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/****************************************************************************
**
** Copyright (C) 2022 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
******************************************************************************/
#include "qplatformprintplugin.h"
#include "qplatformprintersupport.h"
#include "qprinterinfo.h"
#include "private/qfactoryloader_p.h"
#include <qcoreapplication.h>
#include <qdebug.h>
#ifndef QT_NO_PRINTER
QT_BEGIN_NAMESPACE
#if defined(Q_OS_MACOS)
Q_IMPORT_PLUGIN(QCocoaPrinterSupportPlugin)
#elif defined(Q_OS_WIN)
Q_IMPORT_PLUGIN(QWindowsPrinterSupportPlugin)
#endif
Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader,
(QPlatformPrinterSupportFactoryInterface_iid, QLatin1String("/printsupport"), Qt::CaseInsensitive))
QPlatformPrinterSupportPlugin::QPlatformPrinterSupportPlugin(QObject *parent)
: QObject(parent)
{
}
QPlatformPrinterSupportPlugin::~QPlatformPrinterSupportPlugin()
{
}
static QPlatformPrinterSupport *printerSupport = nullptr;
static void cleanupPrinterSupport()
{
delete printerSupport;
printerSupport = nullptr;
}
/*!
\internal
Returns a lazily-initialized singleton. Ownership is granted to the
QPlatformPrinterSupportPlugin, which is never unloaded or destroyed until
application exit, i.e. you can expect this pointer to always be valid and
multiple calls to this function will always return the same pointer.
*/
QPlatformPrinterSupport *QPlatformPrinterSupportPlugin::get()
{
if (!printerSupport) {
const QMultiMap<int, QString> keyMap = loader()->keyMap();
QMultiMap<int, QString>::const_iterator it = keyMap.cbegin();
if (!qEnvironmentVariableIsEmpty("QT_PRINTER_MODULE")) {
QString module = QString::fromLocal8Bit(qgetenv("QT_PRINTER_MODULE"));
QMultiMap<int, QString>::const_iterator it2 = std::find_if(keyMap.cbegin(), keyMap.cend(), [module](const QString &value){ return value == module; });
if (it2 == keyMap.cend())
qWarning() << "Unable to load printer plugin" << module;
else
it = it2;
}
if (it != keyMap.cend())
printerSupport = qLoadPlugin<QPlatformPrinterSupport, QPlatformPrinterSupportPlugin>(loader(), it.value());
if (printerSupport)
qAddPostRoutine(cleanupPrinterSupport);
}
return printerSupport;
}
QT_END_NAMESPACE
#include "moc_qplatformprintplugin.cpp"
#endif
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