From 22fa19e903344df0b59ac5e6aef39e5458a43bda Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Thu, 7 May 2020 18:59:26 +0200
Subject: Fix: using svg as background image results in low-res display

---
 src/mainwindow.cpp | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 7c75489..2a56fbc 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -18,6 +18,7 @@
 #include <QSvgRenderer>
 #include <QAbstractTextDocumentLayout>
 #include <QDateTime>
+#include <QPainter>
 
 #include <sys/types.h>
 #include <sys/socket.h>
@@ -403,9 +404,19 @@ void MainWindow::setBackground()
     Qt::AspectRatioMode arMode = Qt::KeepAspectRatioByExpanding;
     QString bgPath = Settings::backgrundImageFile();
     if (bgPath.length() != 0) {
-        m_background = QImage(bgPath);
-        if (m_background.isNull()) {
-            qWarning() << "Not able to read" << bgPath << "as image";
+        QSvgRenderer svg(bgPath);
+        if (svg.isValid()) {
+            m_background = QImage(m_ScreenRect.size(), QImage::Format_RGB32);
+            m_background.fill(QColor(225,225,220));
+            QSize size = svg.defaultSize().scaled(m_background.size(), Qt::KeepAspectRatioByExpanding);
+            QPainter p(&m_background);
+            QPoint origin((m_background.width() - size.width()) / 2, (m_background.height() - size.height()) / 2);
+            svg.render(&p, QRect(origin, size));
+        } else {
+            m_background = QImage(bgPath);
+            if (m_background.isNull()) {
+                qWarning() << "Not able to read" << bgPath << "as image";
+            }
         }
     }
 
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