Moved TextEditDocumentLayout and related classes to their own file

The Parentheses, TextBlockUserData and TextEditDocumentLayout classes
and their member function implementations were spread around the
BaseTextEditor class. Moving them to their own file to make the code a
bit better organized.

Reviewed-by: mae

src/plugins/cppeditor/cpphighlighter.cpp

@@ -32,7 +32,7 @@
 
 #include <Token.h>
 #include <cplusplus/SimpleLexer.h>
-#include <texteditor/basetexteditor.h>
+#include <texteditor/basetextdocumentlayout.h>
 
 #include <QtGui/QTextDocument>
 #include <QtCore/QDebug>

src/plugins/cppeditor/cppquickfix.cpp

@@ -48,7 +48,8 @@
 
 #include <cpptools/cpptoolsconstants.h>
 #include <cpptools/cppmodelmanagerinterface.h>
-#include <QtDebug>
+
+#include <QtGui/QTextBlock>
 
 using namespace CppEditor::Internal;
 using namespace CPlusPlus;

src/plugins/cpptools/cppmodelmanager.cpp

@@ -85,6 +85,9 @@
 #include <QtCore/QTime>
 #include <QtCore/QTimer>
 #include <QtConcurrentMap>
+
+#include <QtGui/QTextBlock>
+
 #include <iostream>
 #include <sstream>
 

src/plugins/fakevim/fakevimplugin.cpp

@@ -50,10 +50,10 @@
 #include <projectexplorer/projectexplorerconstants.h>
 #include <projectexplorer/session.h>
 
+#include <texteditor/basetextdocumentlayout.h>
 #include <texteditor/basetexteditor.h>
 #include <texteditor/basetextmark.h>
 #include <texteditor/completionsupport.h>
-#include <texteditor/itexteditor.h>
 #include <texteditor/texteditorconstants.h>
 #include <texteditor/tabsettings.h>
 #include <texteditor/texteditorsettings.h>

src/plugins/genericprojectmanager/genericprojectfileseditor.h

@@ -35,6 +35,10 @@
 
 #include <coreplugin/editormanager/ieditorfactory.h>
 
+namespace TextEditor {
+class TextEditorActionHandler;
+}
+
 namespace GenericProjectManager {
 namespace Internal {
 

src/plugins/qmljseditor/qmljscodecompletion.cpp

@@ -51,20 +51,19 @@
 #include <QtCore/QXmlStreamReader>
 #include <QtCore/QDebug>
 
-#include <QtGui/QPainter>
+#include <QtGui/QApplication>
+#include <QtGui/QDesktopWidget>
+#include <QtGui/QHBoxLayout>
 #include <QtGui/QLabel>
+#include <QtGui/QPainter>
 #include <QtGui/QStyle>
+#include <QtGui/QTextBlock>
 #include <QtGui/QToolButton>
-#include <QtGui/QHBoxLayout>
-#include <QtGui/QApplication>
-#include <QtGui/QDesktopWidget>
 
 using namespace QmlJSEditor;
 using namespace QmlJSEditor::Internal;
 using namespace QmlJS;
 
-// #define QML_WITH_SNIPPETS
-
 namespace {
 
 // Temporary workaround until we have proper icons for QML completion items

src/plugins/qmljseditor/qmljshighlighter.h

@@ -38,7 +38,7 @@
 #include <QtCore/QSet>
 #include <QtGui/QSyntaxHighlighter>
 
-#include <texteditor/basetexteditor.h>
+#include <texteditor/basetextdocumentlayout.h>
 
 namespace QmlJSEditor {
 

src/plugins/qt4projectmanager/profileeditor.h

@@ -35,6 +35,7 @@
 
 namespace TextEditor {
 class FontSettings;
+class TextEditorActionHandler;
 }
 
 namespace Qt4ProjectManager {

src/plugins/texteditor/basefilefind.cpp

@@ -43,11 +43,12 @@
 #include <QtCore/QDebug>
 #include <QtCore/QDirIterator>
 #include <QtCore/QSettings>
-#include <QtGui/QLabel>
-#include <QtGui/QComboBox>
+#include <QtGui/QFileDialog>
 #include <QtGui/QCheckBox>
+#include <QtGui/QComboBox>
+#include <QtGui/QLabel>
 #include <QtGui/QPushButton>
-#include <QtGui/QFileDialog>
+#include <QtGui/QTextBlock>
 
 using namespace Utils;
 using namespace Find;

src/plugins/texteditor/basetextdocument.cpp

@@ -28,6 +28,8 @@
 **************************************************************************/
 
