opdragbx.h File Reference

(r1785/r1282)

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Classes

class  OpDragBox
 This is a base class for operations that use a drag box to select an area within a view, such as the selector and the zoom tools. This class looks after the chore of correctly drawing and updating the xored drag box. More...
class  OpCentredDragBox
 This is a base class for drag operations that would like a drag box to be centred on the initial click point, such as (optionally) the zoom tool. Apart from providing a new default CalcDragBox function, it is used the same way as OpDragBox. More...


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