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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the Qt Designer of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef BUTTON_TASKMENU_H
+#define BUTTON_TASKMENU_H
+
+#include <QtGui/QAbstractButton>
+#include <QtGui/QCommandLinkButton>
+#include <QtGui/QButtonGroup>
+
+#include <qdesigner_taskmenu_p.h>
+#include <extensionfactory_p.h>
+
+QT_BEGIN_NAMESPACE
+
+class QMenu;
+class QActionGroup;
+class QDesignerFormWindowCursorInterface;
+
+namespace qdesigner_internal {
+
+// ButtonGroupMenu: Mixin menu for the 'select members'/'break group' options of
+// the task menu of buttons and button group
+class ButtonGroupMenu : public QObject
+{
+    Q_OBJECT
+    Q_DISABLE_COPY(ButtonGroupMenu)
+public:
+    ButtonGroupMenu(QObject *parent = 0);
+
+    void initialize(QDesignerFormWindowInterface *formWindow,
+                    QButtonGroup *buttonGroup = 0,
+                    /* Current button for selection in ButtonMode */
+                    QAbstractButton *currentButton = 0);
+
+    QAction *selectGroupAction() const { return m_selectGroupAction; }
+    QAction *breakGroupAction() const  { return m_breakGroupAction; }
+
+private slots:
+    void selectGroup();
+    void breakGroup();
+
+private:
+    QAction *m_selectGroupAction;
+    QAction *m_breakGroupAction;
+
+    QDesignerFormWindowInterface *m_formWindow;
+    QButtonGroup *m_buttonGroup;
+    QAbstractButton *m_currentButton;
+};
+
+// Task menu extension of a QButtonGroup
+class ButtonGroupTaskMenu : public QObject, public QDesignerTaskMenuExtension
+{
+    Q_OBJECT
+    Q_DISABLE_COPY(ButtonGroupTaskMenu)
+    Q_INTERFACES(QDesignerTaskMenuExtension)
+public:
+    explicit ButtonGroupTaskMenu(QButtonGroup *buttonGroup, QObject *parent = 0);
+
+    virtual QAction *preferredEditAction() const;
+    virtual QList<QAction*> taskActions() const;
+
+private:
+    QButtonGroup *m_buttonGroup;
+    QList<QAction*> m_taskActions;
+    mutable ButtonGroupMenu m_menu;
+};
+
+// Task menu extension of a QAbstractButton
+class ButtonTaskMenu: public QDesignerTaskMenu
+{
+    Q_OBJECT
+    Q_DISABLE_COPY(ButtonTaskMenu)
+public:
+    explicit ButtonTaskMenu(QAbstractButton *button, QObject *parent = 0);
+    virtual ~ButtonTaskMenu();
+
+    virtual QAction *preferredEditAction() const;
+    virtual QList<QAction*> taskActions() const;
+
+    QAbstractButton *button() const;
+
+protected:
+    void insertAction(int index, QAction *a);
+
+private slots:
+    void createGroup();
+    void addToGroup(QAction *a);
+    void removeFromGroup();
+
+private:
+    enum SelectionType {
+        OtherSelection,
+        UngroupedButtonSelection,
+        GroupedButtonSelection
+    };
+
+    SelectionType selectionType(const QDesignerFormWindowCursorInterface *cursor, QButtonGroup ** ptrToGroup = 0) const;
+    bool refreshAssignMenu(const QDesignerFormWindowInterface *fw, int buttonCount, SelectionType st, QButtonGroup *currentGroup);
+    QMenu *createGroupSelectionMenu(const QDesignerFormWindowInterface *fw);
+
+    QList<QAction*> m_taskActions;
+    mutable ButtonGroupMenu m_groupMenu;
+    QMenu *m_assignGroupSubMenu;
+    QActionGroup *m_assignActionGroup;
+    QAction *m_assignToGroupSubMenuAction;
+    QMenu *m_currentGroupSubMenu;
+    QAction *m_currentGroupSubMenuAction;
+
+    QAction *m_createGroupAction;
+    QAction *m_preferredEditAction;
+    QAction *m_removeFromGroupAction;
+};
+
+// Task menu extension of a QCommandLinkButton
+class CommandLinkButtonTaskMenu: public ButtonTaskMenu
+{
+    Q_OBJECT
+    Q_DISABLE_COPY(CommandLinkButtonTaskMenu)
+public:
+    explicit CommandLinkButtonTaskMenu(QCommandLinkButton *button, QObject *parent = 0);
+};
+
+typedef ExtensionFactory<QDesignerTaskMenuExtension, QButtonGroup, ButtonGroupTaskMenu> ButtonGroupTaskMenuFactory;
+typedef ExtensionFactory<QDesignerTaskMenuExtension, QCommandLinkButton, CommandLinkButtonTaskMenu>  CommandLinkButtonTaskMenuFactory;
+typedef ExtensionFactory<QDesignerTaskMenuExtension, QAbstractButton, ButtonTaskMenu>  ButtonTaskMenuFactory;
+}  // namespace qdesigner_internal
+
+QT_END_NAMESPACE
+
+#endif // BUTTON_TASKMENU_H