/
packageiconbank.cpp
113 lines (101 loc) · 3.55 KB
/
packageiconbank.cpp
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/** @file packageiconbank.cpp Bank for package icons.
*
* @authors Copyright (c) 2017 Jaakko Keränen <jaakko.keranen@iki.fi>
*
* @par License
* LGPL: http://www.gnu.org/licenses/lgpl.html
*
* <small>This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 3 of the License, or (at your
* option) any later version. This program 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 Lesser
* General Public License for more details. You should have received a copy of
* the GNU Lesser General Public License along with this program; if not, see:
* http://www.gnu.org/licenses</small>
*/
#include "de/PackageIconBank"
#include <de/FileSystem>
#include <de/ImageFile>
namespace de {
DENG2_PIMPL_NOREF(PackageIconBank)
{
class PackageImageSource : public TextureBank::ImageSource
{
public:
PackageImageSource(Path const &packagePath,
Size const &displaySize)
: ImageSource(packagePath)
, _displaySize(displaySize)
{
DENG2_ASSERT(packagePath.lastSegment().toStringRef().endsWith(".pack"));
}
Image load() const override
{
String const iconPath = sourcePath() / QStringLiteral("icon");
Image img;
if (ImageFile const *file = FS::tryLocate<ImageFile const>(iconPath + ".jpg"))
{
img = file->image();
}
else if (ImageFile const *file = FS::tryLocate<ImageFile const>(iconPath + ".png"))
{
img = file->image();
}
if (!img.isNull())
{
// Cut to square aspect first.
if (img.height() > img.width())
{
duint const off = img.height() - img.width();
img = img.subImage(Rectanglei(0, off/2, img.width(), img.width()));
}
else if (img.width() > img.height())
{
duint const off = img.width() - img.height();
img = img.subImage(Rectanglei(off/2, 0, img.height(), img.height()));
}
if (img.width() > _displaySize.x)
{
// Resize to display size.
img.resize(_displaySize);
}
}
img.setPointRatio(1.f);
return img;
}
private:
Size _displaySize;
};
Size displaySize;
};
PackageIconBank::PackageIconBank()
: TextureBank("PackageIconBank", BackgroundThread | DisableHotStorage)
, d(new Impl)
{
setSeparator('/'); // expect package paths as keys
}
void PackageIconBank::setDisplaySize(Size const &displaySize)
{
d->displaySize = displaySize;
}
Id PackageIconBank::packageIcon(File const &packageFile)
{
Path const packagePath = packageFile.path();
if (!has(packagePath))
{
add(packagePath, new Impl::PackageImageSource(packagePath, d->displaySize));
}
if (isLoaded(packagePath))
{
// Already have it.
return TextureBank::texture(packagePath);
}
LOG_AS("PackageIconBank");
LOG_RES_VERBOSE("Loading icon from \"%s\"") << packagePath.toString();
// Every new request goes to the front of the queue.
load(packagePath, BeforeQueued);
return Id::None;
}
} // namespace de