C++: added quickfix to insert a method definition.

Reviewed-by: Christian Kamm

src/plugins/cpptools/cpprefactoringchanges.cpp

@@ -0,0 +1,217 @@
+/**************************************************************************
+**
+** 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 "cpprefactoringchanges.h"
+
+#include <TranslationUnit.h>
+#include <AST.h>
+#include <cpptools/cppcodeformatter.h>
+#include <texteditor/texteditorsettings.h>
+#include <texteditor/tabsettings.h>
+
+#include <QtGui/QTextBlock>
+
+using namespace CPlusPlus;
+using namespace CppTools;
+using namespace Utils;
+
+CppRefactoringChanges::CppRefactoringChanges(const Snapshot &snapshot)
+    : m_snapshot(snapshot)
+    , m_modelManager(CppTools::CppModelManagerInterface::instance())
+{
+    Q_ASSERT(m_modelManager);
+    m_workingCopy = m_modelManager->workingCopy();
+}
+
+const Snapshot &CppRefactoringChanges::snapshot() const
+{
+    return m_snapshot;
+}
+
+CppRefactoringFile CppRefactoringChanges::file(const QString &fileName)
+{
+    return CppRefactoringFile(fileName, this);
+}
+
+void CppRefactoringChanges::indentSelection(const QTextCursor &selection) const
+{
+    // ### shares code with CPPEditor::indent()
+    QTextDocument *doc = selection.document();
+
+    QTextBlock block = doc->findBlock(selection.selectionStart());
+    const QTextBlock end = doc->findBlock(selection.selectionEnd()).next();
+
+    const TextEditor::TabSettings &tabSettings(TextEditor::TextEditorSettings::instance()->tabSettings());
+    CppTools::QtStyleCodeFormatter codeFormatter(tabSettings);
+    codeFormatter.updateStateUntil(block);
+
+    do {
+        int indent;
+        int padding;
+        codeFormatter.indentFor(block, &indent, &padding);
+        tabSettings.indentLine(block, indent + padding, padding);
+        codeFormatter.updateLineStateChange(block);
+        block = block.next();
+    } while (block.isValid() && block != end);
+}
+
+void CppRefactoringChanges::fileChanged(const QString &fileName)
+{
+    m_modelManager->updateSourceFiles(QStringList(fileName));
+}
+
+
+CppRefactoringFile::CppRefactoringFile()
+{ }
+
+CppRefactoringFile::CppRefactoringFile(const QString &fileName, CppRefactoringChanges *refactoringChanges)
+    : RefactoringFile(fileName, refactoringChanges)
+{ }
+
+CppRefactoringFile::CppRefactoringFile(TextEditor::BaseTextEditor *editor, CPlusPlus::Document::Ptr document)
+    : RefactoringFile()
+    , m_cppDocument(document)
+{
+    m_fileName = document->fileName();
+    m_editor = editor;
+}
+
+Document::Ptr CppRefactoringFile::cppDocument() const
+{
+    if (!m_cppDocument) {
+        const QString source = document()->toPlainText();
+        const QString name = fileName();
+        const Snapshot &snapshot = refactoringChanges()->snapshot();
+
+        const QByteArray contents = snapshot.preprocessedCode(source, name);
+        m_cppDocument = snapshot.documentFromSource(contents, name);
+        m_cppDocument->check();
+    }
+
+    return m_cppDocument;
+}
+
+Scope *CppRefactoringFile::scopeAt(unsigned index) const
+{
+    unsigned line, column;
+    cppDocument()->translationUnit()->getTokenStartPosition(index, &line, &column);
+    return cppDocument()->scopeAt(line, column);
+}
+
+bool CppRefactoringFile::isCursorOn(unsigned tokenIndex) const
+{
+    QTextCursor tc = cursor();
+    int cursorBegin = tc.selectionStart();
+
+    int start = startOf(tokenIndex);
+    int end = endOf(tokenIndex);
+
+    if (cursorBegin >= start && cursorBegin <= end)
+        return true;
+
+    return false;
+}
+
+bool CppRefactoringFile::isCursorOn(const AST *ast) const
+{
+    QTextCursor tc = cursor();
+    int cursorBegin = tc.selectionStart();
+
+    int start = startOf(ast);
+    int end = endOf(ast);
+
+    if (cursorBegin >= start && cursorBegin <= end)
+        return true;
+
+    return false;
+}
+
+ChangeSet::Range CppRefactoringFile::range(unsigned tokenIndex) const
+{
+    const Token &token = tokenAt(tokenIndex);
+    unsigned line, column;
+    cppDocument()->translationUnit()->getPosition(token.begin(), &line, &column);
+    const int start = document()->findBlockByNumber(line - 1).position() + column - 1;
+    return ChangeSet::Range(start, start + token.length());
+}
+
+ChangeSet::Range CppRefactoringFile::range(AST *ast) const
+{
+    return ChangeSet::Range(startOf(ast), endOf(ast));
+}
+
+int CppRefactoringFile::startOf(unsigned index) const
+{
+    unsigned line, column;
+    cppDocument()->translationUnit()->getPosition(tokenAt(index).begin(), &line, &column);
+    return document()->findBlockByNumber(line - 1).position() + column - 1;
+}
+
+int CppRefactoringFile::startOf(const AST *ast) const
+{
+    return startOf(ast->firstToken());
+}
+
+int CppRefactoringFile::endOf(unsigned index) const
+{
+    unsigned line, column;
+    cppDocument()->translationUnit()->getPosition(tokenAt(index).end(), &line, &column);
+    return document()->findBlockByNumber(line - 1).position() + column - 1;
+}
+
+int CppRefactoringFile::endOf(const AST *ast) const
+{
+    unsigned end = ast->lastToken();
+    Q_ASSERT(end > 0);
+    return endOf(end - 1);
+}
+
+void CppRefactoringFile::startAndEndOf(unsigned index, int *start, int *end) const
+{
+    unsigned line, column;
+    Token token(tokenAt(index));
+    cppDocument()->translationUnit()->getPosition(token.begin(), &line, &column);
+    *start = document()->findBlockByNumber(line - 1).position() + column - 1;
+    *end = *start + token.length();
+}
+
+QString CppRefactoringFile::textOf(const AST *ast) const
+{
+    return textOf(startOf(ast), endOf(ast));
+}
+
+const Token &CppRefactoringFile::tokenAt(unsigned index) const
+{
+    return cppDocument()->translationUnit()->tokenAt(index);
+}
+
+CppRefactoringChanges *CppRefactoringFile::refactoringChanges() const
+{
+    return static_cast<CppRefactoringChanges *>(m_refactoringChanges);
+}