onPanUpdate method
Implementation
onPanUpdate(
DragUpdateDetails details, double widgetWidth, double widgetHeight) {
rightPadding = (rightPadding -= details.delta.dx)
.clamp(5, videoLayoutWidth - 5 - widgetWidth);
if (topPadding + details.delta.dy > 5) {
topPadding = (topPadding += details.delta.dy)
.clamp(5, videoLayoutHeight - 5 - widgetHeight);
}
}