CMake: add auto completion for cmake editor

Original Patch by tomdeblauwe <tdb@traficon.be>

Change-Id: I54aea31755dd5702e6998c8343114d34a8752f7b
Reviewed-by: Daniel Teske <daniel.teske@digia.com>

src/plugins/cmakeprojectmanager/cmakefilecompletionassist.cpp

@@ -0,0 +1,57 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 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 "cmakefilecompletionassist.h"
+#include "cmakeprojectconstants.h"
+#include "cmakeprojectmanager.h"
+
+#include <texteditor/codeassist/keywordscompletionassist.h>
+
+using namespace CMakeProjectManager::Internal;
+using namespace TextEditor;
+
+// -------------------------------
+// CMakeFileCompletionAssistProvider
+// -------------------------------
+CMakeFileCompletionAssistProvider::CMakeFileCompletionAssistProvider(CMakeSettingsPage *settingsPage)
+    : m_settingsPage(settingsPage)
+{}
+
+CMakeFileCompletionAssistProvider::~CMakeFileCompletionAssistProvider()
+{}
+
+bool CMakeFileCompletionAssistProvider::supportsEditor(const Core::Id &editorId) const
+{
+    return editorId == CMakeProjectManager::Constants::CMAKE_EDITOR_ID;
+}
+
+IAssistProcessor *CMakeFileCompletionAssistProvider::createProcessor() const
+{
+    return new KeywordsCompletionAssistProcessor(m_settingsPage->keywords());
+}