New FixedAspectRatioLabel for pixmaps.

src/libcalamaresui/CMakeLists.txt

@@ -18,6 +18,7 @@ list( APPEND ${CALAMARESUI_LIBRARY_TARGET}_SOURCES
     viewpages/ViewStep.cpp
 
     widgets/ClickableLabel.cpp
+    widgets/FixedAspectRatioLabel.cpp
     widgets/QtWaitingSpinner.cpp
     widgets/WaitingWidget.cpp
 

src/libcalamaresui/widgets/FixedAspectRatioLabel.cpp

@@ -0,0 +1,50 @@
+/* === This file is part of Calamares - <http://github.com/calamares> ===
+ *
+ *   Copyright 2015, Teo Mrnjavac <teo@kde.org>
+ *
+ *   Calamares is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   Calamares is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with Calamares. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "FixedAspectRatioLabel.h"
+
+
+FixedAspectRatioLabel::FixedAspectRatioLabel( QWidget* parent )
+    : QLabel( parent )
+{}
+
+
+FixedAspectRatioLabel::~FixedAspectRatioLabel()
+{}
+
+
+void
+FixedAspectRatioLabel::setPixmap( const QPixmap& pixmap )
+{
+    m_pixmap = pixmap;
+    QLabel::setPixmap( pixmap.scaled(
+                           contentsRect().size(),
+                           Qt::KeepAspectRatio,
+                           Qt::SmoothTransformation ) );
+}
+
+
+void
+FixedAspectRatioLabel::resizeEvent( QResizeEvent* event )
+{
+    QLabel::setPixmap( m_pixmap.scaled(
+                           contentsRect().size(),
+                           Qt::KeepAspectRatio,
+                           Qt::SmoothTransformation ) );
+}
+

src/libcalamaresui/widgets/FixedAspectRatioLabel.h

@@ -0,0 +1,40 @@
+/* === This file is part of Calamares - <http://github.com/calamares> ===
+ *
+ *   Copyright 2015, Teo Mrnjavac <teo@kde.org>
+ *
+ *   Calamares is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   Calamares is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with Calamares. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef FIXEDASPECTRATIOLABEL_H
+#define FIXEDASPECTRATIOLABEL_H
+
+#include <QLabel>
+#include <QPixmap>
+
+class FixedAspectRatioLabel : public QLabel
+{
+    Q_OBJECT
+public:
+    explicit FixedAspectRatioLabel( QWidget* parent = nullptr );
+    virtual ~FixedAspectRatioLabel();
+
+public slots:
+    virtual void setPixmap( const QPixmap &pixmap );
+    void resizeEvent( QResizeEvent* event ) override;
+
+private:
+    QPixmap m_pixmap;
+};
+
+#endif // FIXEDASPECTRATIOLABEL_H