qt-creator/src/plugins/coreplugin/inavigationwidgetfactory.h

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#ifndef INAVIGATIONWIDGET_H
#define INAVIGATIONWIDGET_H

#include <coreplugin/core_global.h>
#include <QtCore/QObject>
#include <QtCore/QList>

QT_BEGIN_NAMESPACE
class QToolButton;
class QKeySequence;
class QWidget;
QT_END_NAMESPACE

namespace Core {

struct NavigationView
{
    QWidget *widget;
    QList<QToolButton *> dockToolBarWidgets;
};

class CORE_EXPORT INavigationWidgetFactory : public QObject
{
    Q_OBJECT
public:
    INavigationWidgetFactory();
    virtual ~INavigationWidgetFactory();

    virtual QString displayName() const = 0;
    virtual int priority() const = 0;
    virtual QString id() const = 0;
    virtual QKeySequence activationSequence() const;
    // This design is not optimal, think about it again once we need to extend it
    // It could be implemented as returning an object which has both the widget
    // and the docktoolbar widgets
    // Similar to how IView
    virtual NavigationView createWidget() = 0;

    // Read and store settings for the widget, created by this factory
    // and being at position position. (The position is important since
    // a certain type of widget could exist multiple times.)
    virtual void saveSettings(int position, QWidget *widget);
    virtual void restoreSettings(int position, QWidget *widget);
};

} // namespace Core

#endif // INAVIGATIONWIDGET_H