diff options
| -rw-r--r-- | src/printsupport/kernel/qplatformprintplugin.cpp | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/src/printsupport/kernel/qplatformprintplugin.cpp b/src/printsupport/kernel/qplatformprintplugin.cpp index 9bc4b61829..a80f369040 100644 --- a/src/printsupport/kernel/qplatformprintplugin.cpp +++ b/src/printsupport/kernel/qplatformprintplugin.cpp @@ -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); } |