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Kate

katesmartmanager.h

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00001 /* This file is part of the KDE libraries
00002    Copyright (C) 2005 Hamish Rodda <rodda@kde.org>
00003 
00004    This library is free software; you can redistribute it and/or
00005    modify it under the terms of the GNU Library General Public
00006    License version 2 as published by the Free Software Foundation.
00007 
00008    This library is distributed in the hope that it will be useful,
00009    but WITHOUT ANY WARRANTY; without even the implied warranty of
00010    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00011    Library General Public License for more details.
00012 
00013    You should have received a copy of the GNU Library General Public License
00014    along with this library; see the file COPYING.LIB.  If not, write to
00015    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00016    Boston, MA 02110-1301, USA.
00017 */
00018 
00019 #ifndef KATESMARTMANAGER_H
00020 #define KATESMARTMANAGER_H
00021 
00022 #include <QtCore/QObject>
00023 #include <QtCore/QSet>
00024 #include <QtCore/QLinkedList>
00025 #include <QtCore/QThreadStorage>
00026 
00027 #include <ktexteditor/smartrange.h>
00028 
00029 class KateEditInfo;
00030 class KateDocument;
00031 class KateSmartCursor;
00032 class KateSmartRange;
00033 class KateSmartGroup;
00034 
00041 class KateSmartManager : public QObject
00042 {
00043   Q_OBJECT
00044 
00045   public:
00046     explicit KateSmartManager(KateDocument* parent);
00047     virtual ~KateSmartManager();
00048 
00049     KateDocument* doc() const;
00050 
00062     inline bool isClearing() const { return m_clearing; }
00063     void clear(bool includingInternal);
00064 
00065     int currentRevision() const;
00066     void releaseRevision(int revision) const;
00067     void useRevision(int revision = -1);
00068     KTextEditor::Cursor translateFromRevision(const KTextEditor::Cursor& cursor, KTextEditor::SmartCursor::InsertBehavior insertBehavior = KTextEditor::SmartCursor::StayOnInsert) const;
00069     KTextEditor::Range translateFromRevision(const KTextEditor::Range& range, KTextEditor::SmartRange::InsertBehaviors insertBehavior = KTextEditor::SmartRange::ExpandLeft | KTextEditor::SmartRange::ExpandRight) const;
00070 
00071     KateSmartCursor* newSmartCursor(const KTextEditor::Cursor& position = KTextEditor::Cursor(), KTextEditor::SmartCursor::InsertBehavior insertBehavior = KTextEditor::SmartCursor::MoveOnInsert, bool internal = true);
00072     void deleteCursors(bool includingInternal);
00073 
00074     KateSmartRange* newSmartRange(const KTextEditor::Range& range = KTextEditor::Range(), KTextEditor::SmartRange* parent = 0L, KTextEditor::SmartRange::InsertBehaviors insertBehavior = KTextEditor::SmartRange::DoNotExpand, bool internal = true);
00075     KateSmartRange* newSmartRange(KateSmartCursor* start, KateSmartCursor* end, KTextEditor::SmartRange* parent = 0L, KTextEditor::SmartRange::InsertBehaviors insertBehavior = KTextEditor::SmartRange::DoNotExpand, bool internal = true);
00076     void unbindSmartRange(KTextEditor::SmartRange* range);
00077     void deleteRanges(bool includingInternal);
00078 
00079     void rangeGotParent(KateSmartRange* range);
00080     void rangeLostParent(KateSmartRange* range);
00082     void rangeDeleted(KateSmartRange* range);
00083 
00084     KateSmartGroup* groupForLine(int line) const;
00085 
00086   Q_SIGNALS:
00087     void signalRangeDeleted(KateSmartRange* range);
00088 
00089   private Q_SLOTS:
00090     void slotTextChanged(KateEditInfo* edit);
00091     void verifyCorrect() const;
00092 
00093   private:
00094     KateSmartRange* feedbackRange(const KateEditInfo& edit, KateSmartRange* range);
00095     int usingRevision() const;
00096 
00097     void debugOutput() const;
00098 
00099     KateSmartGroup* m_firstGroup;
00100     QSet<KateSmartRange*> m_topRanges;
00101     KateSmartGroup* m_invalidGroup;
00102     bool m_clearing;
00103     QThreadStorage<int*> m_usingRevision;
00104     struct KateTranslationDebugger;
00105     KateTranslationDebugger* m_currentKateTranslationDebugger;
00106 };
00107 
00116 class KateSmartGroup
00117 {
00118   public:
00119     KateSmartGroup(int startLine, int endLine, KateSmartGroup* previous, KateSmartGroup* next);
00120 
00121     inline int startLine() const { return m_startLine; }
00122     inline int newStartLine() const { return m_newStartLine; }
00123     inline int endLine() const { return m_endLine; }
00124     inline int newEndLine() const { return m_newEndLine; }
00125     inline void setEndLine(int endLine) { m_newEndLine = m_endLine = endLine; }
00126     inline void setNewEndLine(int endLine) { m_newEndLine = endLine; }
00127     inline int length() const { return m_endLine - m_startLine + 1; }
00128     inline bool containsLine(int line) const { return line >= m_newStartLine && line <= m_newEndLine; }
00129 
00130     inline KateSmartGroup* previous() const { return m_previous; }
00131     inline void setPrevious(KateSmartGroup* previous) { m_previous = previous; }
00132 
00133     inline KateSmartGroup* next() const { return m_next; }
00134     inline void setNext(KateSmartGroup* next) { m_next = next; }
00135 
00136     void addCursor(KateSmartCursor* cursor);
00137     void changeCursorFeedback(KateSmartCursor* cursor);
00138     void removeCursor(KateSmartCursor* cursor);
00139     // Cursors requiring position change feedback
00140     const QSet<KateSmartCursor*>& feedbackCursors() const;
00141     // Cursors not requiring feedback
00142     const QSet<KateSmartCursor*>& normalCursors() const;
00143 
00144     // Cursor movement!
00150     void joined(KateSmartCursor* cursor);
00151 
00157     void leaving(KateSmartCursor* cursor);
00158 
00159     // Merge with the next Smart Group, because this group became too small.
00160     void merge();
00161 
00162     // First pass for translation
00163     void translateChanged(const KateEditInfo& edit);
00164     void translateShifted(const KateEditInfo& edit);
00165 
00166     // Second pass for finalizing the translation
00167     void translatedChanged(const KateEditInfo& edit);
00168     void translatedShifted(const KateEditInfo& edit);
00169 
00170     // Third pass, when all translations are complete
00171     void translatedChanged2(const KateEditInfo& edit);
00172     
00173     void deleteCursors(bool includingInternal);
00174     void deleteCursorsInternal(QSet<KateSmartCursor*>& set);
00175 
00176     void debugOutput() const;
00177 
00178   private:
00179     int m_startLine, m_newStartLine, m_endLine, m_newEndLine;
00180     KateSmartGroup* m_next;
00181     KateSmartGroup* m_previous;
00182 
00183     QSet<KateSmartCursor*> m_feedbackCursors;
00184     QSet<KateSmartCursor*> m_normalCursors;
00185 };
00186 
00187 #endif

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