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74 lines
1.7 KiB
C++
74 lines
1.7 KiB
C++
// Scintilla source code edit control
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/** @file ContractionState.h
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** Manages visibility of lines for folding and wrapping.
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**/
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// Copyright 1998-2007 by Neil Hodgson <neilh@scintilla.org>
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// The License.txt file describes the conditions under which this software may be distributed.
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#ifndef CONTRACTIONSTATE_H
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#define CONTRACTIONSTATE_H
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#ifdef SCI_NAMESPACE
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namespace Scintilla {
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#endif
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/**
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*/
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class ContractionState {
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// These contain 1 element for every document line.
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RunStyles *visible;
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RunStyles *expanded;
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RunStyles *heights;
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Partitioning *displayLines;
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int linesInDocument;
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void EnsureData();
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bool OneToOne() const {
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// True when each document line is exactly one display line so need for
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// complex data structures.
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return visible == 0;
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}
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// no copy ctr or assignment op
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ContractionState(const ContractionState &);
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ContractionState &operator =(const ContractionState &);
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public:
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ContractionState();
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virtual ~ContractionState();
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void Clear();
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int LinesInDoc() const;
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int LinesDisplayed() const;
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int DisplayFromDoc(int lineDoc) const;
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int DisplayLastFromDoc(int lineDoc) const;
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int DocFromDisplay(int lineDisplay) const;
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void InsertLine(int lineDoc);
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void InsertLines(int lineDoc, int lineCount);
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void DeleteLine(int lineDoc);
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void DeleteLines(int lineDoc, int lineCount);
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bool GetVisible(int lineDoc) const;
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bool SetVisible(int lineDocStart, int lineDocEnd, bool visible);
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bool HiddenLines() const;
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bool GetExpanded(int lineDoc) const;
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bool SetExpanded(int lineDoc, bool expanded);
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int ContractedNext(int lineDocStart) const;
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int GetHeight(int lineDoc) const;
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bool SetHeight(int lineDoc, int height);
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void ShowAll();
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void Check() const;
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};
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#ifdef SCI_NAMESPACE
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}
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#endif
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#endif
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