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/*
Copyright (c) 2006 Gábor Lehel <illissius@gmail.com>
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 KO_ITEM_TOOLTIP_H
#define KO_ITEM_TOOLTIP_H
#include <QFrame>
#include "kowidgets_export.h"
class QStyleOptionViewItem;
class QModelIndex;
class QTextDocument;
/**
* Base class for tooltips that can show extensive information about
* the contents of the data pointed to by something that contains a
* QModelIndex. Subclasses need to use this data to create a
* QTextDocument that is formatted to provide the complete tooltip.
*
* (KoItemToolTip is currently used in kopainter/KoResourceChooser)
*/
class KOWIDGETS_EXPORT KoItemToolTip : public QFrame
{
Q_OBJECT
public:
KoItemToolTip();
virtual ~KoItemToolTip();
void showTip(QWidget *widget, const QPoint &pos, const QStyleOptionViewItem &option, const QModelIndex &index);
protected:
/**
* Re-implement this to provide the actual tooltip contents.
* For instance:
* @code
* QTextDocument *doc = new QTextDocument(this);
*
* QImage thumb = index.data(KoResourceModel::LargeThumbnailRole).value<QImage>();
* doc->addResource(QTextDocument::ImageResource, QUrl("data:thumbnail"), thumb);
*
* QString name = index.data(Qt::DisplayRole).toString();
*
* const QString image = QString("<img src=\"data:thumbnail\">");
* const QString body = QString("<h3 align=\"center\">%1</h3>").arg(name) + image;
* const QString html = QString("<html><body>%1</body></html>").arg(body);
*
* doc->setHtml(html);
* doc->setTextWidth(qMin(doc->size().width(), 500.0));
*
* return doc;
* @endcode
*/
virtual QTextDocument *createDocument(const QModelIndex &index) = 0;
private:
class Private;
Private* const d;
void updatePosition(QWidget *widget, const QPoint &pos, const QStyleOptionViewItem &option);
public:
virtual QSize sizeHint() const;
protected:
virtual void paintEvent(QPaintEvent *e);
virtual void timerEvent(QTimerEvent *e);
virtual bool eventFilter(QObject *object, QEvent *event);
};
#endif
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