SlsBitmapFactory.cxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 * 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
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 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */
 
#include "SlsBitmapFactory.hxx"
 
#include <PreviewRenderer.hxx>
#include <sdpage.hxx>
#include <vcl/bitmapex.hxx>
 
namespace sd::slidesorter::view {
class SlideSorterView;
class PageObjectViewObjectContact;
}
 
namespace sd::slidesorter::cache {
 
BitmapFactory::BitmapFactory()
    : maRenderer(false)
{
}
 
BitmapFactory::~BitmapFactory()
{
}
 
BitmapEx BitmapFactory::CreateBitmap (
    const SdPage& rPage,
    const Size& rPixelSize,
    const bool bDoSuperSampling)
{
    Size aSize (rPixelSize);
    if (bDoSuperSampling)
    {
        // Supersampling factor
        int aSuperSamplingFactor = 2;
        aSize.setWidth( aSize.Width() * aSuperSamplingFactor );
        aSize.setHeight( aSize.Height() * aSuperSamplingFactor );
    }
 
    BitmapEx aPreview (maRenderer.RenderPage (
        &rPage,
        aSize,
        true,
        false).GetBitmapEx());
    if (bDoSuperSampling)
    {
        aPreview.Scale(rPixelSize, BmpScaleFlag::BestQuality);
    }
 
    return aPreview;
}
 
} // end of namespace ::sd::slidesorter::cache
 
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