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https://github.com/crystalidea/qt6windows7.git
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52 lines
1.3 KiB
C++
52 lines
1.3 KiB
C++
// Copyright (C) 2016 Kai Pastor
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
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#include <QApplication>
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#include <QFileDialog>
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#include <QPainter>
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#include <QPainterPath>
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#include <QPdfWriter>
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int main(int argc, char *argv[])
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{
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QApplication a(argc, argv);
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QString filepath = QFileDialog::getSaveFileName(nullptr, "Save File", "",
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"PDF files (*.pdf)");
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if (filepath.isEmpty())
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return 1;
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QPdfWriter writer(filepath);
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writer.setPageSize(QPageSize(QPageSize::A4));
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writer.setResolution(300);
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QPainterPath path;
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path.moveTo(0,0);
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path.lineTo(1000,0);
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path.lineTo(1000,1000);
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path.lineTo(0,800);
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path.lineTo(500,100);
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path.lineTo(800,900);
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path.lineTo(300,600);
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QPen pen;
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pen.setWidth(30);
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pen.setJoinStyle(Qt::MiterJoin);
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// The black path on the first page must always be visible in the PDF viewer.
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QPainter p(&writer);
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pen.setMiterLimit(6.0);
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p.setPen(pen);
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p.drawPath(path);
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// If a miter limit below 1.0 is written to the PDF,
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// broken PDF viewers may not show the red path on the second page.
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writer.newPage();
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pen.setMiterLimit(0.6);
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pen.setColor(Qt::red);
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p.setPen(pen);
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p.drawPath(path);
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p.end();
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return 0;
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}
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