 #include "basetextdocument.h"
+
+#include "basetextdocumentlayout.h"
 #include "basetexteditor.h"
 #include "storagesettings.h"
 
@@ -52,6 +54,75 @@ DocumentMarker::DocumentMarker(QTextDocument *doc)
 {
 }
 
+bool DocumentMarker::addMark(TextEditor::ITextMark *mark, int line)
+{
+    QTC_ASSERT(line >= 1, return false);
+    int blockNumber = line - 1;
+    TextEditDocumentLayout *documentLayout = qobject_cast<TextEditDocumentLayout*>(document->documentLayout());
+    QTC_ASSERT(documentLayout, return false);
+    QTextBlock block = document->findBlockByNumber(blockNumber);
+
+    if (block.isValid()) {
+        TextBlockUserData *userData = TextEditDocumentLayout::userData(block);
+        userData->addMark(mark);
+        mark->updateLineNumber(blockNumber + 1);
+        mark->updateBlock(block);
+        documentLayout->hasMarks = true;
+        documentLayout->requestUpdate();
+        return true;
+    }
+    return false;
+}
+
+TextEditor::TextMarks DocumentMarker::marksAt(int line) const
+{
+    QTC_ASSERT(line >= 1, return TextMarks());
+    int blockNumber = line - 1;
+    QTextBlock block = document->findBlockByNumber(blockNumber);
+
+    if (block.isValid()) {
+        if (TextBlockUserData *userData = TextEditDocumentLayout::testUserData(block))
+            return userData->marks();
+    }
+    return TextMarks();
+}
+
+void DocumentMarker::removeMark(TextEditor::ITextMark *mark)
+{
+    bool needUpdate = false;
+    QTextBlock block = document->begin();
+    while (block.isValid()) {
+        if (TextBlockUserData *data = static_cast<TextBlockUserData *>(block.userData())) {
+            needUpdate |= data->removeMark(mark);
+        }
+        block = block.next();
+    }
+    if (needUpdate)
+        updateMark(0);
+}
+
+bool DocumentMarker::hasMark(TextEditor::ITextMark *mark) const
+{
+    QTextBlock block = document->begin();
+    while (block.isValid()) {
+        if (TextBlockUserData *data = static_cast<TextBlockUserData *>(block.userData())) {
+            if (data->hasMark(mark))
+                return true;
+        }
+        block = block.next();
+    }
+    return false;
+}
+
+void DocumentMarker::updateMark(ITextMark *mark)
+{
+    Q_UNUSED(mark)
+    TextEditDocumentLayout *documentLayout = qobject_cast<TextEditDocumentLayout*>(document->documentLayout());
+    QTC_ASSERT(documentLayout, return);
+    documentLayout->requestUpdate();
+}
+
+
 BaseTextDocument::BaseTextDocument()
   : m_document(new QTextDocument(this)),
     m_highlighter(0)

