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// Scintilla source code edit control
/** @file ContractionState.h
** Manages visibility of lines for folding and wrapping.
**/
// Copyright 1998-2007 by Neil Hodgson <neilh@scintilla.org>
// The License.txt file describes the conditions under which this software may be distributed.
#ifndef CONTRACTIONSTATE_H
#define CONTRACTIONSTATE_H
#ifdef SCI_NAMESPACE
namespace Scintilla {
#endif
template<class T>
class SparseVector;
/**
*/
class ContractionState {
// These contain 1 element for every document line.
std::unique_ptr<RunStyles> visible;
std::unique_ptr<RunStyles> expanded;
std::unique_ptr<RunStyles> heights;
std::unique_ptr<SparseVector<UniqueString>> foldDisplayTexts;
std::unique_ptr<Partitioning> displayLines;
Sci::Line linesInDocument;
void EnsureData();
bool OneToOne() const {
// True when each document line is exactly one display line so need for
// complex data structures.
return visible == nullptr;
}
public:
ContractionState();
// Deleted so ContractionState objects can not be copied.
ContractionState(const ContractionState &) = delete;
void operator=(const ContractionState &) = delete;
virtual ~ContractionState();
void Clear();
Sci::Line LinesInDoc() const;
Sci::Line LinesDisplayed() const;
Sci::Line DisplayFromDoc(Sci::Line lineDoc) const;
Sci::Line DisplayLastFromDoc(Sci::Line lineDoc) const;
Sci::Line DocFromDisplay(Sci::Line lineDisplay) const;
void InsertLine(Sci::Line lineDoc);
void InsertLines(Sci::Line lineDoc, Sci::Line lineCount);
void DeleteLine(Sci::Line lineDoc);
void DeleteLines(Sci::Line lineDoc, Sci::Line lineCount);
bool GetVisible(Sci::Line lineDoc) const;
bool SetVisible(Sci::Line lineDocStart, Sci::Line lineDocEnd, bool isVisible);
bool HiddenLines() const;
const char *GetFoldDisplayText(Sci::Line lineDoc) const;
bool SetFoldDisplayText(Sci::Line lineDoc, const char *text);
bool GetExpanded(Sci::Line lineDoc) const;
bool SetExpanded(Sci::Line lineDoc, bool isExpanded);
bool GetFoldDisplayTextShown(Sci::Line lineDoc) const;
Sci::Line ContractedNext(Sci::Line lineDocStart) const;
int GetHeight(Sci::Line lineDoc) const;
bool SetHeight(Sci::Line lineDoc, int height);
void ShowAll();
void Check() const;
};
#ifdef SCI_NAMESPACE
}
#endif
#endif
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