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/*******************************************************************************
* Copyright (C) 2008 by Konstantin Heil <konst.heil@stud.uni-heidelberg.de> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
*******************************************************************************/
#ifndef TOOLTIPMANAGER_H
#define TOOLTIPMANAGER_H
#include <QtCore/QObject>
#include <QtCore/QModelIndex>
class QLayout;
class QAbstractItemView;
/**
* @brief Manages the tooltips for an item view.
*
* When hovering an item, a tooltip is shown after
* a short timeout. The tooltip is hidden again when the
* viewport is hovered or the item view has been left.
*/
class ToolTipManager : public QObject
{
Q_OBJECT
public:
/**
* Standard constructor. The ToolTipManager will start handling ToolTip events on the provided
* view immediately.
*
* @param parent The view which will have the tooltips displayed for.
*/
explicit ToolTipManager(QAbstractItemView* parent);
virtual ~ToolTipManager();
public Q_SLOTS:
/**
* Hides the currently shown tooltip. Invoking this method is
* only needed when the tooltip should be hidden although
* an item is hovered.
*/
void hideToolTip();
protected:
/**
* Please see the Qt documentation for more details.
*
* @param watched The object that was being watched.
* @param event The event object.
* @returns true if the event was handled in this filter, or false if it was not.
*/
virtual bool eventFilter( QObject* watched, QEvent* event );
private Q_SLOTS:
void prepareToolTip();
void requestToolTip(const QModelIndex& index);
private:
void showToolTip( const QModelIndex& menuItem );
QWidget * createTipContent( const QModelIndex& item );
QLayout * generateToolTipLine( const QModelIndex& item, QWidget * toolTip, const QSize& iconSize, bool comment );
class Private;
ToolTipManager::Private* d;
};
#endif
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