X-Git-Url: http://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=c%2B%2B%2Fcursesw.cc;h=905a7b52c20d9a5a0536af4fd9744efc0ddf3e30;hp=d1354425666537994e5fb9343a86d983f4361f4b;hb=46722468f47c2b77b3987729b4bcf2321cccfd01;hpb=3a9b6a3bf0269231bef7de74757a910dedd04e0c

diff --git a/c++/cursesw.cc b/c++/cursesw.cc
index d1354425..905a7b52 100644
--- a/c++/cursesw.cc
+++ b/c++/cursesw.cc
@@ -19,66 +19,91 @@
   modified by Ulrich Drepper  (drepper@karlsruhe.gmd.de)
           and Anatoly Ivasyuk (anatoly@nick.csh.rit.edu)
 
-  modified by Juergen Pfeifer (Juergen.Pfeifer@T-Online.de)	  
+  modified by Juergen Pfeifer
+  Contact: http://www.familiepfeifer.de/Contact.aspx?Lang=en
 */
 
 #include "internal.h"
-
-MODULE_ID("$Id: cursesw.cc,v 1.5 1997/05/05 20:04:59 tom Exp $")
-
-#pragma implementation
-
 #include "cursesw.h"
 
+MODULE_ID("$Id: cursesw.cc,v 1.25 2002/07/06 15:47:52 juergen Exp $")
+
 #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
-int NCursesWindow::count = 0;
+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, ...)
 {
-#if defined(__GNUG__)
-    va_list args;
-    va_start(args, fmt);
+    int result = ERR;
     char buf[BUFSIZ];
-    int result = wgetstr(w, buf);
-    if (result == OK) {
-	strstreambuf ss(buf, BUFSIZ);
-	result = ss.vscan(fmt, args);
+
+    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);
     }
-    va_end(args);
     return result;
-#else
-    return ERR;
-#endif
 }
 
 
 int
 NCursesWindow::scanw(int y, int x, const char* fmt, ...)
 {
-#if defined(__GNUG__)
-    va_list args;
-    va_start(args, fmt);
+    int result = ERR;
     char buf[BUFSIZ];
-    int result = wmove(w, y, x);
-    if (result == OK) {
-	result = wgetstr(w, buf);
-	if (result == OK) {
-	    strstreambuf ss(buf, BUFSIZ);
-	    result = ss.vscan(fmt, args);
+
+    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);
 	}
     }
-    va_end(args);
     return result;
-#else
-    return ERR;
-#endif
 }
 
 
@@ -88,7 +113,7 @@ NCursesWindow::printw(const char * fmt, ...)
     va_list args;
     va_start(args, fmt);
     char buf[BUFSIZ];
-    vsprintf(buf, fmt, args);
+    ::vsprintf(buf, fmt, args);
     va_end(args);
     return waddstr(w, buf);
 }
@@ -99,10 +124,10 @@ NCursesWindow::printw(int y, int x, const char * fmt, ...)
 {
     va_list args;
     va_start(args, fmt);
-    int result = wmove(w, y, x);
+    int result = ::wmove(w, y, x);
     if (result == OK) {
 	char buf[BUFSIZ];
-	vsprintf(buf, fmt, args);
+	::vsprintf(buf, fmt, args);
 	result = waddstr(w, buf);
     }
     va_end(args);
@@ -113,10 +138,9 @@ NCursesWindow::printw(int y, int x, const char * fmt, ...)
 void
 NCursesWindow::init(void)
 {
-    noecho();
-    cbreak();
     leaveok(0);
     keypad(1);
+    meta(1);
 }
 
 void
@@ -127,19 +151,31 @@ NCursesWindow::err_handler(const char *msg) const THROWS(NCursesException)
 
 void
 NCursesWindow::initialize() {
-  ::initscr();
-  if (colorInitialized==COLORS_NEED_INITIALIZATION) {
-    colorInitialized=COLORS_NOT_INITIALIZED;
-    count++;
-    useColors();
-    count--;
+  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)
 {
-    if (count==0)
-      initialize();
+    initialize();
 
     w = ::newwin(lines, cols, begin_y, begin_x);
     if (w == 0) {
@@ -147,40 +183,36 @@ NCursesWindow::NCursesWindow(int lines, int cols, int begin_y, int begin_x)
     }
     init();
 
