HistoryView #10 bug fix

libs/application/historyview.cpp

@@ -1,4 +1,5 @@
 #include "historyview.h"
+#include <QScrollBar>
 #include <QEvent>
 
 
@@ -117,6 +118,7 @@ void HistoryView::itemSelectionChanged() {
 	if (!active_) return;
 	if (index < 1) index = 1;
 	//qDebug() << "changed" << count();
+	int vpos = verticalScrollBar()->value();
 	blockSignals(true);
 	setCurrentItem(item(index - 1));
 	for (int i = 0; i < index; ++i)
@@ -124,6 +126,7 @@ void HistoryView::itemSelectionChanged() {
 	for (int i = index; i < count(); ++i)
 		item(i)->setSelected(false);
 	blockSignals(false);
+	verticalScrollBar()->setValue(vpos);
 	emit redoAvailable(index < count());
 	emit undoAvailable((index > 1));
 }