Generalized QuickFixOperation.

src/plugins/texteditor/quickfix.cpp

+/**************************************************************************
+**
+** 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.
+**
+**************************************************************************/
+
+#include "quickfix.h"
+#include "basetexteditor.h"
+
+#include <QtGui/QApplication>
+#include <QtGui/QTextBlock>
+
+#include <QtCore/QDebug>
+
+using TextEditor::QuickFixOperation;
+
+QuickFixOperation::QuickFixOperation(TextEditor::BaseTextEditor *editor)
+    : _editor(editor)
+{
+}
+
+QuickFixOperation::~QuickFixOperation()
+{
+}
+
+TextEditor::BaseTextEditor *QuickFixOperation::editor() const
+{
+    return _editor;
+}
+
+QTextCursor QuickFixOperation::textCursor() const
+{
+    return _textCursor;
+}
+
+void QuickFixOperation::setTextCursor(const QTextCursor &cursor)
+{
+    _textCursor = cursor;
+}
+
+int QuickFixOperation::selectionStart() const
+{
+    return _textCursor.selectionStart();
+}
+
+int QuickFixOperation::selectionEnd() const
+{
+    return _textCursor.selectionEnd();
+}
+
+const Utils::ChangeSet &QuickFixOperation::changeSet() const
+{
+    return _changeSet;
+}
+
+void QuickFixOperation::apply()
+{
+    const Range r = topLevelRange();
+
+    _textCursor.beginEditBlock();
+    _changeSet.apply(&_textCursor);
+    reindent(r);
+    _textCursor.endEditBlock();
+}
+
+QuickFixOperation::Range QuickFixOperation::range(int from, int to) const
+{
+    QTextDocument *doc = editor()->document();
+
+    QTextCursor begin(doc);
+    begin.setPosition(from);
+
+    QTextCursor end(doc);
+    end.setPosition(to);
+
+    Range range;
+    range.begin = begin;
+    range.end = end;
+    return range;
+}
+
+int QuickFixOperation::position(int line, int column) const
+{
+    QTextDocument *doc = editor()->document();
+    return doc->findBlockByNumber(line - 1).position() + column - 1;
+}
+
+void QuickFixOperation::reindent(const Range &range)
+{
+    QTextCursor tc = range.begin;
+    tc.setPosition(range.end.position(), QTextCursor::KeepAnchor);
+    editor()->indentInsertedText(tc);
+}
+
+void QuickFixOperation::move(int start, int end, int to)
+{
+    _changeSet.move(start, end-start, to);
+}
+
+void QuickFixOperation::replace(int start, int end, const QString &replacement)
+{
+    _changeSet.replace(start, end-start, replacement);
+}
+
+void QuickFixOperation::insert(int at, const QString &text)
+{
+    _changeSet.insert(at, text);
+}
+
+void QuickFixOperation::remove(int start, int end)
+{
+    _changeSet.remove(start, end-start);
+}
+
+void QuickFixOperation::flip(int start1, int end1, int start2, int end2)
+{
+    _changeSet.flip(start1, end1-start1, start2, end2-start2);
+}
+
+void QuickFixOperation::copy(int start, int end, int to)
+{
+    _changeSet.copy(start, end-start, to);
+}
+
+QChar QuickFixOperation::charAt(int offset) const
+{
+    QTextDocument *doc = _textCursor.document();
+    return doc->characterAt(offset);
+}
+
+QString QuickFixOperation::textOf(int start, int end) const
+{
+    QTextCursor tc = _textCursor;
+    tc.setPosition(start);
+    tc.setPosition(end, QTextCursor::KeepAnchor);
+    return tc.selectedText();
+}

src/plugins/texteditor/quickfix.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 TEXTEDITORQUICKFIX_H
+#define TEXTEDITORQUICKFIX_H
+
+#include "texteditor_global.h"
+#include <utils/changeset.h>
+
+#include <QtCore/QSharedPointer>
+#include <QtGui/QTextCursor>
+
+namespace TextEditor {
+
+class BaseTextEditor;
+class QuickFixOperation;
+
+class TEXTEDITOR_EXPORT QuickFixState
+{
+    Q_DISABLE_COPY(QuickFixState)
+
+public:
+    QuickFixState() {}
+    virtual ~QuickFixState() {}
+};
+
+class TEXTEDITOR_EXPORT QuickFixOperation
+{
+    Q_DISABLE_COPY(QuickFixOperation)
+
+public:
+    typedef QSharedPointer<QuickFixOperation> Ptr;
+
+    struct Range {
+        Range() {}
+        Range(const QTextCursor &tc): begin(tc), end(tc) {}
+
+        QTextCursor begin;
+        QTextCursor end;
+    };
+
+public:
+    QuickFixOperation(TextEditor::BaseTextEditor *editor);
+    virtual ~QuickFixOperation();
+
+    virtual QString description() const = 0;
+    virtual void createChangeSet() = 0;
+    virtual Range topLevelRange() const = 0;
+
+    virtual int match(QuickFixState *state) = 0;
+
+    void apply();
+
+    TextEditor::BaseTextEditor *editor() const;
+
+    QTextCursor textCursor() const;
+    void setTextCursor(const QTextCursor &cursor);
+
+    void reindent(const Range &range);
+
+    int selectionStart() const;
+    int selectionEnd() const;
+
+    int position(int line, int column) const;
+    Range range(int from, int to) const;
+
+    void move(int start, int end, int to);
+    void replace(int start, int end, const QString &replacement);
+    void insert(int at, const QString &text);
+    void remove(int start, int end);
+    void flip(int start1, int end1, int start2, int end2);
+    void copy(int start, int end, int to);
+
+    QChar charAt(int offset) const;
+    QString textOf(int start, int end) const;
+
+    const Utils::ChangeSet &changeSet() const;
+
+private:
+    TextEditor::BaseTextEditor *_editor;
+    QTextCursor _textCursor;
+    Utils::ChangeSet _changeSet;
+};
+
+} // end of namespace TextEditor
+
+#endif // TEXTEDITORQUICKFIX_H

src/plugins/texteditor/texteditor.pro

@@ -41,6 +41,7 @@ SOURCES += texteditorplugin.cpp \
     completionsettings.cpp \
     normalindenter.cpp \
     indenter.cpp \
+    quickfix.cpp \
     generichighlighter/itemdata.cpp \
     generichighlighter/specificrules.cpp \
     generichighlighter/rule.cpp \
@@ -95,6 +96,7 @@ HEADERS += texteditorplugin.h \
     completionsettings.h \
     normalindenter.h \
     indenter.h \
+    quickfix.h \
     generichighlighter/reuse.h \
     generichighlighter/itemdata.h \
     generichighlighter/specificrules.h \