eliminate unneeded dependencies on public headers

- Remove unneeded dependencies from libqtappfw public
headers, specifically MessageEngine and Message
hierarchy header files, in preparation for refactoring
work on these areas.
This change helps shield client apps from the
upcoming changes in the library, and highlight the
separation between the library's core and the various
modules providing public interfaces to those apps.

- Make MessageType an scoped enum to fwd declare it.

- Update Copyright statement on files updated by
this patch.

Bug-AGL: SPEC-3112
Signed-off-by: Raquel Medina <raquel.medina@konsulko.com>
Change-Id: I12fd9cdc034aa1166f6448c07befadd9d2042b05

2 files changed, 9 insertions, 5 deletions

diff --git a/hvac/hvac.cpp b/hvac/hvac.cpp
index 507cfeb..f9e509b 100644
--- a/hvac/hvac.cpp
+++ b/hvac/hvac.cpp
@@ -14,15 +14,17 @@
  * limitations under the License.
  */
 
+#include <QDebug>
 #include <QMetaEnum>
 #include <QMimeDatabase>
 #include <QtQml/QQmlEngine>
 
 #include "message.h"
-#include "messageengine.h"
-#include "hvac.h"
 #include "hvacmessage.h"
 #include "responsemessage.h"
+#include "messageengine.h"
+#include "hvac.h"
+
 
 // TODO: don't duplicate defaults from HVAC service here
 HVAC::HVAC (QUrl &url, QObject * parent) :
@@ -75,7 +77,7 @@ void HVAC::set_temp_right_zone(int temp)
 
 void HVAC::onMessageReceived(MessageType type, Message *msg)
 {
-    if (msg->isEvent() && type == HVACEventMessage) {
+    if (msg->isEvent() && type == MessageType::HVACEventMessage) {
         HVACMessage *tmsg = qobject_cast<HVACMessage*>(msg);
 
         if (tmsg->isLanguageEvent()) {
diff --git a/hvac/hvac.h b/hvac/hvac.h
index 8a4ca3a..47a9e08 100644
--- a/hvac/hvac.h
+++ b/hvac/hvac.h
@@ -17,13 +17,15 @@
 #ifndef HVAC_H
 #define HVAC_H
 
-#include <QDebug>
 #include <QObject>
 #include <QJsonArray>
 #include <QtQml/QQmlContext>
 #include <QtQml/QQmlListProperty>
 
-#include "messageengine.h"
+class MessageEngine;
+class Message;
+
+enum class MessageType;
 
 class HVAC : public QObject
 {