src/apps/haikudepot/textview/TextSpan.h

   1 /*
   2  * Copyright 2013, Stephan Aßmus <superstippi@gmx.de>.
   3  * All rights reserved. Distributed under the terms of the MIT License.
   4  */
   5 #ifndef TEXT_SPAN_H
   6 #define TEXT_SPAN_H
   7
   8
   9 #include <String.h>
  10
  11 #include "CharacterStyle.h"
  12
  13
  14 class TextSpan {
  15 public:
  16                                                                 TextSpan();
  17                                                                 TextSpan(const BString& text,
  18                                                                         const CharacterStyle& style);
  19                                                                 TextSpan(const TextSpan& other);
  20
  21                         TextSpan&                       operator=(const TextSpan& other);
  22                         bool                            operator==(const TextSpan& other) const;
  23                         bool                            operator!=(const TextSpan& other) const;
  24
  25                         void                            SetText(const BString& text);
  26         inline  const BString&          Text() const
  27                                                                         { return fText; }
  28
  29                         void                            SetStyle(const CharacterStyle& style);
  30         inline  const CharacterStyle& Style() const
  31                                                                         { return fStyle; }
  32
  33         inline  int32                           CountChars() const
  34                                                                         { return fCharCount; }
  35
  36                         bool                            Append(const BString& text);
  37                         bool                            Insert(int32 offset, const BString& text);
  38                         bool                            Remove(int32 start, int32 count);
  39
  40                         TextSpan                        SubSpan(int32 start, int32 count) const;
  41
  42 private:
  43                         void                            _TruncateInsert(int32& start) const;
  44                         void                            _TruncateRemove(int32& start,
  45                                                                         int32& count) const;
  46
  47 private:
  48                         BString                         fText;
  49                         int32                           fCharCount;
  50                         CharacterStyle          fStyle;
  51 };
  52
  53
  54 #endif // TEXT_SPAN_H