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Add support for selecting the printer plugin via the env var

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Task-number: QTBUG-57260
Change-Id: I046c8ce5af242cdc7efd23468bbe670d782bdfc0
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Andy Shaw <andy.shaw@qt.io>
This commit is contained in:
Andrew Hayzen 2016-11-22 11:55:50 +00:00
parent e51173a2b2
commit 4aebbef8ab
1 changed files with 12 additions and 2 deletions
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14
src/printsupport/kernel/qplatformprintplugin.cpp
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@ -42,6 +42,7 @@
#include "qprinterinfo.h"
#include "private/qfactoryloader_p.h"
#include <qcoreapplication.h>
#include <qdebug.h>
#ifndef QT_NO_PRINTER
@ -79,8 +80,17 @@ QPlatformPrinterSupport *QPlatformPrinterSupportPlugin::get()
{
if (!printerSupport) {
const QMultiMap<int, QString> keyMap = loader()->keyMap();
if (!keyMap.isEmpty())
printerSupport = qLoadPlugin<QPlatformPrinterSupport, QPlatformPrinterSupportPlugin>(loader(), keyMap.constBegin().value());
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);
}