qt5: demo: don't crash if page is malformed
diff --git a/qt5/demos/pageview.cpp b/qt5/demos/pageview.cpp
index 4f56108..81e6a98 100644
--- a/qt5/demos/pageview.cpp
+++ b/qt5/demos/pageview.cpp
@@ -1,6 +1,7 @@
/*
* Copyright (C) 2008-2009, Pino Toscano <pino@kde.org>
* Copyright (C) 2013, Fabio D'Urso <fabiodurso@hotmail.it>
+ * Copyright (C) 2017, Albert Astals Cid <aacid@kde.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -26,6 +27,7 @@
#include <QtGui/QImage>
#include <QtWidgets/QLabel>
#include <QtGui/QPixmap>
+#include <QDebug>
PageView::PageView(QWidget *parent)
: QScrollArea(parent)
@@ -56,6 +58,11 @@
void PageView::pageChanged(int page)
{
Poppler::Page *popplerPage = document()->page(page);
+
+ if (!popplerPage) {
+ qDebug() << "Page" << page << "is malformed";
+ return;
+ }
const double resX = m_dpiX * m_zoom;
const double resY = m_dpiY * m_zoom;
