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-rw-r--r--vcl/source/outdev/background.cxx77
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diff --git a/vcl/source/outdev/background.cxx b/vcl/source/outdev/background.cxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <vcl/virdev.hxx>
+
+Color OutputDevice::GetBackgroundColor() const
+{
+ return GetBackground().GetColor();
+}
+
+void OutputDevice::SetBackground()
+{
+
+ maBackground = Wallpaper();
+ mbBackground = false;
+
+ if( mpAlphaVDev )
+ mpAlphaVDev->SetBackground();
+}
+
+void OutputDevice::SetBackground( const Wallpaper& rBackground )
+{
+
+ maBackground = rBackground;
+
+ if( rBackground.GetStyle() == WallpaperStyle::NONE )
+ mbBackground = false;
+ else
+ mbBackground = true;
+
+ if( !mpAlphaVDev )
+ return;
+
+ // Some of these are probably wrong (e.g. if the gradient has transparency),
+ // but hopefully nobody uses that. If you do, feel free to implement it properly.
+ if( rBackground.GetStyle() == WallpaperStyle::NONE )
+ {
+ mpAlphaVDev->SetBackground( rBackground );
+ }
+ else if( rBackground.IsBitmap())
+ {
+ BitmapEx bitmap = rBackground.GetBitmap();
+ if( bitmap.IsAlpha())
+ mpAlphaVDev->SetBackground( Wallpaper( BitmapEx( Bitmap( bitmap.GetAlpha()))));
+ else
+ mpAlphaVDev->SetBackground( Wallpaper( COL_BLACK ));
+ }
+ else if( rBackground.IsGradient())
+ {
+ mpAlphaVDev->SetBackground( Wallpaper( COL_BLACK ));
+ }
+ else
+ {
+ // Color background.
+ int transparency = 255 - rBackground.GetColor().GetAlpha();
+ mpAlphaVDev->SetBackground( Wallpaper( Color( transparency, transparency, transparency )));
+ }
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */