Fix graphical glitch in the actor faceset view in the database

The actor faceset view in the database sometimes had graphical
artifacts if no actor was selected. This is fixed now.

src/ui/viewer/faceset_graphics_item.cpp

@@ -25,6 +25,10 @@
 
 FaceSetGraphicsItem::FaceSetGraphicsItem(ProjectData& project, const QPixmap pix) :
 	QGraphicsItem(), m_project(project), m_image(pix) {
+	if (pix.isNull()) {
+		m_image = QPixmap(48, 48);
+		m_image.fill(QColor(255, 255, 255, 0));
+	}
 }
 
 QRect FaceSetGraphicsItem::faceRect() const {
@@ -51,7 +55,13 @@ void FaceSetGraphicsItem::refresh(const lcf::rpg::Actor& actor) {
 void FaceSetGraphicsItem::refresh(QString filename, int index) {
 	if (m_filename != filename) {
 		m_filename = filename;
-		m_image = ImageLoader::Load(m_project.project().findFile(FACESET, filename, FileFinder::FileType::Image));
+		QString path = m_project.project().findFile(FACESET, filename, FileFinder::FileType::Image);
+		if (!path.isEmpty()) {
+			m_image = ImageLoader::Load(path);
+		} else {
+			m_image = QPixmap(48, 48);
+			m_image.fill(QColor(255, 255, 255, 0));
+		}
 	}
 	setIndex(index);
 	update();

src/ui/viewer/faceset_graphics_item.h

@@ -27,7 +27,7 @@ class ProjectData;
 
 class FaceSetGraphicsItem : public QGraphicsItem {
 public:
-	explicit FaceSetGraphicsItem(ProjectData& m_project, const QPixmap pix = QPixmap(192,192));
+	explicit FaceSetGraphicsItem(ProjectData& m_project, const QPixmap pix = QPixmap());
 
 	QRect faceRect() const;
 	QRectF boundingRect() const override;