Addition of PositionCache module which adds cacing of string

to position information and segments long pieces of text so they
can be handled more efficiently.

1 files changed, 1 insertions, 86 deletions

diff --git a/src/Editor.h b/src/Editor.h
index a31777611..213b0e361 100644
--- a/src/Editor.h
+++ b/src/Editor.h
@@ -46,92 +46,6 @@ public:
 };
 
 /**
- */
-class LineLayout {
-private:
-	friend class LineLayoutCache;
-	int *lineStarts;
-	int lenLineStarts;
-	/// Drawing is only performed for @a maxLineLength characters on each line.
-	int lineNumber;
-	bool inCache;
-public:
-	enum { wrapWidthInfinite = 0x7ffffff };
-	int maxLineLength;
-	int numCharsInLine;
-	enum validLevel { llInvalid, llCheckTextAndStyle, llPositions, llLines } validity;
-	int xHighlightGuide;
-	bool highlightColumn;
-	int selStart;
-	int selEnd;
-	bool containsCaret;
-	int edgeColumn;
-	char *chars;
-	unsigned char *styles;
-	int styleBitsSet;
-	char *indicators;
-	int *positions;
-	char bracePreviousStyles[2];
-
-	// Hotspot support
-	int hsStart;
-	int hsEnd;
-
-	// Wrapped line support
-	int widthLine;
-	int lines;
-
-	LineLayout(int maxLineLength_);
-	virtual ~LineLayout();
-	void Resize(int maxLineLength_);
-	void Free();
-	void Invalidate(validLevel validity_);
-	int LineStart(int line) {
-		if (line <= 0) {
-			return 0;
-		} else if ((line >= lines) || !lineStarts) {
-			return numCharsInLine;
-		} else {
-			return lineStarts[line];
-		}
-	}
-	void SetLineStart(int line, int start);
-	void SetBracesHighlight(Range rangeLine, Position braces[],
-		char bracesMatchStyle, int xHighlight);
-	void RestoreBracesHighlight(Range rangeLine, Position braces[]);
-};
-
-/**
- */
-class LineLayoutCache {
-	int level;
-	int length;
-	int size;
-	LineLayout **cache;
-	bool allInvalidated;
-	int styleClock;
-	int useCount;
-	void Allocate(int length_);
-	void AllocateForLevel(int linesOnScreen, int linesInDoc);
-public:
-	LineLayoutCache();
-	virtual ~LineLayoutCache();
-	void Deallocate();
-	enum {
-		llcNone=SC_CACHE_NONE,
-		llcCaret=SC_CACHE_CARET,
-		llcPage=SC_CACHE_PAGE,
-		llcDocument=SC_CACHE_DOCUMENT
-	};
-	void Invalidate(LineLayout::validLevel validity_);
-	void SetLevel(int level_);
-	int GetLevel() { return level; }
-	LineLayout *Retrieve(int lineNumber, int lineCaret, int maxChars, int styleClock_,
-		int linesOnScreen, int linesInDoc);
-	void Dispose(LineLayout *ll);
-};
-
-/**
  * Hold a piece of text selected for copying or dragging.
  * The text is expected to hold a terminating '\0' and this is counted in len.
  */
@@ -233,6 +147,7 @@ protected:	// ScintillaBase subclass needs access to much of Editor
 	Surface *pixmapIndentGuideHighlight;
 
 	LineLayoutCache llc;
+	PositionCache posCache;
 
 	KeyMap kmap;