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/clangstaticanalyzerdiagnosticmodel.cpp

@@ -0,0 +1,121 @@
+/****************************************************************************
+**
+** 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 "clangstaticanalyzerdiagnosticmodel.h"
+
+#include "clangstaticanalyzerutils.h"
+
+#include <QCoreApplication>
+
+namespace ClangStaticAnalyzer {
+namespace Internal {
+
+ClangStaticAnalyzerDiagnosticModel::ClangStaticAnalyzerDiagnosticModel(QObject *parent)
+    : QAbstractListModel(parent)
+{
+}
+
+void ClangStaticAnalyzerDiagnosticModel::addDiagnostics(const QList<Diagnostic> &diagnostics)
+{
+    beginInsertRows(QModelIndex(), m_diagnostics.size(),
+                    m_diagnostics.size() + diagnostics.size() - 1 );
+    m_diagnostics += diagnostics;
+    endInsertRows();
+}
+
+void ClangStaticAnalyzerDiagnosticModel::clear()
+{
+    beginResetModel();
+    m_diagnostics.clear();
+    endResetModel();
+}
+
+int ClangStaticAnalyzerDiagnosticModel::rowCount(const QModelIndex &parent) const
+{
+    return parent.isValid() ? 0 : m_diagnostics.count();
+}
+
+static QString createDiagnosticToolTipString(const Diagnostic &diagnostic)
+{
+    typedef QPair<QString, QString> StringPair;
+    QList<StringPair> lines;
+
+    if (!diagnostic.category.isEmpty()) {
+        lines << qMakePair(
+                     QCoreApplication::translate("ClangStaticAnalyzer::Diagnostic", "Category:"),
+                     diagnostic.category);
+    }
+
+    if (!diagnostic.type.isEmpty()) {
+        lines << qMakePair(
+                     QCoreApplication::translate("ClangStaticAnalyzer::Diagnostic", "Type:"),
+                     diagnostic.type);
+    }
+
+    if (!diagnostic.issueContext.isEmpty() && !diagnostic.issueContextKind.isEmpty()) {
+        lines << qMakePair(
+                     QCoreApplication::translate("ClangStaticAnalyzer::Diagnostic", "Context:"),
+                     diagnostic.issueContextKind + QLatin1Char(' ') + diagnostic.issueContext);
+    }
+
+    lines << qMakePair(
+        QCoreApplication::translate("ClangStaticAnalyzer::Diagnostic", "Location:"),
+                createFullLocationString(diagnostic.location));
+
+    QString html = QLatin1String("<html>"
+                   "<head>"
+                   "<style>dt { font-weight:bold; } dd { font-family: monospace; }</style>\n"
+                   "<body><dl>");
+
+    foreach (const StringPair &pair, lines) {
+        html += QLatin1String("<dt>");
+        html += pair.first;
+        html += QLatin1String("</dt><dd>");
+        html += pair.second;
+        html += QLatin1String("</dd>\n");
+    }
+    html += QLatin1String("</dl></body></html>");
+    return html;
+}
+
+QVariant ClangStaticAnalyzerDiagnosticModel::data(const QModelIndex &index, int role) const
+{
+    if (!index.isValid())
+        return QVariant();
+
+    if (index.parent().isValid())
+        return QVariant();
+
+    const int row = index.row();
+    if (row < 0 || row >= m_diagnostics.size())
+        return QVariant();
+
+    const Diagnostic diagnostic = m_diagnostics.at(row);
+
+    if (role == Qt::DisplayRole)
+        return QString(QLatin1String("Some specific diagnostic")); // TODO: Remove?
+    else if (role == Qt::ToolTipRole)
+        return createDiagnosticToolTipString(diagnostic);
+    else if (role == Qt::UserRole)
+        return QVariant::fromValue<Diagnostic>(diagnostic);
+
+    return QVariant();
+}
+
+} // namespace Internal
+} // namespace ClangStaticAnalyzer