Move MCUPackage and MCUToolChain package to separate files

Also move `packagePathFromSettings` so it can be used from multiple
places. This function will probably move into a separate utility file
in future changes.

Change-Id: I208a5a7bc8aa689829178809a1f4053a961d93be
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>
Reviewed-by: <piotr.mucko@qt.io>
Reviewed-by: <github-actions-qt-creator@cristianadam.eu>

src/plugins/mcusupport/mcupackage.h

@@ -0,0 +1,157 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 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.
+**
+****************************************************************************/
+
+#pragma once
+
+#include "mcusupportversiondetection.h"
+
+#include <utils/filepath.h>
+#include <utils/id.h>
+
+#include <QObject>
+
+QT_FORWARD_DECLARE_CLASS(QWidget)
+
+namespace ProjectExplorer {
+class ToolChain;
+}
+
+namespace Utils {
+class PathChooser;
+class InfoLabel;
+} // namespace Utils
+
+namespace McuSupport {
+namespace Internal {
+
+class McuPackage : public QObject
+{
+    Q_OBJECT
+
+public:
+    enum Status {
+        EmptyPath,
+        InvalidPath,
+        ValidPathInvalidPackage,
+        ValidPackageMismatchedVersion,
+        ValidPackage
+    };
+
+    McuPackage(const QString &label, const Utils::FilePath &defaultPath,
+               const QString &detectionPath, const QString &settingsKey,
+               const McuPackageVersionDetector *versionDetector = nullptr);
+    virtual ~McuPackage() = default;
+
+    Utils::FilePath basePath() const;
+    Utils::FilePath path() const;
+    QString label() const;
+    Utils::FilePath defaultPath() const;
+    QString detectionPath() const;
+    QString statusText() const;
+    void updateStatus();
+
+    Status status() const;
+    bool validStatus() const;
+    void setDownloadUrl(const QString &url);
+    void setEnvironmentVariableName(const QString &name);
+    void setAddToPath(bool addToPath);
+    bool addToPath() const;
+    void writeGeneralSettings() const;
+    bool writeToSettings() const;
+    void setRelativePathModifier(const QString &path);
+    void setVersions(const QStringList &versions);
+
+    bool automaticKitCreationEnabled() const;
+    void setAutomaticKitCreationEnabled(const bool enabled);
+
+    QWidget *widget();
+
+    QString environmentVariableName() const;
+
+signals:
+    void changed();
+    void statusChanged();
+
+private:
+    void updatePath();
+    void updateStatusUi();
+
+    QWidget *m_widget = nullptr;
+    Utils::PathChooser *m_fileChooser = nullptr;
+    Utils::InfoLabel *m_infoLabel = nullptr;
+
+    const QString m_label;
+    const Utils::FilePath m_defaultPath;
+    const QString m_detectionPath;
+    const QString m_settingsKey;
+    const McuPackageVersionDetector *m_versionDetector;
+
+    Utils::FilePath m_path;
+    QString m_relativePathModifier; // relative path to m_path to be returned by path()
+    QString m_detectedVersion;
+    QStringList m_versions;
+    QString m_downloadUrl;
+    QString m_environmentVariableName;
+    bool m_addToPath = false;
+    bool m_automaticKitCreation = true;
+
+    Status m_status = InvalidPath;
+};
+
+class McuToolChainPackage : public McuPackage
+{
+public:
+    enum Type {
+        TypeArmGcc,
+        TypeIAR,
+        TypeKEIL,
+        TypeGHS,
+        TypeMSVC,
+        TypeGCC,
+        TypeGHSArm,
+        TypeUnsupported
+    };
+
+    McuToolChainPackage(const QString &label,
+                        const Utils::FilePath &defaultPath,
+                        const QString &detectionPath,
+                        const QString &settingsKey,
+                        Type type,
+                        const McuPackageVersionDetector *versionDetector = nullptr
+            );
+
+    Type type() const;
+    bool isDesktopToolchain() const;
+    ProjectExplorer::ToolChain *toolChain(Utils::Id language) const;
+    QString toolChainName() const;
+    QString cmakeToolChainFileName() const;
+    QVariant debuggerId() const;
+
+private:
+    const Type m_type;
+};
+
+} // namespace Internal
+} // namespace McuSupport