Improvements for ansi terminal emulators

ChangeLog

@@ -1,4 +1,5 @@
 2016-11-26  Markus Gans  <guru.mail@muenster.de>
+	* Improvements for ansi terminal emulators
 	* Add the opti-move test program
 	* Optimized the terminal clear screen
 

src/fapp.cpp

@@ -371,7 +371,7 @@ void FApplication::cmd_options ()
                          + std::string(encoding.c_str()) );
       }
 
-      if ( std::strcmp(long_options[idx].name, "no-optimize-cursor")  == 0 )
+      if ( std::strcmp(long_options[idx].name, "no-optimized-cursor")  == 0 )
         setCursorOptimisation (false);
 
       if ( std::strcmp(long_options[idx].name, "vgafont")  == 0 )

src/fterm.cpp

@@ -35,6 +35,7 @@ bool     FTerm::gpm_mouse_enabled;
 bool     FTerm::color256;
 bool     FTerm::monochron;
 bool     FTerm::xterm_terminal;
+bool     FTerm::ansi_terminal;
 bool     FTerm::rxvt_terminal;
 bool     FTerm::urxvt_terminal;
 bool     FTerm::mlterm_terminal;
@@ -3055,6 +3056,7 @@ void FTerm::init()
   kterm_terminal          = \
   gnome_terminal          = \
   kde_konsole             = \
+  ansi_terminal           = \
   rxvt_terminal           = \
   urxvt_terminal          = \
   mlterm_terminal         = \
@@ -3110,6 +3112,12 @@ void FTerm::init()
   if ( std::strncmp(termtype, "rxvt-cygwin-native", 18) == 0 )
     rxvt_terminal = true;
 
+  if ( std::strncmp(termtype, "ansi", 4) == 0 )
+  {
+    terminal_detection = false;
+    ansi_terminal = true;
+  }
+
   // Test for Linux console
   if (  std::strncmp(termtype, const_cast<char*>("linux"), 5) == 0
      || std::strncmp(termtype, const_cast<char*>("con"), 3) == 0 )

src/fterm.h

@@ -127,6 +127,7 @@ class FTerm
    static bool          hasASCII();
    static bool          isMonochron();
    static bool          isXTerminal();
+   static bool          isAnsiTerminal();
    static bool          isRxvtTerminal();
    static bool          isUrxvtTerminal();
    static bool          isMltermTerminal();
@@ -339,6 +340,7 @@ class FTerm
    static bool    color256;
    static bool    monochron;
    static bool    xterm_terminal;
+   static bool    ansi_terminal;
    static bool    rxvt_terminal;
    static bool    urxvt_terminal;
    static bool    mlterm_terminal;
@@ -434,6 +436,10 @@ inline bool FTerm::isMonochron()
 inline bool FTerm::isXTerminal()
 { return xterm_terminal; }
 
+//----------------------------------------------------------------------
+inline bool FTerm::isAnsiTerminal()
+{ return ansi_terminal; }
+
 //----------------------------------------------------------------------
 inline bool FTerm::isRxvtTerminal()
 { return rxvt_terminal; }

src/fvterm.cpp

@@ -110,9 +110,9 @@ void FVTerm::setTermXY (register int x, register int y)
 }
 
 //----------------------------------------------------------------------
-void FVTerm::clearTerm()
+void FVTerm::clearTerm (int fillchar)
 {
-  // Clear the physical terminal and put cursor at home
+  // Clear the real terminal and put cursor at home
   char*& cl = tcap[fc::t_clear_screen].string;
   char*& cd = tcap[fc::t_clr_eos].string;
   char*& cb = tcap[fc::t_clr_eol].string;
@@ -121,15 +121,15 @@ void FVTerm::clearTerm()
   bool normal = isNormal(next);
   appendAttributes(next);
 
-  if ( (! cl && ! cd && ! cb)
-      || (normal && ! ut ) )
+  if ( ! ( (cl || cd || cb) && (normal || ut) )
+      || fillchar != ' ' )
   {
     int term_width = getColumnNumber();
 
     for (int i=0; i < getLineNumber(); i++)
     {
       setTermXY (0,i);
-      FString blank_line(term_width, ' ');
+      FString blank_line(term_width, wchar_t(fillchar));
       appendOutputBuffer (blank_line.c_str());
       term_pos->setPoint(term_width,i);
     }
@@ -1907,7 +1907,7 @@ void FVTerm::clearArea (term_area* area, int fillchar)
     if ( area == vdesktop )
     {
       std::fill_n (vterm->text, area_size, nc);
-      clearTerm();
+      clearTerm (fillchar);
       return;
     }
   }

src/fvterm.h

@@ -93,7 +93,7 @@ class FVTerm : public FObject, public FTerm
 
    // Mutators
    static void         setTermXY (register int, register int);
-   static void         clearTerm();
+   static void         clearTerm (int = ' ');
    static bool         hideCursor (bool);
    static bool         hideCursor();
    static bool         showCursor();

src/fwidget.cpp

@@ -1103,6 +1103,11 @@ void FWidget::show()
 
     // set xterm color settings to defaults
     setXTermDefaults();
+
+    // draw the vdesktop
+    FWidget* r = getRootWidget();
+    setColor(r->getForegroundColor(), r->getBackgroundColor());
+    clearArea (vdesktop);
   }
 
   if ( ! show_root_widget )
@@ -2158,8 +2163,6 @@ void FWidget::init()
 
   foreground_color = wc.term_fg;
   background_color = wc.term_bg;
-  setColor();
-  clearArea (vdesktop);
 
   accelerator_list = new Accelerators();
 }

test/keyboard.cpp

@@ -63,8 +63,6 @@ void keyboard::onAccel (FAccelEvent* ev)
 //----------------------------------------------------------------------
 void keyboard::draw()
 {
-  setNormal();
-  clearArea (vdesktop);
   setPrintPos (1,1);
   print ("---------------\n");
   print ("Press Q to quit\n");
@@ -78,6 +76,8 @@ void keyboard::draw()
 int main (int argc, char* argv[])
 {
   FApplication app(argc, argv);
+  app.setForegroundColor(fc::Default);
+  app.setBackgroundColor(fc::Default);
   keyboard key(&app);
   key.addAccelerator('q');
   app.setMainWidget(&key);

test/opti-move.cpp

@@ -149,7 +149,6 @@ int main (int argc, char* argv[])
   std::cout << "escape sequence          ";
   std::cout << "Length\r\n";
   std::cout << line;
-  std::cout << "\r\n";
 
   move (5, 12, 0, 0);
   move (5, ymax, 5, 0);

test/timer.cpp

@@ -40,8 +40,6 @@ timer::timer (FWidget* parent)
 //----------------------------------------------------------------------
 void timer::draw()
 {
-  setNormal();
-  clearArea (vdesktop);
   setPrintPos (1,1);
   print ("---------------\n");
   print ("Press Q to quit\n");
@@ -86,6 +84,8 @@ void timer::onAccel (FAccelEvent* ev)
 int main (int argc, char* argv[])
 {
   FApplication app(argc, argv);
+  app.setForegroundColor(fc::Default);
+  app.setBackgroundColor(fc::Default);
   timer t(&app);
   t.addAccelerator('q');
   app.setMainWidget(&t);