Fix image aspect ratio not preserved when resizing window

As this is not currently possible using only QLabel, subclass it
with a new AspectRatioLabel class to provide the functionality.
This should be usable also on other places where we need scaling
with aspect ratio maintaining.

Task-number: QTIFW-1944
Change-Id: I32147b2b487573bb054fcf66b09eb3f8a0350ccd
Reviewed-by: Katja Marttila <katja.marttila@qt.io>

1 files changed, 2 insertions, 3 deletions

diff --git a/src/libs/installer/performinstallationform.cpp b/src/libs/installer/performinstallationform.cpp
index 2c5edf70f..28e2e1f45 100644
--- a/src/libs/installer/performinstallationform.cpp
+++ b/src/libs/installer/performinstallationform.cpp
@@ -139,11 +139,10 @@ void PerformInstallationForm::setupUi(QWidget *widget)
     m_productImagesScrollArea->setObjectName(QLatin1String("ProductImagesScrollArea"));
     m_productImagesScrollArea->setWidgetResizable(true);
     m_productImagesScrollArea->setFrameShape(QFrame::NoFrame);
+    m_productImagesScrollArea->setStyleSheet(QLatin1String("background-color:transparent;"));
 
-    m_productImagesLabel = new QLabel(widget);
+    m_productImagesLabel = new AspectRatioLabel(widget);
     m_productImagesLabel->setObjectName(QLatin1String("ProductImagesLabel"));
-    m_productImagesLabel->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored);
-    m_productImagesLabel->setScaledContents(true);
 
     m_productImagesScrollArea->setWidget(m_productImagesLabel);
     bottomLayout->addWidget(m_productImagesScrollArea);