src/plugins/texteditor/basetextdocumentlayout.h

+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** Commercial Usage
+**
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+**
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://qt.nokia.com/contact.
+**
+**************************************************************************/
+
+#ifndef BASETEXTDOCUMENTLAYOUT_H
+#define BASETEXTDOCUMENTLAYOUT_H
+
+#include "texteditor_global.h"
+
+#include "itexteditor.h"
+
+#include <QtGui/QTextBlockUserData>
+#include <QtGui/QPlainTextDocumentLayout>
+
+namespace TextEditor {
+
+struct Parenthesis;
+typedef QVector<Parenthesis> Parentheses;
+
+struct TEXTEDITOR_EXPORT Parenthesis
+{
+    enum Type { Opened, Closed };
+
+    inline Parenthesis() : type(Opened), pos(-1) {}
+    inline Parenthesis(Type t, QChar c, int position)
+        : type(t), chr(c), pos(position) {}
+    Type type;
+    QChar chr;
+    int pos;
+    static int collapseAtPos(const Parentheses &parentheses, QChar *character = 0);
+    static int closeCollapseAtPos(const Parentheses &parentheses);
+    static bool hasClosingCollapse(const Parentheses &parentheses);
+};
+
+
+class TEXTEDITOR_EXPORT TextBlockUserData : public QTextBlockUserData
+{
+public:
+
+    enum CollapseMode { NoCollapse , CollapseThis, CollapseAfter };
+    enum ClosingCollapseMode { NoClosingCollapse, ClosingCollapse, ClosingCollapseAtEnd };
+
+    inline TextBlockUserData()
+        : m_collapseIncludesClosure(false),
+          m_collapseMode(NoCollapse),
+          m_closingCollapseMode(NoClosingCollapse),
+          m_collapsed(false),
+          m_ifdefedOut(false) {}
+    ~TextBlockUserData();
+
+    inline TextMarks marks() const { return m_marks; }
+    inline void addMark(ITextMark *mark) { m_marks += mark; }
+    inline bool removeMark(ITextMark *mark) { return m_marks.removeAll(mark); }
+    inline bool hasMark(ITextMark *mark) const { return m_marks.contains(mark); }
+    inline void clearMarks() { m_marks.clear(); }
+    inline void documentClosing() { Q_FOREACH(ITextMark *tm, m_marks) { tm->documentClosing(); } m_marks.clear();}
+
+    inline CollapseMode collapseMode() const { return (CollapseMode)m_collapseMode; }
+    inline void setCollapseMode(CollapseMode c) { m_collapseMode = c; }
+
+    inline void setClosingCollapseMode(ClosingCollapseMode c) { m_closingCollapseMode = c; }
+    inline ClosingCollapseMode closingCollapseMode() const { return (ClosingCollapseMode) m_closingCollapseMode; }
+
+    inline bool hasClosingCollapse() const { return closingCollapseMode() != NoClosingCollapse; }
+    inline bool hasClosingCollapseAtEnd() const { return closingCollapseMode() == ClosingCollapseAtEnd; }
+    inline bool hasClosingCollapseInside() const { return closingCollapseMode() == ClosingCollapse; }
+
+    inline void setCollapsed(bool b) { m_collapsed = b; }
+    inline bool collapsed() const { return m_collapsed; }
+
+    inline void setCollapseIncludesClosure(bool b) { m_collapseIncludesClosure = b; }
+    inline bool collapseIncludesClosure() const { return m_collapseIncludesClosure; }
+
+    inline void setParentheses(const Parentheses &parentheses) { m_parentheses = parentheses; }
+    inline void clearParentheses() { m_parentheses.clear(); }
+    inline const Parentheses &parentheses() const { return m_parentheses; }
+    inline bool hasParentheses() const { return !m_parentheses.isEmpty(); }
+    int braceDepthDelta() const;
+
+    inline bool setIfdefedOut() { bool result = m_ifdefedOut; m_ifdefedOut = true; return !result; }
+    inline bool clearIfdefedOut() { bool result = m_ifdefedOut; m_ifdefedOut = false; return result;}
+    inline bool ifdefedOut() const { return m_ifdefedOut; }
+
+    inline static TextBlockUserData *canCollapse(const QTextBlock &block) {
+        TextBlockUserData *data = static_cast<TextBlockUserData*>(block.userData());
+        if (!data || data->collapseMode() != CollapseAfter) {
+            data = static_cast<TextBlockUserData*>(block.next().userData());
