Issue #123: Blend2D painting implementation

Pdf4QtLibCore/sources/pdfblpainter.h

@@ -0,0 +1,49 @@
+//    Copyright (C) 2024 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 PDFBLPAINTER_H
+#define PDFBLPAINTER_H
+
+#include "pdfglobal.h"
+
+#include <QImage>
+#include <QPaintDevice>
+
+namespace pdf
+{
+class PDFBLPaintEngine;
+
+class PDF4QTLIBCORESHARED_EXPORT PDFBLPaintDevice : public QPaintDevice
+{
+public:
+    PDFBLPaintDevice(QImage& offscreenBuffer, bool isMultithreaded);
+    virtual ~PDFBLPaintDevice() override;
+
+    virtual int devType() const override;
+    virtual QPaintEngine* paintEngine() const override;
+
+protected:
+    virtual int metric(PaintDeviceMetric metric) const override;
+
+private:
+    QImage& m_offscreenBuffer;
+    PDFBLPaintEngine* m_paintEngine;
+};
+
+}   // namespace pdf
+
+#endif // PDFBLPAINTER_H