244 lines
6.9 KiB
C++
244 lines
6.9 KiB
C++
/*
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* Copyright 2008 Marco Martin <notmart@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Library General Public License as
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* published by the Free Software Foundation; either version 2, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef PLASMA_TABBAR_H
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#define PLASMA_TABBAR_H
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#include <QtGui/QGraphicsWidget>
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#include <ktabbar.h>
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#include <plasma/plasma_export.h>
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class QString;
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class QIcon;
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namespace Plasma
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{
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class TabBarPrivate;
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/**
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* @class TabBar plasma/widgets/tabbar.h <Plasma/Widgets/TabBar>
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*
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* @short A tab bar widget, to be used for tabbed interfaces.
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*
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* Provides a Tab bar for use in a tabbed interface where each page is a QGraphicsLayoutItem.
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* Only one of them is displayed at a given time. It is possible to add and remove tabs
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* or modify their text label or their icon.
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*/
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class PLASMA_EXPORT TabBar : public QGraphicsWidget
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{
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Q_OBJECT
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Q_PROPERTY(KTabBar *nativeWidget READ nativeWidget)
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Q_PROPERTY(int currentIndex READ currentIndex WRITE setCurrentIndex)
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Q_PROPERTY(int count READ count)
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Q_PROPERTY(QString styleSheet READ styleSheet WRITE setStyleSheet)
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Q_PROPERTY(bool tabBarShown READ isTabBarShown WRITE setTabBarShown)
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public:
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/**
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* Constructs a new TabBar
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*
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* @arg parent the parent of this widget
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*/
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explicit TabBar(QGraphicsWidget *parent = 0);
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~TabBar();
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/**
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* Adds a new tab in the desired position
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*
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* @arg index the position where to insert the new tab,
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* if index <=0 will be the first position,
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* if index >= count() will be the last
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* @arg icon the icon for this tab
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* @arg label the text label of the tab
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* @arg content the page content that will be shown by this tab
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* @return the index of the inserted tab
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*/
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Q_INVOKABLE int insertTab(int index, const QIcon &icon, const QString &label,
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QGraphicsLayoutItem *content = 0);
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/**
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* Adds a new tab in the desired position
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* This is an overloaded member provided for convenience
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* equivalent to insertTab(index, QIcon(), label);
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*
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* @arg index the position where to insert the new tab,
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* if index <=0 will be the first position,
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* if index >= count() will be the last
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* @arg label the text label of the tab
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* @arg content the page content that will be shown by this tab
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* @return the index of the inserted tab
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*/
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Q_INVOKABLE int insertTab(int index, const QString &label, QGraphicsLayoutItem *content = 0);
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/**
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* Adds a new tab in the last position
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*
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* @arg icon the icon for this tab
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* @arg label the text label of the tab
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* @arg content the page content that will be shown by this tab
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* @return the index of the inserted tab
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*/
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Q_INVOKABLE int addTab(const QIcon &icon, const QString &label, QGraphicsLayoutItem *content = 0);
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/**
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* Adds a new tab in the last position
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* This is an overloaded member provided for convenience
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* equivalent to addTab(QIcon(), label, page)
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*
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* @arg label the text label of the tab
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* @arg content the page content that will be shown by this tab
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* @return the index of the inserted tab
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*/
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Q_INVOKABLE int addTab(const QString &label, QGraphicsLayoutItem *content = 0);
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/**
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* Removes a tab, contents are deleted
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*
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* @arg index the index of the tab to remove
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*/
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Q_INVOKABLE void removeTab(int index);
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/**
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* Removes a tab, the page is reparented to 0 and is returned
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*
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* @arg index the index of the tab to remove
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* @since 4.4
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*/
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Q_INVOKABLE QGraphicsLayoutItem *takeTab(int index);
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/**
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* Returns the contents of a page
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*
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* @arg index the index of the tab to retrieve
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* @since 4.4
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*/
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Q_INVOKABLE QGraphicsLayoutItem *tabAt(int index);
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/**
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* @return the index of the tab currently active
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*/
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int currentIndex() const;
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/**
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* @return the number of tabs in this tabbar
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*/
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int count() const;
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/**
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* Sets the text label of the given tab
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*
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* @arg index the index of the tab to modify
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* @arg label the new text label of the given tab
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*/
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Q_INVOKABLE void setTabText(int index, const QString &label);
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/**
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* @return the text label of the given tab
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*
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* @arg index the index of the tab we want to know its label
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*/
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Q_INVOKABLE QString tabText(int index) const;
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/**
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* Sets an icon for a given tab
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*
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* @arg index the index of the tab to modify
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* @arg icon the new icon for the given tab
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*/
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Q_INVOKABLE void setTabIcon(int index, const QIcon &icon);
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/**
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* @return the current icon for a given tab
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*
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* @arg index the index of the tab we want to know its icon
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*/
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Q_INVOKABLE QIcon tabIcon(int index) const;
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/**
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* shows or hides the tabbar, used if you just want to display the
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* pages, when the tabbar doesn't have content pages at all this
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* function has no effect
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*
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* @arg show true if we want to show the tabbar
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* @since 4.3
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*/
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void setTabBarShown(bool show);
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/**
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* @return true if the tabbar is shown
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* @since 4.3
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*/
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bool isTabBarShown() const;
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/**
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* Sets the stylesheet used to control the visual display of this TabBar
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*
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* @arg stylesheet a CSS string
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*/
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void setStyleSheet(const QString &stylesheet);
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/**
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* @return the stylesheet currently used with this widget
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*/
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QString styleSheet() const;
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/**
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* @return the native widget wrapped by this TabBar
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*/
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KTabBar *nativeWidget() const;
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public Q_SLOTS:
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/**
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* Activate a given tab
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*
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* @arg index the index of the tab to activate
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*/
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void setCurrentIndex(int index);
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Q_SIGNALS:
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/**
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* Emitted when the active tab changes
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*
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* @arg index the newly activated tab
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*/
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void currentChanged(int index);
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protected:
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void wheelEvent(QGraphicsSceneWheelEvent *event);
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void resizeEvent(QGraphicsSceneResizeEvent * event);
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void changeEvent(QEvent *event);
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private:
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TabBarPrivate * const d;
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friend class TabBarPrivate;
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Q_PRIVATE_SLOT(d, void slidingCompleted(QGraphicsItem *item))
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Q_PRIVATE_SLOT(d, void shapeChanged(const QTabBar::Shape shape))
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Q_PRIVATE_SLOT(d, void setPalette())
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};
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} // namespace Plasma
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#endif // multiple inclusion guard
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