ensuring UI items are parented

io/exportthread.cpp

@@ -27,7 +27,10 @@ extern "C" {
 #include <QOpenGLPaintDevice>
 #include <QPainter>
 
-ExportThread::ExportThread() : continueEncode(true) {
+ExportThread::ExportThread(QObject *parent) :
+	QThread(parent),
+	continueEncode(true)
+{
 	surface.create();
 
 	fmt_ctx = nullptr;

io/exportthread.h

@@ -28,7 +28,7 @@ extern "C" {
 class ExportThread : public QThread {
 	Q_OBJECT
 public:
-	ExportThread();
+	ExportThread(QObject* parent = nullptr);
 	void run();
 
 	// export parameters

io/previewgenerator.h

@@ -4,10 +4,12 @@
 #include <QThread>
 #include <QSemaphore>
 
-#define ICON_TYPE_VIDEO 0
-#define ICON_TYPE_AUDIO 1
-#define ICON_TYPE_IMAGE 2
-#define ICON_TYPE_ERROR 3
+enum IconType {
+	ICON_TYPE_VIDEO,
+	ICON_TYPE_AUDIO,
+	ICON_TYPE_IMAGE,
+	ICON_TYPE_ERROR
+};
 
 struct Footage;
 struct FootageStream;
@@ -16,28 +18,28 @@ class Media;
 
 class PreviewGenerator : public QThread
 {
-    Q_OBJECT
+	Q_OBJECT
 public:
 	PreviewGenerator(Media*, Footage*, bool);
-    void run();
+	void run();
 	void cancel();
 signals:
 	void set_icon(int, bool);
 private:
-    void parse_media();
+	void parse_media();
 	bool retrieve_preview(const QString &hash);
-    void generate_waveform();
+	void generate_waveform();
 	void finalize_media();
-    AVFormatContext* fmt_ctx;
-    Media* media;
-    Footage* footage;
+	AVFormatContext* fmt_ctx;
+	Media* media;
+	Footage* footage;
 	bool retrieve_duration;
 	bool contains_still_image;
 	bool replace;
 	bool cancelled;
 	QString data_path;
-    QString get_thumbnail_path(const QString &hash, const FootageStream &ms);
-    QString get_waveform_path(const QString& hash, const FootageStream &ms);
+	QString get_thumbnail_path(const QString &hash, const FootageStream &ms);
+	QString get_waveform_path(const QString& hash, const FootageStream &ms);
 };
 
 #endif // PREVIEWGENERATOR_H