("Cannot construct subwindow");
+ }
+
+ par = &win;
+ sib = win.subwins;
+ win.subwins = this;
+ subwins = 0;
+ alloced = TRUE;
+ count++;
+}
+
+NCursesWindow::NCursesWindow(NCursesWindow& win,
+ bool do_box NCURSES_PARAM_INIT(TRUE))
+{
+ initialize();
+ w = :: derwin(win.w,win.height()-2,win.width()-2,1,1);
+ if (w == 0) {
+ err_handler("Cannot construct subwindow");
+ }
+
+ par = &win;
+ sib = win.subwins;
+ win.subwins = this;
+ subwins = 0;
+ alloced = TRUE;
+ count++;
+
+ if (do_box) {
+ win.box();
+ win.touchwin();
+ }
+}
+
+NCursesWindow NCursesWindow::Clone() {
+ WINDOW *d = ::dupwin(w);
+ NCursesWindow W(d);
+ W.subwins = subwins;
+ W.sib = sib;
+ W.par = par;
+ W.alloced = alloced;
+ return W;
+}
+
+typedef int (*RIPOFFINIT)(NCursesWindow&);
+static RIPOFFINIT R_INIT[5]; // There can't be more
+static int r_init_idx = 0;
+static RIPOFFINIT* prip = R_INIT;
+
+extern "C" int _nc_ripoffline(int,int (*init)(WINDOW*,int));
+
+NCursesWindow::NCursesWindow(WINDOW *win, int cols) {
+ initialize();
+ w = win;
+ assert((w->_maxx+1)==cols);
+ alloced = FALSE;
+ subwins = par = sib = 0;
+}
+
+int NCursesWindow::ripoff_init(WINDOW *w, int cols)
+{
+ int res = ERR;
+
+ RIPOFFINIT init = *prip++;
+ if (init) {
+ NCursesWindow* W = new NCursesWindow(w,cols);
+ res = init(*W);
+ }
+ return res;
+}
+
+int NCursesWindow::ripoffline(int ripoff_lines,
+ int (*init)(NCursesWindow& win)) {
+ int code = ::_nc_ripoffline(ripoff_lines,ripoff_init);
+ if (code==OK && init && ripoff_lines) {
+ R_INIT[r_init_idx++] = init;
+ }
+ return code;
+}
+
+bool
+NCursesWindow::isDescendant(NCursesWindow& win) {
+ for (NCursesWindow* p = subwins; p != NULL; p = p->sib) {
+ if (p==&win)
+ return TRUE;
+ else {
+ if (p->isDescendant(win))
+ return TRUE;
+ }
+ }
+ return FALSE;
+}
+
+void
+NCursesWindow::kill_subwindows()
+{
+ for (NCursesWindow* p = subwins; p != 0; p = p->sib) {
+ p->kill_subwindows();
+ if (p->alloced) {
+ if (p->w != 0)
+ ::delwin(p->w);
+ p->alloced = FALSE;
+ }
+ p->w = 0; // cause a run-time error if anyone attempts to use...
+ }
+}
+
+
+NCursesWindow::~NCursesWindow()
+{
+ kill_subwindows();
+
+ if (par != 0) { // Snip us from the parent's list of subwindows.
+ NCursesWindow * win = par->subwins;
+ NCursesWindow * trail = 0;
+ for (;;) {
+ if (win == 0)
+ break;
+ else if (win == this) {
+ if (trail != 0)
+ trail->sib = win->sib;
+ else
+ par->subwins = win->sib;
+ break;
+ } else {
+ trail = win;
+ win = win->sib;
+ }
+ }
+ }
+
+ if (alloced && w != 0)
+ ::delwin(w);
+
+ if (alloced) {
+ --count;
+ if (count == 0) {
+ ::endwin();
+ }
+ else if (count < 0) { // cannot happen!
+ err_handler("Too many windows destroyed");
+ }
+ }
+}
+
+// ---------------------------------------------------------------------
+// Color stuff
+//
+int NCursesWindow::colorInitialized = COLORS_NOT_INITIALIZED;
+
+void
+NCursesWindow::useColors(void)
+{
+ if (colorInitialized == COLORS_NOT_INITIALIZED) {
+ if (b_initialized) {
+ if (::has_colors()) {
+ ::start_color();
+ colorInitialized = COLORS_ARE_REALLY_THERE;
+ }
+ else
+ colorInitialized = COLORS_MONOCHROME;
+ }
+ else
+ colorInitialized = COLORS_NEED_INITIALIZATION;
+ }
+}
+
+short
+NCursesWindow::getcolor(int getback) const
+{
+ short fore, back;
+
+ if (colorInitialized==COLORS_ARE_REALLY_THERE) {
+ if (::pair_content((short)PAIR_NUMBER(w->_attrs), &fore, &back))
+ err_handler("Can't get color pair");
+ }
+ else {
+ // Monochrome means white on black
+ back = COLOR_BLACK;
+ fore = COLOR_WHITE;
+ }
+ return getback ? back : fore;
+}
+
+int NCursesWindow::NumberOfColors()
+{
+ if (colorInitialized==COLORS_ARE_REALLY_THERE)
+ return COLORS;
+ else
+ return 1; // monochrome (actually there are two ;-)
+}
+
+short
+NCursesWindow::getcolor() const
+{
+ if (colorInitialized==COLORS_ARE_REALLY_THERE)
+ return PAIR_NUMBER(w->_attrs);
+ else
+ return 0; // we only have pair zero
+}
+
+int
+NCursesWindow::setpalette(short fore, short back, short pair)
+{
+ if (colorInitialized==COLORS_ARE_REALLY_THERE)
+ return ::init_pair(pair, fore, back);
+ else
+ return OK;
+}
+
+int
+NCursesWindow::setpalette(short fore, short back)
+{
+ if (colorInitialized==COLORS_ARE_REALLY_THERE)
+ return setpalette(fore, back, (short)PAIR_NUMBER(w->_attrs));
+ else
+ return OK;
+}
+
+
+int
+NCursesWindow::setcolor(short pair)
+{
+ if (colorInitialized==COLORS_ARE_REALLY_THERE) {
+ if ((pair < 1) || (pair > COLOR_PAIRS))
+ err_handler("Can't set color pair");
+
+ attroff(A_COLOR);
+ attrset(COLOR_PAIR(pair));
+ }
+ return OK;
+}
+
+#if HAVE_HAS_KEY
+extern "C" int _nc_has_mouse(void);
+
+bool NCursesWindow::has_mouse() const {
+ return ((::has_key(KEY_MOUSE) || ::_nc_has_mouse())
+ ? TRUE : FALSE);
+}
+#endif
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