diff --git a/libs/graphic/graphic.cpp b/libs/graphic/graphic.cpp
index 8470f91..d49ee70 100644
--- a/libs/graphic/graphic.cpp
+++ b/libs/graphic/graphic.cpp
@@ -30,6 +30,7 @@ __GraphicRegistrator__ __graphic_registrator__;
 class LegendScrollArea: public QScrollArea {
 public:
 	LegendScrollArea(QWidget * w): QScrollArea() {
+		minimum_hei = 0;
 		setFrameShape(QFrame::NoFrame);
 		setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
 		setWidgetResizable(true);
@@ -40,6 +41,7 @@ public:
 		viewport()->setAutoFillBackground(false);
 		w->setAutoFillBackground(false);
 	}
+	int minimum_hei;
 protected:
 	virtual QSize sizeHint() const {
 		QSize ret;
@@ -47,6 +49,9 @@ protected:
 		ret = widget()->sizeHint();
 		return ret;
 	}
+	virtual QSize minimumSizeHint() const {
+		return QSize(1, minimum_hei);
+	}
 };
 
 
@@ -1597,15 +1602,29 @@ void Graphic::updateLegend(bool es) {
 	int row = 0, col = 0;
 	bool lv = ui->scrollLegend->isVisibleTo(this);
 	ui->scrollLegend->hide();
+	LegendScrollArea * leg_sa = (LegendScrollArea *)ui->scrollLegend->layout()->itemAt(0)->widget();
 	for (int i = 0; i < graphics.size(); i++) {
 		ui->layoutLegend->addWidget(graphics[i].pb,row,col);
-		graphics[i].pb->show();
+		QCheckBox * check = graphics[i].pb;
+		check->show();
+		if (leg_sa->minimum_hei == 0) {
+			leg_sa->minimum_hei = ui->widgetLegend->sizeHint().height();
+/*#if QT_VERSION >= QT_VERSION_CHECK(5, 4, 0)
+			QTimer::singleShot(0, this, [this,leg_sa,check](){
+				leg_sa->minimum_hei = check->sizeHint().height();
+				leg_sa->updateGeometry();
+				qDebug() << leg_sa->minimum_hei << ui->widgetLegend->sizeHint();
+			});
+#else
+			leg_sa->minimum_hei = check->sizeHint().height();
+#endif*/
+		}
 		col++;
 		if (col > maxcol) {col = 0; row++;}
 	}
 	ui->gridLayout->invalidate();
 	ui->scrollLegend->setVisible(lv);
-	ui->scrollLegend->layout()->itemAt(0)->widget()->updateGeometry();
+	leg_sa->updateGeometry();
 	//ui->gridLayout->invalidate();
 	leg_update = true;
 	if (es) emit graphicSettingsChanged();