ui: Indexing UI

* Added DialogView with QtDialogView implementation to handle information dialogs
* Implemented QtIndexingDialog class that covers all different dialogs for indexing
* Directly communicate with DialogView from Prpject and all Tasks involved in indexing
* Block QtMainWindow UI while indexing

src/lib_gui/qt/view/QtDialogView.h

@@ -0,0 +1,55 @@
+#ifndef QT_DIALOG_VIEW_H
+#define QT_DIALOG_VIEW_H
+
+#include "component/view/DialogView.h"
+
+#include "qt/utility/QtThreadedFunctor.h"
+#include "qt/window/QtWindowStack.h"
+
+#include "utility/messaging/MessageListener.h"
+#include "utility/messaging/type/MessageInterruptTasks.h"
+#include "utility/messaging/type/MessageShowErrors.h"
+
+class QtMainWindow;
+
+class QtDialogView
+	: public QObject
+	, public DialogView
+	, public MessageListener<MessageInterruptTasks>
+	, public MessageListener<MessageShowErrors>
+{
+	Q_OBJECT
+
+public:
+	QtDialogView(QtMainWindow* mainWindow);
+	virtual ~QtDialogView();
+
+	void showProgressDialog(const std::string& title, const std::string& message) override;
+	void hideProgressDialog() override;
+
+	bool startIndexingDialog(size_t cleanFileCount, size_t indexFileCount) override;
+	void updateIndexingDialog(size_t fileCount, size_t totalFileCount, std::string sourcePath) override;
+	void finishedIndexingDialog(size_t fileCount, size_t totalFileCount, float time, ErrorCountInfo errorInfo) override;
+
+	int confirm(const std::string& message, const std::vector<std::string>& options) override;
+
+private:
+	void handleMessage(MessageInterruptTasks* message) override;
+	void handleMessage(MessageShowErrors* message) override;
+
+	void updateErrorCount(size_t errorCount, size_t fatalCount);
+
+	template<typename T>
+		T* createWindow();
+
+	void setUIBlocked(bool blocked);
+
+	QtMainWindow* m_mainWindow;
+
+	QtWindowStack m_windowStack;
+
+	QtThreadedLambdaFunctor m_onQtThread;
+	QtThreadedLambdaFunctor m_onQtThread2;
+};
+
+#endif // QT_DIALOG_VIEW_H