X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=pv%2Fviews%2Fdecoder_output%2FQHexView.cpp;h=586a5cdac373da49b36515b1903349c7500e1d5a;hb=b2b18d3aabf497666c3cff76d0c6663623539e36;hp=2289a07d509fd6bff90d5360b42b4a67a42df9ab;hpb=01ba5ed7e7094dead8002ee430d67bde106f8835;p=pulseview.git

diff --git a/pv/views/decoder_output/QHexView.cpp b/pv/views/decoder_output/QHexView.cpp
index 2289a07d..586a5cda 100644
--- a/pv/views/decoder_output/QHexView.cpp
+++ b/pv/views/decoder_output/QHexView.cpp
@@ -69,6 +69,8 @@ void QHexView::setData(QByteArray *data)
 	data_ = data;
 	cursorPos_ = 0;
 	resetSelection(0);
+
+	viewport()->update();
 }
 
 void QHexView::showFromOffset(size_t offset)
@@ -79,12 +81,16 @@ void QHexView::showFromOffset(size_t offset)
 		int cursorY = cursorPos_ / (2 * BYTES_PER_LINE);
 		verticalScrollBar() -> setValue(cursorY);
 	}
+
+	viewport()->update();
 }
 
 void QHexView::clear()
 {
 	verticalScrollBar()->setValue(0);
 	data_ = nullptr;
+
+	viewport()->update();
 }
 
 QSize QHexView::getFullSize() const
@@ -121,7 +127,7 @@ void QHexView::paintEvent(QPaintEvent *event)
 	// Fill widget background
 	painter.fillRect(event->rect(), palette().color(QPalette::Base));
 
-	if (!data_) {
+	if (!data_ || (data_->size() == 0)) {
 		painter.setPen(palette().color(QPalette::Text));
 		QString s = tr("No data available");
 		int x = (areaSize.width() - fontMetrics().boundingRect(s).width()) / 2;