Snippets: Feature enhancement start...

Provide an interface so users can create/edit/remove snippets.

src/plugins/texteditor/snippets/snippetssettingspage.h

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+/**************************************************************************
+**
+** 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 SNIPPETSSETTINGSPAGE_H
+#define SNIPPETSSETTINGSPAGE_H
+
+#include "texteditoroptionspage.h"
+
+namespace TextEditor {
+namespace Internal {
+
+class SnippetsSettingsPagePrivate;
+
+class SnippetsSettingsPage : public TextEditorOptionsPage
+{
+    Q_OBJECT
+public:
+    SnippetsSettingsPage(const QString &id, QObject *parent);
+    virtual ~SnippetsSettingsPage();
+
+    virtual QString id() const;
+    virtual QString displayName() const;
+    virtual bool matches(const QString &s) const;
+    virtual QWidget *createPage(QWidget *parent);
+    virtual void apply();
+    virtual void finish();
+
+private:
+    SnippetsSettingsPagePrivate *m_d;
+};
+
+} // Internal
+} // TextEditor
+
+#endif // SNIPPETSSETTINGSPAGE_H