src/apps/haikudepot/textview/Paragraph.h

   1 /*
   2  * Copyright 2013-2014, Stephan Aßmus <superstippi@gmx.de>.
   3  * All rights reserved. Distributed under the terms of the MIT License.
   4  */
   5 #ifndef PARAGRAPH_H
   6 #define PARAGRAPH_H
   7
   8 #include "List.h"
   9 #include "ParagraphStyle.h"
  10 #include "TextSpan.h"
  11
  12
  13 typedef List<TextSpan, false>   TextSpanList;
  14
  15
  16 class Paragraph {
  17 public:
  18                                                                 Paragraph();
  19                                                                 Paragraph(const ParagraphStyle& style);
  20                                                                 Paragraph(const Paragraph& other);
  21
  22                         Paragraph&                      operator=(const Paragraph& other);
  23                         bool                            operator==(const Paragraph& other) const;
  24                         bool                            operator!=(const Paragraph& other) const;
  25
  26                         void                            SetStyle(const ParagraphStyle& style);
  27         inline  const ParagraphStyle& Style() const
  28                                                                         { return fStyle; }
  29
  30         inline  const TextSpanList&     TextSpans() const
  31                                                                         { return fTextSpans; }
  32
  33                         bool                            Prepend(const TextSpan& span);
  34                         bool                            Append(const TextSpan& span);
  35                         bool                            Insert(int32 offset, const TextSpan& span);
  36                         bool                            Remove(int32 offset, int32 length);
  37                         void                            Clear();
  38
  39                         int32                           Length() const;
  40                         bool                            IsEmpty() const;
  41                         bool                            EndsWith(BString string) const;
  42
  43                         BString                         Text() const;
  44                         BString                         Text(int32 start, int32 length) const;
  45                         Paragraph                       SubParagraph(int32 start, int32 length) const;
  46
  47                         void                            PrintToStream() const;
  48
  49 private:
  50                         void                            _InvalidateCachedLength();
  51
  52 private:
  53                         ParagraphStyle          fStyle;
  54                         TextSpanList            fTextSpans;
  55         mutable int32                           fCachedLength;
  56 };
  57
  58
  59 #endif // PARAGRAPH_H