Properly handle the case where QtWidgets is not available.

It does use a config test for now, just to make it clearer.  The Mac
backend currently requires widgets, but most of the others should work
without it (just not supporting QVideoWidget/WindowControl).

The QVideoDeviceControl interface was modified to remove the QIcon
usage - it was never implemented.

Unfortunately even the QML examples need widgets for the wrapper
application, and will need to be ported to QtGui based wrapper.

Change-Id: I8a55ad5cf09ab51749510bf16f49de0bd3f0bcdb
Reviewed-by: Ling Hu <ling.hu@nokia.com>

src/plugins/directshow/player/directshowplayerservice.cpp

@@ -46,7 +46,7 @@
 #include "directshowmetadatacontrol.h"
 #include "directshowplayercontrol.h"
 #include "directshowvideorenderercontrol.h"
-#ifndef Q_WS_SIMULATOR
+#if defined(HAVE_WIDGETS) && !defined(Q_WS_SIMULATOR)
 #include "vmr9videowindowcontrol.h"
 #endif
 
@@ -83,7 +83,7 @@ DirectShowPlayerService::DirectShowPlayerService(QObject *parent)
     , m_playerControl(0)
     , m_metaDataControl(0)
     , m_videoRendererControl(0)
-#ifndef Q_WS_SIMULATOR
+#if defined(HAVE_WIDGETS) && !defined(Q_WS_SIMULATOR)
     , m_videoWindowControl(0)
 #endif
     , m_audioEndpointControl(0)
@@ -144,7 +144,7 @@ DirectShowPlayerService::~DirectShowPlayerService()
     delete m_audioEndpointControl;
     delete m_metaDataControl;
     delete m_videoRendererControl;
-#ifndef Q_WS_SIMULATOR
+#if defined(HAVE_WIDGETS) && !defined(Q_WS_SIMULATOR)
     delete m_videoWindowControl;
 #endif
 
@@ -161,7 +161,7 @@ QMediaControl *DirectShowPlayerService::requestControl(const char *name)
     } else if (qstrcmp(name, QMetaDataReaderControl_iid) == 0) {
         return m_metaDataControl;
     } else if (qstrcmp(name, QVideoRendererControl_iid) == 0) {
-#ifndef Q_WS_SIMULATOR
+#if defined(HAVE_WIDGETS) && !defined(Q_WS_SIMULATOR)
         if (!m_videoRendererControl && !m_videoWindowControl) {
 #else
         if (!m_videoRendererControl) {
@@ -173,7 +173,7 @@ QMediaControl *DirectShowPlayerService::requestControl(const char *name)
 
             return m_videoRendererControl;
         }
-#ifndef Q_WS_SIMULATOR
+#if defined(HAVE_WIDGETS) && !defined(Q_WS_SIMULATOR)
     } else if (qstrcmp(name, QVideoWindowControl_iid) == 0) {
         if (!m_videoRendererControl && !m_videoWindowControl) {
             m_videoWindowControl = new Vmr9VideoWindowControl;
@@ -198,7 +198,7 @@ void DirectShowPlayerService::releaseControl(QMediaControl *control)
         delete m_videoRendererControl;
 
         m_videoRendererControl = 0;
-#ifndef Q_WS_SIMULATOR
+#if defined(HAVE_WIDGETS) && !defined(Q_WS_SIMULATOR)
     } else if (control == m_videoWindowControl) {
         setVideoOutput(0);
 

src/plugins/directshow/player/directshowplayerservice.h

@@ -59,7 +59,7 @@ class DirectShowAudioEndpointControl;
 class DirectShowMetaDataControl;
 class DirectShowPlayerControl;
 class DirectShowVideoRendererControl;
-#ifndef Q_WS_SIMULATOR
+#if defined(HAVE_WIDGETS) && !defined(Q_WS_SIMULATOR)
 class Vmr9VideoWindowControl;
 #endif
 
@@ -180,7 +180,7 @@ private:
     DirectShowPlayerControl *m_playerControl;
     DirectShowMetaDataControl *m_metaDataControl;
     DirectShowVideoRendererControl *m_videoRendererControl;
-#ifndef Q_WS_SIMULATOR
+#if defined(HAVE_WIDGETS) && !defined(Q_WS_SIMULATOR)
     Vmr9VideoWindowControl *m_videoWindowControl;
 #endif
     DirectShowAudioEndpointControl *m_audioEndpointControl;

src/plugins/directshow/player/player.pri

@@ -35,11 +35,11 @@ SOURCES += \
         $$PWD/mediasamplevideobuffer.cpp \
         $$PWD/videosurfacefilter.cpp
 
-!simulator {
-HEADERS += \
+contains(config_test_widgets, yes):!simulator {
+    HEADERS += \
         $$PWD/vmr9videowindowcontrol.h
 
-SOURCES += \
+    SOURCES += \
         $$PWD/vmr9videowindowcontrol.cpp
 }