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+/* This file is part of the KDE libraries
+ Copyright (C) 2003 Stephan Binner <binner@kde.org>
+ Copyright (C) 2003 Zack Rusin <zack@kde.org>
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License as published by the Free Software Foundation; either
+ version 2 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public License
+ along with this library; see the file COPYING.LIB. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+*/
+
+#ifndef KTABWIDGET_H
+#define KTABWIDGET_H
+
+#include <qtabwidget.h>
+#include <qstringlist.h>
+
+#include <kdelibs_export.h>
+
+class KTabWidgetPrivate;
+
+/**
+ * \brief A widget containing multiple tabs
+ *
+ * @since 3.2
+ */
+class KDEUI_EXPORT KTabWidget : public QTabWidget
+{
+ Q_OBJECT
+ Q_PROPERTY( bool tabReorderingEnabled READ isTabReorderingEnabled WRITE setTabReorderingEnabled )
+ Q_PROPERTY( bool hoverCloseButton READ hoverCloseButton WRITE setHoverCloseButton )
+ Q_PROPERTY( bool hoverCloseButtonDelayed READ hoverCloseButtonDelayed WRITE setHoverCloseButtonDelayed )
+ Q_PROPERTY( bool tabCloseActivatePrevious READ tabCloseActivatePrevious WRITE setTabCloseActivatePrevious )
+ Q_PROPERTY( bool automaticResizeTabs READ automaticResizeTabs WRITE setAutomaticResizeTabs )
+
+public:
+ KTabWidget( QWidget *parent = 0, const char *name = 0, WFlags f = 0 );
+ /**
+ * Destructor.
+ */
+ virtual ~KTabWidget();
+ /*!
+ Set the tab of the given widget to \a color.
+ */
+ void setTabColor( QWidget *, const QColor& color );
+ QColor tabColor( QWidget * ) const;
+
+ /*!
+ Returns true if tab ordering with the middle mouse button
+ has been enabled.
+ */
+ bool isTabReorderingEnabled() const;
+
+ /*!
+ Returns true if the close button is shown on tabs
+ when mouse is hovering over them.
+ */
+ bool hoverCloseButton() const;
+
+ /*!
+ Returns true if the close button is shown on tabs
+ after a delay.
+ */
+ bool hoverCloseButtonDelayed() const;
+
+ /*!
+ Returns true if closing the current tab activates the previous
+ actice tab instead of the one to the right.
+ @since 3.3
+ */
+ bool tabCloseActivatePrevious() const;
+
+ /*!
+ Returns true if calling setTitle() will resize tabs
+ to the width of the tab bar.
+ @since 3.4
+ */
+ bool automaticResizeTabs() const;
+
+ /*!
+ If \a hide is true, the tabbar is hidden along with any corner
+ widgets.
+ @since 3.4
+ */
+ void setTabBarHidden( bool hide );
+
+ /*!
+ Return true if the tabbar is hidden.
+ @since 3.4
+ */
+ bool isTabBarHidden() const;
+
+ /*!
+ Reimplemented for internal reasons.
+ */
+ virtual void insertTab( QWidget *, const QString &, int index = -1 );
+
+ /*!
+ Reimplemented for internal reasons.
+ */
+ virtual void insertTab( QWidget *child, const QIconSet& iconset,
+ const QString &label, int index = -1 );
+ /*!
+ Reimplemented for internal reasons.
+ */
+ virtual void insertTab( QWidget *, QTab *, int index = -1 );
+
+ /*!
+ Reimplemented for internal reasons.
+ */
+ void changeTab( QWidget *, const QString & );
+
+ /*!
+ Reimplemented for internal reasons.
+ */
+ void changeTab( QWidget *child, const QIconSet& iconset, const QString &label );
+
+ /*!
+ Reimplemented for internal reasons.
+ */
+ QString label( int ) const;
+
+ /*!
+ Reimplemented for internal reasons.
+ */
+ QString tabLabel( QWidget * ) const;
+
+ /*!
+ Reimplemented for internal reasons.
+ */
+ void setTabLabel( QWidget *, const QString & );
+
+public slots:
+ /*!
+ Move a widget's tab from first to second specified index and emit
+ signal movedTab( int, int ) afterwards.
+ */
+ virtual void moveTab( int, int );
+
+ /*!
+ Removes the widget, reimplemented for
+ internal reasons (keeping labels in sync).
+ */
+ virtual void removePage ( QWidget * w );
+
+ /*!
