dpi-dependent methods

libs/blockview/blockview.cpp

@@ -91,7 +91,7 @@ void BlockView::_init() {
 	sel_rect.hide();
 	QColor sc = palette().color(QPalette::Highlight);
 	sc.setAlphaF(0.6);
-	QPen pen(sc.darker(200), lineThickness() + 1., Qt::DotLine);
+	QPen pen(sc.darker(200), lineThickness(this) + 1., Qt::DotLine);
 	pen.setCosmetic(true);
 	sel_rect.setPen(pen);
 	sc.setAlphaF(0.2);
@@ -791,7 +791,7 @@ void BlockView::keyReleaseEvent(QKeyEvent * e) {
 
 void BlockView::resizeEvent(QResizeEvent * event) {
 	QGraphicsView::resizeEvent(event);
-	thick = lineThickness();
+	thick = lineThickness(this);
 	adjustThumb();
 	updateNavRect();
 	nav_target = _nav();