+            if (!data || data->collapseMode() != TextBlockUserData::CollapseThis)
+                data = 0;
+        }
+        if (data && data->m_ifdefedOut)
+            data = 0;
+        return data;
+    }
+
+    inline static bool hasCollapseAfter(const QTextBlock & block)
+    {
+        if (!block.isValid()) {
+            return false;
+        } else if (block.next().isValid()) {
+            TextBlockUserData *data = static_cast<TextBlockUserData*>(block.next().userData());
+            if (data && data->collapseMode() == TextBlockUserData::CollapseThis &&  !data->m_ifdefedOut)
+                return true;
+        }
+        return false;
+    }
+
+    inline static bool hasClosingCollapse(const QTextBlock &block) {
+        TextBlockUserData *data = static_cast<TextBlockUserData*>(block.userData());
+        return (data && data->hasClosingCollapse());
+    }
+
+    inline static bool hasClosingCollapseAtEnd(const QTextBlock &block) {
+        TextBlockUserData *data = static_cast<TextBlockUserData*>(block.userData());
+        return (data && data->hasClosingCollapseAtEnd());
+    }
+
+    inline static bool hasClosingCollapseInside(const QTextBlock &block) {
+        TextBlockUserData *data = static_cast<TextBlockUserData*>(block.userData());
+        return (data && data->hasClosingCollapseInside());
+    }
+
+    static QTextBlock testCollapse(const QTextBlock& block);
+    static void doCollapse(const QTextBlock& block, bool visible);
+
+    int collapseAtPos(QChar *character = 0) const;
+
+    enum MatchType { NoMatch, Match, Mismatch  };
+    static MatchType checkOpenParenthesis(QTextCursor *cursor, QChar c);
+    static MatchType checkClosedParenthesis(QTextCursor *cursor, QChar c);
+    static MatchType matchCursorBackward(QTextCursor *cursor);
+    static MatchType matchCursorForward(QTextCursor *cursor);
+    static bool findPreviousOpenParenthesis(QTextCursor *cursor, bool select = false);
+    static bool findNextClosingParenthesis(QTextCursor *cursor, bool select = false);
+
+    static bool findPreviousBlockOpenParenthesis(QTextCursor *cursor, bool checkStartPosition = false);
+    static bool findNextBlockClosingParenthesis(QTextCursor *cursor);
+
+
+private:
+    TextMarks m_marks;
+    uint m_collapseIncludesClosure : 1;
+    uint m_collapseMode : 4;
+    uint m_closingCollapseMode : 4;
+    uint m_collapsed : 1;
+    uint m_ifdefedOut : 1;
+    Parentheses m_parentheses;
+};
+
+
+class TEXTEDITOR_EXPORT TextEditDocumentLayout : public QPlainTextDocumentLayout
+{
+    Q_OBJECT
+
+public:
+    TextEditDocumentLayout(QTextDocument *doc);
+    ~TextEditDocumentLayout();
+
+    static void setParentheses(const QTextBlock &block, const Parentheses &parentheses);
+    static void clearParentheses(const QTextBlock &block) { setParentheses(block, Parentheses());}
+    static Parentheses parentheses(const QTextBlock &block);
+    static bool hasParentheses(const QTextBlock &block);
+    static bool setIfdefedOut(const QTextBlock &block);
+    static bool clearIfdefedOut(const QTextBlock &block);
+    static bool ifdefedOut(const QTextBlock &block);
+    static int braceDepthDelta(const QTextBlock &block);
+    static int braceDepth(const QTextBlock &block);
+    static void setBraceDepth(QTextBlock &block, int depth);
+    static void changeBraceDepth(QTextBlock &block, int delta);
+
+    static TextBlockUserData *testUserData(const QTextBlock &block) {
+        return static_cast<TextBlockUserData*>(block.userData());
+    }
+    static TextBlockUserData *userData(const QTextBlock &block) {
+        TextBlockUserData *data = static_cast<TextBlockUserData*>(block.userData());
+        if (!data && block.isValid())
+            const_cast<QTextBlock &>(block).setUserData((data = new TextBlockUserData));
+        return data;
+    }
+
+
+    void emitDocumentSizeChanged() { emit documentSizeChanged(documentSize()); }
+    int lastSaveRevision;
+    bool hasMarks;
+};
+
+} // namespace TextEditor
+
+#endif // BASETEXTDOCUMENTLAYOUT_H

