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**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
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** This file is part of Qt Creator.
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** Licensees holding valid commercial Qt licenses may use this file in
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****************************************************************************/

#ifndef TASKHUB_H
#define TASKHUB_H

#include "task.h"

#include <QObject>
#include <QIcon>

namespace ProjectExplorer {

class ProjectExplorerPlugin;

class PROJECTEXPLORER_EXPORT TaskHub : public QObject
{
    Q_OBJECT
public:
    static QObject *instance();

    // Convenience overload
    static void addTask(Task::TaskType type, const QString &description,
                        Core::Id category,
                        const Utils::FileName &file = Utils::FileName(),
                        int line = -1);

public slots:
    static void addTask(ProjectExplorer::Task task);
    static void clearTasks(Core::Id categoryId = Core::Id());
    static void removeTask(const ProjectExplorer::Task &task);

public:
    static void addCategory(Core::Id categoryId, const QString &displayName, bool visible = true);
    static void updateTaskFileName(unsigned int id, const QString &fileName);
    static void updateTaskLineNumber(unsigned int id, int line);
    static void taskMarkClicked(unsigned int id);
    static void showTaskInEditor(unsigned int id);
    static void setCategoryVisibility(Core::Id categoryId, bool visible);

    static void requestPopup();

signals:
    void categoryAdded(Core::Id categoryId, const QString &displayName, bool visible);
    void taskAdded(const ProjectExplorer::Task &task);
    void taskRemoved(const ProjectExplorer::Task &task);
    void tasksCleared(Core::Id categoryId);
    void taskFileNameUpdated(unsigned int id, const QString &fileName);
    void taskLineNumberUpdated(unsigned int id, int line);
    void categoryVisibilityChanged(Core::Id categoryId, bool visible);
    void popupRequested(int);
    void showTask(unsigned int id);
    void openTask(unsigned int id);

private:
    TaskHub();
    ~TaskHub();

    const QIcon m_errorIcon;
    const QIcon m_warningIcon;

    static QSet<Core::Id> m_registeredCategories;

    friend class ProjectExplorerPlugin;
};

} // namespace ProjectExplorer
#endif // TASKHUB_H