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/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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****************************************************************************/
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#ifndef IWIZARDFACTORY_H
#define IWIZARDFACTORY_H
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#include <coreplugin/core_global.h>
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#include <coreplugin/featureprovider.h>
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#include <QIcon>
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#include <QObject>
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#include <QString>
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#include <functional>

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QT_FORWARD_DECLARE_CLASS(QAction)

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namespace Utils { class Wizard; }

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namespace Core {

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namespace Internal { class CorePlugin; }

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class CORE_EXPORT IWizardFactory
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    : public QObject
{
    Q_OBJECT
public:
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    enum WizardKind {
        FileWizard = 0x01,
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        ProjectWizard = 0x02
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    };
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    enum WizardFlag {
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        PlatformIndependent = 0x01,
        ForceCapitalLetterForFileName = 0x02
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    };
    Q_DECLARE_FLAGS(WizardFlags, WizardFlag)
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    IWizardFactory() : m_kind(FileWizard) { }
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    Id id() const { return m_id; }
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    WizardKind kind() const { return m_kind; }
    QIcon icon() const { return m_icon; }
    QString description() const { return m_description; }
    QString displayName() const { return m_displayName; }
    QString category() const { return m_category; }
    QString displayCategory() const { return m_displayCategory; }
    QString descriptionImage() const { return m_descriptionImage; }
    FeatureSet requiredFeatures() const { return m_requiredFeatures; }
    WizardFlags flags() const { return m_flags; }

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    void setId(const Id id) { m_id = id; }
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    void setWizardKind(WizardKind kind) { m_kind = kind; }
    void setIcon(const QIcon &icon) { m_icon = icon; }
    void setDescription(const QString &description) { m_description = description; }
    void setDisplayName(const QString &displayName) { m_displayName = displayName; }
    void setCategory(const QString &category) { m_category = category; }
    void setDisplayCategory(const QString &displayCategory) { m_displayCategory = displayCategory; }
    void setDescriptionImage(const QString &descriptionImage) { m_descriptionImage = descriptionImage; }
    void setRequiredFeatures(const FeatureSet &featureSet) { m_requiredFeatures = featureSet; }
    void addRequiredFeature(const Feature &feature) { m_requiredFeatures |= feature; }
    void setFlags(WizardFlags flags) { m_flags = flags; }
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    QString runPath(const QString &defaultPath);

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    // Does bookkeeping and the calls runWizardImpl. Please implement that.
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    virtual Utils::Wizard *runWizard(const QString &path, QWidget *parent, const QString &platform,
                                     const QVariantMap &variables);
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    virtual bool isAvailable(const QString &platformName) const;
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    QStringList supportedPlatforms() const;
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    typedef std::function<QList<IWizardFactory *>()> FactoryCreator;
    static void registerFactoryCreator(const FactoryCreator &creator);

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    // Utility to find all registered wizards
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    static QList<IWizardFactory*> allWizardFactories();
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    // Utility to find all registered wizards of a certain kind
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    static QList<IWizardFactory*> wizardFactoriesOfKind(WizardKind kind);
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    static QStringList allAvailablePlatforms();
    static QString displayNameForPlatform(const QString &string);
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    static void registerFeatureProvider(IFeatureProvider *provider);

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    static bool isWizardRunning();

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protected:
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    FeatureSet pluginFeatures() const;
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    FeatureSet availableFeatures(const QString &platformName) const;
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    virtual Utils::Wizard *runWizardImpl(const QString &path, QWidget *parent, const QString &platform,
                                         const QVariantMap &variables) = 0;
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private:
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    static void initialize();
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    static void destroyFeatureProvider();

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    static void clearWizardFactories();
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    static void updateActions();
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    QAction *m_action = 0;
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    IWizardFactory::WizardKind m_kind;
    QIcon m_icon;
    QString m_description;
    QString m_displayName;
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    Id m_id;
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    QString m_category;
    QString m_displayCategory;
    FeatureSet m_requiredFeatures;
    WizardFlags m_flags;
    QString m_descriptionImage;
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    friend class Internal::CorePlugin;
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};
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} // namespace Core

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Q_DECLARE_OPERATORS_FOR_FLAGS(Core::IWizardFactory::WizardFlags)
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#endif // IWIZARDFACTORY_H