Cppcheck: Add ability to manually run cppcheck

Run cppcheck on selected files from current project via "Analyze"->"Cppcheck...."
Show results in a separate view in the same manner as ClangTools plugin.

Fixes: QTCREATORBUG-21673
Change-Id: Ibcaf4057a387a990f1da59025f15ba58f996953f
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@qt.io>

src/plugins/cppcheck/cppcheckmanualrundialog.cpp

@@ -0,0 +1,108 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 Sergey Morozov
+** Contact: https://www.qt.io/licensing/
+**
+** 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 The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#include "cppcheckmanualrundialog.h"
+#include "cppcheckoptions.h"
+
+#include <projectexplorer/selectablefilesmodel.h>
+
+#include <cpptools/projectinfo.h>
+
+#include <utils/qtcassert.h>
+
+#include <QBoxLayout>
+#include <QDialogButtonBox>
+#include <QPushButton>
+
+namespace Cppcheck {
+namespace Internal {
+
+ManualRunDialog::ManualRunDialog(const CppcheckOptions &options,
+                                 const ProjectExplorer::Project *project)
+    : QDialog(),
+    m_options(new OptionsWidget(this)),
+    m_model(new ProjectExplorer::SelectableFilesFromDirModel(this))
+{
+    QTC_ASSERT(project, return );
+
+    setWindowTitle(tr("Cppcheck run configuration"));
+
+    auto view = new QTreeView;
+    view->setHeaderHidden(true);
+    view->setModel(m_model);
+
+    connect(m_model, &ProjectExplorer::SelectableFilesFromDirModel::parsingFinished,
+            view, [this, view] {
+                m_model->applyFilter("*.cpp;*.cxx;*.c;*.cc;*.C", {});
+                view->expandToDepth(0);
+            });
+    m_model->startParsing(project->rootProjectDirectory());
+
+    auto buttons = new QDialogButtonBox;
+    buttons->setStandardButtons(QDialogButtonBox::Cancel);
+    connect(buttons, &QDialogButtonBox::accepted,
+            this, &QDialog::accept);
+    connect(buttons, &QDialogButtonBox::rejected,
+            this, &QDialog::reject);
+
+    auto analyzeButton = new QPushButton(tr("Analyze"));
+    buttons->addButton(analyzeButton, QDialogButtonBox::AcceptRole);
+    analyzeButton->setEnabled(m_model->hasCheckedFiles());
+    connect(m_model, &QAbstractItemModel::dataChanged,
+            analyzeButton, [this, analyzeButton]() {
+        analyzeButton->setEnabled(m_model->hasCheckedFiles());
+    });
+
+    auto layout = new QVBoxLayout(this);
+    layout->addWidget(m_options);
+    layout->addWidget(view);
+    layout->addWidget(buttons);
+
+    if (auto layout = m_options->layout())
+        layout->setMargin(0);
+
+    m_options->load(options);
+}
+
+CppcheckOptions ManualRunDialog::options() const
+{
+    CppcheckOptions result;
+    m_options->save(result);
+    return result;
+}
+
+Utils::FilePathList ManualRunDialog::filePaths() const
+{
+    return m_model->selectedFiles();
+}
+
+QSize ManualRunDialog::sizeHint() const
+{
+    const auto original = QDialog::sizeHint();
+    return {original.width() * 2, original.height()};
+}
+
+} // namespace Internal
+} // namespace Cppcheck