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