Do not build QQnxScreenEventThread when not needed

Change-Id: I07525ac45a610f56f2bc72731379073f4aa67f7b
Reviewed-by: Kevin Krammer <kevin.krammer@kdab.com>
Reviewed-by: Thomas McGuire <thomas.mcguire@kdab.com>
Reviewed-by: Rafael Roquetto <rafael.roquetto@kdab.com>

src/plugins/platforms/qnx/qnx.pro

@@ -11,11 +11,11 @@ QT += platformsupport platformsupport-private
 CONFIG(blackberry) {
     CONFIG += qqnx_pps
 
-    # Unomment this to enable screen event handling
-    # through a dedicated thread.
-    # DEFINES += QQNX_SCREENEVENTTHREAD
+    # Uncomment following line to enable screen event
+    # handling through a dedicated thread.
+    # CONFIG += qqnx_screeneventthread
 } else {
-    DEFINES += QQNX_SCREENEVENTTHREAD
+    CONFIG += qqnx_screeneventthread
 }
 
 # Uncomment these to enable debugging output for various aspects of the plugin
@@ -45,7 +45,6 @@ CONFIG(blackberry) {
 
 SOURCES =   main.cpp \
             qqnxbuffer.cpp \
-            qqnxscreeneventthread.cpp \
             qqnxintegration.cpp \
             qqnxscreen.cpp \
             qqnxwindow.cpp \
@@ -61,7 +60,6 @@ SOURCES =   main.cpp \
 
 HEADERS =   main.h \
             qqnxbuffer.h \
-            qqnxscreeneventthread.h \
             qqnxkeytranslator.h \
             qqnxintegration.h \
             qqnxscreen.h \
@@ -76,6 +74,12 @@ HEADERS =   main.h \
             qqnxservices.h \
             qqnxcursor.h
 
+CONFIG(qqnx_screeneventthread) {
+    DEFINES += QQNX_SCREENEVENTTHREAD
+    SOURCES += qqnxscreeneventthread.cpp
+    HEADERS += qqnxscreeneventthread.h
+}
+
 LIBS += -lscreen
 
 contains(QT_CONFIG, opengles2) {

src/plugins/platforms/qnx/qqnxintegration.cpp

@@ -40,7 +40,9 @@
 ****************************************************************************/
 
 #include "qqnxintegration.h"
+#if defined(QQNXSCREENEVENTTHREAD)
 #include "qqnxscreeneventthread.h"
+#endif
 #include "qqnxnativeinterface.h"
 #include "qqnxrasterbackingstore.h"
 #include "qqnxscreen.h"
@@ -120,7 +122,9 @@ static inline QQnxIntegration::Options parseOptions(const QStringList &paramList
 
 QQnxIntegration::QQnxIntegration(const QStringList &paramList)
     : QPlatformIntegration()
+#if defined(QQNX_SCREENEVENTTHREAD)
     , m_screenEventThread(0)
+#endif
     , m_navigatorEventHandler(new QQnxNavigatorEventHandler())
     , m_virtualKeyboard(0)
 #if defined(QQNX_PPS)
@@ -198,8 +202,13 @@ QQnxIntegration::QQnxIntegration(const QStringList &paramList)
 
 #if defined(Q_OS_BLACKBERRY)
     QQnxVirtualKeyboardBps* virtualKeyboardBps = new QQnxVirtualKeyboardBps;
-    m_bpsEventFilter = new QQnxBpsEventFilter(m_navigatorEventHandler,
-            (m_screenEventThread ? 0 : m_screenEventHandler), virtualKeyboardBps);
+
+#if defined(QQNX_SCREENEVENTTHREAD)
+    m_bpsEventFilter = new QQnxBpsEventFilter(m_navigatorEventHandler, 0, virtualKeyboardBps);
+#else
+    m_bpsEventFilter = new QQnxBpsEventFilter(m_navigatorEventHandler, m_screenEventHandler, virtualKeyboardBps);
+#endif
+
     m_bpsEventFilter->installOnEventDispatcher(m_eventDispatcher);
 
     m_virtualKeyboard = virtualKeyboardBps;

src/plugins/platforms/qnx/qqnxintegration.h

@@ -51,7 +51,9 @@
 QT_BEGIN_NAMESPACE
 
 class QQnxBpsEventFilter;
+#if defined(QQNX_SCREENEVENTTHREAD)
 class QQnxScreenEventThread;
+#endif
 class QQnxFileDialogHelper;
 class QQnxNativeInterface;
 class QQnxWindow;
@@ -144,7 +146,9 @@ private:
     static void removeWindow(screen_window_t qnxWindow);
 
     screen_context_t m_screenContext;
+#if defined(QNX_SCREENEVENTTHREAD)
     QQnxScreenEventThread *m_screenEventThread;
+#endif
     QQnxNavigatorEventHandler *m_navigatorEventHandler;
     QQnxAbstractVirtualKeyboard *m_virtualKeyboard;
 #if defined(QQNX_PPS)