qt-creator/src/plugins/coreplugin/fileiconprovider.h

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#ifndef FILEICONPROVIDER_H
#define FILEICONPROVIDER_H

#include <coreplugin/core_global.h>

#include <QStyle>
#include <QFileIconProvider>

QT_BEGIN_NAMESPACE
class QFileInfo;
class QIcon;
class QPixmap;
class QString;
QT_END_NAMESPACE

namespace Core {

class MimeType;
struct FileIconProviderPrivate;

class CORE_EXPORT FileIconProvider : public QFileIconProvider
{
    FileIconProvider();

public:
    virtual ~FileIconProvider();

    // Implement QFileIconProvider
    virtual QIcon icon(const QFileInfo &info) const;
    using QFileIconProvider::icon;

    // Register additional overlay icons
    static QPixmap overlayIcon(QStyle::StandardPixmap baseIcon, const QIcon &overlayIcon, const QSize &size);
    void registerIconOverlayForSuffix(const QIcon &icon, const QString &suffix);
    void registerIconOverlayForMimeType(const QIcon &icon, const MimeType &mimeType);

    static FileIconProvider *instance();

private:
    FileIconProviderPrivate *d;
};

} // namespace Core

#endif // FILEICONPROVIDER_H