Function SaveIcon

launcher/ui/dialogs/ExportInstanceDialog.cpp:361–397

Save icon to instance's folder is needed

/// Save icon to instance's folder is needed
void SaveIcon(InstancePtr m_instance)
{
    auto iconKey = m_instance->iconKey();
    auto iconList = APPLICATION->icons();
    auto mmcIcon = iconList->icon(iconKey);
    if(!mmcIcon || mmcIcon->isBuiltIn()) {
        return;
    }
    auto path = mmcIcon->getFilePath();
    if(!path.isNull()) {
        QFileInfo inInfo (path);
        FS::copy(path, FS::PathCombine(m_instance->instanceRoot(), inInfo.fileName())) ();
        return;
    }
    auto & image = mmcIcon->m_images[mmcIcon->type()];
    auto & icon = image.icon;
    auto sizes = icon.availableSizes();
    if(sizes.size() == 0)
    {
        return;
    }
    auto areaOf = [](QSize size)
    {
        return size.width() * size.height();
    };
    QSize largest = sizes[0];
    // find variant with largest area
    for(auto size: sizes)
    {
        if(areaOf(largest) < areaOf(size))
        {
            largest = size;
        }
    }
    auto pixmap = icon.pixmap(largest);
    pixmap.save(FS::PathCombine(m_instance->instanceRoot(), iconKey + ".png"));
}

bool ExportInstanceDialog::doExport()
{