104 lines
3.1 KiB
C++
104 lines
3.1 KiB
C++
/*
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* Copyright 2009 by Rob Scheepmaker <r.scheepmaker@student.utwente.nl>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*/
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#ifndef PLASMA_EXTENDERGROUP_H
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#define PLASMA_EXTENDERGROUP_H
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#include <QtGui/QGraphicsWidget>
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#include <QtCore/QList>
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#include "extenderitem.h"
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#include "plasma/plasma_export.h"
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namespace Plasma
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{
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class ExtenderGroupPrivate;
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class ExtenderItem;
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class Applet;
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/**
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* @class ExtenderGroup plasma/extendergroup.h <Plasma/ExtenderGroup>
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*
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* @short Allows for grouping of extender items.
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*
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* To be able to group multiple items together, you'll need to instantiate an ExtenderGroup, and
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* call setGroup() on all extender items you wish to add to this group.
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* This ExtenderGroup is just the same as any other ExtenderItem, except for the expand group and
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* collapse group buttons it provides, and the fact that it will automatically hide itself if no
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* other items belong to this group and hideIfEmpty is set to true.
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*
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* @since 4.3
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*/
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class PLASMA_EXPORT ExtenderGroup : public ExtenderItem
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{
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Q_OBJECT
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Q_PROPERTY(bool hideIfEmpty READ hideIfEmpty WRITE setHideIfEmpty)
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public:
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/**
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* Creates a group.
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* @param applet The applet this group is part of. Null is not allowed here.
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*/
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explicit ExtenderGroup(Extender *parent, uint groupId = 0);
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~ExtenderGroup();
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/**
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* @return a list of items that belong to this group.
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*/
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QList<ExtenderItem*> items() const;
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/**
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* @return whether or not this item hides itself if no other items belong to this group.
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*/
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bool hideIfEmpty() const;
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/**
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* @param hideIfEmpty whether or not this item hides itself if no other items belong to this group.
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*/
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void setHideIfEmpty(bool hideIfEmpty);
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public Q_SLOTS:
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/**
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* Expands this group to show all ExtenderItems that are contained in this group.
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*/
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void expandGroup();
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/**
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* Collapses this group to hide all ExtenderItems that are contained in this group, and
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* shows the summary item.
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*/
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void collapseGroup();
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private:
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ExtenderGroupPrivate * const d;
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Q_PRIVATE_SLOT(d, void addItemToGroup(Plasma::ExtenderItem *item))
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Q_PRIVATE_SLOT(d, void removeItemFromGroup(Plasma::ExtenderItem *item))
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Q_PRIVATE_SLOT(d, void themeChanged())
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friend class ExtenderItem;
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};
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} // Plasma namespace
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#endif //PLASMA_EXTENDER_H
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