* Copyright 2009, Alexandre Deckner, alex@zappotek.com
* Distributed under the terms of the MIT License.
*/
#ifndef LONG_AND_DRAG_TRACKING_FILTER_H
#define LONG_AND_DRAG_TRACKING_FILTER_H
#include <MessageFilter.h>
#include <Point.h>
class BHandler;
class BMessageRunner;
namespace BPrivate {
class LongAndDragTrackingFilter : public BMessageFilter {
public:
LongAndDragTrackingFilter(
uint32 longMessageWhat,
uint32 dragMessageWhat,
float radiusThreshold = 4.0f,
bigtime_t durationThreshold = 0);
~LongAndDragTrackingFilter();
filter_result Filter(BMessage* message, BHandler** target);
private:
void _StopTracking();
uint32 fLongMessageWhat;
uint32 fDragMessageWhat;
BMessageRunner* fMessageRunner;
BPoint fClickPoint;
uint32 fClickButtons;
float fSquaredRadiusThreshold;
bigtime_t fDurationThreshold;
};
}
using BPrivate::LongAndDragTrackingFilter;
#endif
