ui: Extended project setup to support creation and editing of Source Groups (issue #230)

* Turned QtProjectWizzard into window for Source Group ui
* Clicking into FilePicker when empty will open dialog right away
* Fixed environment variable use throughout all Source Group path values
* Moved Preferences to QtPreferencesWindow

bug id = 230

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src/lib_gui/qt/window/project_wizzard/QtProjectWizzardContentProjectData.h

@@ -0,0 +1,35 @@
+#ifndef QT_PROJECT_WIZZARD_CONTENT_PROJECT_DATA_H
+#define QT_PROJECT_WIZZARD_CONTENT_PROJECT_DATA_H
+
+#include "qt/element/QtLocationPicker.h"
+#include "qt/window/project_wizzard/QtProjectWizzardContent.h"
+
+class ProjectSettings;
+
+class QtProjectWizzardContentProjectData
+	: public QtProjectWizzardContent
+{
+	Q_OBJECT
+
+public:
+	QtProjectWizzardContentProjectData(
+		std::shared_ptr<ProjectSettings> projectSettings,
+		QtProjectWizzardWindow* window,
+		bool disableNameEditing = false);
+
+	// QtProjectWizzardContent implementation
+	virtual void populate(QGridLayout* layout, int& row) override;
+
+	virtual void load() override;
+	virtual void save() override;
+	virtual bool check() override;
+
+private:
+	std::shared_ptr<ProjectSettings> m_projectSettings;
+
+	bool m_disableNameEditing;
+	QLineEdit* m_projectName;
+	QtLocationPicker* m_projectFileLocation;
+};
+
+#endif // QT_PROJECT_WIZZARD_CONTENT_PROJECT_DATA_H