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** contained in the Technology Preview License Agreement accompanying

** this package.

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** General Public License version 2.1 as published by the Free Software

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****************************************************************************/

//

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt API.  It exists for the convenience

// of Qt Designer.  This header

// file may change from version to version without notice, or even be removed.

//

// We mean it.

//

#ifndef _SIGNALSLOTDIALOG_H

#define _SIGNALSLOTDIALOG_H

#include "shared_global_p.h"

#include <QtCore/QStringList>

#include <QtGui/QDialog>

#include <QtGui/QStandardItemModel>

QT_BEGIN_NAMESPACE

class QDesignerFormEditorInterface;

class QDesignerFormWindowInterface;

class QDesignerDialogGuiInterface;

class QDesignerMemberSheet;

class QListView;

class QToolButton;

class QItemSelection;

namespace Ui {

    class SignalSlotDialogClass;

}

namespace qdesigner_internal {

// Dialog data

struct SignalSlotDialogData {

    void clear();

    QStringList m_existingMethods;

    QStringList m_fakeMethods;

};

// Internal helper class: A model for signatures that allows for verifying duplicates

// (checking signals versus slots and vice versa).

class SignatureModel : public QStandardItemModel {

    Q_OBJECT

public:

    SignatureModel(QObject *parent = 0);

    virtual bool setData (const QModelIndex &index, const QVariant &value, int role = Qt::EditRole);

signals:

    void checkSignature(const QString &signature, bool *ok);

};

// Internal helper class: Panel for editing method signatures. List view with validator,

// add and remove button

class SignaturePanel  : public QObject {

     Q_OBJECT

public:

    SignaturePanel(QObject *parent, QListView *listView, QToolButton *addButton, QToolButton *removeButton, const QString &newPrefix);

    QStringList fakeMethods() const;

    void setData(const SignalSlotDialogData &d);

    int count(const QString &signature) const;

signals:

    void checkSignature(const QString &signature, bool *ok);

private slots:

    void slotAdd();

    void slotRemove();

    void slotSelectionChanged(const QItemSelection &, const QItemSelection &);

private:

    void closeEditor();

    const QString m_newPrefix;

    SignatureModel *m_model;

    QListView *m_listView;

    QToolButton *m_removeButton;

};

// Dialog for  editing signals and slots.

// Provides static convenience function

// to modify fake signals and slots. They are

// handled in 2 ways:

// 1) For the MainContainer: Fake signals and slots are stored

//    in the meta database (per-instance)

// 2) For promoted widgets: Fake signals and slots are stored

//    in the widget database (per-class)

// Arguably, we could require the MainContainer to be promoted for that, too,

// but that would require entering a header.

class QDESIGNER_SHARED_EXPORT SignalSlotDialog : public QDialog {

    Q_OBJECT

public:

    enum FocusMode { FocusSlots, FocusSignals };

    explicit SignalSlotDialog(QDesignerDialogGuiInterface *dialogGui, QWidget *parent = 0, FocusMode m = FocusSlots);

    virtual ~SignalSlotDialog();

    DialogCode showDialog(SignalSlotDialogData &slotData, SignalSlotDialogData &signalData);

    // Edit fake methods stored in MetaDataBase (per instance, used for main containers)

    static bool editMetaDataBase(QDesignerFormWindowInterface *fw, QObject *object, QWidget *parent = 0, FocusMode m = FocusSlots);

    // Edit fake methods of a promoted class stored in WidgetDataBase (synthesizes a widget to obtain existing members).

    static bool editPromotedClass(QDesignerFormEditorInterface *core, const QString &promotedClassName, QWidget *parent = 0, FocusMode m = FocusSlots);

    // Edit fake methods of a promoted class stored in WidgetDataBase on a base class instance.

    static bool editPromotedClass(QDesignerFormEditorInterface *core, QObject *baseObject, QWidget *parent = 0, FocusMode m = FocusSlots);

private slots:

    void slotCheckSignature(const QString &signature, bool *ok);

private:

    // Edit fake methods of a promoted class stored in WidgetDataBase using an instance of the base class.

    static bool editPromotedClass(QDesignerFormEditorInterface *core, const QString &promotedClassName, QObject *baseObject, QWidget *parent, FocusMode m);

    const FocusMode m_focusMode;

    Ui::SignalSlotDialogClass *m_ui;

    QDesignerDialogGuiInterface *m_dialogGui;

    SignaturePanel *m_slotPanel;

    SignaturePanel *m_signalPanel;

};

}

QT_END_NAMESPACE

#endif