src/plugins/texteditor/basetexteditor.h

@@ -35,10 +35,8 @@
 #include <find/ifindsupport.h>
 
 #include <QtGui/QPlainTextEdit>
-#include <QtGui/QTextBlockUserData>
 
 QT_BEGIN_NAMESPACE
-class QKeyEvent;
 class QToolBar;
 class QTimeLine;
 QT_END_NAMESPACE
@@ -55,191 +53,16 @@ namespace Internal {
     class TextEditorOverlay;
 }
 
-class ITextMark;
 class ITextMarkable;
 
-class TextEditorActionHandler;
 class BaseTextDocument;
+class BaseTextEditorEditable;
 class FontSettings;
 struct BehaviorSettings;
 struct DisplaySettings;
 struct StorageSettings;
 struct TabSettings;
 
-struct Parenthesis;
-typedef QVector<Parenthesis> Parentheses;
-
-struct TEXTEDITOR_EXPORT Parenthesis
-{
-    enum Type { Opened, Closed };
-
-    inline Parenthesis() : type(Opened), pos(-1) {}
-    inline Parenthesis(Type t, QChar c, int position)
-        : type(t), chr(c), pos(position) {}
-    Type type;
-    QChar chr;
-    int pos;
-    static int collapseAtPos(const Parentheses &parentheses, QChar *character = 0);
-    static int closeCollapseAtPos(const Parentheses &parentheses);
-    static bool hasClosingCollapse(const Parentheses &parentheses);
-};
-
-
-class TEXTEDITOR_EXPORT TextBlockUserData : public QTextBlockUserData
-{
-public:
-
-    enum CollapseMode { NoCollapse , CollapseThis, CollapseAfter };
-    enum ClosingCollapseMode { NoClosingCollapse, ClosingCollapse, ClosingCollapseAtEnd };
-
-    inline TextBlockUserData()
-        : m_collapseIncludesClosure(false),
-          m_collapseMode(NoCollapse),
-          m_closingCollapseMode(NoClosingCollapse),
-          m_collapsed(false),
-          m_ifdefedOut(false) {}
-    ~TextBlockUserData();
-
-    inline TextMarks marks() const { return m_marks; }
-    inline void addMark(ITextMark *mark) { m_marks += mark; }
-    inline bool removeMark(ITextMark *mark) { return m_marks.removeAll(mark); }
-    inline bool hasMark(ITextMark *mark) const { return m_marks.contains(mark); }
-    inline void clearMarks() { m_marks.clear(); }
-    inline void documentClosing() { Q_FOREACH(ITextMark *tm, m_marks) { tm->documentClosing(); } m_marks.clear();}
-
-    inline CollapseMode collapseMode() const { return (CollapseMode)m_collapseMode; }
-    inline void setCollapseMode(CollapseMode c) { m_collapseMode = c; }
-
-    inline void setClosingCollapseMode(ClosingCollapseMode c) { m_closingCollapseMode = c; }
-    inline ClosingCollapseMode closingCollapseMode() const { return (ClosingCollapseMode) m_closingCollapseMode; }
-
-    inline bool hasClosingCollapse() const { return closingCollapseMode() != NoClosingCollapse; }
-    inline bool hasClosingCollapseAtEnd() const { return closingCollapseMode() == ClosingCollapseAtEnd; }
-    inline bool hasClosingCollapseInside() const { return closingCollapseMode() == ClosingCollapse; }
-
-    inline void setCollapsed(bool b) { m_collapsed = b; }
-    inline bool collapsed() const { return m_collapsed; }
-
-    inline void setCollapseIncludesClosure(bool b) { m_collapseIncludesClosure = b; }
-    inline bool collapseIncludesClosure() const { return m_collapseIncludesClosure; }
-
-    inline void setParentheses(const Parentheses &parentheses) { m_parentheses = parentheses; }
-    inline void clearParentheses() { m_parentheses.clear(); }
-    inline const Parentheses &parentheses() const { return m_parentheses; }
-    inline bool hasParentheses() const { return !m_parentheses.isEmpty(); }
-    int braceDepthDelta() const;
-
-    inline bool setIfdefedOut() { bool result = m_ifdefedOut; m_ifdefedOut = true; return !result; }
-    inline bool clearIfdefedOut() { bool result = m_ifdefedOut; m_ifdefedOut = false; return result;}
-    inline bool ifdefedOut() const { return m_ifdefedOut; }
-
-    inline static TextBlockUserData *canCollapse(const QTextBlock &block) {
-        TextBlockUserData *data = static_cast<TextBlockUserData*>(block.userData());
-        if (!data || data->collapseMode() != CollapseAfter) {
-            data = static_cast<TextBlockUserData*>(block.next().userData());
