X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fwidgets%2Fpopup.hpp;h=879c5f9d83542e3a4fc50485441554cabdc9ea24;hp=116dad50aad72a98000f306937bb1df9863e46d3;hb=HEAD;hpb=efdec55aec1a137460fa362a381ed1904182bfed

diff --git a/pv/widgets/popup.hpp b/pv/widgets/popup.hpp
index 116dad50..879c5f9d 100644
--- a/pv/widgets/popup.hpp
+++ b/pv/widgets/popup.hpp
@@ -20,11 +20,29 @@
 #ifndef PULSEVIEW_PV_WIDGETS_POPUP_HPP
 #define PULSEVIEW_PV_WIDGETS_POPUP_HPP
 
+#include <QScrollArea>
 #include <QWidget>
 
 namespace pv {
 namespace widgets {
 
+
+// A regular QScrollArea has a fixed size and provides scroll bars when the
+// content can't be shown in its entirety. However, we want no horizontal
+// scroll bar and want the scroll area to adjust its width to fit the content
+// instead.
+// Inspired by https://stackoverflow.com/questions/21253755/qscrollarea-with-dynamically-changing-contents?answertab=votes#tab-top
+class QWidthAdjustingScrollArea : public QScrollArea
+{
+	Q_OBJECT
+
+public:
+	QWidthAdjustingScrollArea(QWidget* parent = nullptr);
+	void setWidget(QWidget* w);
+	bool eventFilter(QObject* obj, QEvent* ev);
+};
+
+
 class Popup : public QWidget
 {
 	Q_OBJECT
@@ -53,7 +71,7 @@ public:
 
 	bool eventFilter(QObject *obj, QEvent *event);
 
-	void show();
+	virtual void show();
 
 private:
 	bool space_for_arrow() const;