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#ifndef DataFormats_SiStripDetId_PXBDetId_H
#define DataFormats_SiStripDetId_PXBDetId_H
#include <ostream>
#include "DataFormats/DetId/interface/DetId.h"
#include "DataFormats/SiPixelDetId/interface/PixelSubdetector.h"
/**
* Det identifier class for the PixelBarrel
*/
class PXBDetId;
std::ostream& operator<<(std::ostream& os, const PXBDetId& id);
class PXBDetId : public DetId {
public:
/** Constructor of a null id */
PXBDetId();
/** Constructor from a raw value */
PXBDetId(uint32_t rawid);
/**Construct from generic DetId */
PXBDetId(const DetId& id);
PXBDetId(uint32_t layer, uint32_t ladder, uint32_t module) : DetId(DetId::Tracker, PixelSubdetector::PixelBarrel) {
id_ |= (layer & layerMask_) << layerStartBit_ | (ladder & ladderMask_) << ladderStartBit_ |
(module & moduleMask_) << moduleStartBit_;
}
/// layer id
unsigned int layer() const { return int((id_ >> layerStartBit_) & layerMask_); }
/// ladder id
unsigned int ladder() const { return ((id_ >> ladderStartBit_) & ladderMask_); }
/// det id
unsigned int module() const { return ((id_ >> moduleStartBit_) & moduleMask_); }
private:
/// two bits would be enough, but we could use the number "0" as a wildcard
static const unsigned int layerStartBit_ = 16;
static const unsigned int ladderStartBit_ = 8;
static const unsigned int moduleStartBit_ = 2;
/// two bits would be enough, but we could use the number "0" as a wildcard
static const unsigned int layerMask_ = 0xF;
static const unsigned int ladderMask_ = 0xFF;
static const unsigned int moduleMask_ = 0x3F;
};
#endif
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