Added ZoomWidget::onPathDrop

include/math.hpp

@@ -120,15 +120,6 @@ inline float sincf(float x) {
 	return sinf(x) / x;
 }
 
-inline float getf(const float *p, float v = 0.0) {
-	return p ? *p : v;
-}
-
-inline void setf(float *p, float v) {
-	if (p)
-		*p = v;
-}
-
 /** Linearly interpolate an array `p` with index `x`
 Assumes that the array at `p` is of length at least floor(x)+1.
 */
@@ -139,7 +130,7 @@ inline float interpf(const float *p, float x) {
 }
 
 /** Complex multiply c = a * b
-It is of course acceptable to reuse arguments
+Arguments may be the same pointers
 i.e. cmultf(&ar, &ai, ar, ai, br, bi)
 */
 inline void cmultf(float *cr, float *ci, float ar, float ai, float br, float bi) {

include/widgets.hpp

@@ -178,6 +178,7 @@ struct ZoomWidget : Widget {
 	void onMouseMove(EventMouseMove &e) override;
 	void onHoverKey(EventHoverKey &e) override;
 	void onScroll(EventScroll &e) override;
+	void onPathDrop(EventPathDrop &e) override;
 };
 
 ////////////////////

src/widgets/ZoomWidget.cpp

@@ -65,5 +65,12 @@ void ZoomWidget::onScroll(EventScroll &e) {
 	e.pos = pos;
 }
 
+void ZoomWidget::onPathDrop(EventPathDrop &e) {
+	Vec pos = e.pos;
+	e.pos = e.pos.div(zoom);
+	Widget::onPathDrop(e);
+	e.pos = pos;
+}
+
 
 } // namespace rack