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Diffstat (limited to 'src/plugins/cpptools/cppqtstyleindenter.cpp')
| -rw-r--r-- | src/plugins/cpptools/cppqtstyleindenter.cpp | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/src/plugins/cpptools/cppqtstyleindenter.cpp b/src/plugins/cpptools/cppqtstyleindenter.cpp new file mode 100644 index 0000000000..892cc17349 --- /dev/null +++ b/src/plugins/cpptools/cppqtstyleindenter.cpp @@ -0,0 +1,164 @@ +/************************************************************************** +** +** This file is part of Qt Creator +** +** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies). +** +** Contact: Nokia Corporation (info@qt.nokia.com) +** +** +** GNU Lesser General Public License Usage +** +** 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. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** Other Usage +** +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** If you have questions regarding the use of this file, please contact +** Nokia at info@qt.nokia.com. +** +**************************************************************************/ + +#include "cppqtstyleindenter.h" + +#include "cppcodeformatter.h" +#include "cpptoolssettings.h" +#include "cppcodestylepreferences.h" +#include "cpptoolsconstants.h" +#include <texteditor/basetexteditor.h> +#include <texteditor/tabsettings.h> +#include <texteditor/texteditorsettings.h> + +#include <QtCore/QChar> +#include <QtGui/QTextDocument> +#include <QtGui/QTextBlock> +#include <QtGui/QTextCursor> + +using namespace CppTools; + +CppQtStyleIndenter::CppQtStyleIndenter() + : m_cppCodeStylePreferences(0) +{ + m_cppCodeStylePreferences = CppToolsSettings::instance()->cppCodeStylePreferences(); +} + +CppQtStyleIndenter::~CppQtStyleIndenter() +{} + +bool CppQtStyleIndenter::isElectricCharacter(const QChar &ch) const +{ + if (ch == QLatin1Char('{') || + ch == QLatin1Char('}') || + ch == QLatin1Char(':') || + ch == QLatin1Char('#')) { + return true; + } + return false; +} + +static bool colonIsElectric(const QString &text) +{ + // switch cases and access declarations should be reindented + if (text.contains(QLatin1String("case")) + || text.contains(QLatin1String("default")) + || text.contains(QLatin1String("public")) + || text.contains(QLatin1String("private")) + || text.contains(QLatin1String("protected")) + || text.contains(QLatin1String("signals"))) { + return true; + } + + // lines that start with : might have a constructor initializer list + const QString trimmedtext = text.trimmed(); + if (!trimmedtext.isEmpty() && trimmedtext.at(0) == QLatin1Char(':')) + return true; + + return false; +} + +void CppQtStyleIndenter::indentBlock(QTextDocument *doc, + const QTextBlock &block, + const QChar &typedChar, + TextEditor::BaseTextEditorWidget *editor) +{ + Q_UNUSED(doc) + + const TextEditor::TabSettings &ts = editor->tabSettings(); + CppTools::QtStyleCodeFormatter codeFormatter(ts, codeStyleSettings()); + + codeFormatter.updateStateUntil(block); + int indent; + int padding; + codeFormatter.indentFor(block, &indent, &padding); + + if (isElectricCharacter(typedChar)) { + // : should not be electric for labels + if (typedChar == QLatin1Char(':') && !colonIsElectric(block.text())) + return; + + // only reindent the current line when typing electric characters if the + // indent is the same it would be if the line were empty + int newlineIndent; + int newlinePadding; + codeFormatter.indentForNewLineAfter(block.previous(), &newlineIndent, &newlinePadding); + if (ts.indentationColumn(block.text()) != newlineIndent + newlinePadding) + return; + } + + ts.indentLine(block, indent + padding, padding); +} + +void CppQtStyleIndenter::indent(QTextDocument *doc, + const QTextCursor &cursor, + const QChar &typedChar, + TextEditor::BaseTextEditorWidget *editor) +{ + if (cursor.hasSelection()) { + QTextBlock block = doc->findBlock(cursor.selectionStart()); + const QTextBlock end = doc->findBlock(cursor.selectionEnd()).next(); + + const TextEditor::TabSettings &ts = editor->tabSettings(); + CppTools::QtStyleCodeFormatter codeFormatter(ts, codeStyleSettings()); + codeFormatter.updateStateUntil(block); + + QTextCursor tc = editor->textCursor(); + tc.beginEditBlock(); + do { + int indent; + int padding; + codeFormatter.indentFor(block, &indent, &padding); + ts.indentLine(block, indent + padding, padding); + codeFormatter.updateLineStateChange(block); + block = block.next(); + } while (block.isValid() && block != end); + tc.endEditBlock(); + } else { + indentBlock(doc, cursor.block(), typedChar, editor); + } +} + +void CppQtStyleIndenter::setCodeStylePreferences(TextEditor::IFallbackPreferences *preferences) +{ + CppTools::CppCodeStylePreferences *cppCodeStylePreferences + = qobject_cast<CppTools::CppCodeStylePreferences *>(preferences); + if (cppCodeStylePreferences) + m_cppCodeStylePreferences = cppCodeStylePreferences; +} + +CppCodeStyleSettings CppQtStyleIndenter::codeStyleSettings() const +{ + if (m_cppCodeStylePreferences) + return m_cppCodeStylePreferences->currentSettings(); + return CppCodeStyleSettings(); +} |