bwEvent.h

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#pragma once
 
#include "bwDistance.h"
#include "bwPoint.h"
 
namespace bWidgets {
 
class bwEvent {
 public:
  bwEvent(bwPoint _location);
  virtual ~bwEvent() = default;
 
  void swallow();
  void unswallow();
  auto isSwallowed() const -> bool;
 
  const bwPoint location;
 
 private:
  bool is_swallowed{false};
};
 
class bwMouseButtonEvent : public bwEvent {
 public:
  enum class Button {
    LEFT,
    RIGHT,
    WHEEL,
 
    UNKNOWN
  };
 
  bwMouseButtonEvent(Button _button, bwPoint _location);
 
  const Button button;
};
 
class bwMouseButtonDragEvent : public bwMouseButtonEvent {
 public:
  enum DragState {
    DRAGGING_BELOW_THRESHOLD,
    DRAGGING,
  };
 
  bwMouseButtonDragEvent(Button _button, bwPoint _location);
 
  void addMouseMovement(bwPoint new_location);
 
  const static short DRAG_THRESHOLD = 3;
 
  bwDistance drag_distance;
  DragState drag_state;
};
 
class bwMouseWheelEvent : public bwMouseButtonEvent {
 public:
  enum class Direction { UP, DOWN };
 
  bwMouseWheelEvent(Direction _direction, bwPoint _location);
 
  auto getDirection() const -> Direction;
 
 private:
  Direction direction;
};
 
}  // namespace bWidgets