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/** @file RunStyles.h
** Data structure used to store sparse styles.
**/
// Copyright 1998-2007 by Neil Hodgson <neilh@scintilla.org>
// The License.txt file describes the conditions under which this software may be distributed.
/// Styling buffer using one element for each run rather than using
/// a filled buffer.
#ifndef RUNSTYLES_H
#define RUNSTYLES_H
namespace Scintilla {
template <typename DISTANCE, typename STYLE>
class RunStyles {
private:
std::unique_ptr<Partitioning<DISTANCE>> starts;
std::unique_ptr<SplitVector<STYLE>> styles;
DISTANCE RunFromPosition(DISTANCE position) const;
DISTANCE SplitRun(DISTANCE position);
void RemoveRun(DISTANCE run);
void RemoveRunIfEmpty(DISTANCE run);
void RemoveRunIfSameAsPrevious(DISTANCE run);
public:
RunStyles();
// Deleted so RunStyles objects can not be copied.
RunStyles(const RunStyles &) = delete;
void operator=(const RunStyles &) = delete;
~RunStyles();
DISTANCE Length() const;
STYLE ValueAt(DISTANCE position) const;
DISTANCE FindNextChange(DISTANCE position, DISTANCE end) const;
DISTANCE StartRun(DISTANCE position) const;
DISTANCE EndRun(DISTANCE position) const;
// Returns true if some values may have changed
bool FillRange(DISTANCE &position, STYLE value, DISTANCE &fillLength);
void SetValueAt(DISTANCE position, STYLE value);
void InsertSpace(DISTANCE position, DISTANCE insertLength);
void DeleteAll();
void DeleteRange(DISTANCE position, DISTANCE deleteLength);
DISTANCE Runs() const;
bool AllSame() const;
bool AllSameAs(STYLE value) const;
DISTANCE Find(STYLE value, DISTANCE start) const;
void Check() const;
};
}
#endif
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