Import Clang Static Analyzer plugin

This plugin adds "Clang Static Analyzer" to the Analyze mode, which
processes all implementation/source project files of the current
project. For this, it will call the clang executable for each file.

The found diagnostics will be displayed in a view similar to the one
used in "Valgrind Memory Analyzer".

The user can specify the clang executable to use and the number of
concurrent processes to launch in Menu: Tools > Options > Analyzer >
Clang Static Analyzer.

Main TODOs:

 * Fiddle around the appropriate command line options, currently only
   defines and include paths are passed on.

 * Tests on Windows / OS X.

 * Remove dependency to clangcodemodel by moving the functions that
   create command line arguments to CppTools. Mostly they are not even
   specific to clang (but would also work with gcc).

 * Maybe limit to a range of tested clang versions.

 * How to deal with directory containing all the log files after the
   user starts a new run or Creator is shut down? (delete it? leave it
   there? make it configurable?).

 * Find out how to properly integrate the tests.

Imaginable future additions:

 * Adding a button to load result/log files from a directory, e.g. if
   the user used the 'scan-build' approach.

 * Adding a button with a filter menu in order to display only
   diagnostics from certain categories, similar to "Valgrind Memory
   Analyzer".

Change-Id: I6aeb5dfdbdfa239a06c03dd8759a983df71b77ea
Reviewed-by: Eike Ziller <eike.ziller@theqtcompany.com>

plugins/clangstaticanalyzer/clangstaticanalyzerconfigwidget.cpp

@@ -0,0 +1,58 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use contact form at http://qt.digia.com <http://qt.digia.com/>
+**
+** This file is part of the Qt Enterprise LicenseChecker Add-on.
+**
+** Licensees holding valid Qt Enterprise licenses may use this file in
+** accordance with the Qt Enterprise License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://qt.digia.com <http://qt.digia.com/>
+**
+****************************************************************************/
+
+#include "clangstaticanalyzerconfigwidget.h"
+#include "ui_clangstaticanalyzerconfigwidget.h"
+
+#include <QThread>
+
+namespace ClangStaticAnalyzer {
+namespace Internal {
+
+ClangStaticAnalyzerConfigWidget::ClangStaticAnalyzerConfigWidget(
+        ClangStaticAnalyzerSettings *settings,
+        QWidget *parent)
+    : QWidget(parent)
+    , m_ui(new Ui::ClangStaticAnalyzerConfigWidget)
+    , m_settings(settings)
+{
+    m_ui->setupUi(this);
+
+    m_ui->clangExecutableChooser->setExpectedKind(Utils::PathChooser::ExistingCommand);
+    m_ui->clangExecutableChooser->setHistoryCompleter(
+                QLatin1String("ClangStaticAnalyzer.ClangCommand.History"));
+    m_ui->clangExecutableChooser->setPromptDialogTitle(tr("Clang Command"));
+    m_ui->clangExecutableChooser->setPath(settings->clangExecutable());
+    connect(m_ui->clangExecutableChooser, &Utils::PathChooser::changed,
+            m_settings, &ClangStaticAnalyzerSettings::setClangExecutable);
+
+    m_ui->simultaneousProccessesSpinBox->setValue(settings->simultaneousProcesses());
+    m_ui->simultaneousProccessesSpinBox->setMinimum(1);
+    m_ui->simultaneousProccessesSpinBox->setMaximum(QThread::idealThreadCount());
+    connect(m_ui->simultaneousProccessesSpinBox,
+            static_cast<void (QSpinBox::*)(int)>(&QSpinBox::valueChanged),
+            m_settings, &ClangStaticAnalyzerSettings::setSimultaneousProcesses);
+}
+
+ClangStaticAnalyzerConfigWidget::~ClangStaticAnalyzerConfigWidget()
+{
+    delete m_ui;
+}
+
+} // namespace Internal
+} // namespace ClangStaticAnalyzer