-    alloced = 1;
+    alloced = TRUE;
     subwins = par = sib = 0;
     count++;
 }
 
 NCursesWindow::NCursesWindow(WINDOW* &window)
 {
-    if (count==0)
-      initialize();
-    
+    initialize();
+
     w = window;
     init();
-    alloced = 0;
+    alloced = FALSE;
     subwins = par = sib = 0;
     count++;
 }
 
-
 NCursesWindow::NCursesWindow(NCursesWindow& win, int l, int c,
-			     int by, int bx, char absrel)
+			     int begin_y, int begin_x, char absrel)
 {
-    if (absrel == 'r') { // relative origin 
-	by += win.begy();
-	bx += win.begx();
+    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 root in
+    // library needs the `subwin' call to link to the parent in
     // order to correctly perform refreshes, etc.
-
-    NCursesWindow* root = &win;
-    while (root->par != 0) root = root->par;
-
-    w = subwin(root->w, l, c, by, bx);
+    // 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");
     }
@@ -189,10 +221,78 @@ NCursesWindow::NCursesWindow(NCursesWindow& win, int l, int c,
     sib = win.subwins;
     win.subwins = this;
     subwins = 0;
-    alloced = 1;
+    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) {
@@ -214,7 +314,7 @@ NCursesWindow::kill_subwindows()
 	if (p->alloced) {
 	    if (p->w != 0)
 		::delwin(p->w);
-	    p->alloced = 0;
+	    p->alloced = FALSE;
 	}
 	p->w = 0; // cause a run-time error if anyone attempts to use...
     }
@@ -245,13 +345,16 @@ NCursesWindow::~NCursesWindow()
     }
 
     if (alloced && w != 0)
-	delwin(w);
+	::delwin(w);
 
-    --count;
-    if (count == 0)
-	endwin();
-    else if (count < 0) { // cannot happen!
+    if (alloced) {
+      --count;
+      if (count == 0) {
+	::endwin();
+      }
+      else if (count < 0) { // cannot happen!
 	err_handler("Too many windows destroyed");
+      }
     }
 }
 
@@ -263,10 +366,10 @@ int NCursesWindow::colorInitialized = COLORS_NOT_INITIALIZED;
 void
 NCursesWindow::useColors(void)
 {
-    if (colorInitialized == COLORS_NOT_INITIALIZED) {        
-      if (count>0) {
-	if (has_colors()) {
-	  start_color();
+    if (colorInitialized == COLORS_NOT_INITIALIZED) {
+      if (b_initialized) {
+	if (::has_colors()) {
+	  ::start_color();
 	  colorInitialized = COLORS_ARE_REALLY_THERE;
 	}
 	else
@@ -278,12 +381,12 @@ NCursesWindow::useColors(void)
 }
 
 short
-NCursesWindow::getcolor(int getback) const 
+NCursesWindow::getcolor(int getback) const
 {
     short fore, back;
 
     if (colorInitialized==COLORS_ARE_REALLY_THERE) {
-      if (pair_content(PAIR_NUMBER(w->_attrs), &fore, &back))
+      if (::pair_content((short)PAIR_NUMBER(w->_attrs), &fore, &back))
 	err_handler("Can't get color pair");
     }
     else {
@@ -303,7 +406,7 @@ int NCursesWindow::NumberOfColors()
 }
 
 short
-NCursesWindow::getcolor() const 
+NCursesWindow::getcolor() const
 {
   if (colorInitialized==COLORS_ARE_REALLY_THERE)
     return PAIR_NUMBER(w->_attrs);
@@ -315,7 +418,7 @@ int
 NCursesWindow::setpalette(short fore, short back, short pair)
 {
   if (colorInitialized==COLORS_ARE_REALLY_THERE)
-    return init_pair(pair, fore, back);
+    return ::init_pair(pair, fore, back);
   else
     return OK;
 }
@@ -324,7 +427,7 @@ int
 NCursesWindow::setpalette(short fore, short back)
 {
   if (colorInitialized==COLORS_ARE_REALLY_THERE)
-    return setpalette(fore, back, PAIR_NUMBER(w->_attrs));
+    return setpalette(fore, back, (short)PAIR_NUMBER(w->_attrs));
   else
     return OK;
 }
@@ -336,9 +439,18 @@ 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