Add the possibility to switch off the cursor optimization

src/fapp.cpp

@@ -114,6 +114,7 @@ void FApplication::cmd_options ()
     static struct option long_options[] =
     {
       {"encoding",            required_argument, 0,  0 },
+      {"no-optimized-cursor", no_argument,       0,  0 },
       {"vgafont",             no_argument,       0,  0 },
       {"newfont",             no_argument,       0,  0 },
       {0,                     0,                 0,  0 }
@@ -141,8 +142,13 @@ void FApplication::cmd_options ()
           setEncoding(encoding.c_str());
         }
       }
+
+      if ( strcmp(long_options[idx].name, "no-optimize-cursor")  == 0 )
+        setCursorOptimisation (false);
+
       if ( strcmp(long_options[idx].name, "vgafont")  == 0 )
         setVGAFont();
+
       if ( strcmp(long_options[idx].name, "newfont")  == 0 )
         setNewFont();
     }
@@ -1264,6 +1270,7 @@ void FApplication::print_cmd_Options ()
   ::printf("\nFinalCut Options:\n"
     "  --encoding <name>           Sets the character encoding mode\n"
     "                              {UTF8, VT100, PC, ASCII}\n"
+    "  --no-optimized-cursor       No cursor optimisation\n"
     "  --vgafont                   Set the standard vga 8x16 font\n"
     "  --newfont                   Enables the graphical font\n");
 }

src/foptimove.h

@@ -8,7 +8,7 @@
 // ▕ FOptiMove ▏
 // ▕▁▁▁▁▁▁▁▁▁▁▁▏
 
-// The cursor optimisation based on ncurses lib_mvcur.c
+// The cursor optimization based on ncurses lib_mvcur.c
 // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 #ifndef _FOPTIMOVE_H

src/fterm.cpp

@@ -87,6 +87,7 @@ bool     FTerm::vt100_console;
 bool     FTerm::ascii_console;
 bool     FTerm::NewFont;
 bool     FTerm::VGAFont;
+bool     FTerm::cursor_optimisation;
 uChar    FTerm::x11_button_state;
 termios  FTerm::term_init;
 char     FTerm::termtype[30] = "";
@@ -591,6 +592,9 @@ int FTerm::parseKeyString ( char* buffer
     buffer[n] = '\0';
   input_data_pending = bool(buffer[0] != '\0');
 
+  if ( key == 0 )  // Ctrl+Space or Ctrl+@
+    key = fc::Fckey_space;
+
   return int(key == 127 ? fc::Fkey_backspace : key);
 }
 
@@ -1328,6 +1332,9 @@ void FTerm::init()
   tmux_terminal          = \
   background_color_erase = false;
 
+  // Preset to true
+  cursor_optimisation    = true;
+
   // assertion: programm start in cooked mode
   raw_mode                = \
   input_data_pending      = \
@@ -3186,7 +3193,10 @@ void FTerm::setTermXY (register int x, register int y)
   if ( y >= term_height )
     y = term_height - 1;
 
+  if ( cursor_optimisation )
     move_str = opti->cursor_move (x_term_pos, y_term_pos, x, y);
+  else
+    move_str = tgoto(tcap[t_cursor_address].string, x, y);
   if ( move_str )
     appendOutputBuffer(move_str);
   flush_out();

src/fterm.h

@@ -186,6 +186,7 @@ class FTerm
    static bool underline;
    static bool NewFont;
    static bool VGAFont;
+   static bool cursor_optimisation;
    static uInt tabstop;
    static fc::encoding Encoding;
 
@@ -301,6 +302,7 @@ class FTerm
    static bool    setNewFont();
    static bool    isNewFont();
    static bool    setOldFont();
+   static bool    setCursorOptimisation (bool);
    static void    setConsoleCursor (fc::console_cursor_style);
    static void    getTermSize();
    static void    setTermSize (int, int);
@@ -529,6 +531,13 @@ inline bool FTerm::isTeraTerm()
 inline bool FTerm::isUrxvtTerminal()
 { return urxvt_terminal; }
 
+//----------------------------------------------------------------------
+inline bool FTerm::setCursorOptimisation (bool on)
+{
+  cursor_optimisation = on;
+  return cursor_optimisation;
+}
+
 //----------------------------------------------------------------------
 inline bool FTerm::isRaw()
 { return raw_mode; }