PDF4QT/Pdf4QtLib/sources/pdfpainterutils.h

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1.8 KiB
C++

// Copyright (C) 2020-2021 Jakub Melka
//
// This file is part of PDF4QT.
//
// PDF4QT is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// with the written consent of the copyright owner, any later version.
//
// PDF4QT 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with PDF4QT. If not, see <https://www.gnu.org/licenses/>.
#ifndef PDFPAINTERUTILS_H
#define PDFPAINTERUTILS_H
#include "pdfglobal.h"
#include <QPainter>
namespace pdf
{
/// RAII wrapper for painter save/restore
class PDFPainterStateGuard
{
public:
explicit inline PDFPainterStateGuard(QPainter* painter) :
m_painter(painter)
{
m_painter->save();
}
inline ~PDFPainterStateGuard()
{
m_painter->restore();
}
private:
QPainter* m_painter;
};
class PDF4QTLIBSHARED_EXPORT PDFPainterHelper
{
public:
/// Draws bubble using painter. Bubble is aligned to the point, colored with color
/// and inside bubble, text is being paint. Bubble bounding box is being returned.
/// \param painter Painter
/// \param point Position of the bubble
/// \param color Color of the bubble
/// \param text Text inside the bubble
/// \param alignment Bubble alignment relative to the bubble position point
static QRect drawBubble(QPainter* painter, QPoint point, QColor color, QString text, Qt::Alignment alignment);
};
} // namespace pdf
#endif // PDFPAINTERUTILS_H