From b6d455a02bd338e9dc0faa09d4d8177ecd8d569a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Petr=20Mr=C3=A1zek?= <peterix@gmail.com>
Date: Sun, 10 Apr 2016 15:53:05 +0200
Subject: NOISSUE reorganize and document libraries

---
 api/logic/resources/ResourceObserver.cpp | 55 ++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 api/logic/resources/ResourceObserver.cpp

(limited to 'api/logic/resources/ResourceObserver.cpp')

diff --git a/api/logic/resources/ResourceObserver.cpp b/api/logic/resources/ResourceObserver.cpp
new file mode 100644
index 00000000..4f168fd2
--- /dev/null
+++ b/api/logic/resources/ResourceObserver.cpp
@@ -0,0 +1,55 @@
+#include "ResourceObserver.h"
+
+#include <QDebug>
+
+#include "Resource.h"
+
+static const char *defaultPropertyForTarget(QObject *target)
+{
+	if (target->inherits("QLabel"))
+	{
+		return "pixmap";
+	}
+	else if (target->inherits("QAction") ||
+			 target->inherits("QMenu") ||
+			 target->inherits("QAbstractButton"))
+	{
+		return "icon";
+	}
+	// for unit tests
+	else if (target->inherits("DummyObserverObject"))
+	{
+		return "property";
+	}
+	else
+	{
+		Q_ASSERT_X(false, "ResourceObserver.cpp: defaultPropertyForTarget", "Unrecognized QObject subclass");
+		return nullptr;
+	}
+}
+
+QObjectResourceObserver::QObjectResourceObserver(QObject *target, const char *property)
+	: QObject(target), m_target(target)
+{
+	const QMetaObject *mo = m_target->metaObject();
+	m_property = mo->property(mo->indexOfProperty(
+								  property ?
+									  property
+									: defaultPropertyForTarget(target)));
+}
+void QObjectResourceObserver::resourceUpdated()
+{
+	m_property.write(m_target, getInternal(m_property.type()));
+}
+
+
+ResourceObserver::~ResourceObserver()
+{
+	m_resource->notifyObserverDeleted(this);
+}
+
+QVariant ResourceObserver::getInternal(const int typeId) const
+{
+	Q_ASSERT(m_resource);
+	return m_resource->getResourceInternal(typeId);
+}
-- 
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