// DocumentAccessor.h - implementation of BufferAccess and StylingAccess on a Scintilla rapid easy access to contents of a Scintilla
// Copyright 1998-2000 by Neil Hodgson <neilh@scintilla.org>
// The License.txt file describes the conditions under which this software may be distributed.

class Document;

class DocumentAccessor : public Accessor {
protected:
	Document *pdoc;
	PropSet &props;
	int lenDoc;

	char styleBuf[bufferSize];
	int validLen;
	char chFlags;
	char chWhile;
	unsigned int startSeg;

	bool InternalIsLeadByte(char ch);
	void Fill(int position);
public:
	DocumentAccessor(Document *pdoc_, PropSet &props_) : 
		pdoc(pdoc_), props(props_), lenDoc(-1), validLen(0), chFlags(0) {
	}
	~DocumentAccessor();
	char StyleAt(int position);
	int GetLine(int position);
	int LineStart(int line);
	int LevelAt(int line);
	int Length();
	void Flush();
	int GetLineState(int line);
	int SetLineState(int line, int state);
	PropSet &GetPropSet() { return props; }

	void StartAt(unsigned int start, char chMask=31);
	void SetFlags(char chFlags_, char chWhile_) {chFlags = chFlags_; chWhile = chWhile_; };
	unsigned int GetStartSegment() { return startSeg; }
	void StartSegment(unsigned int pos);
	void ColourTo(unsigned int pos, int chAttr);
	void SetLevel(int line, int level);
	int IndentAmount(int line, int *flags, PFNIsCommentLeader pfnIsCommentLeader = 0);
};