app/decorator/DefaultWindowBehaviour.cpp

162 		BPoint delta = where - fLastMousePosition;
163 		// NOTE: "delta" is later used to change fLastMousePosition.
164 		// If for some reason no change should take effect, delta
174 			fMouseMoveDistance += delta.x * delta.x + delta.y * delta.y;
179 				delta = B_ORIGIN;
182 		// perform the action (this also updates the delta)
183 		MouseMovedAction(delta, now);
186 		fLastMousePosition += delta;
189 	virtual void MouseMovedAction(BPoint& delta, bigtime_t now)
237 	virtual void MouseMovedAction(BPoint& delta, bigtime_t now)
242 			fBehavior.AlterDeltaForSnap(fWindow, delta, now);
243 			fDesktop->MoveWindowBy(fWindow, delta.x, delta.y);
245 			// constrain delta to true change in position
246 			delta = fWindow->Frame().LeftTop() - oldLeftTop;
248 			delta = BPoint(0, 0);
279 	virtual void MouseMovedAction(BPoint& delta, bigtime_t now)
283 				delta.y = 0;
285 				delta.x = 0;
290 				fDelta = delta;
291 				fDesktop->SetWindowOutlinesDelta(fWindow, delta);
293 				fDesktop->ResizeWindowBy(fWindow, delta.x, delta.y);
295 			// constrain delta to true change in size
296 			delta = fWindow->Frame().RightBottom() - oldRightBottom;
298 			delta = BPoint(0, 0);
319 	virtual void MouseMovedAction(BPoint& delta, bigtime_t now)
323 		location += delta.x;
326 			delta.y = 0;
328 			delta = BPoint(0, 0);
458 	virtual void MouseMovedAction(BPoint& delta, bigtime_t now)
461 			delta.x = 0;
463 			delta.y = 0;
465 		if (delta.x == 0 && delta.y == 0)
473 			fDelta = delta;
475 				delta.x * fHorizontal, delta.y * fVertical));
477 			fDesktop->ResizeWindowBy(fWindow, delta.x * fHorizontal,
478 				delta.y * fVertical);
481 		// constrain delta to true change in size
482 		delta = fWindow->Frame().RightBottom() - oldRightBottom;
483 		delta.x *= fHorizontal;
484 		delta.y *= fVertical;
487 		float moveX = fHorizontal == LEFT ? delta.x : 0;
488 		float moveY = fVertical == TOP ? delta.y : 0;
1005 DefaultWindowBehaviour::AlterDeltaForSnap(Window* window, BPoint& delta,
1008 	return fMagneticBorder.AlterDeltaForSnap(window, delta, now);