Meson: Flatten directory hierarchy

Keep tests/ and icons/ but put the rest into the toplevel.

The previous setup was so different from the rest of the bunch that
it regularly stuck out in maintenance tasks.

Change-Id: I69821be6268f69682353a388f6bb1fa343215303
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>

src/plugins/mesonprojectmanager/toolssettingswidget.cpp

@@ -0,0 +1,106 @@
+// Copyright (C) 2020 Alexis Jeandet.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
+
+#include "toolssettingswidget.h"
+
+#include "toolsmodel.h"
+#include "tooltreeitem.h"
+
+#include <utils/detailswidget.h>
+#include <utils/layoutbuilder.h>
+
+#include <QHeaderView>
+#include <QPushButton>
+#include <QTreeView>
+
+using namespace Utils;
+
+namespace MesonProjectManager::Internal {
+
+ToolsSettingsWidget::ToolsSettingsWidget()
+    : Core::IOptionsPageWidget()
+{
+    m_mesonList = new QTreeView;
+    m_mesonList->setModel(&m_model);
+    m_mesonList->expandAll();
+    m_mesonList->header()->setSectionResizeMode(0, QHeaderView::ResizeToContents);
+    m_mesonList->header()->setSectionResizeMode(1, QHeaderView::Stretch);
+
+    m_itemSettings = new ToolItemSettings;
+
+    m_mesonDetails = new DetailsWidget;
+    m_mesonDetails->setState(DetailsWidget::NoSummary);
+    m_mesonDetails->setVisible(false);
+    m_mesonDetails->setWidget(m_itemSettings);
+
+    auto addButton = new QPushButton(tr("Add"));
+
+    m_cloneButton = new QPushButton(tr("Clone"));
+    m_cloneButton->setEnabled(false);
+
+    m_removeButton = new QPushButton(tr("Remove"));
+    m_removeButton->setEnabled(false);
+
+    auto makeDefaultButton = new QPushButton(tr("Make Default"));
+    makeDefaultButton->setEnabled(false);
+    makeDefaultButton->setVisible(false);
+    makeDefaultButton->setToolTip(tr("Set as the default Meson executable to use "
+                                     "when creating a new kit or when no value is set."));
+
+    using namespace Layouting;
+
+    Row {
+        Column {
+            m_mesonList,
+            m_mesonDetails
+        },
+        Column {
+            addButton,
+            m_cloneButton,
+            m_removeButton,
+            makeDefaultButton,
+            st
+        }
+    }.attachTo(this);
+
+    connect(m_mesonList->selectionModel(), &QItemSelectionModel::currentChanged,
+            this, &ToolsSettingsWidget::currentMesonToolChanged);
+    connect(m_itemSettings, &ToolItemSettings::applyChanges, &m_model, &ToolsModel::updateItem);
+
+    connect(addButton, &QPushButton::clicked, &m_model, QOverload<>::of(&ToolsModel::addMesonTool));
+    connect(m_cloneButton, &QPushButton::clicked, this, &ToolsSettingsWidget::cloneMesonTool);
+    connect(m_removeButton, &QPushButton::clicked, this, &ToolsSettingsWidget::removeMesonTool);
+}
+
+ToolsSettingsWidget::~ToolsSettingsWidget() = default;
+
+void ToolsSettingsWidget::cloneMesonTool()
+{
+    if (m_currentItem) {
+        auto newItem = m_model.cloneMesonTool(m_currentItem);
+        m_mesonList->setCurrentIndex(newItem->index());
+    }
+}
+
+void ToolsSettingsWidget::removeMesonTool()
+{
+    if (m_currentItem) {
+        m_model.removeMesonTool(m_currentItem);
+    }
+}
+
+void ToolsSettingsWidget::currentMesonToolChanged(const QModelIndex &newCurrent)
+{
+    m_currentItem = m_model.mesoneToolTreeItem(newCurrent);
+    m_itemSettings->load(m_currentItem);
+    m_mesonDetails->setVisible(m_currentItem);
+    m_cloneButton->setEnabled(m_currentItem);
+    m_removeButton->setEnabled(m_currentItem && !m_currentItem->isAutoDetected());
+}
+
+void ToolsSettingsWidget::apply()
+{
+    m_model.apply();
+}
+
+} // MesonProjectManager::Internal