From 9d558e1c18a29bbccec802829f9b8b65fb4101a1 Mon Sep 17 00:00:00 2001
From: "Wladimir J. van der Laan" <laanwj@gmail.com>
Date: Wed, 7 May 2014 08:15:22 +0200
Subject: ui: Check for !pixmap() before trying to export QR code

Adds null pointer checks as well as prevents the Save/Copy context
menu from appearing at all if no image is shown.

Fixes issue #4140
---
 src/qt/receiverequestdialog.h | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'src/qt/receiverequestdialog.h')

diff --git a/src/qt/receiverequestdialog.h b/src/qt/receiverequestdialog.h
index 295a73031d..5614ac635a 100644
--- a/src/qt/receiverequestdialog.h
+++ b/src/qt/receiverequestdialog.h
@@ -15,6 +15,9 @@ namespace Ui {
     class ReceiveRequestDialog;
 }
 class OptionsModel;
+QT_BEGIN_NAMESPACE
+class QMenu;
+QT_END_NAMESPACE
 
 /* Label widget for QR code. This image can be dragged, dropped, copied and saved
  * to disk.
@@ -33,6 +36,10 @@ public slots:
 
 protected:
     virtual void mousePressEvent(QMouseEvent *event);
+    virtual void contextMenuEvent(QContextMenuEvent *event);
+
+private:
+    QMenu *contextMenu;
 };
 
 class ReceiveRequestDialog : public QDialog
-- 
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