8c2b7405b4
Miter limits below 1.0 are not valid in PDF and trigger an error in the Reader. This change enforces a minimum miter limit of 1.0, and it adds a manual test for producing a PDF file demonstrating this issue. Task-number: QTBUG-52641 Change-Id: I1c78b1c4a44579e95e1cddfb459926d304e60165 Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
88 lines
3.1 KiB
C++
88 lines
3.1 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 Kai Pastor
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the test suite of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of The Qt Company Ltd nor the names of its
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** contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QApplication>
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#include <QFileDialog>
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#include <QPainter>
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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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