contrib/src/stc/scintilla/src/DocumentAccessor.h

   1 // Scintilla source code edit control
   2 /** @file DocumentAccessor.h
   3  ** Implementation of BufferAccess and StylingAccess on a Scintilla
   4  ** rapid easy access to contents of a Scintilla.
   5  **/
   6 // Copyright 1998-2001 by Neil Hodgson <neilh@scintilla.org>
   7 // The License.txt file describes the conditions under which this software may be distributed.
   8
   9 class Document;
  10
  11 /**
  12  */
  13 class DocumentAccessor : public Accessor {
  14         // Private so DocumentAccessor objects can not be copied
  15         DocumentAccessor(const DocumentAccessor &source) : Accessor(), props(source.props) {}
  16         DocumentAccessor &operator=(const DocumentAccessor &) { return *this; }
  17
  18 protected:
  19         Document *pdoc;
  20         PropSet &props;
  21         WindowID id;
  22         int lenDoc;
  23
  24         char styleBuf[bufferSize];
  25         int validLen;
  26         char chFlags;
  27         char chWhile;
  28         unsigned int startSeg;
  29         int startPosStyling;
  30         int mask;
  31
  32         bool InternalIsLeadByte(char ch);
  33         void Fill(int position);
  34
  35 public:
  36         DocumentAccessor(Document *pdoc_, PropSet &props_, WindowID id_=0) :
  37                 Accessor(), pdoc(pdoc_), props(props_), id(id_),
  38                 lenDoc(-1), validLen(0), chFlags(0), chWhile(0),
  39                 startSeg(0), startPosStyling(0),
  40                 mask(127) { // Initialize the mask to be big enough for any lexer.
  41         }
  42         ~DocumentAccessor();
  43         bool Match(int pos, const char *s);
  44         char StyleAt(int position);
  45         int GetLine(int position);
  46         int LineStart(int line);
  47         int LevelAt(int line);
  48         int Length();
  49         void Flush();
  50         int GetLineState(int line);
  51         int SetLineState(int line, int state);
  52         int GetPropertyInt(const char *key, int defaultValue=0) {
  53                 return props.GetInt(key, defaultValue);
  54         }
  55         char *GetProperties() {
  56                 return props.ToString();
  57         }
  58         WindowID GetWindow() { return id; }
  59
  60         void StartAt(unsigned int start, char chMask=31);
  61         void SetFlags(char chFlags_, char chWhile_) {chFlags = chFlags_; chWhile = chWhile_; };
  62         unsigned int GetStartSegment() { return startSeg; }
  63         void StartSegment(unsigned int pos);
  64         void ColourTo(unsigned int pos, int chAttr);
  65         void SetLevel(int line, int level);
  66         int IndentAmount(int line, int *flags, PFNIsCommentLeader pfnIsCommentLeader = 0);
  67 };