Editor: add margin displaying to project settings.

This patch also moves the showMargin and marginColumn settings into a
new settings class.

Change-Id: I676447be751c13ee438edc1e31e5998b999c6771
Reviewed-by: Eike Ziller <eike.ziller@digia.com>

1 files changed, 89 insertions, 0 deletions

diff --git a/src/plugins/texteditor/marginsettings.cpp b/src/plugins/texteditor/marginsettings.cpp
new file mode 100644
index 0000000000..e05eeb783a
--- /dev/null
+++ b/src/plugins/texteditor/marginsettings.cpp
@@ -0,0 +1,89 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** 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.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+****************************************************************************/
+
+#include "marginsettings.h"
+
+#include <QSettings>
+#include <QString>
+#include <QVariantMap>
+
+static const char showWrapColumnKey[] = "ShowMargin";
+static const char wrapColumnKey[] = "MarginColumn";
+static const char groupPostfix[] = "MarginSettings";
+
+using namespace TextEditor;
+
+MarginSettings::MarginSettings()
+    : m_showMargin(false)
+    , m_marginColumn(80)
+{
+}
+
+void MarginSettings::toSettings(const QString &category, QSettings *s) const
+{
+    QString group = QLatin1String(groupPostfix);
+    if (!category.isEmpty())
+        group.insert(0, category);
+    s->beginGroup(group);
+    s->setValue(QLatin1String(showWrapColumnKey), m_showMargin);
+    s->setValue(QLatin1String(wrapColumnKey), m_marginColumn);
+    s->endGroup();
+}
+
+void MarginSettings::fromSettings(const QString &category, const QSettings *s)
+{
+    QString group = QLatin1String(groupPostfix);
+    if (!category.isEmpty())
+        group.insert(0, category);
+    group += QLatin1Char('/');
+
+    *this = MarginSettings(); // Assign defaults
+
+    m_showMargin = s->value(group + QLatin1String(showWrapColumnKey), m_showMargin).toBool();
+    m_marginColumn = s->value(group + QLatin1String(wrapColumnKey), m_marginColumn).toInt();
+}
+
+void MarginSettings::toMap(const QString &prefix, QVariantMap *map) const
+{
+    map->insert(prefix + QLatin1String(showWrapColumnKey), m_showMargin);
+    map->insert(prefix + QLatin1String(wrapColumnKey), m_marginColumn);
+}
+
+void MarginSettings::fromMap(const QString &prefix, const QVariantMap &map)
+{
+    m_showMargin = map.value(prefix + QLatin1String(showWrapColumnKey), m_showMargin).toBool();
+    m_marginColumn = map.value(prefix + QLatin1String(wrapColumnKey), m_marginColumn).toInt();
+}
+
+bool MarginSettings::equals(const MarginSettings &other) const
+{
+    return m_showMargin == other.m_showMargin
+        && m_marginColumn == other.m_marginColumn
+        ;
+}