/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** 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
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** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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****************************************************************************/

#ifndef COMMAND_H
#define COMMAND_H

#include <coreplugin/core_global.h>
#include <coreplugin/id.h>

#include <QObject>

QT_BEGIN_NAMESPACE
class QAction;
class QShortcut;
class QKeySequence;
QT_END_NAMESPACE


namespace Core {

class Context;

#ifdef Q_OS_MAC
enum { UseMacShortcuts = 1 };
#else
enum { UseMacShortcuts = 0 };
#endif

class CORE_EXPORT Command : public QObject
{
    Q_OBJECT
public:
    enum CommandAttribute {
        CA_Hide = 1,
        CA_UpdateText = 2,
        CA_UpdateIcon = 4,
        CA_NonConfigurable = 8
    };
    Q_DECLARE_FLAGS(CommandAttributes, CommandAttribute)

    virtual void setDefaultKeySequence(const QKeySequence &key) = 0;
    virtual QKeySequence defaultKeySequence() const = 0;
    virtual QKeySequence keySequence() const = 0;
    // explicitly set the description (used e.g. in shortcut settings)
    // default is to use the action text for actions, or the whatsThis for shortcuts,
    // or, as a last fall back if these are empty, the command ID string
    // override the default e.g. if the text is context dependent and contains file names etc
    virtual void setDescription(const QString &text) = 0;
    virtual QString description() const = 0;

    virtual Id id() const = 0;

    virtual QAction *action() const = 0;
    virtual QShortcut *shortcut() const = 0;
    virtual Context context() const = 0;

    virtual void setAttribute(CommandAttribute attr) = 0;
    virtual void removeAttribute(CommandAttribute attr) = 0;
    virtual bool hasAttribute(CommandAttribute attr) const = 0;

    virtual bool isActive() const = 0;

    virtual void setKeySequence(const QKeySequence &key) = 0;
    virtual QString stringWithAppendedShortcut(const QString &str) const = 0;

    virtual bool isScriptable() const = 0;
    virtual bool isScriptable(const Context &) const = 0;

signals:
    void keySequenceChanged();
    void activeStateChanged();
};

} // namespace Core

Q_DECLARE_OPERATORS_FOR_FLAGS(Core::Command::CommandAttributes)

#endif // COMMAND_H
