ElasticTabs.h

   1 #ifndef ElasticTabs_h
   2 #define ElasticTabs_h
   3
   4 #include <vector>
   5 #include <stdint.h>
   6
   7
   8 class ElasticTabs {
   9         public:
  10                 ElasticTabs(int num_right_columns_in) :
  11                         num_right_columns(num_right_columns_in),
  12                         reference_count(0), is_dirty(false), first_dirty_line(INT64_MAX)
  13                         {}
  14
  15                 std::vector<int>        column_widths;
  16                 int num_right_columns;
  17                 int     reference_count;
  18
  19                 int num_columns() { return column_widths.size(); }
  20
  21                 void acquire() { reference_count += 1; }
  22                 void release() {
  23                         if (--reference_count <= 0)
  24                                 delete this;
  25                         }
  26
  27                 // Dirtiness.
  28                 bool is_dirty;
  29                 int64_t first_dirty_line;
  30                 void undirtify() {
  31                         is_dirty = false;
  32                         first_dirty_line = INT64_MAX;
  33                         }
  34         };
  35
  36
  37 #endif  // ElasticTabs_h
  38
  39