scintilla/RunStyles.h

   1 /** @file RunStyles.h
   2  ** Data structure used to store sparse styles.
   3  **/
   4 // Copyright 1998-2007 by Neil Hodgson <neilh@scintilla.org>
   5 // The License.txt file describes the conditions under which this software may be distributed.
   6
   7 /// Styling buffer using one element for each run rather than using
   8 /// a filled buffer.
   9
  10 #ifndef RUNSTYLES_H
  11 #define RUNSTYLES_H
  12
  13 #ifdef SCI_NAMESPACE
  14 namespace Scintilla {
  15 #endif
  16
  17 class RunStyles {
  18 public:
  19         Partitioning *starts;
  20         SplitVector<int> *styles;
  21         int RunFromPosition(int position);
  22         int SplitRun(int position);
  23         void RemoveRun(int run);
  24         void RemoveRunIfEmpty(int run);
  25         void RemoveRunIfSameAsPrevious(int run);
  26 public:
  27         RunStyles();
  28         ~RunStyles();
  29         int Length() const;
  30         int ValueAt(int position) const;
  31         int FindNextChange(int position, int end);
  32         int StartRun(int position);
  33         int EndRun(int position);
  34         // Returns true if some values may have changed
  35         bool FillRange(int &position, int value, int &fillLength);
  36         void SetValueAt(int position, int value);
  37         void InsertSpace(int position, int insertLength);
  38         void DeleteAll();
  39         void DeleteRange(int position, int deleteLength);
  40 };
  41
  42 #ifdef SCI_NAMESPACE
  43 }
  44 #endif
  45
  46 #endif