Implement tabs

2011-01-31 06:10:02 -05:00
parent e4dce8f6e2
commit 92d80accf9
5 changed files with 63 additions and 3 deletions
@@ -56,8 +56,8 @@ void Cell::reset( void )
 DrawState::DrawState( int s_width, int s_height )
  : width( s_width ), height( s_height ),
    cursor_col( 0 ), cursor_row( 0 ),
-    combining_char_col( 0 ), combining_char_row( 0 ),
-    next_print_will_wrap( false )
+    combining_char_col( 0 ), combining_char_row( 0 ), tabs( s_width ),
+    next_print_will_wrap( false ), auto_wrap_mode( true )
 {}

 Framebuffer::Framebuffer( int s_width, int s_height )
@@ -179,3 +179,23 @@ void Framebuffer::claim_overlap( int row, int col )
    }
  }
 }
+
+void DrawState::set_tab( void )
+{
+  tabs[ cursor_col ] = true;
+}
+
+void DrawState::clear_tab( int col )
+{
+  tabs[ col ] = false;
+}
+
+int DrawState::get_next_tab( void )
+{
+  for ( int i = cursor_col + 1; i < width; i++ ) {
+    if ( tabs[ i ] ) {
+      return i;
+    }
+  }
+  return -1;
+}