mirror of
https://github.com/crystalidea/qt6windows7.git
synced 2024-11-30 07:46:51 +08:00
52 lines
1.3 KiB
C++
52 lines
1.3 KiB
C++
// Copyright (C) 2016 Kai Pastor
|
|
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
|
|
|
|
#include <QApplication>
|
|
#include <QFileDialog>
|
|
#include <QPainter>
|
|
#include <QPainterPath>
|
|
#include <QPdfWriter>
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
QApplication a(argc, argv);
|
|
|
|
QString filepath = QFileDialog::getSaveFileName(nullptr, "Save File", "",
|
|
"PDF files (*.pdf)");
|
|
if (filepath.isEmpty())
|
|
return 1;
|
|
QPdfWriter writer(filepath);
|
|
writer.setPageSize(QPageSize(QPageSize::A4));
|
|
writer.setResolution(300);
|
|
|
|
QPainterPath path;
|
|
path.moveTo(0,0);
|
|
path.lineTo(1000,0);
|
|
path.lineTo(1000,1000);
|
|
path.lineTo(0,800);
|
|
path.lineTo(500,100);
|
|
path.lineTo(800,900);
|
|
path.lineTo(300,600);
|
|
|
|
QPen pen;
|
|
pen.setWidth(30);
|
|
pen.setJoinStyle(Qt::MiterJoin);
|
|
|
|
// The black path on the first page must always be visible in the PDF viewer.
|
|
QPainter p(&writer);
|
|
pen.setMiterLimit(6.0);
|
|
p.setPen(pen);
|
|
p.drawPath(path);
|
|
|
|
// If a miter limit below 1.0 is written to the PDF,
|
|
// broken PDF viewers may not show the red path on the second page.
|
|
writer.newPage();
|
|
pen.setMiterLimit(0.6);
|
|
pen.setColor(Qt::red);
|
|
p.setPen(pen);
|
|
p.drawPath(path);
|
|
|
|
p.end();
|
|
return 0;
|
|
}
|