ClangTools: Move run settings to projects mode

Make the global run settings available per project in project mode and
thus remove the diagnostic config selection from the
selectable-files-dialog:

 * Extract the classes RunSettings and RunSettingsWidget instead of
   duplicating stuff.
 * Ensure to pick up the old settings
 * Add some convenience buttons/links in projects mode allowing to
   restore the global settings, to open the global settings and to
   navigate (back) to the analyzer mode.

Change-Id: I1b91b6f8e58a87a025774e4643c46e176b2a8885
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@qt.io>

src/plugins/clangtools/runsettingswidget.cpp

@@ -0,0 +1,87 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** 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 "runsettingswidget.h"
+
+#include "ui_runsettingswidget.h"
+
+#include "clangtoolssettings.h"
+#include "clangtoolsutils.h"
+
+#include <QThread>
+
+namespace ClangTools {
+namespace Internal {
+
+RunSettingsWidget::RunSettingsWidget(QWidget *parent)
+    : QWidget(parent)
+    , m_ui(new Ui::RunSettingsWidget)
+{
+    m_ui->setupUi(this);
+
+    connect(m_ui->diagnosticWidget,
+            &CppTools::ClangDiagnosticConfigsSelectionWidget::currentConfigChanged,
+            [this](const Core::Id &) { emit changed(); });
+    // m_ui->buildBeforeAnalysis is handled in fromSettings()
+    connect(m_ui->parallelJobsSpinBox,
+            QOverload<int>::of(&QSpinBox::valueChanged),
+            [this](int) { emit changed(); });
+}
+
+RunSettingsWidget::~RunSettingsWidget()
+{
+    delete m_ui;
+}
+
+void RunSettingsWidget::fromSettings(const RunSettings &s)
+{
+    m_ui->diagnosticWidget->refresh(s.diagnosticConfigId());
+
+    disconnect(m_ui->buildBeforeAnalysis, 0, 0, 0);
+    m_ui->buildBeforeAnalysis->setToolTip(hintAboutBuildBeforeAnalysis());
+    m_ui->buildBeforeAnalysis->setCheckState(s.buildBeforeAnalysis() ? Qt::Checked : Qt::Unchecked);
+    connect(m_ui->buildBeforeAnalysis, &QCheckBox::toggled, [this](bool checked) {
+        if (!checked)
+            showHintAboutBuildBeforeAnalysis();
+        emit changed();
+    });
+
+    m_ui->parallelJobsSpinBox->setValue(s.parallelJobs());
+    m_ui->parallelJobsSpinBox->setMinimum(1);
+    m_ui->parallelJobsSpinBox->setMaximum(QThread::idealThreadCount());
+}
+
+RunSettings RunSettingsWidget::toSettings() const
+{
+    RunSettings s;
+    s.setDiagnosticConfigId(m_ui->diagnosticWidget->currentConfigId());
+    s.setBuildBeforeAnalysis(m_ui->buildBeforeAnalysis->checkState() == Qt::CheckState::Checked);
+    s.setParallelJobs(m_ui->parallelJobsSpinBox->value());
+
+    return s;
+}
+
+} // namespace Internal
+} // namespace ClangTools