Bring some sanity to renditions (rationalize list on append)

templates.cpp

@@ -21,4 +21,5 @@ template class vector<wchar_t>;
 template class vector<int>;
 template class map<string, Function>;
 template class vector<bool>;
-
+template class list<int>;
+template void std::list<int, std::allocator<int> >::remove_if<bool (*)(int const&)>(bool (*)(int const&));

terminal.cpp

@@ -154,7 +154,7 @@ void Emulator::debug_printout( int fd )
       /* print renditions */
       screen.append( "\033[0" );
       char rendition[ 32 ];
-      for ( std::vector<int>::iterator i = cell->renditions.begin();
+      for ( std::list<int>::iterator i = cell->renditions.begin();
 	    i != cell->renditions.end();
 	    i++ ) {
 	snprintf( rendition, 32, ";%d", *i );

terminal.hpp

@@ -16,7 +16,7 @@ namespace Terminal {
   private:
     bool initialized;
     Framebuffer last_frame;
-    std::vector<int> current_renditions;
+    std::list<int> current_renditions;
 
   public:
     Display( int width, int height )

terminaldisplay.cpp

@@ -66,7 +66,7 @@ std::string Display::new_frame( Framebuffer &f )
 	cursor_was_moved = true;
       }
 
-      std::vector<int> cell_print_renditions;
+      std::list<int> cell_print_renditions;
       cell_print_renditions = cell->renditions;
       cell_print_renditions.insert( cell_print_renditions.begin(), 0 );
 
@@ -74,7 +74,7 @@ std::string Display::new_frame( Framebuffer &f )
 	/* print renditions */
 	screen.append( "\033[0" );
 	char rendition[ 32 ];
-	for ( std::vector<int>::iterator i = cell->renditions.begin();
+	for ( std::list<int>::iterator i = cell->renditions.begin();
 	      i != cell->renditions.end();
 	      i++ ) {
 	  snprintf( rendition, 32, ";%d", *i );

terminalframebuffer.cpp

@@ -407,11 +407,11 @@ void DrawState::resize( int s_width, int s_height )
 int DrawState::get_background_rendition( void )
 {
   int color = -1;
-  for ( std::vector<int>::iterator i = renditions.begin();
+  for ( std::list<int>::iterator i = renditions.begin();
 	i != renditions.end();
 	i++ ) {
     int r = *i;
-    if ( (40 <= r) && (r <= 47) ) {
+    if ( (40 <= r) && (r <= 49) ) {
       color = r;
     }
   }
@@ -436,3 +436,30 @@ void Framebuffer::back_color_erase( void )
     }
   }
 }
+
+static bool fg_colorval( const int &x ) { return (30 <= x) && (x <= 39); }
+static bool bg_colorval( const int &x ) { return (40 <= x) && (x <= 49); }
+
+void DrawState::add_rendition( int x )
+{
+  /* Filter out older renditions that we know
+     will now be reset */
+
+  renditions.remove( x );
+
+  switch ( x ) {
+  case 1: case 22: renditions.remove( 1 ); renditions.remove( 22 ); break; /* bold */
+  case 4: case 24: renditions.remove( 4 ); renditions.remove( 24 ); break; /* underlined */
+  case 5: case 25: renditions.remove( 5 ); renditions.remove( 25 ); break; /* blink */
+  case 7: case 27: renditions.remove( 7 ); renditions.remove( 27 ); break; /* inverse */
+  case 8: case 28: renditions.remove( 8 ); renditions.remove( 28 ); break; /* invisible */
+  }
+
+  if ( (30 <= x) && (x <= 39) ) { /* foreground color */
+    renditions.remove_if( fg_colorval );
+  } else if ( (40 <= x) && (x <= 49) ) { /* background color */
+    renditions.remove_if( bg_colorval );
+  }
+
+  renditions.push_back( x );
+}

terminalframebuffer.hpp

@@ -4,6 +4,7 @@
 #include <vector>
 #include <deque>
 #include <string>
+#include <list>
 
 /* Terminal framebuffer */
 
@@ -13,7 +14,7 @@ namespace Terminal {
     std::vector<wchar_t> contents;
     char fallback; /* first character is combining character */
     int width;
-    std::vector<int> renditions; /* e.g., bold, blinking, etc. */
+    std::list<int> renditions; /* e.g., bold, blinking, etc. */
     bool need_back_color_erase;
 
     Cell();
@@ -36,7 +37,7 @@ namespace Terminal {
   class SavedCursor {
   public:
     int cursor_col, cursor_row;
-    std::vector<int> renditions;
+    std::list<int> renditions;
     /* character set shift state */
     bool auto_wrap_mode;
     bool origin_mode;
@@ -59,7 +60,7 @@ namespace Terminal {
 
     int scrolling_region_top_row, scrolling_region_bottom_row;
 
-    std::vector<int> renditions;
+    std::list<int> renditions;
 
     SavedCursor save;
 
@@ -100,8 +101,8 @@ namespace Terminal {
     int limit_bottom( void );
 
     void clear_renditions( void ) { renditions.clear(); }
-    void add_rendition( int x ) { renditions.push_back( x ); }
-    const std::vector<int> get_renditions( void ) { return renditions; }
+    void add_rendition( int x );
+    const std::list<int> get_renditions( void ) { return renditions; }
     int get_background_rendition( void );
 
     void save_cursor( void );