Introduced the quick fix engine

src/plugins/cppeditor/cppquickfix.cpp

@@ -0,0 +1,141 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2009 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 "cppquickfix.h"
+#include "cppeditor.h"
+#include <TranslationUnit.h>
+#include <Token.h>
+
+#include <cpptools/cppmodelmanagerinterface.h>
+#include <QtDebug>
+
+using namespace CppEditor::Internal;
+using namespace CPlusPlus;
+
+QuickFixOperation::QuickFixOperation(CPlusPlus::Document::Ptr doc, const CPlusPlus::Snapshot &snapshot)
+    : _doc(doc), _snapshot(snapshot)
+{ }
+
+QuickFixOperation::~QuickFixOperation()
+{ }
+
+QTextCursor QuickFixOperation::textCursor() const
+{ return _textCursor; }
+
+void QuickFixOperation::setTextCursor(const QTextCursor &tc)
+{ _textCursor = tc; }
+
+const CPlusPlus::Token &QuickFixOperation::tokenAt(unsigned index) const
+{ return _doc->translationUnit()->tokenAt(index); }
+
+void QuickFixOperation::getTokenStartPosition(unsigned index, unsigned *line, unsigned *column) const
+{ _doc->translationUnit()->getPosition(tokenAt(index).begin(), line, column); }
+
+void QuickFixOperation::getTokenEndPosition(unsigned index, unsigned *line, unsigned *column) const
+{ _doc->translationUnit()->getPosition(tokenAt(index).end(), line, column); }
+
+QTextCursor QuickFixOperation::cursor(unsigned index) const
+{
+    const Token &tk = tokenAt(index);
+
+    unsigned line, col;
+    getTokenStartPosition(index, &line, &col);
+    QTextCursor tc = _textCursor;
+    tc.setPosition(tc.document()->findBlockByNumber(line - 1).position() + col - 1);
+    tc.setPosition(tc.position() + tk.f.length, QTextCursor::KeepAnchor);
+    return tc;
+}
+
+QTextCursor QuickFixOperation::moveAtStartOfToken(unsigned index) const
+{
+    unsigned line, col;
+    getTokenStartPosition(index, &line, &col);
+    QTextCursor tc = _textCursor;
+    tc.setPosition(tc.document()->findBlockByNumber(line - 1).position() + col - 1);
+    return tc;
+}
+
+QTextCursor QuickFixOperation::moveAtEndOfToken(unsigned index) const
+{
+    const Token &tk = tokenAt(index);
+
+    unsigned line, col;
+    getTokenStartPosition(index, &line, &col);
+    QTextCursor tc = _textCursor;
+    tc.setPosition(tc.document()->findBlockByNumber(line - 1).position() + col + tk.f.length - 1);
+    return tc;
+}
+
+CPPQuickFixCollector::CPPQuickFixCollector()
+    : _modelManager(CppTools::CppModelManagerInterface::instance()), _editor(0)
+{ }
+
+CPPQuickFixCollector::~CPPQuickFixCollector()
+{ }
+
+bool CPPQuickFixCollector::supportsEditor(TextEditor::ITextEditable *editor)
+{ return qobject_cast<CPPEditorEditable *>(editor) != 0; }
+
+bool CPPQuickFixCollector::triggersCompletion(TextEditor::ITextEditable *)
+{
+    qDebug() << Q_FUNC_INFO;
+    return false;
+}
+
+int CPPQuickFixCollector::startCompletion(TextEditor::ITextEditable *editable)
+{
+    qDebug() << Q_FUNC_INFO;
+    Q_ASSERT(editable != 0);
+    _editor = qobject_cast<CPPEditor *>(editable->widget());
+    return -1;
+}
+
+void CPPQuickFixCollector::completions(QList<TextEditor::CompletionItem> *quicFixItems)
+{
+    quicFixItems->append(_quickFixItems);
+}
+
+void CPPQuickFixCollector::complete(const TextEditor::CompletionItem &item)
+{
+    qDebug() << Q_FUNC_INFO;
+
+    const int index = item.data.toInt();
+
+    QList<QuickFixOperationPtr> quickFixes; // ### get get the quick fixes.
+
+    if (index < quickFixes.size()) {
+        QuickFixOperationPtr quickFix = quickFixes.at(index);
+        quickFix->apply(_editor->textCursor());
+    }
+}
+
+void CPPQuickFixCollector::cleanup()
+{
+    _quickFixItems.clear();
+}