work around slang brokenness

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@2841 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

@@ -23,10 +23,11 @@ CVS code -
 	  rename open_pipe() execute_command(), and remove
 	  execute_command(). (DLR)
 	- Replace almost all mvwaddstr(hblank) calls with mvwhline(' ',
-	  COLS) calls, which do the same thing.  Changes to
+	  COLS) calls, which do the same thing.  New function
-	  do_browser(), blank_titlebar(), blank_topbar(), blank_edit(),
+	  nmvwhline() (since slang doesn't define mvwhline()); changes
-	  blank_statusbar(), blank_bottombars(), update_line(), and
+	  to do_browser(), blank_titlebar(), blank_topbar(),
-	  edit_refresh(). (DLR)
+	  blank_edit(), blank_statusbar(), blank_bottombars(),
+	  update_line(), and edit_refresh(). (DLR)
 - files.c:
   open_file()
 	- Assert that filename isn't NULL, and don't do anything special
@@ -82,6 +83,8 @@ CVS code -
   display_string()
 	- Display invalid multibyte sequences as Unicode 0xFFFD
 	  (Replacement Character). (DLR)
+  total_redraw()
+	- Rework to use functions that slang actually defines. (DLR)
 - configure.ac:
 	- Since we only use vsnprintf() now, remove the tests for
 	  snprintf(). (DLR)

src/nano.h

@@ -127,6 +127,12 @@
 #define getline ngetline
 #endif
 
+/* Slang curses emulation brain damage, part 3: Slang doesn't define
+ * mvwhline(), so use the version we have. */
+#ifdef USE_SLANG
+#define mvwhline nmvwhline
+#endif
+
 #define VERMSG "GNU nano " VERSION
 
 /* If we aren't using ncurses, turn the mouse support off, as it's

src/proto.h

@@ -567,6 +567,9 @@ void get_totals(const filestruct *begin, const filestruct *end, size_t
 	*lines, size_t *size);
 
 /* Public functions in winio.c. */
+#ifdef USE_SLANG
+int nmvwhline(WINDOW *win, int y, int x, char ch, int n);
+#endif
 #ifndef NANO_SMALL
 void reset_kbinput(void);
 #endif

src/winio.c

@@ -52,6 +52,19 @@ static bool resetstatuspos = FALSE;
 				/* Should we reset the cursor position
 				 * at the statusbar prompt? */
 
+#ifdef USE_SLANG
+/* Slang curses emulation brain damage, part 4: Slang doesn't define
+ * mvwhline(). */
+int nmvwhline(WINDOW *win, int y, int x, char ch, int n)
+{
+    wmove(win, y, x);
+    for (; n > 0; n--)
+	waddch(win, ch);
+
+    return 0;
+}
+#endif
+
 /* Control character compatibility:
  *
  * - NANO_BACKSPACE_KEY is Ctrl-H, which is Backspace under ASCII, ANSI,
@@ -3776,14 +3789,8 @@ int do_yesno(bool all, const char *msg)
 
 void total_redraw(void)
 {
-#ifdef USE_SLANG
+    touchwin(stdscr);
-    /* Slang curses emulation brain damage, part 3: Slang doesn't define
+    wrefresh(stdscr);
-     * curscr. */
-    SLsmg_touch_screen();
-    SLsmg_refresh();
-#else
-    wrefresh(curscr);
-#endif
 }
 
 void total_refresh(void)