mirror of https://github.com/JakubMelka/PDF4QT.git
82 lines
3.2 KiB
C++
82 lines
3.2 KiB
C++
// Copyright (C) 2019 Jakub Melka
|
|
//
|
|
// This file is part of PdfForQt.
|
|
//
|
|
// PdfForQt 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
|
|
// (at your option) any later version.
|
|
//
|
|
// PdfForQt 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 PDFForQt. If not, see <https://www.gnu.org/licenses/>.
|
|
|
|
#ifndef PDFPAINTER_H
|
|
#define PDFPAINTER_H
|
|
|
|
#include "pdfutils.h"
|
|
#include "pdfrenderer.h"
|
|
#include "pdfpagecontentprocessor.h"
|
|
|
|
#include <QPen>
|
|
#include <QBrush>
|
|
|
|
namespace pdf
|
|
{
|
|
|
|
/// Processor, which processes PDF's page commands on the QPainter. It works with QPainter
|
|
/// and with transformation matrix, which translates page points to the device points.
|
|
class PDFPainter : public PDFPageContentProcessor
|
|
{
|
|
public:
|
|
/// Constructs new PDFPainter object, with default parameters.
|
|
/// \param painter Painter, on which page content is drawn
|
|
/// \param features Features of the painter
|
|
/// \param pagePointToDevicePointMatrix Matrix, which translates page points to device points
|
|
/// \param page Page, which will be drawn
|
|
/// \param document Document owning the page
|
|
/// \param fontCache Font cache
|
|
explicit PDFPainter(QPainter* painter,
|
|
PDFRenderer::Features features,
|
|
QMatrix pagePointToDevicePointMatrix,
|
|
const PDFPage* page,
|
|
const PDFDocument* document,
|
|
const PDFFontCache* fontCache);
|
|
virtual ~PDFPainter() override;
|
|
|
|
protected:
|
|
virtual void performPathPainting(const QPainterPath& path, bool stroke, bool fill, bool text, Qt::FillRule fillRule) override;
|
|
virtual void performClipping(const QPainterPath& path, Qt::FillRule fillRule) override;
|
|
virtual void performImagePainting(const QImage& image);
|
|
virtual void performUpdateGraphicsState(const PDFPageContentProcessorState& state) override;
|
|
virtual void performSaveGraphicState(ProcessOrder order) override;
|
|
virtual void performRestoreGraphicState(ProcessOrder order) override;
|
|
|
|
private:
|
|
/// Returns current pen
|
|
const QPen& getCurrentPen() { return m_currentPen.get(this, &PDFPainter::getCurrentPenImpl); }
|
|
|
|
/// Returns current brush
|
|
const QBrush& getCurrentBrush() { return m_currentBrush.get(this, &PDFPainter::getCurrentBrushImpl); }
|
|
|
|
/// Returns current pen (implementation)
|
|
QPen getCurrentPenImpl() const;
|
|
|
|
/// Returns current brush (implementation)
|
|
QBrush getCurrentBrushImpl() const;
|
|
|
|
QPainter* m_painter;
|
|
PDFRenderer::Features m_features;
|
|
QMatrix m_pagePointToDevicePointMatrix;
|
|
PDFCachedItem<QPen> m_currentPen;
|
|
PDFCachedItem<QBrush> m_currentBrush;
|
|
};
|
|
|
|
} // namespace pdf
|
|
|
|
#endif // PDFPAINTER_H
|