2016-01-21 13:32:27 +03:00
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/*
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* Copyright (C) by Christian Kamm <mail@ckamm.de>
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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 General Public License as published by
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2016-10-25 12:00:07 +03:00
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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2016-01-21 13:32:27 +03:00
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#include <QObject>
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#include <QPoint>
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class QTreeView;
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2016-03-30 10:21:28 +03:00
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class QModelIndex;
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2016-01-21 13:32:27 +03:00
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namespace OCC {
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/**
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* @brief Updates tooltips of items in a QTreeView when they change.
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* @ingroup gui
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*
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* Usually tooltips are not updated as they change. Since we want to
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* use tooltips to show rapidly updating progress information, we
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* need to make sure that that information is displayed to the user
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* as it changes.
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*
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* To accomplish that, the eventFilter() stores the tooltip's position
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* and the dataChanged() slot updates the tooltip if Qt::ToolTipRole
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* gets updated while a tooltip is shown.
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*/
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class ToolTipUpdater : public QObject
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{
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Q_OBJECT
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public:
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ToolTipUpdater(QTreeView *treeView);
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protected:
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bool eventFilter(QObject *obj, QEvent *ev) Q_DECL_OVERRIDE;
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private slots:
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void dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight, const QVector<int> &roles);
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private:
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QTreeView *_treeView;
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QPoint _toolTipPos;
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};
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} // namespace OCC
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