hand-rel ( gadget -- loc )
Factor handbook » UI framework » Implementing new gadgets » UI gestures » Mouse gestures
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Vocabulary
ui.gestures

Inputs
gadgeta gadget


Outputs
loca pair of integers


Word description
Outputs the location of the mouse relative to the top-left corner of the gadget. Only meaningful inside a button-down, button-up, motion or drag gesture handler, where the gadget is contained in the same world as the gadget receiving the gesture.

See also
hand-loc

Definition
USING: kernel math.vectors namespaces ui.gadgets ;

IN: ui.gestures

: hand-rel ( gadget -- loc )
hand-loc get-global swap screen-loc v- ;