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 #ifdef SCI_NAMESPACE
  10 namespace Scintilla {
  11 #endif
  12
  13 class Document;
  14
  15 /**
  16  */
  17 class DocumentAccessor : public Accessor {
  18         // Private so DocumentAccessor objects can not be copied
  19         DocumentAccessor(const DocumentAccessor &source) : Accessor(), props(source.props) {}
  20         DocumentAccessor &operator=(const DocumentAccessor &) { return *this; }
  21
  22 protected:
  23         Document *pdoc;
  24         PropSet &props;
  25         WindowID id;
  26         int lenDoc;
  27
  28         char styleBuf[bufferSize];
  29         int validLen;
  30         char chFlags;
  31         char chWhile;
  32         unsigned int startSeg;
  33         int startPosStyling;
  34         int mask;
  35
  36         bool InternalIsLeadByte(char ch);
  37         void Fill(int position);
  38
  39 public:
  40         DocumentAccessor(Document *pdoc_, PropSet &props_, WindowID id_=0) :
  41                 Accessor(), pdoc(pdoc_), props(props_), id(id_),
  42                 lenDoc(-1), validLen(0), chFlags(0), chWhile(0),
  43                 startSeg(0), startPosStyling(0),
  44                 mask(127) { // Initialize the mask to be big enough for any lexer.
  45         }
  46         ~DocumentAccessor();
  47         bool Match(int pos, const char *s);
  48         char StyleAt(int position);
  49         int GetLine(int position);
  50         int LineStart(int line);
  51         int LevelAt(int line);
  52         int Length();
  53         void Flush();
  54         int GetLineState(int line);
  55         int SetLineState(int line, int state);
  56         int GetPropertyInt(const char *key, int defaultValue=0) {
  57                 return props.GetInt(key, defaultValue);
  58         }
  59         char *GetProperties() {
  60                 return props.ToString();
  61         }
  62         WindowID GetWindow() { return id; }
  63
  64         void StartAt(unsigned int start, char chMask=31);
  65         void SetFlags(char chFlags_, char chWhile_) {chFlags = chFlags_; chWhile = chWhile_; };
  66         unsigned int GetStartSegment() { return startSeg; }
  67         void StartSegment(unsigned int pos);
  68         void ColourTo(unsigned int pos, int chAttr);
  69         void SetLevel(int line, int level);
  70         int IndentAmount(int line, int *flags, PFNIsCommentLeader pfnIsCommentLeader = 0);
  71         void IndicatorFill(int start, int end, int indicator, int value);
  72 };
  73
  74 #ifdef SCI_NAMESPACE
  75 }
  76 #endif