+ If \a enable is true, tab reordering with middle button will be enabled.
+
+ Note that once enabled you shouldn't rely on previously queried
+ currentPageIndex() or indexOf( QWidget * ) values anymore.
+
+ You can connect to signal movedTab(int, int) which will notify
+ you from which index to which index a tab has been moved.
+ */
+ void setTabReorderingEnabled( bool enable );
+
+ /*!
+ If \a enable is true, a close button will be shown on mouse hover
+ over tab icons which will emit signal closeRequest( QWidget * )
+ when pressed.
+ */
+ void setHoverCloseButton( bool enable );
+
+ /*!
+ If \a delayed is true, a close button will be shown on mouse hover
+ over tab icons after mouse double click delay else immediately.
+ */
+ void setHoverCloseButtonDelayed( bool delayed );
+
+ /*!
+ If \a delayed is true, closing the current tab activates the
+ previous active tab instead of the one to the right.
+ @since 3.3
+ */
+ void setTabCloseActivatePrevious( bool previous );
+
+ /*!
+ If \a enable is true, tabs will be resized to the width of the tab bar.
+
+ Does not work reliable with "QTabWidget* foo=new KTabWidget()" and if
+ you change tabs via the tabbar or by accessing tabs directly.
+ @since 3.4
+ */
+ void setAutomaticResizeTabs( bool enable );
+
+signals:
+ /*!
+ Connect to this and set accept to true if you can and want to decode the event.
+ */
+ void testCanDecode(const QDragMoveEvent *e, bool &accept /* result */);
+
+ /*!
+ Received an event in the empty space beside tabbar. Usually creates a new tab.
+ This signal is only possible after testCanDecode and positive accept result.
+ */
+ void receivedDropEvent( QDropEvent * );
+
+ /*!
+ Received an drop event on given widget's tab.
+ This signal is only possible after testCanDecode and positive accept result.
+ */
+ void receivedDropEvent( QWidget *, QDropEvent * );
+
+ /*!
+ Request to start a drag operation on the given tab.
+ */
+ void initiateDrag( QWidget * );
+
+ /*!
+ The right mouse button was pressed over empty space besides tabbar.
+ */
+ void contextMenu( const QPoint & );
+
+ /*!
+ The right mouse button was pressed over a widget.
+ */
+ void contextMenu( QWidget *, const QPoint & );
+
+ /*!
+ A tab was moved from first to second index. This signal is only
+ possible after you have called setTabReorderingEnabled( true ).
+ */
+ void movedTab( int, int );
+
+ /*!
+ A double left mouse button click was performed over empty space besides tabbar.
+ @since 3.3
+ */
+ void mouseDoubleClick();
+
+ /*!
+ A double left mouse button click was performed over the widget.
+ */
+ void mouseDoubleClick( QWidget * );
+
+ /*!
+ A middle mouse button click was performed over empty space besides tabbar.
+ */
+ void mouseMiddleClick();
+
+ /*!
+ A middle mouse button click was performed over the widget.
+ */
+ void mouseMiddleClick( QWidget * );
+
+ /*!
+ The close button of a widget's tab was clicked. This signal is
+ only possible after you have called setHoverCloseButton( true ).
+ */
+ void closeRequest( QWidget * );
+
+protected:
+ virtual void mouseDoubleClickEvent( QMouseEvent *e );
+ virtual void mousePressEvent( QMouseEvent * );
+ virtual void dragMoveEvent( QDragMoveEvent * );
+ virtual void dropEvent( QDropEvent * );
+ unsigned int tabBarWidthForMaxChars( uint maxLength );
+#ifndef QT_NO_WHEELEVENT
+ virtual void wheelEvent( QWheelEvent *e );
+#endif
+ virtual void resizeEvent( QResizeEvent * );
+
+protected slots:
+ virtual void receivedDropEvent( int, QDropEvent * );
+ virtual void initiateDrag( int );
+ virtual void contextMenu( int, const QPoint & );
+ virtual void mouseDoubleClick( int );
+ virtual void mouseMiddleClick( int );
+ virtual void closeRequest( int );
+#ifndef QT_NO_WHEELEVENT
+ virtual void wheelDelta( int );
+#endif
+
+private:
+ bool isEmptyTabbarSpace( const QPoint & ) const;
+ void resizeTabs( int changedTabIndex = -1 );
+ void updateTab( int index );
+
+ KTabWidgetPrivate *d;
+};
+
+#endif