add support for dialog suite v1

Author: devernay

Engine/OfxHost.cpp

@@ -1285,6 +1285,26 @@ Natron::OfxHost::mutexTryLock(const OfxMutexHandle mutex)
 
 #endif // ifdef OFX_SUPPORTS_MULTITHREAD
 
+#ifdef OFX_SUPPORTS_DIALOG
+// dialog
+/// @see OfxDialogSuiteV1.RequestDialog()
+OfxStatus
+Natron::OfxHost::requestDialog(void* user_data)
+{
+#pragma message WARN("OfxDialogSuiteV1: TODO")
+    // TODO: call Natron::OfxHost::dialog(user_data) in the main thread
+    return kOfxStatFailed;
+}
+
+/// @see OfxDialogSuiteV1.NotifyRedrawPending()
+OfxStatus
+Natron::OfxHost::notifyRedrawPending()
+{
+    return kOfxStatReplyDefault;
+}
+
+#endif
+
 #ifdef OFX_SUPPORTS_OPENGLRENDER
 /// @see OfxImageEffectOpenGLRenderSuiteV1.flushResources()
 OfxStatus Natron::OfxHost::flushOpenGLResources() const

global.pri

@@ -17,7 +17,7 @@
 # ***** END LICENSE BLOCK *****
 
 CONFIG += warn_on no_keywords
-DEFINES += OFX_EXTENSIONS_NUKE OFX_EXTENSIONS_TUTTLE OFX_EXTENSIONS_VEGAS OFX_SUPPORTS_PARAMETRIC OFX_EXTENSIONS_TUTTLE OFX_EXTENSIONS_NATRON OFX_SUPPORTS_OPENGLRENDER
+DEFINES += OFX_EXTENSIONS_NUKE OFX_EXTENSIONS_TUTTLE OFX_EXTENSIONS_VEGAS OFX_SUPPORTS_PARAMETRIC OFX_EXTENSIONS_TUTTLE OFX_EXTENSIONS_NATRON OFX_SUPPORTS_OPENGLRENDER OFX_SUPPORTS_DIALOG
 DEFINES += OFX_SUPPORTS_MULTITHREAD
 
 trace_ofx_actions{