-            if (!data || data->collapseMode() != TextBlockUserData::CollapseThis)
-                data = 0;
-        }
-        if (data && data->m_ifdefedOut)
-            data = 0;
-        return data;
-    }
-
-    inline static bool hasCollapseAfter(const QTextBlock & block)
-    {
-        if (!block.isValid()) {
-            return false;
-        } else if (block.next().isValid()) {
-            TextBlockUserData *data = static_cast<TextBlockUserData*>(block.next().userData());
-            if (data && data->collapseMode() == TextBlockUserData::CollapseThis &&  !data->m_ifdefedOut)
-                return true;
-        }
-        return false;
-    }
-
-    inline static bool hasClosingCollapse(const QTextBlock &block) {
-        TextBlockUserData *data = static_cast<TextBlockUserData*>(block.userData());
-        return (data && data->hasClosingCollapse());
-    }
-
-    inline static bool hasClosingCollapseAtEnd(const QTextBlock &block) {
-        TextBlockUserData *data = static_cast<TextBlockUserData*>(block.userData());
-        return (data && data->hasClosingCollapseAtEnd());
-    }
-
-    inline static bool hasClosingCollapseInside(const QTextBlock &block) {
-        TextBlockUserData *data = static_cast<TextBlockUserData*>(block.userData());
-        return (data && data->hasClosingCollapseInside());
-    }
-
-    static QTextBlock testCollapse(const QTextBlock& block);
-    static void doCollapse(const QTextBlock& block, bool visible);
-
-    int collapseAtPos(QChar *character = 0) const;
-
-    enum MatchType { NoMatch, Match, Mismatch  };
-    static MatchType checkOpenParenthesis(QTextCursor *cursor, QChar c);
-    static MatchType checkClosedParenthesis(QTextCursor *cursor, QChar c);
-    static MatchType matchCursorBackward(QTextCursor *cursor);
-    static MatchType matchCursorForward(QTextCursor *cursor);
-    static bool findPreviousOpenParenthesis(QTextCursor *cursor, bool select = false);
-    static bool findNextClosingParenthesis(QTextCursor *cursor, bool select = false);
-
-    static bool findPreviousBlockOpenParenthesis(QTextCursor *cursor, bool checkStartPosition = false);
-    static bool findNextBlockClosingParenthesis(QTextCursor *cursor);
-
-
-private:
-    TextMarks m_marks;
-    uint m_collapseIncludesClosure : 1;
-    uint m_collapseMode : 4;
-    uint m_closingCollapseMode : 4;
-    uint m_collapsed : 1;
-    uint m_ifdefedOut : 1;
-    Parentheses m_parentheses;
-};
-
-
-class TEXTEDITOR_EXPORT TextEditDocumentLayout : public QPlainTextDocumentLayout
-{
-    Q_OBJECT
-
-public:
-    TextEditDocumentLayout(QTextDocument *doc);
-    ~TextEditDocumentLayout();
-
-    QRectF blockBoundingRect(const QTextBlock &block) const;
-
-    static void setParentheses(const QTextBlock &block, const Parentheses &parentheses);
-    static void clearParentheses(const QTextBlock &block) { setParentheses(block, Parentheses());}
-    static Parentheses parentheses(const QTextBlock &block);
-    static bool hasParentheses(const QTextBlock &block);
-    static bool setIfdefedOut(const QTextBlock &block);
-    static bool clearIfdefedOut(const QTextBlock &block);
-    static bool ifdefedOut(const QTextBlock &block);
-    static int braceDepthDelta(const QTextBlock &block);
-    static int braceDepth(const QTextBlock &block);
-    static void setBraceDepth(QTextBlock &block, int depth);
-    static void changeBraceDepth(QTextBlock &block, int delta);
-
-    static TextBlockUserData *testUserData(const QTextBlock &block) {
-        return static_cast<TextBlockUserData*>(block.userData());
-    }
-    static TextBlockUserData *userData(const QTextBlock &block) {
-        TextBlockUserData *data = static_cast<TextBlockUserData*>(block.userData());
-        if (!data && block.isValid())
-            const_cast<QTextBlock &>(block).setUserData((data = new TextBlockUserData));
-        return data;
-    }
-
-
-    void emitDocumentSizeChanged() { emit documentSizeChanged(documentSize()); }
-    int lastSaveRevision;