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tabordereditor.h

/****************************************************************************
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** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
**
** This file is part of the Qt Designer of the Qt Toolkit.
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** License versions 2.0 or 3.0 as published by the Free Software
** Foundation and appearing in the files LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file.  Alternatively you may (at
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#ifndef TABORDEREDITOR_H
#define TABORDEREDITOR_H

#include "tabordereditor_global.h"

#include <QtCore/QPointer>
#include <QtGui/QWidget>
#include <QtGui/QRegion>
#include <QtGui/QFont>
#include <QtGui/QFontMetrics>

class QUndoStack;
class QDesignerFormWindowInterface;

namespace qdesigner_internal {

class QT_TABORDEREDITOR_EXPORT TabOrderEditor : public QWidget
{
    Q_OBJECT

public:
    TabOrderEditor(QDesignerFormWindowInterface *form, QWidget *parent);

    QDesignerFormWindowInterface *formWindow() const;

public slots:
    void setBackground(QWidget *background);
    void updateBackground();
    void widgetRemoved(QWidget*);
    void initTabOrder();

protected:
    virtual void paintEvent(QPaintEvent *e);
    virtual void mouseMoveEvent(QMouseEvent *e);
    virtual void mousePressEvent(QMouseEvent *e);
    virtual void mouseDoubleClickEvent(QMouseEvent *e);
    virtual void contextMenuEvent(QContextMenuEvent *e);
    virtual void resizeEvent(QResizeEvent *e);
    virtual void showEvent(QShowEvent *e);

private:
    QRect indicatorRect(int index) const;
    int widgetIndexAt(const QPoint &pos) const;
    bool skipWidget(QWidget *w) const;

    QPointer<QDesignerFormWindowInterface> m_form_window;

    QList<QWidget*> m_tab_order_list;

    QWidget *m_bg_widget;
    QUndoStack *m_undo_stack;
    QRegion m_indicator_region;

    QFontMetrics m_font_metrics;
    int m_current_index;
    bool m_beginning;
};

}  // namespace qdesigner_internal

#endif

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